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Harriott AM, Waruinge A, Appiah-Danquah V, Berhanu L, Morais A, Ayata C. The effect of sex and estrus cycle stage on optogenetic spreading depression induced migraine-like pain phenotypes. J Headache Pain 2023; 24:85. [PMID: 37464297 PMCID: PMC10355061 DOI: 10.1186/s10194-023-01621-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 06/26/2023] [Indexed: 07/20/2023] Open
Abstract
BACKGROUND Migraine is more prevalent in females, raising the possibility that sex and gonadal hormones modulate migraine. We recently demonstrated that minimally invasive optogenetic spreading depolarization (opto-SD) elicits robust periorbital allodynia. The objective of this study was to test the hypothesis that opto-SD induced migraine-like pain behavior is worse in females and varies during the estrus cycle. METHODS Single or repeated opto-SDs were induced in male and female adult Thy1-ChR2-YFP transgenic mice. Von Frey monofilaments were used to test periorbital mechanical allodynia. Mouse grimace was also examined under increasing light intensity to quantify spontaneous discomfort and light-aversive behavior. Vaginal smears were obtained for estrus cycle staging at the end of behavioral testing. RESULTS A multi-variable regression analysis was performed using a male and female cohort to test the effect of independent variables on periorbital allodynia. Opto-SD predicted lower periorbital thresholds as compared with sham stimulation (p < 0.0001). Additionally, female sex predicted lower periorbital thresholds compared with males (p = 0.011). There were significant interactions between opto-SD and time (interaction p = 0.030) as animals tended to recover from opto-SD allodynia over time, and between sex and time (p = 0.020) as females tended to take longer to recover. Proestrus, estrus (PE) and metestrus, diestrus (MD) stages were combined to represent high versus low circulating estradiol relative to progesterone, respectively. Multi-variable regression revealed an effect of estrus cycle (p = 0.015) on periorbital thresholds. In the sham group, PE had lower thresholds than MD. However, there was no interaction between opto-SD and the estrus cycle (p = 0.364). Grimace scores were also examined at incremental light intensities. There was an effect of opto-SD (p < 0.0001), light intensity (p = 0.001) and estrus cycle (p = 0.024) on grimace without interaction among them (three-way ANOVA). CONCLUSIONS Female sex and estrus stages with high circulating estradiol relative to progesterone lower trigeminal pain thresholds and augment photosensitivity. In females, opto-SD increased pain behavior and photosensitivity irrespective of the estrus stage.
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Affiliation(s)
- Andrea M Harriott
- Neurovascular Research Laboratory, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA.
- Department of Neurology, Neurovascular Research Laboratory, Massachusetts General Hospital, Boston, MA, USA.
| | | | | | - Leah Berhanu
- Cambridge Rindge and Latin School, Boston, MA, USA
| | - Andreia Morais
- Neurovascular Research Laboratory, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Cenk Ayata
- Neurovascular Research Laboratory, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
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2
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Spekker E, Bohár Z, Fejes-Szabó A, Szűcs M, Vécsei L, Párdutz Á. Estradiol Treatment Enhances Behavioral and Molecular Changes Induced by Repetitive Trigeminal Activation in a Rat Model of Migraine. Biomedicines 2022; 10:biomedicines10123175. [PMID: 36551931 PMCID: PMC9776064 DOI: 10.3390/biomedicines10123175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
A migraine is a neurological condition that can cause multiple symptoms. It is up to three times more common in women than men, thus, estrogen may play an important role in the appearance attacks. Its exact pathomechanism is still unknown; however, the activation and sensitization of the trigeminal system play an essential role. We aimed to use an animal model, which would better illustrate the process of repeated episodic migraine attacks to reveal possible new mechanisms of trigeminal pain chronification. Twenty male (M) and forty ovariectomized (OVX) female adult rats were used for our experiment. Male rats were divided into two groups (M + SIF, M + IS), while female rats were divided into four groups (OVX + SIF, OVX + IS, OVX + E2 + SIF, OVX + E2 + IS); half of the female rats received capsules filled with cholesterol (OVX + SIF, OVX + IS), while the other half received a 1:1 mixture of cholesterol and 17β-estradiol (OVX + E2 + SIF, OVX + E2 + IS). The animals received synthetic interstitial fluid (SIF) (M + SIF, OVX + SIF, OVX + E2 + SIF) or inflammatory soup (IS) (M + IS, OVX + IS, OVX + E2 + IS) treatment on the dural surface through a cannula for three consecutive days each week (12 times in total). Behavior tests and immunostainings were performed. After IS application, a significant decrease was observed in the pain threshold in the M + IS (0.001 < p < 0.5), OVX + IS (0.01 < p < 0.05), and OVX + E2 + IS (0.001 < p < 0.05) groups compared to the control groups (M + SIF; OVX + SIF, OVX + E2 + SIF). The locomotor activity of the rats was lower in the IS treated groups (M + IS, 0.01 < p < 0.05; OVX + IS, p < 0.05; OVX + E2 + IS, 0.001 < p < 0.05), and these animals spent more time in the dark room (M + IS, p < 0.05; OVX + IS, 0.01 < p < 0.05; OVX + E2 + IS, 0.001 < p < 0.01). We found a significant difference between M + IS and OVX + E2 + IS groups (p < 0.05) in the behavior tests. Furthermore, IS increased the area covered by calcitonin gene-related peptide (CGRP) immunoreactive (IR) fibers (M + IS, p < 0.01; OVX + IS, p < 0.01; OVX + E2 + IS, p < 0.001) and the number of neuronal nitric oxide synthase (nNOS) IR cells (M + IS, 0.001< p < 0.05; OVX + IS, 0.01 < p < 0.05; OVX + E2 + IS, 0.001 < p < 0.05) in the caudal trigeminal nucleus (TNC). There was no difference between M + IS and OVX + IS groups; however, the area was covered by CGRP IR fibers (0.01 < p < 0.05) and the number of nNOS IR cells was significantly higher in the OVX + E2 + IS (p < 0.05) group than the other two IS- (M + IS, OVX + IS) treated animals. Overall, repeated administration of IS triggers activation and sensitization processes and develops nociceptive behavior changes. CGRP and nNOS levels increased significantly in the TNC after IS treatments, and moreover, pain thresholds and locomotor activity decreased with the development of photophobia. In our model, stable high estradiol levels proved to be pronociceptive. Thus, repeated trigeminal activation causes marked behavioral changes, which is more prominent in rats treated with estradiol, also reflected by the expression of the sensitization markers of the trigeminal system.
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Affiliation(s)
- Eleonóra Spekker
- ELKH-SZTE Neuroscience Research Group, University of Szeged, Semmelweis u. 6, H-6725 Szeged, Hungary
| | - Zsuzsanna Bohár
- ELKH-SZTE Neuroscience Research Group, University of Szeged, Semmelweis u. 6, H-6725 Szeged, Hungary
| | - Annamária Fejes-Szabó
- ELKH-SZTE Neuroscience Research Group, University of Szeged, Semmelweis u. 6, H-6725 Szeged, Hungary
| | - Mónika Szűcs
- Department of Medical Physics and Informatics, University of Szeged, Korányi Fasor 9, H-6720 Szeged, Hungary
| | - László Vécsei
- ELKH-SZTE Neuroscience Research Group, University of Szeged, Semmelweis u. 6, H-6725 Szeged, Hungary
- Department of Neurology, Interdisciplinary Excellence Centre, Albert Szent-Györgyi Medical School, University of Szeged, H-6725 Szeged, Hungary
- Correspondence: ; Tel.: +36-62-545-351; Fax: +36-62-545-597
| | - Árpád Párdutz
- Department of Neurology, Interdisciplinary Excellence Centre, Albert Szent-Györgyi Medical School, University of Szeged, H-6725 Szeged, Hungary
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3
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Hormonal influences in migraine - interactions of oestrogen, oxytocin and CGRP. Nat Rev Neurol 2021; 17:621-633. [PMID: 34545218 DOI: 10.1038/s41582-021-00544-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/16/2021] [Indexed: 02/07/2023]
Abstract
Migraine is ranked as the second highest cause of disability worldwide and the first among women aged 15-49 years. Overall, the incidence of migraine is threefold higher among women than men, though the frequency and severity of attacks varies during puberty, the menstrual cycle, pregnancy, the postpartum period and menopause. Reproductive hormones are clearly a key influence in the susceptibility of women to migraine. A fall in plasma oestrogen levels can trigger attacks of migraine without aura, whereas higher oestrogen levels seem to be protective. The basis of these effects is unknown. In this Review, we discuss what is known about sex hormones and their receptors in migraine-related areas in the CNS and the peripheral trigeminovascular pathway. We consider the actions of oestrogen via its multiple receptor subtypes and the involvement of oxytocin, which has been shown to prevent migraine attacks. We also discuss possible interactions of these hormones with the calcitonin gene-related peptide (CGRP) system in light of the success of anti-CGRP treatments. We propose a simple model to explain the hormone withdrawal trigger in menstrual migraine, which could provide a foundation for improved management and therapy for hormone-related migraine in women.
