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Pan X, Liu F, Song Y, Wang H, Wang L, Qiu H, Price M, Li J. Motor Stereotypic Behavior Was Associated With Immune Response in Macaques: Insight From Transcriptome and Gut Microbiota Analysis. Front Microbiol 2021; 12:644540. [PMID: 34394017 PMCID: PMC8360393 DOI: 10.3389/fmicb.2021.644540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 07/07/2021] [Indexed: 01/03/2023] Open
Abstract
Motor stereotypic behaviors (MSBs) are common in captive rhesus macaques (Macaca mulatta) and human with psychiatric diseases. However, large gaps remain in our understanding of the molecular mechanisms that mediate this behavior and whether there are similarities between human and non-human primates that exhibit this behavior, especially at gene expression and gut microbiota levels. The present study combined behavior, blood transcriptome, and gut microbiota data of two groups of captive macaques to explore this issue (i.e., MSB macaques with high MSB exhibition and those with low: control macaques). Observation data showed that MSB macaques spent the most time on MSB (33.95%), while the CONTROL macaques allocated more time to active (30.99%) and general behavior (30.0%), and only 0.97% of their time for MSB. Blood transcriptome analysis revealed 382 differentially expressed genes between the two groups, with 339 upregulated genes significantly enriched in inflammation/immune response-related pathway. We also identified upregulated pro-inflammatory genes TNFRSF1A, IL1R1, and IL6R. Protein–protein interaction network analysis screened nine hub genes that were all related to innate immune response, and our transcriptomic results were highly similar to findings in human psychiatric disorders. We found that there were significant differences in the beta-diversity of gut microbiota between MSB and CONTROL macaques. Of which Phascolarctobacterium, the producer of short chain fatty acids (SCFAs), was less abundant in MSB macaques. Meanwhile, PICRUSTs predicted that SCFAs intermediates biosynthesis and metabolic pathways were significantly downregulated in MSB macaques. Together, our study revealed that the behavioral, gene expression levels, and gut microbiota composition in MSB macaques was different to controls, and MSB was closely linked with inflammation and immune response. This work provides valuable information for future in-depth investigation of MSB and human psychiatric diseases.
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Affiliation(s)
- Xuan Pan
- Key Laboratory of Bio-Resources and Eco-Environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Fangyuan Liu
- Key Laboratory of Bio-Resources and Eco-Environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Yang Song
- Key Laboratory of Bio-Resources and Eco-Environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Hongrun Wang
- Development and Application of Human Major Disease Monkey Model Key Laboratory of Sichuan Province, Sichuan Hengshu Bio-Technology Co., Ltd., Yibin, China
| | - Lingyun Wang
- Development and Application of Human Major Disease Monkey Model Key Laboratory of Sichuan Province, Sichuan Hengshu Bio-Technology Co., Ltd., Yibin, China
| | - Hong Qiu
- Key Laboratory of Bio-Resources and Eco-Environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Megan Price
- Key Laboratory of Bio-Resources and Eco-Environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Jing Li
- Key Laboratory of Bio-Resources and Eco-Environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
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Keller R, Costa T, Imperiale D, Bianco A, Rondini E, Hassiotis A, Bertelli MO. Stereotypies in the Autism Spectrum Disorder: Can We Rely on an Ethological Model? Brain Sci 2021; 11:762. [PMID: 34201177 PMCID: PMC8230333 DOI: 10.3390/brainsci11060762] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/28/2021] [Accepted: 05/30/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Stereotypic behaviour can be defined as a clear behavioural pattern where a specific function or target cannot be identified, although it delays on time. Nonetheless, repetitive and stereotypical behaviours play a key role in both animal and human behaviour. Similar behaviours are observed across species, in typical human developmental phases, and in some neuropsychiatric conditions, such as Autism Spectrum Disorder (ASD) and Intellectual Disability. This evidence led to the spread of animal models of repetitive behaviours to better understand the neurobiological mechanisms underlying these dysfunctional behaviours and to gain better insight into their role and origin within ASD and other disorders. This, in turn, could lead to new treatments of those disorders in humans. METHOD This paper maps the literature on repetitive behaviours in animal models of ASD, in order to improve understanding of stereotypies in persons with ASD in terms of characterization, pathophysiology, genomic and anatomical factors. RESULTS Literature mapping confirmed that phylogenic approach and animal models may help to improve understanding and differentiation of stereotypies in ASD. Some repetitive behaviours appear to be interconnected and mediated by common genomic and anatomical factors across species, mainly by alterations of basal ganglia circuitry. A new distinction between stereotypies and autotypies should be considered. CONCLUSIONS Phylogenic approach and studies on animal models may support clinical issues related to stereotypies in persons with ASD and provide new insights in classification, pathogenesis, and management.
