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Homolak J, Babic Perhoc A, Knezovic A, Osmanovic Barilar J, Virag D, Salkovic-Petrisic M. Exploratory Study of Gastrointestinal Redox Biomarkers in the Presymptomatic and Symptomatic Tg2576 Mouse Model of Familial Alzheimer's Disease: Phenotypic Correlates and Effects of Chronic Oral d-Galactose. ACS Chem Neurosci 2023; 14:4013-4025. [PMID: 37932005 PMCID: PMC10655039 DOI: 10.1021/acschemneuro.3c00495] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/08/2023] Open
Abstract
The gut might play an important role in the etiopathogenesis of Alzheimer's disease (AD) as gastrointestinal alterations often precede the development of neuropathological changes in the brain and correlate with disease progression in animal models. The gut has an immense capacity to generate free radicals whose role in the etiopathogenesis of AD is well-known; however, it remains to be clarified whether gastrointestinal redox homeostasis is associated with the development of AD. The aim was to (i) examine gastrointestinal redox homeostasis in the presymptomatic and symptomatic Tg2576 mouse model of AD; (ii) investigate the effects of oral d-galactose previously shown to alleviate cognitive deficits and metabolic changes in animal models of AD and reduce gastrointestinal oxidative stress; and (iii) investigate the association between gastrointestinal redox biomarkers and behavioral alterations in Tg2576 mice. In the presymptomatic stage, Tg2576 mice displayed an increased gastrointestinal electrophilic tone, characterized by higher lipid peroxidation and elevated Mn/Fe-SOD activity. In the symptomatic stage, these alterations are rectified, but the total antioxidant capacity is decreased. Chronic oral d-galactose increased the antioxidant capacity and reduced lipid peroxidation in the Tg2576 but had the opposite effects in the wild-type animals. The total antioxidant capacity of the gastrointestinal tract was associated with greater spatial memory. Gut redox homeostasis might be involved in the development and progression of AD pathophysiology and should be further explored in this context.
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Affiliation(s)
- Jan Homolak
- Department
of Pharmacology, University of Zagreb School
of Medicine, Zagreb 10000, Croatia
- Croatian
Institute for Brain Research, University of Zagreb School of Medicine, Zagreb 10000, Croatia
- Interfaculty
Institute of Microbiology and Infection Medicine, University of Tübingen, Tübingen 72076, Germany
- Cluster
of Excellence “Controlling Microbes to Fight Infections”, University of Tübingen, Tübingen 72076, Germany
| | - Ana Babic Perhoc
- Department
of Pharmacology, University of Zagreb School
of Medicine, Zagreb 10000, Croatia
- Croatian
Institute for Brain Research, University of Zagreb School of Medicine, Zagreb 10000, Croatia
| | - Ana Knezovic
- Department
of Pharmacology, University of Zagreb School
of Medicine, Zagreb 10000, Croatia
- Croatian
Institute for Brain Research, University of Zagreb School of Medicine, Zagreb 10000, Croatia
| | - Jelena Osmanovic Barilar
- Department
of Pharmacology, University of Zagreb School
of Medicine, Zagreb 10000, Croatia
- Croatian
Institute for Brain Research, University of Zagreb School of Medicine, Zagreb 10000, Croatia
| | - Davor Virag
- Department
of Pharmacology, University of Zagreb School
of Medicine, Zagreb 10000, Croatia
- Croatian
Institute for Brain Research, University of Zagreb School of Medicine, Zagreb 10000, Croatia
| | - Melita Salkovic-Petrisic
- Department
of Pharmacology, University of Zagreb School
of Medicine, Zagreb 10000, Croatia
- Croatian
Institute for Brain Research, University of Zagreb School of Medicine, Zagreb 10000, Croatia
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Homolak J, Babic Perhoc A, Virag D, Knezovic A, Osmanovic Barilar J, Salkovic-Petrisic M. D-galactose might protect against ionizing radiation by stimulating oxidative metabolism and modulating redox homeostasis. JOURNAL OF RADIATION RESEARCH 2023:rrad046. [PMID: 37312584 DOI: 10.1093/jrr/rrad046] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 04/24/2023] [Indexed: 06/15/2023]
Affiliation(s)
- Jan Homolak
- Department of Pharmacology, University of Zagreb School of Medicine, Šalata 11, Zagreb 10 000, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Šalata 12, Zagreb 10 000, Croatia
| | - Ana Babic Perhoc
- Department of Pharmacology, University of Zagreb School of Medicine, Šalata 11, Zagreb 10 000, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Šalata 12, Zagreb 10 000, Croatia
| | - Davor Virag
- Department of Pharmacology, University of Zagreb School of Medicine, Šalata 11, Zagreb 10 000, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Šalata 12, Zagreb 10 000, Croatia
| | - Ana Knezovic
- Department of Pharmacology, University of Zagreb School of Medicine, Šalata 11, Zagreb 10 000, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Šalata 12, Zagreb 10 000, Croatia
| | - Jelena Osmanovic Barilar
- Department of Pharmacology, University of Zagreb School of Medicine, Šalata 11, Zagreb 10 000, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Šalata 12, Zagreb 10 000, Croatia
| | - Melita Salkovic-Petrisic
- Department of Pharmacology, University of Zagreb School of Medicine, Šalata 11, Zagreb 10 000, Croatia
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, Šalata 12, Zagreb 10 000, Croatia
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Salama AAA, Yassen NN, Mansour HM. Naringin protects mice from D-galactose-induced lung aging and mitochondrial dysfunction: Implication of SIRT1 pathways. Life Sci 2023; 324:121471. [PMID: 36746356 DOI: 10.1016/j.lfs.2023.121471] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/23/2023] [Accepted: 01/31/2023] [Indexed: 02/07/2023]
Abstract
AIM Aging is the leading risk factor for diminishing lung function, as well as injury and lung disorder. The target of our research was to examine the potential protective effect of naringin and the possible role of SIRT1 in mice with D-galactose-induced lung aging, by evaluating its effects on antioxidant systems, mitochondrial biogenesis, autophagy, and apoptosis, by referring to the potential involvement of Nrf2/NQO1, LKB1/AMPK/PGC-1α, FOXO1, and P53/caspase-3 signaling. MATERIAL AND METHODS The mice were randomly sorted into 5 groups (10 each): 1st: normal group received subcutaneous normal saline and intragastric distilled water, 2nd: naringin 300 mg/kg orally, 3rd: D-galactose (200 mg/kg/day) was administered subcutaneously into mice for eight weeks, to accelerate aging, 4th & 5th: oral naringin (150, 300 mg/kg) was given daily concurrently with D-galactose injection for 8 weeks. KEY FINDING In silico investigation revealed that naringin substantially stimulates the SIRT1 and AMPK molecules. At the molecular level, our findings indicated that treatment with naringin stimulated the mitochondrial biogenesis pathway through regulation of the LKB1/AMPK/PGC-1α signals and upregulated FOXO1-mediated autophagy. Furthermore, naringin exhibited antioxidant properties by activating the Nrf2/NQO1 pathway and inhibiting MDA and AGEs levels. In addition, Naringin ameliorated alveolar spaces destruction and bronchial wall thickening, as well as alleviated P53/caspase-3 apoptosis signaling. SIGNIFICANCE Naringin exerts protective effects against D-galactose-induced lung aging and enhances longevity by activating SIRT1. SIRT1 regulates various aging-related molecular pathways via restoring pro-oxidant/antioxidant homeostasis, activation of mitochondrial biogenesis, modulating of autophagy and inhibition of apoptosis.
