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Comparative evaluation of amniotic fluid as an alternative to fetal bovine serum in the maintenance of Leishmania major and Toxoplasma gondii

Authors
  • Rahmani, Zahra1
  • Faridnia, Roghiyeh1
  • Kalani, Hamed2
  • Ghanei, Naryan1
  • Fakhar, Mahdi1, 1
  • Zamanian, Marzieh1, 1
  • Keighobadi, Masoud1
  • Tabaripour, Rabeeh1
  • 1 Mazandaran University of Medical Sciences,
  • 2 Golestan University of Medical Sciences,
Type
Published Article
Journal
Parasitology Research
Publisher
Springer-Verlag
Publication Date
Jan 25, 2021
Pages
1–7
Identifiers
DOI: 10.1007/s00436-021-07058-2
PMID: 33491113
PMCID: PMC7829060
Source
PubMed Central
Keywords
Disciplines
  • Protozoology - Original Paper
License
Unknown

Abstract

This study aimed to evaluate the efficacy of amniotic fluid (AF) as an alternative to fetal bovine serum (FBS) in the maintenance of Leishmania major promastigotes and Toxoplasma gondii tachyzoites. AF was collected by an obstetrician using sterile syringes during a cesarean section. The culture medium was supplemented with 5 different concentrations of FBS or AF including 2, 5, 10, 20, and 30%. These concentrations were used to maintain both mentioned parasites. L. major was maintained at temperatures 4 and 24 °C and examined once a week for 4 weeks, while T. gondii was maintained at temperatures 4, 24, and 37 °C and examined at hours 24, 48, 72, and 96. For L. major , at both 4 and 24 °C, we observed no significant difference between FBS and AF on day 7. However, on days 14, 21, and 28, the difference between FBS and AF was significant at both temperatures. For T. gondii , no significant difference was observed between FBS and AF at hour 24 and all temperatures. However, this difference was significant at hours 48, 72, and 96 and all temperatures. According to our results, although FBS had a greater efficacy than AF in the growth of L. major and the survival of T. gondii , the number of promastigotes increased over time in AF-containing medium and the number of tachyzoites reduced slowly with a mild slop. Therefore, AF can be a potential alternative to FBS.

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