Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0011570 (depression)
 172,036 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Comparison between 157 children treated with defibrinated convalescent plasma and 257 children treated with specific immunoglobulins revealed the improved effectiveness of the latter treatment in the prevention of chickenpox. Specific Herpes Zoster-Chickenpox immunoglobulins are prepared by caprylic acid fractionation of convalescent plasma. The prevention obtained in more than 90% of cases would appear to be clinically and biologically total as shown by serological surveillance of certain children with particularly severe immune depression.
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PMID:[The prevention of chickenpox in high risk children. Comparison of the effectiveness of specific immunoglobulins and of defibrinated convalescent plasma. 414 cases (author's transl)]. 22 85

Fifteen patients with chronic hepatitis B were treated with adenine arabinoside (Ara-A) or human leukocyte interferon (HLI). Cellular immune response to hepatitis B virus surface antigen and antigens prepared from herpes simplex virus, varicella zoster virus, and cytomegalovirus was measured by a lymphocyte blast transformation assay and an assay for interferon production. Measurements were made before, during, and after antiviral treatment. Unlike patients convalescing from acute hepatitis B, only 2 of 15 patients with chronic hepatitis B had significant blast transformation to hepatitis B surface antigen. One such response occurred during the pretreatment period of HLI therapy, and the other was in a patient undergoing low-dose (<10(5) U/kg per day) HLI therapy. Mononuclear cell cultures were tested for interferon production in the presence of hepatitis B surface antigen. Cells from only 1 of 15 patients produced detectable levels of interferon. In contrast, all of these patients had normal cellular immune responses to herpesvirus antigens. Transformation responses to herpes antigens decreased three- to fivefold after patients were treated with >10(5) U of HLI per kg per day. Antiviral therapy with <10(5) U of HLI per kg per day or Ara-A did not produce a detectable depression of transformation response. Ara-A produced marked lymphocytopenia and a marked lymphocyte fragility after 5 or more days of therapy. In vitro Ara-A was toxic to lymphocytes at concentrations as low as 0.5 mug/ml. These changes in lymphocyte parameters may affect the outcome of antiviral therapy.
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PMID:Effects of interferon and adenine arabinoside treatment of hepatitis B virus infection on cellular immune responses. 53 59

The present report outlines the clinical features of a 2-year-old boy who following varicella developed purpura of the lower extremities, transient gastrointestinal bleeding and glomerulonephritis. The triad of symptoms suggests Schonlein-Henoch Syndrome, but coagulation studies and renal biopsy did not confirm this, and varicella is thought to be the cause of the complications. Therapy with corticosteroids and azathioprine had only a minor effect on the nephritis but caused depression of serum IgG and specific antibody resulting in reinfection or reactivation of varicella.
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PMID:Varicella followed by glomerulonephritis. Treatment with corticosteroids and azathioprine resulting in recurrence of varicella. 108 27

In vitro lymphocyte blastogenic responses to the commonly employed mitogens, phytohemagglutinin, pokeweed, and concanavalin A, were evaluated when adenine arabinoside (ara-A) in a concentration of 3 mug/ml was added to the culture materials. Similarly, blastogenic and cytotoxic responses to cell cultures persistently infected with herpes simplex virus 1, herpes simplex virus 2, and varicella-zoster virus were determined in the presence of ara-A. No depression of these cellular immune responses by ara-A was demonstrated. This was in contrast to the effect of cytosine arabinoside, which at a concentration of 3 mug/ml severely inhibited these immune responses. Further studies examined lymphocyte blastogenic responses to the mitogens and blastogenic and cytotoxic responses specific for the herpes group virus infecting patients who were subsequently treated with ara-A; determinations were made before, during, and after treatment. In vitro responses during and after treatment with ara-A were unchanged or often enhanced as compared to pretreatment values. Therefore, the antiviral chemotherapeutic agent, ara-A, does not appear to depress the host's cellular immune responses, which are vital to successful elimination of invading herpes group viruses.
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PMID:Effects of adenine arabinoside on cellular immune mechanisms in humans. 113 71

The chronic fatigue syndrome is a poorly defined symptoms complex characterized primarily by chronic or recurrent debilitating fatigue and various combinations of other symptoms, including psychological symptoms, sore throat, lymph node pain, headache, myalgia, arthralgias. Psychological disturbances, ranging from mild depression or anxiety to severe behavioral abnormalities, are always present. Chronic fatigue syndrome is the name that more accurately describes this symptom complex of unknown cause. A viral aetiology has long been hypothesized: many viruses are potential candidates, including any of the 23 Coxsackie A or 6 Coxsackie B viruses, herpes viruses, particularly Epstein-Barr virus and varicella. These studies, though interesting, remain unconvincing because of methodological flaws such as a poor case definition and inadequate control groups. This syndrome may represent an infection by a yet unidentified virus. It is more likely due to an abnormal immune response toward different intracellular pathogens. There is no treatment to ameliorate the chronic fatigue syndrome. Epidemiological studies are essential with explicit operational case definition before progress can be made in the management of this distressing disorder.
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PMID:[The chronic fatigue syndrome. A multifactorial approach and the treatment possibilities]. 207 78

