Ovozoa: Journal of Animal Reproduction
Vol. 15 No. 2 (2026): Ovozoa: Journal of Animal Reproduction

Histological structure of rat preantral follicles after vitrification using date juice as a natural extracellular cryoprotectant

Nova Anita (Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16242, Indonesia)
Aisyah Safrina (Master’s Program in Biomedical Sciences, Faculty of Medicine, University of Indonesia, Salemba 10430, Indonesia)
Ahmad Aulia Jusuf (Department of Histology, Faculty of Medicine Universitas Indonesia, Jakarta 10430, Indonesia)
Rahimi Syaidah (Department of Histology, Faculty of Medicine Universitas Indonesia, Jakarta 10430, Indonesia)



Article Info

Publish Date
01 Aug 2026

Abstract

Cold shock, cryoinjury, and apoptosis remain major challenges in ovarian vitrification because they compromise the structural integrity of follicular cells. Date juice (DJ), which contains natural sugars and antioxidant compounds, may provide cryoprotective effects during vitrification. This study evaluated the effectiveness of DJ combined with ethylene glycol (EG) in preserving the structural integrity of preantral follicles. Ovaries were collected from 24 female Sprague–Dawley rats and assigned to eight groups: CN and CV (0.9% NaCl), CT1 (7.5% EG), CT2 (15% EG), T1 (7.5% EG + 7.5% DJ), T2 (7.5% EG + 15% DJ), T3 (15% EG + 7.5% DJ), and T4 (15% EG + 15% DJ). After vitrification, ovarian sections were stained with hematoxylin and eosin (H&E). Follicular integrity was evaluated histologically as the percentages of intact and non-intact primordial, primary, and secondary follicles. Statistical analysis (P ≤ 0.05) showed significant differences between the non-vitrified and vitrified control groups across all follicle stages. T1 yielded the highest percentage of intact primordial follicles (95.851%) and the lowest percentage of non-intact primordial follicles (4.149%). T2 produced the best outcomes for primary and secondary follicles, with intact follicle percentages of 90.343% and 87.158%, respectively. Overall, combining EG (7.5% or 15%) with 7.5% DJ improved follicular integrity compared with EG alone. These findings suggest that DJ has potential as a natural extracellular cryoprotectant for ovarian tissue vitrification.

Copyrights © 2026






Journal Info

Abbrev

OVZ

Publisher

Subject

Agriculture, Biological Sciences & Forestry Veterinary

Description

Ovozoa Journal of Animal Reproduction (Ovozoa J Anim Reprod) published original articles, review articles, and case reports in Indonesian or English, in the scope of veterinary reproduction and animal reproductive biotechnology from researchers, lecturers, students, and practitioners around ...