CONCERNING THE NATURALLY OCCURRING PORPHYRINS
نویسندگان
چکیده
منابع مشابه
Concerning the Naturally Occurring Porphyrins
Evidence for a dualism of the porphyrins in nature has been repeatedly presented by Hans Fischer (1, 2, 3). This means that both plant and animal organisms are capable of the formation of porphyrins of two isomeric series, those corresponding to aetioporphyrin III, including hemoglobin and chlorophyll, and those of the aetioporphyrin I type, the function of whose representatives is as yet very ...
متن کاملNaturally occurring ehrlichiosis in Egyptian dogs
Canine ehrlichiosis has emerged as one of the most clinically important tick-borne diseases affecting dogs. Eighty-five naturally infected dogs have been investigated, the most consistent clinical signs recorded were fever, emaciation and lymphoadenopathy, anemia, monocytosis, thrompocytopenia, hypoalbuminemia, elevation in liver enzymes and total bilirubin were the most remarkable changes asso...
متن کاملNaturally occurring enolethers
Enolethers are a group of reactive compounds also occurring in the nature and displaying different kinds of activities, such as antifungal, antibacterial, nematocidal, cytostatic, cytotoxic, phytotoxic, nematicidal, antipyretic, hypotensive, analgesic, antitussive, depresant, anticancerogenic and antiviral.
متن کاملNaturally Occurring Food Toxins
Although many foods contain toxins as a naturally-occurring constituent or, are formed as the result of handling or processing, the incidence of adverse reactions to food is relatively low. The low incidence of adverse effects is the result of some pragmatic solutions by the US Food and Drug Administration (FDA) and other regulatory agencies through the creative use of specifications, action le...
متن کاملNaturally occurring insecticides.
Naturally occurring insecticides are abundant and varied in their effects, though but a few are articles of commerce. Even for these, pyrethrum, nicotine, rotenone, hellebore, ryania, and sabadilla, there is a paucity of information on mammalian toxicology and environmental effects. In general, these materials are characterized favorably by low acute toxicity and ready dissipation in nature. Un...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1935
ISSN: 0021-9738
DOI: 10.1172/jci100643