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Affiliation(s)
- Abeer A A Salama
- Pharmacology Department, National Research Centre, El-Buhouth St., Dokki, Cairo 12622, Egypt
| | - Noha N Yassen
- Pathology Department, National Research Centre, El-Buhouth St., Dokki, Cairo 12622, Egypt
| | - Heba M Mansour
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), 6th of October City, Giza, Egypt.
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Kandeda AK, Nguedia D, Djeuzong E, Kouamouo J, Dimo T. An aqueous macerate of Ziziphus jujuba reduces long-term spatial memory impairment in D-galactose treated rats: role of anti-inflammatory pathways. Metab Brain Dis 2022; 37:2995-3009. [PMID: 35922734 DOI: 10.1007/s11011-022-01050-0] [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: 11/27/2021] [Accepted: 07/07/2022] [Indexed: 10/16/2022]
Abstract
Pharmacological treatments against Alzheimer disease provide only symptomatic relief and are associated with numerous side effects. Previous studies showed that a concoction of Ziziphus jujuba leaves possesses anti-amnesic effects in scopolamine-treated rats. More recently, an aqueous macerate of Z. jujuba leaves has been shown to reduce short-term memory impairment in D-galactose-treated rats. However, no study on the effect of an aqueous macerate of Z. jujuba on long-term memory impairment was performed. Therefore, this study evaluates the effect of an aqueous macerate of Z. jujuba on long-term spatial memory impairment in D-galactose-treated rats. Long-term spatial memory impairment was induced in rats by administering D-galactose (350 mg/kg/day, s.c.), once dailyfor 21 days. On the 22nd day, the integrity of this memory was assessed using the Morris water maze task. Rats that developed memory impairment were treated with tacrine (10 mg/kg, p.o.), or aspirin (20 mg/kg, p.o.), or extract (41.5, 83, and 166 mg/kg, p.o.), once daily, for 14 days. At the end of the treatment, memory impairment was once more assessed using the same paradigm. Animals were then euthanized, and some pro-inflammatory cytokine markers were analyzed in the hippocampus or blood. The extract at all doses significantly reduced the latency to attain the platforming of the water maze test. The extract (83 mg/kg) also increased the time spent in the target quadrant during the retention phase. The extract markedly reduced the concentration of pro-inflammatory cytokine markers in the hippocampus and blood. Together, these results suggest that this aqueous extract Z. jujuba reduces long-term spatial memory impairment. This effect may be mediated in part by its anti-inflammatory activity.
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Affiliation(s)
- Antoine Kavaye Kandeda
- Department of Animal Biology and Physiology, University of Yaoundé I, Yaoundé, P.O. Box 812, Cameroon.
| | - Danide Nguedia
- Department of Pharmacy, University of the Mountains, Bangangté, P.O. Box 208, Cameroon
| | - Etienne Djeuzong
- Department of Pharmacy, University of the Mountains, Bangangté, P.O. Box 208, Cameroon
| | - Jonas Kouamouo
- Department of Pharmacy, University of the Mountains, Bangangté, P.O. Box 208, Cameroon
| | - Théophile Dimo
- Department of Animal Biology and Physiology, University of Yaoundé I, Yaoundé, P.O. Box 812, Cameroon
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Metformin alleviates neurocognitive impairment in aging via activation of AMPK/BDNF/PI3K pathway. Sci Rep 2022; 12:17084. [PMID: 36224264 PMCID: PMC9556637 DOI: 10.1038/s41598-022-20945-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 09/21/2022] [Indexed: 01/04/2023] Open
Abstract
Slowing down age-related neurocognitive impairment has been a challenge. We evaluated the therapeutic effects of metformin in D-galactose-induced aging. Additionally, we studied the potential molecular mechanisms that could be responsible for metformin's anti-aging effects. Thirty male rats were equally divided into: 1-control group, which received saline solution, 2-D-galactose (D-gal) group, which received D-galactose (100 mg/kg/day) by gastric lavage for eight weeks, and 3-D-galactose + Metformin (D-gal + Met) treated group, which received D-galactose + metformin (200 mg/kg/day) by gastric lavage for eight weeks. Neurocognitive assessment was done. Measurement of inflammatory, oxidative stress, and BDNF biomarkers was performed. AMPK and PI3K genes expression were assessed. Hippocampal tissues were dissected for histopathological and immunohistochemical studies. D-gal resulted in neurocognitive impairments, elevation of inflammatory biomarkers, altered oxidative stress markers, decreased BDNF, decreased expression of synaptophysin and Bcl2 with increased expression of Caspase-3, and down-regulation of AMPK and PI3K genes. Neurodegenerative changes were present in the hippocampus. Metformin restored significantly D-gal induced neurodegenerative changes. We concluded that metformin could alleviate age-induced neurocognitive deficit via amelioration of neuroinflammation, attenuation of oxidative stress, reduction of apoptosis, as well as promotion of synaptic plasticity. These mechanisms could be mediated via the activation of the AMPK/BDNF/PI3K pathway.