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4
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Maba IK, Cruz JV, Zampronio AR. Change in prostaglandin signaling during sickness syndrome hyperalgesia after ovariectomy in female rats. Behav Brain Res 2021; 410:113368. [PMID: 34000337 DOI: 10.1016/j.bbr.2021.113368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/26/2022]
Abstract
The present study investigated hyperalgesia during sickness syndrome in female rats. Hyperalgesia was induced by an intraperitoneal injection of lipopolysaccharide (LPS) or an intracerebroventricular injection of prostaglandin E2 (PGE2). No differences were found in basal mechanical and thermal thresholds or in LPS-induced hyperalgesia in sham-operated animals in the diestrus or proestrus phase or in ovariectomized (OVX) animals. However, higher levels of PGE2 where found in the cerebrospinal fluid of OVX animals compared to sham-operated females. Intracerebroventricular injection of PGE2 produced rapid mechanical hyperalgesia in sham-operated rats while these responses were observed at later times in OVX animals. The protein kinase A (PKA) inhibitor H-89 reduced mechanical PGE2-induced hyperalgesia in OVX female rats, whereas no effect was observed in sham-operated animals. In contrast, the exchange protein activated by cyclic adenosine monophosphate (cAMP; Epac) inhibitor ESI-09 reduced mechanical PGE2-induced hyperalgesia, whereas no effect was observed in OVX animals. PGE2 also induced thermal hyperalgesia in sham-operated and OVX female rats and a similar effect of ESI-09 was observed. These results suggest that PGE2-induced hyperalgesia that is observed during sickness syndrome has different signaling mechanisms in cycling and OVX female rats involving the activation of the cAMP-Epac or cAMP-PKA pathways, respectively.
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Affiliation(s)
- I K Maba
- Department of Pharmacology, Biological Sciences Section, Federal University of Paraná, Curitiba, PR, Brazil
| | - J V Cruz
- Department of Pharmacology, Biological Sciences Section, Federal University of Paraná, Curitiba, PR, Brazil
| | - A R Zampronio
- Department of Pharmacology, Biological Sciences Section, Federal University of Paraná, Curitiba, PR, Brazil.
