• Title/Summary/Keyword: Aberrant

Search Result 594, Processing Time 0.028 seconds

Intralobar Pulmonary Sequestration: Report Of One Case (폐내엽형 격절부 1례 보고)

  • 조중구
    • Journal of Chest Surgery
    • /
    • v.14 no.4
    • /
    • pp.354-358
    • /
    • 1981
  • Intralobar pulmonary sequestration is a rare congenital malformation characterized by a cystic portion of the lung that derives its arterial blood supply through aberrant vessel directly of systemic circulation. Intralobar pulmonary sequestration Is usually contained within the visceral pleura of a pulmonary lobe and its venous drainage to the pulmonary venous system. We experienced a case of pulmonary sequestration preoperatively confirmed. The patient was 17 year old female whose complaints were mild fever and profuse purulent sputum. Chest film showed a large thin walled cystic lesion with air-fluid level at the left lower posterior basal lung field. Aortogram revealed an aberrant artery originated from thoracic aorta just above the diaphragm and that drained via pulmonary vein into the left atrium. At time of operation, a large abscess cavity measuring 9x8x3 cm in dimension at the left lower lobe was noted. And the aberrant artery, measuring 0.5 cm in diameter and 2 cm in length, arising from thoracic aorta just above the diaphragm was noted. After division and ligation of the aberrant artery, a left lower lobectomy was performed and the patient`s postoperative course was uneventful.

  • PDF

Aberrant Methylation of p16 Tumor Suppressor Gene and Death-Associated Protein Kinase in Non-Small Cell Lung Carcinoma (비소세포폐암 조직에서 p16 종양억제유전자와 Death-Associated Protein Kinase의 Aberrant Methylation의 양상)

  • Kim, Yun-Seong;Lee, Min-Ki;Jung, Kyung-Sik;Kim, Ki-Uk;Kim, Young-Dae;Lee, Hyung-Ryul;Lee, Chang-Hoon;Seok, Ju-Won;Kim, Yong-Ki;Jun, Eun-Sook;Choi, Young-Min;Rha, Seo-Hee;Park, Soon-Kew
    • Tuberculosis and Respiratory Diseases
    • /
    • v.51 no.2
    • /
    • pp.108-121
    • /
    • 2001
  • Background : The $p16^{INK4a}$ (p16) twnor suppressor gene is frequently inactivated in hwnan non-small cell lung cancers (NSCLCs), predominantly through homozygous deletion or in association with aberrant promotor hypermethylation. Death-associated protein kinase (DAPK) gene influences interferon $\gamma$-induced apoptotic cell death and has important role in metastasis of lung cancer in animal model. Hypermethylation of promoter region of DAP kinase gene may suppress the expression of this gene. Methods : This study was performed to investigate the aberrant methylation of p16 or DAP kinase in 35 resected primary NSCLCs by methylation-specific PCR (MSP), and demonstrated frequency, diagnostic value and clinical implication of aberrant methylation of two genes. Results : Thirty-two cases were male patients, and 3 cases were female patients with an average age was 57. $8{\pm}10.5$ years. The histologic types of lung cancer were 22 of squamous cell carcinoma, 12 of adenocarcinoma, 1 of large cell carcinoma. Pathologic stages were 11 cases of stage I (1 IA, 10 IB), 13 cases of stage II (1 IIA, 12 IIB), and 11 cases of stage III (9 IIIA, 2 IIIB). Regarding for the cancer tissue, p16 aberrant methylation was noted in 13 case of 33 cases (39.4%), DAP kinase in 21 cases of 35 cases (60%). Age over 55 year was associated with p16 aberrant methylation significantly (p<0.05). Methylation status of two genes was not different by smoking history, histologic type, size of tumor, lymph node metastasis and disease progression of lung cancer. There was no correlation between p16 and DAP kinase hypermethylation. Conclusion: This investigation demonstrates that aberrant methylation of p16 tumor suppressor gene or DAP kinase showed relatively high frequency (74.3%) in NSCLCs, and that these genes could be a biologic marker for early detection of lung cancer.

  • PDF

The Chemopreventive Effect of Heat-treated Radish Complex Extracts on Rat Colonic Aberrant Crypt Foci Induced by 1,2-Dimethylhydrazine (1,2-Dimethylhydrazine에 의해 유발된 Colonic Aberrant Foci에 대한 초임계 열처리된 무복합추출물의 대장암 효과)

  • Kim, Hyun Kyoung
    • The Journal of the Convergence on Culture Technology
    • /
    • v.5 no.4
    • /
    • pp.431-438
    • /
    • 2019
  • The present study was designed to investigate the chemopreventive effects of supercritical heat radish extracts with anti-constipation acitivity in loperamide-treated rats, on 1,2-dimethylhydrazine(DMH)-induced aberrant crypt foci(ACF) in rat colonic mucosa. Supercritical heat radish extracts was administered in the drinking water(3.2 mg/ml) during the initiation (for 12 weeks) or postinitiation phase(for 9 weeks) of DMH-induced carcicogenesis. Supercritical heat radish extracts coupled with DMH for 12 weeks decreased significantly total number of aberrant crypts(pre-neoplastic lesions) and the number of ACF to 35% and 30%, respectively. The number of ACF with more than four aberrant crypts (crypt multiplicity) was significantly reduced in the colon of rats receiving Supercritical heat radish extracts for 12 weeks. In the group receiving Supercritical heat radish extracts after post-initiation for 9 weeks, only the number of ACF with ${\geq}4$ abberant crypts significantly decreased. Supercritical heat radish extracts, given alone for 12 weeks, did not induced the development of ACF. These results indicate that Supercritical heat radish extracts possess chemopreventive effects on chemically induced rat colon carcinogenesis.