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Ezzat MI, Issa MY, Sallam IE, Zaafar D, Khalil HMA, Mousa MR, Sabry D, Gawish AY, Elghandour AH, Mohsen E. Impact of different processing methods on the phenolics and neuroprotective activity of Fragaria ananassa Duch. extracts in a D-galactose and aluminum chloride-induced rat model of aging. Food Funct 2022; 13:7794-7812. [PMID: 35766389 DOI: 10.1039/d2fo00645f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2023]
Abstract
Age-related diseases, including dementia, are a major health concern affecting daily human life. Strawberry (Fragaria ananassa Duch.) is the most eaten fruit worldwide due to its exceptional aroma and flavor. However, it's rapid softening and decay limit its shelf-life. Freezing and boiling represent the well-known conservation methods to extend its shelf-life. Therefore, we aimed to discover the phytochemical content differences of fresh and processed strawberries associated with investigating and comparing their neuroprotective effects in a rat model of aging. Female Wistar rats were orally pretreated with fresh, boiled, and frozen F. ananassa methanolic extracts (250 mg kg-1) for 2 weeks, and then these extracts were concomitantly exposed to D-galactose [65 mg kg-1, subcutaneously (S/C)] and AlCl3 (200 mg kg-1, orally) for 6 weeks to develop aging-like symptoms. The results of UPLC/ESI-MS phytochemical profiling revealed 36 secondary metabolites, including phenolics, flavonoids, and their glycoside derivatives. Compared with boiled and frozen extracts, the fresh extract ameliorated the behavioral deficits including anxiety and cognitive dysfunction, upregulated brain HO-1 and Nrf2 levels, and markedly reduced caspase-3 and PPAR-γ levels. Moreover, LDH and miRNA-9, 124 and 132 protein expressions were reduced. The histological architecture of the brain hippocampus was restored and glial fibrillary acidic protein (GFAP) immunoexpression was downregulated. In conclusion, the fresh extract has neuroprotective activity that could have a promising role in ameliorating age-related neurodegeneration.
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Affiliation(s)
- Marwa I Ezzat
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt.
| | - Marwa Y Issa
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt.
| | - Ibrahim E Sallam
- Pharmacognosy Department, College of Pharmacy, October University for Modern Sciences and Arts (MSA), 6th of October City, 12566, Egypt
| | - Dalia Zaafar
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Modern University for Technology and Information, el-Mokattam, Cairo, 11581, Egypt
| | - Heba M A Khalil
- Veterinary Hygiene and Management Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt
| | - Mohamed R Mousa
- Pathology Department, Faculty of Vet. Medicine, Cairo University, Giza, 12211, Egypt
| | - Dina Sabry
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, 11562, Egypt
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Badr University, 11829, Egypt
| | - Aya Y Gawish
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Modern University for Technology and Information, el-Mokattam, Cairo, 11581, Egypt
| | - Ahmed H Elghandour
- Communication Department, Military Technical College, Cairo, 11766, Egypt
| | - Engy Mohsen
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt.
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7
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Guo L, Cao J, Cheng D, Dong H, You L, Sun Y, Ding Y, Chai Y. Gallic acid ameliorates thymic involution via activating Sox2 and Nanog. Scand J Immunol 2022. [DOI: 10.1111/sji.13202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Li Guo
- Department of Histology and Embryology, School of Basic Medical Sciences Zhengzhou University 450001 Zhengzhou Henan China
- Department of Radiation Medical Protection, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment School of Military Preventive Medicine Fourth Military Medical University, Xi’an,710000 China
| | - Jia‐hui Cao
- Department of Histology and Embryology, School of Basic Medical Sciences Zhengzhou University 450001 Zhengzhou Henan China
| | - Deng‐wei Cheng
- Department of Histology and Embryology, School of Basic Medical Sciences Zhengzhou University 450001 Zhengzhou Henan China
| | - Han Dong
- Department of Histology and Embryology, School of Basic Medical Sciences Zhengzhou University 450001 Zhengzhou Henan China
| | - Li You
- Department of Histology and Embryology, School of Basic Medical Sciences Zhengzhou University 450001 Zhengzhou Henan China
| | - Yun Sun
- Department of Histology and Embryology, School of Basic Medical Sciences Zhengzhou University 450001 Zhengzhou Henan China
| | - Yi Ding
- Department of Histology and Embryology, School of Basic Medical Sciences Zhengzhou University 450001 Zhengzhou Henan China
| | - Yu‐rong Chai
- Department of Histology and Embryology, School of Basic Medical Sciences Zhengzhou University 450001 Zhengzhou Henan China
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Naproxen as a potential candidate for promoting rivastigmine anti-Alzheimer activity against aluminum chloride-prompted Alzheimer's-like disease in rats; neurogenesis and apoptosis modulation as a possible underlying mechanism. Eur J Pharmacol 2022; 915:174695. [PMID: 34914971 DOI: 10.1016/j.ejphar.2021.174695] [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: 08/09/2021] [Revised: 11/29/2021] [Accepted: 12/07/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND AND AIM Alzheimer's disease (AD) is one of the leading causes of dependence and disability among the elderly worldwide. The traditional anti-Alzheimer medication, rivastigmine, one of the cholinesterase inhibitors (ChEIs), fails to achieve a definitive cure. We tested the hypothesis that naproxen administration to the rivastigmine-treated aluminum chloride (AlCl3) Alzheimer's rat model could provide an additive neuroprotective effect compared to rivastigmine alone. MATERIALS AND METHODS The studied groups were control (Cont), AlCl3 treated (Al), rivastigmine treated (RIVA), naproxen treated (Napro), and combined rivastigmine and naproxen treated (RIVA + Napro). Rats' memory, spatial learning, and cognitive behavior were assessed followed by evaluation of hippocampal acetylcholinesterase (AChE) activity. Hippocampal and cerebellar histopathology were thoroughly examined. Activated caspase-3 and the neuroepithelial stem cells marker; nestin expressions were immunohistochemically assayed. RESULTS AD rats displayed significantly impaired memory and cognitive function, augmented hippocampal AChE activity; massive neurodegeneration associated with enhanced astrogliosis, apoptosis, and impaired neurogenesis. Except for the enhancement of neurogenesis and suppression of apoptosis, the combination therapy had no additional neuroprotective benefit over rivastigmine-only therapy. CONCLUSION Naproxen's efficacy was established by its ability to function at the cellular level, improved neurogenesis, and decreased, apoptosis without having an additional mitigating impact on cognitive impairment in rivastigmine-treated AD rats.
