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Fazmiya MJA, Sultana A, Heyat MBB, Parveen S, Rahman K, Akhtar F, Khan AA, Alanazi AM, Ahmed Z, Díez IDLT, Ballester JB, Saripalli TSK. Efficacy of a vaginal suppository formulation prepared with Acacia arabica (Lam.) Willd. gum and Cinnamomum camphora (L.) J. Presl. in heavy menstrual bleeding analyzed using a machine learning technique. Front Pharmacol 2024; 15:1331622. [PMID: 38410133 PMCID: PMC10894987 DOI: 10.3389/fphar.2024.1331622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/16/2024] [Indexed: 02/28/2024] Open
Abstract
Objective: This study aims to determine the efficacy of the Acacia arabica (Lam.) Willd. and Cinnamomum camphora (L.) J. Presl. vaginal suppository in addressing heavy menstrual bleeding (HMB) and their impact on participants' health-related quality of life (HRQoL) analyzed using machine learning algorithms. Method: A total of 62 participants were enrolled in a double-dummy, single-center study. They were randomly assigned to either the suppository group (SG), receiving a formulation prepared with Acacia arabica gum (Gond Babul) and camphor from Cinnamomum camphora (Kafoor) through two vaginal suppositories (each weighing 3,500 mg) for 7 days at bedtime along with oral placebo capsules, or the tranexamic group (TG), receiving oral tranexamic acid (500 mg) twice a day for 5 days and two placebo vaginal suppositories during menstruation at bedtime for three consecutive menstrual cycles. The primary outcome was the pictorial blood loss assessment chart (PBLAC) for HMB, and secondary outcomes included hemoglobin level and SF-36 HRQoL questionnaire scores. Additionally, machine learning algorithms such as k-nearest neighbor (KNN), AdaBoost (AB), naive Bayes (NB), and random forest (RF) classifiers were employed for analysis. Results: In the SG and TG, the mean PBLAC score decreased from 635.322 ± 504.23 to 67.70 ± 22.37 and 512.93 ± 283.57 to 97.96 ± 39.25, respectively, at post-intervention (TF3), demonstrating a statistically significant difference (p < 0.001). A higher percentage of participants in the SG achieved normal menstrual blood loss compared to the TG (93.5% vs 74.2%). The SG showed a considerable improvement in total SF-36 scores (73.56%) compared to the TG (65.65%), with a statistically significant difference (p < 0.001). Additionally, no serious adverse events were reported in either group. Notably, machine learning algorithms, particularly AB and KNN, demonstrated the highest accuracy within cross-validation models for both primary and secondary outcomes. Conclusion: The A. arabica and C. camphora vaginal suppository is effective, cost-effective, and safe in controlling HMB. This botanical vaginal suppository provides a novel and innovative alternative to traditional interventions, demonstrating promise as an effective management approach for HMB.
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Affiliation(s)
- Mohamed Joonus Aynul Fazmiya
- Department of Ilmul Qabalat wa Amraze Niswan, National Institute of Unani Medicine, Ministry of AYUSH, Bengaluru, India
| | - Arshiya Sultana
- Department of Ilmul Qabalat wa Amraze Niswan, National Institute of Unani Medicine, Ministry of AYUSH, Bengaluru, India
| | - Md Belal Bin Heyat
- CenBRAIN Neurotech Center of Excellence, School of Engineering, Westlake University, Hangzhou, China
| | - Saba Parveen
- College of Electronics and Information Engineering, Shenzhen University, Shenzhen, China
| | - Khaleequr Rahman
- Department of Ilmul Saidla, National Institute of Unani Medicine, Ministry of AYUSH, Bengaluru, India
| | - Faijan Akhtar
- School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Amer M. Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Zaheer Ahmed
- Central Council for Research in Unani Medicine, New Delhi, India
| | | | - Julién Brito Ballester
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Santander, Spain
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad Internacional Iberoamericana, Arecibo, PR, United States
- Research Group on Foods, Nutritional Biochemistry and Health, Universidad de La Romana, La Romana, Dominican Republic
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Effect of Evening Primrose Oil Supplementation on Biochemical Parameters and Nutrition of Patients Treated with Isotretinoin for Acne Vulgaris: A Randomized Double-Blind Trial. Nutrients 2022; 14:nu14071342. [PMID: 35405955 PMCID: PMC9002552 DOI: 10.3390/nu14071342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 12/12/2022] Open
Abstract
