Extraction of DNA from plastinated tissues

Area of Science:

• Anatomical Sciences
• Molecular Biology
• Biotechnology

Background:

• Plastination offers long-term preservation of anatomical samples, eliminating formalin and allowing safe handling.
• Assessing deoxyribonucleic acid (DNA) integrity in plastinated tissues is crucial for future molecular applications.
• This study aimed to extract and evaluate DNA from plastinated tissues.

Purpose of the Study:

• To determine the feasibility of extracting intact DNA from silicone-plastinated tissues.
• To assess the quality and quantity of DNA obtained from deplastinated samples.
• To explore the potential applications of DNA from plastinated specimens.

Main Methods:

• Silicone-plastinated liver (Canis lupus familiaris) and skeletal muscle (Rattus norvegicus) samples were used.
• Tissues were deplastinated using 5% sodium methoxide in methanol.
• DNA was extracted using two protocols, quantified by fluorometry, and assessed by gel electrophoresis.

Main Results:

• A high yield of intact DNA was successfully obtained from the deplastinated samples.
• The extracted DNA was suitable for subsequent molecular analyses.
• Plastinated tissues, when processed with this method, retain DNA integrity.

Conclusions:

• Intact DNA can be reliably extracted from silicone-plastinated tissues.
• This technique facilitates retrospective studies using archived anatomical specimens.
• Applications span basic, clinical, forensic, and epidemiological sciences, including real-time PCR.