There have been various attempts to reconstruct gene regulatory networks from microarray expression data in the past. However, owing to the limited amount of independent experimental conditions and noise inherent in the measurements, the results have been rather modest so far. For this reason it seems advisable to include biological prior knowledge, related, for instance, to transcription facto...

The nervous system is evolutionarily conservative compared to the peripheral appendages that it controls. However, species-specific behaviors may have arisen from very small changes in neuronal circuits. In particular, changes in neuromodulatory systems may allow multifunctional circuits to produce different sets of behaviors in closely related species. Recently, it was demonstrated that even s...

In this article, we show that high resolution melting analysis (HRM) is a sensitive and specific method for the detection of methylation. Methylated DNA and unmethylated DNA acquire different sequences after bisulphite treatment resulting in PCR products with markedly different melting profiles. We used PCR to amplify both methylated and unmethylated sequences and assessed HRM for the determina...

Despite the need for inducible promoters in strain development efforts, the majority of engineering in Saccharomyces cerevisiae continues to rely on a few constitutively active or inducible promoters. Building on advances that use the modular nature of both transcription factors and promoter regions, we have built a library of hybrid promoters that are regulated by a synthetic transcription fac...

MicroRNAs (miRNAs) are 20to 22-nucleotide RNAs that regulate the transcription and translation of genes. In our previous studies, we reported that a miRNA has the potential to affect the transcription of genes located near it. The number of miRNAs recorded in databases continues to increase. However, the effects of the miRNAs, including newly found miRNAs, on the transcription of genes located ...

background: miscarriage is one of the most common pregnancy complications for which various causes have been defined, such as genetic factors, infectious, metabolic, endocrine systemmal function and immune system undesired responses. the early development of embryo occurs in oviduct and uterine tube from which some factors such as growth factors, glyco-proteins and factors those stimulate devel...

Hypermethylation of CpG islands located in the promoter regions of genes is a major event in the development of the majority of cancer types, due to the subsequent aberrant silencing of important tumor suppressor genes. KLOTHO; a novel gene associated primarily with suppressing senescence has been shown to contribute to tumorigenesis as a result of its impaired function. Recently the relevance ...

background: tumor necrosis factor-beta or lymphotoxin-alpha (lt- α ), il-4 and il-10 are determining factors in immunity against bcg.  allelic polymorphisms in the regulatory regions of their genes affect the rate of cytokine production and therefore, the host’s ability in bcg containment.   objective : to study the prevalence of –590 (c/t) and –592 (c/a) allelic distribution of il-4 and il-10 ...