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Effects of Postnatal Caffeine Exposure on Absence Epilepsy and Comorbid Depression: Results of a Study in WAG/Rij Rats. Brain Sci 2022; 12:brainsci12030361. [PMID: 35326317 PMCID: PMC8946037 DOI: 10.3390/brainsci12030361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/03/2022] [Accepted: 03/06/2022] [Indexed: 02/01/2023] Open
Abstract
The present study aims to investigate effect of early caffeine exposure on epileptogenesis and occurrence of absence seizures and comorbid depression in adulthood. For this purpose, Wistar Albino Glaxo from Rijswijk (WAG/Rij) rats were enrolled in a control and two experimental groups on the 7th day after the delivery. The rats in experimental groups received either 10 or 20 mg/kg caffeine subcutaneously while animals in control group had subcutaneous injections of 0.9% saline. The injections started at postnatal day 7 (PND7) and were continued each day for 5 days. At 6–7 months of age, electroencephalogram (EEG) recordings and behavioral recordings in the forced swimming test, sucrose consumption/preference test and locomotor activity test were carried out. At 6 months of age, 10 mg/kg and 20 mg/kg caffeine-treated WAG/Rij rats showed increased immobility latency and active swimming duration in forced swimming test when compared with the untreated controls. In addition, 20 mg/kg caffeine treatment decreased immobility time. In sucrose preference/consumption tests, WAG/Rij rats in 10 mg/kg caffeine group demonstrated higher sucrose consumption and preference compared to untreated controls. The rats treated with 20 mg/kg caffeine showed higher sucrose preference compared to control rats. The exploratory activity of rats in the 10 mg/kg caffeine-treated group was found to be higher than in the 20 mg/kg caffeine-treated and control groups in the locomotor activity test. At 7 months of age, caffeine-treated animals showed a decreased spike-wave discharge (SWD) number compared to the control animals. These results indicate that postnatal caffeine treatment may decrease the number of seizure and depression-like behaviors in WAG/Rij rats in later life. Caffeine blockade of adenosine receptors during the early developmental period may have beneficial effects in reducing seizure frequency and depression-like behaviors in WAG/Rij rat model.
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Eyolfson E, Bhatt D, Wang M, Lohman AW, Mychasiuk R. Paternal exposure to exercise and/or caffeine and alcohol modify offspring behavioral and pathophysiological recovery from repetitive mild traumatic brain injury in adolescence. GENES, BRAIN, AND BEHAVIOR 2021; 20:egbb12736. [PMID: 33876557 DOI: 10.1111/gbb.12736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/16/2021] [Accepted: 04/17/2021] [Indexed: 11/30/2022]
Abstract
Only recently has the scope of parental research expanded to include the paternal sphere with epidemiological studies implicating stress, nutrition and alcohol consumption in the neurobiological and behavioral characteristics of offspring. This study was designed to determine if paternal exposure to caffeine, alcohol and exercise prior to conception would improve or exacerbate offspring recovery from adolescent repetitive mild traumatic brain injury (RmTBI). Sires received 7 weeks of standard drinking water, or caffeine and ethanol and were housed in regular cages or cages with running wheels, prior to being mated to control females. At postnatal day 40, offspring were administered RmTBI or sham injuries and were assessed for post concussive symptomology. Post-mortem quantitative real-time polymerase chain reaction (qRT-PCR) was used to assess gene expression in the prefrontal cortex (PFC), nucleus accumbens (NAc) and changes in telomere length. Additionally, enzyme-linked immunosorbent assay (ELISA's) were run on serum to detect levels of cytokines, chemokines and sex hormones. Paternal experience did not improve or exacerbate RmTBI behavioral outcomes. However, female and male offspring displayed unique responses to RmTBI and paternal experience, resulting in changes in physical, behavioral and molecular outcomes. Injury and paternal exercise modified changes in female offspring, whereas male offspring were affected by paternal exercise, caffeine and alcohol treatment. Additionally, paternal experience and RmTBI modified expression of many genes in the PFC, NAc, telomere length and levels of sex hormones. Although further exploration is required to understand the heterogeneity that exists in disease risk and resiliency, this study provides corroborating evidence that paternal experiences prior to conception influences offspring development.
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Affiliation(s)
- Eric Eyolfson
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
| | - Dhyey Bhatt
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
- Department of Cell Biology and Anatomy, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Melinda Wang
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
| | - Alexander W Lohman
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
- Department of Cell Biology and Anatomy, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Richelle Mychasiuk
- Department of Psychology, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Victoria, Australia
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Kasala S, Briyal S, Prazad P, Ranjan AK, Stefanov G, Donovan R, Gulati A. Exposure to Morphine and Caffeine Induces Apoptosis and Mitochondrial Dysfunction in a Neonatal Rat Brain. Front Pediatr 2020; 8:593. [PMID: 33042927 PMCID: PMC7530195 DOI: 10.3389/fped.2020.00593] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/11/2020] [Indexed: 11/23/2022] Open
Abstract
Background: Preterm infants experience rapid brain growth during early post-natal life making them vulnerable to drugs acting on central nervous system. Morphine is administered to premature neonates for pain control and caffeine for apnea of prematurity. Simultaneous use of morphine and caffeine is common in the neonatal intensive care unit. Prior studies have shown acute neurotoxicity with this combination, however, little information is available on the mechanisms mediating the neurotoxic effects. The objective of this study was to determine the effects of morphine and caffeine, independently and in combination on mitochondrial dysfunction (Drp1 and Mfn2), neural apoptosis (Bcl-2, Bax, and cell damage) and endothelin (ET) receptors (ETA and ETB) in neonatal rat brain. Methods: Male and female rat pups were grouped separately and were divided into four different subgroups on the basis of treatments-saline (Control), morphine (MOR), caffeine (CAFF), and morphine + caffeine (M+C) treatment. Pups in MOR group were injected with 2 mg/kg morphine, CAFF group received 100 mg/kg caffeine, and M+C group received both morphine (2 mg/kg) and caffeine (100 mg/kg), subcutaneously on postnatal days (PND) 3-6. Pups were euthanized at PND 7, 14, or 28. Brains were isolated and analyzed for mitochondrial dysfunction, apoptosis markers, cell damage, and ET receptor expression via immunofluorescence and western blot analyses. Results: M+C showed a significantly higher expression of Bax compared to CAFF or MOR alone at PND 7, 14, 28 in female pups (p < 0.05) and at PND 7, 14 in male pups (p < 0.05). Significantly (p < 0.05) increased expression of Drp1, Bax, and suppressed expression of Mfn2, Bcl-2 at PND 7, 14, 28 in all the treatment groups compared to the control was observed in both genders. No significant difference in the expression of ETA and ETB receptors in male or female pups was seen at PND 7, 14, and 28. Conclusion: Concurrent use of morphine and caffeine during the first week of life increases apoptosis and cell damage in the developing brain compared to individual use of caffeine and morphine.