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Affiliation(s)
- Roberto Keller
- Adult Autism Centre, Mental Health Department, ASL Città di Torino, 10138 Turin, Italy; (R.K.); (T.C.)
| | - Tatiana Costa
- Adult Autism Centre, Mental Health Department, ASL Città di Torino, 10138 Turin, Italy; (R.K.); (T.C.)
| | - Daniele Imperiale
- Neurology Unit, Maria Vittoria Hospital, ASL Città di Torino, 10144 Turin, Italy;
| | - Annamaria Bianco
- CREA (Research and Clinical Centre), San Sebastiano Foundation, Misericordia di Firenze, 50142 Florence, Italy; (A.B.); (E.R.)
| | - Elisa Rondini
- CREA (Research and Clinical Centre), San Sebastiano Foundation, Misericordia di Firenze, 50142 Florence, Italy; (A.B.); (E.R.)
| | - Angela Hassiotis
- Division of Psychiatry, University College London, London W1T 7NF, UK;
| | - Marco O. Bertelli
- CREA (Research and Clinical Centre), San Sebastiano Foundation, Misericordia di Firenze, 50142 Florence, Italy; (A.B.); (E.R.)
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Birkl P, Chow J, McBride P, Kjaer JB, Kunze W, Forsythe P, Harlander-Matauschek A. Effects of Acute Tryptophan Depletion on Repetitive Behavior in Laying Hens. Front Vet Sci 2019; 6:230. [PMID: 31355217 PMCID: PMC6637846 DOI: 10.3389/fvets.2019.00230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 06/25/2019] [Indexed: 11/18/2022] Open
Abstract
Repetitive pecking at the feather cover of other birds (FP) is one of the most important welfare problems in domestic birds. It is not only characterized by motor symptoms, but also by an innate vulnerability of the serotonergic system. Moreover, the serotonergic system influences cognitive function. Acute tryptophan depletion (ATD) is a widely used method for studying serotonergic function in mammals and has been recently validated in birds. However, a tryptophan-deficient amino acid mixture has never been tested on groups of birds to impact their social behavior, including repetitive feather pecking, nor has it been given to potentially impact their cognition and motor performance. One hundred and sixty White Leghorn laying hens consisting of two genetic lines divergently selected to perform high (H) or low (L) levels of FP, and an unselected control line (UC), were kept in 10 groups consisting of 4 H, 3 L, and 9 UC genotypes. In a counterbalanced order, half of the groups were first subjected to an ATD treatment, while the other half were first given a balanced control (BC) treatment, and vice versa, after which their feather pecking behavior was observed. The effect of ATD/BC on repetitive pecking, motor performance, and cognition was investigated in a 5-s delayed reward task in an operant chamber with 10 phenotypic feather peckers, 10 recipients of feather pecking, and 10 bystanders (who neither performed nor received feather pecks). ATD given to groups of birds induced gentle, repetitive feather pecking in all genotypes. Following ATD, phenotypic feather peckers performed more poorly during the delayed reward task, as seen by their higher number of repetitive, non-rewarded key, and non-key pecks in the operant chamber. In conclusion, ATD impacted the hens' social behavior by increasing the number of repetitive gentle feather pecks at conspecifics. Furthermore, feather peckers were more likely to peck while waiting for a reward after ATD, suggesting a role for the serotonergic system on cognition in these birds.
