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Rajamanickam A, Dasan B, Munisankar S, Nott S, Menon PA, Ahamed Shaik F, Chinnaiyan P, Nutman TB, Babu S. Impact of Strongyloides stercoralis infection on complement activation in Type 2 diabetes mellitus: Insights from a clinical and anthelmintic intervention study. PLoS Negl Trop Dis 2024; 18:e0012048. [PMID: 38564496 PMCID: PMC10986927 DOI: 10.1371/journal.pntd.0012048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Numerous studies indicate a potential protective role of helminths in diabetes mellitus (DM) progression. The complement system, vital for host defense, plays a crucial role in tissue homeostasis and immune surveillance. Dysregulated complement activation is implicated in diabetic complications. We aimed to investigate the influence of the helminth, Strongyloides stercoralis (Ss) on complement activation in individuals with type 2 DM (T2D). METHODOLOGY We assessed circulating levels of complement proteins (C1q, C2, C3, C4, C4b, C5, C5a, and MBL (Lectin)) and their regulatory components (Factor B, Factor D, Factor H, and Factor I) in individuals with T2D with (n = 60) or without concomitant Ss infection (n = 58). Additionally, we evaluated the impact of anthelmintic therapy on these parameters after 6 months in Ss-infected individuals (n = 60). RESULTS Ss+DM+ individuals demonstrated reduced levels of complement proteins (C1q, C4b, MBL (Lectin), C3, C5a, and C3b/iC3b) and complement regulatory proteins (Factor B and Factor D) compared to Ss-DM+ individuals. Following anthelmintic therapy, there was a partial reversal of these levels in Ss+DM+ individuals. CONCLUSION Our findings indicate that Ss infection reduces complement activation, potentially mitigating inflammatory processes in individuals with T2D. The study underscores the complex interplay between helminth infections, complement regulation, and diabetes mellitus, offering insights into potential therapeutic avenues.
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Affiliation(s)
| | - Bindu Dasan
- NIH-NIAID-International Center for Excellence in Research, Chennai, India
| | | | - Sujatha Nott
- Infectious Diseases, Dignity Health, Chandler, Arizona, United States of America
| | | | - Fayaz Ahamed Shaik
- NIH-NIAID-International Center for Excellence in Research, Chennai, India
| | | | - Thomas B. Nutman
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Subash Babu
- NIH-NIAID-International Center for Excellence in Research, Chennai, India
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
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Dasan B, Rajamanickam A, Munisankar S, Menon PA, Ahamed SF, Nott S, Babu S. Hookworm infection induces glycometabolic modulation in South Indian individuals with type 2 diabetes. IJID REGIONS 2023; 9:18-24. [PMID: 37745942 PMCID: PMC10514067 DOI: 10.1016/j.ijregi.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/21/2023] [Accepted: 08/26/2023] [Indexed: 09/26/2023]
Abstract
Objectives A number of epidemiological studies have demonstrated that there is an inverse relationship between helminth infections and diabetes mellitus, suggesting that helminth infection may have a positive effect on type 2 diabetes mellitus (T2DM). However, the association between hookworm infection and T2DM has barely been studied. Hence, we aimed to investigate and analyze the interaction and association between hookworm infection and T2DM. Methods We examined the effect of hookworm infection on biochemical parameters, including plasma random blood glucose, glycated hemoglobin, and the plasma levels of pancreatic hormones, incretins, and adipokines in individuals with T2DM with (INF, n = 35) or without (UN, n = 35) hookworm infection. Moreover, we re-evaluated these analyte concentrations in a subset of INF individuals 6 months following anthelmintic therapy. Results Compared to UN individuals, INF individuals had significantly lowered levels of random blood glucose and glycated hemoglobin. INF individuals also exhibited significantly diminished levels of adiponectin, adipsin, C-peptide, insulin, and glucagon compared to UN individuals. In contrast, INF individuals displayed substantially elevated levels of visfatin and incretins compared to UN individuals. Interestingly, this effect was not seen following anthelmintic treatment. Conclusion Our study findings indicate that concomitant hookworm infection exerts a beneficial effect on glycometabolic parameters in T2DM.
