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Chen YB, Zhan XJ, Xiao J, Zhu HM. γ-Gammaglutamyl transferase predicts all-cause mortality within three-year intervals in patients undergoing peritoneal dialysis. Ren Fail 2024; 46:2353339. [PMID: 38770975 PMCID: PMC11110871 DOI: 10.1080/0886022x.2024.2353339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 05/03/2024] [Indexed: 05/22/2024] Open
Abstract
OBJECTIVES Peritoneal dialysis (PD) serves as a vital renal replacement therapy for patients with end-stage kidney disease (ESKD). γ-Gamma-glutamyl transferase (γ-GGT) is a recognized predictor of oxidative stress and mortality. This study aimed to assess the prognostic significance of γ-GGT in predicting all-cause and cardiovascular mortality among PD patients. METHODS A retrospective study was conducted, enrolling 640 PD patients from a single center. The one-year, three-year, and five-year mortality rates for all causes and cardiovascular causes were evaluated. Kaplan-Meier survival analysis and multivariate Cox regression analysis were performed. RESULTS Within five years of initiating PD, the observed all-cause mortality rates at one, three, and five years were 11.72%, 16.09%, and 23.44%, while cardiovascular mortality rates were 2.97%, 7.34%, and 11.09%, respectively. Lower γ-GGT levels were associated with decreased all-cause mortality during one-, three-, and five-year follow-ups, along with reduced cardiovascular mortality in the first and third years, as indicated by Kaplan-Meier analysis on median γ-GGT groupings. Multivariate Cox regression analysis showed significantly decreased hazard ratios (HRs) for one- to five-year all-cause mortality and cardiovascular mortality in the lower γ-GGT group compared to higher groups. However, when sex differences were eliminated using separate tertile groupings for males and females, only the one- and three-year all-cause mortality rates demonstrated significantly reduced hazard ratios (HRs) in the lower γ-GGT groups. CONCLUSION This retrospective study suggests that γ-GGT levels have prognostic significance in predicting one- and three-year all-cause mortality among PD patients when accounting for sex differences.
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Affiliation(s)
- Yan-Bing Chen
- Department of Nephrology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Xiao-Jiang Zhan
- Department of Nephrology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Jun Xiao
- Department of Nephrology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Heng-Mei Zhu
- Department of Nephrology, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
- Department of Nephrology, South China Hospital, Medical School, Shenzhen University, Shenzhen, Guangdong, China
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Chen MS, Liu TC, Jhou MJ, Yang CT, Lu CJ. Analyzing Longitudinal Health Screening Data with Feature Ensemble and Machine Learning Techniques: Investigating Diagnostic Risk Factors of Metabolic Syndrome for Chronic Kidney Disease Stages 3a to 3b. Diagnostics (Basel) 2024; 14:825. [PMID: 38667472 PMCID: PMC11048899 DOI: 10.3390/diagnostics14080825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/12/2024] [Accepted: 04/13/2024] [Indexed: 04/28/2024] Open
Abstract
Longitudinal data, while often limited, contain valuable insights into features impacting clinical outcomes. To predict the progression of chronic kidney disease (CKD) in patients with metabolic syndrome, particularly those transitioning from stage 3a to 3b, where data are scarce, utilizing feature ensemble techniques can be advantageous. It can effectively identify crucial risk factors, influencing CKD progression, thereby enhancing model performance. Machine learning (ML) methods have gained popularity due to their ability to perform feature selection and handle complex feature interactions more effectively than traditional approaches. However, different ML methods yield varying feature importance information. This study proposes a multiphase hybrid risk factor evaluation scheme to consider the diverse feature information generated by ML methods. The scheme incorporates variable ensemble rules (VERs) to combine feature importance information, thereby aiding in the identification of important features influencing CKD progression and supporting clinical decision making. In the proposed scheme, we employ six ML models-Lasso, RF, MARS, LightGBM, XGBoost, and CatBoost-each renowned for its distinct feature selection mechanisms and widespread usage in clinical studies. By implementing our proposed scheme, thirteen features affecting CKD progression are identified, and a promising AUC score of 0.883 can be achieved when constructing a model with them.
