1
|
Farrokhfar S, Tiraihi T, Movahedin M, Azizi H. The Effect of Antinociceptive Dose of Morphine on Cell Therapy in Rats with Spinal Cord Injury. Mol Neurobiol 2024:10.1007/s12035-024-04350-x. [PMID: 39012442 DOI: 10.1007/s12035-024-04350-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 07/03/2024] [Indexed: 07/17/2024]
Abstract
Spinal cord injury (SCI) is a sensory-motor injury. Today, combined treatments such as cell therapy along with drug therapy and their interactions are of interest. Morphine is an opioid drug used to relieve intolerable pain. This study aims to evaluate the impact of an antinociceptive dose of morphine (with minimal tolerance/dependence but effective pain relief) on cell therapy in SCI. The antinociceptive dose of morphine was determined in rats with SCI through the Hargreaves and naloxone-induced morphine withdrawal tests. The rats were then allocated to 5 groups: laminectomy, SCI, SCI + Morphine, SCI + cell therapy, SCI + Morphine + cell therapy. The antinociceptive dose (5 mg/kg) was administered on days 1, 4, 10, and 13 (i.p.) post-SCI. On day 7, Neural-like stem cells derived from adipose tissue were transplanted intraspinally into the injured animals, and they were monitored for 12 weeks. The outcomes were assessed using the BBB test, somatosensory evoked potential (SSEP), and histology. The BBB test indicated that morphine significantly hindered functional recovery post-cell transplantation compared to animals receiving only cell therapy (p < 0.05). In the SSEP test, the analysis of amplitude and latency of waves did not reveal a significant difference (p > 0.05). The histological results showed that cell therapy reduced the cavity size post-SCI, while morphine had no significant impact on it. Morphine at the antinociceptive dose significantly impairs motor recovery despite cell therapy. Nonetheless, there was no significant difference between groups in terms of sensory pathway outcomes.
Collapse
Affiliation(s)
- Samaneh Farrokhfar
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
- Department of Anatomical Sciences, Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran
| | - Taki Tiraihi
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Mansoureh Movahedin
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hossein Azizi
- Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| |
Collapse
|
2
|
Sah A, Aggarwal G, Jain GK, Zaidi SMA, Naseef PP, Kuruniyan MS, Zakir F. Design and Development of a Topical Nanogel Formulation Comprising of a Unani Medicinal Agent for the Management of Pain. Gels 2023; 9:794. [PMID: 37888367 PMCID: PMC10606395 DOI: 10.3390/gels9100794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/16/2023] [Accepted: 06/07/2023] [Indexed: 10/28/2023] Open
Abstract
The oil of the Unani medicinal herb Baboona (Matricaria chamomilla) has shown potential in the management of pain. However, predicaments such as poor skin penetration, skin sensitization, liable to degradation, and volatile nature restrict its use. Therefore, our group for the first time has developed a carrier-based delivery system to facilitate the direct application of chamomile oil to the forehead. The developed nanogel was characterized for physical parameters such as compatibility, TEM, and stability studies. Further, it was also evaluated for pH, viscosity, spread ability, and extrudability, as well as through texture analyses, in vitro studies, and skin irritation tests. The formulation was successfully developed with all the necessary attributes. The in vitro studies revealed the enhanced skin penetration of chamomile oil nanogel. The in vivo studies were also performed in chemically induced pain models, mimicking migraine. The studies show significant improvement of the pain threshold for chamomile nanogel when compared to the positive control group and the results were comparable to marketed diclofenac formulations. Finally, the encapsulation into nanogel reduced the skin irritation property. The nanogel formulation showed promising effects in the pain management of migraine.
