Abstract:
:The current study presents evidence that all human serum contains a class of high-affinity folate binders (KA=2.8 X10(10 liters/mole), which migrate as a single peak on gel filtration. Failure of previous studies to detect this characteristic in all but a minority of subjects is attributable to its variable, often total, saturation. Direct measurement of the total folate binding capacity (TFBC) has been made possible by dissociation of endogenous folate-binder complexes at acid pH, removal of free folate by coated charcoal, and radiofolate tagging. This procedure does not appear to significantly denature the binders, which release and rebind similar quantities of 3H-PGA. In 20 normal subjects, TFBC ranged from 100 to 325 pg/ml (mean+/-SE = 174+/-16), and was always at least 33% saturated. In three clinical conditions, all associated with elevated unsaturated folate binding capacity, three different patterns emerged when TFBC was also measured. Uremic subjects had significantly elevated mean TFBC with normal saturation. In cirrhotic subjects, mean TFBC approximated normal, but saturation was significantly decreased. In pregnancy, two groups were seen: one with increased TFBC and the other with a normal TFBC, some of whom had decreased saturation. Lactobacillus casei serum folate level was about 30 times greater than the TFBC; there was no correlation between the two measurements.
journal_name
Bloodjournal_title
Bloodauthors
Colman N,Herbert Vsubject
Has Abstractpub_date
1976-12-01 00:00:00pages
911-21issue
6eissn
0006-4971issn
1528-0020journal_volume
48pub_type
杂志文章相关文献
BLOOD文献大全abstract::In patients with chronic myeloid leukemia, BCR-ABL mutations contribute to resistance to tyrosine kinase inhibitor therapy. We examined the occurrence of treatment-emergent mutations and their impact on response in patients from the ENESTnd phase 3 trial. At the 3-year data cutoff, mutations were detected in approxima...
journal_title:Blood
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1182/blood-2012-04-423418
更新日期:2013-05-02 00:00:00
abstract::Previous results, presented in abstract form, indicate that replacement of thromboplastin with a mixture of phospholipid and truncated soluble tissue factor apoprotein results in a coagulation assay that can directly measure plasma factor VIIa levels without interference from zymogen factor VII (Atherosclerosis Thromb...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1992-07-01 00:00:00
abstract::Stem cell factor (SCF) and interleukin-3 (IL-3) both act on several target hematopoietic populations, including mast cells. We have isolated a unique murine mast cell line, B6M, that is phenotypically similar to immature mast cells. For B6M cells, IL-3 is a survival factor and alone does not stimulate proliferation. S...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-05-01 00:00:00
abstract::Tumor necrosis factor-alpha (TNF-alpha) can bind to two distinct transmembrane receptors, the p55 and p75 TNF receptors. We compared the capability of two mutant TNF proteins with exclusive affinity for the p55 or p75 TNF receptor with that of wild type TNF, to activate the hemostatic mechanism in baboons. Both activa...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-08-01 00:00:00
abstract::Persistent fibrin deposition in tissues characterizes the early pathology of many types of injury. In an animal model of bleomycin-induced lung fibrosis, increased expression of type 1 plasminogen activator inhibitor (PAI-1) is associated with accumulation of fibrin in fibroproliferative lesions. Plasmin proteolysis o...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-05-01 00:00:00
abstract::Factor VIII (FVIII) functions as a cofactor within the intrinsic pathway of blood coagulation. Quantitative or qualitative deficiencies of FVIII result in the inherited bleeding disorder hemophilia A. Expression of FVIII (domain structure A1-A2-B-A3-C1-C2) in heterologous mammalian systems is 2 to 3 orders of magnitud...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2003-10-3591
更新日期:2004-05-01 00:00:00