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Affiliation(s)
- Sweatha Kasala
- Division of Neonatology, Department of Pediatrics, Advocate Children's Hospital, Park Ridge, IL, United States
| | - Seema Briyal
- Chicago College of Pharmacy, Midwestern University, Downers Grove, IL, United States
| | - Preetha Prazad
- Division of Neonatology, Department of Pediatrics, Advocate Children's Hospital, Park Ridge, IL, United States
| | - Amaresh K Ranjan
- Chicago College of Pharmacy, Midwestern University, Downers Grove, IL, United States
| | - Gospodin Stefanov
- Division of Neonatology, Department of Pediatrics, Advocate Children's Hospital, Park Ridge, IL, United States
| | - Ramona Donovan
- Advocate Aurora Research Institute, Park Ridge, IL, United States
| | - Anil Gulati
- Chicago College of Pharmacy, Midwestern University, Downers Grove, IL, United States.,Pharmazz Inc. Research and Development, Willowbrook, IL, United States
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Wang J, Li CL, Tu BJ, Yang K, Mo TT, Zhang RY, Cheng SQ, Chen CZ, Jiang XJ, Han TL, Peng B, Baker PN, Xia YY. Integrated Epigenetics, Transcriptomics, and Metabolomics to Analyze the Mechanisms of Benzo[a]pyrene Neurotoxicity in the Hippocampus. Toxicol Sci 2019; 166:65-81. [PMID: 30085273 DOI: 10.1093/toxsci/kfy192] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Benzo[a]pyrene (B[a]P) is a common environmental pollutant that is neurotoxic to mammals, which can cause changes to hippocampal function and result in cognitive disorders. The mechanisms of B[a]P-induced impairments are complex .To date there have been no studies on the association of epigenetic, transcriptomic, and metabolomic changes with neurotoxicity after B[a]P exposure. In the present study, we investigated the global effect of B[a]P on DNA methylation patterns, noncoding RNAs (ncRNAs) expression, coding RNAs expression, and metabolites in the rat hippocampus. Male Sprague Dawley rats (SD rats) received daily gavage of B[a]P (2.0 mg/kg body weight [BW]) or corn oil for 7 weeks. Learning and memory ability was analyzed using the Morris water maze (MWM) test and change to cellular ultrastructure in the hippocampus was analyzed using electron microscope observation. Integrated analysis of epigenetics, transcriptomics, and metabolomics was conducted to investigate the effect of B[a]P exposure on the signaling and metabolic pathways. Our results suggest that B[a]P could lead to learning and memory deficits, likely as a result of epigenetic and transcriptomic changes that further affected the expression of CACNA1C, Tpo, etc. The changes in expression ultimately affecting LTP, tyrosine metabolism, and other important metabolic pathways.
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Affiliation(s)
- Jing Wang
- Department of Occupational and Environmental Hygiene, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Chun-Lin Li
- Department of Occupational and Environmental Hygiene, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Bai-Jie Tu
- Department of Occupational and Environmental Hygiene, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Kai Yang
- Chengdu Center for Disease Control & Prevention, Chengdu, China
| | - Ting-Ting Mo
- Department of Occupational and Environmental Hygiene, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Rui-Yuan Zhang
- Department of Occupational and Environmental Hygiene, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Shu-Qun Cheng
- Department of Occupational and Environmental Hygiene, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Cheng-Zhi Chen
- Department of Occupational and Environmental Hygiene, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Xue-Jun Jiang
- Department of Occupational and Environmental Hygiene, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
| | - Ting-Li Han
- China-Canada-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China.,The Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Bin Peng
- Department of Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Philip N Baker
- College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester LE1 9HN, UK
| | - Yin-Yin Xia
- Department of Occupational and Environmental Hygiene, School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China.,China-Canada-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
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Maeda T, Sekiguchi K, Wasada R, Ihara K. Caffeine not associated with irritable behaviour in very low-birth-weight infants. Early Hum Dev 2019; 137:104835. [PMID: 31473373 DOI: 10.1016/j.earlhumdev.2019.104835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/09/2019] [Accepted: 08/13/2019] [Indexed: 10/26/2022]
Abstract
This paper is an examination of irritable behaviour in very low-birth-weight infants in relation to caffeine or aminophylline. We assessed tremulous movement (a sub-score of General Movements Optimality Score) in 18 caffeine-treated subjects and 18 aminophylline-treated subjects. Caffeine, unlike aminophylline, was not associated with irritable behaviour at standard dose.
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Affiliation(s)
- Tomoki Maeda
- Department of Pediatrics, Oita University Faculty of Medicine, Oita, Japan.
| | - Kazuhito Sekiguchi
- Department of Pediatrics, Oita University Faculty of Medicine, Oita, Japan
| | - Rieko Wasada
- Department of Pediatrics, Oita University Faculty of Medicine, Oita, Japan
| | - Kenji Ihara
- Department of Pediatrics, Oita University Faculty of Medicine, Oita, Japan
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Ommati MM, Heidari R, Ghanbarinejad V, Abdoli N, Niknahad H. Taurine Treatment Provides Neuroprotection in a Mouse Model of Manganism. Biol Trace Elem Res 2019; 190:384-395. [PMID: 30357569 DOI: 10.1007/s12011-018-1552-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 10/15/2018] [Indexed: 12/11/2022]
Abstract
Manganese (Mn) is a trace element involved in many physiological processes. However, excessive Mn exposure leads to neurological complications. Although no precise mechanism(s) has been found for Mn-induced neurotoxicity, oxidative stress and mitochondrial injury seem to play a relevant role in this complication. On the other hand, there is no protective strategy against Mn neurotoxicity so far. Taurine is an amino acid with significant neuroprotective properties. The current study was designed to evaluate the effect of taurine supplementation and its potential mechanism(s) of action in a mouse model of manganism. Animals were treated with Mn (100 mg/kg, s.c) alone and/or in combination with taurine (50, 100, and 500 mg/kg, i.p, for eight consecutive days). Severe locomotor dysfunction along with a significant elevation in brain tissue biomarkers of oxidative stress was evident in Mn-exposed mice. On the other hand, it was revealed that mitochondrial indices of functionality were hampered in Mn-treated animals. Taurine supplementation (50, 100, and 500 mg/kg, i.p) alleviated Mn-induced locomotor deficit. Moreover, this amino acid mitigated oxidative stress biomarkers and preserved brain tissue mitochondrial indices of functionality. These data introduce taurine as a potential neuroprotective agent against Mn neurotoxicity. Antioxidative and mitochondria protecting effects of taurine might play a fundamental role in its neuroprotective properties against Mn toxicity.
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Affiliation(s)
- Mohammad Mehdi Ommati
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P. O. Box 158371345, Roknabad, Karafarin St., Shiraz, Fars, Iran
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P. O. Box 158371345, Roknabad, Karafarin St., Shiraz, Fars, Iran.
| | - Vahid Ghanbarinejad
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P. O. Box 158371345, Roknabad, Karafarin St., Shiraz, Fars, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Narges Abdoli
- Iran Food and Drug Administration (IFDA), Ministry of Health, Tehran, Iran
| | - Hossein Niknahad
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, P. O. Box 158371345, Roknabad, Karafarin St., Shiraz, Fars, Iran.
- Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
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Ommati MM, Heidari R, Ghanbarinejad V, Aminian A, Abdoli N, Niknahad H. The neuroprotective properties of carnosine in a mouse model of manganism is mediated via mitochondria regulating and antioxidative mechanisms. Nutr Neurosci 2019; 23:731-743. [PMID: 30856059 DOI: 10.1080/1028415x.2018.1552399] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objective(s): Manganese (Mn) is an essential trace element physiologically incorporated in the structure of several vital enzymes. Despite its essentiality, excessive Mn exposure is toxic with brain tissue as the primary target organ. There is no specific and clinically available therapeutic/preventive option against Mn neurotoxicity. Carnosine is a neuropeptide with several physiological roles. The neuroprotective properties of this peptide have been evaluated in different experimental models. The current study was designed to investigate the effect of carnosine supplementation and its potential mechanisms of action in an animal model of Mn-induced neurotoxicity. Materials and Methods: Male C57BL/6 mice received Mn (100 mg/kg, s.c) alone and/or in combination with carnosine (10, 50, and 100 mg/kg, i.p). Several locomotor activity indices were monitored. Moreover, biomarkers of oxidative stress and mitochondrial function were assessed in the brain tissue of Mn-exposed animals. Results: Significant locomotor dysfunction was revealed in Mn-exposed animals. Furthermore, brain tissue biomarkers of oxidative stress were significantly increased, and mitochondrial indices of functionality were impaired in Mn-treated animals. It was found that carnosine supplementation (10, 50, and 100 mg/kg, i.p) alleviated the Mn-induced locomotor deficit. Moreover, this peptide mitigated oxidative stress biomarkers and preserved brain tissue mitochondrial functionality in the animal model of manganism. Conclusion: These data indicate that carnosine is a potential neuroprotective agent against Mn neurotoxicity. Antioxidative and mitochondria protecting effects of carnosine might play a fundamental role in its neuroprotective properties against Mn toxicity.
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Affiliation(s)
- Mohammad Mehdi Ommati
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Bioinformatics, College of Life Sciences, Shanxi Agricultural University, Taigu, Peoples' Republic of China
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahid Ghanbarinejad
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmadreza Aminian
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Narges Abdoli
- Iran Food and Drug Administration (IFDA), Ministry of Health, Tehran, Iran
| | - Hossein Niknahad
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Pharmacology and Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Abu-Sa'da OS, Armstrong EA, Scott O, Shaw O, Nguyen AT, Shen K, Cheung PY, Baker G, Yager JY. The Effect of Caffeine on the Neuropathological and Neurobehavioral Outcome in the Newborn Rat. J Caffeine Adenosine Res 2018. [DOI: 10.1089/caff.2017.0036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Omar S. Abu-Sa'da
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
- Department of Neonatology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Edward A. Armstrong
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
- Faculty of Medicine and Dentistry, Centre for Neuroscience, University of Alberta, Edmonton, Canada
| | - Ori Scott
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Oriana Shaw
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Antoinette T. Nguyen
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
- Faculty of Medicine and Dentistry, Centre for Neuroscience, University of Alberta, Edmonton, Canada
| | - Keqin Shen
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
- Department of Pediatric Neurosciences, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Po-Yin Cheung
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
- Department of Neonatology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Glen Baker
- Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Jerome Y. Yager
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
- Faculty of Medicine and Dentistry, Centre for Neuroscience, University of Alberta, Edmonton, Canada
- Department of Pediatric Neurosciences, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
- Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
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Heidari R, Jamshidzadeh A, Ghanbarinejad V, Ommati MM, Niknahad H. Taurine supplementation abates cirrhosis-associated locomotor dysfunction. Clin Exp Hepatol 2018; 4:72-82. [PMID: 29904723 PMCID: PMC6000746 DOI: 10.5114/ceh.2018.75956] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 12/26/2017] [Indexed: 01/04/2023] Open
Abstract
AIM OF THE STUDY Hepatic encephalopathy and hyperammonemia is a clinical complication associated with liver cirrhosis. The brain is the target organ for ammonia toxicity. Ammonia-induced brain injury is related to oxidative stress, locomotor activity dysfunction, and cognitive deficit, which could lead to permanent brain injury, coma and death if not appropriately managed. There is no promising pharmacological intervention against cirrhosis-associated brain injury. Taurine (TAU) is one of the most abundant amino acids in the human body. Several physiological and pharmacological roles have been attributed to TAU. TAU may act as an antioxidant and is an excellent neuroprotective agent. This study aimed to evaluate the effect of TAU supplementation on cirrhosis-associated locomotor activity disturbances and oxidative stress in the brain. MATERIAL AND METHODS Rats underwent bile duct ligation (BDL) surgery, and plasma and brain ammonia level, plasma biochemical parameters, and rats' locomotor function were monitored. Furthermore, brain tissue markers of oxidative stress were assessed. RESULTS It was found that plasma and brain ammonia was increased, and markers of liver injury were significantly elevated in the cirrhotic group. Impaired locomotor activity was also evident in BDL rats. Moreover, an increase in brain tissue markers of oxidative stress was detected in the brain of cirrhotic animals. It was found that TAU supplementation (50, 100, and 200 mg/kg, gavage) alleviated brain tissue markers of oxidative stress and improved animals' locomotor activity. CONCLUSIONS These data suggest that TAU is a potential protective agent against cirrhosis-associated brain injury.
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Affiliation(s)
- Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Akram Jamshidzadeh
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahid Ghanbarinejad
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Mehdi Ommati
- Department of Animal Sciences, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Hossein Niknahad
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Ommati MM, Jamshidzadeh A, Niknahad H, Mohammadi H, Sabouri S, Heidari R, Abdoli N. N-acetylcysteine treatment blunts liver failure-associated impairment of locomotor activity. PHARMANUTRITION 2017. [DOI: 10.1016/j.phanu.2017.10.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Postnatal Subacute Benzo(a)Pyrene Exposure Caused Neurobehavioral Impairment and Metabolomic Changes of Cerebellum in the Early Adulthood Period of Sprague-Dawley Rats. Neurotox Res 2017; 33:812-823. [DOI: 10.1007/s12640-017-9832-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 10/16/2017] [Accepted: 10/18/2017] [Indexed: 11/26/2022]
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12
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A transient insulin system dysfunction in newborn rat brain followed by neonatal intracerebroventricular administration of streptozotocin could be accompanied by a labile cognitive impairment. Neurosci Res 2017; 132:17-25. [PMID: 29055675 DOI: 10.1016/j.neures.2017.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 09/16/2017] [Accepted: 10/06/2017] [Indexed: 01/22/2023]
Abstract
The early postnatal period is a critical period of hippocampus development, which is highly dependent on insulin receptor (IR) signaling and very important in cognitive function. The present study was conducted in order to present a model of neonatal transient brain insulin system dysfunction through finding an appropriate dose of injection of streptozotocin (STZ) during the neonatal period. Sixty male Wistar rat pups were divided into 4 groups of 15 and received intracerebroventricular saline or STZ (icv-STZ) (15, 20 and 25μg/kg) on postnatal day 7. Gene expression of IR and target genes for IR signaling (choline acetyltransferase (ChAT) and Tau) were measured at the ages of 2 and 7 weeks. Behavioral tests were performed at the ages of 3 and 6 weeks to assess short- and long-term cognitive function. 20μg/kg dose of icv-STZ was estimated as the optimal dose causing transient alteration in gene expression of IR, ChAT and Tau. Additionally, cognitive function of the animals restored to normal level at the age of 6 weeks. Therefore, 20μg/kg dose of icv-STZ is proposed as a new approach to generating transient brain insulin system dysfunction associated with transient cognitive impairments at a critical postnatal period of brain development.
