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Cohen H, Matar MA, Todder D, Cohen C, Zohar J, Hawlena H, Abramsky Z. Sounds of danger and post-traumatic stress responses in wild rodents: ecological validity of a translational model of post-traumatic stress disorder. Mol Psychiatry 2023; 28:4719-4728. [PMID: 37674017 PMCID: PMC10914612 DOI: 10.1038/s41380-023-02240-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 08/17/2023] [Accepted: 08/24/2023] [Indexed: 09/08/2023]
Abstract
In the wild, animals face a highly variable world full of predators. Most predator attacks are unsuccessful, and the prey survives. According to the conventional perspective, the fear responses elicited by predators are acute and transient in nature. However, the long-term, non-lethal effects of predator exposure on prey behavioral stress sequelae, such as anxiety and post-traumatic symptoms, remain poorly understood. Most experiments on animal models of anxiety-related behavior or post-traumatic stress disorder have been carried out using commercial strains of rats and mice. A fundamental question is whether laboratory rodents appropriately express the behavioral responses of wild species in their natural environment; in other words, whether behavioral responses to stress observed in the laboratory can be generalized to natural behavior. To further elucidate the relative contributions of the natural selection pressures influences, this study investigated the bio-behavioral and morphological effects of auditory predator cues (owl territorial calls) in males and females of three wild rodent species in a laboratory set-up: Acomys cahirinus; Gerbillus henleyi; and Gerbillus gerbillus. Our results indicate that owl territorial calls elicited not only "fight or flight" behavioral responses but caused PTSD-like behavioral responses in wild rodents that have never encountered owls in nature and could cause, in some individuals, enduring physiological and morphological responses that parallel those seen in laboratory rodents or traumatized people. In all rodent species, the PTSD phenotype was characterized by a blunting of fecal cortisol metabolite response early after exposure and by a lower hypothalamic orexin-A level and lower total dendritic length and number in the dentate gyrus granule cells eight days after predator exposure. Phenotypically, this refers to a significant functional impairment that could affect reproduction and survival and thus fitness and population dynamics.
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Affiliation(s)
- Hagit Cohen
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Israel & Ministry of Health, Anxiety and Stress Research Unit, Beer-Sheva Mental Health Center, Beer-Sheva, Israel.
- Department of Psychology, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Michael A Matar
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Israel & Ministry of Health, Anxiety and Stress Research Unit, Beer-Sheva Mental Health Center, Beer-Sheva, Israel
| | - Doron Todder
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Israel & Ministry of Health, Anxiety and Stress Research Unit, Beer-Sheva Mental Health Center, Beer-Sheva, Israel
| | - Carmit Cohen
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Israel & Ministry of Health, Anxiety and Stress Research Unit, Beer-Sheva Mental Health Center, Beer-Sheva, Israel
| | - Joseph Zohar
- Post-Trauma Center, Sheba Medical Center, Tel Aviv University, Tel Aviv, 52621, Israel
| | - Hadas Hawlena
- Mitrani Department of Desert Ecology, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion Israel, Sde Boker, 8499000, Israel
| | - Zvika Abramsky
- Department of Life Sciences and Ramon Science Center, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
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Bellahreche Z, Dahmani Y. 20-Hydroxyecdysone bioavailability and pharmacokinetics in Gerbillus tarabuli, a gerbil model for metabolic syndrome studies. Steroids 2023; 198:109262. [PMID: 37355000 DOI: 10.1016/j.steroids.2023.109262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 06/26/2023]
Abstract
Phytoecdysteroids are active natural compounds that have demonstrated many beneficial pharmacological effects on mammals, including Humans. 20-Hydroxyecdysone (20E) is the major phytoecdysteroid present in plants, and gerbils are particularly good responders to the addition of 20E to their diet. We have examined the oral bioavailability of 20E in the desert gerbil, Gerbillus tarabuli. 20E (5 and 50 mg.kg-1 body weight) was administered to gerbils by intra-peritoneal injection and oral gavage, respectively. Plasma samples were collected over 8 h and analyzed by HPLC-MS/MS to determine the 20E concentrations. The calculated oral bioavailability of 20E is approx. 12%, with a half-life of 30.6 and 33 min after per os administration or intra-peritoneal injection, respectively. This bioavailabilitty is much higher than that observed in laboratory rodents (ca. 1%). It is proposed that this unexpectedly high oral bioavailability of 20E in gerbils contributes to its high efficacy in this animal.
