Abstract：
:Serum vitamin B12 levels are often low in human immunodeficiency virus (HIV)-infected patients. However, only a few patients appear to have actual vitamin B12 deficiency. A low red cell folate level accompanying the low vitamin B12 level makes the presence of vitamin B12 deficiency more likely. Our experience suggests that a low red cell folate level always indicates deficiency, but does not differentiate between vitamin B12 and folate deficiency. The deoxyuridine suppression test and the assay of serum or plasma total homocysteine and/or of methylmalonic acid levels can also be useful in the identification of patients with true vitamin B12 deficiency. HIV-positive patients frequently have absorption disorders, including vitamin B12 malabsorption. However, the correlation between vitamin B12 malabsorption and serum vitamin B12 and plasma homocysteine levels is poor. Abnormalities in vitamin B12-binding proteins, which are often found in HIV-positive patients, may explain many cases of low vitamin B12 levels. Current evidence suggests that low vitamin B12 levels are more common as the HIV disease progresses. The results of vitamin B12 treatment have been disappointing thus far, including the prevention of toxicity induced by azidothymidine. The possible role of vitamin B12 treatment in the long-term survival of HIV-infected patients is at present unknown. However, it is important to identify those patients who have real vitamin B12 deficiency to treat or prevent their hematologic and/or neurological symptoms.
journal_name
Semin Hematoljournal_title
Seminars in hematologyauthors
Remacha AF,Cadafalch Jsubject
Has Abstractpub_date
1999-01-01 00:00:00pages
75-87issue
1eissn
0037-1963issn
1532-8686journal_volume
36pub_type
杂志文章,评审abstract：:Comprehensive study of the major chromosomal/molecular abnormalities in children and adults with acute lymphoblastic leukemia (ALL) has demonstrated prognostic utility for many of these anomalies, to the extent that cytogenetic and molecular genetic evaluations are now required for optimal clinical management of newly...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(00)90018-0
更新日期：2000-10-01 00:00:00
abstract：:Copper is an essential trace element that is required for a number of enzymes which are necessary for normal metabolic function. Metabolic balance studies have demonstrated that daily copper losses are approximately 1.3 mg/day. In order to remain in copper balance, the average adult male must consume a diet which cont...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1983-04-01 00:00:00
abstract：:Indolent non-Hodgkin lymphoma (NHL) comprises a group of incurable, generally slow-growing lymphomas highly responsive to initial therapy, with a relapsing and progressive course. Rituximab, an anti-CD20 antibody, has had a large impact on the treatment of indolent NHL. Its effectiveness as a single agent and in conju...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2010.01.003
更新日期：2010-04-01 00:00:00
abstract：:A retrospective study was conducted to determine treatment patterns for idiopathic thrombocytopenia purpura (ITP) across the US and to determine the cost of its treatment with high-dose intravenous immunoglobulin (IVIg) and anti-D therapy. Information on the incidence, treatment patterns, hospital care, and costs for ...