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Affiliation(s)
- Ming-Shu Chen
- Department of Healthcare Administration, College of Healthcare & Management, Asia Eastern University of Science and Technology, New Taipei City 220, Taiwan
| | - Tzu-Chi Liu
- Graduate Institute of Business Administration, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - Mao-Jhen Jhou
- Graduate Institute of Business Administration, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - Chih-Te Yang
- Department of Business Administration, Tamkang University, New Taipei City 251, Taiwan
| | - Chi-Jie Lu
- Graduate Institute of Business Administration, Fu Jen Catholic University, New Taipei City 242, Taiwan
- Artificial Intelligence Development Center, Fu Jen Catholic University, New Taipei City 242, Taiwan
- Department of Information Management, Fu Jen Catholic University, New Taipei City 242, Taiwan
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Song X, Zha Y, Liu J, He P, He L. Associations between liver function parameters and poor clinical outcomes in peritoneal dialysis patients. Ther Apher Dial 2023; 27:12-18. [PMID: 36114736 PMCID: PMC10087744 DOI: 10.1111/1744-9987.13926] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/25/2022] [Accepted: 09/06/2022] [Indexed: 01/05/2023]
Abstract
Patients with end-stage renal disease (ESRD) have significantly lower survival rates compared with the general population of the same age. Peritoneal dialysis (PD) is an effective treatment for patients with ESRD, but the clinical outcome of PD patients is still not promising. The survival of PD patients is associated with various clinical factors, and exploring some valid risk predictors may be beneficial for this population. In this review, by integrating the latest research, we summarized the association of some common and novel liver function parameters (ALT, AST, ALP, GGT, serum bilirubin, pre-albumin, albumin, albumin-globulin ratio [AGR], serum ferritin, and hyaluronic acid) with clinical outcomes in PD patients. It may contribute to a better understanding of potential risk factors and help to develop strategies to prevent the disease progression.
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Affiliation(s)
- Xiyu Song
- School of Basic Medicine, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Yang Zha
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Jing Liu
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Peng He
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Lijie He
- Department of Nephrology, Xijing Hospital, Air Force Medical University, Xi'an, Shaanxi, People's Republic of China
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4
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Ding Q, Huang S, Sun Z, Chen K, Li X, Pei Q. A Review of Population Pharmacokinetic Models of Posaconazole. Drug Des Devel Ther 2022; 16:3691-3709. [PMID: 36277600 PMCID: PMC9584355 DOI: 10.2147/dddt.s384637] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/22/2022] [Indexed: 11/05/2022] Open
Abstract
Posaconazole is often used for the prophylaxis and treatment of invasive fungal infections (IFI). However, intra- and inter-individual differences and drug interactions affect the efficacy and safety of posaconazole. Precision dosing of posaconazole based on the population pharmacokinetic (PopPK) model may assist in making significant clinical decisions. This review aimed to comprehensively summarize the published PopPK models of posaconazole and analyze covariates that significantly influence posaconazole exposure. Articles published until May 2022 for PopPK analysis of posaconazole were searched in PubMed and EMBASE databases. Demographic characteristics, model characteristics, and results of PopPK analysis were extracted from the selected articles. In addition, the steady-state pharmacokinetic profiles of posaconazole were simulated at different covariate levels and dosing regimens. Out of the 13 studies included in our review, nine studies included adults, three included children, and one included both adults and children. All oral administration models were one-compartment models, and all intravenous administration models were two-compartment models. Body weight, proton pump inhibitors, and incidence of diarrhea were found to be important covariates. Clinically, the potential impact of factors such as patient physiopathologic characteristics and comorbid medications on posaconazole pharmacokinetics should be considered. Dose adjustment in combination with TDM or replacement with a tablet or intravenous formulation with higher exposure may be an effective way to ensure drug efficacy as well as to reduce fungal resistance. Meanwhile, published models require further external evaluation to examine extrapolation.
