نتایج جستجو برای: pv cell
تعداد نتایج: 1703555 فیلتر نتایج به سال:
Inactivated polio vaccines, which have been used in many countries for more than 50 years, are produced by treating live poliovirus (PV) with formaldehyde. However, the molecular mechanisms underlying virus inactivation are not well understood. Infection by PV is initiated by virus binding to specific cell receptors, which results in viral particles undergoing sequential conformational changes ...
The basolateral amygdala (ABL) contains pyramidal projection neurons (PNs) and several discrete subpopulations of nonpyramidal interneurons. Interneurons containing the calcium-binding protein parvalbumin (PV) constitute about half of all ABL interneurons, and provide a robust innervation of the perisomatic domain of PNs. Although it is known that PNs reciprocate this projection by innervating ...
A high-sucrose diet (SU) decreases insulin action in the liver (Pagliassotti MJ, Shahrokhi KA, and Moscarello M. Am J Physiol Regulatory Integrative Comp Physiol 266: R1637-R1644, 1994). The present study was conducted to characterize the effect of SU on glucagon action in isolated periportal (PP) and perivenous (PV) hepatocytes by measuring glucagon-stimulated glycogenolysis and glucose releas...
Polycythemia vera (PV) is a clonal stem cell disorder characterized by increased erythrocyte production. Its etiology is not fully understood, and hemorrhage, thrombosis, and hyperviscosity may occur at any time during the course of this disorder. Treatment depends on the most affected cell type, duration and severity of the condition, and patient age. PV treatment can involve phlebotomy, admin...
A neuroprotective role for Ca(2+)-binding proteins in neurodegenerative conditions ranging from ischemia to Alzheimer's disease has been suggested in several studies. A key phenomenon in neurodegeneration is the Ca(2+)-mediated excitotoxicity brought about by the neurotransmitter glutamate. To evaluate the relative ability to resist excitotoxicity of neurons containing the slow-onset Ca(2+)-bin...
Parvovirus-B19 (PV-B19) is a member of Parvoviridae, which is one of the smallest DNA viruses. PV-B19-associated diseases usually serve as a good representation of the balance of virus, host response and the immune system. The diseases manifested with PV-B19 are erythema infectiosum, which is common in children, hydrops fetalis, transient pure red cell aplasia in patients with chronic hemolytic...
Pemphigus vulgaris (PV) is a cutaneous autoimmune disease characterized by blister formation in the suprabasilar layers of skin and mucosae and anti-desmoglein-3 (Dsg3) autoantibodies bound to the surface of lesional keratinocytes and circulating in the serum of patients. This disease can be reproduced in neonatal mice by passive transfer of patients' IgG, indicating that humoral immunity plays...
To quantify the effects of methylmercury (MeHg) on amacrine and on ON-bipolar cells in the retina, experiments were performed in MeHgexposed groups of adult trahiras (Hoplias malabaricus) at two dose levels (2 and 6 μg/g, ip). The retinas of test and control groups were processed by mouse anti-parvalbumin and rabbit anti-αprotein kinase C (αPKC) immunocytochemistry. Morphology and soma location...
This work had as its objective the production of polyoma virus (PV) DNA of high specific radioactivity. Such a highly labeled tumorogenic virus DNA would have many applications in physical, chemical, and biological studies where high sensitivity of detection is essential-for example, for studies on the properties and fate of the viral gene after infection of a cell. This material has been produ...
We have investigated the question of erythropoietin (Epo) hypersensitivity versus Epo independence as the basis for the endogenous erythroid bursts (EEBs) that develop in cultures without added Epo from hematopoietic cells of polycythemia vera (PV) patients. Using an improved serum-free (SF) medium containing interleukin (IL)-3, but no insulin-like growth factor-1 (IGF-1), and devoid of contami...
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