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Han S, Gao J, Wang Z, Xiao Y, Ge Y, Liang Y, Gao J. Genetically supported causality between gut microbiota, immune cells and morphine tolerance: a two-sample Mendelian randomization study. Front Microbiol 2024; 15:1343763. [PMID: 38389539 PMCID: PMC10882271 DOI: 10.3389/fmicb.2024.1343763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/29/2024] [Indexed: 02/24/2024] Open
Abstract
Background Previous researches have suggested a significant connection between the gut microbiota/immune cells and morphine tolerance (MT), but there is still uncertainty regarding their causal relationship. Hence, our objective is to inverstigate this causal association and reveal the impact of gut microbiota/immune cells on the risk of developing MT using a two-sample Mendelian randomization (MR) study. Methods We conducted a comprehensive analysis using genome-wide association study (GWAS) summary statistics for gut microbiota, immune cells, and MT. The main approach employed was the inverse variance-weighted (IVW) method in MR. To assess horizontal pleiotropy and remove outlier single-nucleotide polymorphisms (SNPs), we utilized the Mendelian randomization pleiotropy residual sum and outlier (MR-PRESSO) technique as well as MR-Egger regression. Heterogeneity detection was performed using Cochran's Q-test. Additionally, leave-one-out analysis was carried out to determine if any single SNP drove the causal association signals. Finally, we conducted a reverse MR to evaluate the potential of reverse causation. Results We discovered that 6 gut microbial taxa and 16 immune cells were causally related to MT (p < 0.05). Among them, 2 bacterial features and 9 immunophenotypes retained a strong causal relationship with lower risk of MT: genus. Lachnospiraceae NK4A136group (OR: 0.962, 95% CI: 0.940-0.987, p = 0.030), genus. RuminococcaceaeUCG011 (OR: 0.960, 95% CI: 0.946-0.976, p = 0.003), BAFF-R on B cell (OR: 0.972, 95% CI: 0.947-0.998, p = 0.013). Furthermore, 4 bacterial features and 7 immunophenotypes were identified to be significantly associated with MT risk: genus. Flavonifractor (OR: 1.044, 95% CI: 1.017-1.069, p = 0.029), genus. Prevotella9 (OR: 1.054, 95% CI: 1.020-1.090, p = 0.037), B cell % CD3-lymphocyte (OR: 1.976, 95% CI: 1.027-1.129, p = 0.026). The Cochrane's Q test revealed no heterogeneity (p > 0.05). Furthermore, the MR-Egger and MR-PRESSO analyses reveal no instances of horizontal pleiotropy (p > 0.05). Besides, leave-one-out analysis confirmed the robustness of MR results. After adding BMI to the multivariate MR analysis, the gut microbial taxa and immune cells exposure-outcome effect were attenuated. Conclusion Our research confirm the potential link between gut microbiota and immune cells with MT, shedding light on the mechanism by which gut microbiota and immune cells may contribute to MT. These findings lay the groundwork for future investigations into targeted prevention strategies.
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Affiliation(s)
- Shuai Han
- Department of Anesthesiology, Northern Jiangsu People's Hospital, Clinical Medical School, Yangzhou University, Yangzhou, China
- Yangzhou University Medical College, Yangzhou, China
| | - Jiapei Gao
- Yangzhou University Medical College, Yangzhou, China
| | - Zi Wang
- Department of Anesthesiology, Northern Jiangsu People's Hospital, Clinical Medical School, Yangzhou University, Yangzhou, China
- Yangzhou University Medical College, Yangzhou, China
| | - Yinggang Xiao
- Department of Anesthesiology, Northern Jiangsu People's Hospital, Clinical Medical School, Yangzhou University, Yangzhou, China
- Yangzhou University Medical College, Yangzhou, China
| | - Yali Ge
- Department of Anesthesiology, Northern Jiangsu People's Hospital, Clinical Medical School, Yangzhou University, Yangzhou, China
- Yangzhou University Medical College, Yangzhou, China
| | - Yongxin Liang
- Department of Anesthesiology, Women's and Children's Hospital Affiliated to Qingdao University, Qingdao, China
| | - Ju Gao
- Department of Anesthesiology, Northern Jiangsu People's Hospital, Clinical Medical School, Yangzhou University, Yangzhou, China
- Yangzhou University Medical College, Yangzhou, China
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Misera A, Łoniewski I, Palma J, Kulaszyńska M, Czarnecka W, Kaczmarczyk M, Liśkiewicz P, Samochowiec J, Skonieczna-Żydecka K. Clinical significance of microbiota changes under the influence of psychotropic drugs. An updated narrative review. Front Microbiol 2023; 14:1125022. [PMID: 36937257 PMCID: PMC10014913 DOI: 10.3389/fmicb.2023.1125022] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/13/2023] [Indexed: 03/05/2023] Open
Abstract
Relationship between drugs and microbiota is bilateral. Proper composition thus function of microbiota is a key to some medications used in modern medicine. However, there is also the other side of the coin. Pharmacotherapeutic agents can modify the microbiota significantly, which consequently affects its function. A recently published study showed that nearly 25% of drugs administered to humans have antimicrobial effects. Multiple antidepressants are antimicrobials,. and antibiotics with proven antidepressant effects do exist. On the other hand, antibiotics (e.g., isoniaside, minocycline) confer mental phenotype changes, and adverse effects caused by some antibiotics include neurological and psychological symptoms which further supports the hypothesis that intestinal microbiota may affect the function of the central nervous system. Here we gathered comprehensively data on drugs used in psychiatry regarding their antimicrobial properties. We believe our data has strong implications for the treatment of psychiatric entities. Nevertheless the study of ours highlights the need for more well-designed trials aimed at analysis of gut microbiota function.