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Affiliation(s)
- Qin Ding
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Shuqi Huang
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Zexu Sun
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, People’s Republic of China
| | - Kaifeng Chen
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Xin Li
- Department of Hematology, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China,Xin Li, Department of Hematology, The Third Xiangya Hospital, Central South University, Changsha, 410013, People’s Republic of China, Email
| | - Qi Pei
- Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, People’s Republic of China,Correspondence: Qi Pei, Department of Pharmacy, The Third Xiangya Hospital, Central South University, Changsha, 410013, People’s Republic of China, Tel +86 1 317 041 9804, Email
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Bernard L, Zhou L, Surapaneni A, Chen J, Rebholz CM, Coresh J, Yu B, Boerwinkle E, Schlosser P, Grams ME. Serum Metabolites and Kidney Outcomes: The Atherosclerosis Risk in Communities Study. Kidney Med 2022; 4:100522. [PMID: 36046612 PMCID: PMC9420957 DOI: 10.1016/j.xkme.2022.100522] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Rationale & Objective Novel metabolite biomarkers of kidney failure with replacement therapy (KFRT) may help identify people at high risk for adverse kidney outcomes and implicated pathways may aid in developing targeted therapeutics. Study Design Prospective cohort. Setting & Participants The cohort included 3,799 Atherosclerosis Risk in Communities study participants with serum samples available for measurement at visit 1 (1987-1989). Exposure Baseline serum levels of 318 metabolites. Outcomes Incident KFRT, kidney failure (KFRT, estimated glomerular filtration rate <15 mL/min/1.73 m2, or death from kidney disease). Analytical Approach Because metabolites are often intercorrelated and represent shared pathways, we used a high dimension reduction technique called Netboost to cluster metabolites. Longitudinal associations between clusters of metabolites and KFRT and kidney failure were estimated using a Cox proportional hazards model. Results Mean age of study participants was 53 years, 61% were African American, and 13% had diabetes. There were 160 KFRT cases and 357 kidney failure cases over a mean of 23 years. The 314 metabolites were grouped in 43 clusters. Four clusters were significantly associated with risk of KFRT and 6 were associated with kidney failure (including 3 shared clusters). The 3 shared clusters suggested potential pathways perturbed early in kidney disease: cluster 5 (15 metabolites involved in alanine, aspartate, and glutamate metabolism as well as 5-oxoproline and several gamma-glutamyl amino acids), cluster 26 (6 metabolites involved in sugar and inositol phosphate metabolism), and cluster 34 (21 metabolites involved in glycerophospholipid metabolism). Several individual metabolites were also significantly associated with both KFRT and kidney failure, including glucose and mannose, which were associated with higher risk of both outcomes, and 5-oxoproline, gamma-glutamyl amino acids, linoleoylglycerophosphocholine, 1,5-anhydroglucitol, which were associated with lower risk of both outcomes. Limitations Inability to determine if the metabolites cause or are a consequence of changes in kidney function. Conclusions We identified several clusters of metabolites reproducibly associated with development of KFRT. Future experimental studies are needed to validate our findings as well as continue unraveling metabolic pathways involved in kidney function decline.
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R S, Saharia GK, Panda S, Mangaraj M. Evaluation of Homocysteine and Gamma-Glutamyl Transferase Concentrations As Markers of Chronic Kidney Disease: An Indian Perspective. Cureus 2022; 14:e22959. [PMID: 35411265 PMCID: PMC8989248 DOI: 10.7759/cureus.22959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2022] [Indexed: 01/09/2023] Open
Abstract
Background Chronic kidney disease (CKD) involves a gradual loss of kidney function over months to years. Oxidative stress plays a critical role in the pathogenesis of CKD. Homocysteine (Hcy), an amino acid derivative, is a known risk factor for oxidative stress and endothelial damage. Gamma-glutamyl transferase (GGT), an enzyme abundant on the cell surface of liver and kidney cells, is raised during oxidative stress. The objectives of this study were to estimate the concentrations of serum Hcy and GGT among CKD patients and healthy controls and to determine whether there is an association between serum Hcy and GGT levels in CKD. Methodology A total of 246 participants were needed to meet the calculated sample size. A total of 123 CKD patients meeting the inclusion and exclusion criteria were recruited as cases from the Nephrology outpatient department of our institute. Equal numbers of age- and sex-matched healthy volunteers were recruited as controls. Biophysical profiling of participants was done. Baseline investigations were recorded. A blood sample was collected from each participant and analyzed for GGT and Hcy along with other routine parameters. Results Hcy and GGT concentrations were significantly high in CKD patients compared to healthy controls. There was a significant positive correlation between serum GGT and Hcy levels (r = 0.357). Conclusions Elevated levels of GGT and Hcy in CKD patients compared to healthy controls demonstrated the oxidative stress associated with the disease. GGT and Hcy can be used as prognostic markers of the disease.