A Case of Aberrant Abducens Nerve in a Cadaver and Review of Its Clinical Significance

  • Choi, Chan-Young;Han, Seong-Rok;Yee, Gi-Taek;Lee, Chae-Heuck
    • Journal of Korean Neurosurgical Society
    • /
    • v.47 no.5
    • /
    • pp.377-380
    • /
    • 2010
  • The abducens nerve usually travels from the brainstem to the lateral rectus muscle as a single trunk. However, it has been reported that this nerve could split into branches occasionally. We attempted to show the aberrant course of abducens nerve in a specimen with unilateral duplicated abducens nerve and review relevant literatures. The micro-dissections were performed in a head specimen injected with colored latex under the microscope. The abducens nerve was duplicated unilaterally. This nerve emerged from the pontomedullary sulcus as a single trunk and splitted into two branches in the prepontine cistern. These two separate branches were piercing the cerebral dura of the petroclival region respectively. The slender lower branch passed between the petroclinoid and petrosphenoid ligaments and the thick lower one passed under the petrosphenoid ligament. These two branches united just lateral to the ascending segment of internal carotid artery in the cavernous sinus. The fact that there are several types of aberrant abducens nerve is helpful to perform numerous neurosurgical procedures in the petroclival region and cavernous sinus without inadvertent neurovascular injuries.

Anomalous Systemic Arterial Supply to the Lung without Sequestration A Cases Report (폐분획없는 폐동맥의 하행대동맥 기시이상 1례 보고)

  • 김요한
    • Journal of Chest Surgery
    • /
    • v.18 no.1
    • /
    • pp.104-110
    • /
    • 1985
  • The anomalous systemic arterial supply to the lung without sequestration is an uncommon congenital anomaly characterized by the presence of a part of lung tissue which supplied by an aberrant artery from the aorta or its branch and normal communication with the normal bronchial tree, and it was reported by Huber in 1777 first. It differs from bronchopulmonary sequestration in having normal bronchial communication from the remainder lung and normal lung histology. We experienced a case of anomalous systemic arterial supply to the lung without sequestration, which was confirmed preoperatively. The patient was 16 year old male and came to us with complaints of mild fever and profuse sputum with coughing. Chest film showed a ring-like soft tissue shadow in Rt. middle lung field. Aortogram revealed an aberrant artery originated from abdominal aorta at 12th thoracic vertebral level and supplying a part of Rt. lower lobe of lung. At. the time of operation, an aberrant systemic artery which originated from the abdominal aorta supplying the Rt. lower lobe was noted, and the bronchial communications were normal. After division and ligation of the aberrant artery, Rt. lower lobectomy was performed The postoperative courses were uneventful and the patient was discharged with good condition.

  • PDF

The Effect of Bifidobacteria and Various Oligosaccharides Consumption on the Risk of Colon Cancer in Rats

  • Khil, Jin-Mo
    • Nutritional Sciences
    • /
    • v.8 no.4
    • /
    • pp.219-225
    • /
    • 2005
  • This study examined the effect of viable bifidobacteria and non-digestible carbohydrates on the cecal pH, colonic neoplastic lesion (aberrant crypt) and proliferating cell nuclear antigen (PCNA) labeling index in carcinogen-treated mts. Animals received s.c. injection of dimethylhydrazine (DMH) (15 mg/kg body weight) twice 3 days apart. Three days after the second carcinogen administration, the treatments were begun. 1he treatments were basal diet (AIN-76) with skim milk (Basal/skim), or the following diets with daily gavage of $10^8$ bifidobacteria: basal (Basal/bifido), $2\%$ fructo-oligosaccharide (FOS/bifido), $2\%$ soybean oligosaccharide (SBO/bifido), $2\%$ wheat bran oligosaccharide (WBO/bifido) and $8.4\%$ wheat bran (WB/bifido). After 4 weeks of treatment, cecal pH was measured using a pH probe. The number of aberrant crypt (AC), aberrant crypt foci (ACF) and crypt multiplicity were enumerated and colonic PCNA labeling index was determined using immunohistochemistry. Cecal pH was significantly reduced in SBO/bifido and FOS/bifido groups compared to control group. However, there were no significant differences in either number of AC or rates of cell proliferation as shown by PCNA labeling index among the groups, although mts fed FOS/bifido reduced the numbers of ACF compared to Basal/skim group. The SBO/bifido group did not reduce the number of ACF or PCNA labeling index. Also, other oligosaccharides did not reduce the risk of colon cancer compared to control group. The concomitant reduction of cecal pH and number of ACF suggest that the combination of bifidobacteria and FOS may reduce the risk of colon cancer.