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13
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Laureano-Melo R, da Silveira ALB, de Azevedo Cruz Seara F, da Conceição RR, da Silva-Almeida C, Marinho BG, da Rocha FF, Reis LC, Côrtes WDS. Behavioral profile assessment in offspring of Swiss mice treated during pregnancy and lactation with caffeine. Metab Brain Dis 2016; 31:1071-80. [PMID: 27262967 DOI: 10.1007/s11011-016-9847-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/25/2016] [Indexed: 11/26/2022]
Abstract
The association between caffeine consumption and various psychiatric manifestations has long been observed. The objective was to assess the behavioral profile in offspring of Swiss mice treated during pregnancy and lactation with caffeine. For this purpose, two groups (n = 6 each and BW ~ 35 g) of female mice were treated during pregnancy and lactation by: tap water and caffeine solution at a concentration of 0.3 mg/mL through oral route. The offspring obtained, by completing 70 days of life, was underwent a behavioral battery test. Statistical analysis was performed by student t test and the different significance adopted was p < 0.05. According to our results, it was not found any significant differences in tail suspension and forced swimming tests. In anxiety related responses however, the mice of caffeine group had greater number of fecal pellets (178 %, p = 0.001) in the open field test, higher number of attempts (51 %, p = 0.03) in light-dark box and decreased percentage of entries in open arms (41 %, p = 0.01) in elevated plus maze test. Moreover, in the marble burying test, there was a significant decrease in the number of buried marbles compared with controls (110 %, p = 0,002). In the meantime, in the von Frey test, it was observed an exacerbation of mechanical allodynia both in basal conditions and after the carrageenan administration (p < 0.001). Furthermore, caffeine treatment during pregnancy and lactation causes long-term behavioral changes in the mice offspring that manifest later in life.
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Affiliation(s)
- Roberto Laureano-Melo
- Multicenter Graduate Program in Physiological Sciences, Brazilian Physiological Society, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 30, Seropedica, 23897-000, Rio de Janeiro, Brazil
| | - Anderson Luiz Bezerra da Silveira
- Multicenter Graduate Program in Physiological Sciences, Brazilian Physiological Society, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 30, Seropedica, 23897-000, Rio de Janeiro, Brazil
- Department of Physical Education, Institute of Education, Federal Rural University of Rio de Janeiro, BR 465, Km 7, 23897-000, Seropédica, Rio de Janeiro, Brazil
| | - Fernando de Azevedo Cruz Seara
- Graduate Program in Physiological Sciences, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 01, Seropedica, 23897-000, Rio de Janeiro, Brazil
| | - Rodrigo Rodrigues da Conceição
- Multicenter Graduate Program in Physiological Sciences, Brazilian Physiological Society, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 30, Seropedica, 23897-000, Rio de Janeiro, Brazil
| | - Cláudio da Silva-Almeida
- Multicenter Graduate Program in Physiological Sciences, Brazilian Physiological Society, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 30, Seropedica, 23897-000, Rio de Janeiro, Brazil
| | - Bruno Guimarães Marinho
- Multicenter Graduate Program in Physiological Sciences, Brazilian Physiological Society, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 30, Seropedica, 23897-000, Rio de Janeiro, Brazil
- Graduate Program in Physiological Sciences, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 01, Seropedica, 23897-000, Rio de Janeiro, Brazil
| | - Fábio Fagundes da Rocha
- Multicenter Graduate Program in Physiological Sciences, Brazilian Physiological Society, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 30, Seropedica, 23897-000, Rio de Janeiro, Brazil
- Graduate Program in Physiological Sciences, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 01, Seropedica, 23897-000, Rio de Janeiro, Brazil
| | - Luís Carlos Reis
- Multicenter Graduate Program in Physiological Sciences, Brazilian Physiological Society, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 30, Seropedica, 23897-000, Rio de Janeiro, Brazil
- Graduate Program in Physiological Sciences, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 01, Seropedica, 23897-000, Rio de Janeiro, Brazil
| | - Wellington da Silva Côrtes
- Multicenter Graduate Program in Physiological Sciences, Brazilian Physiological Society, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 30, Seropedica, 23897-000, Rio de Janeiro, Brazil.
- Graduate Program in Physiological Sciences, Institute of Biological and Health Sciences, Department of Physiological Sciences, Federal Rural University of Rio de Janeiro, BR 465, Km 7, PQ Room 01, Seropedica, 23897-000, Rio de Janeiro, Brazil.
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Maeda T, Inoue M, Sekiguchi K, Ihara K. Aminophylline-associated irritable behaviour in preterm neonates. Early Hum Dev 2016; 99:37-41. [PMID: 27390110 DOI: 10.1016/j.earlhumdev.2016.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 03/17/2016] [Accepted: 04/11/2016] [Indexed: 10/21/2022]
Abstract
AIM This study investigated the effect of aminophylline on behaviour and autonomic function in the preterm period. METHOD Subjects were preterm infants cared for in the Oita University hospital from August 2012 to October 2014. The group that was administered aminophylline (Am+) and the group that received no aminophylline (Am-) included 11 cases that exhibited a mean gestational age of 28weeks 5days and a mean birth weight of 1109g and 8 cases that exhibited a mean gestational age of 30weeks 5days and a mean birth weight of 1223g, respectively. Intravenous aminophylline was administered continuously at a dose of 4-6mg/kg/day followed by oral therapy when the infant suffered repetitive apnoea. Two-hour video recordings were obtained every 2weeks, and electrocardiograms were performed simultaneously. Onset-offset and tremulous movements in general movement (GM) optimality list were used as indices of behaviour. Autonomic functions were investigated via heart-rate and heart-rate variability measurements using frequency domain spectral analysis and the MemCalc method. We compared indices in 4 periods: 30-31, 32-33, 34-35 and 36-37weeks gestation. RESULTS The Am+ group exhibited significantly low optimality of tremulous movements at 32-33weeks gestation. The autonomic parameters did not differ significantly between the Am+ and Am- groups. There was no significant correlation between GMs optimality score and serum theophylline concentration. CONCLUSION Aminophylline administration was associated with transient irritable behaviour without autonomic changes in the preterm period.