Collapse
Affiliation(s)
- Amit Sah
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Delhi Pharmaceutical Sciences and Research University, Sector-3, M.B. Road, Pushp Vihar, New Delhi 110017, India
| | - Geeta Aggarwal
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Sector-3, M.B. Road, Pushp Vihar, New Delhi 110017, India;
| | - Gaurav K. Jain
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Delhi Pharmaceutical Sciences and Research University, Sector-3, M.B. Road, Pushp Vihar, New Delhi 110017, India
| | - Syed Mohammad Abbas Zaidi
- Department of Moalajat (Internal Medicine), Hakim Syed Zia ul Hasan (HSZH) Govt. Unani Medical College, Bhopal 462003, India
| | | | - Mohamed S. Kuruniyan
- Department of Dental Technology, College of Applied Medical Sciences, King Khalid University, Abha 61421, Saudi Arabia;
| | - Foziyah Zakir
- Department of B.Pharm (Ayurveda), School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, Sector-3, M.B. Road, Pushp Vihar, New Delhi 110017, India
| |
Collapse
|
3
|
Abd-Elmawla MA, Abdelalim E, Ahmed KA, Rizk SM. The neuroprotective effect of pterostilbene on oxaliplatin-induced peripheral neuropathy via its anti-inflammatory, anti-oxidative and anti-apoptotic effects: Comparative study with celecoxib. Life Sci 2023; 315:121364. [PMID: 36610639 DOI: 10.1016/j.lfs.2022.121364] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 12/22/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND Oxaliplatin is one of the first-line drugs in solid tumors treatment. However, neuropathy is a devastating side effect leading to poor compliance and treatment cessation. AIM The current study explored pterostilbene plausible neuroprotective effects aiming to ascertain the potential mechanisms involved in relieving oxaliplatin-induced peripheral neuropathy (OIPN) and investigating whether pterostilbene and celecoxib combination could show better relief. MAIN METHODS Rats were divided into six groups; control, pterostilbene (40 mg/kg/day, p.o. for 5 weeks), oxaliplatin (4 mg/kg, i.p. twice per week for 4.5 weeks), celecoxib (30 mg/kg/day, p.o. for 5 weeks) and combination of pterostilbene and celecoxib. Behavioral tests and histopathological analysis of sciatic nerves were done. MAPKs, cytokines, COX-2, and PGE2 gene and protein expressions were estimated using qRT-PCR, western, and ELISA techniques. Malondialdehyde (MDA) and total antioxidant capacity (TAC) were assessed by colorimetric assay while apoptotic markers by immunohistochemical analysis and qRT-PCR. KEY FINDINGS The study revealed that pterostilbene and celecoxib averted oxaliplatin-induced behavioral and motor impairments along with restoration of histopathological changes. Moreover, pterostilbene and celecoxib have significantly attenuated sciatic nerve: p38 MAPK, JNK, ERK1/2, NF-κB, COX-2, PGE2, TNF-α, and interleukins levels. Pterostilbene and celecoxib have reduced caspase-3, Bax, and MDA while increasing Bcl-2 level and TAC. SIGNIFICANCE Altogether, Pterostilbene mitigates OIPN by interrupting the vicious cycle of inflammation, oxidation, and apoptosis. Furthermore, pterostilbene and celecoxib show comparable attenuation on MAPKs cascades, inflammatory cytokines, oxidative and apoptotic markers. Likewise, co-administration of pterostilbene and celecoxib shows further relief of neuropathic pain.
Collapse
Affiliation(s)
- Mai A Abd-Elmawla
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Eman Abdelalim
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Kawkab A Ahmed
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Sherine M Rizk
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| |
Collapse
|
4
|
Medeiros MAMB, Gama e Silva M, de Menezes Barbosa J, Martins de Lavor É, Ribeiro TF, Macedo CAF, de Souza Duarte-Filho LAM, Feitosa TA, de Jesus Silva J, Fokoue HH, Araújo CRM, de Assis Gonsalves A, Augusto de Araújo Ribeiro L, Almeida JRGDS. Antinociceptive and anti-inflammatory effects of hydrazone derivatives and their possible mechanism of action in mice. PLoS One 2021; 16:e0258094. [PMID: 34818331 PMCID: PMC8612535 DOI: 10.1371/journal.pone.0258094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 09/20/2021] [Indexed: 01/12/2023] Open
Abstract
Pain and inflammation are unpleasant experiences that usually occur as a result of tissue damage. Despite the number of existing analgesic drugs, side effects limit their use, stimulating the search for new therapeutic agents. In this sense, five hydrazone derivatives (H1, H2, H3, H4, and H5), with general structure R1R2C = NNR3R4, were synthesized with molecular modification strategies. In this paper, we describe the ability of hydrazone derivatives to attenuate nociceptive behavior and the inflammatory response in mice. Antinociceptive activity was evaluated through acetic acid-induced writhing and formalin-induced nociception tests. In both experimental models, the hydrazone with the greatest potency (H5) significantly (p < 0.05) reduced nociceptive behavior. Additionally, methods of acute and chronic inflammation induced by different chemicals (carrageenan and histamine) were performed to evaluate the anti-inflammatory effect of H5. Moreover, molecular docking analysis revealed that H5 can block the COX-2 enzyme, reducing arachidonic acid metabolism and consequently decreasing the production of prostaglandins, which are important inflammatory mediators. H5 also changes locomotor activity. In summary, H5 exhibited relevant antinociceptive and anti-inflammatory potential and acted on several targets, making it a candidate for a new multi-target oral anti-inflammatory drug.
