Angiotensin-converting enzyme (ACE) inhibitors reduce the risk of recurrent myocardial infarction in patients with left ventricular dysfunction. Tissue factor (TF), the initiator of blood coagulation, plays a pivotal role in arterial thrombosis that occurs after atherosclerotic plaque fissuring. Because monocytes synthesize TF and contain several components of the renin-angiotensin system, we i...

Cyclosporine A is a noncytotoxic, natural, 11 amino acid cyclic peptide used clinically as an immunosuppressant to prevent organ rejection after transplantation. Cyclosporine A is an in vitro calmodulin antagonist. At the low concentrations required to inhibit calmodulin-dependent phosphodiesterase in vitro, cyclosporine A causes a dramatic alteration in the nuclear morphology of 23% of human p...

Mononuclear leukocytes isolated from the peripheral blood of 10 untreated patients with advanced stages of Hodgkin's disease and 26 normal volunteers were stimulated with allogeneic cells from normal donors in a one-way mixed lymphocyte culture. When the patients' cells were stimulated by an increased number of normal cells, the baseline mixed lymphocyte culture was suppressed 77.1% +/- 4.1%. I...

We examined the relationship between cholesterol synthesis and high affinity low density lipoprotein (LDL) catabolism in freshly isolated mononuclear leukocytes and plasma sterols and apolipoprotein concentrations in three homozygous and one heterozygous subject with sitosterolemia with xanthomatosis and in 12 control subjects. Observations in untreated subjects were compared during therapy wit...

A delayed hypersensitivity to 7,12-dimethylbenz(a)anthracene was elicited in guinea pigs after contact sensitization. This sensitivity was characterized by its time of appearance, histology, specificity, and transfer characteristics. The reaction had its maximal dermal reactivity 24 hr after challenge, was characterized by a mononuclear cell infiltration, demonstrated immunological specificity,...

Sterol synthesis in human mononuclear leukocytes is stimulated by delipidated serum. Synthesis in media containing serum delipidated by three different methods is compared. Significant differences between subjects are shown and the differences are maximized by measuring synthesis in serum delipidated by extraction with butanol-diisopropyl ether 40:60 and diethyl ether.

Background and purpose: Cytotoxic effects of Ligustrum vulgare leaves on HeLa cervical tumor cells suggested that extracts should be investigated as potential anticancer agents. Therefore, we examined a antileukemic activity methanolic fruit two types leukemia cells, MOLT-4 JVM-13, lymphocytes isolated from the blood 33 chronic lymphocytic (CLL) patients mononuclear leukocytes 18 healthy indivi...

The aim of this study was to identify the features CD4+ lymphocytes apoptosis in children with cryptosporidiosis. Feces for detection cryptosporidium and venous blood were material study. Mononuclear leukocytes isolated from whole cultured a complete culture medium. Cells incubated 24 hours inducers receptor (TNFα) mitochondrial pathways (dexamethasone). Cryptosporidia have been found 35% acute...