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Affiliation(s)
- Tomoki Maeda
- Department of Pediatrics and Child Neurology, Oita University Faculty of Medicine, Oita, Japan.
| | - Masanori Inoue
- Department of Pediatrics and Child Neurology, Oita University Faculty of Medicine, Oita, Japan
| | - Kazuhito Sekiguchi
- Department of Pediatrics and Child Neurology, Oita University Faculty of Medicine, Oita, Japan
| | - Kenji Ihara
- Department of Pediatrics and Child Neurology, Oita University Faculty of Medicine, Oita, Japan
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Zagorchev P, Apostolova E, Kokova V, Peychev L. Activation of KCNQ channels located on the skeletal muscle membrane by retigabine and its influence on the maximal muscle force in rat muscle strips. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2016; 389:439-46. [PMID: 26815201 DOI: 10.1007/s00210-016-1211-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 01/14/2016] [Indexed: 10/22/2022]
Abstract
Retigabine is a new antiepileptic drug with the main mechanism of action: activation of voltage-gated potassium channels (Kv7) represented in many tissues including the excitable cells-neuronal and muscular. The aim of this article is to determine the role of potassium channels located on the skeletal muscle membrane in the in vivo and in vitro reduction of muscle contractile activity induced by retigabine. We studied the effects of retigabine on the motor function in vivo using a bar holding test and exploratory activity using open field test in rats. Electrical field stimulation (EFS) was applied to skeletal muscle strips in vitro in order to evaluate muscular activity. We registered a significant decrease in the muscle tone and exploratory activity of rats, treated orally with 60 mg/kg bw retigabine. In vitro experiments showed decrease in the maximal muscle force of strips in the presence of retigabine in the medium after both indirect (nerve-like) and direct (muscle-like) stimulation. The effects were fully antagonized by XE-991 (Kv7 channel blocker), which supports our hypothesis about the relation between these types of potassium channels and the observed change in the muscle force. Based on these results, we can conclude that skeletal muscle Kv7 channels play a significant role in the myorelaxation and reduced muscle force registered after treatment with Kv7 channels openers (e.g., retigabine). The hyperpolarization of skeletal muscle membrane caused by accelerated K(+) efflux may be the underlying cause for the effect of retigabine on the muscle tone.
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Affiliation(s)
- P Zagorchev
- Department of Biophysics, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4000, Plovdiv, Bulgaria
| | - E Apostolova
- Department of Pharmacology and Drug Toxicology, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4000, Plovdiv, Bulgaria.
| | - V Kokova
- Department of Pharmacology and Drug Toxicology, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4000, Plovdiv, Bulgaria
| | - L Peychev
- Department of Pharmacology and Drug Toxicology, Faculty of Pharmacy, Medical University-Plovdiv, Vasil Aprilov Str. 15A, 4000, Plovdiv, Bulgaria
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16
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Rao Barkur R, Bairy LK. Comparison of the developmental milestones and preweaning neurobehavioral parameters in rat pups exposed to lead (Pb) during gestation, lactation and pregestation period. Drug Chem Toxicol 2015; 39:248-55. [DOI: 10.3109/01480545.2015.1082136] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Rajashekar Rao Barkur
- Department of Biochemistry, Melaka Manipal Medical College, Manipal University, Manipal, India and
| | - Laxminarayana K. Bairy
- Department of Pharmacology, Kasturba Medical College, Manipal University, Manipal, India
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Prophylactic treatment with melatonin before recurrent neonatal seizures: Effects on long-term neurobehavioral changes and the underlying expression of metabolism-related genes in rat hippocampus and cerebral cortex. Pharmacol Biochem Behav 2015; 133:25-30. [PMID: 25818576 DOI: 10.1016/j.pbb.2015.03.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 03/09/2015] [Accepted: 03/16/2015] [Indexed: 11/22/2022]
Abstract
Although it has been suggested that the protective effect of melatonin against seizure-induced neurotoxicity involves inhibition of neuronal lipid peroxidation, current data concerning the exact molecular mechanism are still limited. This study was undertaken to investigate the changes in neurobehavioral, cognitive and lipid metabolism-related gene expressions in both hippocampus and cerebral cortex of rats subjected to recurrent neonatal seizures, and the effects of melatonin treatment before seizure (55mg/kg, 1mg/ml). 6-day-old (P6) SD rats were randomly divided into four groups of control (CONT, the same below), melatonin treated control (Mel), recurrent neonatal seizure (RS) and melatonin and RS combination treatment (Mel+RS). Neurological behavioral parameters of brain damage (plane righting reflex, negative geotaxis reaction reflex, Cliff avoidance reflex, forelimb suspension reflex) were observed on P31. Morris water maze test was performed during P29-P35. Then the protein levels of ACAT1, Cathepsin-E and Ca(2+)/calmodulin-dependent protein kinase II (CAMK II) in hippocampus and cerebral cortex were detected by western blot method. As expected, RS group showed a significant delay or reduce of the four reflexes, as well as bad performance in the Morris water maze test. Flurothyl-induced neurobehavioral toxicology was blocked by pre-treatment with melatonin. In parallel with these behavioral changes, gene expression by western blot method demonstrated that rats pretreated with melatonin (Mel+RS) showed a significant down-regulated expression of ACAT-1, Cathepsin-E and up-regulated CAMK II in hippocampus and cerebral cortex when compared with RS group. Our findings provide support for ACAT-1/Cathepsin-E as well as CaMK II being potential targets for the treatment of neonatal seizure-induced brain damage by melatonin.
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18
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Maitre NL, Chan J, Stark AR, Lambert WE, Aschner JL, Key AP. Effects of caffeine treatment for apnea of prematurity on cortical speech-sound differentiation in preterm infants. J Child Neurol 2015; 30:307-13. [PMID: 24939976 PMCID: PMC4269579 DOI: 10.1177/0883073814538500] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Caffeine, standard treatment for apnea of prematurity, improves brainstem auditory processing. We hypothesized that caffeine also improves cortical differentiation of complex speech sounds. We used event-related potential methodology to measure responses to speech-sound contrasts in 45 intensive care neonates, stratified by cumulative exposure as no-, low-, and high-caffeine groups. Sound differentiation in the low-caffeine group and near-term no-caffeine infants was similar with repeated measures analysis of variance controlling for gestational and postnatal age. However, a generalized estimating equation approach demonstrated that, at equivalent postnatal age, differentiation was reduced in the high-caffeine (gestational age 25 weeks) compared to the low-caffeine group (gestational age 28 weeks), reflecting the importance of maturity at birth (Z = 2.77, P < .006). We conclude that caffeine improves measures of auditory processing associated with improved neurodevelopmental outcomes in preterm infants. However, current usage of caffeine for apnea of prematurity cannot fully compensate for the effects of brain immaturity on speech sound processing.
