Related Experiment Video
Updated: May 30, 2026
04:49
Microscopic Varicocelectomy under Local Anesthesia as the Treatment of Varicocele
Published on: October 25, 2024
Comparative study of gene expression in patients with varicocele by microarray technology
A Oliveira1, A Neto, C Almeida
1Department of Urology, Hospital Geral Sto António, Porto, Portugal.
Andrologia
|August 19, 2011
Summary
Varicocele surgery impacts gene expression in testicular tissue. Post-surgery, genes related to normal spermatogenesis increased, while stress-related genes decreased, suggesting improved testicular function.
Area of Science:
- Reproductive Biology
- Molecular Genetics
Background:
- Varicocele is a common cause of male infertility.
- Understanding gene expression changes after varicocele treatment is crucial for improving reproductive outcomes.
Purpose of the Study:
- To analyze gene expression profiles in testicular biopsies before and after varicocele surgery.
- To validate differential gene expression using real-time PCR.
Main Methods:
- Microarray technology was used to assess gene expression in paired testicular biopsies (pre- and post-surgery).
- Real-time PCR was employed to validate the expression levels of selected genes.
Main Results:
- Microarray analysis revealed significant changes in gene expression post-surgery, with hundreds of genes showing increased or decreased levels.
- Real-time PCR confirmed differential expression of five key genes: MT1M, PHLDA1, and INSL3 showed decreased expression, while CCIN and PRM2 showed increased expression.
Conclusions:
- Varicocele surgery leads to altered gene expression in testicular tissue.
- The observed changes suggest a reduction in stress-related gene expression and an increase in genes vital for normal spermatogenesis post-surgery.
Related Concept Videos
02:34DNA Microarrays
Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
01:42What is Gene Expression?
Overview
Gene expression is the process in which DNA directs the synthesis of functional products, that is, proteins. Cells can regulate gene expression at various stages. It allows organisms to generate different cell types and enables cells to adapt to internal and external factors.
Genetic Information Flows from DNA to RNA to Protein
A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is made up of nucleotides and proteins consist of amino...
Gene expression is the process in which DNA directs the synthesis of functional products, that is, proteins. Cells can regulate gene expression at various stages. It allows organisms to generate different cell types and enables cells to adapt to internal and external factors.
Genetic Information Flows from DNA to RNA to Protein
A gene is a stretch of DNA that serves as the blueprint for functional RNAs and proteins. Since DNA is made up of nucleotides and proteins consist of amino...
00:59Gene Therapy
Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be inserted. The...