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7
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Selen T, Akoglu H, Agbaht K. Relationship between liver function tests & cardiovascular risk factors in stage 3-5 pre-dialysis chronic kidney disease. Indian J Med Res 2022; 155:397-402. [DOI: 10.4103/ijmr.ijmr_1777_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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8
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Liu X, Li Y, Zhao Q, Jiang H, Ni J, Cai H. Albumin-to-alkaline phosphatase ratio: A novel prognostic index for patients with driver mutation-negative advanced non-small cell lung cancer. CLINICAL RESPIRATORY JOURNAL 2021; 15:540-549. [PMID: 33565707 DOI: 10.1111/crj.13339] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 01/19/2021] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Albumin-to-Alkaline Phosphatase Ratio (AAPR), a novel developed prognostic index for cancers. Chemotherapy was the only method for driver mutation-negative advanced non-small cell lung cancer (DANSCLC). OBJECTIVES To evaluate the clinical significance of AAPR in these patients. METHODS We retrospectively reviewed 167 DANSCLCs and 58 healthy controls. Associations of clinicopathological characteristics and survival analysis were conducted. RESULTS Significantly decreased AAPR level was uncovered in DANSCLC patients compared to healthy controls. The correlation analysis revealed that the low AAPR level in DANSCLCs was correlated with poor differentiation (P = .024). Cox regression analysis showed that N stage, M stage, and different levels of AAPR were the independent risk factors of PFS and OS. The median PFS and OS survival ratio in patients with high and low AAPR level was, respectively, 17 months and 8 months, and 23 months and 13 months. The AUC of AAPR for both PFS and OS were higher than that of albumin and alkaline phosphatase (p < 0.05). The low AAPR was associated with much shorter PFS and OS than the high AAPR (mPFS: 8 vs. 25 months; mOS: 12 vs. 36 months). In the AP cohort, the low AAPR group experienced significantly shorter PFS and OS than the high AAPR (mPFS: 7 vs. 25 months; mOS: 12 vs. 36 months). Meanwhile, there was no significance in lung squamous cell carcinoma (LUSC) patients and GP regimens cohort. CONCLUSION AAPR significantly decreased in patients with DANSCLC, and it affects the prognosis of patients with DANSCLC and is a biomarker for DANSCLCs prognosis and treatment choice.
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Affiliation(s)
- Xiaoqin Liu
- Department of Pulmonary and Critical Care Medicine, The Affiliated Nanjing Drum Tower Hospital Clinical Medical College of Nanjing Medical University, Nanjing, PR China
| | - Yan Li
- Department of Pulmonary and Critical Care Medicine, The Affiliated Nanjing Drum Tower Hospital Clinical Medical College of Nanjing Medical University, Nanjing, PR China
| | - Qi Zhao
- Department of Pulmonary and Critical Care Medicine, The Affiliated Nanjing Drum Tower Hospital Clinical Medical College of Nanjing Medical University, Nanjing, PR China
| | - Hanyi Jiang
- Department of Pulmonary and Critical Care Medicine, The Affiliated Nanjing Drum Tower Hospital Clinical Medical College of Nanjing Medical University, Nanjing, PR China
| | - Jun Ni
- Department of Clinical Laboratory Medicine, The Affiliated Nanjing Drum Tower Hospital Clinical Medical College of Nanjing Medical University, Nanjing, PR China
| | - Hourong Cai
- Department of Pulmonary and Critical Care Medicine, The Affiliated Nanjing Drum Tower Hospital Clinical Medical College of Nanjing Medical University, Nanjing, PR China
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Majoni SW, Barzi F, Hoy W, MacIsaac RJ, Cass A, Maple-Brown L, Hughes JT. Baseline liver function tests and full blood count indices and their association with progression of chronic kidney disease and renal outcomes in Aboriginal and Torres Strait Islander people: the eGFR follow- up study. BMC Nephrol 2020; 21:523. [PMID: 33261565 PMCID: PMC7709437 DOI: 10.1186/s12882-020-02185-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 11/24/2020] [Indexed: 12/14/2022] Open
Abstract
