Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0023418 (leukemia)
 93,477 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A number of newly-developed vaccines are available nowadays, whilst others, which are well-established, have been improved. The collection of epidemiological data, however, is equally important in assessing and providing insight into prophylactic measures. The beneficial effects and risks of vaccination may be calculated by special formulae. Changes in the effect of vaccines can be detected by constant reevaluation of the epidemiological situation by means of these formulae. Another possibility lies in the calculation of the borderline number of complications of a certain disease when the risks of the sequelae of the disease or of the vaccination are about equal. Examples of valuable and recommendable vaccinations are vaccination against measles, poliomyelitis, tetanus and tick-borne encephalitis. A follow-up of the case mortality of whooping-cough in Austria over the past 15 years and a consideration of the fatal complications of vacinnation, as quoted by Ehrengut, reveals that the risks of the disease balanced the risks of vaccination with usual vaccines, already in 1971 (1976 with WHO data). A beneficial effect of BCG vaccination is still present, but the influence on mortality figures is very slight only. However, the benefit of BCG may lie in the prevention of deaths from leukaemia observed by some authors. Paraspecific effects of some vaccinations are mentioned. Finally, cost-benefit calculations for Austria are presented in the case of vaccination against measles and mumps, which appear to be highly recommendable, not only from the medical, but also the economic point of view.
 ...
PMID:[Modern trends in vaccination policy: evaluation of benefits, risks and cost (author's transl)]. 10 58

Exudation of eosinophil polymorphonuclear leukocytes (E-PMN) in response to tetanus toxoid (TT) was studied in DBA/2HaD mice with erythroleukemia induced by Friend virus (FV). The inhibition of exudation that developed was independent of increased levels of serum corticosteroids and occurred in surgically adrenalectomized mice. Thus it was independent of steroid-induced effects on E-PMN. The accumulation of neutrophil polymorphonuclear leukocytes (N-PMN) in TT-induced exudates was unaltered. Furthermore, N-PMN exudation in response to other inflammatory stimuli was similarly unimpaired in virus-infected mice, which confirmed the specificity of the inhibition for E-PMN. The virus entity in the FV complex responsible for the effect was not identified. Friend murine leukemia virus, the indigenous helper virus for the defective spleen focus-forming virus, alone, was incapable of inducing the inhibition. It is possible that the lack of participation of E-PMN in TT-induced immune inflammatory exudates in FV-infected mice reflects an unresponsiveness that contributes to the development and progression of leukemia in FV-infected mice.
 ...
PMID:Friend virus-induced inhibition of eosinophil granulocyte exudation in mice. 63 89

Seventeen children of 2-15 years of age with newly diagnosed untreated acute lymphatic leukaemia (ALL) were evaluated with a number of immunological tests: for humoral immunity serum immunoglobulins and reactive antibody formation against three antigens (diphtheria, tetanus, KLH); for cell-mediated immunity in vitro response of blood lymphocytes against PHA; membrane characteristics of blood lymphocytes and lymphoid blasts for both B and T cells. The tests were repeated in thirteen patients who attained full remission. In the majority (twelve cases) no surface markers were detected (null-cell leukaemia), one patient fulfilled the criteria for a T-cell leukaemia with thymoma. Four patients had rather high absolute B-cell counts, but did not fulfill all the criteria for B-cell leukaemia; three of them died before remission. Immune globulin concentrations were only slightly changed, antibody formation, both primary and anamnestic, was possible. PHA response was extremely low in the initial phase, but normal immediately after remission. During remission all patients were markedly depleted in both their B- and T-cell compartment.
 ...
PMID:Studies on the immune status of children with acute lymphocytic leukaemia. I. Early phase before and after first remission. 108 93

