Richard F. Keeler
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Biology
Richard F. Keeler's Degrees
- PhD Physiology University of California, Berkeley
- Bachelors Biology Stanford University
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(Suggest an Edit or Addition)Richard F. Keeler's Published Works
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- Effects of veratrum alkaloids on membrane potential and conductance of squid and crayfish giant axons. (1973) (241)
- Effects of poisonous plants on livestock (1978) (189)
- Teratogenic compounds of Veratrum californicum (Durand). V. Comparison of cyclopian effects of steroidal alkaloids from the plant and structurally related compounds from other sources. (1968) (153)
- Chronologic evaluation of teratogenicity in sheep fed Veratrum californicum. (1965) (109)
- Lupine, a cause of crooked calf disease. (1967) (108)
- Teratogenic compounds of veratrum californicum (durand) - VI (1969) (104)
- Multiple congenital contractures (MCC) and cleft palate induced in goats by ingestion of piperidine alkaloid-containing plants: reduction in fetal movement as the probable cause. (1990) (93)
- Lupin alkaloids from teratogenic and nonteratogenic lupins. III. Identification of anagyrine as the probable teratogen by feeding trials. (1976) (89)
- Teratogenic compounds of Veratrum californicum (Durand) X. Cyclopia in rabbits produced by cyclopamine. (1970) (83)
- Abortive and teratogenic effects of locoweed on sheep and cattle. (1967) (74)
- Cyclopamine and related steroidal alkaloid teratogens: Their occurrence, structural relationship, and biologic effects (1978) (74)
- Toxicoses in livestock from the hemlocks (Conium and Cicuta spp.). (1988) (71)
- Teratogenic Effects of Cyclopamine and Jervine in Rats, Mice and Hamsters 1 (1975) (69)
- Induction of terata in hamsters by solanidane alkaloids derived from Solanum tuberosum. (1996) (63)
- Tungstate as an antagonist of molybdate in Azotobacter vinelandii. (1957) (62)
- Teratogenic effects in cattle of Conium maculatum and conium alkaloids and analogs. (1978) (62)
- Teratogens in plants. (1984) (60)
- Piperidine alkaloid composition and relation to crooked calf disease-inducing potential of Lupinus formosus. (1989) (59)
- Congenital deformities in lambs, calves, and goats resulting from maternal ingestion of Veratrum californicum: hare lip, cleft palate, ataxia, and hypoplasia of metacarpal and metatarsal bones. (1972) (55)
- Teratogenic compounds of Veratrum californicum (Durand). II. Production of ovine fetal cyclopia by fractions and alkaloid preparations. (1966) (55)
- Congenital skeletal malformations and cleft palate induced in goats by ingestion of Lupinus, Conium and Nicotiana species. (1990) (53)
- Teratogenic compounds of Veratrum californicum (Durand). I. Preparation and characterization of fractions and alkaloids for biologic testing. (1966) (51)
- Anatomical features of Vibrio fetus: Electron microscopic survey. (1966) (50)
- Sequence in the abortive and teratogenic effects of locoweed fed to sheep. (1969) (49)
- Teratogenicity in swine of the tobacco alkaloid anabasine isolated from Nicotiana glauca. (1984) (48)
- Teratogenic compounds of Veratrum californicum (Durand). VII. The structure of the glycosidic alkaloid cycloposine. (1969) (47)
- Plants poisonous to livestock in the western States. (1980) (45)
- Teratogenic compounds in Veratrum californicum (Durand) IX. Structure-activity relation. (1970) (43)
- Steroidal Alkaloid Teratogens: Molecular Probes for Investigation of Craniofacial Malformations (1996) (43)
- Lupin alkaloids from teratogenic and nonteratogenic lupins. I. Correlation of crooked calf disease incidence with alkaloid distribution determined by gas chromatography. (1973) (43)
