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)

The purposes of this prospective, repeated-measures descriptive pilot study were to describe patterns of acute oral pain and mucositis in patients receiving a bone marrow transplant or high-dose chemotherapy for leukemia, and to test procedures and instruments before initiating a larger intervention study. A nonprobability, purposive selection process was used to enroll 18 patients admitted to two acute care inpatient hospital units for bone marrow transplantation or leukemia therapy at a university health sciences center in the southeastern United States. Data were collected at baseline, then daily through patient interviews, oral examination, and chart review for at least 3 weeks or until discharge. Research variables were pain intensity, intolerable pain, verbal descriptors of pain, pain relief, and use of pain relief strategies (Pain Assessment Form), mucositis (erythema and ulceration) in eight anatomic locations of the oral cavity (Oral Mucositis Index), voice/talking (Oral Assessment Guide), and mood states (11-item Brief Profile of Mood States). Mild to moderate pain occurred in nearly 70% of patients and was described as "tender," "irritating," and "sore." Patients used pain medicines, mouth care, and mental and physical activities to relieve pain, and reported partial overall relief of pain. Mucositis was mild, with the tongue and buccal and labial mucosa most commonly affected with erythema and the buccal mucosa with ulceration. Voice/talking were only mildly impaired, and mood disturbance was mild. Patterns of pain, mucositis, and mood disturbance were consistent with each other and followed the trajectory described in previous research. Results suggest that nurses should continue to assess these symptoms vigorously and assist patients in selecting multiple management strategies. Research using repeated-measures designs in this acutely ill inpatient population is challenging and needs careful attention by researchers. The results have been used to improve the ongoing larger intervention study.
 ...
PMID:Acute oral pain and mucositis in bone marrow transplant and leukemia patients: data from a pilot study. 984 96

HuM195 is a recombinant humanized IgG1 monoclonal antibody reactive with CD33, a Mr 67,000 glycoprotein expressed on early myeloid progenitor cells and myeloid leukemia cells. HuM195 has been shown to rapidly target and saturate acute myeloid leukemia (AML) cells after i.v. infusion into patients and is capable of mediating antibody-dependent cellular cytotoxicity. This activity is enhanced in vitro when natural killer (NK) effector cells are preincubated with low concentrations of interleukin 2 (IL-2). Previous Phase I trials of HuM195 in patients with relapsed AML demonstrated safety and attainment of complete responses, but significant antileukemic activity appears limited to patients with low leukemia tumor burdens. Therefore, in the present trial, we sought to determine whether low-dose IL-2 could safely enhance the numbers of NK cells and therefore the cytotoxic capability of HuM195 via presumptive NK cell antibody-dependent cellular cytotoxicity in vivo against myeloid leukemia cells. Thirteen patients with relapsed or refractory AML and one patient with advanced myelodysplastic syndrome were treated with 0.6x10(6) IU/m2 of s.c. IL-2 daily for 35 days. Starting on day 15, patients received twice weekly i.v. infusions of HuM195 (3.0 mg/m2) for 3 weeks. Immediately after the HuM195 infusion, the patients received IL-2 i.v. infusions over 2 h at one of three escalating dose levels of 0.5x10(6), 1.0x10(6), and 2.0x10(6) IU/m2. Peripheral blood mononuclear cells were quantitated and immunophenotyped by flow cytometry. Safety, tolerability, bone marrow mononuclear cell morphology, and immunophenotype, as well as responses were assessed. Of the 14 patients who entered the study, 10 were able to complete at least one cycle of therapy. Adverse effects to the s.c. IL-2 were relatively mild and included erythema and induration of the skin at the injection site and low-grade fever. Toxicity from the sequential HuM195 and i.v. IL-2 infusions included nausea, rigors, and fever. Toxicity was IL-2 dose related with dose-limiting toxicity seen at the 2.0x10(6) IU/m2 dose level. Three patients had stable disease at the completion of the first cycle and went on to receive a second cycle of treatment. CD3-positive, CD56-positive, and CD33-positive cells were generally found to significantly decrease immediately after each administration of i.v. IL-2 and HuM195. CD56-expressing cells increased in 6 of 10 patients from the beginning to the end of therapy. Among the 10 evaluable patients, 2 patients had significant decreases in the percentage of blasts in the bone marrow (one of which achieved a complete bone marrow remission), 5 patients had stable levels of bone marrow blasts, and 3 had progression of disease on therapy. The combination of IL-2 and HuM195 shows modest biological activity and clinical antileukemic activity but also produced significant toxicity.
 ...
PMID:A phase I trial of humanized monoclonal antibody HuM195 (anti-CD33) with low-dose interleukin 2 in acute myelogenous leukemia. 1053 38

