allergic rhinitis (ar) is a very frequent disease which is not only characterized by nasal symptoms, but also with behavioural changes. this study evaluated the serum serotonin levels in patients with pollen-induced ar during and outside the pollen season. one-hundred-two  (56 females, 46 males, median age: 28.7 years) were included in this study: 56 with seasonal ar (sar) evaluated outside the...

background: ritalin has high tendency to be abused. it has been the main indication to control attention deficit hyperactivity disorder. the college students may seek for it to improve their memory, decrease the need for sleep (especially during exams), which at least partially, can be related to serotonergic system. therefore, it seems worthy to evaluate the effect of ritalin intake on mature ...

atavistic residues of aggressive behavior prevailing in animal life, determined by testosterone, remain attenuated in man and suppressed through familial and social inhibitions. however, it still manifests itself in various intensities and forms from; thoughts, anger, verbal aggressiveness, competition, dominance behavior, to physical violence. testosterone plays a significant role in the arous...

Introduction: The aim of this research was to compare active and passive recovery after a session of intense exhaustive training on the level of serotonin in the serum of the runners. Materials and Methods: In this semi-experimental study, 26 male elite runners were randomly assigned to two groups of active (n=12) and passive (n=14) recovery. Half an hour before the start of the training, 5 ...

introduction: previous studies have shown that ghrelin inhibits the activity of hypothalamus –pituitary – thyroid (h–p-t) axis. it is also proved that ghrelin increases appetite via agouti related protein and neuropeptide y pathway, decreases t3 & t4 secretion and inhibits serotonin release from hypothalamic synaptosomes. serotonin may interact with ghrelin in control of thyroid hormones secret...

age related cytochemical changes of thymic endocrine cells were studied in 78 day old chicks at five day interval to age of day 60 employing a panel of cytochemical stains. methenamine silver revealed cell morphology including cell processes distinctly while diamine silver revealed a stronger argentaffinity in these cells. the cells had greater affinity for diamine silver compared to methenamin...

Serotonin is an omnipotent molecule in the brain and rest of body plays a pivotal role gut-brain axis.Serotonin’s neurotransmission its function at molecular levels with different genetic variants has beenwidely covered across animal kingdom. Although digestion process ruminants pillared on anaerobicmicroflora present rumen, impact rumen microbial population serotonergic activity seldomexplored...