Background Determination of risks for chronic kidney disease (CKD) progression could improve strategies to reduce progression to ESKD. The eGFR Study recruited a cohort of adult Aboriginal and Torres Strait Islander people (Indigenous Australians) from Northern Queensland, Northern Territory and Western Australia, aiming to address the heavy CKD burden experienced within these communities. Methods Using data from the eGFR study, we explored the association of baseline liver function tests (LFTs) (alanine aminotransferase (ALT), alkaline phosphatase (ALP), gamma-glutamyl transpeptidase (GGT), bilirubin and albumin) and full blood count (FBC) indices (white blood cell and red blood cell counts and haemoglobin) with annual eGFR decline and renal outcomes (first of 30% decline in eGFR with a follow-up eGFR < 60 mL/min/1.73 m2, initiation of renal replacement therapy, or renal death). Comparisons of baseline variables across eGFR categories were calculated using analysis of variance and logistic regression as appropriate. Linear and multivariable regression models were used to estimate the annual change in eGFR for changes in FBC indices and LFTs. Cox proportional hazard models were used to estimate the hazard ratio for developing renal outcome for changes in baseline FBC indices and LFTs. Results Of 547 participants, 540 had at least one baseline measure of LFTs and FBC indices. The mean age was 46.1 (14.7) years and 63.6% were female. The median follow-up was 3.1 (IQR 2.8–3.6) years. Annual decline in eGFR was associated with low serum albumin (p < 0.001) and haemoglobin (p = 0.007). After adjustment for age, gender, urine albumin/creatinine ratio, diabetes, BMI, CRP, WHR, alcohol consumption, cholesterol and triglycerides, low serum albumin (p < 0.001), haemoglobin (p = 0.012) and bilirubin (p = 0.011) were associated with annual decline in eGFR. Renal outcomes were inversely associated with serum albumin (p < 0.001), bilirubin (p = 0.012) and haemoglobin (p < 0.001) and directly with GGT (p = 0.007) and ALP (p < 0.001). Other FBC indices and LFTs were not associated with annual decline in eGFR or renal outcomes. Conclusions GGT, ALP, bilirubin, albumin and haemoglobin independently associate with renal outcomes. Contrary to findings from other studies, no association was found between renal outcomes and other FBC indices. These findings may help focus strategies to prevent disease progression in this high-risk population. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-020-02185-x.
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Affiliation(s)
- Sandawana William Majoni
- Department of Nephrology, Division of Medicine, Royal Darwin Hospital, P.O. Box 41326, Casuarina, Darwin, Northern Territory, Australia. .,Flinders University and Northern Territory Medical Program, Royal Darwin Hospital Campus, Darwin, Australia. .,Wellbeing and Preventable Chronic Diseases, Menzies School of Health Research, Charles Darwin University, Darwin, Australia.
| | - Federica Barzi
- Wellbeing and Preventable Chronic Diseases, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - Wendy Hoy
- Centre for Chronic Disease, The University of Queensland, Brisbane, St Lucia, Australia
| | - Richard J MacIsaac
- Baker Heart and Diabetes Institute, Melbourne, Australia.,Department of Medicine, University of Melbourne, Melbourne, Australia.,St. Vincent's Hospital Melbourne, Melbourne, Australia.,Department of Endocrinology & Diabetes, St Vincent's Hospital Melbourne and The University of Melbourne, Fitzroy, Victoria, Australia
| | - Alan Cass
- Wellbeing and Preventable Chronic Diseases, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - Louise Maple-Brown
- Department of Nephrology, Division of Medicine, Royal Darwin Hospital, P.O. Box 41326, Casuarina, Darwin, Northern Territory, Australia.,Wellbeing and Preventable Chronic Diseases, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - Jaquelyne T Hughes
- Department of Nephrology, Division of Medicine, Royal Darwin Hospital, P.O. Box 41326, Casuarina, Darwin, Northern Territory, Australia.,Wellbeing and Preventable Chronic Diseases, Menzies School of Health Research, Charles Darwin University, Darwin, Australia
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Belkhodja H, Belhouala K, Nehal S. Phytochemical Screening and Evaluation of the Antiarthritic Potentialof
Ammoides pusilla
Aqueous Extract on Freund's Adjuvant-Induced Rheumatoid Arthritis. PHARMACEUTICAL SCIENCES 2020. [DOI: 10.34172/ps.2020.78] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background: Ammoides pusilla plant is a species of therapeutic interest which used in traditional medicines. This work aims to valorize this plant by the characterization of their bioactive components and the evaluation of the in vivo anti-inflammatory potential against a severe disease affecting the bone structure and the stability of the articular cartilage. Methods: First, the phytochemical screening of the polyphenolic extracts of A. pusilla was carried out. The second part of our study is devoted to the evaluation of the in vivo anti-inflammatory activity of the aqueous extract of A. pusilla based on the method of Freund's adjuvant-induced