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Affiliation(s)
- Patrick Birkl
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Jacqueline Chow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Peter McBride
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Joergen B Kjaer
- Friedrich-Loeffler-Institute, Federal Research Institute for Animal Health, Institute of Animal Welfare and Animal Husbandry, Celle, Germany
| | - Wolfgang Kunze
- Department of Medicine, Brain-Body Institute and Firestone Institute for Respiratory Health, McMaster University, Hamilton, ON, Canada
| | - Paul Forsythe
- Department of Medicine, Brain-Body Institute and Firestone Institute for Respiratory Health, McMaster University, Hamilton, ON, Canada
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de Haas EN, van der Eijk JA. Where in the serotonergic system does it go wrong? Unravelling the route by which the serotonergic system affects feather pecking in chickens. Neurosci Biobehav Rev 2018; 95:170-188. [DOI: 10.1016/j.neubiorev.2018.07.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 07/09/2018] [Accepted: 07/10/2018] [Indexed: 12/16/2022]
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Ijichi CL, Collins LM, Elwood RW. Evidence for the role of personality in stereotypy predisposition. Anim Behav 2013. [DOI: 10.1016/j.anbehav.2013.03.033] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lanovaz MJ. Towards a comprehensive model of stereotypy: integrating operant and neurobiological interpretations. RESEARCH IN DEVELOPMENTAL DISABILITIES 2011; 32:447-455. [PMID: 21236636 DOI: 10.1016/j.ridd.2010.12.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 12/16/2010] [Indexed: 05/30/2023]
Abstract
The predominant models on the emergence and maintenance of stereotypy in individuals with developmental disabilities are based on operant and neurobiological interpretations of the behavior. Although the proponents of the two models maintain largely independent lines of research, operant and neurobiological interpretations of stereotypy are not mutually exclusive. The paper reviews the two models of stereotypy and proposes an integrated model using recent findings on the neurobiology of reinforcement. The dopaminergic system and the basal ganglia are both involved in stereotypy and in reinforcement, which provides a potential link between the models. Implications of the integrated model for future research are discussed in terms of improving the assessment and treatment of stereotypy in individuals with developmental disabilities.
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Affiliation(s)
- Marc J Lanovaz
- Department of Educational and Counselling Psychology, McGill University, 3700 McTavish St., Montreal, QC, Canada H3A 1Y2.
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Langen M, Kas MJH, Staal WG, van Engeland H, Durston S. The neurobiology of repetitive behavior: of mice…. Neurosci Biobehav Rev 2010; 35:345-55. [PMID: 20156480 DOI: 10.1016/j.neubiorev.2010.02.004] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2009] [Revised: 02/05/2010] [Accepted: 02/08/2010] [Indexed: 11/19/2022]
Abstract
Repetitive and stereotyped behavior is a prominent element of both animal and human behavior. Similar behavior is seen across species, in diverse neuropsychiatric disorders and in key phases of typical development. This raises the question whether these similar classes of behavior are caused by similar neurobiological mechanisms or whether they are neurobiologically unique? In this paper we discuss fundamental animal research and translational models. Imbalances in corticostriatal function often result in repetitive behavior, where different classes of behavior appear to be supported by similar neural mechanisms. Although the exact nature of these imbalances are not yet fully understood, synthesizing the literature in this area provides a framework for studying the neurobiological systems involved in repetitive behavior.
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Affiliation(s)
- Marieke Langen
- Department of Child and Adolescent Psychiatry, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, The Netherlands.
