• 한국동물위생학회지
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• 제41권3호
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• pp.197-202
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• 2018

Helicobacter suis is a gram negative bacterium and colonizes in porcine stomach. It causes gastric diseases in the stomach and plays a significant role in daily weight gains in pigs. Recent studies about one of potential sources of human gastric diseases. Therefore, this study was conducted to compare histopathological lesions and molecular detection of Helicobacter suis in the pyloric mucosa of porcine stomachs transferred from slaughterhouses, based on gross and histological examinations and a PCR assay. A total 90 stomach samples were investigated to record gastric lesion scores by characteristic gastric lesions, followed by routine H & E and Warthin-Starry silver staining to detect Helicobacter-like organisms. For PCR assay, H. suis specific primers and conditions are used. Sixty-one samples (67.8%) showed gross gastric lesions, of which 38 samples (40.2%) presented grade 1, 12 samples (13.3%) presented grade 2, and 11 samples (12.2%) presented grade 3, respectively. In Warthin-Starry silver stain, Helicobacter-like organisms were detected from 11 samples (12.2%) with 4 samples (4.4%) for grade 0, 5 samples (5.6%) for grade 1, 1 sample (1.1%) for grade 2 and 1 sample (1.1%) for grade 3, respectively. The PCR resulted positive in 37 samples (41.1%) with 14 samples (15.6%) for grade 0, 14 samples (15.6%) for grade 1, 3 samples (3.3%) for grade 2 and 6 samples (6.7%) for grade 3, respectively. Positive samples for both examinations were 5 samples (5.6%). The result suggested that it should be considered as one of factors causing a gastric disease in pigs. Also, it could be acknowledged to research fundamental aspects of Helicobacter-induced gastritis in human as an animal model.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제27권1호
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• pp.62-70
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• 2024

Purpose: Choledochal cysts are congenital anomalies that occur as localized cystic or fusiform dilatations of the biliary tree. Reflux and stasis of pancreatic enzymes in the biliary duct may relate to the development of intestinal metaplasia which might be an important factor related to the carcinogenesis of choledochal cyst, thus the expression of beta-catenin in the metaplastic epithelium might be associated with malignant transformation of choledochal cyst epithelium. Methods: This study was conducted at a tertiary care pediatric center between October 2014 and March 2017. Forty patients were evaluated for epithelial lining, mural ulceration, fibrosis, inflammation, and metaplasia. Results: Out of 40, 12 cases (30.0%) were the infantile age group and 28 cases (70.0%) were in the classic pediatric group. Ulceration was classified as grade 0 (14 cases, 35.0%), grade 1 (17 cases, 42.5%), or grade 2 (nine cases, 22.5%). Inflammation was classified as grade 0 (2 cases, 5.0%), grade 1 (26 cases, 65.0%), or grade 2 (12 cases, 30.0%). Fibrosis was classified as grade 0 (five cases, 12.5%), grade 1 (11 cases, 27.5%), grade 2 (17 cases, 42.5%), or grade 3 (seven cases, 17.5%). Metaplasia was noted in five (12.5%) out of 40 cases. All choledochal cysts with metaplasia showed beta-catenin nuclear positivity on immunohistochemistry and were followed up. Conclusion: This study emphasizes the importance of detailed histopathological examination and documentation of metaplastic changes. Metaplasia was associated with beta-catenin nuclear positivity. These findings suggest a potential role for beta-catenin as a marker of metaplastic changes in choledochal cysts.

• Asian Pacific Journal of Cancer Prevention
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• 제15권20호
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• pp.8847-8853
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• 2014

The aim of this study was to establish the expression and localization of E-cadherin and ${\beta}$-catenin in oral squamous cell carcinomas (OSCC) so that we could correlate the findings with prognostic-relevant histopathological variables. E-cadherin and ${\beta}$-catenin expression in normal oral epithelia and in oral squamous cell carcinomas was examined immunohistochemically, and associations with histopathological differentiation and prognosis were then analyzed in 33 patients who had been operated on for OSCC. E-cadherin expression was found in (82%) of the squamous cells of well differentiated OSCC, (61%) of moderately differentiated and (39%) of poorly differentiated. E-cadherin expression was significantly associated with histological grade (p=0.000). No nuclear staining was detected. In (19.5%) of the cells E-cadherin localized in the cytoplasm, with no correlation to the histological grade (p=0.106). ${\beta}$-Catenin expression was found in 87% of the squamous cells of well differentiated OSCC, 67% of moderately differentiated and 43% of poorly differentiated, the expression was significantly associated with histological grade (p=0.000). the nuclear ${\beta}$-Catenin expression appeared in 3.3% of the cells and it was correlated to the histological grade (p=0.000). In (23.5%) of the cells ${\beta}$-Catenin localized in the cytoplasm, with correlation to the histological grade (p=0.002). According to this study the expression of ${\beta}$-catenin and E-cadherin were independent prognostic factors for histological grade. E-cadherin was closely linked to ${\beta}$-catenin expression in OSCC (p=0.000) and to tumor differentiation. That reflects a structural association and the role of both in tumor progression.

