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This study investigated the effect of prostaglandin E1 (PGE-1) treatment on the biochemical and histopathological changes in a model of nephropathy that was induced using renal microembolism in rats. Wistar rats were assigned to three groups a control group (C, normal), a renal microembolism (RM) group, and a renal microembolism treated with PGE-1 (RM + PGE-1) group. The renal microembolism was induced by an arterial injection of polymethylmethacrylate microbeads into the remaining kidney of nephrectomized rats. Intramuscular treatment with PGE-1 was initiated on the day of the induction of the renal microembolism and continued once weekly for up to 60 days. At the end of the treatment period, blood samples were taken to assess the serum creatinine and urea concentrations, and 24-h urine samples were collected to determine the total protein levels. The rats' kidneys were removed and processed for histopathological analysis using the hematoxylin and eosin, periodic acid-Schiff, Mallory-Azan, and Picro-Sirius techniques. An immunohistochemical assay with vascular endothelial growth factor receptor-2 (anti-VEGFR-2) was also performed. The results showed that the PGE-1 treatment prevented vascular, glomerular, tubular, and interstitial alterations and reduced the biochemical changes, thus improving the renal function in rats that were subjected to renal microembolism. These effects could be partially attributable to an increase in the PGE-1-induced angiogenesis, because we observed an increase in the tissue expression of VEGFR-2, a specific marker of angiogenesis.To investigate the incidence, prognosis, and treatment modality of different metastatic sites in cervical cancer.
We used the surveillance epidemiology and end results (SEER) database to collect cervical cancer patients with metastasis from 2010-2016. Kaplan-Meier survival analyses and log-rank tests were used to compare overall survival between groups. Univariate and multivariate Cox proportional hazards regression analyses were used for identifying the prognostic factors in metastatic cervical cancer.
In total, 1347 patients with distant metastatic cervical cancer were selected for the study. The average age of patients with metastatic cervical cancer was 57 years old. Unmarried white patients were the majority. About 7.9%, 53.3%, and 64.6% patients were treated with surgery, radiation, and chemotherapy, respectively. selleck kinase inhibitor Additionally, lungs were the most common metastatic sites. The survivals of single-site metastases were similar, which were better than multi-organ metastases. Lung metastatic patients wereh may guide the treatment in metastatic cervical cancers.
This large-population based study showed that the most common metastatic site of cervical cancer is lung. Although lung metastatic patients harbor older ages and poorer differentiation and higher stage tumors than other sites, the prognosis of lung metastasis is similar to other single metastatic sites. However, the single-site metastatic patients survive longer than multi-site metastatic patients. Surgery, radiotherapy, and chemotherapy all bring benefit to patients with metastases, which may guide the treatment in metastatic cervical cancers.
The purpose of this study was to explore the relationship between the levels of three tumor markers (TMs), carcinoembryonic antigen (CEA), carbohydrate antigen (CA) 19-9, and CA72-4, and the prognoses of colorectal cancer patients.
From January 2012 to December 2015, 101 patients with stages I-III colorectal cancer treated in the general surgery department of Nanfang Hospital, Southern Medical University were included in this retrospective study. The patients' blood was collected at different time points to determine their biochemical index values. The CA19-9 and CEA levels were measured using a chemiluminescence analyzer, and the CA72-4 level was determined using a semi-automatic enzyme-free analyzer. The relationship between the tumor marker expressions and the prognoses of patients with colorectal cancer was analyzed.
The sensitivity of the combined quantification of the three TMs was higher than quantifying just one of them, but the specificity was decreased. Those three TM levels were stable at two years after the operations, and they were significantly lower than they were before the operations (P < 0.05). A Kaplan Meier survival curve analysis showed that, compared with the patients with normal levels, the patients with increased levels of the three TMs had significantly shorter overall survival times and higher recurrence rates (P < 0.05).
The combined quantification of CEA, CA19-9, and CA72-4 is of great significance in determining the prognoses of colorectal cancer patients. It is helpful to predict the outcomes of patients with stages I-III colorectal cancer two years after their operations.
The combined quantification of CEA, CA19-9, and CA72-4 is of great significance in determining the prognoses of colorectal cancer patients. It is helpful to predict the outcomes of patients with stages I-III colorectal cancer two years after their operations.Lung cancer is one of the most common malignant tumors. A growing body of evidence has demonstrated that circulating microRNAs (miRNAs) have great potential for the diagnosis and prognosis of lung cancer. In this study, we aimed to determine the clinical significance of serum exosomal miR-1246 in non-small cell lung cancer (NSCLC). Real-time PCR was performed to measure the expression level of serum exosomal miR-1246 in NSCLC patients. The correlations between the serum exosomal miR-1246 level and prognosis of NSCLC were then investigated. The expression of serum exosomal miR-1246 was significantly increased in NSCLC patients. Receiver operating characteristic (ROC) analysis showed that serum exosomal miR-1246 showed good performance for discriminating NSCLC patients from healthy controls and patients with non-malignant respiratory diseases. The level of serum exosomal miR-1246 was decreased following treatments, but increased in the cases with recurrence. In addition, serum exosomal miR-1246 level was strongly associated with lymph node metastasis and TNM stage.
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