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  • 1995-1999  (2)
  • Key words: IL-4 — IL-10 — Peritoneal macrophage — Nitric oxide (NO)  (1)
  • personality traits  (1)
  • 1
    ISSN: 1420-908X
    Keywords: Key words: IL-4 — IL-10 — Peritoneal macrophage — Nitric oxide (NO)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Objective: To study the effect of interleukin (IL)-4 and IL-10 on nitric oxide (NO) production by macrophages.¶Materials and Methods: Elicited or resident peritoneal macrophages (PMO) and a macrophage cell line Raw264.7 were primed by IL-4 or IL-10 for 6 hours, and were further incubated in the presence of interferon (IFN)-γ and/or lipopolysaccharide (LPS) for 48 hours. NO2 - accumulation in the supernatant of cultured cells was used as an indicator of NO production and was determined by the standard Griess reaction adapted for microplates. The amount of tumor necrosis factor (TNF)-α in the culture supernatants was determined with a commercially available ELISA kit. The absorbance was measured at 450 nm with a microplate photometer.¶Results: IL-4 inhibited NO production by murine macrophages of different sources and the macrophage cell line Raw264.7. In contrast, different macrophage populations showed differential responses to IL-10. After stimulation with LPS or IFN-γ, IL-10 suppressed NO production by elicited PMO but enhanced NO production by resident PMO or by Raw264.7. Both IL-4 and IL-10 inhibited the production of TNF-α, which has been shown to play a crucial role in NO production. In the presence or the absence of blocking antibody to TNF-α, IL-10 always enhanced NO production by resident PMO. This result suggests that the inhibition of TNF-α production and the enhancement of NO production by resident PMO stimulated with IL-10 are independent, coexisting events.¶Conclusions: Factors other than TNF-α have been suspected to influence NO production by macrophages, and this study indicates that IL-10 may be a candidate cytokine for resident PMO.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-2649
    Keywords: Health-related quality of life ; personality traits ; stomach cancer ; EPQ.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In an attempt to examine differential effects of personality on health-related quality of life (HRQoL) without regard to disease type, we used the HRQoL-20, a general questionnaire (Japanese original scale) we developed (comprising 20 questions related to physiological, psychological or social HRQoL) and the Eysenck Personality Questionnaire (EPQ), which measures personality traits of extraversion (E), neuroticism (N) and psychoticism (P). The subjects (399 males and 429 females), stomach cancer patients, non-cancer patients (who had received acupuncture or moxibustion treatment) and healthy controls, were classified into three personality types. The results indicated that the HRQoL score of the tolerable/tolerant type (high E, low N and high P scorers) was greater than the intolerable/intolerant type (low E, high N and low P scorers) and also the unclassified type (neither of above scorers). The HRQoL correlated positively with the E and P scales and negatively with the N scale, in the case of all subjects, with the exception of N in male cancer patients and E in male non-cancer patients. The results supported the hypothesis that the HRQoL varies with personality variables, in that each patient, in different treatment settings, strives for the situation that is congruent with his/her personality to attain a better HRQoL.
    Type of Medium: Electronic Resource
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