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Affiliation(s)
- Bindu Dasan
- National Institutes of Health-National Institute of Allergy and Infectious Diseases-International Center for Excellence in Research, Chennai, India
| | - Anuradha Rajamanickam
- National Institutes of Health-National Institute of Allergy and Infectious Diseases-International Center for Excellence in Research, Chennai, India
| | - Saravanan Munisankar
- National Institutes of Health-National Institute of Allergy and Infectious Diseases-International Center for Excellence in Research, Chennai, India
| | | | - S Fayaz Ahamed
- National Institutes of Health-National Institute of Allergy and Infectious Diseases-International Center for Excellence in Research, Chennai, India
| | - Sujatha Nott
- Infectious Diseases, Dignity Health, Chandler, USA
| | - Subash Babu
- National Institutes of Health-National Institute of Allergy and Infectious Diseases-International Center for Excellence in Research, Chennai, India
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, USA
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Kumar NP, Nancy AP, Moideen K, Menon PA, Banurekha VV, Nair D, Nott S, Babu S. Low body mass index is associated with diminished plasma cytokines and chemokines in both active and latent tuberculosis. Front Nutr 2023; 10:1194682. [PMID: 37324745 PMCID: PMC10265642 DOI: 10.3389/fnut.2023.1194682] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/09/2023] [Indexed: 06/17/2023] Open
Abstract
Introduction Low body mass index (BMI) is a major risk factor for tuberculosis (PTB). Low BMI can impair the immune system and thus might affect TB incidence. Methods We examined the plasma levels of Type 1, Type 17, pro-inflammatory, Type 2 and regulatory cytokines and CC and CXC chemokines in PTB and latent TB (LTB) individuals with low BMI (LBMI) or normal BMI (NBMI). Results Our data show that PTB is associated with significantly lower levels of IFNγ, TNFα, IL-2, IL-17A, IL-6, IL-12, IL-4 and IL-5 cytokines but significantly higher levels of IL-10, TGFβ and GM-CSF in LBMI compared to NBMI. Similarly, PTB is also associated with significantly lower levels of CCL2, CCL3, CCL11, CXCL1, CXCL9 and CXCL10 chemokines in LBMI compared to NBMI. Our data reveals that LTB is associated with significantly lower levels of IFNγ, TNFα, IL-2, IL1β, IL-12, IL-13 cytokines but significantly higher levels of IL-10, TGFβ, IL-4 and IL-22 in LBMI compared to NBMI. Similarly, LTB is also associated with significantly lower levels of CCL2, CXCL1, CXCL9 and CXCL10 and significantly higher levels of CCL1, CCL3, and CCL4 in LBMI compared to NBMI. Conclusion Thus, LBMI has a major impact on the cytokine and chemokine milieu of both PTB and LTB and might predispose to the increased risk of tuberculosis by this immunomodulatory effect.
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Affiliation(s)
| | - Arul P. Nancy
- NIAID – International Center for Excellence in Research, Chennai, India
| | - Kadar Moideen
- NIAID – International Center for Excellence in Research, Chennai, India
| | - Pradeep A. Menon
- ICMR-National Institute for Research in Tuberculosis, Chennai, India
| | | | - Dina Nair
- ICMR-National Institute for Research in Tuberculosis, Chennai, India
| | - Sujatha Nott
- Infectious Diseases, Dignity Health, Chandler, AZ, United States
| | - Subash Babu
- NIAID – International Center for Excellence in Research, Chennai, India
- LPD, NIAID, NIH, Rockville, MD, United States
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Du Y, Shi H, Yang X, Wu W. Machine learning for infection risk prediction in postoperative patients with non-mechanical ventilation and intravenous neurotargeted drugs. Front Neurol 2022; 13:942023. [PMID: 35979059 PMCID: PMC9376287 DOI: 10.3389/fneur.2022.942023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/08/2022] [Indexed: 01/30/2023] Open
Abstract
Drug efficacy can be improved by understanding the effects of anesthesia on the neurovascular system. In this study, we used machine learning algorithms to predict the risk of infection in postoperative intensive care unit (ICU) patients who are on non-mechanical ventilation and are receiving hydromorphone analgesia. In this retrospective study, 130 patients were divided into high and low dose groups of hydromorphone analgesic pump patients admitted after surgery. The white blood cells (WBC) count and incidence rate of infection was significantly higher in the high hydromorphone dosage group compared to the low hydromorphone dosage groups (p < 0.05). Furthermore, significant differences in age (P = 0.006), body mass index (BMI) (P = 0.001), WBC count (P = 0.019), C-reactive protein (CRP) (P = 0.038), hydromorphone dosage (P = 0.014), and biological sex (P = 0.024) were seen between the infected and non-infected groups. The infected group also had a longer hospital stay and an extended stay in the intensive care unit compared to the non-infected group. We identified important risk factors for the development of postoperative infections by using machine learning algorithms, including hydromorphone dosage, age, biological sex, BMI, and WBC count. Logistic regression analysis was applied to incorporate these variables to construct infection prediction models and nomograms. The area under curves (AUC) of the model were 0.835, 0.747, and 0.818 in the training group, validation group, and overall pairwise column group, respectively. Therefore, we determined that hydromorphone dosage, age, biological sex, BMI, WBC count, and CRP are significant risk factors in developing postoperative infections.
