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At least 19 recordsLinked to original sources
PubMed1990

The toxic factor in white snakeroot: identity, analysis and prevention.

White snakeroot (Eupatorium rugosum Houtt) has been known to cause trembles in animals and milk sickness in humans since the American Revolution. It still continues to poison animals. Horses and goats are particularly sensitive to white snakeroot poisoning. Resurgence of livestock production on small farm units, and utilization of fresh raw milk may result in milk sickness; if the animals have white snakeroot exposure. The goat is the only animal with good toxicity threshold data. In other animals and humans the toxicity thresholds of white snakeroot are not known, and that until responsible toxic principles are identified and their fate in animals and milk studied, such an assessment will not be possible. The toxic component(s) in white snakeroot has not been identified. The mechanism of action of the toxin in animals or humans remains unknown. However, metabolic studies in chicks initially suggest that a specific metabolic enzyme may be the target of the toxic principle. Components of white snakeroot that are toxic after microsomal activation have been isolated. Cytochrome P-450 is responsible for this activation. Activation in vitro can be totally inhibited by the cytochrome P-450 specific autocatalytic inhibitor, 1-aminobenzotriazole. In view of the importance of white snakeroot in the history of the United States and the ongoing problems today, it would be most unfortunate if studies were not pursued expeditiously to identify the toxicant(s) responsible, and to understand the mechanism(s) of action and toxicity thresholds.

Animals↗
PubMed1998

A review of the toxicosis and biological properties of the genus Eupatorium.

Eupatorium genus grows wild in many parts of the world. A number of species of Eupatorium are toxic to grazing animals. Milk sickness in humans is caused by ingestion of milk of the animals reared on the pastures infested with Eupatorium rugosum (white snakeroot). While some information is available on the toxins in various species of Eupatorium, ambiguities still persist in extrapolation of the data to field incidence of toxicosis. Eupatorium genus has been used for its medicinal properties for many decades. A number of bioactive natural products have been reported in the extracts of Eupatorium spp. and the genus is a promising bioresource for preparation of drugs and value-added products.

Alleles↗
PubMed1985

Amelioration of the adverse effect of a gastrointestinal challenge with Salmonella enteritidis on weanling rats by a yogurt diet.

The response of yogurt-fed rats and the corresponding unfermented milk-fed rats to an infectious gastrointestinal challenge has been compared. After 1 (2 trials), 7 (4 trials), 14 and 21 (1 trial each) days on freeze-dried milk or yogurt diets, the rats were inoculated intra-gastrically by intubation per os with 4.5 X 10(10) +/- 0.7 colony forming units (mean +/- SEM) of Salmonella enteritidis. Challenged and control rats were monitored during the 3 weeks post-inoculation for viability, weight gain, feed consumption, and feed efficiency. In general, challenged yogurt-fed rats exhibited significantly superior weight gain and feed efficiency (but not feed consumption) values in week 1 post-infection, but the differences were not significant in week 2 post-infection. Sick milk- and yogurt-fed rats convalesced in week 3. Pooled mortality data indicated that yogurt-fed rats survived better than milk-fed rats. Yogurt did not prevent salmonellosis per se but significantly reduced the mortality and weight gain deceleration.

Animals↗
PubMed1998

"Milk makes me sick but my body needs it": conflict and contradiction in the establishment of authoritative knowledge.

This article takes lactose intolerance as a topic for exploring clashes of power, authority, and knowledge in clinical interactions and interpretations of laywomen. In clinics providing maternal and child care, staff and clients jointly produced authoritative knowledge, most often a version of biomedicine. The Euroamerican staff tended to give advice that was biologically appropriate for them but not for many of their patients, a process reflecting what we refer to as biocentrism. Resulting information given to pregnant and lactating women and diagnoses of children's growth patterns were inappropriate in some cases, with potentially serious legal and health implications. Clinic staff often unwittingly ignored the efforts of their clients to begin a discussion of discrepancies between their bodily knowledge and clinic advice. Some women created their own syntheses, which supported the ascendancy of biomedical knowledge but were not in the interests of their own health.

Adult↗
PubMed1987

Lipid and retinol contents in the milk of Egyptian mothers with normal and sick infants.

Mature breast milk was collected from Egyptian lactating mothers (N = 35) and was analyzed for its lipid, retinol and carotene contents. Mean values of 3.78 +/- 0.3%, 29.5 +/- 4.92 micrograms/100 g and 65.2 +/- 16.28 micrograms/100 g were obtained for lipid, retinol and carotene in the milk of mothers with normal infants. The milk of mothers with sick infants was inferior in its quality with respect to the lipid and retinol contents. Milk retinol level correlated significantly with the growth of the normal infants.

Carotenoids↗