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Increased survival and reproductive success associated with stereotypical behaviours in laboratory-bred bank voles (Clethrionomys glareolus). Appl Anim Behav Sci 2009. [DOI: 10.1016/j.applanim.2009.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Handling-induced tonic/clonic seizures in captive born bank voles (Clethrionomys glareolus). Appl Anim Behav Sci 2009. [DOI: 10.1016/j.applanim.2009.02.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Korff S, Stein DJ, Harvey BH. Stereotypic behaviour in the deer mouse: pharmacological validation and relevance for obsessive compulsive disorder. Prog Neuropsychopharmacol Biol Psychiatry 2008; 32:348-55. [PMID: 17888556 DOI: 10.1016/j.pnpbp.2007.08.032] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2007] [Revised: 08/20/2007] [Accepted: 08/22/2007] [Indexed: 11/18/2022]
Abstract
Stereotypy is an important manifestation of obsessive compulsive disorder (OCD). OCD involves disturbed serotonin and dopamine pathways, and demonstrates a selective response to serotonin reuptake inhibitors (SRI), with limited to no response to noradrenaline reuptake inhibitors (NRI). Deer mice (Peromyscus maniculatus bairdii) engage in various spontaneous stereotypic behaviours, including somersaulting, jumping and pattern running, and has to date not been explored for possible relevance for OCD. We studied the population diversity of spontaneous stereotypy in these animals, followed by assessing behavioural response to chronic high and low dose SRI (viz. fluoxetine) and NRI (viz. desipramine) treatment (both 10 mg/kg; 20 mg/kg x 21 days). We also studied behavioural responses to the 5-HT(2A/C) agonist, meta-chlorophenylpiperazine (mCPP) and the D2 agonist, quinpirole (2 mg/kg and 5 mg/kg respectively x 4 days). Deer mice showed a distinct separation into high and low stereotypic behaviour populations, with high and low dose fluoxetine, but not desipramine, significantly reducing stereotypic behaviour in both populations. A significant attenuation of stereotypy was also observed in both groups following quinpirole or mCPP challenge. In its response to drug treatment, spontaneous stereotypic behaviour in deer mice demonstrates predictive validity for OCD. States of spontaneous stereotypy are attenuated by 5-HT(2A/C) and dopamine D2 receptor agonists.
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Affiliation(s)
- Schaun Korff
- Unit for Drug Research and Development, School of Pharmacy (Pharmacology), North-West University (Potchefstroom Campus), Potchefstroom, 2520, South Africa
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Schønecker B. Comment to reply from Lieve Meers and Frank Olof Odberg. Prog Neuropsychopharmacol Biol Psychiatry 2007; 31:582-3. [PMID: 17157425 DOI: 10.1016/j.pnpbp.2006.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2006] [Accepted: 10/23/2006] [Indexed: 11/17/2022]
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Schønecker B. Comments on "Paradoxial rate-dependent effect of fluoxetine on captivity-induced stereotypies in bank voles" by Lieve Meers, Frank Olof Odberg. In: Progress in Neuro-Psychopharmacology and Biological Psychiatry 29 (2005) 964-971. Prog Neuropsychopharmacol Biol Psychiatry 2006; 30:965-6; author reply 967-8. [PMID: 16626842 DOI: 10.1016/j.pnpbp.2006.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2005] [Accepted: 03/01/2006] [Indexed: 11/29/2022]
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Korff S, Harvey BH. Animal models of obsessive-compulsive disorder: rationale to understanding psychobiology and pharmacology. Psychiatr Clin North Am 2006; 29:371-90. [PMID: 16650714 DOI: 10.1016/j.psc.2006.02.007] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Animal models have shown progressive development and have undoubtedly proven their supportive value in OCD research. Thus, various animal models have confirmed the importance of the 5-HT [72-74] and dopamine systems [104,111] in the neurobiology and treatment of OCD. Given the neurochemical, emotional, and cognitive complexity of the disorder, how-ever, animal models are being used to investigate more and more complicated neurochemical and behavioral theories purported to underlie OCD. The lever-press model, for example, has implicated deficient response feed-back in a neural system that regulates operant behavior [74]. Studies on stereotypic movement disorder [89] have opened a new avenue of investigation into the neurobiology of stereotypy that may be applicable to more complex syndromes such as OCD. Models that have focused on specific neuropsychologic aspects of OCD such as reward [74], displacement behavior[63,101], perseveration