Background: Acne vulgaris is one of the most common skin diseases. One of the therapeutic options recommended for severe acne or acne that has not responded to previous therapies is isotretinoin. However, its use may lead to adverse changes in the serum lipid profile and increased levels of transaminases. In this study, we evaluated the effect of supplementation with evening primrose oil in acne vulgaris patients treated with isotretinoin on blood lipid parameters and transaminase activity. Methods: Study participants were randomly assigned to two treatments: conventional with isotretinoin (25 patients) and novel with isotretinoin combined with evening primrose oil (4 × 510 mg/day; 25 patients) for 9 months. Results: Compared to isotretinoin treatment, isotretinoin treatment combined with evening primrose oil had a positive effect on TCH concentrations (mean: 198 vs. 161, p < 0.001), LDL (95.9 vs. 60.2, p < 0.001), HDL (51.0 vs. 48.0, p < 0.001), TG (114 vs. 95.0, p < 0.001), ALT (24.0 vs. 22.0, p < 0.001), and AST (28.0 vs. 22.0, p < 0.001), but had no effect on the energy and ingredient content of the diets (p > 0.05) after treatment. Conclusion: Evening primrose oil was found to have beneficial effects on lipid profiles and transaminase activity during isotretinoin treatment. However, longer studies are needed to make more reliable decisions regarding the use of evening primrose oil and its safety in clinical practice. The evening primrose oil treatment group also showed a reduction in dietary energy due to a reduction in dietary protein and carbohydrates.
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Miller WG, Greenberg N. Harmonization and Standardization: Where Are We Now? J Appl Lab Med 2020; 6:510-521. [PMID: 33241270 DOI: 10.1093/jalm/jfaa189] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 09/22/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND The purpose of a medical laboratory test is to provide information on the pathophysiologic condition of an individual patient as an aid in diagnosis, therapy, or assessment of risk for a disease. For optimal laboratory service, results from different measurement procedures (MPs) for the same measurand should be equivalent (harmonized) within stated specifications, enabling the results to be used reliably for medical decisions. The term "harmonization" refers to any process that enables establishing equivalence of reported values among different end-user MPs. The term "standardization" refers to achieving harmonization by metrological traceability of patients' results to higher order reference materials and/or reference measurement procedures. CONTENT New procedures for harmonization and standardization were published in 2020 by the International Organization for Standardization (ISO) and by the IFCC. ISO 17511:2020 provides revised requirements for establishing metrologically traceable calibration hierarchies for end-user MPs used in clinical laboratories. ISO 21151:2020 provides new requirements to implement a harmonization protocol to address the situation when there are no fit-for-purpose certified reference materials or reference MPs available for a measurand. The IFCC Working Group on Commutability published recommendations for applying a correction for noncommutability of a certified reference material to enable using that material in a metrologically traceable calibration hierarchy for an end-user MP. SUMMARY We review metrological traceability and how these new approaches will improve the capability to achieve harmonized results for clinical samples.
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Affiliation(s)
- W Greg Miller
- Department of Pathology, Virginia Commonwealth University, Richmond, VA
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Dakieva KZ, Tsyganov AP, Egorina AV, Sharipkhanova AS, Sedelev VA, Sadykanova GE, Chursin AS. The effect of work environment on the biochemical profile of workers operating at the Ust-Kamenogorsk Titanium and Magnesium Plant. Toxicol Ind Health 2020; 36:591-603. [PMID: 33064062 DOI: 10.1177/0748233720941731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study explored biochemical parameters of blood in workers operating in the main workshops at the Ust-Kamenogorsk Titanium and Magnesium Plant: magnesium (Mg) workshop (furnace operator, chlorinator operator, and electrolyzer operator), titanium tetrachloride workshop (mill operator and titanium (Ti) production operator), and Ti sponge workshop (reduction furnace operator, knockout operator, and crushing machine operator). The control group consisted of 112 male workers, whose duties were not related to similar occupational hazards (plumbers, electricians, janitors cleaning the administrative building, security guards, and carpenters). The activity of gamma-glutamyl transferase, aspartate aminotransferase, alanine aminotransferase, creatine phosphokinase, lactate dehydrogenase, cholinesterase, alkaline phosphate, and α-amylase and the concentration of serum calcium, Mg, phosphorus, and chloride ion were measured. To clarify the nature of pathological changes that occur in the body of mammals under the influence of toxic gases and dust, this study also included 130 sexually mature, white female rats. Animals and workers were exposed to examination of the same indicators. Changes in test results of enzymes and minerals indicated a negative impact that harmful production factors may have had on the bodies of workers. Findings showed significant fluctuations in enzyme and mineral blood profiles of workers as compared to controls. In the test animals, changes in the enzyme activity and mineral blood composition were as diverse as in the workers. These findings will be useful when identifying markers of a negative impact of harmful substances in an industrial workplace and when developing measures to prevent employees from developing an occupational disease.