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Affiliation(s)
- Agata Misera
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Igor Łoniewski
- Department of Biochemical Science, Pomeranian Medical University in Szczecin, Szczecin, Poland
- Sanprobi sp. z o.o. sp.k., Szczecin, Poland
| | - Joanna Palma
- Department of Biochemical Science, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Monika Kulaszyńska
- Department of Biochemical Science, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Wiktoria Czarnecka
- Department of Biochemical Science, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | | | - Paweł Liśkiewicz
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Jerzy Samochowiec
- Department of Psychiatry, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Karolina Skonieczna-Żydecka
- Department of Biochemical Science, Pomeranian Medical University in Szczecin, Szczecin, Poland
- *Correspondence: Karolina Skonieczna-Żydecka,
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Rox K. Influence of tramadol on bacterial burden in the standard neutropenic thigh infection model. Sci Rep 2022; 12:19606. [PMID: 36380116 PMCID: PMC9666522 DOI: 10.1038/s41598-022-24111-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 11/10/2022] [Indexed: 11/18/2022] Open
Abstract
The neutropenic thigh infection model is one of the standard models in pharmacokinetic/ pharmacodynamic (PK/PD) characterization of novel antibacterials which are urgently needed due to the rise of antimicrobial resistance. The model enables to investigate PK/PD parameters crucial for translation of animal results towards humans. However, the neutropenic thigh infection model can result in moderate to severe discomfort of the animals, especially when high inocula are used. Tramadol has been proven to reduce pain effectively. This study investigates if tramadol influences the bacterial burden in the primary organ, the thighs, and organs affected by secondary seeding. Therefore, several strains of the ESKAPE pathogens, namely S. aureus, P. aeruginosa, K. pneumoniae, E. coli, A. baumannii and E. faecalis were examined. It was shown that tramadol did not influence the bacterial burden neither in thighs nor in organs affected by secondary seeding for the strains of E. faecalis, S. aureus, P. aeruginosa, K. pneumoniae and E.coli tested here, whereas secondary seeding seemed to be affected by tramadol for the tested strain of A. baumannii. Consequently, it was demonstrated that tramadol is an option to reduce discomfort in the untreated group for the strains of five out of the six tested ESKAPE pathogens and, thereby, contributes to the refinement of one of the standard PK/PD models.
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Affiliation(s)
- K. Rox
- grid.7490.a0000 0001 2238 295XDepartment of Chemical Biology, Helmholtz Centre for Infection Research (HZI), Inhoffenstraße 7, 38124 Braunschweig, Germany ,grid.452463.2German Center for Infection Research (DZIF), Partner Site Hannover-Braunschweig, 38124 Braunschweig, Germany
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Hassabou NF, Elseweidy MM. Histopathological changes in submandibular gland and dorsal tongue of experimental rats due to prolonged tramadol intake focusing on novel modulatory effect of 10-dehydrogingerdione. Arch Oral Biol 2021; 130:105223. [PMID: 34371226 DOI: 10.1016/j.archoralbio.2021.105223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/16/2021] [Accepted: 08/02/2021] [Indexed: 02/08/2023]
Abstract
OBJECTIVES This project aims to develop a framework to illustrate the degenerative effects induced by prolonged tramadol intake in salivary glands and tongue tissues. We strive in this work to investigate the probable role of 10-dehydrogingerdione (10-DHGD) in regeneration of these tissues. DESIGN Forty male albino rats were designated for the study and categorized into four groups. Group (1) received no drugs and served as normal control group. Group (2) received tramadol intra peritoneal (20 mg /kg) body weight daily for 45 days. Group (3) received freshly prepared 10-DHGD orally in a dose level (10 mg /kg). Group (4) received combination of tramadol and 10 DHGD for 45 days. Histological examination is that routine testing that was done in all studied subjects to demonstrate any cytological changes with hematoxylin and eosin (H&E) in the submandibular glands and dorsal tongue tissues along with histochemical investigation using periodic acid-Schiff (PAS) and immunohistochemical presentation of Caspase-3. RESULTS Submandibular salivary glands and dorsal tongue tissues showed degenerative changes in tramadol treated group while control and 10-DHGD groups presented with no cytological or morphological changes. Histochemical investigation revealed marked reduction in PAS staining reaction in tramadol group as compared to other studied groups. Regarding to immunoreactivity of caspase-3 when all groups were compared, the differences in mean values of area percentage were statistically significant. CONCLUSIONS Tramadol provoked oxidative damage and apoptosis in oral tissues, which significantly decreased by 10-DHGD intake as it may exert an ameliorative effect that help alleviating these degenerative effects.