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5
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Al-Hassany L, Haas J, Piccininni M, Kurth T, Maassen Van Den Brink A, Rohmann JL. Giving Researchers a Headache - Sex and Gender Differences in Migraine. Front Neurol 2020; 11:549038. [PMID: 33192977 PMCID: PMC7642465 DOI: 10.3389/fneur.2020.549038] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/10/2020] [Indexed: 12/26/2022] Open
Abstract
Migraine is a common neurovascular disorder affecting ~15% of the general population. Ranking second in the list of years lived with disability (YLD), people living with migraine are greatly impacted by this especially burdensome primary headache disorder. In ~30% of individuals with migraine, transient neurological symptoms occur (migraine aura) that further increase migraine burden. However, migraine burden is differential with respect to sex. Though one-year prevalences in childhood are similar, starting with puberty, migraine incidence increases at a much higher rate in females than males. Thus, migraine over the life course occurs in women three to four times more often than in men. Attacks are also more severe in women, leading to greater disability and a longer recovery period. The sex disparity in migraine is believed to be partly mediated through fluctuations in ovarian steroid hormones, especially estrogen and progesterone, although the exact mechanisms are not yet completely understood. The release of the neuropeptide calcitonin gene-related peptide (CGRP), followed by activation of the trigeminovascular system, is thought to play a key role in the migraine pathophysiology. Given the burden of migraine and its disproportionate distribution, the underlying cause(s) for the observed differences between sexes in the incidence, frequency, and intensity of migraine attacks must be better understood. Relevant biological as well as behavioral differences must be taken into account. To evaluate the scope of the existing knowledge on the issue of biological sex as well as gender differences in migraine, we conducted a systematized review of the currently available research. The review seeks to harmonize existing knowledge on the topic across the domains of biological/preclinical, clinical, and population-level research, which are traditionally synthesized and interpreted in isolation. Ultimately, we identify knowledge gaps and set priorities for further interdisciplinary and informed research on sex and gender differences as well as gender-specific therapies in migraine.
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Affiliation(s)
- Linda Al-Hassany
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Jennifer Haas
- Institute of Public Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Marco Piccininni
- Institute of Public Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Tobias Kurth
- Institute of Public Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Antoinette Maassen Van Den Brink
- Division of Vascular Medicine and Pharmacology, Department of Internal Medicine, Erasmus MC University Medical Center, Rotterdam, Netherlands
| | - Jessica L Rohmann
- Institute of Public Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
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6
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Jardim NS, Müller SG, Sari MHM, Nogueira CW. Females are more susceptible than male mice to thermal hypernociceptive behavior induced by early-life bisphenol-A exposure: Effectiveness of diphenyl diselenide. Eur J Pharmacol 2020; 879:173156. [PMID: 32360838 DOI: 10.1016/j.ejphar.2020.173156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 03/17/2020] [Accepted: 04/23/2020] [Indexed: 01/09/2023]
Abstract
Humans are ubiquitously exposed to bisphenol A (BPA), one of the most used synthetic monomers for manufacturing polycarbonate plastics. BPA exposure leads to abnormal nociceptive perception and neuroinflammation in rodents. This study investigated whether diphenyl diselenide (PhSe)2, a pleiotropic selenium-containing molecule, would be effective against the hypernociceptive behavior induced by the early-life BPA exposure to mice. Three-week-old male and female Swiss mice received intragastrically BPA (5 mg/kg) from 21st to 60th postnatal day. After, the mice received by the intragastric route (PhSe)2 (1 mg/kg) once a day for seven days. After the last day of treatment, the mice performed the hot plate and tail immersion tests. The cerebral cortex samples were used to determine the levels of proteins related to apoptosis and inflammation. The results demonstrated that females were more susceptible than male mice to thermal hypernociception induced by early-life exposure to BPA. (PhSe)2 was effective against the reduction in the latency to paw and tail withdrawal induced by BPA exposure in female mice. Furthermore, (PhSe)2 restored the impairment in the levels of inflammatory proteins (COX-2, IL-1β, and p-JNK/JNK) but not those of apoptosis in the cerebral cortex of female mice exposed to BPA. Collectively, these data showed that females were more susceptible to thermal hypernociceptive behavior induced by early-life exposure to BPA than male mice. The administration of (PhSe)2 reduced thermal hypernociceptive behavior, a sex independent effect, in BPA-exposed mice. (PhSe)2 modulated inflammatory protein levels in the cerebral cortex of female mice exposed to BPA.
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Affiliation(s)
- Natália S Jardim
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
| | - Sabrina G Müller
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
| | - Marcel H M Sari
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
| | - Cristina W Nogueira
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil.
