Results 41 to 50 of about 29,938 (263)

Studies in homosexual patients with and without lymphadenopathy - Relationships to the acquired immune deficiency syndrome [PDF]

open access: yes, 1984
We studied the immunologic function of 19 sexually active homosexual men, ten of whom had persistent lymphadenopathy. Analysis of mononuclear cell populations distinguished homosexuals from heterosexual controls since, as a group, homosexuals had ...
Bozelka, B.   +7 more
core   +1 more source

Lymphocyte subpopulations and neutrophil function in chronic human Chagas' disease Subpopulações linfocitárias e função neutrofílica na doença de Chagas humana

open access: yesRevista do Instituto de Medicina Tropical de São Paulo, 1990
The absolute numbers of total leukocytes, lymphocytes, T cells, helper/inducer, suppressor/cytotoxic and B cells were decreased in the peripheral blood of patients with chronic Chagas' disease.
J. C. Voltarelli   +3 more
doaj   +1 more source

Antigen-presenting cells and antigen presentation in tertiary lymphoid organs [PDF]

open access: yes, 2016
Tertiary lymphoid organs (TLOs) form in territorialized niches of peripheral tissues characterized by the presence of antigens; however, little is known about mechanism(s) of antigen handling by ectopic lymphoid structures.
Bedaj, Marija   +3 more
core   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Childhood sarcoidosis: A rare but fascinating disorder

open access: yesPediatric Rheumatology Online Journal, 2008
Childhood sarcoidosis is a rare multisystemic granulomatous disorder of unknown etiology. In the pediatric series reported from the southeastern United States, sarcoidosis had a higher incidence among African Americans. Most reported childhood cases have
Gedalia Abraham, Shetty Avinash K
doaj   +1 more source

"Tolerization" of human T-helper cell clones by chronic exposure to alloantigen [PDF]

open access: yes, 1988
Induction of clonal anergy in T-helper (Th) cells may have a role in regulating immune responses. A model system for studying Th cell tolerization at the clonal level in vitro could be useful for investigating the mechanisms involved.
Brocker, Thomas   +6 more
core  

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Alterações radiográficas em pacientes com a co-infecção vírus da imunodeficiência humana/tuberculose: relação com a contagem de células TCD4+ Radiographic alterations in patients presenting human immunodeficiency virus/tuberculosis coinfection: correlation with CD4+ T cell counts

open access: yesJornal Brasileiro de Pneumologia, 2006
OBJETIVO: Correlacionar os padrões radiológicos com a contagem de células TCD4+ em pacientes co-infectados por tuberculose e vírus da imunodeficiência humana.
Rosemeri Maurici da Silva   +2 more
doaj   +1 more source

Modulation of human lymphocyte function by C3a and C3a(70-77). [PDF]

open access: yes, 1982
Human C3a and the synthetic octapeptide C3a (70-77), which retains the activities of an anaphylatoxin, inhibit in a concentration-dependent manner the generation of leukocyte inhibitory factor (LIF) activity by human mononuclear leukocytes and T ...
Goetzl, EJ, Payan, DG, Trentham, DE
core  

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

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