17 cases of cancer and 18 cases of adenomatous polyp in the large intestine were subjected to lipid-chemical studies of their tissues in order to clarify the biochemical differences between malignant neoplastic growth and benign growth. Cancerous and adenomatous polypous tissues were collected by biopsy or surgical operation together with the respective control tissues. One part of the total lipid extracted from each tissue was separated into triglyceride and phospholipid fraction by a thin-layer chromatography (TLC). The fatty acid composition and content of each lipid fraction were measured by a gas-liquid chromatography (GLC). When the fatty acid composition of a phospholipid was expressed in terms of the deviation rate, that of C14:0 was remarkably increased and that of C20:4 was remarkably decreased in the cancerous cases as compared with the respective values of the cases of adenomatous polyp. More definite differences were recognized between the cancerous cases and the cases of adenomatous polyp, when the ratio of the deviation rate of C14:0 to that of C20:4 was calculated in each case. Namely, the ratios distributed between 2.064 and 4.125 in 10 cancerous cases, and between 0.393 and 1.856 in 16 cases of adenomatous polyp, indicating the biochemical differences between cancerous tissues and adenomatous polypous tissues.

Download full-text PDF

Source
http://dx.doi.org/10.1620/tjem.118.suppl_117DOI Listing

Publication Analysis

Top Keywords

cases adenomatous
16
adenomatous polyp
16
adenomatous polypous
12
polypous tissues
12
cancerous cases
12
differences cancerous
8
cancerous adenomatous
8
large intestine
8
cases
8
biochemical differences
8

Similar Publications

The challenge of preventing gastric cancer in patients under surveillance for familial adenomatous polyposis.

Fam Cancer

January 2025

Department of Gastroenterology and Hepatology, Amsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology Endocrinology Metabolism, Cancer Center Amsterdam, Amsterdam, The Netherlands.

Several extra-colonic manifestations, including duodenal polyposis and desmoid tumors, are well-described manifestations in familial adenomatous polyposis (FAP). More recently, an increase in gastric cancer diagnoses has been observed in FAP. This case series presents nine patients with FAP who were diagnosed with gastric cancer at our FAP expertise center, of whom eight were diagnosed between 2017 and 2023, while before 2017 the only diagnosis of gastric cancer was in 2001.

View Article and Find Full Text PDF

Faecal Metabolome Profiles in Individuals Diagnosed with Hyperplastic Polyps and Conventional Adenomas.

Int J Mol Sci

December 2024

Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias, Consejo Superior de Investigaciones Científicas (IPLA-CSIC), 33011 Oviedo, Spain.

Colorectal cancer (CRC) development is a gradual process in which progressive histological alterations of the intestinal mucosa damage occur over years. This process can be influenced by modifiable external factors such as lifestyle and diet. Most CRC cases (>80%) originate from conventional adenomas through the adenomatous pathway and usually harbour dysplastic cells, whereas the serrated pathway is less frequent (<20% cases) and comprises hyperplastic polyps and other polyps containing dysplastic cells.

View Article and Find Full Text PDF

Background: A ground glass nodule (GGN) is a radiologically descriptive term for a lung parenchymal area with increased attenuation and preserved bronchial and vascular structures. GGNs are further divided into pure versus subsolid lesions. The differential diagnosis for GGNs is wide and contains a malignant possibility for a lung adenocarcinoma precursor or tumor.

View Article and Find Full Text PDF

[Follow-up study on screening for early colorectal cancer in Shipai, Dongguan City, China].

Zhonghua Wei Chang Wai Ke Za Zhi

December 2024

Department of Gastrointestinal Endoscopy, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou510655, China Biomedical Innovation Center, the Sixth Affiliated Hospital, Sun Yat-sen University,Guangzhou510655, China.

To examine follow-up data of different subgroups in order to further evaluate the performance and practical value of community colorectal cancer screening by detection of stool methylation syndecan-2 gene (m) among residents of Shipai Town, Dongguan City. This was an observational study. From May 2021 to February 2022, the Shipai Town government of Dongguan City completed screening for colorectal cancer by detection of stool m in 10,708 residents from 18 villages who had met the initial screening criteria and been selected using whole population sampling.

View Article and Find Full Text PDF

Desmoid tumour: a rare cause of congenital unilateral calf enlargement mimicking calf hypertrophy.

Neuromuscul Disord

December 2024

The John Walton Muscular Dystrophy Research Centre (JWMDRC), Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom; Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom; Newcastle University Translational and Clinical Research Institute, Newcastle upon Tyne, United Kingdom.

Desmoid tumours, also known as aggressive fibromatosis, are rare tumours derived from mesenchymal stem cells, accounting for only 0.03 % of all tumours. While 85-90 % of cases are sporadic, desmoid tumours can occasionally be associated with Gardner syndrome (or Familial Adenomatous Polyposis), which is linked to variants in the tumour suppressor gene, APC (adenomatous polyposis coli) gene on chromosome 5.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!