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Menampilkan postingan dengan label Microbiology

HBV transmission

transmission HBV 4 Oct 2017 H3 Organisms such as hepatitis B virus (HBV) that cause infections via sexual transmission can also cause infections via other routes, such as percutaneous transmission by contaminated needles and vertical transmission in utero or during delivery. As a typical STI, HBV infection is present in all types of populations. Sexual contact and vertical transmission from mother to infant are responsible for the large majority of HBV infections worldwide [4]. HBV infection as an STI is well documented. It is mainly common among men who have sex with men (MSM), because multiple partners are common in this population; and anal sex is usually more traumatic than vaginal intercourse, resulting in increased risk of exposure to blood [4, 5]. HBV infection is also extremely common among heterosexual individuals who have multiple sex partners or contact with sex workers [6]. HBV transmission has been found to occur through various forms of human contact, ...

Micro RNA

miRNA 4 Oct 2017 definitionG14 MicroRNAs or miRNAs, a subset of non-coding RNAs, are ∼22-nt long endogenously-initiated short RNA molecules that are considered to posttranscriptionally regulate the cleavage of target m- RNAs or just repress their translation G15 A microRNA (abbreviated miRNA) is a small non-coding RNA molecule (containing about 22 nucleotides) found in plants, animals and some viruses, that functions in RNA silencing and post-transcriptional regulation of gene expression.[1][2] While the majority of miRNAs are located within the cell, some miRNAs, commonly known as circulating miRNAs or extracellular miRNAs, have also been found in extracellular environment, including various biological fluids and cell culture media. perbedaan dengan siRNA Link:  https://www.dropbox.com/s/buptsslguui80gg/perbedaan%20siRNA%20dan%20miRNA.png?dl=0 G15 miRNAs resemble the small interfering RNAs (siRNAs) of the RNA interference (RNAi) pathway, except miRNAs derive from regions of R...