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Background micro RNAs (mi RNAs) are single-stranded, noncoding RNA molecules. Given the vast regulatory potential of mi RNAs and their often tissue-specific and disease-specific expression patterns, mi RNAs are being assessed as possible biomarkers to aid diagnosis and prediction of different types and stages of cancers, including skin cancer. Basal cell carcinoma ( BCC) and squamous cell carcinoma ( SCC) are the most common forms of nonmelanoma skin cancer ( NMSC). BCC originates from the basal layer of the epidermis, while SCC arises from epidermal keratinocytes or from the dermal appendages. Although NMSCs are currently the most common types of malignancies, both BCC and SCC have a better than 95% cure rate if detected early. Aim To identify plasma mi RNAs suitable for early detection of NMSC. Methods Expression profiles of 741 mi RNAs were evaluated using high-throughput real-time quantitative PCR from plasma samples in 42 patients with NMSC and 282 healthy controls ( HCs). Results Our results demonstrated that in patients with NMSC, compared with HCs, expression levels of miR-30e-3p, miR-145-5p, miR-186-5p and miR-875-5p were significantly ( P < 0.05) upregulated, while those of miR-19a-3p, miR-25-3p, miR-30a-5p, miR-451 and miR-576-3p were significantly downregulated. Conclusion Our study suggests that the mi RNAs with significant changes in expression (miR-19a-3p, miR-25-3p, miR-30a-5p, miR-145-5p and miR-186-5p) could serve as novel noninvasive biomarkers for detection of NMSC. [ABSTRACT FROM AUTHOR]

PurposeThis study aimed to determine the possible effects of single-dose intravitreal bevacizumab on nitric oxide (NO) levels in serum and remote organs and to reveal one of the possible mechanisms in the pathophysiology of hypertension.MethodsThirty-eight adult New Zealand albino rabbits were divided into a control group (no injection was performed, killed on day 28 of the study), group 1 (killed on day 1 of the study), group 2 (killed on day 7 of the study), group 3 (killed on day 14 of the study), and group 4 (killed on day 28 of the study). The right eyes of the animals in groups 1-4 received an intravitreal single injection of 1.25 mg (0.05 ml) bevacizumab (Avastin), and their brain, heart, liver, kidney, and blood samples were collected. NO levels were evaluated in the serum and organ homogenates. Kidney tissues were assessed by electron microscopy.ResultsSerum, brain, kidney, and liver NO levels significantly decreased in groups 2, 3, and 4 as compared with the control group (P<0.05). In addition, heart NO levels significantly decreased in groups 3 and 4 compared with the control group (P<0.05). There were no electron microscopic changes in the kidneys of either group.ConclusionsThis study demonstrated that single intravitreal injection of bevacizumab decreased NO levels in serum, brain, heart, liver, and kidneys. In addition, there were no electron microscopic changes in the kidneys. [ABSTRACT FROM AUTHOR]

MicroRNA (miRNA) is an abundant class of small non-coding RNAs that act as gene regulators. Recent studies have suggested that miRNA deregulation is associated with the initiation and progression of human cancer. However, information about ovarian cancer-related miRNA is mostly limited to tissue miRNA. The aim of this study was to find specific profiles of plasma-derived miRNAs of ovarian cancer. In this present study, the expression profiles of 740 miRNAs in plasma from 18 patients and 24 healthy women subjects were evaluated using microfluidic based multiplex qRT-PCR. Our results demonstrated that expression levels of eight miRNAs were significantly upregulated in patients with ovarian cancer when compared with a control group (p < 0.05). Expression levels of four miRNAs were found significantly downregulated in patients with ovarian cancer (p < 0.05). In addition, 10 miRNAs were expressed only in the ovarian cancer group and miR-138-5p of these miRNAs is ovarian specific. In conclusion, our study suggests that detecting these ovarian cancer specific miRNAs in plasma might serve as novel non-invasive biomarkers for ovarian cancer. [ABSTRACT FROM AUTHOR]