نتایج جستجو برای: physiologic states
تعداد نتایج: 478643 فیلتر نتایج به سال:
BACKGROUND Pathologic breast conditions are rare in childhood and adolescence. The spectrum of breast disease in the pediatric age group is different from that in adults, and most lesions are benign. OBJECTIVES To describe the causes and characteristics of breast asymmetry in adolescents with normal endocrine profiles and sexual development. METHODS The files of patients with a diagnosis of...
The pressor and antidiuretic actions of arginine vasopressin (AVP) have been well documented. This review focuses on the less widely appreciated actions of AVP which also have important physiologic functions and when better understood may provide important insights into common disease states. These actions include effects on pain perception and bone structure as well as important relationships ...
Maintenance of a reducing redox balance is a critical physiologic function of red cells (RBC) that can be perturbed in variety of RBC pathologies. Here we describe a new approach to evaluate in vivo RBC redox status using a redox sensitive GFP (roGFP2) sensor under control of a β-globin mini-promoter, directing expression specifically to erythroid cells. RoGFP2 expressing RBCs demonstrate ratio...
Heat shock proteins (HSPs) are a highly conserved group of proteins that are constitutively expressed and function as molecular chaperones, aiding in protein folding and preventing the accumulation of misfolded proteins. In the arterial wall, HSPs have a protective role under normal physiologic conditions. In disease states, however, HSPs expressed on the vascular endothelial cell surface can a...
The tumor protein 53 (TP53) tumor suppressor gene is the most frequently somatically altered gene in human cancers. Here we show expression of N-Myc down-regulated gene 1 (NDRG1) is induced by p53 during physiologic low proliferative states, and mediates centrosome homeostasis, thus maintaining genome stability. When placed in physiologic low-proliferating conditions, human TP53 null cells fail...
The heart is a pump. The objective of cardiac pacing is to improve the cardiac output. The most popular method of cardiac pacing (RV) is not physiologic and results in reduced stroke output when compared to that of normal sinus or atrial paced rhythm. Recognition of pacemaker induced low output states and pacemaker aggravated neurological symptoms has quickened interest in physiologic atrial pa...
Physiologic changes, including neurological or pseudo-neurological symptoms, occur across identity states in dissociative identity disorder DID) and can be objectively measured. The idea that dissociative phenomena might be associated with changes in brain function is consistent with research on the brain effects of hypnosis. The authors report a case of psycho-physiologic differences among 4 a...
This monograph compiles innovative data, covering many aspects of lung biology: respiratory mechanics; gas exchange and gas transport; gas diffusion; and control of breathing. It describes physiologic observations, and analyzes and interprets them with the precision that only mathematics and physics can provide. Under the inspirational leadership of Dr. John West, authors from the United States...
Tetralogy of Fallot is the most common cyanotic congenital heart defect, affecting approximately 2700 infants per year born in the United States. The natural history of the tetralogy reflects the adverse physiologic consequences of the underlying structural abnormalities, with only approximately 3% of uncorrected patients surviving past age 40. In this case report, we report an 87-year-old woma...
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