Transfer of specific immunity was investigated in a group of 28 paediatric and adult leukaemia patients during the first 100 d after allogeneic bone marrow transplantation (BMT). These patients and/or their donors were immunized 7-13 d before transplantation with the recall antigen tetanus toxoid (TT) and the neo-antigen Helix pomatia haemocyanin (HPH). The recipients were booster immunized with both antigens at day 42 after transplantation. Transfer of a primary IgM and IgG response to HPH was successful in most paediatric and adult patients, but transfer of a secondary response to TT was established in only a few paediatric recipients. After booster immunization at day 42 most paediatric recipients responded with a rise in serum antibody titre to HPH as opposed to only two of 18 adult recipients. This incapability of the adult recipients to mount a secondary immune response may be related to their conditioning regimen which included Campath-IG in vivo. The results from this study indicate that transfer of immunity against recall- and neo-antigens is possible. However, the establishment of long-term memory may be affected by the regimen used to condition the graft recipient.
 ...
PMID:Transfer of specific immunity from donor to recipient of an allogeneic bone marrow graft: effect of conditioning on the specific immune response of the graft recipient. 158 Dec 19

To focus attention on the problem of infant mortality in Lebanon, data were compiled on infant mortality from 1978 to 1986 at the American University of Beirut Medical Center. Causes of death are analyzed for 602 males and 398 females. 54.9% deaths occurred at 1 month of age and 77.4% died within the 1st year. Autopsies were performed on .7%. 37.7% of all neonatal deaths were due to neonatal diseases such as hyaline membrane disease, asphyxia neonatorum, immaturity, necrotizing enterocolitis, hemorrhage, hemolysis, meconium aspiration, and kernicterus. Better prenatal care would reduce this group, or the administration of corticosteroids to the mother 24-48 hours prior to delivery, as well as rapid resuscitation at birth and prevention of the 5 curses: hypoxemia, hypoglycemia, hypothermia, hypotension, and acidosis. Although unavailable in Lebanon, administration of surfactants through an endotracheal tube would also help. Infections constitute 25.1% of deaths; many are preventable through adequate public health measures and strict personal hygiene, i.e., diseases such as sepsis, pneumonia, meningitis, gastroenteritis, hepatitis, encephalitis, and 1-2 cases of the following: diphtheria, measles, peritonitis, tetanus, tuberculosis, cytomegalis inclusion, herpes, parathyphoid, pertussis, poliomyelitis, and shigellosis. Congenital diseases were 21.6%. In utero diagnosis could prevent some diseases and in utero treatment is possible for hydrocephalus and hydronephrosis. Screening programs postnatally could lead to treatment. 5.9% were malignancies such as leukemia, lymphoma, brain tumors, histocytosis, Wilm's tumor, Ewing sarcoma, and Hodgkin's disease. Early diagnosis is critical if mortality is to be reduced in this group, but medical advances are still needed. 2.9% are miscellaneous diseases such as poisoning, rheumatic diseases, marasmus, Reye's syndrome, nephrosis, rickets, and epilepsy. Most of these diseases are preventable, except for rheumatic inflammation of the heart. Recommended necessary steps to reduce infant mortality are: prenatal care, diagnosis and screening, intrauterine surgery; resuscitation and intensive care centers with modern equipment and trained personnel; national vaccination and screening programs; adequate public health measures and hygiene; parental education; and well-equipped hospitals to serve all regardless of income level.
 ...
PMID:Pediatric mortality: an avoidable tragedy. 251 28

Tetanus toxin (TT) was used as a diagnostic marker for human neuroblastoma (NB) cells. TT binding sites visualized by TT and FITC-conjugated anti-TT antibodies were present on NB cells from all 13 cases studied comprising Stages II, III, IV, IVS and histologic grades 1 through 3. NB cells from both bone marrow aspirates and tumor biopsies as well as cultured NB cells were TT-positive. Diagnosis of NB was further ascertained by electron microscopy, cell culture, and quantitative determinations of catecholamines in tumor material. Only electron microscopic diagnoses had an accuracy comparable to that of TT labeling. None of the non-NB tumors (Ewing's sarcoma, acute lymphatic and myeloic leukemia, acute monocyte leukemia, chronic myeloic leukemia, Hodgkin's disease, oat cell carcinoma of the lung, pheochromocytoma), except for the pheochromocytoma, were found to bind TT specifically. These results suggest that TT may be profitably employed as a diagnostic marker of human NB cells. The advantages of the methods are its high discriminative capacity against non-NB cells and rapid applicability.
 ...
PMID:Tetanus toxin labeling as a novel rapid and highly specific tool in human neuroblastoma differential diagnosis. 400 7

