Mutations in the transmembrane channel-like gene1 (TMC1) are known to cause autosomal dominant and recessive forms of nonsyndromic hearing loss DFNA36 and DFNB7/11, respectively.
Background: Artemisia herba alba is an aromatic species very rich in secondary metabolites that can be used in traditional medicine.
The context and purpose of the study: This species suffers from the degradation of its natural habitat. The creation of collections containing diverse ecotypes is important for its preservation. This species contains essential oils which limit the extraction of DNA. The objective of this study is to optimize the DNA extraction and PCR conditions. The method will be used to evaluate the genetic diversity of Artemisia herba alba in the highlands of Western Algeria as a starting point.
Gastrointestinal stromal tumors (GISTs) are rare sporadic tumors that typically occur late in life, although they are the most common mesenchymal neoplasms of the gastrointestinal tract. GISTs are believed to originate from the Interstitial Cells of Cajal (ICC), a group of cells identified in the wall of the organs of the gastrointestinal tract, which act as a pace-maker for peristalsis and gut movements. However, familial and pediatric cases have also been reported.
Background: Schizophrenia (SCZ) is a multifactorial mental disease. Whereas complex interplay of genes and environment contributes to the SCZ, the disorder has still unclear biological background. Growing amount of evidence showed that synaptic dysfunctions are contributed to SCZ etiopathogenesis.
Background: The origin of atopic disease is poly factorial and the development of atopic manifestations appears to be linked to interactions between genetic and environmental factors. Such data seem to focus attention on the rising prevalence rates of atopic dermatitis, a common debilitating skin condition in infants and young children. They also often have asthma and/or allergic rhinitis.
Background: Allergic asthma and rhinitis, atopic dermatitis, urticaria and food allergy are genetic diseases of infants and children. Several investigators have provided evidence for a genetic localization for atopy. Babies of atopic parents are at high risk of developing atopic diseases, however the phenotypic expression of such diseases varies widely, being very mild in some infants and children, severe and frustrating in many, even life-threatening in others, being also common, disabilitating, and chronic.
Transposable elements (TEs) include a wide range of DNA sequences that can change positions in the genome. The accessibility of whole fungal genome sequences and analysis of TEs demonstrate the important role they play in genome evolution of fungi species. TE activity is a primary mechanism for high fitness, plasticity and adaptability in certain species of pathogenic fungi. Some of the deleterious effects of transposons may be due to ectopic recombination among transposons of the same family. To prevent possible damage caused by the transposons, some fungi possess TE-silencing mechanisms, for instance, RIP (Repeat Induced Pont mutation) and RNA silencing. In addition, TEs are efficient molecular markers due to their structure and transposition strategy.
Antisense oligonucleotides (oligos) have been evaluated for treating prostate cancer in both in vivo and in vitro models. Although most oligos contain a single mRNA binding site, our laboratory evaluates bi-specific oligos directed towards two proteins. This study evaluates the growth inhibition in vitro of the LNCaP cell line employing mono- and bi-specific oligos directed against BCL-2 [the second binding site was directed against the epidermal growth factor receptor (EGFR)]. These oligos were administered with lipofectin as part of a nanoparticle delivery system. Additionally, g, the expression of five apoptosis regulatory proteins, BCL-2, bax, caspase-3, clusterin and AKT-1 was evaluated by RT-PCR.
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