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Homolak J, Babic Perhoc A, Knezovic A, Osmanovic Barilar J, Virag D, Joja M, Salkovic-Petrisic M. The Effect of Acute Oral Galactose Administration on the Redox System of the Rat Small Intestine. Antioxidants (Basel) 2021; 11:37. [PMID: 35052541 PMCID: PMC8773155 DOI: 10.3390/antiox11010037] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/22/2021] [Accepted: 12/22/2021] [Indexed: 12/16/2022] Open
Abstract
Galactose is a ubiquitous monosaccharide with important yet incompletely understood nutritive and physiological roles. Chronic parenteral d-galactose administration is used for modeling aging-related pathophysiological processes in rodents due to its ability to induce oxidative stress (OS). Conversely, chronic oral d-galactose administration prevents and alleviates cognitive decline in a rat model of sporadic Alzheimer's disease, indicating that galactose may exert beneficial health effects by acting in the gut. The present aim was to explore the acute time-response of intestinal redox homeostasis following oral administration of d-galactose. Male Wistar rats were euthanized at baseline (n = 6), 30 (n = 6), 60 (n = 6), and 120 (n = 6) minutes following orogastric administration of d-galactose (200 mg/kg). The overall reductive capacity, lipid peroxidation, the concentration of low-molecular-weight thiols (LMWT) and protein sulfhydryls (SH), the activity of Mn and Cu/Zn superoxide dismutases (SOD), reduced and oxidized fractions of nicotinamide adenine dinucleotide phosphates (NADPH/NADP), and the hydrogen peroxide dissociation rate were analyzed in duodenum and ileum. Acute oral administration of d-galactose increased the activity of SODs and decreased intestinal lipid peroxidation and nucleophilic substrates (LMWT, SH, NADPH), indicating activation of peroxidative damage defense pathways. The redox system of the small intestine can acutely tolerate even high luminal concentrations of galactose (0.55 M), and oral galactose treatment is associated with a reduction rather than the increment of the intestinal OS. The ability of oral d-galactose to modulate intestinal OS should be further explored in the context of intestinal barrier maintenance, and beneficial cognitive effects associated with long-term administration of low doses of d-galactose.
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Affiliation(s)
- Jan Homolak
- Department of Pharmacology, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia; (A.B.P.); (A.K.); (J.O.B.); (D.V.); (M.J.); (M.S.-P.)
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia
| | - Ana Babic Perhoc
- Department of Pharmacology, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia; (A.B.P.); (A.K.); (J.O.B.); (D.V.); (M.J.); (M.S.-P.)
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia
| | - Ana Knezovic
- Department of Pharmacology, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia; (A.B.P.); (A.K.); (J.O.B.); (D.V.); (M.J.); (M.S.-P.)
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia
| | - Jelena Osmanovic Barilar
- Department of Pharmacology, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia; (A.B.P.); (A.K.); (J.O.B.); (D.V.); (M.J.); (M.S.-P.)
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia
| | - Davor Virag
- Department of Pharmacology, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia; (A.B.P.); (A.K.); (J.O.B.); (D.V.); (M.J.); (M.S.-P.)
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia
| | - Mihovil Joja
- Department of Pharmacology, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia; (A.B.P.); (A.K.); (J.O.B.); (D.V.); (M.J.); (M.S.-P.)
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia
| | - Melita Salkovic-Petrisic
- Department of Pharmacology, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia; (A.B.P.); (A.K.); (J.O.B.); (D.V.); (M.J.); (M.S.-P.)
- Croatian Institute for Brain Research, University of Zagreb School of Medicine, 10 000 Zagreb, Croatia
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10
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Homolak J, Babic Perhoc A, Knezovic A, Kodvanj I, Virag D, Osmanovic Barilar J, Riederer P, Salkovic-Petrisic M. Is Galactose a Hormetic Sugar? An Exploratory Study of the Rat Hippocampal Redox Regulatory Network. Mol Nutr Food Res 2021; 65:e2100400. [PMID: 34453395 DOI: 10.1002/mnfr.202100400] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/24/2021] [Indexed: 01/22/2023]
Abstract
SCOPE Galactose, a ubiquitous monosaccharide with incompletely understood physiology is often exploited for inducing oxidative-stress mediated aging in animals. Recent research demonstrates that galactose can conserve cellular function during periods of starvation and prevent/alleviate cognitive deficits in a rat model of sporadic Alzheimer's disease. The present aim is to examine the acute effects of oral galactose on the redox regulatory network (RRN). METHODS AND RESULTS Rat plasma and hippocampal RRNs are analyzed upon acute orogastric gavage of galactose (200 mg kg-1 ). No systemic RRN disbalance is observed; however, a mild pro-oxidative shift accompanied by a paradoxical increment in tissue reductive capacity suggesting overcompensation of endogenous antioxidant systems is observed in the hippocampus. Galactose-induced increment of reductive capacity is accompanied by inflation of the hippocampal pool of nicotinamide adenine dinucleotide phosphates indicating ROS detoxification through disinhibition of the oxidative pentose phosphate pathway flux, reduced neuronal activity, and upregulation of Leloir pathway gatekeeper enzyme galactokinase-1. CONCLUSION Based on the observed findings, and in the context of previous work on galactose, a hormetic hypothesis of galactose is proposed suggesting that the protective effects may be inseparable from its pro-oxidative action at the biochemical level.