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7
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Abstract
The techniques and protocols to modify the mouse genome described in this volume allow researchers to produce genetic models of a remarkable number and breadth of human disease. The generation of gene-modified mice offers profoundly powerful approaches for bringing known or purported human gene disruptions into mouse models, but the degree to which the resultant mutant mouse recapitulates the complex physiological and behavioral features of the human disease state is a key variable in the ultimate usefulness of the mouse model organism. Accordingly, the behavioral characterization of mice with novel targeted gene mutations is an important initial step in determining the potential impact of a novel mouse model. This chapter addresses strategies useful in the initial observations of the animal that assist in directing the choice of secondary tests to assess more detailed aspects of potentially disrupted behaviors that may be relevant to the disease being modeled. An initial standardized, comprehensive screen that assesses general health, reflexes, and sensorimotor functions is the first step in characterizing behavioral phenotype, and results often suggest areas where more complex complementary behavioral assays may reveal more detailed disruption of normal behavior. This sequential, standardized approach reduces variability between subjects; this chapter also addresses approaches to reducing experimental artifacts due to handling, test order, testing facility environment, and other sources. This brief overview of behavioral phenotyping approaches is intended to provide practical information to streamline initial characterization of new mouse models and maximize the usefulness of efforts to use these models to study human health and disease.
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Affiliation(s)
- Kenneth E McCarson
- Department of Pharmacology, Toxicology, and Therapeutics, Kansas Intellectual and Developmental Disabilities Research Center, University of Kansas Medical Center, Kansas City, KS, USA.
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8
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Ferroni P, Barbanti P, Della-Morte D, Palmirotta R, Jirillo E, Guadagni F. Redox Mechanisms in Migraine: Novel Therapeutics and Dietary Interventions. Antioxid Redox Signal 2018; 28:1144-1183. [PMID: 28990418 DOI: 10.1089/ars.2017.7260] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
SIGNIFICANCE Migraine represents the third most prevalent and the seventh most disabling human disorder. Approximately 30% of migraine patients experience transient, fully reversible, focal neurological symptoms (aura) preceding the attack. Recent Advances: Awareness of the hypothesis that migraine actually embodies a spectrum of illnesses-ranging from episodic to chronic forms-is progressively increasing and poses novel challenges for clarifying the underlying pathophysiological mechanisms of migraine as well as for the development of novel therapeutic interventions. Several theories have evolved to the current concept that a combination of genetic, epigenetic, and environmental factors may play a role in migraine pathogenesis, although their relative importance is still being debated. CRITICAL ISSUES One critical issue that deserves a particular attention is the role of oxidative stress in migraine. Indeed, potentially harmful oxidative events occur during the migraine attack and long-lasting or frequent migraine episodes may increase brain exposure to oxidative events that can lead to chronic transformation. Moreover, a wide variety of dietary, environmental, physiological, behavioral, and pharmacological migraine triggers may act through oxidative stress, with clear implications for migraine treatment and prophylaxis. Interestingly, almost all current prophylactic migraine agents exert antioxidant effects. FUTURE DIRECTIONS Increasing awareness of the role of oxidative stress and/or decreased antioxidant defenses in migraine pathogenesis and progression to a chronic condition lays the foundations for the design of novel prophylactic approaches, which, by reducing brain oxidative phenomena, could favorably modify the clinical course of migraine. Antioxid. Redox Signal. 28, 1144-1183.