• 대한임상검사과학회지
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• 제46권3호
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• pp.91-98
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• 2014

Primary gastric lymphoma (PGL) is derived from mucosa-associated lymphoid tissue (MALT) and it differs from nodal lymphoma in histologic features and biologic behavior. Recent studies have showed that Helicobacter pylori (H.pylori ) infection is closely related to the development of low grade gastric lymphoma, and eradication of the infection induces regression of the tumor. H. pylori infection is known to be important to the development of gastric MALT lymphoma. The aim of this study was to elucidate the histopathological behavior of PGL according to the concept of MALT and to compare the predictive value of tests frequently used for diagnosis of H. pylori. The histological features of gastric lymphoma arising from MALT are the replacement of glands by uniform dense infiltration of centrocyte-like cells in the lamina propria and lymphoidepithelial lesion. H. pylori-associated histologic changes of neutrophilic infiltration, lymphoid follicle or aggregates formation and intestinal metaplasia, and H. pylori immunoreactivity were analyzed. Detection of H. pylori in chronic active gastritis and peptic ulcer suggests a possible role of H. pylori in the pathogenesis. Giemsa, Toluidine blue and Long H&E stains were used in H. pylori detection. Histopathological examination of gastric biopsy specimens revealed lymphoepithelial lesions pathognomonic of MALT lymphoma, and immunohistochemical staining for CD20 was diffusely positive. CD3 was positive in reactive T cells. PAX-5 was negative except the follicle. Bcl-2, cytokeratin, Ki-67, and c-myc were positive. The findings may indicate a predictable transition of low grade to high grade, and c-myc may be used as a valuable marker before molecular pathology diagnosis.

• Journal of Korean Neurosurgical Society
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• 제57권6호
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• pp.469-472
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• 2015

Undifferentiated sarcomas are rarely identified in the intracranial region. A 23-year-old man was admitted with a chief complaint of headache. Initial magnetic resonance images showed signs of low-grade glioma in the frontal lobe. Stereotactic biopsy was performed, and a diagnosis of diffuse astrocytoma was confirmed. Three months later, the patient presented with a high-grade tumor as seen on imaging studies. He underwent total resection of the tumor and histopathological tests identified an undifferentiated sarcoma. The patient died eight months later due to massive tumor bleeding. To the best of our knowledge, this is the first report of undifferentiated sarcoma arising from low-grade glioma without any chemotherapy or radiotherapy.

• Asian Pacific Journal of Cancer Prevention
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• 제15권16호
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• pp.6805-6810
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• 2014

Background: Previous studies have suggested a link between obesity and breast cancer (BC). However, there is no universal consensus, especially in population based studies. Because only few studies have been conducted on African women, we aimed here to assess the relationship between BMI at time of diagnosis and the BC histopathological features among Tunisian patients according to menopausal status using a hospital-based prospective cohort study. Materials and Methods: Clinical and pathological data were collected from 262 patients stratified on four groups according to their BMI. The relationship between BMI and histopathological features at diagnosis was analysed using univariate and multivariate analysis. Receiver-operating characteristic (ROC) curves were used to evaluate the performance of BMI in predicting of high tumor grade, in comparison to ki-67 index of proliferation. Results: Obesity was correlated with larger tumors, advanced grade and with ER-PR-Her2+ BC subtype. An association of BMI with tumor size and tumor grade was observed in both premenopausal and postmenopausal women. Additionally, a significant association between BMI and ER+, ER+PR+Her2+ and ER-PR-Her2+ status was revealed for premenopausal patients, while only ER+PR+Her2+ was associated with BMI for postmenopausal women. Finally, our results showed that compared to Ki67 proliferation index, BMI is a useful prognostic marker of high grade BC tumors. Conclusions: These data are the first to show that in Tunisia obese women suffering from BC have significantly larger tumors and advanced tumor grade and that higher BMI might influence tumor characteristics and behavior.

• Asian Pacific Journal of Cancer Prevention
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• 제16권1호
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• pp.307-314
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• 2015

