tuberculose has increased in the recent years. use of a sensitive screening method, can be one of the influential parameters in reduction of pulmonary tuberculosis. current screening method in the laboratories is based on observation of bacilli in stained smear by ziel-neelsen procedure. the aim of this research was to study the pcr efficiency in all confirmed patients of hamadan province. twen...

background and objectives: regarding the importance of finding new antibacterial drugs, screening of plants as a promising resource are now conducted worldwide. in this study, we report the application of a simple previously described method for screening of different plant seeds in order to find the best resources of plant antimicrobial peptides. materials and methods: total water soluble prot...

Medical tests, such as genetic tests and blood tests for various diseases or conditions, are far from infallible. A test can produce two kinds of errors: a false positive result (meaning that the test indicates presence of the disease when it is, in fact, not there) or a false negative result (meaning that the test indicates absence of the disease when it is in fact present). Thus, when you get...

An international working group was established with the aim of making recommendations on the number of offspring for a sperm donor that should be allowable in cases of international use of his sperm. Considerations from genetic, psychosocial, operational and ethical points of view were debated. For these considerations, it was assumed that current developments in genetic testing and Internet po...

Schizosaccharomyces pombe cells can switch between two mating types, plus (P) and minus (M). The change in cell type occurs due to a replication-coupled recombination event that transfers genetic information from one of the silent-donor loci, mat2P or mat3M, into the expressed mating-type determining mat1 locus. The mat1 locus can as a consequence contain DNA encoding either P or M information....

After decades of optimistic portrayals, there has been a shift in the way that the popular press represents genomic research. A skeptical view has become more common. The central reason for this pendulum swing away from popular support is the harsh truth that most genetic risk information just isn't that predictive. This reality has created a fascinating policy paradox. If, as many in the scien...