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. 2024 Dec 3;28(4):670-677.
doi: 10.5935/1518-0557.20240060.

Effect of β-caryophyllene on Sperm Cryopreservation

Emanuela Ribeiro Moura  1 , Marlon de Araújo Castelo Branco  2 , Yndyra Nayan Teixeira Carvalho Castelo Branco  3 , José Adalmir Torres de Souza  4 , Isolda Márcia Rocha do Nascimento  5 , Marcimar Silva Sousa  6 , Nathyelle Maria Sousa de Oliveira  4 , Wanderson Gabriel Gomes de Melo  3 , Dayseanny de Oliveira Bezerra  3 , Marina Rebeca Soares Carneiro de Sousa  1 , Daniela Kunkel  1 , Camila Ernanda Sousa de Carvalho  1 , Maria Christina Sanches Muratori  3 , Antônio de Sousa Júnior  5 , Amilton Paulo Raposo Costa  3
Affiliations

Effect of β-caryophyllene on Sperm Cryopreservation

Emanuela Ribeiro Moura et al. JBRA Assist Reprod. .

Abstract

Objective: This study aimed to assess the impact of β-caryophyllene (BC) supplementation in the extender on the post-cryopreservation quality of semen from Dorper rams.

Methods: Six Dorper rams were utilized for semen collection over 16 weeks, with BC concentrations determined via the MTT test. Animals were divided into a control group and three treatment groups receiving BC at concentrations of 1.0mM, 2.0mM, and 3.0mM in the Trisegg yolk diluent. Semen was cryopreserved and stored in liquid nitrogen for at least 15 days. After thawing, in vitro assessments including CASA, acrosomal integrity, plasma membrane integrity, mitochondrial membrane potential, and thermo-resistance tests were conducted. Additionally, the TBARS assay was performed to evaluate oxidative stress.

Results: While BC supplementation did not significantly affect sperm motility, it notably improved mitochondrial potential and mitigated oxidative stress in cryopreserved ram semen.

Conclusions: Incorporating β-caryophyllene into the extender exhibited beneficial effects on the quality of Dorper ram semen post-cryopreservation, enhancing mitochondrial functionality and reducing oxidative stress.

Keywords: andrology; antioxidant; reproduction; sheep.

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Figures

Figure 1
Figure 1
Cell viability of post-thawed ovine sperm at concentrations 0.7; 1.0; 1.5; 2.0 and 3.0mM of β-caryophyllene (BC). Values are expressed as mean±standard deviation (SD). (**)p<0.01.
Figure 2
Figure 2
Kinetic parameters of post-thawed ovine sperm at concentrations 1.0; 2.0 and 3.0mM of β-caryophyllene (BC). Values are expressed as mean±standard deviation (SD). a) Linear curvilinear velocity (µm/s); b) Straightline velocity (µm/s); c) Average travel velocity (µm/s); d) Linearity (%); e) Rectilinearity (%); f) Oscillation (%); g) Lateral head displacement amplitude (µm); h) Tail beat frequency (Hz); and i) Hyperactivity (%). n = 16.
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