journal_title：Seminars in hematology
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:5-Aza-2'-deoxycytidine (decitabine; Dacogen, MGI Pharma, Inc, Bloomington, MN) is a cytidine analog that inhibits DNA methyltransferases resulting in loss of DNA methylation with subsequent gene re-expression. This compound was first synthesized over 40 years ago and since that time much information has been learned r...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2005.05.006
更新日期：2005-07-01 00:00:00
abstract：:High-dose chemoradiotherapy with allogeneic bone marrow or peripheral blood stem cell transplantation (SCT) is a potentially curative treatment for advanced or poor-prognosis hematological malignancies. This procedure was initially considered as a means to deliver supralethal doses of chemotherapy and radiation for th...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/shem.2002.30909
更新日期：2002-01-01 00:00:00
abstract：:Thrombus forms on catheters and other indwelling synthetic materials. Systemic heparin infusion decreases, but does not eliminate thrombus formation. The day is approaching when systemic heparinization may no longer be indicated to suppress catheter thrombogenesis. Passivation of catheters by heparin immobilization is...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1991-10-01 00:00:00
abstract：:Allogeneic hematopoietic stem cell transplantation (HSCT) is the only potential cure for most bone marrow (BM) failure syndromes and hemoglobinopathies. Over the past decade, umbilical cord blood (UCB) has been used more frequently as a stem cell source in patients who lack a suitable BM donor. Although graft failure ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2009.10.004
更新日期：2010-01-01 00:00:00
abstract：:Hereditary hemochromatosis is one of the most common inherited disorders among Caucasians of European ancestry. Malregulation of iron absorption from the duodenum eventually leads to iron overload. Although the time required to become iron loaded is variable, it is clear that most homozygotes will eventually become sy...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1998-01-01 00:00:00
abstract：:Patients with acute myeloid leukemia (AML) who achieve complete remission after induction therapy require post remission therapy (PRT) in order to remain disease free. The role of autologous hematopoietic cell transplantation (autoHCT) in the PRT setting is controversial and is largely based on older trials that were ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2019.01.001
更新日期：2019-04-01 00:00:00
abstract：:Anemia of chronic disease (ACD) or inflammation may be secondary to infections, autoimmune disorders, chronic renal failure, or malignancies. It is characterized by an immune activation with an increase in inflammatory cytokines and resultant increase in hepcidin levels. In addition, inappropriate erythropoietin level...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2013.06.006
更新日期：2013-07-01 00:00:00
abstract：:Natural killer cells are an essential component of the innate immune system and play a crucial role in immunity against malignancies, without, at difference with T cells, requiring antigen priming or inducing graft-versus-host-disease. Hence, Natural Killer cells can provide a valuable source of allogeneic "off-the-sh...
journal_title：Seminars in hematology
pub_type： 杂志文章
doi：10.1053/j.seminhematol.2020.10.004
更新日期：2020-10-01 00:00:00
abstract：:Cyclic neutropenia is a rare hematologic disorder, characterized by repetitive episodes of fever, mouth ulcers, and infections attributable to recurrent severe neutropenia. Fluctuations in blood cells are due to oscillatory production of cells by the bone marrow. Recent genetic, molecular, and cellular studies have sh...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/shem.2002.31917
更新日期：2002-04-01 00:00:00
abstract：:Myeloproliferative neoplasms (MPN) include polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF). MPN are characterized by clonal proliferation of myeloid progenitors leading to erythrocytosis, thrombocytosis, or leukocytosis, and risk of hemorrhagic and thrombotic events, as well as ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2018.04.005
更新日期：2018-10-01 00:00:00
abstract：:Severe neutropenia renders patients susceptible to life-threatening bacterial and fungal infections. Despite improvements in supportive care and antimicrobial therapy, morbidity and mortality remains significant. Since the 1960s, granulocyte transfusions have been used to either treat or prevent serious infections in ...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2019.11.002
更新日期：2019-10-01 00:00:00
abstract：:Our advanced knowledge of coagulation has led to the synthesis of novel procoagulant substances, such as recombinant activated factor VII (rFVIIa; NovoSeven, Novo Nordisk, Bagsvaerd, Denmark). Similarly, in-depth understanding of the interaction between anticoagulant proteins and their natural inhibitors has led to th...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2005.11.023
更新日期：2006-01-01 00:00:00
abstract：:Myelodysplastic syndromes (MDS) are clonal hematologic disorders characterized by ineffective hematopoiesis resulting in peripheral cytopenia and by increased progression to acute myelocytic leukemia (AML). With the exception of allogeneic stem cell transplantation, there is generally no curative treatment for these d...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2004.02.002