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Affiliation(s)
| | | | - Anna V Egorina
- EKSU by 186030Sarsen Amanzholov, Ust-Kamenogorsk, Kazakhstan
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Mingju H, Minyu W, Xiaoxiao G, Sumei L, Jianping M, Wanshan M. Macro-aspartate aminotransferase syndrome: a case report. ACTA ACUST UNITED AC 2020; 58:e96-e99. [PMID: 32112698 DOI: 10.1515/cclm-2019-0618] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 07/22/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Hao Mingju
- Department of Laboratory Medicine, Shandong Provincial Qianfoshan Hospital , Shandong University , Jinan , P.R. China
| | - Wang Minyu
- Department of Laboratory Medicine, Shandong Provincial Qianfoshan Hospital , Shandong University , Jinan , P.R. China
| | - Ge Xiaoxiao
- Department of Laboratory Medicine, Shandong Provincial Qianfoshan Hospital , Shandong University , Jinan , P.R. China
| | - Lu Sumei
- Department of Laboratory Medicine, Shandong Provincial Qianfoshan Hospital , Shandong University , Jinan , P.R. China
| | - Ma Jianping
- Department of Laboratory Medicine, Shandong Provincial Qianfoshan Hospital , Shandong University , Jinan , P.R. China
| | - Ma Wanshan
- Department of Laboratory Medicine, Shandong Provincial Qianfoshan Hospital , Shandong University , Jinan , P.R. China
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Zhou J, Chen L, Yang X, Huang X, Wang Z, Peng P, Lian J. Preliminary study of the relationship between promoter methylation of the ANGPTL2 gene and coronary heart disease. J Clin Lab Anal 2018; 33:e22702. [PMID: 30461060 DOI: 10.1002/jcla.22702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 10/01/2018] [Accepted: 10/01/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Coronary heart disease (CHD) is primarily caused by atherosclerosis of coronary arteries. It is largely an inflammatory disease of the vascular wall. The inflammation is related to DNA methylation. Angiopoietin-like protein 2 (ANGPTL2) has various functions in several chronic inflammatory diseases. Macrophage-derived ANGPTL2 was reported to accelerate CHD development. It is reported that DNA hypomethylation in the promoter region of ANGPTL2 gene was associated with acute coronary syndrome (ACS), a type of CHD. Our objective was to explore the correlation between promoter methylation of the ANGPTL2 gene and CHD, and to investigate the association between methylation status and clinical characteristics of CHD patients. METHODS Firstly, we collected 122 CHD patients and 58 non-CHD participants from Han Chinese population and purified the peripheral blood DNA. The purified DNA was subjected to bisulfite modification. After bisulfite conversion, the target DNA locus was amplified using polymerase chain reaction (PCR), and the PCR products were measured by pyrosequencing. Finally, the methylation level was calculated according to the sequencing result, and the data were analyzed using xx software. RESULTS CHD patients had a relatively lower methylation levels (P50: 7.67% [P25: 6.22%, P75: 10.43%]) in the ANGPTL2 promoter region than did controls (P50: 8.25% [P25: 5.46%, P75: 17.98%], P = 0.001), indicating an association between ANGPTL2 promoter methylation and CHD (OR: 0.890; 95% CI, 0.832-0.953; adjusted P = 0.001). A breakdown analysis by gender showed that ANGPTL2 promoter methylation was associated with CHD in females (adjusted P = 0.002) but not in males (adjusted P = 0.404). We found no correlation between gene methylation and other clinical characteristics. CONCLUSIONS The present work provides evidence to support an association between ANGPTL2 promoter DNA methylation status and the risk profile of CHD in females. Our data indicated that in females, promoter DNA hypomethylation of the ANGPTL2 gene is associated with an increased risk of CHD.