Background: Bladder cancer is among the five most common malignancies worldwide. Altered expression of suppressor of cytokine signaling -3 (SOCS-3) has been implicated in various types of human cancers; however, its role in bladder cancer is not well established. Aim: The present study was undertaken to investigate the mRNA expression of SOCS-3 in normal and cancerous bladder tissue and to explore its correlation with urinary levels of some proinflammatory cytokines, cytokeratin-18 (CK -18) and with tumor histopathological grading, in order to evaluate their role as potential diagnostic markers. Materials and Methods: SOCS3 mRNA expression levels were evaluated using quantitative real time PCR. Urinary levels of interleukins 6 and 8 were estimated by enzyme linked immunosorbent assay (ELISA). Cytokeratin-18 expression was analyzed by immuunohistochemistry then validated by ELISA. Results: SOC3 m RNA expression levels were significantly lower in high grade urothelial carcinoma ($0.36{\pm}0.12$) compared to low grade carcinoma ($1.22{\pm}0.38$) and controls ($4.08{\pm}0.88$), (p<0.001). However, in high grade urothelial carcinoma the urinary levels of IL-6, IL-8, total CK-18($221.33{\pm}22.84pg/ml$, $325.2{\pm}53.6pg/ml$, $466.7{\pm}57.40U/L$ respectively) were significantly higher than their levels in low grade carcinoma ($58.6{\pm}18.6pg/ml$, $58.3{\pm}50.2pg/ml$, $185.5{\pm}60.3U/L$ respectively) and controls ($50.9{\pm}23.0pg/ml$, $7.12{\pm}2.74pg/ml$, $106.7{\pm}47.3U/L$ respectively), (p<0.001). Conclusions: Advanced grade of urothelial bladder carcinoma is significantly associated with lowered mRNA expression of SOC3 as well as elevated urinary levels of proinflammatory cytokines and CK-18. Furthermore, our results suggested that urinary IL-8, IL-6 and CK-18 may benefit as noninvasive biomarkers for early detection as well as histopathological subtyping of urothelial carcinoma.

• 대한두경부종양학회지
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• 제38권2호
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• pp.15-18
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• 2022

Myofibroblastic sarcoma can be classified as low-, intermediate-, and high-grade. Low-grade myofibroblastic sarcoma (LGMS) is uncommon and rarely appears on the skin. LGMS is diagnosed based on histopathological and immunohistochemical findings. Additionally, LGMS metastases are rare as well. Herein, the authors describe a case of cutaneous LGMS in the neck. To the best of our knowledge, there are no cases regarding cutaneous LGMS in the neck present in the existing literature. Surgical resection is considered as the most important treatment for LGMS. Therefore, a complete tumor resection was performed in this case. However, another mass in the uterus was identified on abdominal computed tomography performed post-surgery.

• 한국임상수의학회지
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• 제19권2호
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• pp.115-120
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• 2002

To clarify the therapeutic effect of aquapuncture therapy on bovine foot rot, the experimental cattle were divided into control (conventional treatment), aquapuncture and combined treatment groups. Each group was composed of 6 Holstein cows with bovine foot rot. In the present study, the change in grade of lameness, total leukocyte counts, N/L. ratio, mean recovery rates (days) and histopathological changes of interdigital tissue before and after treatment were evaluated. The grade of lameness was decreased by treatment in each group, with the decreasing in order of combined > aquapuncture > control group. In change of total peripheral blood leukocyte counts, the tendency of decrease was found. Significances were detected on 9th day (P < 0.05) in control, on 6th day (P < 0.01) in aquapuncture group, and on 3rd (P < 0.05) and 6th day (P < 0.05) in combined group, respectively. In addition, significances were detected on 3rd and 6th day in aquapuncture, and on 3rd day in combined group by comparison with that of control, respectively. N/L ratio was decreased by therapy in each group with the decreasing in order of combined > aquapuncture ) control group. Significances were detected on 6th day (P < 0.01) between aquapuncture and combined groups. The mean recovery rates(days) were rapid with the decreasing in order of combined > acuapuncture > control group. In histopathological findings of interdigital tissue, the findings of inflammation and hemorrhage were not observed after treatment in each group. In conclusion, it was thought that aquapuncture and combined therapy was very effective on treatment of bovine foot rot.

• Journal of Acupuncture Research
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• 제26권3호
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• pp.81-92
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• 2009

Objectives: Burn is a severe dermal injury caused by heat. We were to investigated the effects of acupuncture or pharmacopunture treatment for the histologic and morphologic recovery on the mouse with the 3rd grade burn skin. Methods : We divided into 3 groups. One was a control group(n=3) that was not treated any treatments. Another was a acupuncture group(n=3) that was treated only acupuncture. The other was a pharmacopuncture group(n=3) that was treated only pharmacopuncture. We made a 3rd grade burned skin with the stainless steel heating apparatus. We made a treatment for the mice for a week(2 times for a day, totally 14 times treatments). We observed a dermal morphologic recovery on the mice and a histopathological photographs of the burn skin and subcutaneous tissue with H&E stain, Masson's trichrome stain, and VEGF, FGF and c-kit immunohistochemical stain. Results : The pharmacopuncture group were a better morphologic recovery than control group and acupuncture group. And the pharmacopuncture group were a better histopathological recovery than control group and acupuncture group on the burn skin and subcutaneous tissue with H&E stain, Masson's trichrome stain. And the pharmacopuncture group were a better histopathological recovery than control group and acupuncture group on the burn skin and subcutaneous tissue with VEGF, FGF and c-kit immunohistochemical stain. Conclusions : We suggest that the pharmacopuncture treatment is a better histologic and morphologic recovery than the no treatment or the acupuncture group with the burned mouse skin.