In attempts to determine whether, by analogy to cholera and tetanus toxins, diphtheria toxin (DT) can also relieve the antiviral effect of interferon (IF), we found that it rather enhanced the inhibitory effect of IF on the replication of murine leukemia virus in chronically infected NIH/3T3 cells. This enhancement was found to be a consequence of an increased sensitivity to DT of cellular protein synthesis in IF-treated cells. IF stimulated the anti-protein synthesis activity of DT in both mouse cells that are known to be highly resistant to this toxin and in human HeLa cells that are highly sensitive to this toxin. This stimulation was dependent on IF dose. The effect of IF on DT action was strictly species specific, indicating that it was not a consequence of the mere binding of IF to the cell membrane, but rather reflected the cellular changes that followed this initial binding. IF was found to be capable of potentiating intact DT, but could not potentiate its fragments in any combination. IF did not have any effect on the in vitro nicotinamide adenine dinucleotide glycohydrolase activity of DT, suggesting that the effect of IF is not due to molecular modification of the toxin.
 ...
PMID:Enhancement of cellular protein synthesis sensitivity to diphtheria toxin by interferon. 615 43

Tetanus-toxoid specific helper-inducer T-cell clones, which had been infected and transformed by human T-cell leukemia-lymphoma virus (HTLV-I), were obtained from an antigen-specific human T cell line by using a limiting dilution technique in the presence of the virus. These HTLV-I-infected T-cell clones proliferated specifically in response to soluble tetanus toxoid but, unlike normal T cells, they could do so in the absence of accessory cells. The HTLV-I-infected T-cell clones did not present the antigen to autologous antigen-specific T cells that were not infected with HTLV-I. The capacity of helper-inducer T cells to retain antigen-specific reactivity after infection by HTLV-I, while losing the normal T-cell requirement for accessory cells, has clinical and theoretical implications.
 ...
PMID:Functional properties of antigen-specific T cells infected by human T-cell leukemia-lymphoma virus (HTLV-I). 620 69

The effect on L1210 leukemia in mice of immunostimulation, in combination or not with chemotherapy with either daunorubicin or mitomycin, was studied. Immunostimulation with the immunomodulator P40 isolated from C. granulosum, together with xenogenized syngeneic tumor cells (GA-L1210-Tet: L1210 tumor cells inactivated with glutaraldehyde and coupled with tetanus toxoid), on days -14 and -7 before and days 2 and 9 after tumor inoculation, resulted in significant increase of the mean survival time as compared to control group with or without chemotherapy. Administration of P40 or P40 + GA-L1210-Tet cells, before or before and after inoculation of L1210 cells partly inactivated in vitro with antineoplastic agents, leads to a marked prolongation of mean survival time and to inhibition of ascitic tumor growth in a high percentage of mice. About 50% of the mice treated with P40 + GA-L1210-Tet cells and surviving the first challenge were resistant to rechallenge, providing that P40 + cells were reinjected before the second challenge, whereas all mice treated with P40 alone and surviving the first inoculation, were susceptible to rechallenge. The major conclusion is that treatments of combining chemotherapy, active immunization and nonspecific immunostimulation in the applied sequence are more effective than single treatments for control of L1210 mouse leukemia.
 ...
PMID:Prevention and treatment of L1210 mouse leukemia by immunization with xenogenized tumor cells combined with immunostimulation by the P40 fraction of C. granulosum and chemotherapy. 650 Jul 82

Administration of glutaraldehyde treated L1210 leukemia cells, either alone or coupled with tetanus toxoid by means of glutaraldehyde as well as L1210 cells inactivated by mitomycin, did not induce appreciable protection against a tumorigenic dose of L1210 cells. On the other hand, injection of P40 fraction of C. granulosum induced non-specific resistance to L1210 leukemia and increased the efficiency of specific immunization by either glutaraldehyde treated L1210 cells or cells coupled with tetanus toxoid. Injection of Freund's complete adjuvant resulted in increase of rate of mortality after challenge with L1210 cells.
 ...
PMID:[Protective effect of P40 fraction of C. granulosum against leukemia L1210 in mice]. 679 1


1 2 3 4 Next >>