List of Articles Stomach

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  1 - Cancer Diagnosis in Endoscopic Images using Discrete Wavelet Transform
  Sinan Ghanem Mehran Emadi
  10.30486/MJTD.1402.901794
  Stomach cancer destroys the tissues of the digestive system. This cancer is one of the deadliest diseases. Endoscopic imaging is used to diagnose cancer. In endoscopy, the diagnosis of gastric cancer is difficult due to the similarity of the tissues, the low contrast of More

  Stomach cancer destroys the tissues of the digestive system. This cancer is one of the deadliest diseases. Endoscopic imaging is used to diagnose cancer. In endoscopy, the diagnosis of gastric cancer is difficult due to the similarity of the tissues, the low contrast of the image and the background. In order to overcome these problems, discrete wavelet transform has been used to detect stomach cancer. In the proposed method, there are data registration, data preprocessing, feature extraction, dimensionality reduction, and classification. The features are extracted with the help of discrete wavelet transform and then dimension reduction is done with the help of principal component analysis. The proposed approach was evaluated on datasets collected from five classes, including gastritis, ulcer, esophagitis , bleeding, and healthy. Jungle Tassafi has a value above 99% in all evaluation criteria, which represents the advantages of this category. The results of this research show that this method is accurate and reliable in diagnosis. Manuscript profile
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  2 - The Study of Histology and Histometry Changes in the Stomach and Intestine of Male Mice Consuming Nano-Styrene Microplastics
  Mohammad Reza Ghafari Manesh Esmail Fattahi Fereshteh Mirmohammadrezaei Sima Mashayekh
  10.22034/ascij.2024.2003866.1573
  Today, microplastics are among the most important environmental pollutants that have attracted the attention of scientists. These plastic particles enter the food chain by being swallowed by animals and cause serious damage to humans and animals. The purpose of this res More

  Today, microplastics are among the most important environmental pollutants that have attracted the attention of scientists. These plastic particles enter the food chain by being swallowed by animals and cause serious damage to humans and animals. The purpose of this research is to investigate the effect of polystyrene microplastics on the digestive system of mammals. The rats were divided into 3 groups of 6; the sham group received 200 microliters of distilled water once a day for 30 days. The first group received 200 microliters of nano-styrene once a day with a dose of 0.1mg⁄kg for 30 days. The second group received 200 microliters of nano-styrene once a day. He received a dose of 0.5 mg⁄kg for 30 days. The day after the last gavage, the animal was anesthetized with chloroform, and the intestinal and stomach samples were stained for histological examination in 10% buffered formalin solution with hematoxylin-eosin staining method. TUKEY test was used for statistical analysis and comparison between groups. All the calculations were done using Prism software and the significance level of the tests P was considered less than 0.05. The statistical findings show a decrease in the diameter of the submucosa, the number of lining cells, and the number of epithelial cells in the experimental group 2 compared to the control group. The height of the intestinal villi and The stomach showed an increase in experimental group 2 compared to the sham group. The results of this study show that the effects of nano-styrene depend on the concentration and as the concentration increases, it will leave more destructive effects on the intestines and stomach. Manuscript profile