Homeostasis maintenance

Homeostasis Maintenance of normal, internal stability in an organism by coordinated responses of the organ systems, particularly the endocrine. 

Kidney Renal failure Endothelial Hollow fiber Support device, replacement Blood filtration, homeostasis maintenance [31]... 

Hodgkin s disease a malignant condition characterized by progressive enlargement of lymph nodes, spleen, and lymphoid tissues homeostasis maintenance of equilibrium with respect to the physiological functions of the body (stability of the metabolism, body temperature, pH value of the blood, blood pressure, etc.) by means of regulatory systems... 

The transcription factor NP-kB controls the expression of numerous genes that modulate the immune and stress responses, onset, and the resolution of inflammation, cell adhesion, calcium homeostasis, maintenance of intercellular communications, and regulation of cellular proliferation, and protection against... 

The intima is the innermost layer and it is composed mainly of endothelial cells (ECs). This layer controls the molecular transfer inside the wall, provides antithrom-bogenicity, and is involved in homeostasis maintenance, muscular tone, and immunogenic and inflammatory regulation. 

The presented mechanism of active and passive uptake and transport of riboflavin has been suggested by various research groups (Ball et al. 2004b Foraker et al. 2003 Huang and Swaan 2000). However, the problem is still under discussion. Saturable active transport dominates the riboflavin uptake processes and is indisputably proven in every examined in vivo and in vitro systems. Passive diffusion at high concentrations also appears to be inevitable. However, it may be antidpated that some studies may also confirm involvement of a receptor-mediated mechanism and the role of riboflavinbinding protein in homeostasis maintenance in other mammalian tissues and organs. 

ANPs play an important role in the maintenance of cardiovascular homeostasis by counterbalancing the renin—angiotensin (RAS) system. ANP, the main circulating form of the natriuretic peptides, effectively relaxes vascular smooth muscle, promotes the excretion of sodium and water, and in the CNS inhibits vasopressin release and antagonizes AT-II induced thirst. 

Biological Antioxidant Models. Tea extracts, tea polyphenol fractions, and purified catechins have all been shown to be effective antioxidants in biologically-based model systems. A balance between oxidants and antioxidants is critical for maintenance of homeostasis. Imbalances between free radicals and antioxidants may be caused by an increased production of free radicals or decreased effectiveness of the antioxidants within the reaction system. These imbalances can be caused by the radicals overwhelming the antioxidants within the system, or by an excess of antioxidants leading to a prooxidant functionaHty (105—118). When antioxidant defense systems are consistently overwhelmed by oxidative reactions, significant damage can... 

Potassium homeostasis refers to the maintaining and regulating of a relatively stable and mostly internal (intracellular) potassium balance (concentration), although more generally it refers to the maintenance of potassium balance in any compartment (e.g. in the blood). 

The fundamental role of blood in the maintenance of homeostasis and the ease with which blood can be obtained have meant that the study of its constituents has been of central importance in the development of biochemistry and clinical biochemistry. The basic properties of a number of plasma proteins, including the immunoglobulins (antibodies), are described in this chapter. Changes in the amounts of various plasma proteins and immunoglobulins occur in many diseases and can be monitored by electrophoresis or other suitable procedures. As indicated in an earlier chapter, alterations of the activities of certain enzymes found in plasma are of diagnostic use in a number of pathologic conditions. 

The maintenance of cellular homeostasis involves a balance of cell division, differentiation, senescence, and apoptosis. 

Electrolytes are involved in many metabolic and homeostatic functions, including enzymatic and biochemical reactions, maintenance of cell membrane structure and function, neurotransmission, hormone function, muscle contraction, cardiovascular function, bone composition, and fluid homeostasis. The causes of electrolyte abnormalities in patients receiving PN may be multifactorial, including altered absorption and distribution excessive or inadequate intake altered hormonal, neurologic, and homeostatic mechanisms altered excretion via gastrointestinal and renal losses changes in fluid status and fluid shifts and medications. 

Because the vitamin D-endocrine system is responsible in large part for the maintenance of extra- and intracellular calcium homeostasis, it is reasonable to conclude that the interference of lead with renal... 

Describe the potential role of medications in the maintenance of homeostasis... 

This maintenance of relatively constant or steady-state internal conditions is referred to as homeostasis. It is important because the cells and tissues of the body will survive and function efficiently only when these internal conditions are properly maintained. This is not to say that the internal... 

Table 1.1 Contribution of Organ Systems to the Maintenance of Homeostasis Organ System Function...

All of the organ systems in the body, except the reproductive system, contribute to the maintenance of homeostasis (see Table 1.1). For example, the gastrointestinal tract digests foods to provide nutrients to the body. The respiratory system obtains oxygen and eliminates carbon dioxide. The circulatory system transports all of these materials and others from one part of the body to another. The renal system eliminates wastes and plays a role in regulating blood volume and blood pressure. 

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