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Affiliation(s)
- Jan Homolak
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia.,Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Ana Babic Perhoc
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia.,Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Ana Knezovic
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia.,Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Ivan Kodvanj
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia.,Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Davor Virag
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia.,Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Jelena Osmanovic Barilar
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia.,Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Peter Riederer
- Clinic and Polyclinic for Psychiatry, Psychosomatics and Psychotherapy, University Hospital Wuerzburg, Wuerzburg, Germany.,University of Southern Denmark Odense, Odense, Denmark
| | - Melita Salkovic-Petrisic
- Department of Pharmacology, University of Zagreb School of Medicine, Zagreb, Croatia.,Croatian Institute for Brain Research, University of Zagreb School of Medicine, Zagreb, Croatia
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11
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Gao J, Zhou N, Wu Y, Lu M, Wang Q, Xia C, Zhou M, Xu Y. Urinary metabolomic changes and microbiotic alterations in presenilin1/2 conditional double knockout mice. J Transl Med 2021; 19:351. [PMID: 34399766 PMCID: PMC8365912 DOI: 10.1186/s12967-021-03032-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/07/2021] [Indexed: 12/13/2022] Open
Abstract
Background Given the clinical low efficient treatment based on mono-brain-target design in Alzheimer’s disease (AD) and an increasing emphasis on microbiome-gut-brain axis which was considered as a crucial pathway to affect the progress of AD along with metabolic changes, integrative metabolomic signatures and microbiotic community profilings were applied on the early age (2-month) and mature age (6-month) of presenilin1/2 conditional double knockout (PS cDKO) mice which exhibit a series of AD-like phenotypes, comparing with gender and age-matched C57BL/6 wild-type (WT) mice to clarify the relationship between microbiota and metabolomic changes during the disease progression of AD. Materials and methods Urinary and fecal samples from PS cDKO mice and gender-matched C57BL/6 wild-type (WT) mice both at age of 2 and 6 months were collected. Urinary metabolomic signatures were measured by the gas chromatography-time-of-flight mass spectrometer, as well as 16S rRNA sequence analysis was performed to analyse the microbiota composition at both ages. Furthermore, combining microbiotic functional prediction and Spearman’s correlation coefficient analysis to explore the relationship between differential urinary metabolites and gut microbiota. Results In addition to memory impairment, PS cDKO mice displayed metabolic and microbiotic changes at both of early and mature ages. By longitudinal study, xylitol and glycine were reduced at both ages. The disturbed metabolic pathways were involved in glycine, serine and threonine metabolism, glyoxylate and dicarboxylate metabolism, pentose and glucuronate interconversions, starch and sucrose metabolism, and citrate cycle, which were consistent with functional metabolic pathway predicted by the gut microbiome, including energy metabolism, lipid metabolism, glycan biosynthesis and metabolism. Besides reduced richness and evenness in gut microbiome, PS cDKO mice displayed increases in Lactobacillus, while decreases in norank_f_Muribaculaceae, Lachnospiraceae_NK4A136_group, Mucispirillum, and Odoribacter. Those altered microbiota were exceedingly associated with the levels of differential metabolites. Conclusions The urinary metabolomics of AD may be partially mediated by the gut microbiota. The integrated analysis between gut microbes and host metabolism may provide a reference for the pathogenesis of AD. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-03032-9.
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Affiliation(s)
- Jie Gao
- Department of Physiology, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China.,Department of Rehabilitation Medicine, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, 226001, Jiangsu, China
| | - Nian Zhou
- Center for Chinese Medicine Therapy and Systems Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong District, Shanghai, 201203, China
| | - Yongkang Wu
- Department of Physiology, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Mengna Lu
- Center for Chinese Medicine Therapy and Systems Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong District, Shanghai, 201203, China.,School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Qixue Wang
- Center for Chinese Medicine Therapy and Systems Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong District, Shanghai, 201203, China
| | - Chenyi Xia
- Department of Physiology, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China
| | - Mingmei Zhou
- Center for Chinese Medicine Therapy and Systems Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Pudong District, Shanghai, 201203, China.
| | - Ying Xu
- Department of Physiology, School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai, 201203, China.
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12
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Chen Z, Xiao J, Liu H, Yao K, Hou X, Cao Y, Liu X. Astaxanthin attenuates oxidative stress and immune impairment in D-galactose-induced aging in rats by activating the Nrf2/Keap1 pathway and suppressing the NF-κB pathway. Food Funct 2021; 11:8099-8111. [PMID: 32857080 DOI: 10.1039/d0fo01663b] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
As a potential antioxidant, astaxanthin (AST) exhibits anti-aging effects. However, its relationships to oxidative stress and immunity have yet to be sufficiently investigated. In this research, integrated analysis of oxidative stress and immunosenescence was performed to elucidate the efficacy and potential mechanisms of AST in d-galactose-induced aging in rats. The results showed that AST significantly decreased malonaldehyde (MDA) levels and increased antioxidase activity, in addition to demonstrating the ability to repair histopathological injuries to the liver, thereby attenuating oxidative stress. Nuclear factor erythroid 2-related factor 2 (Nrf2) expression was up-regulated by 117.95%, whereas Kelch-like ECH-associated protein-1 (Keap1) expression was simultaneously down-regulated by 51.22%. Moreover, AST significantly reduced interleukin-1β (IL-1β) and interleukin-6 (IL-6) levels, as well as expression of nuclear factor-kappa B (NF-κB) (p65) and i-kappa-B-alpha (IκBα) proteins. Findings of repair of immune organs, as well as elevated levels of interleukin-2 (IL-2), immunoglobulin M (IgM) and immunoglobulin G (IgG), suggest a novel mechanism by which AST could regulate cellular immunity and humoral immunity to attenuate immunosenescence. The anti-aging effects of AST were shown to be due in part to the Nrf2/Keap1 and NF-κB pathways, and AST treatment ameliorated oxidative stress and immune impairment overall.