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Affiliation(s)
- Nathalie L Maitre
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA Department of Physical Medicine and Rehabilitation, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jeremy Chan
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Ann R Stark
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Warren E Lambert
- Kennedy Center for Research on Human Development & Department of Hearing and Speech Sciences, Vanderbilt University, Nashville, TN, USA
| | - Judy L Aschner
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Alexandra P Key
- Kennedy Center for Research on Human Development & Department of Hearing and Speech Sciences, Vanderbilt University, Nashville, TN, USA
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Tchekalarova JD, Kubová H, Mareš P. Early caffeine exposure: transient and long-term consequences on brain excitability. Brain Res Bull 2014; 104:27-35. [PMID: 24727007 DOI: 10.1016/j.brainresbull.2014.04.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 03/29/2014] [Accepted: 04/01/2014] [Indexed: 02/07/2023]
Abstract
The influence of pre- and postnatal caffeine treatment on brain excitability during development and adulthood is reviewed. Pre- and postnatal exposure to caffeine induces sex- and age-specific long-term neurochemical alterations in the brain and the behavior of rodents. Because adenosine neuromodulation is closely related to the regulation of brain excitability the increased expression in adenosine receptor system due to neonatal caffeine treatment should cause transient and permanent changes in seizure susceptibility. So far, findings have been focused on primarily developmental changes of the brain adenosine modulatory system and have demonstrated that the alterations are not restricted to a single brain region. Neurobehavioral changes and the anticonvulsant effect of early caffeine exposure are dependent on the caffeine dose, developmental stage of exposure and age of testing. Although outcomes of caffeine treatment are still a matter of debate, our review raise questions concerning the impact of early caffeine treatment on regulation of seizure susceptibility during development and adulthood.
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Affiliation(s)
- Jana D Tchekalarova
- Institute of Neurobiology, Acad. G. Bonchev Str., Bl. 23, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria.
| | - Hana Kubová
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Pavel Mareš
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
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20
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Tchekalarova J, Kubová H, Mareš P. Effects of caffeine on cortical epileptic afterdischarges in adult rats are modulated by postnatal treatment. Acta Neurol Belg 2013; 113:493-500. [PMID: 23864335 DOI: 10.1007/s13760-013-0233-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2012] [Accepted: 07/08/2013] [Indexed: 11/29/2022]
Abstract
We have previously shown that the effect of acute caffeine injection on cortical epileptic afterdischarges (ADs) in immature rats can be modulated by the postnatal period of repeated caffeine treatment and age of testing during development. To know if these changes persist into adulthood, in the present study adult rats, previously exposed to caffeine from postnatal day 7-11 (10 and 20 mg/kg), and injected with caffeine (10 and 20 mg/kg), respectively, at P67 were compared with groups of naive rats on cortical epileptic ADs. Low-frequency stimulation of sensorimotor cortical area was applied repeatedly with increasing intensity of stimulation current. The acute caffeine injection decreased the thresholds for both the spike-and-wave ADs and accompanying clonic seizures in naive adult rats. In contrast, the acute caffeine administration applied to rats with postnatal caffeine treatment did not change the thresholds for ADs and clonic seizures. In addition, a shorter duration of ADs was registered at some stimulation intensities in rats with early postnatal caffeine administration. Present results demonstrated failure of proconvulsant effects of caffeine after repeated caffeine administration during the early postnatal period persisting up to adulthood.
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Affiliation(s)
- Jana Tchekalarova
- Institute of Neurobiology, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 23, 1113, Sofia, Bulgaria,
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21
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Porciúncula LO, Sallaberry C, Mioranzza S, Botton PHS, Rosemberg DB. The Janus face of caffeine. Neurochem Int 2013; 63:594-609. [PMID: 24055856 DOI: 10.1016/j.neuint.2013.09.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 09/04/2013] [Accepted: 09/06/2013] [Indexed: 12/20/2022]
Abstract
Caffeine is certainly the psychostimulant substance most consumed worldwide. Over the past years, chronic consumption of caffeine has been associated with prevention of cognitive decline associated to aging and mnemonic deficits of brain disorders. While its preventive effects have been reported extensively, the cognitive enhancer properties of caffeine are relatively under debate. Surprisingly, there are scarce detailed ontogenetic studies focusing on neurochemical parameters related to the effects of caffeine during prenatal and earlier postnatal periods. Furthermore, despite the large number of epidemiological studies, it remains unclear how safe is caffeine consumption during pregnancy and brain development. Thus, the purpose of this article is to review what is currently known about the actions of caffeine intake on neurobehavioral and adenosinergic system during brain development. We also reviewed other neurochemical systems affected by caffeine, but not only during brain development. Besides, some recent epidemiological studies were also outlined with the control of "pregnancy signal" as confounding variable. The idea is to tease out how studies on the impact of caffeine consumption during brain development deserve more attention and further investigation.
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Affiliation(s)
- Lisiane O Porciúncula
- Laboratório de Estudos sobre o Sistema Purinérgico, Departamento de Bioquímica/ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-anexo, Porto Alegre/RS, Brazil.
| | - Cássia Sallaberry
- Laboratório de Estudos sobre o Sistema Purinérgico, Departamento de Bioquímica/ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-anexo, Porto Alegre/RS, Brazil
| | - Sabrina Mioranzza
- Laboratório de Estudos sobre o Sistema Purinérgico, Departamento de Bioquímica/ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-anexo, Porto Alegre/RS, Brazil
| | - Paulo Henrique S Botton
- Laboratório de Estudos sobre o Sistema Purinérgico, Departamento de Bioquímica/ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-anexo, Porto Alegre/RS, Brazil
| | - Denis B Rosemberg
- Laboratório de Estudos sobre o Sistema Purinérgico, Departamento de Bioquímica/ICBS, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600-anexo, Porto Alegre/RS, Brazil; Laboratório de Genética e Ecotoxicologia Molecular, Programa de Pós-graduação em Ciências Ambientais, Área de Ciências Exatas e Ambientais, Universidade Comunitária da Região de Chapecó. Avenida Senador Attílio Fontana, 591E, 89809-000 Chapecó/SC, Brazil
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22
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Infante SK, Rea HC, Perez-Polo JR. Transgenerational effects of neonatal hypoxia-ischemia in progeny. Int J Dev Neurosci 2013; 31:398-405. [PMID: 23470326 DOI: 10.1016/j.ijdevneu.2013.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 02/06/2013] [Accepted: 02/12/2013] [Indexed: 10/27/2022] Open
Abstract
Neonatal hypoxia-ischemia (HI) affects 60% of low birth weight infants and up to 40% of preterm births. Cell death and brain injury after HI have been shown to cause long-lasting behavioral deficits. By using a battery of behavioral tests on second generation 3-week-old rodents, we found that neonatal HI is associated with behavioral outcomes in the progeny of HI-affected parents. Our results suggest an epigenetic transfer mechanism of some of the neurological symptoms associated with neonatal HI. Elucidating the transfer of brain injury to the next generation after HI calls attention to the risks associated with HI injury and the need for proper treatment to reverse these effects. Assessing the devastating extent of HI's reach serves as a cautionary tale to the risks associated with neonatal HI, and provides an incentive to create improved therapeutic measures to treat HI.