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Affiliation(s)
- Patrizia Ferroni
- 1 Department of Human Sciences and Quality of Life Promotion, San Raffaele Roma Open University , Rome, Italy .,2 IRCCS San Raffaele Pisana , Rome, Italy
| | - Piero Barbanti
- 3 Headache and Pain Unit, Department of Neurological, Motor and Sensorial Sciences, IRCCS San Raffaele Pisana , Rome, Italy
| | - David Della-Morte
- 1 Department of Human Sciences and Quality of Life Promotion, San Raffaele Roma Open University , Rome, Italy .,2 IRCCS San Raffaele Pisana , Rome, Italy .,4 Department of Systems Medicine, University of Rome "Tor Vergata ," Rome, Italy
| | - Raffaele Palmirotta
- 5 Department of Biomedical Sciences and Human Oncology, "A. Moro" University , Bari, Italy
| | - Emilio Jirillo
- 6 Department of Basic Medical Sciences, Neuroscience and Sensory Organs, "A. Moro" University , Bari, Italy
| | - Fiorella Guadagni
- 1 Department of Human Sciences and Quality of Life Promotion, San Raffaele Roma Open University , Rome, Italy .,2 IRCCS San Raffaele Pisana , Rome, Italy
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9
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Kunkler PE, Zhang L, Johnson PL, Oxford GS, Hurley JH. Induction of chronic migraine phenotypes in a rat model after environmental irritant exposure. Pain 2018; 159:540-549. [PMID: 29200178 PMCID: PMC5812801 DOI: 10.1097/j.pain.0000000000001124] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Air pollution is linked to increased emergency department visits for headache and migraine patients frequently cite chemicals or odors as headache triggers, but the association between air pollutants and headache is not well understood. We previously reported that chronic environmental irritant exposure sensitizes the trigeminovascular system response to nasal administration of environmental irritants. Here, we examine whether chronic environmental irritant exposure induces migraine behavioral phenotypes. Male rats were exposed to acrolein, a transient receptor potential channel ankyrin-1 (TRPA1) agonist, or room air by inhalation for 4 days before meningeal blood flow measurements, periorbital cutaneous sensory testing, or other behavioral testing. Touch-induced c-Fos expression in trigeminal nucleus caudalis was compared in animals exposed to room air or acrolein. Spontaneous behavior and olfactory discrimination was examined in open-field testing. Acrolein inhalation exposure produced long-lasting potentiation of blood flow responses to a subsequent TRPA1 agonist and sensitized cutaneous responses to mechanical stimulation. C-Fos expression in response to touch was increased in trigeminal nucleus caudalis in animals exposed to acrolein compared with room air. Spontaneous activity in an open-field and scent preference behavior was different in acrolein-exposed compared with room air-exposed animals. Sumatriptan, an acute migraine treatment blocked acute blood flow changes in response to TRPA1 or transient receptor potential vanilloid receptor-1 agonists. Pretreatment with valproic acid, a prophylactic migraine treatment, attenuated the enhanced blood flow responses observed after acrolein inhalation exposures. Environmental irritant exposure yields an animal model of chronic migraine in which to study mechanisms for enhanced headache susceptibility after chemical exposure.
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Affiliation(s)
- Phillip Edward Kunkler
- Department of Biochemistry and Molecular Biology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202
| | - LuJuan Zhang
- Department of Biochemistry and Molecular Biology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Philip Lee Johnson
- Department of Anatomy and Cell Biology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Gerry Stephen Oxford
- Department of Pharmacology and Toxicology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202
| | - Joyce Harts Hurley
- Department of Biochemistry and Molecular Biology, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202
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McCarson KE, Winter MK, Abrahamson DR, Berman NE, Smith PG. Assessing complex movement behaviors in rodent models of neurological disorders. Neurobiol Learn Mem 2018; 165:106817. [PMID: 29476821 DOI: 10.1016/j.nlm.2018.02.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 02/12/2018] [Accepted: 02/20/2018] [Indexed: 01/24/2023]
Abstract
Behavioral phenotyping is a crucial step in validating animal models of human disease. Most traditional behavioral analyses rely on investigator observation of animal subjects, which can be confounded by inter-observer variability, scoring consistency, and the ability to observe extremely rapid, small, or repetitive movements. Force-Plate Actimeter (FPA)-based assessments can quantify locomotor activity and detailed motor activity with an incredibly rich data stream that can reveal details of movement unobservable by the naked eye. This report describes four specific examples of FPA analysis of behavior that have been useful in specific rat or mouse models of human neurological disease, which show how FPA analysis can be used to capture and quantify specific features of the complex behavioral phenotypes of these animal models. The first example quantifies nociceptive behavior of the rat following injection of formalin into the footpad as a common model of persistent inflammatory pain. The second uses actimetry to quantify intense, rapid circling behaviors in a transgenic mouse that overexpresses human laminin α5, a basement membrane protein. The third example assesses place preference behaviors in a rat model of migraine headache modeling phonophobia and photophobia. In the fourth example, FPA analysis revealed a unique movement signature emerged with age in a digenic mutant mouse model of Tourette Syndrome. Taken together, these approaches demonstrate the power and usefulness of the FPA in the examination and quantification of minute details of motor behaviors, greatly expanding the scope and detail of behavioral phenotyping of preclinical models of human disease.
