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Related Concept Videos

Testes: Histology01:27

Testes: Histology

A tough, fibrous membrane, the tunica albuginea, covers the testes, extending inward to form fibrous partitions or septa, dividing them into internal compartments called lobules. Each lobule has 1 to 3 tightly coiled seminiferous tubules where sperm production occurs. These tubules merge into a tubular network at the back of the testis, known as the rete testis. It connects to 15 to 20 efferent ductules, leading to the epididymis.
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Isolate Cell-Type-Specific RNAs from Snap-Frozen Heterogeneous Tissue Samples without Cell Sorting
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Validation of reference genes in human testis and ejaculate.

M C O Cavalcanti1, K Failling, H C Schuppe

  • 1Department of Urology, Pediatric Urology and Andrology, Justus Liebig University, Giessen, Germany.

Andrologia
|July 1, 2011
PubMed
Summary
This summary is machine-generated.

Four reference genes (ACTB, GAPD, HSPCB, ATP5B) showed statistically insignificant expression variability in male reproductive tissues. This supports their use in gene expression studies, but validation is crucial for specific experimental models.

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Area of Science:

  • Reproductive biology
  • Molecular genetics
  • Biomarker discovery

Background:

  • Accurate gene expression analysis relies on stable reference genes.
  • Identifying suitable reference genes in male reproductive tissues (ejaculate, testicular) is critical for research accuracy.

Purpose of the Study:

  • To evaluate the expression stability of four candidate reference genes: Beta-actin (ACTB), glyceraldehyde-3-phosphate-dehydrogenase (GAPD), Heat Shock Protein 1, beta (HSPCB), and Adenosine Triphosphate subunit 5 beta (ATP5B).
  • To determine the suitability of these genes for gene expression studies in human ejaculates and testicular tissues from fertile and subfertile men.

Main Methods:

  • Real-time quantitative reverse transcription PCR (qRT-PCR) was employed to measure gene expression.
  • Statistical analyses, including Wilcoxon-Mann-Whitney test and two-way ANOVA, were used to assess gene expression stability and variability.

Main Results:

  • No statistically significant differences in gene expression variability were observed between fertile and subfertile donors.
  • No significant random effects were detected within probands or between repetitions.
  • All four investigated genes (ACTB, GAPD, HSPCB, ATP5B) exhibited non-significant variability, indicating potential suitability.

Conclusions:

  • ACTB, GAPD, HSPCB, and ATP5B are potentially appropriate reference genes for gene expression studies in human ejaculates and testicular tissues.
  • Reference gene selection requires individual validation for specific experimental models and sample types to ensure accuracy.