Arch Iran Med
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Circular RNAs (circRNAs), one of the recent subclasses of non-coding RNAs (ncRNAs), show pivotal functions in regulation of gene expression and have significant roles in malignancies including breast cancer (BC). This study was aimed to assess the hsa_circ_0001445 and hsa_circ_0020397 expression and role in BC, as well as the potential circRNA/miRNA/mRNA crosstalk in these contexts. ⋯ It is suggested that hsa_circ_0001445 and hsa_circ_0020397 with two opposite roles may be involved in BC development through sponging some miRNAs regulating ceRNA networks. However, their molecular interactions should be validated by further functional studies.
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Ion channel dysfunction in the brain can lead to impairment of neuronal membranes and generate several neurological diseases, especially neurodevelopmental disorders. ⋯ The results of this study broaden the molecular spectrum of channel pathogenic variants associated with different clinical presentations in individuals with ID and/or DD.
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Considering the high prevalence of tuberculosis (TB) in developing countries and the fact that comorbidity with diabetes mellitus (DM) imposes a higher burden on the society, this study was carried out to assess the prevalence of diabetes and its related factors in patients with TB in Mashhad, Iran. ⋯ The prevalence of DM in our study was higher than that observed in other countries. Our study showed associated factors like age, body mass index, and TB type to be very important. Also, the prevalence of DM was different in patients with different nationality.
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In December 2019, a cluster of viral pneumonia cases, later identified as coronavirus disease 2019 (COVID-19), was first reported in Wuhan, China, and then continued to spread to other parts of the world. COVID-19 is thought to be more prevalent in adults than children; therefore, information about COVID-19 burden and characteristics in children is lacking. ⋯ A high number of children in North Sumatera were affected by COVID-19, and mortality was found to be higher in children with underlying diseases. Major clusters were found in places with prolonged and repeated activities in close contact, such as boarding schools and a refugee shelter.
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Nipple discharge is a common finding which may be a symptom of breast cancer, but it is mostly caused by benign causes. A surgical biopsy followed by a histopathological examination is considered to be the gold standard for the diagnosis of pathological nipple discharge. Non-surgical diagnostic methods should be considered to reduce the need for intervention. Ductal lavage cytology (DLC) is performed by washing and examining the ductal discharge. The usefulness of examining spontaneous discharge is controversial. This study's aim is to evaluate the usefulness in surgical decision-making of ultrasonography (USG), mammography (MMG), magnetic resonance imaging (MRI), ductography, and DLC in patients with pathological nipple discharge. ⋯ Numerous studies report that cytology is not adequate for final diagnosis. Negative cytology does not exclude the possibility of malignancy, and positive results do not help in the differential diagnosis.