AI Article Synopsis
- * Five patients who progressed to adenocarcinoma were found to have DNA abnormalities in their prior biopsies, while a comparison group showed mostly normal DNA content, indicating a potential link between DNA changes and cancer risk.
- * The findings suggest that image cytometric DNA analysis could be more effective than traditional histological dysplasia in predicting which BE patients are at a higher risk of developing adenocarcinoma.
Article Abstract
Objectives: To examine DNA content abnormalities in patients with Barrett's esophagus (BE) who progress to esophageal adenocarcinoma, using image cytometric DNA analysis (ICDA) of formalin-fixed tissues.
Methods: Studies were performed on archived biopsies of BE patients' undergoing endoscopic surveillance before developing adenocarcinoma. A comparison group consisted of BE patients' free of cancer during a follow-up period of over 9 yr. Tissue sections were analyzed for the degree of dysplasia and for DNA content abnormalities, using image cytometry. Additional patients were also analyzed in a cross-sectional study of 56 BE cases with and without dysplasia, including 12 cases of adenocarcinoma.
Results: Five patients developed adenocarcinoma during follow-up and earlier biopsies obtained before cancer diagnosis showed specialized intestinal metaplasia (SIM) followed by low-grade dysplasia (LGD) in one, SIM followed by high-grade dysplasia (HGD) in one, LGD in two, and HGD in one case. All five showed some DNA abnormality at baseline or in interval biopsies. In the comparison group, five of seven patients showed normal diploid DNA at baseline and on follow-up biopsies. One patient initially had diploid DNA, but developed aneuploidy 11 yr later. Another case initially had aneuploidy, but was diploid on follow-up. Overall, DNA abnormalities were found in 13% of cases with SIM without dysplasia, 60% with LGD, 73% with HGD, and 100% with adenocarcinoma.
Conclusions: (i) Image cytometric DNA analysis is a useful method to examine DNA abnormalities in formalin-fixed tissues and may be more sensitive in predicting progression to adenocarcinoma than HGD. (ii) Histological dysplasia of any grade and DNA abnormalities, help identify BE patients at high risk for adenocarcinoma.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1572-0241.2004.30886.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Endosomal traffic disorders: a driving force behind neurodegenerative diseases.
Transl Neurodegener
December 2024
School of Pharmacy, China Medical University, Shenyang, 110122, China.
Endosomes are crucial sites for intracellular material sorting and transportation. Endosomal transport is a critical process involved in the selective uptake, processing, and intracellular transport of substances. The equilibrium between endocytosis and circulation mediated by the endosome-centered transport pathway plays a significant role in cell homeostasis, signal transduction, and immune response.
View Article and Find Full Text PDFLiver transplantation in a boy with TFAM mutation associated mtDNA depletion syndrome.
Orphanet J Rare Dis
December 2024
The Center for Pediatric Liver Diseases, Children's Hospital of Fudan University, 399 Wanyuan Road, Minhang District, Shanghai, 201102, China.
Mitochondrial transcription factor A (TFAM) deficiency may cause mtDNA depletion syndrome, which manifests as neonatal liver failure or primary ovarian insufficiency, hearing loss, seizures, and intellectual disability. Treatment focusing on symptomatic management, and the clinical prognosis remains poor. Here, we describe a novel case of TFAM mutation presenting with progressive neonatal cholestasis, hypoglycemia and abnormal amino acid profiling.
View Article and Find Full Text PDFGenetic analysis of partial duplication of the long arm of chromosome 16.
BMC Med Genomics
December 2024
Department of Pediatrics, Sichuan Provincial Woman's and Children's Hospital, The Affiliated Women's and Children's Hospital of Chengdu Medical College, Chengdu, China.
Background: Pure partial trisomy 16q12.1q22.1 is a rare chromosome copy number variant (CNV).
View Article and Find Full Text PDFFalse HbA value due to a rare variant of hemoglobin Petie Salpetriere coinherited with alpha thalassemia.
Adv Lab Med
December 2024
Department of Laboratory Service, Área de Gestión Sanitaria Norte de Huelva, Hospital de Riotinto, Minas de Riotinto, Huelva, Spain.
Objectives: To describe a variant hemoglobin that interferes with HbA analysis by cation exchange HPLC.
Case Presentation: A 78 years-old Spanish male patient visited the Internal Medicine Clinic for a routine check-up, with HbA included to screen for diabetes. He had suffered hypertension and dyslipidemia, and the patient had no previous symptoms suggestive of diabetes such as hyperglycemia, weight loss, polydipsia, polyuria or tiredness.
Chromosomal Mosaicism in the Placenta.
Clin Obstet Gynecol
December 2024
Menarini Silicon Biosystems, Bologna, Italy.
The clinical implications of placental chromosomal mosaicism can be challenging for patients and health care providers. Key considerations include the specific characteristics of the chromosomal abnormality (such as size, gene content, and copy number), the timing of the mosaicism's onset during embryogenesis or fetal development, the types of tissues involved, and the level of mosaicism (the ratio of normal to abnormal cells within those tissues). Genetic counseling can help inform patients about the chances of having a live-born child with a chromosomal abnormality.
View Article and Find Full Text PDFWant 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!