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Showing 3 results for Methamphetamine

Tahereh Mirjalili, Seyed Mehdi Kalantar, Maryam Shams Lahijani, Mohamad Hasan Sheikhha, Alireza Talebi,
Volume 11, Issue 1 (4-2013)
Abstract

Background: Methamphetamine (MA) is a potent psychomotor stimulant with high abuse and addictive potential. MA is a neurotoxic drug which is widely abused by females of childbearing age, raising serious public health concerns in terms of exposure of the fetus to the drug. Neurotoxic effects of MA on adult are well known, such as dopaminergic nerve terminal degeneration and cell death in regions of brain in some doses.
Objective: In the present study, we examined effect of prenatal MA exposure on mouse fetuses.
Materials and Methods: In this study, forty 8-12 week-old NMRI female mice were used which were mated with male mice in serial days. When sperm plug was observed it was designated as gestational day (GD) 0. Pregnant mice were individually housed in plastic cages. Pregnant mice were divided into four groups: in first group 10 mg/kg /day MA, in second group 5 mg/kg /day MA and in third group saline were injected subcutaneously from GD 6 to GD 14, corresponding to organogenesis period, while fourth or control group were without injection. On GD 14 fetuses were removed and accomplished chromosome preparation from fetal liver. Then fetal were fixed in formalin for brain hematoxilin and eosine staining and TUNEL assay.
Results: We observed morphological abnormality including exencephal fetus in 5mg/kg MA group and premature fetuses in 10 mg/kg MA group. Also brain histological study showed subarachnoid hemorrhage in fetal brain in both experimental groups. Fetal liver karyotyping analysis was normal in fetuses of all groups and TUNEL assay in fetal striatum did not show significant difference in number of apoptotic cells between groups.
Conclusion: From our results, it could be concluded that chronic abuse of MA by pregnant females during organogenesis period can cause teratogenic effect and brain hemorrage in fetus.
Arezoo Khoradmehr, Amirhossein Danafar, Iman Halvaei, Jalal Golzadeh, Mahya Hosseini, Tahereh Mirjalili, Morteza Anvari,
Volume 13, Issue 1 (1-2015)
Abstract

Background: Methamphetamine (MA) is one of most common illicit drugs which were reported that nearly half of MA consumers are women. MA can cross through placenta and affects pregnancy and fetus development.
Objective: Our aim was to evaluate effects of injected MA on crown-rump length, head and placental circumference, body weight, histological changes and apoptosis in fetus.
Materials and Methods: Twenty-four NMRI pregnant mice were randomly divided into five groups. First, second and third groups were injected intraperitoneally 10 mg/kg/day MA during gestational days (GD): GD1-7, GD8-14, and GD1-14, respectively. Forth group, as sham, was injected saline from GD1-14, and finally control which was received neither MA nor saline. On GD15 cervical dislocated pregnant mice, fetus and placenta were weighed and fetus crown-rump length was measured. Hematoxylin and Eosin staining and TUNEL assay were applied to assess histological changes and apoptosis respectively.
Results: Fetus body weight and crown-rump length showed significant decrease in third compared to first and second groups (p≤0.001). There were significant differences in head circumference in control and sham compared to third group (0.5 (0.5-0.6), 0.6 (0.5-0.8), 0.4 (0.4-0.5) cm respectively, p≤0.001). Also fetus that treated with MA showed lower placenta circumference compared to control and sham groups. Histological changes such as exencephaly, hemorrhage and immature fetus were observed in second and third groups. Apoptotic cells in second and third groups were higher than controls, but differences were not significant.
Conclusion: It seems MA abuse during pregnancy can cause morphological and histological changes in mice fetus but the exact mechanism remains unclear.
Mojdeh Sabour, Arezoo Khoradmehr, Seyyed Mehdi Kalantar, Amir Hossein Danafar, Marjan Omidi, Iman Halvaei, Ali Nabi, Saeed Ghasemi- Esmailabad, Ali Reza Talebi,
Volume 15, Issue 3 (5-2017)
Abstract

Background: Methamphetamine (MA) was shown to have harmful effects on malereproductive system.
Objective: To investigate probable effects of daily administration of MA on spermparameters and chromatin/DNA integrity in mouse.
Material and Methods: Thirty-five NMRI male mice were divided into five groupsincluding low, medium, and high dosage groups which were injectedintraperitoneally with 4, 8 and 15 mg/kg/day for 35 days, respectively. Normalsaline was injected in sham group and no medications were used in control group.Then, the mice were killed and caudal epididymis of each animal was cut and placedin Ham’s F10 medium for sperm retrieval. To evaluate sperm chromatinabnormalities, the aniline blue, toluidine blue and chromomycine A3 were used. Forsperm DNA integrity and apoptosis, the acridine orange, sperm chromatindispersion, and TUNEL assay were applied. For sperm morphology, Papanicolaoustaining was done
Results: Normal morphology and progressive motility of spermatozoa decreased inmedium and high dosage groups in comparison with the control group (p=0.035).There was a significant increase in rate of aniline blue, toluidine blue, andchromomycine A3 positive spermatozoa in high dosage group. In a similar manner,there was an increase in rates of acridine orange, TUNEL and sperm chromatindispersion positive sperm cells in high dosage group with respect to others.
Conclusion: MA abuse in a dose-dependent manner could have detrimental effectson male reproductive indices including sperm parameters and spermchromatin/DNA integrity in mice

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