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Full-Text Articles in Life Sciences
Modulation Of Macrophage Chemiluminescence By Biological Response Modifiers And Neuroendocrine Hormones, Jeffrey M. Tosk
Modulation Of Macrophage Chemiluminescence By Biological Response Modifiers And Neuroendocrine Hormones, Jeffrey M. Tosk
Loma Linda University Electronic Theses, Dissertations & Projects
Neuroendocrine mediators have been shown to influence a broad spectrum of immune functions suggesting the existence of a neuroimmune regulatory axis effecting feedback control of the immune response. Most studies in support of this paradigm have employed either intact animals or immune cells derived from blood and other tissues. Under these conditions it becomes difficult to cope with numerous variables associated with the complex milieu of the immune system and the interpretation of data. An in vitro model using a murine macrophage cell line, J774, was developed to circumvent these problems. Using this model, macrophages activated by exposure to the …
Heartbeat Rate Modulation Mediated By The Ventral Nerve Cord In The Honey Bee, Apis Mellifera, Ernest R. Schwab
Heartbeat Rate Modulation Mediated By The Ventral Nerve Cord In The Honey Bee, Apis Mellifera, Ernest R. Schwab
Loma Linda University Electronic Theses, Dissertations & Projects
Most insect circulatory physiologists believe the insect heart to be myogenic. There is disagreement, however, about mechanisms regulating heart function. Modulation is considered to occur via either neural or neurohormonal mechanisms but there is little existing data of the type necessary for proving one mechanism or the other. Using the recording technique of impedance conversion, heartbeat patterns were established for intact Honey Bees during rest and also during nectar feeding and locomotion, activities that both result in modulating heartbeat. Heartbeat patterns were then described separately for bees in which assumed neural regulation was disrupted (the ventral nerve cord was transected), …