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Affiliation(s)
- Smitha K Infante
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, United States
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23
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Chen C, Tang Y, Jiang X, Qi Y, Cheng S, Qiu C, Peng B, Tu B. Early postnatal benzo(a)pyrene exposure in Sprague-Dawley rats causes persistent neurobehavioral impairments that emerge postnatally and continue into adolescence and adulthood. Toxicol Sci 2011; 125:248-61. [PMID: 21984485 DOI: 10.1093/toxsci/kfr265] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Previous studies have demonstrated that benzo(a)pyrene (BaP) may disrupt the development of key biological systems, thus leaving children more vulnerable to functional impairments in adulthood. The current study was conducted to determine whether neurotoxic effects of postnatal BaP exposure on behavioral performance persist in juvenile and young adult stages. Therefore, neonate Sprague-Dawley pups were given oral doses of BaP (0.02, 0.2, and 2 mg/kg/day) continuing through a period of rapid brain development (on postnatal days [PNDs] 5-11). Further, developmental milestones and behavioral endpoints assessing sensory and motor maturation were examined. Also, in this study, Morris water maze and elevated plus maze were used for evaluating the cognitive function and anxiety-like behavior. Our results showed that there was altered ontogeny in a few measures of neuromotor development; however, other developmental milestones and sensory responses were not altered significantly. Moreover, the locomotor activity deficit in BaP-treated pups was evident at PND 36 and was most pronounced in the PND 69. Also, exposure to BaP during early postnatal development had an adverse effect on adult rats (PND 70) in the elevated plus maze, and the swim maze suggests that low doses of BaP impair spatial learning functions at adult test period. In contrast, BaP exposure had no evident effect on behaviors in these two mazes for adolescent animals. These data clearly indicate that behavioral impairments resulting from postnatal BaP exposure are potentially long-lasting and may not be apparent in juveniles, but are present in young adulthood.
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Affiliation(s)
- Chengzhi Chen
- Department of Occupational and Environmental Medicine, School of Public Health, Chongqing Medical University, Chongqing 400016, PR China
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Hughes RN. Neurobehavioral Consequences of Exposure to Caffeine During Development: Important Issues and Areas of Concern. JOURNAL OF CAFFEINE RESEARCH 2011. [DOI: 10.1089/jcr.2011.1206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Robert N. Hughes
- Department of Psychology, University of Canterbury, Christchurch, New Zealand
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25
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Tchekalarova J, Kubová H, Mareš P. Postnatal period of caffeine treatment and time of testing modulate the effect of acute caffeine on cortical epileptic afterdischarges in rats. Brain Res 2010; 1356:121-9. [DOI: 10.1016/j.brainres.2010.07.107] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2010] [Revised: 07/30/2010] [Accepted: 07/31/2010] [Indexed: 12/15/2022]
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Ferrari DC, Nesic OB, Perez-Polo JR. Oxygen resuscitation does not ameliorate neonatal hypoxia/ischemia-induced cerebral edema. J Neurosci Res 2010; 88:2056-65. [PMID: 20143414 DOI: 10.1002/jnr.22358] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Neonatal hypoxia/ischemia (HI) is a common cause of cognitive and behavioral deficits in children with hyperoxia treatment (HHI) being the current therapy for newborn resuscitation. HI induces cerebral edema that is associated with poor neurological outcomes. Our objective was to characterize cerebral edema after HI and determine the consequences of HHI (40% or 100% O(2)). Dry weight analyses showed cerebral edema 1 to 21 days after HI in the ipsilateral cortex; and 3 to 21 days after HI in the contralateral cortex. Furthermore, HI increased blood-brain barrier (BBB) permeability 1 to 7 days after HI, leading to bilateral cortical vasogenic edema. HHI failed to prevent HI-induced increase in BBB permeability and edema development. At the molecular level, HI increased ipsilateral, but not contralateral, AQP4 cortical levels at 3 and up to 21 days after HI. HHI treatment did not further affect HI-induced changes in AQP4. In addition, we observed developmental increases of AQP4 accompanied by significant reduction in water content and increase permeability of the BBB. Our results suggest that the ipsilateral HI-induced increase in AQP4 may be beneficial and that its absence in the contralateral cortex may account for edema formation after HI. Finally, we showed that HI induced impaired motor coordination 21 days after the insult and HHI did not ameliorate this behavioral outcome. We conclude that HHI treatment is effective as a resuscitating therapy, but does not ameliorate HI-induced cerebral edema and impaired motor coordination.
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Affiliation(s)
- Diana Carolina Ferrari
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch at Galveston, 301 University Boulevard, Galveston, TX 77555-1072, USA
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Effects of early postnatal caffeine exposure on seizure susceptibility of rats are age- and model-dependent. Epilepsy Res 2010; 88:231-8. [PMID: 20034762 DOI: 10.1016/j.eplepsyres.2009.11.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Revised: 11/16/2009] [Accepted: 11/29/2009] [Indexed: 12/20/2022]
Abstract
Repeated caffeine treatment during early postnatal period led to a decreased sensitivity to convulsant action of drugs interfering with inhibitory systems. To know if it is a general effect we studied convulsant action of agonists of glutamate receptors N-methyl-d-aspartate (NMDA) and kainic acid (KA). Early (the first day after the last injection) and delayed (at postnatal day (P) 25) consequences of daily administration of caffeine at P7-P11 or P13-P17 days were studied. Two doses (one submaximal and one supramaximal) of either drug were chosen for each age group on the basis of our older data demonstrating decreasing sensitivity during postnatal development. Both early and delayed proconvulsant effects of submaximal doses of either agonist were observed in P7-P11 groups, early effect was markedly expressed; the effects of the supramaximal doses were not affected. The other administration group (P13-P17) also exhibited an increased sensitivity to convulsant action but delayed effects were more pronounced than early consequences especially with supramaximal doses of both agonists. In contrast to a decreased sensitivity to drugs suppressing inhibitory systems, seizures induced by glutamate receptor agonists are potentiated in caffeine-treated immature rats. Timing of caffeine administration and interval between the last exposure and testing play an important role.