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Affiliation(s)
- Kenneth E McCarson
- Kansas Intellectual and Developmental Disabilities Research Center, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA; Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA.
| | - Michelle K Winter
- Kansas Intellectual and Developmental Disabilities Research Center, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA
| | - Dale R Abrahamson
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA
| | - Nancy E Berman
- Kansas Intellectual and Developmental Disabilities Research Center, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA; Department of Anatomy and Cell Biology, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA
| | - Peter G Smith
- Kansas Intellectual and Developmental Disabilities Research Center, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA; Department of Molecular and Integrative Physiology, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160, USA
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11
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Estrogen and DPP4 inhibitor, but not metformin, exert cardioprotection via attenuating cardiac mitochondrial dysfunction in obese insulin-resistant and estrogen-deprived female rats. Menopause 2018; 23:894-902. [PMID: 27326818 DOI: 10.1097/gme.0000000000000640] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Cardiac function was markedly compromised in obese insulin-resistant and estrogen-deprived rats. Metformin and dipeptidyl peptidase-4 inhibitor (vildagliptin) were reported to improve cardiac function in insulin-resistant rats. Their effects on the heart under estrogen-deprived conditions are, however, unknown. Therefore, the effects of metformin, vildagliptin, and estrogen on the cardiac function in estrogen-deprived insulin-resistant female rats were investigated. METHODS Bilateral ovariectomized female rats (n = 48) were divided to be fed with either a normal diet (ND) or a high-fat diet (HFD) for 12 weeks. Then, both ND- and HFD-fed groups were subdivided to receive a vehicle, estrogen (50 μg/kg), metformin (30 mg/kg), or vildagliptin (3 mg/kg) for 4 weeks (n = 6/group). Heart rate variability, echocardiography, metabolic and biochemical parameters, cardiac function, and mitochondrial function were determined. Sham-operated female rats (n = 6) were used as a control. RESULTS Both ND- and HFD-fed ovariectomized rats developed insulin resistance, depressed heart rate variability, and decreased cardiac contractility. Although treatment with metformin, vildagliptin, and estrogen improved metabolic status and cardiac function, only estrogen and vildagliptin improved diastolic blood pressure and left ventricular ±dP/dt, and also reduced mitochondrial impairment, apoptosis, and oxidative stress in HD-fed ovariectomized rats. CONCLUSIONS Treatment with estrogen and vildagliptin provided more beneficial effects in the inhibition of oxidative stress, apoptosis, and cardiac mitochondrial dysfunction, and preserved cardiac contractile performance in estrogen-deprived insulin-resistant female rats.
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Eidlitz-Markus T, Zeharia A. Younger Age of Migraine Onset in Children Than Their Parents: A Retrospective Cohort Study. J Child Neurol 2018; 33:92-97. [PMID: 29246099 DOI: 10.1177/0883073817739197] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Migraine is known to run in families and has long been considered a strongly heritable disorder. We sought to investigate the age of onset of migraine between successive generations. Our retrospective cohort included 102 children with migraine who were referred to a pediatric headache clinic and their affected parent(s). Age at migraine onset was significantly lower in the children with a history of maternal or paternal migraine than in their mothers or fathers ( P < .001). In conclusion, data on parental history of migraine showed that children with migraine were significantly younger at first appearance of the disease than their affected parents.
