Related Experiment Video
Updated: Jul 20, 2026
07:02
Identifying Dysregulated Genes Induced by Kaposi's Sarcoma-associated Herpesvirus (KSHV)
Published on: September 14, 2010
Generalized lymphadenopathy in homosexual men.
Annals of Internal Medicine
|November 1, 1983
Summary
Generalized lymphadenopathy in homosexual men may indicate acquired immunodeficiency. This immune dysfunction can lead to opportunistic infections, Kaposi
Area of Science:
- Immunology
- Virology
- Oncology
Background:
- Generalized lymphadenopathy was observed in 90 homosexual or bisexual men.
- Patients had histories of multiple sexually transmitted diseases and drug use.
- Lymph node histology revealed varied patterns including hyperplasia and involution.
Purpose of the Study:
- To investigate the clinical, pathological, immunological, and genetic aspects of generalized lymphadenopathy in homosexual men.
- To explore the association between lymphadenopathy and acquired immunodeficiency.
- To identify potential risk factors and disease progression.
Main Methods:
- Epidemiologic, clinical, pathological, immunological, and genetic analyses were performed.
- Lymph node biopsies were examined histologically.
- Human Leukocyte Antigen (HLA) typing, specifically for HLA-DR5, was conducted.
Main Results:
- Three distinct lymph node histological patterns were identified.
- A significant increase in the frequency of HLA-DR5 was observed in patients compared to controls.
- All patients exhibited impaired cell-mediated immunity.
Conclusions:
- Generalized lymphadenopathy is suggested to be part of a spectrum of acquired immunodeficiency.
- This spectrum includes opportunistic infections, Kaposi's sarcoma, and malignant lymphomas.
- Severe immune dysfunction preceded the development of these opportunistic conditions in 15 patients.
Keywords:
Acquired Immunodeficiency SyndromeAmericasAntibodiesBacterial And Fungal DiseasesBehaviorCancerDeveloped CountriesDeveloping CountriesDiseasesDrugsHiv InfectionsHomosexualsImmunologic FactorsImmunological EffectsInfectionsNeoplasmsNorth AmericaNorthern AmericaSex BehaviorSexually Transmitted DiseasesUnited StatesViral Diseases
Related Concept Videos
01:16Primary Lymphoid Organs
Primary lymphoid organs are pivotal in the formation, development, and maturation of lymphocytes, the white blood cells that serve as the backbone of our immune system. This crucial function underscores their fundamental role in maintaining our overall health and immunity. The two primary lymphoid organs of prime importance are the red bone marrow and the thymus.
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...
01:15Secondary Lymphoid Organs
Secondary organs, including lymph nodes, the spleen, and mucosa-associated lymphoid tissue (MALT), work harmoniously to protect us from disease and infection.
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
01:23Detailed Structure and Function of Lymph Nodes
Lymph nodes are bean-shaped structures that cluster along the lymphatic vessels in the inguinal, axillary, and cervical regions. Each node is divided into compartments by a capsule that extends trabeculae inward.
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...
01:23Genital Herpes
Genital herpes is a sexually transmitted infection primarily caused by herpes simplex virus type 2 (HSV-2), though herpes simplex virus type 1 (HSV-1) is increasingly implicated in genital infections, particularly among younger populations. Transmission occurs mainly through sexual contact, with asymptomatic viral shedding serving as a major route of spread. This characteristic makes HSV-2 difficult to control at a population level, as individuals may unknowingly transmit the virus even in the...
01:28Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...
01:23Cirrhosis I: Introduction
Cirrhosis is a chronic, irreversible liver disease characterized by the widespread replacement of healthy liver tissue with fibrotic scar tissue and the formation of regenerative nodules.Etiology of cirrhosisCirrhosis results from sustained liver injury that triggers progressive fibrosis and structural remodeling. The underlying causes are diverse, encompassing common and less frequent clinical conditions. Regardless of the origin, all causes lead to chronic inflammation, hepatocyte loss, and...