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Meca AD, Ștefănescu S, Bogdan M, Turcu-Știolică A, Nițu FM, Matei M, Cioboată R, Bugă AM, Pisoschi CG. Crosstalk between vitamin D axis, inflammation and host immunity mechanisms: A prospective study. Exp Ther Med 2021; 21:608. [PMID: 33936265 PMCID: PMC8082620 DOI: 10.3892/etm.2021.10040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 02/16/2021] [Indexed: 12/12/2022] Open
Abstract
Tuberculosis (TB) remains a public health burden, after many years at attempts for its eradication. Vitamin D (VD) status has been suggested to be related to TB susceptibility because it has the ability to regulate multiple axes of the innate and adaptive host immune response. VD mediates cathelicidin (LL-37) synthesis, a cationic bactericidal peptide, through the expression of vitamin D receptor (VDR). Host innate defense mechanisms include autophagy and apoptosis of alveolar macrophages. The present study aimed to assess the relationship between VD status, inflammation and host defense mechanisms before and after two months of first-line anti-TB pharmacotherapy. The study included newly diagnosed individuals with pulmonary TB without co-morbidities (HIV infection, diabetes, cancer) and without VD supplementation or other therapies interfering with VD serum levels. We measured serum levels of 25-hydroxyvitamin D (25-(OH)-D), the major circulating form of vitamin D, VDR, LL-37, beclin-1 (an autophagy marker) and M30 (an apoptosis biomarker) before and after two months of anti-TB treatment. Individuals presented lower levels of 25-(OH)-D before receiving first-line anti-TB treatment (T0) in comparison with its plasmatic levels after two-months of therapy (T2). At T2, patients were divided in two subgroups according the results of sputum-culture conversion. After two-months of therapy, decreased values of LL-37, beclin-1 and M30 were observed in the culture-negative patients compared to the culture-positive patients. Control of anti-TB treatment outcome could be improved by appraisal of VD status and host defense mechanisms such as autophagy and apoptosis.
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Affiliation(s)
- Andreea-Daniela Meca
- Department of Pharmacology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Simona Ștefănescu
- Clinical Laboratory, Clinical Emergency County Hospital, 200642 Craiova, Romania
| | - Maria Bogdan
- Department of Pharmacology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Adina Turcu-Știolică
- Department of Pharmacoeconomics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Floarea Mimi Nițu
- Department of Pneumology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Marius Matei
- Department of Histology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ramona Cioboată
- Department of Pneumology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ana Maria Bugă
- Department of Biochemistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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Ali ZA, Mankhi AA, Ad'hiah AH. Significance of the chemokine CXCL10 and human beta-defensin-3 as biomarkers of pulmonary tuberculosis. Tuberculosis (Edinb) 2021; 128:102078. [PMID: 33773403 DOI: 10.1016/j.tube.2021.102078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/17/2021] [Accepted: 03/10/2021] [Indexed: 01/09/2023]
Abstract
The biomarker significance of IL-35, chemokines (CXCL9 and CXCL10) and human beta-defensins (hBD2 and hBD3) was determined in pulmonary tuberculosis (TB) of 105 Iraqi patients; 37 had active disease, 41 had multi-drug resistant (MDR) PTB and 27 had a relapse of TB. A control sample of 79 healthy persons was also included. Serum levels of markers were assessed using enzyme-linked immunosorbent assay kits. Kruskal-Wallis test together with Dunn-Bonferroni post hoc test revealed significance differences between patients and controls in levels of IL-35, CXCL9, CXCL10 and hBD3, while hBD2 showed no significant difference. Receiver operating characteristic analysis demonstrated that CXCL10 and hBD3 were the most significant markers in predicting TB, particularly active disease. Logistic regression analysis proposed the susceptibility role of CXCL10 in TB. Gender- and age-dependent variations were also observed. Spearman's rank correlation analysis showed different correlations between markers in each group of patients and controls. In conclusion, CXCL10 was up-regulated in serum of TB patients, while hBD3 showed down-regulated level. Both serum proteins are possible candidate biomarkers for evaluation of TB progression, particularly in active disease.
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Affiliation(s)
- Zainab A Ali
- Biotechnology Department, College of Science, University of Baghdad, Baghdad, Iraq
| | - Ahmed A Mankhi
- National Specialized Center for Chest and Respiratory Diseases, Ministry of Health and Environment, Baghdad, Iraq
| | - Ali H Ad'hiah
- Tropical-Biological Research Unit, College of Science, University of Baghdad, Baghdad, Iraq.
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