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Nathella PK, Padmapriyadarsini C, Nancy A, Karunanithi K, Selvaraj N, Renji RM, Shrinivasa B, Babu S. BCG vaccination is associated with longitudinal changes in systemic eicosanoid levels in elderly individuals: A secondary outcome analysis. Heliyon 2024; 10:e32643. [PMID: 38975122 PMCID: PMC11226842 DOI: 10.1016/j.heliyon.2024.e32643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/06/2024] [Accepted: 06/06/2024] [Indexed: 07/09/2024] Open
Abstract
We investigated how BCG vaccination affects the levels of certain eicosanoids, namely Leukotriene B4, 15-epimer of LXA4, prostaglandin F2, Lipoxin A4, Prostaglandin E2 and Resolvin D1 in the plasma of healthy elderly individuals (aged 60-80) before vaccination, one month post-vaccination (M1), and six months post-vaccination (M6). This study is part of the clinical trial "BCG Vaccine Study: Reducing COVID-19 Impact on the Elderly in Indian Hotspots," registered in the clinical trial registry (NCT04475302). While some primary outcomes have been previously reported, this analysis delves into the immunological outcomes. Our findings indicate that BCG vaccination leads to reduced plasma levels of 15-epi-LXA4, LXA4, PGE2, and Resolvin D1 at both M1 and M6. In contrast, there is a notable increase in circulating levels of LTB4 at these time points following BCG vaccination. This underscores the immunomodulatory effects of BCG vaccination and hints at its potential to modulate immune responses by dampening inflammatory reactions.
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Affiliation(s)
| | | | - Arul Nancy
- ICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India
| | | | - Nandhini Selvaraj
- ICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India
| | - Rachel Mariam Renji
- ICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India
| | - B.M. Shrinivasa
- ICMR-National Institute for Research in Tuberculosis, Chennai, India
| | - Subash Babu
- ICMR-National Institute for Research in Tuberculosis-International Center for Excellence in Research, Chennai, India
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Lacalle E, Fernández-Alegre E, Soriano-Úbeda C, Martínez-Martínez S, Domínguez JC, González-Montaña JR, Morrell JM, Martínez-Pastor F. Single layer centrifugation (SLC) for bacterial removal with Porcicoll positively modifies chromatin structure in boar spermatozoa. Theriogenology 2023; 201:95-105. [PMID: 36857978 DOI: 10.1016/j.theriogenology.2023.02.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023]
Abstract
The storage of boar semen samples at 17 °C for artificial insemination (AI) doses enables the proliferation of the bacteria, making antibiotics necessary. This can contribute to the development of antimicrobial resistance (AMR). This study tested bacterial presence and sperm chromatin structure after using a low-density colloid (Porcicoll) as an antibiotic alternative to eliminate bacteria. Ejaculates (8 boars, 3 ejaculates each) were split as control and low-density colloid centrifugation (single layer centrifugation, SLC, 20%, and 30% Porcicoll) into 500 ml tubes. Analyses were carried out at days 0, 3, and 7 (17 °C) for microbial presence and sperm chromatin structure analysis: %DFI (DNA fragmentation) and %HDS (chromatin immaturity), monobromobimane (mBBr; free thiols and disulfide bridges), and chromomycin A3 (CMA3; chromatin compaction). Besides comparing bacterial presence (7 species identified) and chromatin variables between treatments, the associations between these sets of variables were described by canonical correlation analysis (CCA). Results showed a significant decrease of some bacteria or a complete removal after SLC (especially for P30). SLC also caused a decrease of %HDS and an increase of disulfide bridges and low and medium mBBr populations, suggesting the removal of immature sperm (poor chromatin compaction). CCA showed an association pattern compatible with the degradation of sperm chromatin parameters with bacterial contamination, especially Enterobacteria, P. aeuriginosa, and K. variicola. In conclusion, bacterial contamination affects sperm chromatin beyond DNA fragmentation; SLC with low-density colloid not only removes bacteria from boar semen, but also chromatin structure is enhanced after selection.