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Affiliation(s)
- Zhiqing Chen
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, Guangdong, China. and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Jie Xiao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, Guangdong, China. and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Han Liu
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, Guangdong, China. and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Kangfei Yao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, Guangdong, China. and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Xiaoning Hou
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, Guangdong, China. and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, Guangdong, China. and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Xiaojuan Liu
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, Guangdong, China. and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
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13
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Ziziphus jujuba (Rhamnaceae) Alleviates Working Memory Impairment and Restores Neurochemical Alterations in the Prefrontal Cortex of D-Galactose-Treated Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6610864. [PMID: 34194520 PMCID: PMC8184324 DOI: 10.1155/2021/6610864] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 04/15/2021] [Accepted: 05/19/2021] [Indexed: 11/17/2022]
Abstract
Alzheimer's disease is a progressive cognitive dysfunction. However, pharmacological treatments are symptomatic and have many side effects, opening the opportunity to alternative medicine. This study investigated the antiamnesic effect of the aqueous extract of Ziziphus jujuba on D-galactose-induced working memory impairment in rats. Impairment of working memory was induced by subcutaneous (s.c.) injection of D-galactose (350 mg/kg/day) to rats for 21 days. These animals were then subjected to object recognition and Y-maze tests. Rats with confirmed memory impairment were treated per os (p.o.) with tacrine (10 mg/kg), aspirin (20 mg/kg, p.o.), extract (41.5, 83, and 166 mg/kg, p.o.), and distilled water (10 mL/kg, p.o.) daily for 14 days. At the end of the treatments, alteration in working memory was assessed using the above paradigms. Afterward, these animals were euthanized, and cholinergic, proinflammatory, and neuronal damage markers were analyzed in the prefrontal cortex. Rats administered D-galactose and treated with distilled water had impaired working memory (evidenced by decreased time spent on the novel object and discrimination index) and decreased spontaneous alternation in the Y-maze. D-galactose also decreased the levels of acetylcholinesterase and acetylcholine and increased the level of glial fibrillary acidic protein, ionized calcium-binding adapter molecule 1, tumor necrosis factor-alpha (TNF-α), interleukin 1 beta (IL-1β), interleukin 6 (IL-6), and interferon-gamma (IFN-γ). Treatment with the extract (166 mg/kg) reversed the time spent on the novel object and the discrimination index. It equally increased the percentage of spontaneous alternation. Neurochemical analysis revealed that the extract markedly alleviated acetylcholinesterase activity and neuroinflammation. These observations were corroborated by the reduction in neuronal loss. Taken together, these results suggest that Ziziphus jujuba aqueous extract possesses an antiamnesic effect. This effect seems to involve cholinergic and anti-inflammatory modulations. This, therefore, claims using this plant in the treatment of dementia in Cameroon subject to further studies and trials.
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14
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Slobodianiuk L, Budniak L, Marchyshyn S, Kostyshyn L, Zakharchuk O. Analysis of carbohydrates in Saponaria officinalis L. using GC/MS method. PHARMACIA 2021. [DOI: 10.3897/pharmacia.68.e62691] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Saponaria officinalis L. (common soapwort), usually named fuller’s herb, is encountered in most of Europe, in Spain, France, Italy, for example, and also in Syria and North Africa. Saponaria officinalis L. is known in most of the world as an introduced species, often a weed, and sometimes as cultivated decorative plant. Saponaria officinalis contains a large amount of saponins, which foam during extraction with water. In addition to saponins, common soapwort also contains flavonoids, quillaic acid, fatty acids and different phenolic compounds. There is a lack of information about carbohydrates content of common soapwort. Thus the aim of this study was to determine the content of carbohydrates Saponaria officinalis L. herb and roots. The qualitative composition and quantitative content of carbohydrates in herb and roots of Saponaria officinalis L. were determined by using GC/MS method. The studies have shown that Saponaria officinalis L. herb is mainly composed of free carbohydrates such as D-glucose (3.65 mg/g), D-galactose (0.29 mg/g), D-fructose (0.20 mg/g) and D-saccharose (3.72 mg/g). In common soapwort herb, after acidic hydrolysis and derivatization with acetylated aldononitriles, D-arabinose, D-fucose, D-mannose, D-glucose, D-galactose, D-fructose and Myo-inositol were identified. Free carbohydrates in the roots of Saponaria officinalis L., including D-glucose, D-galactose and D-saccharose, were determined with GC/MS method too. D-saccharose was common among free carbohydrates of Saponaria officinalis L. in the largest amounts. Its content in herb and roots of the common soapwort was 3.72 mg/g and 25.39 mg/g respectively.
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15
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Wei TT, Feng YK, Cao JH, Li JH, Yuan SL, Ding Y, Chai YR. Dosage effects of resveratrol on thymus involution in D-galactose-treated mice. J Food Biochem 2021; 45:e13709. [PMID: 33778958 DOI: 10.1111/jfbc.13709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/01/2021] [Accepted: 03/08/2021] [Indexed: 12/18/2022]
Abstract
The thymus regulates a specific microenvironment for the growth and maturation of naive T cells. Involution of immune function was an important factor during body aging. Preventing the senescence of immune organs has become a major medical issue. Resveratrol (RSV) has been proved to delay the aging of many organs including the thymus. However, the underlying mechanism remains indefinite and the dosages of RSV on thymus involution need to be further clarified. In the current study, the senescence-accelerated mice were produced using d-galactose for two months. RSV at different dosages (25, 50, 100 mg kg-1 day-1 ) was then administered. The alteration of the thymic morphological structure was observed. It showed that three dosages of RSV significantly decreased cellular senescence of the thymus and no dosage difference was detected. For cellular proliferation and apoptosis of the thymus, 50 and 25 mg/kg per day of RSV displayed the best effects on cellular proliferation and apoptosis in the thymus, respectively. Furthermore, 50 mg/kg per day of RSV increased the expression of FoxN1 both at transcription and translation levels. These findings indicated that RSV could delay thymus atrophy in a dosage-dependent pattern and FoxN1 might involve in the beneficial mechanism of RSV, which was of great significance for the enhancement of thymic health and organic immunity. PRACTICAL APPLICATIONS: Resveratrol has been proved to delay aging of many organs including of thymus. In the present study, we explored the dosage of resveratrol on thymus involution and the expression of transcription factors forkhead box protein N1 (FoxN1) in the senescenceaccelerated mice induced by D-galactose. The results indicated that resveratrol could delay thymus atrophy in a dosage-dependent pattern within a certain dose range, and higher RSV concentration may have drug toxicity, which suggests that the dosage of RSV requires attention, And FoxN1 might involve in the beneficial mechanism of resveratrol supplement, which was of great significance to explore the mechanism for the enhancement of thymus immunity.
