Elaheh Gholami Roudmajani; Nasim Hayati Roodbari; Mahdi Goudarzvand; Kazem Parivar
Volume 22, Issue 2 , 2020
Abstract
Background: Prenatal maternal lipopolysaccharide (LPS) exposure causes behavioral deficits in adulthood. LPS-exposure cause oxidative damage and cytokines production. In contrast, astaxanthin (Ast) is a carotenoid antioxidant that shows protective effects through its antioxidant capacity.
Objectives: This ...
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Background: Prenatal maternal lipopolysaccharide (LPS) exposure causes behavioral deficits in adulthood. LPS-exposure cause oxidative damage and cytokines production. In contrast, astaxanthin (Ast) is a carotenoid antioxidant that shows protective effects through its antioxidant capacity.
Objectives: This study investigates the effect of prenatal treatment with astaxanthin on the behavioral deficit (including sexual, depressive, and anxiety-like behavior) caused by prenatal maternal LPS in adult male offspring.
Methods: Pregnant mice were randomly divided into 4 groups: (1) control, (2) LPS: injecting with LPS (20 µg/kg, sc.) on gestation day 11, (3) Ast: receiving astaxanthin (4 mg/kg for 3 days, i.p.) on 11 - 13th gestation day, (4) LPS+Ast: injecting with LPS (20 µg/kg, sc.) on gestation day 11 and receiving astaxanthin (4 mg/kg for 3 days, i.p.) on 11 - 13th gestation day. Then in each group, 23 day old male offspring (3 and 12 male children from each mother and group, respectively) were separated from mothers and then the sexual, depressive and anxiety-like behaviors were examined in adult male mice.
Results: Findings showed that prenatal LPS-exposed mice had more anxiety and spent less time in open arms of the elevated plus-maze test (P < 0.05). In addition, it decreased sexual behaviors, the amount of which was significant in the number of sniffing, following behaviors (P < 0.01). Also, there was no significant difference between different groups in the forced swimming test (P < 0.05). On the other hand, prenatal treatment with astaxanthin significantly elevated the percentage of open arm time and open arm entry, without altering in locomotor activity (P < 0.05). Also, it significantly increased sexual behavior in Ast and LPS+Ast groups (P < 0.01).
Conclusions: The obtained results suggest that prenatal maternal exposure to LPS impaired several aspects of male sexual behavior and resulted in behavioral deficits in adulthood, while astaxanthin has an antianxiety effect and improves the deficits of sexual behavior presumably via its antioxidant property.
Zahra Farahani; Kazem Parivar; Nasim Hayati Roodbari; Mona Farhadi
Volume 22, Issue 2 , 2020
Abstract
Background: Cancer is currently the second leading cause of death worldwide that is originated from cell growth and proliferation without control. Acute lymphoblastic leukemia (ALL) is one of the types of leukemia that affects lymphocyte maturation and it is common among children. Silver nanoparticles ...
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Background: Cancer is currently the second leading cause of death worldwide that is originated from cell growth and proliferation without control. Acute lymphoblastic leukemia (ALL) is one of the types of leukemia that affects lymphocyte maturation and it is common among children. Silver nanoparticles are considered one of the targeted chemotherapy methods by creating cytotoxicity.
Objectives: In this research, a comparative study of cytotoxic effect of silver nanoparticles was evaluated on human lymphocytes and HPB-ALL cell line as an in vitro study.
Methods: In this experimental study, lymphocytes and HPB-ALL cell line were exposed to silver nanoparticles at RPMI 1640 medium culture in order to assess toxicity for 24 hours. To this aim, MTT assay was used to evaluate the toxicity of the silver nanoparticles. DNA fragmentation and apoptosis were evaluated by Gel Electrophoresis and Flow Cytometry, respectively. Moreover, quantitative PCR was performed on bax, bcl-2, and caspase-9 genes.
Results: The results of MTT assay showed IC50 values of silver nanoparticles were 5.87 and 2.68 ?g/mL for lymphocytes and HPB-ALL cell line, respectively. The results showed that silver nanoparticles could split DNA of the HPB-ALL cell line more than DNA of the lymphocytes during DNA fragmentation. Flow Cytometry results indicated that the early apoptosis was 6.04% and 22.75% in lymphocytes and HPB-ALL cell line, respectively. Moreover, Q-PCR results showed a significant up-regulation of caspase-9 and bax genes and downregulation of bcl-2 gene in comparison to the control group.
Conclusions: The silver nanoparticles had cytotoxic effects on the lymphocytes and HPB-ALL cell line. The results showed that the silver nanoparticle had a significant cytotoxic effect on HPB-ALL cell line.
