Genetic study of different genes in the formation and metabolism of neurosteroids and cholesterol.

Genetic study of different genes in the formation and metabolism of
neurosteroids and cholesterol.
Jenan M. Mohsen Al Mosawi1 , Alaa Abdul Razzaq Al Nuaimi2, Farah Riadh
Zayny3
1Department of Pharmaceutics, Collage of Pharmacy, University of Karbala, Iraq, 2Ministry
of health, Karbala health directorate, Imam Al-Hussein Medical-City, iraq, 3 Department of
Pharmaceutical Biosciences , Faculty of Pharmacy, Uppsala university, sweden.
Keywords: nurosteroid ,gene, PCR, cholesterol,esterogen.
Received (MAY) , Accepted (June).
Abstract :
Some of the neurodegenerative diseases is Parkinson’s disease and Alzheimer’s
disease, which can arise due to damage to nerve cells in the elderly. This study
examines the different genes that express enzymes for the formation and metabolism
of neurosteroids and cholesterol. The purpose of the study is to investigate which
genes are expressed in the CNS, and that could affect the functions of the brain via the
formation and metabolism of neurosteroids. The study used the human cell line SHSY5
as the model for neuronal cells. By knowing which genes nerve cells express
would in future be able to study the effect of different drugs can have in the formation
of steroid metabolites that affect brain functions.
Methods used in this study, RT-PCR (reverse transcription polymerase chain reaction)
and gel electrophoresis to qualitatively examine gene expression in neuroblastoma.
Results from the study suggested that SH-SY5Y cells express some but not all genes
involved in the formation and metabolism of steroid hormones and cholesterol. PCR
experiments, showed expression of the genes for the enzymes CYP19A1 and 17-
hydroxysteroid dehydrogenase (17β-HSD) and the estrogen receptor ER-β.
One conclusion that can be drawn from the results of this study is to neuroblastoma
cell line SH-SY5Y may constitute a possible cell model for future research on
hormonal effects and the effect of various drugs on the formation of neurosteroids that
influence brain functions.
The purpose of this study is to investigate whether the SH-SY5Y cells (neuroblastoma
cells) can express genes required for the formation and metabolism of cholesterol and
steroid hormones (neurosteroids). The study also intends to investigate which genes
can participate and which is expressed in the formation of steroid metabolites that
affect brain functions.

دراسة وراثية عن الجينات المختلفة في تشكيل والتمثيل الغذائي للستيرويدات العصبية
والكوليسترول.
. جنان محمد محسن آلموسوي 1 علاء عبد الرزاق محمد النعيمي 2 ، فرح رياضزيني 3
1 فرع الصيدلانيات، كلية الصيدلة، جامعة كربلاء، العراق، 2 وزارة الصحة ،دائرة صحة كربلاء ، مدينة
الامام الحسين الطبية ، العراق , 3 قسم العلوم البيولوجية ، كلية الصيدلة، جامعة أوبسالا، السويد.

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