We previously investigated the effects of an aqueous extract of maté (mate) tea, made from the leaves of Ilex paraguariensis, on the diabesity and metabolic syndrome features in a mouse model. Mate induced significant decreases in body weight (BW), body mass index, and food intake (FI). In this study, to verify the mode of action of mate on FI and consequently on BW, we examined the anorexic ef...

Cuckoldry is an adaptive problem faced by parentally investing males of socially monogamous species (e.g., humans and many avian species). Mate guarding and frequent in-pair copulation (IPC) may have evolved as anti-cuckoldry tactics in avian species and in humans. In some avian species, the tactics are used concurrently, with the result that mate guarding behaviors and IPC frequency are correl...

Good genes models of mate choice predict additive genetic benefits of choice whereas the compatibility hypothesis predicts nonadditive fitness benefits. Here the Chinese rose bitterling, Rhodeus ocellatus, a freshwater fish with a resource-based mating system, was used to separate additive and nonadditive genetic benefits of female mate choice. A sequential blocked mating design was used to tes...

Low back pain and neck pain are major public health problems in the USA [1]. In a 3‐month prevalence study conducted across the USA, more than 34 million (17%) adults reported low back pain alone, 9 million (4%) reported neck pain alone and 19 million (9%) reported both low back pain and neck pain, resulting in a 3‐month combined prevalence of 31% of adults [1]. Studies conducted elsewhere repo...

sequence encoding the chloroplast RecA protein was identified from the Kazusa EST database for the unicel)ular green alga, C7lalamydomonas reinhardtii (http:orwww.kazusa.or.jp/en/plant!chlamy!ESTI). Analysis of the cDNA sequence identified an open reading frame (ORF) of 414 amino acids encoding a eubacteria-type RecA protein. Thus the corresponding gene was named RECI. The predicted protein con...

Choosing an appropriate mate is one of the most important decisions that any animal has to make. The traditional view in non-human systems is that animals are largely slaves to their genes and an individual’s mate choice is handed down from their parents. However, in recent years it has become clear that many animals show active decision making in who to mate with and that females may copy mate...

BACKGROUND Drinking mate has been associated with cancers of the esophagus, oropharynx, larynx, lung, kidney, and bladder. We conducted this study to determine whether drinking mate could lead to substantial exposure to polycyclic aromatic hydrocarbons (PAH), including known carcinogens, such as benzo[a]pyrene. METHODS The concentrations of 21 individual PAHs were measured in dry leaves of ei...

Most studies of repeatability examine female mate choice, but male mate choice may have significant evolutionary consequences when males of a sexual species are sexually parasitized by heterospecific gynogenetic females as is the case for sailfin mollies, Poecilia latipinna. Amazon mollies, Poecilia formosa, are all female gynogens that require sperm from P. latipinna for initiation of embryoge...