three hundred and sixty male day- old ross 308 broiler chicks were randomly assigned to four dietary treatments in order to evaluate the effect of propolis as growth promoter on the performance and the immune response of the broiler chicks to the nd vaccine. each treatment contained three replicates of 30 chicks. dietary treatments were as follow: a corn - soy meal diet (control diet).control d...

objective(s): the janus kinase-signal transducers and activators of transcription signaling pathway (jak/stat pathway) play an important role in proliferation of breast cancer cells. previous data showed that inhibition of stat3 suppresses the growth of breast cancer cells, but the associated mechanisms are not well understood. this study aims to investigate the effect and associated mechanisms...

Exact coordination of growth plate chondrocyte proliferation is necessary for normal endochondral bone development and growth. Here we show that PTHrP and TGFbeta control chondrocyte cell cycle progression and proliferation by stimulating signaling pathways that activate transcription from the cyclin D1 promoter. The TGFbeta pathway activates the transcription factor ATF-2, whereas PTHrP uses t...

Exact coordination of growth plate chondrocyte proliferation is necessary for normal endochondral bone development and growth. Here we show that PTHrP and TGF control chondrocyte cell cycle progression and proliferation by stimulating signaling pathways that activate transcription from the cyclin D1 promoter. The TGF pathway activates the transcription factor ATF-2, whereas PTHrP uses the relat...

There has been success with the use of plant ingredients in aquaculture as they are cheaper, biodegradable, biocompatible and growth promoters. Therefore, aim this study was to determine effects adding Carica papaya leaf diet Labeo rohita on feeding parameters. Feeding fishes different concentrations C. had an impact rate fish. Incorporation 10% feed enhances assimilation conversion efficiency ...

the effect of in ovo injection of olive leaf extract as a growth promoter antibiotic was studied on hatchability, day old chick weight, growth rate, feed conversion ratio, mortality and carcass efficiency. three hundred and twenty eggs were divided into 4 groups, and injected on day 18. treatments consisted of: 1- control (no injection). 2- injection of 1 ml of distilled water in air sac (dw), ...

human granulocyte-colony stimulating factor (hg-csf) cdna was expressed in the methylotrophic yeast pichia pastoris under the control of the alcohol oxidase (aox1) promoter. an expression vector for hg-csf secretion was constructed using vector ppic9. higher levels of hg-csf was obtained using a p. pastoris mut+ (methanol utilization fast) phenotype. the effects of environmental factors such as...

Human granulocyte-colony stimulating factor (hG-CSF) cDNA was expressed in the methylotrophic yeast Pichia pastoris under the control of the alcohol oxidase (AOX1) promoter. An expression vector for hG-CSF secretion was constructed using vector pPIC9. Higher levels of hG-CSF was obtained using a P. pastoris Mut+ (methanol utilization fast) phenotype. The effects of environmental factors such as...

In last decade, the uncontrolled use of antibiotics as growth promoter for livestock has led to the appearance of antibiotic-resistant pathogens and increased risk of infectious diseases. This situation has triggered intensive research efforts to find safe alternative strategies. Certainly, the plants and vegetables and their derivatives as natural safe substances could be good candidates in th...

epidermal growth factor (egf) is an important factor for healing after tissue damage in diverse experimental models. it plays an important role in liver regeneration (lr). the objective of this experiment is to investigate the methylation variation of 10 cpg sites in the egf promoter region and their relevance to egf expression during rat liver regeneration. as a follow up of our previous study...