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Affiliation(s)
- Zineb Bellahreche
- LBPO/Nutrition & Metabolism, Department of Biology and Physiology of Organisms, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene (USTHB), BP 32, El Alia, Bab Ezzouar 16111, Algiers, Algeria.
| | - Yasmina Dahmani
- LBPO/Nutrition & Metabolism, Department of Biology and Physiology of Organisms, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene (USTHB), BP 32, El Alia, Bab Ezzouar 16111, Algiers, Algeria
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Jia L, Jian L, Shi J, Manshu Z, Yajie J, Yuhong W. Protective effects of Zuogui Jiangtang Jieyu Formula on hippocampal neurons in rats of diabetes complicated with depression via the TRP/KYN metabolic pathway. DIGITAL CHINESE MEDICINE 2022. [DOI: 10.1016/j.dcmed.2022.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Baev AY, Charishnikova OS, Khasanov FA, Nebesnaya KS, Makhmudov AR, Rakhmedova MT, Khushbaktova ZA, Syrov VN, Levitskaya YV. Ecdysterone prevents negative effect of acute immobilization stress on energy metabolism of rat liver mitochondria. J Steroid Biochem Mol Biol 2022; 219:106066. [PMID: 35104603 DOI: 10.1016/j.jsbmb.2022.106066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/06/2022] [Accepted: 01/28/2022] [Indexed: 11/16/2022]
Abstract
Ecdysterone is a naturally occurring steroid hormone, which presents in arthropods and in a number of plants as an insect defence tool. There are many studies showing that application of ecdysterone can alter mitochondrial functions of mammalian cells, however it is not clear whether its effects are direct or mediated by activation of other cellular processes. In our study, we have shown how ecdysterone acts at the mitochondrial level in normal conditions and in certain pathology. We have demonstrated that application of immobilization stress to male rats causes uncoupling of mitochondrial oxidative phosphorylation, the preliminary application of ecdysterone prevents negative effect of immobilization stress on mitochondria. In-vitro experiments with isolated mitochondria have shown that ecdysterone can increase mitochondrial coupling and hyperpolarise mitochondria but without a noticeable effect on ADP/O ratio. Molecular docking experiments revealed that ecdysterone has high binding energy with mitochondrial FOF1 ATP synthase, but further biochemical analysis have not revealed either stimulatory or inhibitory effect of ecdysterone on FOF1 ATPase activity of the enzyme. Thus, ecdysterone can directly affect mitochondrial bioenergetics, though we assume that its preventive effect on mitochondria during immobilization stress is also coupled with the activation of some other cellular processes.
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Affiliation(s)
- Artyom Y Baev
- Laboratory of Experimental Biophysics, Centre for Advanced Technologies, Tashkent, Uzbekistan; Department of Biophysics, Faculty of Biology, National University of Uzbekistan, Tashkent, Uzbekistan.
| | - Oksana S Charishnikova
- Laboratory of Experimental Biophysics, Centre for Advanced Technologies, Tashkent, Uzbekistan
| | - Feruzbek A Khasanov
- Laboratory of Experimental Biophysics, Centre for Advanced Technologies, Tashkent, Uzbekistan; Department of Biochemistry, Faculty of Biology, National University of Uzbekistan, Tashkent, Uzbekistan
| | - Kamila S Nebesnaya
- Laboratory of Experimental Biophysics, Centre for Advanced Technologies, Tashkent, Uzbekistan; Department of Biophysics, Faculty of Biology, National University of Uzbekistan, Tashkent, Uzbekistan
| | - Albert R Makhmudov
- Laboratory of Experimental Biophysics, Centre for Advanced Technologies, Tashkent, Uzbekistan; Faculty of Chemistry, National University of Uzbekistan, Tashkent, Uzbekistan
| | - Mannona T Rakhmedova
- Laboratory of Experimental Biophysics, Centre for Advanced Technologies, Tashkent, Uzbekistan
| | - Zainab A Khushbaktova
- S. Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
| | - Vladimir N Syrov
- S. Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
| | - Yuliya V Levitskaya
- Laboratory of Experimental Biophysics, Centre for Advanced Technologies, Tashkent, Uzbekistan; Department of Biophysics, Faculty of Biology, National University of Uzbekistan, Tashkent, Uzbekistan.