abstract::The t(11;14)(q13;q32) results in up-regulation of cyclin D1 and is the most common translocation detected in multiple myeloma, where it is also associated with a lymphoplasmacytic morphology. We performed an interphase fluorescent in situ hybridization (FISH) study to determine the clinical and biologic significance o...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.v99.10.3735
更新日期:2002-05-15 00:00:00
abstract::Additional sex combs-like 1 (ASXL1), an epigenetic modulator, is frequently mutated in myeloid neoplasms. Recent analyses of mutant ASXL1 conditional knockin (ASXL1-MT-KI) mice suggested that ASXL1-MT alone is insufficient for myeloid transformation. In our previous study, we used retrovirus-mediated insertional mutag...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood.2019004613
更新日期:2020-10-01 00:00:00
abstract::Myelofibrosis (MF) is a BCR-ABL1-negative myeloproliferative neoplasm characterized by clonal myeloproliferation, dysregulated kinase signaling, and release of abnormal cytokines. In recent years, important progress has been made in the knowledge of the molecular biology and the prognostic assessment of MF. Convention...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2014-07-575373
更新日期:2014-10-23 00:00:00
abstract::Recent findings that hemoglobin S gelation and sickling are pH-dependent and also influence oxygen affinity suggested that the red cells containing this hemoglobin variant might show an abnormal Bohr effect. We therefore studied the effects of pH variation on the in vitro oxygen affinity of whole blood from persons wi...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1979-03-01 00:00:00
abstract::Humans and grey collie dogs with cyclic neutropenia are known to suffer from an increased rate of bacterial infection. Because of the previously described microanatomic abnormalities of lysosome formation found in the polymorphonuclear leukocytes (PMNs) of dogs with canine cyclic neutropenia, studies of these cells we...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1975-12-01 00:00:00
abstract::Bone marrow CD34(+) cell apoptosis (annexin V), proliferation (Ki-67), and Bcl-2-related protein expression was evaluated by flow cytometry in 102 patients with myelodysplastic syndrome (MDS) and acute myeloid leukemia secondary to MDS (MDS-AML) and in 30 normal donors (NBM). Apoptosis was significantly increased in r...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:2000-12-01 00:00:00
abstract::Idiopathic pneumonia syndrome (IPS) is a major complication after allogeneic bone marrow transplantation (allo-BMT) and involves the infiltration of donor leukocytes and the secretion of inflammatory cytokines. We hypothesized that leukocyte recruitment during IPS is dependent in part upon interactions between chemoki...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2003-08-2708
更新日期:2004-03-15 00:00:00
abstract::In cases of T-cell acute lymphoblastic leukemia (T-ALL), the basic helix-loop-helix (bHLH) oncogene SCL/tal undergoes frequent rearrangements activating ectopic expression. Despite the compelling epidemiological association of SCL/tal expression with T-ALL, no specific transforming function has been attributable to th...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1995-01-15 00:00:00
abstract::IL-17 and its receptor are founding members of a novel family of inflammatory cytokines. IL-17 plays a pathogenic role in rheumatoid arthritis (RA)-associated bone destruction. However, IL-17 is also an important regulator of host defense through granulopoiesis and neutrophil trafficking. Therefore, the role of IL-17 ...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2005-09-010116
更新日期:2007-05-01 00:00:00
abstract::Human myeloma cells freshly isolated from 40 patients with IgG multiple myeloma (MM, 10 in stage I and 30 in stage III), were cultured for 48 hours with recombinant B cell stimulatory factor 2 (rBSF-2)/interleukin-6 (IL-6), which is considered a major growth factor for myeloma cells. Uptake of 3H-thymidine by these pu...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1988-08-01 00:00:00
abstract::Members of the 14-3-3 family of proteins function as adapters/modulators that recognize phosphoserine/phosphothreonine-based binding motifs in many intracellular proteins and play fundamental roles in signal transduction pathways of eukaryotic cells. In platelets, 14-3-3 plays a wide range of regulatory roles in phosp...