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Affiliation(s)
- Ting-Ting Wei
- Department of Histology and Embryology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China.,Henan Scientific and Technical Institute of Reproductive Health, Zhengzhou, China
| | - Yuan-Kang Feng
- Department of Histology and Embryology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jia-Hui Cao
- Department of Histology and Embryology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jie-Han Li
- Department of Histology and Embryology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Shu-Liang Yuan
- Department of Histology and Embryology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Yi Ding
- Department of Histology and Embryology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Yu-Rong Chai
- Department of Histology and Embryology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
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16
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Flores-Cuadra JA, Madrid A, Fernández PL, Pérez-Lao AR, Oviedo DC, Britton GB, Carreira MB. Critical Review of the Alzheimer's Disease Non-Transgenic Models: Can They Contribute to Disease Treatment? J Alzheimers Dis 2020; 82:S227-S250. [PMID: 33216029 DOI: 10.3233/jad-200870] [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] [Indexed: 01/07/2023]
Abstract
Alzheimer's disease (AD) is a growing neurodegenerative disease without effective treatments or therapies. Despite the use of different approaches and an extensive variety of genetic amyloid based models, therapeutic strategies remain elusive. AD is characterized by three main pathological hallmarks that include amyloid-β plaques, neurofibrillary tangles, and neuroinflammatory processes; however, many other pathological mechanisms have been described in the literature. Nonetheless, the study of the disease and the screening of potential therapies is heavily weighted toward the study of amyloid-β transgenic models. Non-transgenic models may aid in the study of complex pathological states and provide a suitable complementary alternative to evaluating therapeutic biomedical and intervention strategies. In this review, we evaluate the literature on non-transgenic alternatives, focusing on the use of these models for testing therapeutic strategies, and assess their contribution to understanding AD. This review aims to underscore the need for a shift in preclinical research on intervention strategies for AD from amyloid-based to alternative, complementary non-amyloid approaches.
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Affiliation(s)
- Julio A Flores-Cuadra
- Centro de Neurociencias, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panamá, República de Panamá
| | - Alanna Madrid
- Centro de Neurociencias, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panamá, República de Panamá
| | - Patricia L Fernández
- Centro de Biología Celular y Molecular de Enfermedades, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panamá, República de Panamá
| | - Ambar R Pérez-Lao
- Centro de Neurociencias, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panamá, República de Panamá
| | - Diana C Oviedo
- Centro de Neurociencias, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panamá, República de Panamá.,Escuela de Psicología, Facultad de Ciencias Sociales, Universidad Católica Santa María La Antigua (USMA), Panamá
| | - Gabrielle B Britton
- Centro de Neurociencias, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panamá, República de Panamá
| | - Maria B Carreira
- Centro de Neurociencias, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panamá, República de Panamá
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17
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Guo L, Cao JH, Wei TT, Li JH, Feng YK, Wang LP, Sun Y, Chai YR. Gallic acid attenuates thymic involution in the d-galactose induced accelerated aging mice. Immunobiology 2020; 225:151870. [DOI: 10.1016/j.imbio.2019.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 11/09/2019] [Accepted: 11/16/2019] [Indexed: 10/25/2022]
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18
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Hormigo S, Rodriguez-Lorenzana A, Castro-Salazar E, Millian-Morell L, López DE. Subchronic use of rivastigmine increases procognitive flexibility across multimodal behavioral tasks in healthy male rats. Behav Brain Res 2019; 376:112077. [PMID: 31499090 DOI: 10.1016/j.bbr.2019.112077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/07/2019] [Accepted: 07/07/2019] [Indexed: 01/09/2023]
Abstract
Rivastigmine (RVT) is a reversible inhibitor of cholinesterase approved worldwide for the treatment of cognitive dysfunctions, especially in Alzheimer's disease. Most previous pre-clinical studies have examined the effects of RVT treatment in a wide variety of pathological research models. Nonetheless, the effects of this drug on sensorimotor gating, memory, and learning tasks in healthy subjects remains unclear. In this study, we investigate the procognitive effects of RVT treatment in healthy rats through sensorimotor gating evaluations (measured as prepulse inhibition of the acoustic startle reflex), active avoidance learning, and spatial memory learning in a radial maze. There is an increase in the amplitude of the startle reflex in RVT-treated rats compared to the control groups, whereas the latency remained constant. Sensorimotor gating values were also incremented compared to those values from controls. In active avoidance, rats treated with RVT learned faster to successfully perform the task compared to controls, but afterwards all groups exhibited virtually identical results. During the sessions in the radial maze, RVT-treated rats committed fewer errors in both the working and reference memory compared to controls. All in all, our results support the hypothesis that RVT treatment may entail procognitive effects in healthy subjects.
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Affiliation(s)
- Sebastian Hormigo
- Institute for Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
| | - Alberto Rodriguez-Lorenzana
- Institute for Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, Spain; Escuela de Psicologia, Universidad de Las Americas; Quito, Ecuador
| | - E Castro-Salazar
- Institute for Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, Spain
| | - Lymarie Millian-Morell
- Institute for Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, Spain; Institute of Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | - Dolores E López
- Institute for Neuroscience of Castilla y León (INCYL), University of Salamanca, Salamanca, Spain; Institute of Biomedical Research of Salamanca (IBSAL), University of Salamanca, Salamanca, Spain; Department of Cell Biology and Pathology, University of Salamanca, Salamanca, Spain.
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Jeremy M, Gurusubramanian G, Roy VK. Vitamin D3 mediated regulation of steroidogenesis mitigates testicular activity in an aged rat model. J Steroid Biochem Mol Biol 2019; 190:64-75. [PMID: 30923019 DOI: 10.1016/j.jsbmb.2019.03.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/22/2019] [Accepted: 03/23/2019] [Indexed: 12/18/2022]
Abstract
Testicular aging leads to a decrease in spermatogenesis and steroidogenesis. Vitamin D plays an important role in reproduction by modulating testicular steroidogenesis. As the role of vitamin D3 in testicular steroidogenesis during aging has not been explored, the aim of this study was to evaluate the effects of vitamin D3 on testicular functions in d-gal-induced aged rats. Vitamin D3 treatment on d-gal-induced aged rats resulted in significant improvement in sperm parameters, histoarchitecture, serum testosterone, and rostenedione and estrogen levels. The results of both in vivo and in vitro studies showed that vitamin D3 directly regulates testicular steroidogenic markers. Vitamin D3 treatment also increased CYP19A1 and decreased AR expression in the testes of d-gal-induced aged and normal rats. These results suggest that estrogen-mediated action may be responsible for an improvement in spermatogenesis in aged testis. Furthermore, it may be suggested vitamin D3 has a protective role in the aged testis and unaffected spermatogenesis in normal rats treated with vitamin D3 could be due to a balance between estrogen and androgen action.
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Affiliation(s)
| | | | - Vikas Kumar Roy
- Department of Zoology, Mizoram University, Aizawl, Mizoram, 796 004, India.