and indecisiveness [73,102], and spontaneous stereotypy [90,94] are important in their attempt to unify the diverse behavioral manifestations of this disorder. It is clear that for a deeper, more holistic understanding of OCD, multiple animal models will be needed to allow investigation of the various aspects of the disorder and to provide convergent validation of the research findings. The heterogeneous nature of OCD, the various subtypes that exist within the disorder, and the range of obsessive-compulsive spectrum disorders suggest that particular questions regarding OCD may be addressed best by us-ing a particular ethologic model, whereas other questions might require a pharmacologic model or a combination of both for meaningful results[62,115]. Genetic models will be extremely useful for studying the genetics of pathologic behavior and for relating these findings to neuroanatomic and neurochemical changes in the model (eg, DICT-7 mice as a model for Tourette's syndrome and OCD). Neither ethologic nor pharmacologic models, however, can assess whether the "compulsive" behavior is a response to an "obsessive" anxiety or fear. Perhaps the symptoms seen in patients who have OCD, which may be exacerbated by everyday stress, are analogous to displacement behaviors in animals and also reflect some form of anxiety or stress [98]. In this regard, the bank vole model [116]has provided evidence that previously developed stereotypies increase markedly after acute stress and argues that healthy individuals "habituate" to everyday stress, whereas patients who have OCD do not. Interindividual variation in behavioral response and attempts to replicate studies in different laboratories often is the nemesis of the behavioral scientist. Small within- and between-subject variability is usually desirable, how-ever, because there are cases in which the study of the variability of the model could lead to a better understanding of the disorder. Variability can-not always be considered an error; it is possible that previously disregarded neuronal systems may have a place in the observed variation and, indeed, in the pathophysiology of OCD. In this regard, SRIs are not always effective for OCD [6,29,30] such that a lack of effect in a model may reflect an un-known neurobiological basis for compulsive behavior in a sub-group of SRI refractory patients. Similarly, separating the afflicted (ie, working with animals that show greater behavioral change in a model and/or after drug treatment) would have distinct benefits. To increase successful implementation of an ethologic animal model, especially when reinforcement models or signal attenuation models are used,the laboratory must be equipped with the essential behavioral testing apparatus as well as the operant chambers/rooms in which to conduct the train-ing and data collection. Quantification of certain stereotypy behaviors also requires experienced or trained observers. An illustration of the difficulty in measuring behavioral changes is that in the rewarded alternation model,a good response to behavioral treatment (alternation training) may lead to a floor effect [73] which, after successful drug treatment of the animal,produces no residual persistence (ie, measurable behavioral change) on which a drug treatment can be tested. Clearly, the choice of ethologic, pharmacologic, or genetic models should be considered carefully. A well-validated model may quell many of the limitations and considerations described previously. Noninvasive neuroimaging(eg, the use of small-animal single-photon emission CT) to explore the neuroanatomic basis of OCD offers an exciting future challenge, especially if combined with pharmacologic or ethologic models, and could confirm or ex-tend knowledge of the neuroanatomy of OCD. Although studies to investigate further the interactive role of 5-HT, dopamine, GABA, and glutamate are still needed, the role of neuroactive peptides such as cholecystokinin, corticotrophin-releasing factor, neuropeptide Y, tachykinins (ie, substance P),and natriuretic peptides in OCD should also be considered. Genetically engineered animal models will become increasingly valuable in combination with new technologies such as gene-chip microarrays, RNA interference, and advanced proteomics that will help further the understanding of OCD. Animal models of OCD are poised to play a vital role in extending the knowledge of the disorder now and in the future.
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Affiliation(s)
- Schaun Korff
- Division of Pharmacology, School of Pharmacy, North-West University, Potchefstroom 2520, South Africa
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