journal_title:Blood
pub_type: 杂志文章,评审
doi:10.1182/blood-2017-09-742650
更新日期:2018-05-31 00:00:00
abstract::Inherited bleeding, thrombotic, and platelet disorders (BPDs) are diseases that affect ∼300 individuals per million births. With the exception of hemophilia and von Willebrand disease patients, a molecular analysis for patients with a BPD is often unavailable. Many specialized tests are usually required to reach a put...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2015-12-688267
更新日期:2016-06-09 00:00:00
abstract::The induction of tumor cell differentiation represents an attractive strategy for the treatment of a wide range of malignancies. Differentiation of HL-60 promyelocytic leukemia cells towards neutrophils or monocytes has been shown to induce apoptotic cell death, which is inhibited by bcl-2 over-expression. However, th...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1996-05-01 00:00:00
abstract::Hermansky-Pudlak syndrome (HPS) is an inherited hemorrhagic disease affecting the related subcellular organelles platelet dense granules, lysosomes, and melanosomes. The mouse genes for HPS, pale ear and pearl, orthologous to the human HPS1 and HPS2 (ADTB3A) genes, encode a novel protein of unknown function and the be...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:2002-03-01 00:00:00
abstract::We report in this paper that a novel small molecule, JTZ-132, induced growth and differentiation of megakaryocytic progenitor cells and improved thrombocytopenia in myelosuppressed mice. JTZ-132 stimulated proliferation of UT-7/TPO cells, a cell line highly sensitive to thrombopoietin (TPO), and exhibited full efficac...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2003-10-3623
更新日期:2004-07-01 00:00:00
abstract::Polycythemia vera (PV) and essential thrombocythemia (ET) are chronic myeloproliferative disorders characterized by an increased incidence of thrombo-hemorrhagic complications. The acquired somatic Janus kinase 2 (JAK2) V617F mutation is present in the majority of PV and ET patients. Because aberrant protein Tyr-phosp...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2008-12-196535
更新日期:2010-01-21 00:00:00
abstract::Before the contemporary development of rationally designed antineoplastic therapies, cladribine was identified as a lymphocyte-specific agent. Its profound impact on the natural history of hairy cell leukemia, with responses approaching 100% and a median duration of response of nearly a decade after only a single 7-da...
journal_title:Blood
pub_type: 杂志文章,评审
doi:10.1182/blood-2010-02-246140
更新日期:2010-10-21 00:00:00
abstract::Endothelial progenitor cells are critically involved in essential biologic processes, such as vascular homeostasis, regeneration, and tumor angiogenesis. Endothelial colony-forming cells (ECFCs) are endothelial progenitor cells with robust proliferative potential. Their profound vessel-forming capacity makes them a pr...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2008-09-181362
更新日期:2009-06-25 00:00:00
abstract::The translocation t(15;17)(q22;q21) is seen exclusively in patients with acute promyelocytic leukemia (APL) and in the promyelocytic blast crisis of chronic myeloid leukemia (CML). This translocation juxta-poses the promyelocytic leukemia (PML) gene on chromosome 15 and the retinoic acid receptor-alpha (RARA) gene on ...
journal_title:Blood
pub_type: 杂志文章
doi:
更新日期:1994-05-15 00:00:00
abstract::Most bone marrow (BM) malignancies develop in association with an angiogenic phenotype and increased numbers of endothelial cells. The molecular mechanisms involved in the modulation and recruitment of BM endothelium are largely unknown and may provide novel therapeutic targets for neoplastic diseases. We observed tha...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2005-06-2208
更新日期:2006-01-01 00:00:00
abstract::Although CD4(+)CD25(+) T cells (T regulatory cells [Tregs]) and natural killer T cells (NKT cells) each protect against graft-versus-host disease (GVHD), interactions between these 2 regulatory cell populations after allogeneic bone marrow transplantation (BMT) have not been studied. We show that host NKT cells can in...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2008-06-165506
更新日期:2009-04-30 00:00:00
abstract::Leukocyte extravasation involves interdependent signaling pathways underlying the complex dynamics of firm adhesion, crawling, and diapedesis. While signal transduction by agonist-bound chemokine receptors plays a central role in the above responses, it is unclear how it contributes to the sustained and concurrent nat...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2008-10-183699
更新日期:2009-07-30 00:00:00
abstract::We report here 7 new mutations in the ADAMTS13 gene responsible for Upshaw-Schulman syndrome (USS), a catastrophic phenotype of congenital thrombotic thrombocytopenic purpura, by analyzing 5 Japanese families. There were 3 mutations that occurred at exon-intron boundaries: 414+1G>A at intron 4, 686+1G>A at intron 6, a...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2003-06-1796
更新日期:2004-02-15 00:00:00
abstract::Systemic inflammation perturbs the bone marrow environment by evicting resident B cells and favoring granulopoiesis over lymphopoiesis. Despite these conditions, a subset of marrow B cell remains to become activated and produce potent acute immunoglobulin M (IgM) responses. This discrepancy is currently unresolved and...
journal_title:Blood
pub_type: 杂志文章
doi:10.1182/blood-2015-03-635805
更新日期:2015-09-03 00:00:00