Collapse
Affiliation(s)
- Maria Alice Miranda Bezerra Medeiros
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
- Pós-Graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, Bahia, Brasil
| | - Mariana Gama e Silva
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
- Pós-Graduação em Biotecnologia—Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brasil
| | - Jackson de Menezes Barbosa
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
- Pós-Graduação em Biotecnologia—Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brasil
| | - Érica Martins de Lavor
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
- Pós-Graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, Bahia, Brasil
| | - Tiago Feitosa Ribeiro
- Pós-Graduação em Biotecnologia—Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brasil
| | | | | | - Thiala Alves Feitosa
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
- Pós Graduação em Biociências, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
| | - Jussara de Jesus Silva
- Colegiado de Farmácia, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
| | - Harold Hilarion Fokoue
- Laboratório de Avaliação e Síntese de Substâncias Bioativas (LASSBio), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil
| | | | - Arlan de Assis Gonsalves
- Colegiado de Farmácia, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
| | - Luciano Augusto de Araújo Ribeiro
- Pós Graduação em Biociências, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
- Colegiado de Farmácia, Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
| | - Jackson Roberto Guedes da Silva Almeida
- Núcleo de Estudos e Pesquisas de Plantas Medicinais (NEPLAME), Universidade Federal do Vale do São Francisco, Petrolina, Pernambuco, Brasil
- Pós-Graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Feira de Santana, Bahia, Brasil
| |
Collapse
|
5
|
Development of a novel nanoemulgel formulation containing cumin essential oil as skin permeation enhancer. Drug Deliv Transl Res 2021; 12:1455-1465. [PMID: 34275091 PMCID: PMC9061677 DOI: 10.1007/s13346-021-01025-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2021] [Indexed: 11/30/2022]
Abstract
Essential oils have been proposed as promising non-toxic transdermal permeation enhancers. Their use is limited because of their low water solubility. The use of nanotechnology-based strategies is one of the ways to overcome this limitation. This study aimed to explore the transdermal permeation enhancing capability of cumin essential oil in nanoemulgel systems containing diclofenac sodium. Cumin essential oil nanoemulsion was produced by high-pressure homogenization technique. The formulation was optimized by changing HLB values in a range of 9.65–16.7 using different surfactant mixtures, namely, Tween 20, Tween 80, and Span 80. Preparations were characterized by polydispersity index, droplet size, and zeta potential. Nanoemulsion with concentrations of 2 and 4% essential oil was incorporated into 0.75% Carbopol gel matrix to make nanoemulgel formulation, and its permeation enhancing effect was performed through Franz diffusion cells. Antinociceptive activities of the formulations were measured in thermal (tail-flick) and chemical (formalin) models of nociception in mice. Characterization exhibited that at HLB value of 9.65, the smallest particle size (82.20 ± 5.82 nm) was formed. By increasing the essential oil percentage in the nanoemulgel from 1 to 2%, the permeation of diclofenac increased from 28.39 ± 1.23 to 34.75 ± 1.07 µg/cm2 at 24 h. The value of permeation from the simple gel (21.18 ± 2.51 µg/cm2) and the marketed product (22.97 ± 1.92 µg/cm2) was lower than the formulations containing essential oil. Nanoemulgel of diclofenac containing essential oil showed stronger antinociceptive effects in formalin and tail-flick tests than simple diclofenac gel and marketed formulation. In conclusion, the study proved that nanoemulgel formulation containing cumin essential oil could be considered as a promising skin enhancer to enhance the therapeutic effect of drugs.
