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Makioka-Itaya Y, Inoue R, Tsukahara T. Dysfunction of the Murine Liver with Aging and Its Improvement with the Continuous Consumption of Enterococcus faecalis EC-12. Nutrients 2024; 16:2031. [PMID: 38999780 PMCID: PMC11243158 DOI: 10.3390/nu16132031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
Chronic inflammation is involved in the development of age-related diseases. Given its persistence, controlling chronic inflammation is essential for preventing age-related diseases. In this study, we investigated the effects of Enterococcus faecalis EC-12 (EC-12), which has immunomodulatory and antioxidant effects, on liver gene expression and aging phenomena in mice. Short-term EC-12 administration stimulated the expression of genes involved in lipid synthesis and metabolism in the liver. Furthermore, long-term EC-12 administration from 10 weeks to 1.5 years of age resulted in significant increases in blood interleukin (IL)-6 and IL-10 concentrations (both p < 0.05) and a significant decrease in the monocyte chemotactic protein-1 concentration (p < 0.05). These results indicated pathologic improvement, such as suppression of fat degeneration in the liver. These results suggest that continuous EC-12 intake from a young age can suppress liver function abnormalities, which is one of the aging phenomena in old age, and contribute to health in old age.
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Affiliation(s)
| | - Ryo Inoue
- Laboratory of Animal Science, Department of Applied Biological Sciences, Setsunan University, Hirakata 573-0101, Japan;
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Tian S, Liao X, Chen S, Wu Y, Chen M. Genetic association of the gut microbiota with epigenetic clocks mediated by inflammatory cytokines: a Mendelian randomization analysis. Front Immunol 2024; 15:1339722. [PMID: 38903525 PMCID: PMC11186987 DOI: 10.3389/fimmu.2024.1339722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 05/24/2024] [Indexed: 06/22/2024] Open
Abstract
Background A new aging biomarker epigenetic clock has been developed. There exists a close link between aging and gut microbiota, which may be mediated by inflammatory cytokines. However, the relationship between the epigenetic clock, gut microbiota, and the mediating substances is unclear. Methods Two large genome-wide association meta-analyses were analyzed by two-sample Mendelian randomization. The results between gut microbiota and epigenetic clock were investigated using the four methods (Inverse variance weighted, MR-Egger, weighted median, MR-PRESSO). Genetic correlation was measured by Linked disequilibrium score regression (LDSC). The correctness of the study direction was checked by the Steiger test. Cochran's Q statistic and MR-Egger intercept were used as sensitivity analyses of the study. The two-step method was used to examine the mediating role of inflammatory cytokines. We use the Benjamini-Hochberg correction method to correct the P value. Results After FDR correction, multiple bacterial genera were significantly or suggestively associated with four epigenetic clocks (GrimAge, HannumAge, IEAA, PhenoAge). And we detected several inflammatory factors acting as mediators of gut microbiota and epigenetic clocks. Conclusion This study provides genetic evidence for a positive and negative link between gut microbiota and aging risk. We hope that by elucidating the genetic relationship and potential mechanisms between aging and gut microbiota, we will provide new avenues for continuing aging-related research and treatment.
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Affiliation(s)
- Siyu Tian
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine (TCM), Chengdu, China
| | - Xingyu Liao
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine (TCM), Chengdu, China
| | - Siqi Chen
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine (TCM), Chengdu, China
| | - Yu Wu
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine (TCM), Chengdu, China
| | - Min Chen
- Department of Colorectal Surgery, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Liu R. A promising area of research in medicine: recent advances in properties and applications of Lactobacillus-derived exosomes. Front Microbiol 2024; 15:1266510. [PMID: 38686107 PMCID: PMC11056577 DOI: 10.3389/fmicb.2024.1266510] [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: 07/25/2023] [Accepted: 03/22/2024] [Indexed: 05/02/2024] Open
Abstract
Lactobacillus-derived exosomes, small extracellular vesicles released by bacteria, have emerged as a promising area of research in recent years. These exosomes possess a unique structural and functional diversity that allows them to regulate the immune response and promote gut health. The isolation and purification of these exosomes are crucial for their effective use as a therapeutic agent. Several isolation and purification methods have been developed, including differential ultracentrifugation, density gradient centrifugation, and size-exclusion chromatography. Lactobacillus-derived exosomes have been demonstrated to have therapeutic potential in various diseases, such as inflammatory bowel disease, liver disease, and neurological disorders. Moreover, they have been shown to serve as effective carriers for drug delivery. Genetic engineering of these exosomes has also shown promise in enhancing their therapeutic potential. Overall, Lactobacillus-derived exosomes represent a promising area of research for the development of novel therapeutics for immunomodulation, gut health, and drug delivery.