更新日期：2004-04-01 00:00:00
abstract：:Inhibition of antibody-coated platelet destruction in patients with immune thrombocytopenic purpura (ITP) is a well-known mechanism of treatment effect. A number of interventions that would ameliorate the thrombocytopenic effect of ITP patient plasma when infused into normal recipients were demonstrated in 1965. Subse...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(00)90104-5
更新日期：2000-07-01 00:00:00
abstract：:Even though the overall outcome after allogeneic transplant has improved significantly in the last decades, late infectious diseases are still the most important causes of late morbidity and mortality. Here, impaired immune reconstitution and therapy of chronic graft-versus-host disease (GVHD) represent the major risk...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2011.10.009
更新日期：2012-01-01 00:00:00
abstract：:Over the past 2 decades, treatment of Hodgkin's disease has evolved considerably through innovations in the management of various stages. The impact of various treatments on the 5-, 10-, and 15-year results is being balanced against delayed morbidity, such as organ damage and second malignancies, produced by the inten...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1988-04-01 00:00:00
abstract：:These two issues of the Seminars in Hematology will provide the physician the necessary knowledge to help make sense of this somewhat confusing array of diseases. The subdivisions of MDS reflect the precision of our techniques of dissection, with morphological and histochemical analyses forming the foundation to ident...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1996-04-01 00:00:00
abstract：:The immunomodulatory drug (IMiD) lenalidomide is a more potent immunomodulator than thalidomide with respect to its effects on cytokine modulation and increased T-cell proliferation. Of all the IMiDs, clinical trial data are most mature for lenalidomide. In phase I studies, dose-limiting toxicities of lenalidomide wer...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2005.10.004
更新日期：2005-10-01 00:00:00
abstract：:Infectious diseases are the leading causes of death in patients with multiple myeloma (MM). Major changes have occurred in the spectrum of infections paralleling the changes in the treatment of MM. Bacteria (particularly gram-negative organisms) are the most frequent etiologic agents, and invasive fungal infections ca...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2009.03.006
更新日期：2009-07-01 00:00:00
abstract：:Most of the major advances in thrombosis research have occurred in the last 50 years, reflecting progress in biomedical sciences and clinical trials methodology. Improved understanding of the mechanisms of thrombogenesis has led to the discovery of a plethora of new antithrombotic agents that target many of the key st...
journal_title：Seminars in hematology
pub_type： 历史文章,杂志文章,评审
doi：
更新日期：1999-10-01 00:00:00
abstract：:There is consensus that human herpesvirus 8 (HHV-8) is a necessary, albeit not sufficient, causal agent of Kaposi's sarcoma (KS). In the past several years, there have been rapid advances in our understanding of HHV-8 infection. In diagnosis, antibody detection is more sensitive than nucleic acid-based techniques. Whi...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/shem.2003.50013
更新日期：2003-04-01 00:00:00
abstract：:The rationale for modulation of multidrug resistance (MDR) by inhibitors of the multidrug transporter, P-glycoprotein (P-gp) includes the following: (1) P-gp is expressed by human cancers, either at diagnosis or after failure of chemotherapy; (2) P-gp expression at diagnosis has been associated with a poor prognosis i...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：
更新日期：1997-10-01 00:00:00
abstract：:Gene expression profiling of cancer began as a research tool but is rapidly moving towards clinical application. The diagnostic category of diffuse large B-cell lymphoma (DLBCL) can now be viewed as an amalgam of several different diseases that have distinct gene expression profiles, oncogenic mechanisms, and clinical...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1016/s0037-1963(03)00194-x
更新日期：2003-10-01 00:00:00
abstract：:Imatinib (Gleevec) (formerly STI571) is an orally bioavailable rationally developed inhibitor of the tyrosine kinases Bcr-Abl, Kit, and platelet-derived growth factor receptor (PDGFR). In 4 years of clinical development, more than 12,000 patients have been treated in the clinical development program. Imatinib was firs...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/shem.2003.50037
更新日期：2003-04-01 00:00:00
abstract：:Myelofibrosis with myeloid metaplasia, also known as idiopathic myelofibrosis (IF) or agnogenic myeloid metaplasia, is one of the characteristic manifestations of polycythemia vera (PV) in the spent phase, and has a particularly adverse prognosis. IF may also present de novo. To date, treatment strategies for both spe...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/shem.2003.50032
更新日期：2003-01-01 00:00:00
abstract：:The inhibitor titer is the most important clinical measurement in inhibitor patients, and the Nijmegen method is preferable to the original and well-established Bethesda assay for this purpose; however, both methods have high inter-laboratory variability. Monitoring inhibitor patients after treatment with bypassing ag...
journal_title：Seminars in hematology
pub_type： 杂志文章,评审
doi：10.1053/j.seminhematol.2008.03.002
更新日期：2008-04-01 00:00:00