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20
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Babic Perhoc A, Osmanovic Barilar J, Knezovic A, Farkas V, Bagaric R, Svarc A, Grünblatt E, Riederer P, Salkovic-Petrisic M. Cognitive, behavioral and metabolic effects of oral galactose treatment in the transgenic Tg2576 mice. Neuropharmacology 2018; 148:50-67. [PMID: 30571958 DOI: 10.1016/j.neuropharm.2018.12.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/13/2018] [Accepted: 12/14/2018] [Indexed: 12/23/2022]
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disorder associated with insulin resistance and glucose hypometabolism in the brain. Oral administration of galactose, a nutrient that provides an alternative source of energy, prevents and ameliorates early cognitive impairment in a streptozotocin-induced model (STZ-icv) of the sporadic AD (sAD). Here we explored the influence of 2-month oral galactose treatment (200 mg/kg/day) in the familial AD (fAD) by using 5- (5M) and 10- (10M) month-old transgenic Tg2576 mice mimicking the presymptomatic and the mild stage of fAD, and compared it to that observed in 7-month old STZ-icv rats mimicking mild-to-moderate sAD. Cognitive and behavioral performance was tested by Morris Water Maze, Open Field and Elevated Plus Maze tests, and metabolic status by intraperitoneal glucose tolerance test and fluorodeoxyglucose Positron-Emission Tomography scan. The level of insulin, glucagon-like peptide-1 (GLP-1) and soluble amyloid β1-42 (sAβ1-42) was measured by ELISA and the protein expression of insulin receptor (IR), glycogen synthase kinase-3β (GSK-3β), and pre-/post-synaptic markers by Western blot analysis. Although galactose normalized alterations in cerebral glucose metabolism in all Tg2576 mice (5M+2M; 10M+2M) and STZ-icv rats, it did not improve cognitive impairment in either model. Improvement of reduced grooming behavior and normalization in reduced plasma insulin levels were seen only in 5M+2M Tg2576 mice while in 10M+2M Tg2576 mice oral galactose induced metabolic exacerbation at the level of plasma insulin, GLP-1 homeostasis and glucose intolerance, and additionally increased hippocampal sAβ1-42 level, decreased IR expression and increased GSK-3β activity. The results indicate that therapeutic potential of oral galactose seems to depend on the stage and the type/model of AD and to differ in the absence and the presence of AD-like pathology.
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Affiliation(s)
- Ana Babic Perhoc
- Department of Pharmacology, University of Zagreb School of Medicine, Salata 11, HR-10 000, Zagreb, Croatia
| | - Jelena Osmanovic Barilar
- Department of Pharmacology, University of Zagreb School of Medicine, Salata 11, HR-10 000, Zagreb, Croatia
| | - Ana Knezovic
- Department of Pharmacology, University of Zagreb School of Medicine, Salata 11, HR-10 000, Zagreb, Croatia
| | - Vladimir Farkas
- Department of Experimental Physics, Rudjer Boskovic Institute, Bijenicka 54, HR-10 000, Zagreb, Croatia
| | - Robert Bagaric
- Department of Experimental Physics, Rudjer Boskovic Institute, Bijenicka 54, HR-10 000, Zagreb, Croatia
| | - Alfred Svarc
- Department of Experimental Physics, Rudjer Boskovic Institute, Bijenicka 54, HR-10 000, Zagreb, Croatia
| | - Edna Grünblatt
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland; Zurich Center for Integrative Human Physiology, University of Zurich, Switzerland
| | - Peter Riederer
- Center of Mental Health, Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital, Würzburg, Füchsleinstrasse 15, 97080, Würzburg, Germany; Department of Clinical Research and Psychiatry, University of Southern Denmark Odense, Odense, Denmark
| | - Melita Salkovic-Petrisic
- Department of Pharmacology, University of Zagreb School of Medicine, Salata 11, HR-10 000, Zagreb, Croatia; Research Centre of Excellence of Fundamental, Clinical and Translational Neuroscience, Croatian Institute for Brain Research, University of Zagreb School of Medicine, Salata 12, HR-10 000, Zagreb, Croatia.
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Partadiredja G, Karima N, Utami KP, Agustiningsih D, Sofro ZM. The Effects of Light and Moderate Intensity Exercise on the Femoral Bone and Cerebellum of d-Galactose-Exposed Rats. Rejuvenation Res 2018; 22:20-30. [PMID: 29962322 DOI: 10.1089/rej.2018.2050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Aging causes the degeneration of organs of the locomotor system, including the cerebellum and bones. Exercise may reverse this deterioration. d-galactose has been frequently used in rodents to accelerate aging. The present study aimed at investigating the effects of exercise on cerebellar and serum growth factors, motor activity, and the number of bone cells of the femoral head of d-galactose-treated rats. Twenty-four male Wistar rats were divided randomly into four groups, that is, three treated groups injected with 300 mg/(mL·kg) body weight (bw) d-galactose solution daily for 4 weeks, and a control group injected with normal saline. Following the 4-week administration of d-galactose solution, two of the treated groups performed light- (45% VO2max) and moderate- (55% VO2max) intensity exercise, by running on a treadmill 4 × a week for 4 weeks. Locomotor activity was examined in rotarod and open field tests. The cerebellar and serum Insulin-like Growth Factor 1 (IGF-1) and Brain-Derived Neurotrophic Factor (BDNF) levels were measured using enzyme-linked immunosorbent assay (ELISA). The number of osteoblasts and osteoclasts of femoral head was estimated using unbiased stereological methods. It was found that the number of osteoclasts was higher in the d-galactose-treated group than the normal control and moderate-intensity exercise groups. No significant difference between groups was found in the rotarod and open field test performance, IGF-1 and BDNF levels, as well as number of osteoblasts. In conclusion, a 4-week administration of high-dosed-galactose caused the increase of the number of osteoclasts. A subsequent 4-week moderate-intensity exercise reversed this increase to the normal level.
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Affiliation(s)
- Ginus Partadiredja
- 1 Department of Physiology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Nisa Karima
- 1 Department of Physiology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia.,2 Department of Biochemistry, Molecular Biology, and Physiology, Faculty of Medicine, Universitas Lampung, Bandar Lampung, Indonesia
| | - Kurnia Putri Utami
- 1 Department of Physiology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia.,3 Department of Physiotherapy, Faculty of Health Sciences, Universitas Muhammadiyah Malang, Malang, Indonesia
| | - Denny Agustiningsih
- 1 Department of Physiology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Zaenal Muttaqien Sofro
- 1 Department of Physiology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
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