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Affiliation(s)
- Nadia Fathy Hassabou
- Oral and Maxillofacial Histopathology Department, Faculty of Dentistry, October 6 University, Giza, Egypt.
| | - Mohamed M Elseweidy
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt.
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Opioid system influences gut-brain axis: Dysbiosis and related alterations. Pharmacol Res 2020; 159:104928. [PMID: 32504837 DOI: 10.1016/j.phrs.2020.104928] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/24/2020] [Accepted: 05/13/2020] [Indexed: 02/06/2023]
Abstract
Opioid drugs are widely used to treat chronic pain, but their misuse can lead to tolerance, dependence, and addiction and have created a significant public health problem. In addition, food-derived opioid peptides, known as exorphins, like gluten exorphins have been shown to have harmful effects in certain pathologies like celiac disease, for example. Several studies support the involvement of the opioid system in the development of disorders such as autism spectrum syndrome. Moreover, bidirectional communication between the intestine and brain has been shown to be altered in various neurodegenerative diseases including Alzheimer´s and Parkinson´s. The presence of opioid receptors in both the digestive tract and the central nervous system (CNS) suggests that opioid drugs and exorphins may modulate the gut-brain axis. Morphine, for example, has shown a dysbiotic effect on the bacterial microbiota in addition to inducing an increase in intestinal permeability facilitating bacterial translocation. Furthermore, certain components of bacteria can modify the expression of opioid receptors at the central level increasing sensitivity to pain. Strategies based on use of probiotics have resulted in improvements in symptoms of autism and Parkinson´s disease. In this manuscript, we review the role of the opioid system in disorders and CNS pathologies and the involvement of the gut-brain axis.
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Cussotto S, Clarke G, Dinan TG, Cryan JF. Psychotropics and the Microbiome: a Chamber of Secrets…. Psychopharmacology (Berl) 2019; 236:1411-1432. [PMID: 30806744 PMCID: PMC6598948 DOI: 10.1007/s00213-019-5185-8] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 01/30/2019] [Indexed: 02/07/2023]
Abstract
The human gut contains trillions of symbiotic bacteria that play a key role in programming different aspects of host physiology in health and disease. Psychotropic medications act on the central nervous system (CNS) and are used in the treatment of various psychiatric disorders. There is increasing emphasis on the bidirectional interaction between drugs and the gut microbiome. An expanding body of evidence supports the notion that microbes can metabolise drugs and vice versa drugs can modify the gut microbiota composition. In this review, we will first give a comprehensive introduction about this bidirectional interaction, then we will take into consideration different classes of psychotropics including antipsychotics, antidepressants, antianxiety drugs, anticonvulsants/mood stabilisers, opioid analgesics, drugs of abuse, alcohol, nicotine and xanthines. The varying effects of these widely used medications on microorganisms are becoming apparent from in vivo and in vitro studies. This has important implications for the future of psychopharmacology pipelines that will routinely need to consider the host microbiome during drug discovery and development.
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Affiliation(s)
- Sofia Cussotto
- APC Microbiome Ireland, University College Cork, Cork, Ireland ,Department of Anatomy and Neuroscience, University College Cork, Room 3.86, Western Gateway Building, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, Cork, Ireland ,Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Timothy G. Dinan
- APC Microbiome Ireland, University College Cork, Cork, Ireland ,Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - John F. Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland ,Department of Anatomy and Neuroscience, University College Cork, Room 3.86, Western Gateway Building, Cork, Ireland
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