background: ovarian cancer is the fifth leading cause of death from malignancy in women. cd4 +cd25+foxp3+ regulatory t (treg) cells are a subset of t lymphocytes with great inhibitory impact on immune response. objectives: to investigate the percentage of cd4 +cd25+foxp3+ regulatory t cells in the peripheral blood of the iranian patients with epithelial ovarian cancer compared to healthy women ...

Objetivos: determinar la correlación entre el recuento de CD4, carga viral y colonización oral por Candida en personas viviendo con VIH/SIDA (PVVS) que reciben terapia antirretroviral (TAR). Métodos: se realizó un estudio transversal correlacional 35 participantes recibían tratamiento antirretroviral. Mediante citometría flujo determinó CD4; mediante RT-PCRq confirmación aislamiento spp. Result...

abstractbackgroundcontributes substantially to patient morbidity and mortality.in this study we investigatedthe range and distribution of t-lymphocyte. subsets cd3helper/inducer cell,.th ), cd8: severe immunosuppression occurs after large thermal burn and probably+ (t cells) cd4+ (t+ (t suppressor /cytotoxic cells ,ts/c), cd3+cd4thermal injury.+/cd3+cd8+ ratio, cd19+ (b cells) and cd16+ (nk cel...

background: determination of the division history of t cells in vitro is helpful in the study of effector mechanisms against infections. technique described here uses the intracellular fluorescent label carboxyfluorescein diacetate succinimidyl ester (cfse) to monitor the proliferation. methods: in a cross sectional study, blood samples were collected from 7 volunteers with history of cutaneous...

background: cd4+ and cd8+ t cells are the main types of lymphocytes in cell-mediated immunity and play a central role in the induction of efficient immune responses against tumors. the frequencies of t cell subtypes in the peripheral blood and tumor tissues, and draining lymph nodes (dln) can be considered as useful markers for evaluation of the immune system in cancers. methods: in this study,...

background the picture that has emerged from studies investigating hiv infected people with gbv-c viremia is that they have lower plasma hiv viral loads in comparison with hiv-positive people who did not have the gbv-c viremia. objectives since gbv-c hiv coinfection has not been studied in iran, we have designed a survey to study the outcomes of gbv-c infection on hiv infected individuals. pati...

all-trans retinoic acid (atra), as an active metabolite of vitamin a, has been shown to affect immune cells. this study was performed to evaluate the effect of atra on viability, proliferation, activation and lineage-specific transcription factors of cd4+ t cells. cd4+ t cells were  separated  from  heparinized  blood  of  healthy  donors  and  were  cultured  in conditions, some with, some wit...

A study was conducted in rural Malawi to verify (a) whether the Partec CyFlow Counter((R)) for CD4+ T-cell lymphocyte counting in HIV-positive individuals could be introduced into a district hospital laboratory and (b) whether it would produce CD4 counts of acceptable quality. CD4+ cell counting was performed using the Partec CyFlow Counter and the results were compared with a reference method ...