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Affiliation(s)
- Estíbaliz Lacalle
- Institute of Animal Health and Cattle Development (INDEGSAL), Universidad de León, León, Spain; Bianor Biotech SL, León, Spain
| | - Estela Fernández-Alegre
- Institute of Animal Health and Cattle Development (INDEGSAL), Universidad de León, León, Spain; Bianor Biotech SL, León, Spain
| | - Cristina Soriano-Úbeda
- Institute of Animal Health and Cattle Development (INDEGSAL), Universidad de León, León, Spain; Department of Animal Medicine, Surgery and Anatomy (Animal Medicine and Surgery), Universidad de León, León, Spain
| | | | - Juan Carlos Domínguez
- Institute of Animal Health and Cattle Development (INDEGSAL), Universidad de León, León, Spain; Department of Animal Medicine, Surgery and Anatomy (Animal Medicine and Surgery), Universidad de León, León, Spain
| | - J Ramiro González-Montaña
- Institute of Animal Health and Cattle Development (INDEGSAL), Universidad de León, León, Spain; Department of Animal Medicine, Surgery and Anatomy (Animal Medicine and Surgery), Universidad de León, León, Spain
| | - Jane M Morrell
- Clinical Sciences, Swedish University of Agricultural Sciences, Box 7054, SE-75057, Uppsala, Sweden
| | - Felipe Martínez-Pastor
- Institute of Animal Health and Cattle Development (INDEGSAL), Universidad de León, León, Spain; Department of Molecular Biology (Cell Biology), Universidad de León, León, Spain.
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Wu W, Cheng R, Boucetta H, Xu L, Pan JR, Song M, Lu YT, Hang TJ. Differences in Multicomponent Pharmacokinetics, Tissue Distribution, and Excretion of Tripterygium Glycosides Tablets in Normal and Adriamycin-Induced Nephrotic Syndrome Rat Models and Correlations With Efficacy and Hepatotoxicity. Front Pharmacol 2022; 13:910923. [PMID: 35754482 PMCID: PMC9221999 DOI: 10.3389/fphar.2022.910923] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/06/2022] [Indexed: 01/14/2023] Open
Abstract
Tripterygium glycosides tablets (TGT) are widely used for treating nephrotic syndrome (NS), but hepatotoxicity is frequently reported. The presence of underlying disease(s) can alter the disposition of drugs and affect their efficacy and toxicity. However, no studies have reported the impact of NS on the ADME profiles of TGT or its subsequent impact on the efficacy and toxicity. Thus, the efficacy and hepatotoxicity of TGT were evaluated in normal and NS rats after oral administration of TGT (10 mg/kg/day) for 4 weeks. The corresponding ADME profiles of the six key TGT components (triptolide (TPL), wilforlide A (WA), wilforgine (WFG), wilfortrine (WFT), wilfordine (WFD), and wilforine (WFR)) were also measured and compared in normal and NS rats after a single oral gavage of 10 mg/kg TGT. Canonical correlation analysis (CCA) of the severity of NS and the in vivo exposure of the six key TGT components was performed to screen the anti–NS and hepatotoxic material bases of TGT. Finally, the efficacy and hepatotoxicity of the target compounds were evaluated in vitro. The results showed that TGT decreased the NS symptoms in rats, but caused worse hepatotoxicity under the NS state. Significant differences in the ADME profiles of the six key TGT components between the normal and NS rats were as follows: higher plasma and tissue exposure, lower urinary and biliary excretion, and higher fecal excretion for NS rats. Based on CCA and in vitro verification, TPL, WA, WFG, WFT, WFD, and WFR were identified as the anti–NS material bases of TGT, whereas TPL, WFG, WFT, and WFD were recognized as the hepatotoxic material bases. In conclusion, NS significantly altered the ADME profiles of the six key TGT components detected in rats, which were related to the anti–NS and hepatotoxic effects of TGT. These results are useful for the rational clinical applications of TGT.
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Affiliation(s)
- Wei Wu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing, China.,Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Rui Cheng
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing, China.,Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Hamza Boucetta
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing, China.,Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Lei Xu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing, China.,Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Jing-Ru Pan
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing, China.,Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Min Song
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing, China.,Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Yu-Ting Lu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing, China.,Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
| | - Tai-Jun Hang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing, China.,Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, China
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