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Full-Text Articles in Medicine and Health Sciences
Sarcopenia, Obesity, And Natural Killer Cell Immune Senescence In Aging: Altered Cytokine Levels As A Common Mechanism, Charles T. Lutz, Lebris S. Quinn
Sarcopenia, Obesity, And Natural Killer Cell Immune Senescence In Aging: Altered Cytokine Levels As A Common Mechanism, Charles T. Lutz, Lebris S. Quinn
Pathology and Laboratory Medicine Faculty Publications
Human aging is characterized by both physical and physiological frailty. A key feature of frailty, sarcopenia is the age-associated decline in skeletal muscle mass, strength, and endurance that characterize even the healthy elderly. Increases in adiposity, particularly in visceral adipose tissue, are almost universal in aging individuals and can contribute to sarcopenia and insulin resistance by increasing levels of inflammatory cytokines known collectively as adipokines. Aging also is associated with declines in adaptive and innate immunity, known as immune senescence, which are risk factors for cancer and all-cause mortality. The cytokine interleukin-15 (IL-15) is highly expressed in skeletal muscle tissue …
5q Minus Myelodysplasia Associated With Multiple Epithelioid Granulomas Within Conventional Renal Cell Carcinoma, Rahul G. Matnani, Roshan K Patel, Stephen E Strup, Rouzan Karabakhtsian
5q Minus Myelodysplasia Associated With Multiple Epithelioid Granulomas Within Conventional Renal Cell Carcinoma, Rahul G. Matnani, Roshan K Patel, Stephen E Strup, Rouzan Karabakhtsian
Pathology and Laboratory Medicine Faculty Publications
A 69-year-old Caucasian female, with a previous diagnosis of 5q minus myelodysplastic syndrome, presented with conventional renal cell carcinoma (RCC) associated with multiple-epithelioid nonnecrotizing granulomas. Two previous reports of sarcoidosis, primarily involving the lung and skin, have been described in patients with 5q minus myelodysplasia. A cluster of closely linked genes encoding for cytokines such as IL-4, IL-5, and IL-3 are present on chromosome 5q. Hence, in sarcoidosis, cytokine imbalances associated with the deletion of these cytokine genes have been postulated. However, an occurrence of epithelioid granulomas within a carcinoma, in preexisting clonal myelodysplastic syndrome, has not been described. The …