- Coniine, a teratogenic principle from Conium maculatum producing congenital malformations in calves. (1974) (43)
- Teratogenic compounds of Veratrum californicum (Durand). 13. Structure of muldamine. (1971) (42)
- Impact of plant toxins on fetal and neonatal development: a review. (1992) (40)
- Congenital skeletal malformations induced by maternal ingestion of Conium maculatum (poison hemlock) in newborn pigs. (1985) (39)
- Lupine-Induced Crooked Calf Disease and a Management Method to Reduce Incidence (1977) (37)
- Livestock models of human birth defects, reviewed in relation to poisonous plants. (1988) (37)
- Teratogenicity of the solatium alkaloid solasodine and of ‘Kennebec’ potato sprouts in hamsters (1976) (37)
- Induction of cleft palate in newborn pigs by maternal ingestion of poison hemlock (Conium maculatum). (1985) (36)
- Plant and Fungal Toxins (1984) (35)
- Toxicology of plant and fungal compounds (1991) (35)
- Effects of teratogenic agents in range plants. (1968) (35)
- Structure-activity relation of steroid teratogens. 3. Solanidan epimers. (1978) (35)
- Spirosolane-containing Solanum species and induction of congenital craniofacial malformations. (1990) (35)
- Radio ultrasound observations of the fetotoxic effects in sheep from ingestion of Conium maculatum (poison-hemlock). (1988) (34)
- Plant terpenoids as pesticides. (1991) (33)
- Congenital tracheal stenosis in lambs induced by maternal ingestion of Veratrum californicum. (1985) (33)
- Lupin alkaloids from teratogenic and nonteratogenic lupins. II. Identification of the major alkaloids by tandem gas chromatography-mass spectrometry in plants producing crooked calf disease. (1973) (32)
- Congenital defects in calves from maternal ingestion of Nicotiana glauca of high anabasine content. (1979) (31)
- Effects of alkaloids of Veratrum californicum on chick embryos. (1973) (31)
- Carbon-13 and Proton Nuclear Magnetic Resonance Spectra of Veratrum Alkaloids (1986) (30)
- Maternal and fetal toxicity of poison hemlock (Conium maculatum) in sheep. (1988) (30)
- The nature of congenital limb defects induced in lambs by maternal ingestion of Veratrum californicum. (1987) (30)
- Toxic and teratogenic alkaloids of western range plants (1969) (30)
- Teratogenicity and toxicity of coniine in cows, ewes, and mares. (1980) (29)
- A congenital deformity in calves induced by the maternal consumption of lupin (1968) (28)
- Teratogenic effects of Nicotiana glauca and concentration of anabasine, the suspect teratogen in plant parts. (1981) (28)
- Cleft palate in cattle. (1968) (28)
- Pathology in hamsters administered Solanum plant species that contain steroidal alkaloids. (1989) (28)
- Chemical Compounds of Veratrum calif ornicum Related to Congenital Ovine Cyclopian Malformations (1964) (27)
- Nicotiana glauca-induced congenital deformities in calves: clinical and pathologic aspects. (1981) (27)
- Spina bifida, exencephaly, and cranial bleb produced in hamsters by the solanum alkaloid solasodine. (1976) (27)
- Expression of Veratrum alkaloid teratogenicity in the mouse. (1990) (26)
- Known and suspected teratogenic hazards in range plants. (1972) (26)
- A probable hereditary skeletal deformity in Hereford cattle. (1967) (26)
- Congenital deformities produced in hamsters by potato sprouts. (1978) (26)
- Individual animal susceptibility and its relationship to induced adaptation or tolerance in sheep to Galega officinalis L. (1988) (24)
- Structure-activity relation of steroid teratogens. I. Jervine ring system. (1978) (23)
- The preparation and characterization of cell walls and the preparation of flagella of Vibrio fetus. (1966) (23)
- Early embryonic death in lambs induced by Veratrum californicum. (1990) (23)
