reactive oxygen species (ros) are produced in many normal and abnormal processes in humans, including atheroma, asthma, joint diseases, cancer, and aging. basal levels of ros production  in  cells  could  be  related  to  several  physiological functions  including  cell proliferation, apoptosis and homeostasis. however, excessive ros production above basal levels would impair and oxidize dna, ...

aloe vera is well-known for its pharmacological and nutritional properties. the aim of the present study was to determine the effect of a. vera gel extracts on the secretion and cell content of triglyceride (tg) and cholesterol (tc) in hepg2 cells and their short-term effects on the dietary hyperlipidemic guinea pig model. the effects of increasing concentrations of a. vera crude gel and its al...

A, a spore of AS3G1 (a H. minnesotensis transformant expressing ZsGreen) attached to H. glycines second stage juvenile (J2); B, formation of an infection peg; C, the apex of the infection peg becoming globose; D, initial colonization of coelom by hyphae; E–G, hyphal growth through coelom; H–J, hyphal growth out of coelom; K–L, formation of new conidia. The scale bar in A–F, H–I, and L correspon...

Hibiscadelphus stellatus H. Oppenheimer, Bustamente, & Perlman, sp. nov., a new, narrowly endemic species from West Maui, Hawaiian Islands is described, illustrated and its affinities and conservation status are discussed. It is currently known from three populations totaling 99 plants in Kaua`ula valley on leeward western Maui. It differs from H. wilderianus, its nearest congener, in its dense...

A new genus of non-biting midges, Tapajos gen. n., is erected for T cristinae sp. n. from the Neotropical region, and placed in the subfamily Chironominae, tribe Chironomini. Adult males are characterized by the combination of bare eyes; antenna with 11 flagellomeres; antepronotal lobes fused medially; fore tibia with inner scale broad and rounded; superior volsella with a long sickle shaped, b...