The genome of Escherichia coli harbors several catabolic operons involved in the utilization of a wide variety of natural compounds as carbon sources. The chitobiose (chu) operons of E.coli Is involved in the utilization ...

Gliomas are the most common primary brain tumors and include astrocytomas, oligodendrogliomas and oligoastrocytomas. Astrocytomas have a high frequency of occurrence as compared to the other gliomas and several studies ...

Mycobacterium tuberculosis, the causative organism of the disease tuberculosis (TB) in humans, leads to nearly two million deaths each year. This versatile pathogen can exist in highly distinct physiological states such ...

Rapidly growing tumor cells outgrow their blood supply resulting in a microenvironment with reduced oxygen and nutrients. Using an in vitro transformation model we found that cancer cells expressing the SV40 ST antigen ...

Pluripotent stem cells (PSCs) are specialized cells, which have remarkable ability to maintain in an undifferentiated state and are capable of undergoing differentiation to three germ-layer lineage cell types, under ...

All cells are equipped to sense changes in their environment and make adaptive responses according to the stimuli. Signal recognition usually occurs at the cell membrane (with the exception of steroid signalling) where the ...

The imprinting status of the SLC22A18AS gene, located in the human chromosome segment 11p15.5, was studied using PCR-SSCP analysis and fetal tissues from a battery of 17 abortuses. This gene showed monoallelic expression ...

Adult stem cells are a small population present within several tissues of an individual, possessing two unique properties: one, the ability to differentiate to give rise to all the cell types of the tissue, and second, the ...