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Affiliation(s)
- Tal Eidlitz-Markus
- 1 Pediatric Headache Clinic, Day Hospitalization Department, Schneider Children's Medical Center of Israel, Petach Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Avraham Zeharia
- 1 Pediatric Headache Clinic, Day Hospitalization Department, Schneider Children's Medical Center of Israel, Petach Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Sandweiss AJ, Cottier KE, McIntosh MI, Dussor G, Davis TP, Vanderah TW, Largent-Milnes TM. 17-β-Estradiol induces spreading depression and pain behavior in alert female rats. Oncotarget 2017; 8:114109-114122. [PMID: 29371973 PMCID: PMC5768390 DOI: 10.18632/oncotarget.23141] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 11/26/2017] [Indexed: 01/17/2023] Open
Abstract
AIMS Test the putative contribution of 17-β-estradiol in the development of spreading depression (SD) events and head pain in awake, non-restrained rats. MAIN METHODS Female, Sprague-Dawley rats were intact or underwent ovariectomy followed one week later by surgery to place electrodes onto the dura to detect epidural electroencephalographic activity (dEEG). dEEG activity was recorded two days later for 12 hours after systemic administration of 17-β-estradiol (180 μg/kg, i.p.). A separate set of rats were observed for changes in exploratory, ambulatory, fine, and rearing behaviors; periorbital allodynia was also assessed. KEY FINDINGS A bolus of 17-β-estradiol significantly elevated serum estrogen levels, increased SD episodes over a 12-hour recording period and decreased rearing behaviors in ovariectomized rats. Pre-administration of ICI 182,780, an estrogen receptor antagonist, blocked 17-β-estradiol-evoked SD events and pain behaviors; similar results were observed when the antimigraine therapeutic sumatriptan was used. SIGNIFICANCE These data indicate that an estrogen receptor-mediated mechanism contributes to SD events in ovariectomized rats and pain behaviors in both ovariectomized -and intact- rats. This suggests that estrogen plays a different role in each phenomenon of migraine where intense fluctuations in concentration may influence SD susceptibility. This is the first study to relate estrogen peaks to SD development and pain behaviors in awake, freely moving female rats, establishing a framework for future preclinical migraine studies.
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Affiliation(s)
- Alexander J. Sandweiss
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Karissa E. Cottier
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Mary I. McIntosh
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Gregory Dussor
- School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, Texas 75080, USA
| | - Thomas P. Davis
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Todd W. Vanderah
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
| | - Tally M. Largent-Milnes
- Department of Pharmacology, College of Medicine, University of Arizona, Tucson, Arizona 85724, USA
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Borkum JM. Migraine Triggers and Oxidative Stress: A Narrative Review and Synthesis. Headache 2015; 56:12-35. [PMID: 26639834 DOI: 10.1111/head.12725] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2015] [Indexed: 01/01/2023]
Abstract
BACKGROUND Blau theorized that migraine triggers are exposures that in higher amounts would damage the brain. The recent discovery that the TRPA1 ion channel transduces oxidative stress and triggers neurogenic inflammation suggests that oxidative stress may be the common denominator underlying migraine triggers. OBJECTIVE The aim of this review is to present and discuss the available literature on the capacity of common migraine triggers to generate oxidative stress in the brain. METHODS A Medline search was conducted crossing the terms "oxidative stress" and "brain" with "alcohol," "dehydration," "water deprivation," "monosodium glutamate," "aspartame," "tyramine," "phenylethylamine," "dietary nitrates," "nitrosamines," "noise," "weather," "air pollutants," "hypoglycemia," "hypoxia," "infection," "estrogen," "circadian," "sleep deprivation," "information processing," "psychosocial stress," or "nitroglycerin and tolerance." "Flavonoids" was crossed with "prooxidant." The reference lists of the resulting articles were examined for further relevant studies. The focus was on empirical studies, in vitro and of animals, of individual triggers, indicating whether and/or by what mechanism they can generate oxidative stress. RESULTS In all cases except pericranial pain, common migraine triggers are capable of generating oxidative stress. Depending on the trigger, mechanisms include a high rate of energy production by the mitochondria, toxicity or altered membrane properties of the mitochondria, calcium overload and excitotoxicity, neuroinflammation and activation of microglia, and activation of neuronal nicotinamide adenine dinucleotide phosphate (NADPH) oxidase. For some triggers, oxidants also arise as a byproduct of monoamine oxidase or cytochrome P450 processing, or from uncoupling of nitric oxide synthase. CONCLUSIONS Oxidative stress is a plausible unifying principle behind the types of migraine triggers encountered in clinical practice. The possible implications for prevention and for understanding the nature of the migraine attack are discussed.
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Affiliation(s)
- Jonathan M Borkum
- Department of Psychology, University of Maine, Orono, ME, USA.,Health Psych Maine, Waterville, ME, USA
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