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Affiliation(s)
- Jianqing Zhou
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Li Chen
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China.,School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Xi Yang
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Xiaoyan Huang
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Zicheng Wang
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Ping Peng
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Jiangfang Lian
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
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Deprez L, Toussaint B, Zegers I, Schimmel H, Grote-Koska D, Klauke R, Gella FJ, Orth M, Lessinger JM, Trenti T, Nilsson G, Ceriotti F. Commutability Assessment of Candidate Reference Materials for Pancreatic α-Amylase. Clin Chem 2018; 64:1193-1202. [DOI: 10.1373/clinchem.2018.289744] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 05/23/2018] [Indexed: 12/18/2022]
Abstract
Abstract
BACKGROUND
Measurement standardization of the catalytic concentration of α-amylase in serum is based on 3 pillars: the primary reference measurement procedure (PRMP), reference laboratories, and suitable certified reference materials (CRMs). Commutability is a prerequisite when using a CRM for calibration and trueness control of routine methods or for value transfer from the PRMP to end-user calibrators of routine methods through a calibration hierarchy.
METHODS
We performed a commutability study with 30 serum pools and 5 candidate reference materials (RMs) for pancreatic α-amylase using an automated version of the PRMP and 5 different routine methods. Four candidate RMs had an artificial matrix, each with a different composition, and 1 candidate RM was based on human serum. Data were analyzed according to a linear regression analysis with prediction interval as described in the Clinical and Laboratory Standards Institute guideline EP30-A and a difference in bias analysis as described in the recommendations of the IFCC Working Group on Commutability.
RESULTS
The commutability profile of the 4 candidate RMs with an artificial matrix was variable. Only 1 candidate RM, with human serum albumin in the matrix, showed a good profile like that of the candidate RM based on serum. The comparison of both commutability assessment approaches indicated some differences because of inconclusive results for the difference in bias approach, suggesting a large uncertainty on the commutability assessment.
CONCLUSIONS
A CRM for pancreatic amylase in an artificial matrix can be commutable for routine methods using the same substrate as the PRMP, but the matrix composition is crucial.
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Affiliation(s)
- Liesbet Deprez
- European Commission's Joint Research Centre (JRC), Geel, Belgium
| | | | - Ingrid Zegers
- European Commission's Joint Research Centre (JRC), Geel, Belgium
| | - Heinz Schimmel
- European Commission's Joint Research Centre (JRC), Geel, Belgium
| | - Denis Grote-Koska
- Medizinische Hochschule Hannover, Institut für Klinische Chemie, Hannover, Germany
| | - Rainer Klauke
- Medizinische Hochschule Hannover, Institut für Klinische Chemie, Hannover, Germany
| | | | - Matthias Orth
- Vinzenz von Paul Kliniken gGmbH, Institut für Laboratoriumsmedizin, Stuttgart, Germany
- Ruprecht Karls Universität, Medizinische Fakultät Mannheim, Mannheim, Germany
| | - Jean-Marc Lessinger
- Laboratory of Biochemistry and Molecular Biology, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Tommaso Trenti
- Department of Laboratory Medicine and Pathology, Ospedale S. Agostino Estense, Modena, Italy
| | | | - Ferruccio Ceriotti
- Clinical Laboratory, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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Peng P, Wang L, Yang X, Huang X, Ba Y, Chen X, Guo J, Lian J, Zhou J. A preliminary study of the relationship between promoter methylation of the ABCG1, GALNT2 and HMGCR genes and coronary heart disease. PLoS One 2014; 9:e102265. [PMID: 25084356 PMCID: PMC4118847 DOI: 10.1371/journal.pone.0102265] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 06/16/2014] [Indexed: 11/19/2022] Open
Abstract
AIMS To investigate the association of ABCG1, GALNT2 and HMGCR genes promoter DNA methylation with coronary heart disease (CHD) and explore the interaction between their methylation status and the CHD patients' clinical characteristics in Han Chinese population. METHODS AND RESULTS Methylation-specific polymerase chain reaction (MSP) technology was used to examine the role of the aberrant gene promoter methylation in CHD in Han Chinese population. A total of 85 CHD patients and 54 participants without CHD confirmed by angiography were recruited. 