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Affiliation(s)
- Rui Liu
- School of Food Engineering, Ludong University, Yantai, Shandong, China
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Lee CC, Liao YC, Lee MC, Lin KJ, Hsu HY, Chiou SY, Young SL, Lin JS, Huang CC, Watanabe K. Lactobacillus plantarum TWK10 Attenuates Aging-Associated Muscle Weakness, Bone Loss, and Cognitive Impairment by Modulating the Gut Microbiome in Mice. Front Nutr 2021; 8:708096. [PMID: 34722603 PMCID: PMC8548577 DOI: 10.3389/fnut.2021.708096] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 09/13/2021] [Indexed: 12/23/2022] Open
Abstract
In humans, aging is characterized by the progressive decline in biological, physiological, and psychological functions, and is a major risk factor in the development of chronic diseases. Therefore, the development of strategies aimed at attenuating aging-related disorders and promoting healthy aging is critical. In a previous study, we have demonstrated that Lactobacillus plantarum TWK10 (TWK10), a probiotic strain isolated from Taiwanese pickled cabbage, improved muscle strength, exercise endurance, and overall body composition in healthy humans. In this study, the effect of TWK10 on the progression of age-related impairments was investigated in mice. We found that TWK10 not only enhanced muscle strength in young mice, but also prevented the aging-related loss of muscle strength in aged mice, which was accompanied by elevated muscle glycogen levels. Furthermore, TWK10 attenuated the aging-associated decline in learning and memory abilities, as well as bone mass. Further analyses of gut microbiota using next-generation sequencing (NGS) of the 16S rRNA gene showed that the pattern of gut microbial composition was clearly altered following 8 weeks of TWK10 administration. TWK10-treated mice also experienced an increase in short-chain fatty acid (SCFA)-producing bacteria and higher overall levels of gut SCFA. Furthermore, TWK10 administration to some extent reversed the aging-associated accumulation of pathogenic bacterial taxa. In conclusion, TWK10 could be viewed as a potential therapeutic agent that attenuates aging-related disorders and provides health benefits by modulating the imbalance of gut microbiota.
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Affiliation(s)
- Chia-Chia Lee
- Culture Collection & Research Institute, SYNBIO TECH INC., Kaohsiung, Taiwan
| | - Yi-Chu Liao
- Culture Collection & Research Institute, SYNBIO TECH INC., Kaohsiung, Taiwan.,Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Mon-Chien Lee
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan, Taiwan
| | - Kun-Ju Lin
- Department of Nuclear Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.,Department of Medical Imaging and Radiological Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Han-Yin Hsu
- Culture Collection & Research Institute, SYNBIO TECH INC., Kaohsiung, Taiwan
| | - Shiou-Yun Chiou
- Culture Collection & Research Institute, SYNBIO TECH INC., Kaohsiung, Taiwan
| | - San-Land Young
- Culture Collection & Research Institute, SYNBIO TECH INC., Kaohsiung, Taiwan
| | - Jin-Seng Lin
- Culture Collection & Research Institute, SYNBIO TECH INC., Kaohsiung, Taiwan
| | - Chi-Chang Huang
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan, Taiwan
| | - Koichi Watanabe
- Culture Collection & Research Institute, SYNBIO TECH INC., Kaohsiung, Taiwan.,Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan.,Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan
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Liu C, Tseng YP, Chan LP, Liang CH. The potential of Streptococcus thermophiles (TCI633) in the anti-aging. J Cosmet Dermatol 2021; 21:2635-2647. [PMID: 34587358 DOI: 10.1111/jocd.14445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/19/2021] [Accepted: 08/27/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Streptococcus thermophilus (TCI633) is a probiotic that has been newly isolated from human breast milk, and it can produce hyaluronic acid (HA) when colonizing the gastrointestinal (GI) tract of rodents and humans. A recent study has the established that TCI633 can alleviate synovial tissue inflammation and has potential to mitigate the progression of osteoarthritis. OBJECTIVE TCI633 has not been available for use in skincare and this preliminary clinical study will assess its improvement of the skin. METHODS In this study, DNA protection, Hyaluronidase assay, cell viability, and collagen synthesis on human fibroblasts of TCI633 were assessed. Subjects were enrolled in this clinical study and randomly assigned to the TCI633 or placebo group. Each subject was informed to intake two tablets daily for 8 weeks. Each subject was required to undergo skin condition inspection at weeks 0, 4, and 8 and hematology tests to monitor HA, superoxide dismutase (SOD) and catalase levels, and kidney and liver function at weeks 0 and 8. RESULTS The effects of TCI633 supplementation, including the promotion of skin cell proliferation, the increase of their collagen content, their protection against DNA damage, and the inhibition of hyaluronidase activities, are investigated. Subjects were recruited for an 8-week long clinical trial to confirm the efficacy of TCI633 in improving the serum biochemical HA, SOD and catalase levels, and anti-skin age markers. CONCLUSIONS This work provides an alternative approach to improving health, indicating the potential of TCI633 supplementation to delay the aging of skin and improve its condition.
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Affiliation(s)
- Cheng Liu
- Department of Health and Beauty, Kaohsiung, Taiwan.,Department of Optometry, Kaohsiung, Taiwan.,Department of Dental Technology, Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan
| | - Ya-Ping Tseng
- Institute of Basic Medical Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Leong-Perng Chan
- Department of Otorhinolaryngology-Head and Neck Surgery, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Hua Liang
- Department of Cosmetic Science and Institute of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
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The Effects of Dietary Supplementation of Lactococcus lactis Strain Plasma on Skin Microbiome and Skin Conditions in Healthy Subjects-A Randomized, Double-Blind, Placebo-Controlled Trial. Microorganisms 2021; 9:microorganisms9030563. [PMID: 33803200 PMCID: PMC8000884 DOI: 10.3390/microorganisms9030563] [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: 02/15/2021] [Revised: 03/03/2021] [Accepted: 03/05/2021] [Indexed: 01/26/2023] Open
Abstract
(1) Background: Lactococcus lactis strain Plasma (LC-Plasma) is a unique strain which directly activates plasmacytoid dendritic cells, resulting in the prevention against broad spectrum of viral infection. Additionally, we found that LC-Plasma intake stimulated skin immunity and prevents Staphylococcus aureus epicutaneous infection. The aim of this study was to investigate the effect of LC-Plasma dietary supplementation on skin microbiome, gene expression in the skin, and skin conditions in healthy subjects. (2) Method: A randomized, double-blind, placebo-controlled, parallel-group trial was conducted. Seventy healthy volunteers were enrolled and assigned into two groups receiving either placebo or LC-Plasma capsules (approximately 1 × 1011 cells/day) for 8 weeks. The skin microbiome was analyzed by NGS and qPCR. Gene expression was analyzed by qPCR and skin conditions were diagnosed by dermatologists before and after intervention. (3) Result: LC-Plasma supplementation prevented the decrease of Staphylococcus epidermidis and Staphylococcus pasteuri and overgrowth of Propionibacterium acnes. In addition, LC-Plasma supplementation suggested to increase the expression of antimicrobial peptide genes but not tight junction genes. Furthermore, the clinical scores of skin conditions were ameliorated by LC-Plasma supplementation. (4) Conclusions: Our findings provided the insights that the dietary supplementation of LC-Plasma might have stabilizing effects on seasonal change of skin microbiome and skin conditions in healthy subjects.