Collapse
|
6
|
Mouraux A, Bannister K, Becker S, Finn DP, Pickering G, Pogatzki-Zahn E, Graven-Nielsen T. Challenges and opportunities in translational pain research - An opinion paper of the working group on translational pain research of the European pain federation (EFIC). Eur J Pain 2021; 25:731-756. [PMID: 33625769 PMCID: PMC9290702 DOI: 10.1002/ejp.1730] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
For decades, basic research on the underlying mechanisms of nociception has held promise to translate into efficacious treatments for patients with pain. Despite great improvement in the understanding of pain physiology and pathophysiology, translation to novel, effective treatments for acute and chronic pain has however been limited, and they remain an unmet medical need. In this opinion paper bringing together pain researchers from very different disciplines, the opportunities and challenges of translational pain research are discussed. The many factors that may prevent the successful translation of bench observations into useful and effective clinical applications are reviewed, including interspecies differences, limited validity of currently available preclinical disease models of pain, and limitations of currently used methods to assess nociception and pain in non-human and human models of pain. Many paths are explored to address these issues, including the backward translation of observations made in patients and human volunteers into new disease models that are more clinically relevant, improved generalization by taking into account age and sex differences, and the integration of psychobiology into translational pain research. Finally, it is argued that preclinical and clinical stages of developing new treatments for pain can be improved by better preclinical models of pathological pain conditions alongside revised methods to assess treatment-induced effects on nociception in human and non-human animals. Significance: For decades, basic research of the underlying mechanisms of nociception has held promise to translate into efficacious treatments for patients with pain. Despite great improvement in the understanding of pain physiology and pathophysiology, translation to novel, effective treatments for acute and chronic pain has however been limited, and they remain an unmet medical need.
Collapse
Affiliation(s)
- André Mouraux
- Institute of Neuroscience (IONS), UCLouvain, Brussels, Belgium
| | - Kirsty Bannister
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Susanne Becker
- Department of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.,Integrative Spinal Research, Department of Chiropractic Medicine, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - David P Finn
- Pharmacology and Therapeutics, Centre for Pain Research, School of Medicine, National University of Ireland Galway, Galway, Ireland
| | - Gisèle Pickering
- Department of Clinical Pharmacology, Inserm CIC 1405, University Hospital, CHU Clermont-Ferrand, France.,Fundamental and Clinical Pharmacology of Pain, University Clermont Auvergne, Clermont-Ferrand, France
| | - Esther Pogatzki-Zahn
- Department of Anesthesiology, Critical Care Medicine and Pain Therapy, University Hospital Muenster, Muenster, Germany
| | - Thomas Graven-Nielsen
- Center for Neuroplasticity and Pain (CNAP), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark
| |
Collapse
|
7
|
Ahmadimoghaddam D, Sadeghian R, Ranjbar A, Izadidastenaei Z, Mohammadi S. Antinociceptive activity of Cnicus benedictus L. leaf extract: a mechanistic evaluation. Res Pharm Sci 2020; 15:463-472. [PMID: 33628288 PMCID: PMC7879793 DOI: 10.4103/1735-5362.297849] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 05/04/2020] [Accepted: 09/27/2020] [Indexed: 12/17/2022] Open
Abstract
Background and purpose: Cnicus benedictus, a medicinal herb, traditionally had been used for the treatment of stomachache pain. In this study, the possible efficacy of Cnicus benedictus leaf methanolic extract (CBHE) and also cnicin, one of its major constituents, was measured on pain. Experimental approach: In this study, pain assessment tests include writhing, tail-flick (TF), and formalin- induced paw licking test (FIPLT) were used. To understand the possible mediated anti-nociceptive mechanism of CBHE, the opioid mechanism(s), and involvement of the L-arginine/ nitric oxide/cGMP/ATP-sensitive potassium channel pathway (LNCaP) were scrutinized. Findings/Results: In TF and writhing tests, CBHE (150 and 300 mg/kg, i.p) remarkably exhibited an anti-nociceptive effect compared to that of the control. Furthermore, CBHE (150 and 300 mg/kg, i.p) in comparison with the control showed a noteworthy anti-nociceptive effect (P < 0.01) in the tonic phase of FIPLT. In the writhing test, administration of selective opioid antagonist (naltrindole, nor-binaltorphimine, and naloxonazine) attenuated the anti-nociceptive effect of CBHE (300 mg/kg) in comparison with control. Moreover, pre-treatment with Nω-nitro-L-arginine methyl ester hydrochloride, L-arginine hydrochloride, and glibenclamide significantly blocked the CBHE (300 mg/kg) anti-nociception (P < 0.05) while administration of sodium nitroprusside remarkably potentiated (P < 0.05) the antinociception induced by CBHE in the tonic phase of the FIPLT. Besides, cnicin (30 mg/kg) showed noteworthy anti-nociceptive effects in writhing, TF, and FIPLT paradigms. Conclusion and implications: Taken together, we elucidate that both CBHE and cnicin demonstrated antinociceptive effects in behavioral tests. The possible mechanisms of CBHE antinociception may involve in various neural signaling and modulatory pathways including LNCaP and opioidergic mechanisms.