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Therapeutic Effects of High-Intensity Interval Training Exercise Alone and Its Combination with Ecdysterone Against Amyloid Beta-Induced Rat Model of Alzheimer's Disease: A Behavioral, Biochemical, and Histological Study. Neurochem Res 2022; 47:2090-2108. [PMID: 35484426 DOI: 10.1007/s11064-022-03603-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/18/2022] [Accepted: 04/08/2022] [Indexed: 12/15/2022]
Abstract
Hippocampal oxidative stress has a vital role in the pathophysiology of Alzheimer's disease (AD)-associated behavioral deficits. Ecdysterone (Ecdy), a natural product and primary steroid hormone, exhibits anti-oxidative and neuroprotective effects. High-intensity interval training (HIIT) has emerged as an effective method for improving physiological brain functions. The present study was designed to investigate the comparative effects of separate and combined HIIT and Ecdy treatment on behavioral functions, hippocampal oxidative status, histological changes in an amyloid-beta (Aβ)-induced rat model of AD. Adult male rats were treated simultaneously with HIIT exercise and Ecdy (10 mg/kg/day; P.O.), starting ten days after Aβ-injection, and they continued for eight consecutive weeks. At the end of the treatment course, the behavioral functions of the rats were assessed by commonly-used behavioral paradigms. Subsequently, brain samples were collected for histological analysis and hippocampus samples were collected for biochemical analysis. Results illustrated that Aβ injection impaired learning and memory performances in both novel object recognition and Barnes maze tests, reduced exploratory/locomotor activities in open field test, enhanced anxiety-like behavior in elevated plus-maze (P < 0.05). These behavioral deficits accompanied hippocampal oxidative stress (decreased total antioxidant capacity content and glutathione peroxidase enzyme activity, increased total oxidant status and malondialdehyde level) and neuronal loss in the cerebral cortex and hippocampus in H&E staining (P < 0.05). HIIT and Ecdy improved anxiety-like behavior, attenuated total oxidant status and malondialdehyde, and prevented the neuronal loss (P < 0.05). However, their combination resulted in a more complete and powerful improvement in all the above-mentioned Aβ-related deficits (P < 0.05). Overall, these data provide evidence that a combination of HIIT and Ecdy treatment improves Aβ-induced behavioral deficits, possibly through ameliorating hippocampal oxidative status and preventing neuronal loss.
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Agoun H, Semiane N, Mallek A, Bellahreche Z, Hammadi S, Madjerab M, Abdlalli M, Khalkhal A, Dahmani Y. High-carbohydrate diet-induced metabolic disorders in Gerbillus tarabuli (a new model of non-alcoholic fatty-liver disease). Protective effects of 20-hydroxyecdysone. Arch Physiol Biochem 2021; 127:127-135. [PMID: 31190566 DOI: 10.1080/13813455.2019.1621350] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The aim of our study was to reveal the effects of long-term consumption of a high-carbohydrate diet (HCD) on metabolic dysfunctions and histopathological liver alterations in Gerbillus tarabuli, as well as to assess the preventive effects of 20-hydroxyecdysone (20E) in the same animals. Contrary to control diet, HCD induces several metabolic disorders including increased adiposity, dyslipidemia, ectopic fat deposition in the liver, associated with higher levels of plasma AST and ALT. These gerbils showed enhanced oxidative stress with liver damages characteristic of steatohepatitis development. By contrast, adding 20E to HCD resulted in a dose-dependent reduction of all changes induced by HCD. In addition, the hepatoprotective effect of 20E was demonstrated by decreased plasma concentrations of AST, ALT and of hepatic malondialdehyde. Our results suggest that G. tarabuli represents a good model to study diet-induced metabolic disorders and hepatic dysfunctions. Moreover, they demonstrate the efficacy of 20E treatment to counteract the damaging effects of HCD.