A polymerase chain reaction (PCR)-based strategy has been developed for analysis of clonal rearrangement of the T-cell receptor gamma gene (TCR gamma) and was shown to be useful for detection of clonal T-cell populations. In this study, we performed PCR combined with denaturing gradient gel electrophoresis (DGGE) on fresh frozen biopsy samples from 16 patients with cutaneous T-lymphoproliferative diseases in whom a definite diagnosis was difficult to make on morphological and immunohistochemical grounds alone. Ages of the patients at biopsy ranged from 28 to 81 (median 62) years, and the subjects consisted of 8 men and 8 women. They presented with erythema on the extremities in 5 cases, trunk in 7, buttock in 2, and papules on the trunk and face in one case each. Clonal rearrangement of TCR gamma was observed in 3 of 16 cases. Clinical diagnoses of these three cases were mycosis fungoides, cutaneous invasion of adult T-cell leukemia (ATL), and large granular lymphocytic leukemia (LGL) of T-cell type, respectively, but they were histologically difficult to differentiate from reactive cutaneous T-cell proliferation. The skin lesions of the LGL case worsened, and this patient died two years after biopsy. Another patient with suspected mycosis fungoides in the plaque stage died due to dissemination of tumors 22 months after biopsy. The remaining one patient with ATL survived with cutaneous lesions for over four years. Clonality was not demonstrated in the remaining 13 cases, and their clinical courses were favorable. These findings showed that demonstration of clonal TCR gamma gene rearrangement using the PCR-DGGE method is very helpful for diagnosis of cutaneous T-cell neoplasms.
 ...
PMID:Analysis of T-cell antigen receptor gamma chain gene rearrangement by polymerase chain reaction in combination with denaturing gradient gel electrophoresis in the differential diagnosis of cutaneous T-lymphoproliferative diseases. 1082 87

The relationship between exposure to electromagnetic fields (EMFs) and human health is more and more in focus. This is mainly because of the rapid increasing use of such EMFs within our modern society. Exposure to EMFs has been linked to different cancer forms, e.g. leukemia, brain tumors, neurological diseases, such as Alzheimer's disease, asthma and allergy, and recently to the phenomena of 'electrosupersensitivity' and 'screen dermatitis'. There is an increasing number of reports about cutaneous problems as well as symptoms from internal organs, such as the heart, in people exposed to video display terminals (VDTs). These people suffer from subjective and objective skin and mucosa-related symptoms, such as itch, heat sensation, pain, erythema, papules and pustules. In severe cases, people can not, for instance, use VDTs or artificial light at all, or be close to mobile telephones. Mast cells (MCs), when activated, release a spectrum of mediators, among them histamine, which is involved in a variety of biological effects with clinical relevance, e.g. allergic hypersensitivity, itch, edema, local erythema and many types of dermatoses. From the results of recent studies, it is clear that EMFs affect the MC, and also the dendritic cell, population and may degranulate these cells. The release of inflammatory substances, such as histamine, from MCs in the skin results in a local erythema, edema and sensation of itch and pain, and the release of somatostatin from the dendritic cells may give rise to subjective sensations of on-going inflammation and sensitivity to ordinary light. These are, as mentioned, the common symptoms reported from patients suffering from 'electrosupersensitivity'/'screen dermatitis'. MCs are also present in the heart tissue and their localization is of particular relevance to their function. Data from studies made on interactions of EMFs with the cardiac function have demonstrated that highly interesting changes are present in the heart after exposure to EMFs. One could speculate that the cardiac MCs are responsible for these changes due to degranulation after exposure to EMFs. However, it is still not known how, and through which mechanisms, all these different cells are affected by EMFs. In this article, we present a theoretical model, based upon observations on EMFs and their cellular effects, to explain the proclaimed sensitivity to electric and/or magnetic fields in humans.
 ...
PMID:A theoretical model based upon mast cells and histamine to explain the recently proclaimed sensitivity to electric and/or magnetic fields in humans. 1085 62

A 57-year-old woman was admitted to our hospital with suspected leukemia in September 1999. In 1990, systemic erythema had occurred, and mycosis fungoides (MF) had been diagnosed by skin biopsy. Interferon-gamma therapy had not been effective, and the erythema had disappeared after treatment with psoralen and ultraviolet A (PUVA) therapy (1.46 J/cm2). The patient had subsequently done well with a course of topical steroids. On admission this time, the WBC count was 1,600/microliter with 6% blasts. The total nucleated cell count in a bone marrow aspirate was 43.1 x 10(4)/microliter, of which 86.2% were peroxidase-positive blasts. Acute myelocytic leukemia (AML) was diagnosed. Chromosomal analysis demonstrated abnormalities of 48, XX, +4, +8, +add(10)(p11), add(11)(q23) in 10 of 20 cells, and 51, idem, +6, +8, +21, +mar in 8 cells with mixed-lineage leukemia gene rearrangement. Therapies (radiation, chemotherapy and PUVA) for MF, and the altered immune response seen in patients with this disease, especially in the more advanced stages, collectively termed cutaneous T-cell lymphoma (CTCL), suggest that such patients may be at increased risk of a second primary malignancy. To our knowledge, AML has been reported in 8 MF patients including the present one. Attention should be given to the possibility of MF terminating in AML.
 ...
PMID:[Mycosis fungoides terminating in acute myelocytic leukemia]. 1107 Sep 39

