12 torthaí
Excessive proliferation and apoptosis resistance are special characteristics of pulmonary artery smooth muscle cells (PASMCs) in pulmonary arterial hypertension (PAH). However, the drugs in clinical use for PAH target vascular dilatation, which do not exert adequate effects in patients Pro-inflammatory cytokines, such as tumor necrosis factor (TNF)-α and interleukin-1α (IL-1α), trigger the activation of the transcription factor nuclear factor-κB, a molecule that induces the expression of a variety of genes, including intercellular adhesion molecule-1 (ICAM-1). Here, we report that
Although muscle diseases are relatively rare, several treatable myopathies must be recognized by the clinician to maximize the possibility of restoring strength in affected patients. The inflammatory myopathies, including polymyositis, dermatomyositis, inflammatory necrotizing myopathy, and myositis
The history of B. hominis is unique. Few infectious agents have provoked the many misconceptions that plague this enigmatic parasitic ameba. Conflicting descriptions of its nature and pathogenesis have continued throughout the 20th century. As seen by the greatly expanded number of reports in recent
Amoeboma was diagnosed in three patients: a Bengal seaman aged 40 and two Dutch citizens who had lived in the tropics, a man aged 41 and a woman aged 56. The first-mentioned patient had a rectal tumour easily inspected by sigmoidoscopy; a biopsy sample contained Entamoeba histolytica. The faeces
We studied a young woman with an eating disorder. To induce vomiting, she took syrup of ipecac daily for 2 years, and then developed insidious, progressive muscle weakness. Skin findings were similar to those of dermatomyositis. Muscle biopsy, however, was similar to experimental emetine myopathy
Endothelial leukocyte adhesion molecule-1 (ELAM-1) is a membrane protein exclusively expressed on endothelial cells, where it plays a key role in the inflammatory response by adhering to a subset of leukocytes. The expression of the ELAM-1 gene is very tightly regulated. ELAM-1 is undetectable in
Diverse particulate and soluble stimuli trigger two metabolic bursts in mouse peritoneal macrophages important in the inflammatory and/or cytotoxic actions of the cells: release, oxygenation, and further metabolism of arachidonic acid from endogenous phospholipids and reduction of molecular oxygen
At the moment when his operas got a European celebrity, Vincenzo Bellini born in 1801 rapidly died in September 1835 after a three weeks digestive illness, with mainly dysenteria. Young and healthy, this unexpected event questioned the authorities in Paris. The post mortem examination showed that
Nuclear factor-kappa B (NF-kappaB) is a transcription factor that plays a critical role across many cellular processes including embryonic and neuronal development, cell proliferation, apoptosis, and immune responses to infection and inflammation. Dysregulation of NF-kappaB signaling is associated
During an 18-year period, 501 cases of thoracic complications of amebic abscess of the liver were studied; 175 had inflammatory reactions of thoracic structures (165 with pleural effusions and pneumonitis, ten with pericarditis) and 326 ruptured through the diaphragm (175 into the airways, 106 into
With the objective of linking early findings relating to the novel SARS-CoV-2 coronavirus with potentially informative findings from prior research literature and to promote investigation toward therapeutic response, a coherent cellular and molecular pathway is proposed for COVID-19. The pathway is