rheumatoid arthritis. Results: Phytochemical tests demonstrated the richness of extract with flavonoids, tannins, coumarins, anthocyanins and triterpenes. Whereas, the quantitative determination reveals that the aqueous extract of A. pusilla is the richest with bioactive components with contents of total polyphenols, flavonoids and tannins equal to 9.52 ± 0.11 mg gallic acid/g, 4.75 ± 0.05 mg quercetin/g and 8.64 ± 0.02 mg catechin/g respectively. The results of the anti-inflammatory activity showed that the aqueous infused extract of A. pusilla has an interesting antiarthritic potential on Freund's adjuvant-induced rheumatoid arthritis in mice. It is manifested by a weight gain; a normal arthritic index and biochemical parameters close to those of Diclofenac®. Conclusion: The aqueous infused extract of A. pusilla is therefore of considerable therapeutic interest as an alternative compound for the prevention of inflammation and for the improvement in bone structure.
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Affiliation(s)
- Hamza Belkhodja
- Laboratory of Bioconversion, Microbiology Engineering and Health Safety, University of Mustapha Stambouli, Mascara, Algeria
| | - Khadidja Belhouala
- Department of Biology, University of Mustapha Stambouli, Mascara, Algeria
| | - Soumia Nehal
- Department of Biology, University of Mustapha Stambouli, Mascara, Algeria
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11
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Gunatilake S, Seneff S, Orlando L. Glyphosate's Synergistic Toxicity in Combination with Other Factors as a Cause of Chronic Kidney Disease of Unknown Origin. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E2734. [PMID: 31370256 PMCID: PMC6695815 DOI: 10.3390/ijerph16152734] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 12/22/2022]
Abstract
Chronic kidney disease of unknown etiology (CKDu) is a global epidemic. Sri Lanka has experienced a doubling of the disease every 4 or 5 years since it was first identified in the North Central province in the mid-1990s. The disease primarily affects people in agricultural regions who are missing the commonly known risk factors for CKD. Sri Lanka is not alone: health workers have reported prevalence of CKDu in Mexico, Nicaragua, El Salvador, and the state of Andhra Pradesh in India. A global search for the cause of CKDu has not identified a single factor, but rather many factors that may contribute to the etiology of the disease. Some of these factors include heat stroke leading to dehydration, toxic metals such as cadmium and arsenic, fluoride, low selenium, toxigenic cyanobacteria, nutritionally deficient diet and mycotoxins from mold exposure. Furthermore, exposure to agrichemicals, particularly glyphosate and paraquat, are likely compounding factors, and may be the primary factors. Here, we argue that glyphosate in particular is working synergistically with most of the other factors to increase toxic effects. We propose, further, that glyphosate causes insidious harm through its action as an amino acid analogue of glycine, and that this interferes with natural protective mechanisms against other exposures. Glyphosate's synergistic health effects in combination with exposure to other pollutants, in particular paraquat, and physical labor in the ubiquitous high temperatures of lowland tropical regions, could result in renal damage consistent with CKDu in Sri Lanka.
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Affiliation(s)
- Sarath Gunatilake
- Health Science Department, California State University Long Beach, Long Beach, CA 90840, USA
| | - Stephanie Seneff
- Computer Science and Artificial Intelligence Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Laura Orlando
- Environmental Health Department, Boston University School of Public Health, Boston, MA 02118, USA
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12
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Park S. Improvement of biosensor accuracy using an interference index detection system to minimize the interference effects caused by icterus and hemolysis in blood samples. Analyst 2019; 144:5223-5231. [DOI: 10.1039/c9an00555b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An IID system was developed to improve the measurement accuracy of biosensors used in clinical applications by removing the optical characteristics of interference caused by icterus and hemolysis in blood samples.
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Affiliation(s)
- Sungha Park
- IVD R&D Group
- IVD Business Team
- Health and Medical Equipment Division
- Samsung Electronics Co
- Ltd
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