Expression level and glycan dynamics determine the net effects of TIMP-1 on cancer progression

  • Kim, Yong-Sam;Kim, Sun-Hee;Kang, Jeong-Gu;Ko, Jeong-Heon
    • BMB Reports
    • /
    • v.45 no.11
    • /
    • pp.623-628
    • /
    • 2012
  • Tissue inhibitor of metalloproteinases (TIMPs; TIMP-1, -2, -3 and -4) are endogenous inhibitor for matrix metalloproteinases (MMPs) that are responsible for remodeling the extracellular matrix (ECM) and involved in migration, invasion and metastasis of tumor cells. Unlike under normal conditions, the imbalance between MMPs and TIMPs is associated with various diseased states. Among TIMPs, TIMP-1, a 184-residue protein, is the only N-linked glycoprotein with glycosylation sites at N30 and N78. The structural analysis of the catalytic domain of human stromelysin-1 (MMP-3) and human TIMP-1 suggests new possibilities of the role of TIMP-1 glycan moieties as a tuner for the proteolytic activities by MMPs. Because the TIMP-1 glycosylation participate in the interaction, aberrant glycosylation of TIMP-1 presumably affects the interaction, thereby leading to pathogenic dysfunction in cancer cells. TIMP-1 has not only the cell proliferation activities but also anti-oncogenic properties. Cancer cells appear to utilize these bilateral aspects of TIMP-1 for cancer progression; an elevated TIMP-1 level exerts to cancer development via MMP-independent pathway during the early phase of tumor formation, whereas it is the aberrant glycosylation of TIMP-1 that overcome the high anti-proteolytic burden. The aberrant glycosylation of TIMP-1 can thus be used as staging and/or prognostic biomarker in colon cancer.

Prognostic Significance of Beta-Catenin Expression in Patients with Esophageal Carcinoma: a Meta-analysis

  • Zeng, Rong;Duan, Lei;Kong, Yu-Ke;Wu, Xiao-Lu;Wang, Ya;Xin, Gang;Yang, Ke-Hu
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.15 no.15
    • /
    • pp.6103-6108
    • /
    • 2014
  • Many studies have reported ${\beta}$-catenin involvement in the development of esophageal carcinoma (EC), but its prognostic significance for EC patients remains controversial. Therefore, we conducted this meta-analysis to explore the issue in detail. After searching PubMed, EMBASE, Web of Science, and Chinese Biomedical Literature Database, we included a total of ten relevant studies. We pooled the overall survival (OS) data using RevMan 5.2 software. The results showed that aberrant expression of ${\beta}$-catenin was associated with a significant increase of mortality risk (hazard ratio 1.71, 95%CI 1.46-2.01; p<0.00001). Subgroup analyses further suggested that aberrant expression of ${\beta}$-catenin resulted in poor OS of EC patients regardless of histological type of EC, study location or criteria for aberrant expression of ${\beta}$-catenin, and the sensitivity analyses revealed that the result was robust. The meta-analysis revealed that aberrant expression of ${\beta}$-catenin could be a predicative factor of poor prognosis for EC patients.

Arterioesophageal Fistula Due to an Aberrant Right Subclavian Artery -A case report- (우측 쇄골하동맥 기시 이상에 의한 동맥-식도루)

  • 황경환;황의두
    • Journal of Chest Surgery
    • /
    • v.30 no.11
    • /
    • pp.1142-1144
    • /
    • 1997
  • A case of fatal hematemesis due to an aberrant right subclavian arterioesophageal fistula which is a rare complication of the vascular ring is presented. A 42-year-old man with multiple injury by traffic accident presented severe upper gastrointestinal bleeding and was taken emergent operation. He was keeping tracheostomy tube and nasogastric tube for 7 weeks. We could find an aberrant right subclavian arterioesophageal fistula through left thoracotomy which was made by irritation of the prolonged nasogastric ube. We carried division of the aberrant right subclavian artery and fistulectomy. He was doing well postoperatively. But massive bleeding occurred at the fifth postoperative day. We performed emergent reoperation at CCU and found the tear point on the suture site of the aorta, which might be developed due to irritation of the chest tube andfor infection of the surrounding tissues. He was expired at the 8th postoperative day due to ischemic brain damage.

  • PDF

Surgical Removal of an Intrapulmonary Aberrant Foreign Body -2 case reports - (폐내 이물의 수술적 제거 -2예 보고 -)

  • Kim, Sung-Hwan;Yahng, Jun-Ho;Moon, Sung-Ho;Lee, Chung-Eun;Kim, Jong-Woo;Jang, In-Seok
    • Journal of Chest Surgery
    • /
    • v.40 no.9
    • /
    • pp.645-647
    • /
    • 2007
  • Intrapulmonary aberrant needle is rarely encountered in clinical practice, Even if the patient is asymptomatic, the aberrant needle should be removed because it can migrate into the major organs and cause lung abscess or empyema. We report here or 2 cases of successfully removed intrapulmonary aberrant needle, along with a review of the literature.