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Tsuji R, Fujii T, Nakamura Y, Yazawa K, Kanauchi O. Staphylococcus aureus Epicutaneous Infection Is Suppressed by Lactococcus lactis Strain Plasma via Interleukin 17A Elicitation. J Infect Dis 2020; 220:892-901. [PMID: 31107940 DOI: 10.1093/infdis/jiz204] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 04/23/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Lactococcus lactis strain Plasma (LC-Plasma) was revealed to stimulate plasmacytoid dendritic cells and induce antiviral immunity in vitro and in vivo. In this study, we assessed the effects of LC-Plasma on skin immunity. METHODS To evaluate the effect of LC-Plasma on skin immunity and Staphylococcus aureus epicutaneous infection, lymphocyte activities in skin-draining lymph nodes (SLNs) and gene expression in skin were analyzed after 2 weeks of oral administration of LC-Plasma. To evaluate the mechanisms of interleukin 17A production, SLN lymphocytes were cultured with or without LC-Plasma, and the interleukin 17A concentrations in supernatants were measured. RESULTS Oral administration of LC-Plasma activated plasma dendritic cells in SLNs, augmented skin homeostasis, and elicited suppression of Staphylococcus aureus, Staphylococcus epidermidis, and Propionibacterium acnes proliferation. In addition, significant suppression of the S. aureus burden and reduced skin inflammation were observed following oral administration of LC-Plasma. Furthermore, a subsequent in vitro study revealed that LC-Plasma could elicit interleukin 17A production from CD8+ T cells and that its induction mechanism depended on the Toll-like receptor 9 signaling pathway, with type I interferon partially involved. CONCLUSIONS Our results suggest that LC-Plasma oral administration enhances skin homeostasis via plasma dendritic cell activation in SLNs, resulting in suppression of S. aureus epicutaneous infection and skin inflammation.
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Affiliation(s)
- Ryohei Tsuji
- Research Laboratories for Health Science and Food Technologies, Kirin, Kanagawa
| | - Toshio Fujii
- Research Laboratories for Health Science and Food Technologies, Kirin, Kanagawa
| | - Yuumi Nakamura
- Department of Dermatology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Kamiyu Yazawa
- Research Laboratories for Health Science and Food Technologies, Kirin, Kanagawa
| | - Osamu Kanauchi
- Research Laboratories for Health Science and Food Technologies, Kirin, Kanagawa
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Cao C, Xiao Z, Wu Y, Ge C. Diet and Skin Aging-From the Perspective of Food Nutrition. Nutrients 2020; 12:E870. [PMID: 32213934 PMCID: PMC7146365 DOI: 10.3390/nu12030870] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 02/07/2023] Open
Abstract
We regularly face primary challenges in deciding what to eat to maintain young and healthy skin, defining a healthy diet and the role of diet in aging. The topic that currently attracts maximum attention is ways to maintain healthy skin and delay skin aging. Skin is the primary barrier that protects the body from external aggressions. Skin aging is a complex biological process, categorized as chronological aging and photo-aging, and is affected by internal factors and external factors. With the rapid breakthrough of medicine in prolonging human life and the rapid deterioration of environmental conditions, it has become urgent to find safe and effective methods to treat skin aging. For diet, as the main way for the body to obtain energy and nutrients, people have gradually realized its importance to the skin. Therefore, in this review, we discuss the skin structure, aging manifestations, and possible mechanisms, summarize the research progress, challenges, possible directions of diet management, and effects of foodborne antioxidants on skin aging from the perspective of food and nutrition.
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Affiliation(s)
- Changwei Cao
- Livestock Product Processing Engineering and Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China; (C.C.); (Z.X.)
- College of Food Science, Sichuan Agricultural University, Ya’ an, Sichuan 625014, China;
| | - Zhichao Xiao
- Livestock Product Processing Engineering and Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China; (C.C.); (Z.X.)
- College of Food Science and technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Yinglong Wu
- College of Food Science, Sichuan Agricultural University, Ya’ an, Sichuan 625014, China;
| | - Changrong Ge
- Livestock Product Processing Engineering and Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China; (C.C.); (Z.X.)
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