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Tchekalarova J, Kubová H, Mareš P. Postnatal caffeine treatment affects differently two pentylenetetrazol seizure models in rats. Seizure 2009; 18:463-9. [DOI: 10.1016/j.seizure.2009.04.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2008] [Revised: 02/13/2009] [Accepted: 04/03/2009] [Indexed: 10/20/2022] Open
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Soellner DE, Grandys T, Nuñez JL. Chronic prenatal caffeine exposure impairs novel object recognition and radial arm maze behaviors in adult rats. Behav Brain Res 2009; 205:191-9. [PMID: 19686781 DOI: 10.1016/j.bbr.2009.08.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2009] [Revised: 08/10/2009] [Accepted: 08/12/2009] [Indexed: 11/19/2022]
Abstract
In this report, we demonstrate that chronic prenatal exposure to a moderate dose of caffeine disrupts novel object recognition and radial arm maze behaviors in adult male and female rats. Pregnant dams were administered either tap water or 75 mg/L caffeinated tap water throughout gestation. Oral self-administration in the drinking water led to an approximate maternal intake of 10mg/kg/day, equivalent to 2-3 cups of coffee/day in humans based on a metabolic body weight conversion. In adulthood, the offspring underwent testing on novel object recognition, radial arm maze, and Morris water maze tasks. Prenatal caffeine exposure was found to impair 24-h memory retention in the novel object recognition task and impair both working and reference memory in the radial arm maze. However, prenatal caffeine exposure did not alter Morris water maze performance in either a simple water maze procedure or in an advanced water maze procedure that included reversal and working memory paradigms. These findings demonstrate that chronic oral intake of caffeine throughout gestation can alter adult cognitive behaviors in rats.
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Affiliation(s)
- Deborah E Soellner
- Neuroscience Program, Michigan State University, East Lansing, MI 48824, USA.
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Picard N, Guénin S, Larnicol N, Perrin Y. Maternal caffeine ingestion during gestation and lactation influences respiratory adaptation to acute alveolar hypoxia in newborn rats and adenosine A2A and GABAA receptor mRNA transcription. Neuroscience 2008; 156:630-9. [DOI: 10.1016/j.neuroscience.2008.07.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2008] [Revised: 06/19/2008] [Accepted: 07/17/2008] [Indexed: 10/21/2022]
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Black AM, Pandya S, Clark D, Armstrong EA, Yager JY. Effect of caffeine and morphine on the developing pre-mature brain. Brain Res 2008; 1219:136-42. [DOI: 10.1016/j.brainres.2008.04.066] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Revised: 04/13/2008] [Accepted: 04/17/2008] [Indexed: 11/16/2022]
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Björklund O, Kahlström J, Salmi P, Ögren SO, Vahter M, Chen JF, Fredholm BB, Daré E. The effects of methylmercury on motor activity are sex- and age-dependent, and modulated by genetic deletion of adenosine receptors and caffeine administration. Toxicology 2007; 241:119-33. [DOI: 10.1016/j.tox.2007.08.092] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2007] [Revised: 07/15/2007] [Accepted: 08/17/2007] [Indexed: 11/24/2022]
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Tchekalarova J, Kubová H, Mares P. Effects of postnatal caffeine exposure on seizure susceptibility in developing rats. Brain Res 2007; 1150:32-9. [PMID: 17439812 DOI: 10.1016/j.brainres.2006.10.035] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Revised: 10/07/2006] [Accepted: 10/20/2006] [Indexed: 11/22/2022]
Abstract
Postnatal caffeine treatment of rats can influence brain excitability during development. To study the mechanism involved in the alterations of seizure susceptibility, we used an animal model that corresponds to the infants treated with caffeine for apnea of prematurity. Seizure susceptibility to four convulsant drugs (pentetrazol, picrotoxin, bicuculline and aminophylline) was assessed in 12- and 25-day-old rats exposed to caffeine at a daily dose of 10 and/or 20 mg/kg s.c. at postnatal days 7-11. Our results demonstrated that the changes in generalized tonic-clonic seizures (GTCS) are more expressed than changes in minimal clonic seizures. There are marked differences among individual convulsants with the highest sensitivity of aminophylline-induced seizures and nearly complete resistance of bicuculline-induced seizures. The changes in individual models are age specific: aminophylline- and picrotoxin-induced seizures are more affected in 12- than in 25-day-old rats whereas PTZ-induced seizures are more changed by early postnatal caffeine exposure in 25- than in 12-day-old animal. Taken together, repeated caffeine treatment from postnatal day 7 to 11 reduces the seizure susceptibility during development and this reduction is also model specific.
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Affiliation(s)
- Jana Tchekalarova
- Institute of Physiology, Acad. G. Bonchev Stir., Bal. 23, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria.
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Thonhoff JR, Jordan PM, Karam JR, Bassett BL, Wu P. Identification of early disease progression in an ALS rat model. Neurosci Lett 2007; 415:264-8. [PMID: 17280785 PMCID: PMC1876693 DOI: 10.1016/j.neulet.2007.01.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2006] [Revised: 01/10/2007] [Accepted: 01/12/2007] [Indexed: 11/24/2022]
Abstract
Transgenic rat models of amyotrophic lateral sclerosis (ALS) have recently been developed. Most assays of ALS-symptoms in these models monitor disease onset accurately, but do not identify individuals that will develop these symptoms before the motor deficits become apparent. Peak bodyweight has recently been shown to indicate affected individuals before motor deficits become apparent. However, it must be determined retrospectively due to weight fluctuation. Here, we report that exploratory activities detected by a photobeam activity system (PAS) and wire mesh ascending test can be used to detect slight motor deficits in the early phase of ALS. Thus, these tests may be used in addition to peak bodyweight to monitor early disease progression and to assay efficacy of new therapeutic interventions.
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Affiliation(s)
- Jason R. Thonhoff
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX
| | - Paivi M. Jordan
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX
| | - Joseph R. Karam
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX
| | - Brandon L. Bassett
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX
| | - Ping Wu
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX
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Tchekalarova J, Kubová H, Mares P. Biphasic effect of chronic postnatal caffeine treatment on cortical epileptic afterdischarges during ontogeny in rats. Brain Res 2006; 1082:43-9. [PMID: 16516171 DOI: 10.1016/j.brainres.2006.01.067] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2005] [Revised: 01/11/2006] [Accepted: 01/17/2006] [Indexed: 10/25/2022]
Abstract
EEG and motor phenomena elicited by stimulation of sensorimotor cortex were used to study the effects of chronic postnatal administration of caffeine (10 and 20 mg/kg, s.c. from P7 to P11) in rats. Rhythmic electrical stimulation was applied to 12-, 18-, 25- and 67-day-old rats with implanted electrodes. Animals with the higher dose of caffeine exhibited increased thresholds for elicitation of stimulation-bound movements, spike-and-wave afterdischarges (ADs) and clonic seizures accompanying these ADs at the age of 12 days and decreased duration of spike-and-wave ADs at postnatal days (P) 18 and 25. In contrast, chronic administration of the lower dose of caffeine resulted in a proconvulsant effect expressed as a significant prolongation of spike-and-wave ADs in P12, P18 and P25 groups as well as of the second "limbic" type of ADs (significant only in P12 and P25). The biphasic action of chronic postnatal caffeine treatment was transient and was no longer present in 67-day-old rats. Our results demonstrate that early postnatal caffeine exposure results in either pro- or anticonvulsant effect during brain maturation in relation to the dose used. Caffeine is a mixed adenosine receptor antagonist, therefore its effects could be due to a different action on adenosine receptor subtypes; an additional mechanism of action cannot be excluded.
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Affiliation(s)
- Jana Tchekalarova
- Laboratory of Experimental Psychopharmacology, Institute of Physiology, Acad. G. Bonchev Str., Bl. 23, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria.
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