82.8% of the participants with ABCG1 gene promoter hypermethylation have CHD, while only 17.4% of the participants without hypermethylation have it. The average age of the participants with GALNT2 gene promoter hypermethylation is 62.10 ± 8.21, while that of the participants without hypermethylation is 57.28 ± 9.87; in the former group, 75.4% of the participants have CHD, compared to only 50% in the latter group. As for the HMGCR gene, the average age of the participants with promoter hypermethylation is 63.24 ± 8.10 and that of the participants without hypermethylation is 57.79 ± 9.55; its promoter hypermethylation is likely to be related to smoking. Our results indicated a significant statistical association of promoter methylation of the ABCG1 gene with increased risk of CHD (OR = 19.966; 95% CI, 7.319-54.468; P*<0.001; P*: adjusted for age, gender, smoking, lipid level, hypertension, and diabetes). Similar results were obtained for that of the GALNT2 gene (OR = 2.978; 95% CI, 1.335-6.646; P* = 0.008), but not of HMGCR gene (OR = 1.388; 95% CI, 0.572-3.371; P* = 0.469). CONCLUSIONS The present work provides evidence to support the association of promoter DNA methylation status with the risk profile of CHD. Our data indicates that promoter DNA hypermethylation of the ABCG1 and GALNT2 genes, but not the HMGCR gene, is associated with an increased risk of CHD. CHD, smoking and aging are likely to be the important factors influencing DNA hypermethylation.
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Affiliation(s)
- Ping Peng
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
- The Affiliated Hospital, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Lu Wang
- School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Xi Yang
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Xiaoyan Huang
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Yanna Ba
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
- The Affiliated Hospital, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Xiaoliang Chen
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
- The Affiliated Hospital, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Jian Guo
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
- The Affiliated Hospital, School of Medicine, Ningbo University, Ningbo, Zhejiang, China
| | - Jiangfang Lian
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Jianqing Zhou
- Ningbo Medical Center, Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
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Jansen R, Jassam N, Thomas A, Perich C, Fernandez-Calle P, Faria AP, Correia H, Barth JH, Weykamp C, Cobbaert C, Thelen M, Ricós C. A category 1 EQA scheme for comparison of laboratory performance and method performance: An international pilot study in the framework of the Calibration 2000 project. Clin Chim Acta 2014; 432:90-8. [DOI: 10.1016/j.cca.2013.11.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Revised: 11/05/2013] [Accepted: 11/05/2013] [Indexed: 11/16/2022]
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10
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Jiang D, Zheng D, Wang L, Huang Y, Liu H, Xu L, Liao Q, Liu P, Shi X, Wang Z, Sun L, Zhou Q, Li N, Xu L, Le Y, Ye M, Shao G, Duan S. Elevated PLA2G7 gene promoter methylation as a gender-specific marker of aging increases the risk of coronary heart disease in females. PLoS One 2013; 8:e59752. [PMID: 23555769 PMCID: PMC3610900 DOI: 10.1371/journal.pone.0059752] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 02/18/2013] [Indexed: 12/22/2022] Open
Abstract
PLA2G7 gene product is a secreted enzyme whose activity is associated with coronary heart disease (CHD). The goal of our study is to investigate the contribution of PLA2G7 promoter DNA methylation to the risk of CHD. Using the bisulphite pyrosequencing technology, PLA2G7 methylation was measured among 36 CHD cases and 36 well-matched controls. Our results indicated that there was a significant association between PLA2G7 methylation and CHD (adjusted P = 0.025). Significant gender-specific correlation was observed between age and PLA2G7 methylation (males: adjusted r = −0.365, adjusted P = 0.037; females: adjusted r = 0.373, adjusted P = 0.035). A breakdown analysis by gender showed that PLA2G7 methylation was significantly associated with CHD in females (adjusted P = 0.003) but not in males. A further two-way ANOVA analysis showed there was a significant interaction between gender and status of CHD for PLA2G7 methylation (gender*CHD: P = 6.04E−7). Moreover, PLA2G7 methylation is associated with the levels of total cholesterols (TC, r = 0.462, P = 0.009), triglyceride (TG, r = 0.414, P = 0.02) and Apolipoprotein B (ApoB, r = 0.396, P = 0.028) in females but not in males (adjusted P>0.4). Receiver operating characteristic (ROC) curves showed that PLA2G7 methylation could predict the risk of CHD in females (area under curve (AUC) = 0.912, P = 2.40E−5). Our results suggest that PLA2G7 methylation changes with aging in a gender-specific pattern. The correlation between PLA2G7 methylation and CHD risk in females is independent of other parameters including age, smoking, diabetes and hypertension. PLA2G7 methylation might exert its effects on the risk of CHD by regulating the levels of TC, TG, and ApoB in females. The gender disparities in the PLA2G7 methylation may play a role in the molecular mechanisms underlying the pathophysiology of CHD.
