Dm. Byrnes et al., STRESSFUL EVENTS, PESSIMISM, NATURAL-KILLER-CELL CYTOTOXICITY, AND CYTOTOXIC SUPPRESSOR T-CELLS IN HIV+ BLACK-WOMEN AT RISK FOR CERVICAL-CANCER/, Psychosomatic medicine, 60(6), 1998, pp. 714-722
Objective: This study examines whether stressful negative life events
and pessimism were associated with lower natural killer cell cytotoxic
ity (NKCC) and T cytotoxic/suppressor cell (CD8+CD3+) percentage in bl
ack women co-infected with human immunodeficiency virus Type 1 (HIV-1)
and human papillomavirus (HPV), a viral initiator of cervical cancer.
Method: Psychosocial interviews, immunological evaluations, and cervi
cal swabs for HPV detection and subtyping were conducted on 36 HIV+ Af
rican-American, Haitian, and Caribbean women. Results: Greater pessimi
sm was related to lower NKCC and cytotoxic/suppressor cells after cont
rolling for presence/absence of HPV Types 16 or 18, behavioral/lifesty
le factors, and subjective impact of negative life events. Conclusions
: A pessimistic attitude may be associated with immune decrements, and
possibly poorer control over HPV infection and increased risk for fut
ure promotion of cervical dysplasia to invasive cervical cancer in HIV
+ minority women co-infected with HPV.