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da Silva Frazão O, Brito MC, Macêdo CAF, Ribeiro TF, França JMG, Carvalho BAG, de Queiroz DB, Menezes PMN, de Almeida Ribeiro FP, Silva FS. (-)-Carvone Inhibits Oxytocin-induced Writhing Via Uterine Relaxation in Rodents. Reprod Sci 2024:10.1007/s43032-024-01663-z. [PMID: 39090333 DOI: 10.1007/s43032-024-01663-z] [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: 11/20/2023] [Accepted: 07/22/2024] [Indexed: 08/04/2024]
Abstract
(-)-Carvone, a ketone monoterpene, is the main component of essential oils from several medicinal plants and has been reported to have anti-arthriric, anticonvulsive, antidiabetic, anti-inflammatory, anticancer, and immunomodulatory effects. Therefore, this study aimed to investigate the spasmolytic activity of (-)-carvone in rodent models. The isolated virgin rat uterus was mounted in an organ bath apparatus, and the relaxing effect of ( -)-carvone and its mechanism of action were evaluated in tonic contractions induced by carbachol, KCl, PGF2α, or oxytocin. The animal model of primary dysmenorrhea was replicated with the injection of estradiol benzoate in female mice for three consecutive days, followed by intraperitoneal administration of oxytocin. Non-clinical acute toxicity evaluation was also performed. (-)-Carvone potency and effectiveness were larger in carbachol (pEC50 = 5.41 ± 0.14 and Emax = 92.63 ± 1.90% at 10-3 M) or oxytocin (pEC50 = 4.29 ± 0.17 and Emax = 86.69 ± 1.56% at 10-3 M) contractions. The effect of ( -)-carvone was altered in the presence of 4-aminopyridine, glibenclamide, L-NAME, or methylene blue. Mice pre-treated with (-)-carvone at a dose of 100 mg/kg showed a significant reduction in the number of writhing after oxytocin administration. No toxicity was observed after oral administration of 1 g/kg ( -)-carvone. Taken together, we showed that (-)-carvone reduced writhing by a spasmolytic effect, probably through the participation of KV and KATP channels and the nitric oxide pathway.
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Affiliation(s)
- Olivaneide da Silva Frazão
- Postgraduate Program in Biosciences, Federal University of San Francisco Valley (UNIVASF), Petrolina, Pernambuco, Brazil
| | - Mariana Coelho Brito
- Laboratory of Experimental Pharmacology, College of Pharmacy - Federal University of San Francisco Valley (UNIVASF), Av. José de Maniçoba S/N, Centro, Petrolina, PE, CEP: 56304-917, Brazil
| | - Cícero André Ferreira Macêdo
- Laboratory of Experimental Pharmacology, College of Pharmacy - Federal University of San Francisco Valley (UNIVASF), Av. José de Maniçoba S/N, Centro, Petrolina, PE, CEP: 56304-917, Brazil
- Graduate Program in Biotechnology - State University of Feira de Santana (UEFS), Feira de Santana, Bahia, Brazil
| | - Tiago Feitosa Ribeiro
- Northeast Biotechnology Network, Federal Rural University of Pernambuco (UFRPE), Recife, Pernambuco, Brazil
| | - Jennifer Milene Gomes França
- Laboratory of Experimental Pharmacology, College of Pharmacy - Federal University of San Francisco Valley (UNIVASF), Av. José de Maniçoba S/N, Centro, Petrolina, PE, CEP: 56304-917, Brazil
| | - Bárbara Artimis Gonçalves Carvalho
- Laboratory of Experimental Pharmacology, College of Pharmacy - Federal University of San Francisco Valley (UNIVASF), Av. José de Maniçoba S/N, Centro, Petrolina, PE, CEP: 56304-917, Brazil
| | | | - Pedro Modesto Nascimento Menezes
- Laboratory of Experimental Pharmacology, College of Pharmacy - Federal University of San Francisco Valley (UNIVASF), Av. José de Maniçoba S/N, Centro, Petrolina, PE, CEP: 56304-917, Brazil
| | - Fernanda Pires de Almeida Ribeiro
- Laboratory of Experimental Pharmacology, College of Pharmacy - Federal University of San Francisco Valley (UNIVASF), Av. José de Maniçoba S/N, Centro, Petrolina, PE, CEP: 56304-917, Brazil
| | - Fabrício Souza Silva
- Postgraduate Program in Biosciences, Federal University of San Francisco Valley (UNIVASF), Petrolina, Pernambuco, Brazil.
- Laboratory of Experimental Pharmacology, College of Pharmacy - Federal University of San Francisco Valley (UNIVASF), Av. José de Maniçoba S/N, Centro, Petrolina, PE, CEP: 56304-917, Brazil.
- Graduate Program in Biotechnology - State University of Feira de Santana (UEFS), Feira de Santana, Bahia, Brazil.
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Birchenall KA, Welsh GI, López Bernal A. The feto-placental metabolome of spontaneous labour is not reproduced following induction of labour. Placenta 2022; 129:111-118. [PMID: 36288646 DOI: 10.1016/j.placenta.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 10/04/2022] [Accepted: 10/09/2022] [Indexed: 12/14/2022]
Abstract
INTRODUCTION The mechanism for human labour remains poorly understood, limiting our ability to manage complications including spontaneous preterm birth and induction of labour (IOL). The study of fetal signals poses specific challenges. Metabolomic analysis of maternal blood, the cord artery (CA), and cord vein (CV), allows simultaneous interrogation of multiple metabolic pathways associated with different modes of labour onset and birth. METHODS Global mass spectrometry metabolomics analysis was performed on serial samples collected from participants during pregnancy, in latent phase of labour, and following birth (CA, CV, and intervillous (IV) blood), from those who spontaneously laboured and birthed vaginally (SL group), had IOL and birthed vaginally (IOL group), or birthed via elective caesarean section (no labour; ECS group). RESULTS There were clear differences in fetal and maternal steroid, arachidonate and sphingosine pathways between the SL and IOL groups, despite similar uterine contractions and vaginal birth. The CA/CV ratio for key steroids of the IOL group were more alike the ECS group than the SL group, including progesterone (CA/CV ratio for: SL group=3.5; IOL group=0.5; and ECS group=0.5), and oestriol (CA/CV ratio for: SL group=4.3; IOL group=0.4; and for ECS group=0.2). There were no such changes in the maternal samples. DISCUSSION These findings indicate that IOL does not reproduce the pathways activated in spontaneous labour. The decreased placental progesterone production observed with spontaneous labour may represent a local intrauterine progesterone withdrawal, which, together with other signals, would activate parturition pathways involving arachidonate and sphingosine metabolism.
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Affiliation(s)
- Katherine Alice Birchenall
- Department of Obstetrics and Gynaecology, St Michael's Hospital, Southwell Street, Bristol, BS2 8EG, UK; Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK.
| | - Gavin Iain Welsh
- Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK.
| | - Andrés López Bernal
- Department of Obstetrics and Gynaecology, St Michael's Hospital, Southwell Street, Bristol, BS2 8EG, UK; Translational Health Sciences, University of Bristol, Dorothy Hodgkin Building, Whitson Street, Bristol, BS1 3NY, UK.
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Kajuluri LP, Li Y, Morgan KG. The uterine myocyte, contractile machinery and proteins of the myometrium and their relationship to the dynamic nature of myometrial function. CURRENT OPINION IN PHYSIOLOGY 2020. [DOI: 10.1016/j.cophys.2019.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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