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Affiliation(s)
- Danjie Jiang
- Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University, Ningbo, Zhejiang, China
| | - Dawei Zheng
- Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Lingyan Wang
- Bank of Blood Products, Ningbo No.2 Hospital, Ningbo, Zhejiang, China
| | - Yi Huang
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University, Ningbo, Zhejiang, China
| | - Haibo Liu
- Yinzhou People’s Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Leiting Xu
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University, Ningbo, Zhejiang, China
| | - Qi Liao
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University, Ningbo, Zhejiang, China
| | - Panpan Liu
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University, Ningbo, Zhejiang, China
| | - Xinbao Shi
- Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Zhaoyang Wang
- Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Lebo Sun
- Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Qingyun Zhou
- Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Ni Li
- Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
| | - Limin Xu
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University, Ningbo, Zhejiang, China
| | - Yanping Le
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University, Ningbo, Zhejiang, China
| | - Meng Ye
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- * E-mail: (SD); (GS); (MY)
| | - Guofeng Shao
- Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang, China
- * E-mail: (SD); (GS); (MY)
| | - Shiwei Duan
- The Affiliated Hospital, Ningbo University, Ningbo, Zhejiang, China
- Zhejiang Provincial Key Laboratory of Pathophysiology, Ningbo University, Ningbo, Zhejiang, China
- * E-mail: (SD); (GS); (MY)
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Schumann G, Klauke R, Canalias F, Bossert-Reuther S, Franck PFH, Gella FJ, Jørgensen PJ, Kang D, Lessinger JM, Panteghini M, Ceriotti F. IFCC primary reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 °C. Part 9: reference procedure for the measurement of catalytic concentration of alkaline phosphatase International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) Scientific Division, Committee on Reference Systems of Enzymes (C-RSE) (1)). Clin Chem Lab Med 2011; 49:1439-46. [PMID: 21702699 DOI: 10.1515/cclm.2011.621] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract This paper is the ninth in a series dealing with reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 °C and the certification of reference preparations. Other parts deal with: Part 1. The concept of reference procedures for the measurement of catalytic activity concentrations of enzymes; Part 2. Reference procedure for the measurement of catalytic concentration of creatine kinase; Part 3. Reference procedure for the measurement of catalytic concentration of lactate dehydrogenase; Part 4. Reference procedure for the measurement of catalytic concentration of alanine aminotransferase; Part 5. Reference procedure for the measurement of catalytic concentration of aspartate aminotransferase; Part 6. Reference procedure for the measurement of catalytic concentration of γ-glutamyltransferase; Part 7. Certification of four reference materials for the determination of enzymatic activity of γ-glutamyltransferase, lactate dehydrogenase, alanine aminotransferase and creatine kinase at 37 °C; Part 8. Reference procedure for the measurement of catalytic concentration of α-amylase. The procedure described here is derived from the previously described 30 °C IFCC reference method. Differences are tabulated and commented on in Appendix 1.
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Affiliation(s)
- Gerhard Schumann
- Medizinische Hochschule Hannover, Institut für Klinische Chemie, Hannover, Germany
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Traceability and standardisation. Clin Chem Lab Med 2011. [DOI: 10.1515/cclm.2011.530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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