The effects of nutritional manipulation on immune function have been extensively studied in animals, but few studies have examined dietary restriction in humans. Obese patients enrolled in a protein-sparing, calorically restricted diet were monitored over a 3-month period with in vitro examination of mitogen- and antigen-induced lymphocyte blastogenesis. The sera from these patients were evaluated for effects on neutrophil chemotaxis, phagocytosis and microbial killing. Significant changes in body weight, triglycerides and glucose occurred during the diet, and most patients exhibited urinary ketosis. The diet was associated with increased blastogenesis in unstimulated cultures and in varicella and candida antigen-stimulated cultures, but blastogenesis was unchanged for phytohemagglutinin, concanavalin A, SK-SD and histoplasma. In assays of serum effects on neutrophil function, patients with urinary ketosis had depression of chemotaxis and microbial killing but not phagocytosis when compared to baseline or nonketotic patients. This study indicates that long-term caloric restriction is associated with significant effects on in vitro lymphocyte stimulation and with significant serum effects on normal neutrophil function.
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PMID:Effect of prolonged modified fasting in obese persons on in vitro markers of immunity: lymphocyte function and serum effects on normal neutrophils. 235 51

We sought to identify imbalances of immune regulatory cells that might contribute to the depression of cell-mediated immunity that occurs during an episode of herpes zoster. Peripheral blood mononuclear cells (PBMC) were obtained from patients with herpes zoster during the acute (less than 7 days after disease onset) and convalescent (more than 10 days after disease onset) phases of illness and from healthy seropositive donors. The PBMC were analyzed for: lymphoproliferative responses to varicella-zoster virus (VZV) antigens, Leu-3 (helper/inducer):Leu-2 (cytotoxic/suppressor) ratios, and percentages of suppressor cells as defined by coexpression of the Leu-2 and OKM1 antigens. Significantly depressed proliferative responses of VZV antigens and Leu-3:Leu-2 ratios, and increased percentages of Leu-2+ OKM1+ suppressor cells were observed in PBMC of acute phase herpes zoster patients as compared with the PBMC of convalescent patients or healthy donors. These differences were also observed in individual patients sequentially studied during both phases of disease. Cryopreserved acute phase PBMC suppressed the proliferative response of autologous convalescent phase PBMC to VZV antigens, but not to herpes simplex virus (HSV) antigens. The acute phase PBMC suppressor cell was radiation sensitive and was identified as a Leu-2+ cell by fluorescence-activated cell sorting. Thus, depression of cell-mediated immunity during the acute phase of herpes zoster was associated with a relative increase of lymphocytes expressing a suppressor cell phenotype and the activation of a radiosensitive Leu-2+ suppressor cell with some degree of antigen specificity.
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PMID:Analysis of immune function in herpes zoster patients: demonstration and characterization of suppressor cells. 302 75

Herpes zoster is uncommon in normal children in the 0-9 year age group. However, its incidence is markedly increased in those who are immunosuppressed. Six Papua New Guinean children under 9 years of age developed herpes zoster following an episode of malaria, due to Plasmodium falciparum or Plasmodium vivax which was treated with chloroquine. The reactivation of the varicella-zoster virus in these patients may reflect transient depression of cell-mediated immunity by these malaria parasites, possibly augmented by the chloroquine used in their treatment.
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PMID:Herpes zoster in children following malaria. 391 Aug 48

Polymorphonuclear leucocytes function--Gey mobility, chemotaxis, NBT and myeloperoxidases--was studied in 29 patients with active viral infection and after clinic recuperation: 19 mumps meningitis, five measles, three varicella, one adenovirosis and one hepatitis A; these patients were compared with 31 age matched controls. Gey mobility and chemotaxis was markedly depressed during the acute period (p [0.05 and p less than 0.001 respectively), returning to normal values with clearing of infection. Also, myeloperoxidase decreases during acute period (p less than 0.05), but they don't return to normal values with clinic recuperation (p less than 0.05). NBT was similar in both groups. Studying mumps meningitis alone authors observed that results were similar to before: chemotaxis deficit (p less than 0.05) and myeloperoxidases (p less than 0,01). According to these results depression of polymorphonuclear function justifies only partially the higher predisposition to bacterial superinfection that some viral infections have.
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PMID:[Reduction of the function of polymorphonucleocytes: chemotaxis and myeloperoxidases in viral infections in childhood]. 609 60

The influence of herpes zoster virus infection on cell-mediated and humoral immunity to varicella-zoster virus (VZV), cytomegalovirus, and herpes simplex virus (HSV) was followed in 17 zoster patients from the first week to 6 months after start of eruptions. The clinical responses were registered and correlated to the immune responses. A significant depression in blast transformation on stimulation of lymphocytes with all three antigens was found on days 1 to 5 compared with transformations later after zoster eruptions and compared with controls. Phytohemagglutinin exhibited the same stimulation in the different groups and controls. No significant differences in interferon production in the various groups and controls were found on stimulation with the VZV and HSV antigens. All zoster patients became seropositive by complement fixation to VZV a few days after start of the zoster eruption. Two zoster patients showed a fourfold rise in complement fixation antibodies to HSV. Three patients had changes in complement fixation titers to cytomegalovirus, which could indicate new infection or reactivation of infection with this virus. A significant lower transformation index to VZV was found during the first 9 days in zoster patients with fever compared with patients without fever. The relevance of this observation is discussed in relation to a previous similar observation from our group.
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PMID:Cell-mediated and humoral immunity to herpesviruses during and after herpes zoster infections. 616 9


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