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Pepoyan A, Mikayelyan M, Grigoryan H, Stepanyan L, Mirzabekyan S, Malkhasyan L, Harutyunyan N, Manvelyan A, Balayan M. Challenges for heat stress: Intestinal culturable bacteria of Lohmann Brown chickens. Res Vet Sci 2024; 172:105258. [PMID: 38615473 DOI: 10.1016/j.rvsc.2024.105258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/07/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
This study aimed to assess how heat stress, specifically within the range of 35-38 °C, affects the populations of culturable intestinal lactobacilli, enterococci, and Escherichia coli, as well as the expression of Heat Shock Proteins (HSP70), in Lohmann Brown chickens. It also explored the influence of the chickens' blood transferrin and ceruloplasmin genotypes on these responses. Thirty chickens underwent eight hours of heat stress, maintained at an average temperature of 37 °C and a relative humidity of 75-80%, with continuous access to food and water. Behavioral monitoring was conducted throughout to prevent excessive heat-related mortality. The Lohmann Brown chickens from the Yerevan "Arax" poultry farm were initially classified based on their blood transferrin and ceruloplasmin genotypes to investigate potential correlations between intestinal bacterial composition and variations in these polymorphisms. A significant correlation was found between heat stress and the abundance of culturable enterococci within the intestinal microbiota, regardless of chicken TfAB, TfBC, CpAB, CpCC and TfAB, TfBC, CpAB, CpCD genotypes. Heat stress led to nearly double the HSP70 levels in chicken blood, along with a reduction in the culturable enterococci population by at least 10,000-fold in the intestinal microbiota. These findings are significant for targeted management strategies to mitigate heat stress in chicken populations.
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Affiliation(s)
- A Pepoyan
- Division of food safety and biotechnology, Armenian National Agrarian University, Teryan 74, 0009 Yerevan, Armenia; International Association for Human and Animals Health Improvement, Yerevan, Armenia.
| | - M Mikayelyan
- Division of food safety and biotechnology, Armenian National Agrarian University, Teryan 74, 0009 Yerevan, Armenia
| | - H Grigoryan
- Division of food safety and biotechnology, Armenian National Agrarian University, Teryan 74, 0009 Yerevan, Armenia
| | - L Stepanyan
- Division of food safety and biotechnology, Armenian National Agrarian University, Teryan 74, 0009 Yerevan, Armenia
| | - S Mirzabekyan
- Division of food safety and biotechnology, Armenian National Agrarian University, Teryan 74, 0009 Yerevan, Armenia; International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - L Malkhasyan
- Division of food safety and biotechnology, Armenian National Agrarian University, Teryan 74, 0009 Yerevan, Armenia; International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - N Harutyunyan
- Division of food safety and biotechnology, Armenian National Agrarian University, Teryan 74, 0009 Yerevan, Armenia; International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - A Manvelyan
- Division of food safety and biotechnology, Armenian National Agrarian University, Teryan 74, 0009 Yerevan, Armenia; International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - M Balayan
- Division of food safety and biotechnology, Armenian National Agrarian University, Teryan 74, 0009 Yerevan, Armenia; International Association for Human and Animals Health Improvement, Yerevan, Armenia
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Pepoyan E, Marotta F, Manvelyan A, Galstyan A, Stepanyan L, Grigoryan H, Grigoryan L, Mikayelyan M, Balayan M, Harutyunyan N, Mirzabekyan S, Tsaturyan V, Torok T, Pepoyan A. Placebo-resistant gut bacteria: Akkermansia muciniphila spp. and Familial Mediterranean fever disease. Front Cell Infect Microbiol 2024; 14:1336752. [PMID: 38465231 PMCID: PMC10920240 DOI: 10.3389/fcimb.2024.1336752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 12/19/2023] [Indexed: 03/12/2024] Open
Abstract
Introduction Despite numerous investigations into the impact of drugs/probiotics on the gut microbiota composition in Familial Mediterranean Fever (FMF) patients, the question as to whether there exists a significant bacterial diversity(ies) independent of the placebo effect that can be reliably considered in clinical and nutritional trials remains unresolved. Methods This study represents the in augural analysis of the placebo's influence on the gut microbiota of both healthy individuals and FMF afflicted men, utilizing previously collected data from PhyloChip™ DNA microarray experiments. A total of 15 healthy and 15 FMF male volunteers, aged 18 to 50, participated in this partially randomized placebo trial, which is accessible through the GEO Series accession number GSE111835. Results and Discussion Key findings from current investigations include i. the anticipated divergence in gut bacteria resistance to placebo between healthy and FMF individuals, ii. the minor impact of placebo on gut bacterial diversities in healthy individuals, with Enterobacteriaceae diversities identified as placebo-resistant among "healthy" gut bacteria, and iii. the comprehensive influence of placebo on all bacterial phyla in the gut microbiome of FMF patients, extending to nearly all bacterial genera, except for the resilience of gut Akkermansia muciniphila spp. to placebo in FMF patients. This study underscores the susceptibility of Faecalibacterium, Blautia, and Clostridium genera to placebo. Consequently, this investigation holds significance for the proper design of placebo-controlled trials and establishes a foundation for further exploration of the gut-brain axis. Furthermore, it contributes valuable insights to discussions regarding proposals for probiotic therapies, particularly focusing on Faecalibacterium spp., Blautia spp., and Clostridium spp.
