recombinant protein purification is a kind of sensitive and expensive method in genetics engineering. genetic manipulation leads to the expression of various proteins; it should be isolated with high purity finally. differed methods for protein purification are categorized, based on cast, quality, easy work and side effect of protein. in this article, we are investigating his his-tag protein pu...

The increasing frequency of mass coral bleaching and associated mortality threaten the future warmwater reefs. Although thermal stress is widely recognized as main driver bleaching, exposure to light also plays a central role. Future projections impacts climate change on reefs have date focused temperature not considered role clouds in attenuating response corals. In this study, we develop temp...

PURPOSE To investigate the prevalence of color deficits at age 5 1/2 years in preterm children with birth weights of less than 1251 g who participated in the multicenter Cryotherapy for Retinopathy of Prematurity (CRYO-ROP) study. METHODS Two cohorts of CRYO-ROP participants served as subjects: 1055 children who participated in a long-term study of the natural history of ROP at 5 of the 23 CR...

background: in vitro simulation of developmental processes is an invaluable tool to shed light on the intrinsic mechanism of developmental biosystems such as central nervous system in mammals. chick somites have been used to simulate the neural differentiation of human neural progenitor cells. in the present study, we aimed to indicate whether somites have the ability to express required neural...

a sweet water-soluble protein that reminds stable over wide ranges of temperature and ph, brazzein has various applications. its tastes like cane sugar but have no calories. however, the extraction of brazzein from its natural source is expensive and not applicable. in this study we used recombinant dna technology to provide an alternative option for cheaper mass production of brazzein. a brazz...

we present the first reported case of antiphospholipid syndrome with stroke in an iranian boy (7-month-old) who had two ischemic strokes within a period of 2 months. serum anticardiolipid antibody was positive and the patient had low levels of protein s and c. this case emphasizes the importance of antiphospholipid antibody in children with unexplained ischemic stroke.

animal agricultural production systems are major sources of nonpoint pollution affecting quality of water sources. nitrogen has been identified as the foremost source of nonpoint water pollution  and the potential negative impacts of n have become an area of public concern. protein degradation from feed ingredients is an important factorinfluencing aa supply to the duodenum. ruminal proteolysis...

background: it seems that the success of vaccination for cancer immunotherapy such as dendritic cell (dc) based cancer vaccine is hindered through a powerful network of immune system suppressive elements in which regulatory t cell is the common factor. foxp3 transcription factor is the most specific marker of regulatory t cells. in different studies, targeting an immune response against regulat...

synchronization of rumen available protein and energy is one of the conceptual methods to increase the efficiency of utilization of nutrients by the ruminants the concept of synchronization energy and protein was first by jhonson, implying that maximum microbial protein synthesis could be achieved by matching the rate of organic matter and protein degradation. synchronization of rumen available...

background and objectives: timely diagnosis of leptospirosis is essential for an effective treatment. large diversity of clinical symptoms has led leptospirosis diagnosis difficult. researchers have conducted many tests with wide-range of sensitivity and specificity to achieve novel diagnostic procedures which have higher sensitivity and specificity compared with previous tests and which are mo...