Institution
Jewish Hospital
Healthcare•Cincinnati, Ohio, United States•
About: Jewish Hospital is a healthcare organization based out in Cincinnati, Ohio, United States. It is known for research contribution in the topics: Antigen & Population. The organization has 3881 authors who have published 3414 publications receiving 123044 citations.
Topics: Antigen, Population, Pregnancy, Thrombophilia, Transplantation
Papers published on a yearly basis
Papers
More filters
••
TL;DR: The distribution in muscle of the voltage-gated Na channel responsible for the action potential is explored using the loose patch-clamp technique, and Na currents in 5–10 µm-diameter membrane patches are measured as a function of distance from the end plate region of snake and rat muscle fibres.
Abstract: Neuronal function depends crucially on the spatial segregation of specific membrane proteins, particularly the segregation associated with sites of synaptic contact. Understanding the factors governing this localization of proteins is a major goal of cellular neurobiology. A conspicuous example of synaptic specialization is the almost exclusive localization of vertebrate skeletal muscle acetylcholine (ACh) receptors to the subsynaptic membrane of the neuromuscular junction (for example, refs 1,2). The localization of other membrane proteins in skeletal muscle has been much less studied, but a knowledge of their distribution is crucial for understanding the factors governing regional specialization. We have explored the distribution in muscle of the voltage-gated Na channel responsible for the action potential using the loose patch-clamp technique, and have measured Na currents in 5-10 micron-diameter membrane patches as a function of distance from the end plate region of snake and rat muscle fibres. Here we report that the Na current density immediately adjacent to the endplate is 5-10-fold higher than at regions away from the endplate. The increased Na current density falls off rapidly with distance, reaching the background level 100-200 micron from the endplate. Although one might expect ACh receptors to be concentrated near the region of ACh release, such a concentration for Na channels, which propagate the impulse throughout the length of the cell, is surprising and suggests that factors similar to those responsible for concentrating ACh receptors at the endplate also operate to concentrate Na channels.
106 citations
••
TL;DR: It is speculated that PCOS, associated with obesity and extreme obesity, is a treatable promoter of IIH and is associated with reduced CSF resorption in the arachnoid villi of the brain.
106 citations
••
105 citations
••
TL;DR: Patients with vein occlusion were more likely to have high levels of the major determinant of hypofibrinolysis, plasminogen activator inhibitor activity, and the 4G/4G polymorphism of the PAI1 gene.
Abstract: Objective To determine whether heritable thrombophilia and hypofibrinolysis were risk factors for retinal vein occlusion. Design Measures of thrombophilia (increased likelihood of thrombus formation) included anticardiolipin antibodies (IgG and IgM), the lupus anticoagulant (including dilute Russell viper venom clotting time), antigenic proteins C and S, and homocysteine. Polymerase chain reaction assays were performed for 3 thrombophilic gene mutations (factor V Leiden, methylenetetrahydrofolate reductase, and prothrombin gene). Measures of hypofibrinolysis (reduced ability to lyse thrombi) included lipoprotein Lp(a), plasminogen activator inhibitor activity, and polymerase chain reaction analysis of the hypofibrinolytic 4G/5G polymorphism of the PAI1 gene. These coagulation measures were performed in 17 patients with retinal vein occlusions with comparison with serologic coagulation measures and polymerase chain reaction assays in 40 and 234 healthy normal volunteers as controls, respectively. Results Of 14 patients with retinal vein occlusion with measures of dilute Russell viper venom clotting time, a thrombophilic antiphospholipid antibody, 6 (43%) had abnormal results (>38.8 seconds) compared with 1 (3%) of 30 controls ( P =.002). Of 17 patients with vein occlusion, 3 (18%) were heterozygous for the thrombophilic factor V Leiden G1691A mutation compared with 7 (3%) of 233 controls ( P =.02). Of 17 patients with vein occlusion, 2 (12%) had normal alleles ( 5G/5G ) for the plasminogen activator inhibitor gene promoter; the other 15 (88%) were heterozygous or homozygous for the 4G polymorphism, which is associated with hypofibrinolysis. Of 234 controls, 85 (36.3%) had the 5G/5G allele; 149 (63.7%) were heterozygous or homozygous for the 4G polymorphism ( P = .03). Patients with vein occlusion were more likely to have high levels of the major determinant of hypofibrinolysis, plasminogen activator inhibitor activity. These levels were high (>22 U/L) in 6 (38%) of 16 patients with vein occlusion compared with 1 (2%) of 40 controls (χ 2 =12.8; P =.001). Patients with vein occlusion were more likely (8/16 [50%]) to have high levels of hypofibrinolytic Lp(a) (>35 mg/dL) than controls (5/40 [13%]; χ 2 =9; P =.003). The median Lp(a) level in patients with vein occlusion who had the 4G/4G genotype was 62 mg/dL compared with 5.3 mg/dL in controls with the 4G/4G genotype ( P =.05). Conclusion Thrombophilia and hypofibrinolysis are possible causes of retinal vein occlusion.
105 citations
••
TL;DR: Data suggest that chronic neuroleptic treatment is the cause of striatal enlargement in the laboratory rat, and that this enlargement is most prominent in rats that have the high-VCM syndrome.
105 citations
Authors
Showing all 3894 results
Name | H-index | Papers | Citations |
---|---|---|---|
John C. Morris | 183 | 1441 | 168413 |
David L. Kaplan | 177 | 1944 | 146082 |
Robert H. Purcell | 139 | 666 | 70366 |
Nancy J. Cox | 135 | 778 | 109195 |
Jennifer S. Haas | 128 | 840 | 71315 |
David A. Cheresh | 125 | 337 | 62252 |
John W. Kappler | 122 | 464 | 57541 |
Philippa Marrack | 120 | 416 | 54345 |
Arthur Weiss | 117 | 380 | 45703 |
Thomas J. Kipps | 114 | 748 | 63240 |
Michael Pollak | 114 | 663 | 57793 |
Peter M. Henson | 112 | 369 | 54246 |
Roberto Bolli | 111 | 528 | 44010 |
William D. Foulkes | 108 | 682 | 45013 |
David A. Lynch | 108 | 714 | 59678 |