background: essential oils as growth stimulant play an important role in improving intestinal microflora and morphological properties and immune system in broiler chickens. objectives: the aim of this study was to investigate the effects of artemisia sieberi oil on intestinal morphology, secum microflora and immune system in broiler chickens. methods: two hundred day-old broiler chickens (ross ...

bacillus spp. are gram-positive spore-forming bacteria used commercially as probiotics in the larviculture of fish. bacillus spp. can act positively on cultured organisms by enhancing their survival and growth, stimulating their digestive and immune systems, and improving water quality. in this present study, grass carp larvae were fed on artemia urmiana, artemia fransiscana and artemia parthen...

Diabetic patients are at risk of acquiring infections. Chronic low-grade inflammation is an important factor in the pathogenesis of diabetic complication. Diabetes causes generation of reactive oxygen species that increases oxidative stress, which may play a role in the development of complications as immune-deficiency and bacterial infection. The study aimed to investigate the role of a natura...

For older populations, most of whom are women, preventing illnesses and deaths through the use of vaccines is a leading public health challenge. Our understanding about how age and sex affect the immune system is limited, and basic and translational research aimed at improving vaccines and immune responses of older persons is needed. In the meantime, fully implementing current vaccine recommend...

| This paper investigates the relevance of the immune system metaphor to Time Dependent Optimization (TDO). At rst, we review previous results underlining the over-average reactiveness and robustness featured by a Simple Artiicial Immnune System (Sais) in comparison to well known evolutionist approaches ((GC99]). Then, we evaluate its immunization capability (i.e. improving robustness to previo...

The phrase "think globally, act locally" was coined in the early 1970s and directed individuals to clean up their local environment with the ultimate goal of improving the health of the entire planet. Several recent studies indicate that similar considerations apply to the immune system, in which small numbers of leukocytes, such as pulmonary dendritic cells, can modify the local immune environ...

This study was conducted to evaluate the effects of dietary inclusion of thyme essential oil (TEO) on growth performance and immune responses of broiler chicks subjected to heat stress (HS). Broilers were divided into five groups; group 1) chicks fed with basal diet and reared under thermoneutral condition; group 2) chicks fed with basal diet and subjected to HS condition; and groups 3, 4 and 5...

Dr. Linus Pauling noted that vitamin C is a critically important water-soluble antioxidant, as it protects proteins and lipids from free radical damage associated with infection, intensive exercise, and other stres-sors that can injure cells.1-3 These very properties make vitamin C a valuable agent for improving immune function. By suppressing oxidative stress, vitamin C increases the life span...