Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0024312 (lymphopenia)
 4,859 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

T- and B-cells were examined in 56 patients with acute mountain sickness exposed to 3600 m above sea level. They showed T- and B-lymphopenia, decreased PHA- and Con A-induced blast formation from T-cells, reduced content of T mu cells and increased content of T gamma and 0 cells. These changes persisted for as long as 5 months. It was demonstrated that individuals susceptible to acute mountain sickness had a lower level of E-RFC and T mu cells and a higher level of 0 cells. These characteristics seen in the baseline produced a negative effect on the adaptation process.
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PMID:[Immunologic status of patients with acute altitude sickness]. 262 80

18 patients with progressive systemic sclerosis were investigated. An absolute lymphopenia and a decrease in the number of E-rosettes and early E-rosette forming cells were found. The number of T gamma cells was reduced as compared to the control values. No diminution was found in the number of histamine receptor bearing cells but the number of T lymphocytes capable of recognizing autologous red blood cells was considerably decreased. The number and the ratio of these T cell subpopulations remained relatively stable even after 6 months in the patients with progressive systemic sclerosis. No individual correlation was found between the clinical findings and the ratio of T cell subpopulations.
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PMID:Lymphocyte markers in patients with progressive systemic sclerosis. 293 12

The distribution of T-lymphocyte subpopulations was studied in 34 patients with primary or secondary syphilis before and after treatment. An absolute and relative T lymphopenia was found in all patients. In primary syphilis the concentration of helper cells--T cells with Fc receptors for IgM (T mu)--was low whereas in secondary syphilis the suppressor cell concentration--T cells with Fc receptors for IgG (T gamma)--was reduced. Using lymphocytes from healthy subjects this could be imitated in vitro by the addition of serum from patients with secondary syphilis. In many autoimmune diseases a low concentration of T gamma may be a primary factor in the production of autoantibodies. The occurrence of similar changes in patients with secondary syphilis, however, indicates that such fluctuations in the T-cell subpopulations may take place during a strong immune response.
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PMID:Alterations in T lymphocytes and T-lymphocyte subpopulations in patients with syphilis. 645 15

The percentage and the absolute numbers of T lymphocytes Fc receptors for IgG and IgM (T gamma and T mu lymphocytes, respectively) were evaluated in fourteen patients with active sarcoidosis and in a group of controls. A marked increase in the percentage of T gamma cells and a net decrease of T mu cells were found. Although sarcoidosis patients present a T lymphopenia, the absolute number of T gamma lymphocytes was still increased whereas the T mu decrease was even more pronounced. The possible causes of this imbalance in view of the recent interpretations of T suppressor and T helper lymphocytes are discussed.
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PMID:Imbalance in T gamma and T mu lymphocyte subpopulations in patients with sarcoidosis. 696 13

Subpopulations of peripheral blood T lymphocytes (T gamma and T mu) were investigated in 36 patients with chronic liver disease. T lymphocytes decreased in percentage in all patients, except in those with chronic persistent hepatitis. In contrast, the absolute numbers did not differ from those of controls, except in patients with cirrhosis, who showed decreased values for circulating T cells. The absolute and percentage values of T gamma were increased in patients with CAH and cirrhosis but not in patients with CPH. All groups of patients with CLD showed a decrease in the absolute and percentage numbers of T mu, but patients with CPH showed absolute values similar to those of the controls. The role of this imbalance in the T cell subsets in CALD is briefly discussed.
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PMID:Subpopulations of T lymphocytes in patients with chronic active liver disease. 698

The immune reactivity of 25 patients with mycosis fungoides was studied twice with a 6 month interval using a panel of T lymphocyte surface markers and functional tests. Patients with clinically inactive disease (stage I + II) had normal T lymphocyte biology. Patients with clinically active disease (stage II-IV) had T lymphopenia, alterations in T cell subpopulations (T gamma and T mu) and a reduced lymphocyte reactivity in vitro following mitogen (PHA, Con A, PWM) and antigen (PPD) stimulation. They also had a reduced secretion of immunoglobulin in vitro after PWM stimulation, apparently due to the alterations in their T lymphocyte subpopulations. The observed changes in the peripheral blood T lymphocyte population and the in vitro function of lymphocytes were not shared by lymphocytes from histologically affected lymph nodes. The natural killer cell activity in blood lymphocytes was found to be normal in all patients.
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PMID:The immunological profile of mycosis fungoides. 698 38