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Affiliation(s)
- Elya Pepoyan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
- Faculty of Military Medicine, Yerevan State Medical University, Yerevan, Armenia
| | | | - Anahit Manvelyan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - Artak Galstyan
- Faculty of Military Medicine, Yerevan State Medical University, Yerevan, Armenia
| | - Lena Stepanyan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - Hasmik Grigoryan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - Liana Grigoryan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
| | - Mikayel Mikayelyan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - Marine Balayan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - Natalya Harutyunyan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - Susanna Mirzabekyan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
| | - Vardan Tsaturyan
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
- Faculty of Military Medicine, Yerevan State Medical University, Yerevan, Armenia
| | - Tamas Torok
- Lawrence Berkeley National Laboratory, Berkeley, CA, United States
| | - Astghik Pepoyan
- Food Safety and Biotechnology Department, Scientific Research Institute of Food Science and Biotechnology, Armenian National Agrarian University, Yerevan, Armenia
- International Association for Human and Animals Health Improvement, Yerevan, Armenia
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Mirzabekyan S, Harutyunyan N, Manvelyan A, Malkhasyan L, Balayan M, Miralimova S, Chikindas ML, Chistyakov V, Pepoyan A. Fish Probiotics: Cell Surface Properties of Fish Intestinal Lactobacilli and Escherichia coli. Microorganisms 2023; 11:microorganisms11030595. [PMID: 36985169 PMCID: PMC10052099 DOI: 10.3390/microorganisms11030595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/03/2023] Open
Abstract
The properties of intestinal bacteria/probiotics, such as cell surface hydrophobicity (CSH), auto-aggregation, and biofilm formation ability, play an important role in shaping the relationship between the bacteria and the host. The current study aimed to investigate the cell surface properties of fish intestinal bacteria and probiotics. Microbial adhesion to hydrocarbons was tested according to Kos and coauthors. The aggregation abilities of the investigated strains were studied as described by Collado and coauthors. The ability of bacterial isolates to form a biofilm was determined by performing a qualitative analysis using crystal violet staining based on the attachment of bacteria to polystyrene. These studies prove that bacterial cell surface hydrophobicity (CSH) is associated with the growth medium, and the effect of the growth medium on CSH is species-specific and likely also strain-specific. Isolates of intestinal lactobacilli from fish (Salmo ischchan) differed from isolates of non-fish/shrimp origin in the relationship between auto-aggregation and biofilm formation. Average CSH levels for fish lactobacilli and E. coli might were lower compared to those of non-fish origin, which may affect the efficiency of non-fish probiotics use in fisheries due to the peculiarities of the hosts’ aquatic lifestyles.
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Affiliation(s)
- Susanna Mirzabekyan
- Division of Food Safety and Biotechnology, Armenian National Agrarian University, Yerevan 0009, Armenia
| | - Natalya Harutyunyan
- Division of Food Safety and Biotechnology, Armenian National Agrarian University, Yerevan 0009, Armenia
| | - Anahit Manvelyan
- Division of Food Safety and Biotechnology, Armenian National Agrarian University, Yerevan 0009, Armenia
| | - Lilit Malkhasyan
- Division of Food Safety and Biotechnology, Armenian National Agrarian University, Yerevan 0009, Armenia
| | - Marine Balayan
- Division of Food Safety and Biotechnology, Armenian National Agrarian University, Yerevan 0009, Armenia
| | - Shakhlo Miralimova
- Institute of Microbiology, Academy of Sciences of the Republic of Uzbekistan, Tashkent 100125, Uzbekistan
| | - Michael L. Chikindas
- Health Promoting Natural Laboratory, Rutgers State University, New Brunswick, NJ 08901, USA
- Center for Agrobiotechnology, Don State Technical University, 344002 Rostov-on-Don, Russia
- Department of General Hygiene, I.M. Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Str., 19/1, 119146 Moscow, Russia
| | - Vladimir Chistyakov
- Center for Agrobiotechnology, Don State Technical University, 344002 Rostov-on-Don, Russia
- D.I. Ivanovsky Academy of Biology and Biotechnology, Southern Federal University, Prosp. Stachky 194/1, 344090 Rostov-on-Don, Russia
| | - Astghik Pepoyan
- Division of Food Safety and Biotechnology, Armenian National Agrarian University, Yerevan 0009, Armenia
- The International Scientific-Educational Center of the National Academy of Sciences of the Republic of Armenia, Yerevan 0019, Armenia
- Correspondence: or or ; Tel.: +374-91-432490
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Tsaturyan V, Kushugulova A, Mirzabekyan S, Sidamonidze K, Tsereteli D, Torok T, Pepoyan A. Promising Indicators in Probiotic-recommendations in COVID-19 and its Accompanying Diseases. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.7989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Scientific data suggests the possible beneficial role of probiotics in treatments for COVID-19, but the species/strains-specificity and disease-specificity of probiotics need high attention in choosing the appropriate probiotic in diseases, in particularly in the COVID-19. We hope this review will raise awareness of the COVID-19 probiotic recommendations, highlighting the latest scientific information about virus/hydrogen peroxide/probiotics and the importance of finding out of a specific “criterion” for the probiotics’ recommendation in this disease.
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Gasparyan G, Balayan M, Grigoryan A, Hakopyan A, Manvelyan A, Mirzabekyan S, Trchounian A, Pepoyan A. Growth peculiarities of commensal Escherichia coli isolates from the gut microflora in Crohn’s disease patients. Biophysics (Nagoya-shi) 2013. [DOI: 10.1134/s0006350913040064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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