Страна 1 од 97 резултати
Marine macroalgae have attracted much attention in recent years as a valuable source of bioactive metabolites. The cytotoxic potential of the Laurencia papillosa red alga collected from the Lebanese coast has been investigated on human breast cancer cells MCF-7. The crude extract of
BACKGROUND
Lichens produce specific secondary metabolites with different biological activity.
OBJECTIVE
This study investigated the cytotoxic effects of physodic acid, in addition to the total phenolic content and cytotoxic and antioxidant activity of acetone extract from Hypogymnia physodes (L.)
Interesting antimicrobial data from the stem bark of Sclerocarya birrea, which support its use in traditional medicine for the treatment of many diseases, have been delineated. The current study was aimed to further study some pharmacological and toxicological properties of the plant to
Rabbits tolerant to human immunoglobulin G were used to raise antisera against the Raji cell-bound circulating immune complexes from human breast cancer sera. After solid-phase adsorption treatment with glutaraldehyde-cross-linked normal human plasma, acetone-extracted normal liver tissue powder,
Bcl-2 and Bax belong to a family of proteins involved in apoptosis regulation and are believed to reside in the cellular cytoplasm. The authors recently reported interphase nuclear localization of both proteins after immunofluorescence staining of formaldehyde- and methanol-fixed human and rodent
BACKGROUND
Increased expression of the multidrug resistance gene (MDR-1)-encoded P-glycoprotein (p170[mdr-1]) is a major cause of tumor cell multidrug resistance. p170(mdr-1) functions as a drug-efflux pump to reduce the cellular accumulation of specific drugs. MDA-MB-435 human breast cancer cells
Natural products have been used for centuries as the most potent remedies to cure many diseases including cancer diseases. Angiogenesis is defined as the formation of new capillaries from existing vessels and plays a key role in the tumorigenesis process. Barbatolic acid is a little known
Noscapine (Nos), an orally available plant-derived antitussive alkaloid, is in phase II clinical trials for cancer chemotherapy. It has extensively been shown to inhibit tumor growth in nude mice bearing human xenografts of hematopoietic, breast, lung, ovarian, brain, and prostate origin. However,
Breast cancer is the most common cancer in South Africa. The acetone leaf extract of Diospyros lycioides was evaluated qualitatively and quantitatively for its antioxidant potential using DPPH assay and nitric oxide radical scavenging effect, while the viability of MCF-7 cells was evaluated using
VIP analogs, which contain a single lysine amino acid, were synthesized and evaluated using breast cancer cells. (Arg15, Arg20) VIP, (Argl5, Arg21) VIP, and (Arg20, Arg21) VIP inhibited 125I-VIP binding to T47D cells with high affinity (IC50 values of 1.2, 1.0, and 0.8 nM, respectively). The VIP
Acetone-fixed smears of DBA/2 mouse leukemia cells that produce clusters of intracytoplasmic A-particles (pronucleocapsids of mouse mammary tumor virus) were employed as an indirect immunofluorescence system to detect the antibody to A-particles in human sera. With positive test sera, specific
Triple-negative breast cancer (TNBC) is characterized by limited survival, poor prognosis, and high recurrence. Understanding the metabolic adaptations of TNBC could help reveal improved treatment regiments. Here we performed a comprehensive 1H NMR metabolic characterization of the
Plant tissue culture is used to grow plant cells, tissues, or organs under sterile and determined conditions on culture media. It is alternative to traditional vegetative propagation, and is applied as an effective technology for the production of valuable secondary metabolites. The Artemisia
There is available evidence supporting a positive association between alcohol intake and risk of breast cancer. However, there is limited information regarding possible mechanisms for this effect. Past studies from our laboratory suggest that acetaldehyde accumulation in mammary tissue after alcohol
Immunohistochemical analysis for products of vasopressin and oxytocin gene expression was performed on acetone-fixed tissues from 19 breast cancers representing a variety of tumor sub-types. Studies employed the avidin-biotin complex (ABC) immunohistochemical procedure and utilized rabbit polyclonal