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Affiliation(s)
- Hadjer Agoun
- LBPO/Nutrition & Metabolism, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, Algiers, Algeria
| | - Nesrine Semiane
- LBPO/Nutrition & Metabolism, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, Algiers, Algeria
| | - Aicha Mallek
- LBPO/Nutrition & Metabolism, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, Algiers, Algeria
| | - Zineb Bellahreche
- LBPO/Nutrition & Metabolism, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, Algiers, Algeria
| | - Soumia Hammadi
- LBPO/Nutrition & Metabolism, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, Algiers, Algeria
| | - Maha Madjerab
- LBPO/Nutrition & Metabolism, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, Algiers, Algeria
| | - Mohamed Abdlalli
- Service of Pathology and Anatomy, CHU Hussein Dey: Ex: Parnet, Algiers, Algeria
| | - Ali Khalkhal
- LBPO/Nutrition & Metabolism, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, Algiers, Algeria
| | - Yasmina Dahmani
- LBPO/Nutrition & Metabolism, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, Algiers, Algeria
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Guo S, Mao X, Yan Y, Zhang Y, Ming L. Changes of liver transcriptome profiles following oxidative stress in streptozotocin-induced diabetes in mice. PeerJ 2020; 8:e8983. [PMID: 32518714 PMCID: PMC7261117 DOI: 10.7717/peerj.8983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/25/2020] [Indexed: 11/20/2022] Open
Abstract
Background Oxidative-stress (OS) was causal in the development of cell dysfunction and insulin resistance. Streptozotocin (STZ) was an alkylation agent that increased reactive oxygen species (ROS) levels. Here we aimed to explore the oxidative-stress and related RNAs in the liver of STZ-induced diabetic mice. Methods RNA-sequencing was performed using liver tissues from STZ induced diabetic mice and controls. Pathway and Gene Ontology (GO) analyses were utilized to annotate the target genes. The differentially expressed RNAs involved in the peroxisome pathway were validated by qRT-PCR. The glucose metabolite and OS markers were measured in the normal control (NC) and STZ-induced diabetic mellitus (DM) group. Results The levels of serum Fasting insulin, HbA1c, Malondialdehyde (MDA) and 8-iso-prostaglandin F2α (8-iso-PGF2α) were significant higher in DM groups than NC group, while SOD activity decreased significantly in DM groups. We found 416 lncRNAs and 910 mRNAs were differentially expressed in the STZ-induced diabetic mice compared to the control group. OS associated RNAs were differentially expressed in the liver of STZ-induced diabetic mice. Conclusion This study confirmed that the OS was increased in the STZ-induced DM mice as evidenced by the increase of lipid peroxidation product MDA and 8-iso-PGF2α, identified aberrantly expressed lncRNAs and mRNAs in STZ-induced diabetic mice.
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Affiliation(s)
- Shuren Guo
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Xiaohuan Mao
- Department of Clinical Laboratory, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yunmeng Yan
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yan Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Liang Ming
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
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Sujithra K, Srinivasan S, Indumathi D, Vinothkumar V. Allyl methyl sulfide, a garlic active component mitigates hyperglycemia by restoration of circulatory antioxidant status and attenuating glycoprotein components in streptozotocin-induced experimental rats. Toxicol Mech Methods 2018; 29:165-176. [DOI: 10.1080/15376516.2018.1534297] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Kathiroli Sujithra
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India
| | - Subramani Srinivasan
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India
- Postgraduate and Research Department of Biochemistry, Government Arts College For Women, Krishnagiri, Tamilnadu, India
| | - Dhananjayan Indumathi
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India
| | - Veerasamy Vinothkumar
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India
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