Collapse
Affiliation(s)
- Davoud Ahmadimoghaddam
- Department of Pharmacology and Toxicology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, I.R. Iran.,Medicinal Plants and Natural Products Research Center, Hamadan University of Medical Sciences, Hamadan, I.R. Iran
| | - Reihaneh Sadeghian
- Student Research Committee, Hamadan University of Medical Sciences, Hamadan, I.R. Iran.,Medical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, I.R. Iran
| | - Akram Ranjbar
- Department of Pharmacology and Toxicology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, I.R. Iran.,Medicinal Plants and Natural Products Research Center, Hamadan University of Medical Sciences, Hamadan, I.R. Iran
| | - Zohreh Izadidastenaei
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, I.R. Iran
| | - Saeed Mohammadi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, I.R. Iran.,Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, I.R. Iran
| |
Collapse
|
8
|
Shamsi Meymandi M, Sepehri G, Moslemizadeh A, Vakili Shahrbabaki S, Bashiri H. Prenatal pregabalin is associated with sex-dependent alterations in some behavioral parameters in valproic acid-induced autism in rat offspring. Int J Dev Neurosci 2020; 80:500-511. [PMID: 32588482 DOI: 10.1002/jdn.10046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 11/10/2022] Open
Abstract
This study was performed to evaluate the effects of prenatal exposure to pregabalin (PGB) on behavioral changes of rat offspring in an animal model of valproic acid (VPA)-induced autism-like symptoms. Pregnant rats received VPA (600 mg/kg/i.p.) once at 12.5 gestational days for autism-like symptom induction in offspring. After the delivery single male and single female offspring from each mother were randomly selected for behavioral test (anxiety, pain response, pleasure, and motor function) at 60th day adulthood (n = 7). Offspring received prenatal PGB (15 & 30 mg/kg/i.p.) during gestational days 9.5 to 15.5 either alone or in combination with VPA (PGB15, PGB30, PGB15 + VPA, and PGB30 + VPA). Control offspring received normal saline during the same period. The result showed that prenatal VPA exposure was associated with autism-like behaviors in rat offspring. PGB treatment during the gestational period revealed significant reduction in sucrose preference test and anxiety in elevated plus maze and open field test in offspring. Also, PGB treatments exhibited a dose-dependent increase in pain threshold in prenatally VPA exposed rats in tail-flick and hot plate test. Also, there was a sex-related significant impairment in motor function in beam balance and open field test, and male rats were affected more than females. However, no significant sex differences in sucrose preference and pain sensitivity were observed in prenatal PGB-treated rat offspring. In conclusion, prenatal exposure to VPA increased the risk of autism-like behaviors in the offspring rats, and PGB treatment during the gestational period was associated with some beneficial effects, including anxiety reduction and motor impairment in autism-like symptoms in rat offspring.
Collapse
Affiliation(s)
- Manzumeh Shamsi Meymandi
- Pathology and Stem Cells Research Center, Kerman Medical School, Kerman University of Medical Sciences, Kerman, Iran.,Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Gholamreza Sepehri
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | | | | | - Hamideh Bashiri
- Physiology Research Center, Department of Physiology and Pharmacology, Medical School, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.,Department of Physiology and Pharmacology, Sirjan School of Medical Sciences, Sirjan, Iran
| |
Collapse
|
9
|
Riffel APK, de Souza JA, Santos MDCQ, Kroth A, da Silveira EMS, Scheid T, Dexheimer GM, Horst A, Kolberg C, Ribeiro MFM, de Fraga LS, Partata WA. Co-administration of ascorbic acid and α-tocopherol modifies ascorbic acid and attenuates p38, Akt, and TNF-α expression in spinal cord of rats with neuropathic pain. ACTA ACUST UNITED AC 2020. [DOI: 10.1186/s41110-019-0113-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|