Paraneoplastic pemphigus (PNP) is an autoimmune blistering and erosive mucocutaneous disease associated with neoplasia. Clinical manifestations are polymorphous, and include erythema, bullae, erythema multiforme-like lesions and severe mucous membrane involvement. PNP manifesting as lichenoid dermatitis has recently been observed. We describe two Italian men with fatal PNP featuring typical PNP autoantigens associated with chronic B-cell lymphocytic leukaemia. The first patient presented with an extensive blistering eruption, several erythema multiforme-like lesions and severe mucosal involvement. The second patient presented with a lichenoid dermatitis, then developed bullae, and died with an erythrodermic and exfoliative dermatosis resembling pemphigus foliaceus. Our patients represent two Italian cases of well-documented PNP. In patient 2, the sequence of clinical presentations was unique, and strongly supports the hypothesis of epitope spreading through chronic lichenoid inflammation of the dermo-epidermal junction exposing new self antigens, leading to the humoral response characteristic of PNP.
 ...
PMID:Paraneoplastic pemphigus. A report of two cases associated with chronic B-cell lymphocytic leukaemia. 1145 21

Radiation protection standards for the individual exposed to ionizing radiation in his/her daily work have evolved over more than 50 years since the first recommendations on limits by the NCRP and the ICRP. Initial standards were based on the absence of observable harm, notably skin erythema, but have since been modified as other concerns, such as leukemia and genetic effects, became more important. More recently, the general carcinogenic effect of radiation has become the principal concern at low doses. Genetic effects are also of concern in the younger individual. Modern radiation protection practices take both of these risks into account. Quantification of these risks improves as new information emerges. The study of the Japanese survivors of the atomic bombs continues to yield new information and the recent revisions in the dosimetry are about to be completed. The special circumstances of space travel suggest approaches to limits not unlike those for radiation workers on the ground. One approach is to derive a career limit based on the risks of accident faced by many nonradiation workers in a lifetime. The career limit can be apportioned according to the type of mission. The NCRP is considering this and other approaches to the specification of radiation standards in space.
 ...
PMID:Radiation protection standards in space. 1153 42

A four-year-old male neutered domestic shorthaired cat developed bilateral thickening of the pinnae, with slight curling, intense erythema and pain. No ear canal disease was present. The cat was negative for feline immunodeficiency virus, feline leukaemia virus and feline coronavirus. Biopsy of the ear lesion revealed auricular chondritis. In humans, histologically similar lesions may involve the pinnae, nose, trachea, joints, eyes and heart, and the disease is termed relapsing polychondritis. The cat reported had a history of corneal damage, resulting in corneal vascularisation and opacity, eyelid distortion, necessitating an entropion operation, and radiological evidence of mild cardiac enlargement. The ear disease responded rapidly to treatment with prednisolone and, apart from slight thickening and curling of the pinnae, the cat remained normal and pain-free. After two years, the prednisolone was withdrawn, and there was no recurrence of the condition in a follow-up period of 14 months.
 ...
PMID:Auricular chondritis in a cat. 1168 26

Acute basophilic leukemia has recently been included into a revised classification of acute leukemias proposed by the WHO panel. Due to the rarity of the disease, consistent diagnostic criteria are lacking. We report on two cases of acute basophilic leukemia that occurred in our department during the last 10 yr. We focus on their clinical, morphological and cytogenetic presentation. Both patients were >60 yr of age, and presented in good clinical condition with alterations to their full blood count. None had cutaneous symptoms such as erythema or urticaria. Cytogenetic analyses in the first patient showed a normal karyotype, while the second displayed a translocation t(2;6); (q23?4;p22?3), as well as a del (12)(p11). Earlier observations have linked bone marrow basophilia either to a deletion of the short arm of chromosome 12 (p11-13), to translocations involving the long arm of chomosome 6 at 6q23 or to the translocation t(6,9); (p23;q34). However, other translocations involving chromosome 6p23 have not been described before. Treatment of our patients consisted of supportive treatment in the one with normal karyotype and aggressive chemotherapy in the other patient. Both patients died within one year after diagnosis due to progressive or recurrent leukemia.
 ...
PMID:Acute basophilic leukemia. 1172 93

Palmar-plantar erythrodysaesthesia (PPE) is an uncommon cutaneous complication of cytotoxic chemotherapy which generally presents as a painful erythema involving the palms and soles. It has been suggested that PPE caused by cytarabine does not recur with subsequent cytarabine re-challenge. We report a patient with recurrent, increasingly severe episodes of PPE, ultimately complicated by a severe bullous eruption, following successive cycles of high-dose cytarabine for the treatment of acute lymphoblastic leukaemia. Contrary to previous recommendations, our experience cautions against the further use of high-dose cytarabine in patients who develop PPE, and is a timely reminder of the potential toxicity of this agent, which is now increasingly being used as first-line treatment in the management of haematologic malignancies.
 ...
PMID:Recurrent palmar-plantar erythrodysaesthesia following high-dose cytarabine treatment for acute lymphoblastic leukemia. 1246 Feb 37


<< Previous 1 2 3 4 5 6 7 8 Next >>