Background: Obstructive sleep apnea (OSA) is a state of the occurrence of upper airway obstruction periodically during sleep that causes breathing to stop intermittently, either complete (apnea) or partial (hipopnea). Obesity hypoventilation syndrome (OHS) is generally defined as a combination of obesity (BMI ≥ 30 kg / mc) with arterial hypercapnia while awake (PaCO2 > 45 mmHg) in the absence of other causes of hypoventilation. Purpose: In order for the pulomonologis can understand the pathogenesis and pathophysiology of OSA and its complications. Literature review: Several studies have been expressed about the link between OSA, OHS with respiratory failure disease. Pathophysiology of OSA, OHS in respiratory failure were difficult to detect, can cause respiratory failure disease management becomes less effective. Conclusion: A good understanding can help with the diagnosis and management of the appropriate conduct to prevent complications of respiratory failure associated with OSA.
Backgrounds: Most patients with lung cancer was diagnosted in advanced stage (around 57%). Those diagnosed at early stage were only 15%. To increase the cure rate and life expectancy, lung cancer detection should be performed early. Melanoma-associated antigen 3 (MAGE-A3) is a testicular cancer antigen and is widely expressed in various types of tumor tissue. MAGE-A3 is expressed in about 35-40% of NSCLC. Previous research reported the expression of MAGE-A3 in lung cancer was 30-50%. To detect tumor antigens, CT antigens of the MAGE family can be detected through real time polymerase chain reaction (RT-PCR). This study aimed to analyze the relationship between MAGE A3 expression and histopathology type from forceps biopsy specimens in NSCLC patients. Methods: This study was a cross-sectional study conducted on 14 patients with lung cancer in September 2018 to February 2019. Subjects underwent force biopsy with guidance from bronchoscopy in the pulmonary surgery room Dr. Soetomo. The analysis used was the Fisher's exact test. Results: There were six subjects with histopathology type of adenocarcinoma (42.9%) and eight subjects (57.1%) with the histopathology of squamous cell carcinoma. Expression of MAGE-A3 was positive in 5 subjects (35.7%). Conclusions: There was no significant relationship between the expression of MAGE-A3 and the type of histopathology. (J Respir Indo. 2020; 40(2): 113-9)
Non–small-cell lung cancer (NSCLC) is a type of epithelial lung cancer and associated with cigarette smoking (passive or active). Melanoma-associated antigen 3 (MAGE-A3) is widely expressed in various types of tumours, including NSCLC. This study aimed to examine the MAGE-A3 expression in forceps biopsy specimens as a tumour biomarker to be used for early diagnosis and screening of lung cancer. This study was an observational, analytical study with a cross-sectional study design. The sample size was determined based on Ronald Fisher’s classic z transformation formula, and samples were selected using consecutive sampling. The study population included 14 lung tumour patients. Samples were obtained by forceps biopsy with bronchoscopy guidance. Histopathological analysis was carried out using Giemsa staining. The expression of MAGE-A3 was determined using RT-PCR. All data were analysed using SPSS statistics software (IBM SPSS Statistics, IBM® SPSS® Statistics is a powerful statistical software platform RRID: SCR_019096). In this study, there were 6 subjects (42.9%) with NSCLC adenocarcinoma and 8 subjects (57.1%) with squamous cell carcinoma. The positive MAGE-A3 expression was found in 5 (35.7%) of the total research subjects, and the expression on RT-PCR analysis was at 569 bp. We found that MAGE 3 gene was mostly expressed in adenocarcinoma of NSCLC, even though there was no statistical correlation with histopathological results (P > 0.05). MAGE-A3 expression in forceps biopsy specimens of NSCLC was mostly found in the adenocarcinoma type at 569 bp. Therefore, it could be used as a tumour biomarker for early diagnosis and screening of lung cancer.
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