CXCL8, MMP1, MMP2, and FN1 Gene Expression and Tumor Extension in Nasopharyngeal Cancer Patients: A Cross-sectional Study.

BACKGROUND: There are correlations between tumor staging, lymph node involvement, and patient survival in Nasopharyngeal cancer (NPC) which is one of the most common types of cancer in Indonesia.  The inflammation process plays a role in tumor progression over the long term and this marked by increased proinflammatory cytokine and gene overexpression. This study aims to identify differentially expressed genes (DEGs) in NPC using T and N staging. METHODS: This is a cross-sectional study of NPC patients in Cipto Mangunkusumo, Jakarta, between 2018 and 2022. DEGs were identified based on the amount of mRNA detected on paraffin blocks with a 1.5- to -1.5-fold change and an adjusted p-value of <0.05. RESULTS: We included 48 subjects. The mean age of subjects was 47.75 (10.48) years, and most were male (77.1%). Non-keratinized squamous cell carcinoma was the most common histopathology type. Differences in the tumor size of the T4 and non-T4 in metastatic (33.3%) group when compared to the non-metastatic (37.5%) group were insignificant (p = 0.763). The proportion of N3 subjects in the metastatic vs non-metastatic group was different significantly (83.3% vs. 50%, p = 0.030). Gene expression analysis showed that C-X-C motif ligand 8 (CXCL8), matrix metalloproteinase-1 (MMP1), matrix metalloproteinase-1 (MMP2), and fibronectin-1 (FN1) genes of the T4 and non-T4 group to be different significantly. CONCLUSION: There was significant finding in the N3 subjects of the metastatic and non-metastatic groups. The DEGs of CXCL8, MMP1, MMP2, and FN1 were statistically significant in the T4 when compared to the non-T4 group.

Alkaline phosphatase, lactic dehidrogenase, inflammatory variables and apparent diffusion coefficients from MRI for prediction of chemotherapy response in osteosarcoma. A cross sectional study.

BACKGROUND: This present study aimed to assess if clinical, laboratory and MRI were an accurate benchmark in assessing the effectiveness of neoadjuvant chemotherapy in osteosarcoma patients. METHODS: This was an observational analytic study with a cross-sectional design. We correlated among clinical, laboratory and magnetic resonance imaging (MRI) data before and after neoadjuvant chemotherapy; and percentage of tumor necroses from osteosarcoma patients during the period between January 2017-July 2019. RESULTS: Of the 58 patients included in this study, 38 were male and 20 were female aged 5 - 67 years (mean: 16-year-old. 37(63.8%) patients underwent neoadjuvant chemotherapy with CAI regimens and 13 (36.2%) with CA regiments. The tumors were classified as stage IIB in 43 (74.1%) patients and stage III in 15 (25.9%) patients. Wilcoxon test showed significant differences between alkaline phosphatase (ALP), erythrocyte sedimentation rate (ESR), and neutrophil to lymphocyte ratio (NLR) before and after neoadjuvant chemotherapy in the poor-response group. We found no significant difference between lactic dehydrogenase (LDH) and lymphocyte-to-monocyte ratio (LMR) before and after neoadjuvant chemotherapy in the good-response group. MRI revealed decreased tumor volume in patients in the good-response to chemotherapy. CONCLUSION: We demonstrated that ALP level was statistically significant in the poor-response group. We also found that LDH value before neoadjuvant chemotherapy had a strong correlation with degree of necrosis and could be used as a predictive indicator. MRI plays an important role in evaluating tumor volumes and preoperative radiological changes to predict histological necrosis.

Diaphragm muscle thinning in mechanically ventilated critically ill patients.

OBJECTIVE: The aim of this study was to investigate the course of diaphragm changes in mechanically ventilated patients in ICU after four days of mechanical ventilation. In addition, to evaluate correlation of various demographic variables to baseline diaphragm muscle thickness and their effects on the course of diaphragm muscle thickness changes. METHODS: This study was conducted from December 2018 to February 2019 at Cipto Mangunkusumo National Hospital. Thirty critically ill patients using mechanical ventilation in the ICU were included. Baseline demographic data were collected. Baseline end expiratory diaphragm thickness was measured within one hour after starting mechanical ventilation and repeated every 24 hours for four days. Mortality and duration of mechanical ventilation were recorded. RESULTS: There were no differences in baseline diaphragm thickness according to gender, body mass index and modified Rankin Score. The subjects were divided into two categories: duration of mechanical ventilation less than seven days and duration of ventilation of seven days or more. The mean baseline diaphragm thickness was 2.11 + 0.15 mm. A rapid decrease of diaphragm muscle thickness was found within 24 hours. Diaphragm muscle thickness changed over subsequent measurements during observation. It was found that rapid diaphragm muscle thinning corresponded with longer duration of mechanical ventilation and worse outcomes. CONCLUSIONS: Diaphragm muscle thinning was seen early in the course of mechanical ventilation. Diaphragm muscle thickness changed over time, and there was no correlation with other measured variables.