- Concentration of galegine in Verbesina encelioides and Galega oficinalis and the toxic and pathologic effects induced by the plants. (1992) (23)
- Myopathy in cattle induced by alkaloid extracts from Thermopsis montanta, Laburnum anagyroides and a Lupinus sp. (1990) (23)
- Quinolizidine and piperidine alkaloid teratogens from poisonous plants and their mechanism of action in animals. (1993) (21)
- Toxicity and teratogenicity of Conium maculatum in swine (1983) (21)
- ALKALOID TERATOGENS FROM LUPINUS, CONIUM, VERATRUM, AND RELATED GENERA (1978) (21)
- Oral, Osmotic Minipump, and Intramuscular Administration to Sheep of the Veratrum Alkaloid Cyclopamine (1989) (20)
- Teratogenic Compounds of Veratrum californicum (Durand) XI. Gestational Chronology and Compound Specificity in Rabbits (1971) (20)
- Lupin alkaloids from teratogenic and nonteratogenic lupins. IV. Concentration of total alkaloids, individual major alkaloids, and the teratogen anagyrine as a function of plant part and stage of growth and their relationship to crooked calf disease. (1976) (20)
- Lesions of potato sprout and extracted potato sprout alkaloid toxicity in Syrian hamsters. (1988) (20)
- Toxicosis from and possible adaptation to Galega officinalis in sheep and the relationship to Verbesina encelioides toxicosis. (1986) (19)
- Tricine-Buffered Tissue Culture Media for Control of Mycoplasma Contaminants 1 (1971) (19)
- Effects on sheep of the milkweeds Asclepias eriocarpa and A. labriformis and of cardiac glycoside-containing derivative material. (1979) (19)
- Handbook of natural toxins. Volume 1. Plant and fungal toxins. (1983) (18)
- Structure-activity relations of teratogenic natural products (1994) (18)
- Mechanism of Death in Syrian Hamsters Gavaged Potato Sprout Material (1988) (18)
- SILICON METABOLISM AND SILICON‐PROTEIN MATRIX INTERRELATIONSHIP IN BOVINE UROLITHIASIS * (1963) (16)
- Teratogenic Compounds of Veratrum californicum (Durand). XIV. Limb Deformities Produced by Cyclopamine (1973) (16)
- Implication of C-5, C-6 unsaturation as a key structural factor in steroidal alkaloid-induced mammalian teratogenesis (1993) (16)
- Nutritional muscular dystrophy in lambs--selenium analysis of maternal, fetal, and juvenile tissues. (1962) (16)
- Comparison of the teratogenicity in rats of certain potato-type alkaloids and the veratrum teratogen cyclopamine. (1973) (14)
- Structure-activity relation of steroid teratogens. 2. N-substituted jervines. (1978) (13)
- EXTRACELLULAR ANTIGENS OF NOCARDIA ASTEROIDES. I. PRODUCTION AND IMMUNOLOGIC CHARACTERIZATION. (2015) (13)
- Structure of the steroidal alkaloid muldamine and its deacetyl derivative (1982) (13)
- Teratogenicity and toxicity of wild tree tobacco, Nicotiana glauca in sheep. (1984) (13)
- Physiologic responses of ruminants to toxic factors extracted from rumen bacteria and rumen fluid. (1966) (13)
- An apparent relationship between locoism and lathyrism. (1967) (13)
- ANTIGENIC AND RELATED BIOCHEMICAL PROPERTIES OF LISTERIA MONOCYTOGENES I (1960) (13)
- Structure and stereochemistry of steroidal amine teratogens. (1984) (12)
- Teratogenic compounds of Veratrum californicum as a function of plant part, stage, and site of growth☆ (1971) (12)
- Role of vitamin E in the etiology of spontaneous hemorrhagic necrosis of the central nervous system of fetal hamsters. (1979) (12)
- The toxicity of Eupatorium adenophorum for the liver of the mouse. (1992) (11)
- Crooked calf syndrome, a plant‐induced congenital deformity (1967) (11)
- Preliminary investigation of the relationship between bovine congenital lathyrism induced by aminoacetonitrile and the lupine induced crooked calf disease. (1969) (11)
- Inhibition of limb chondrogenesis by a Veratrum alkaloid: temporal specificity in vivo and in vitro. (1985) (11)
- Color Reaction for Certain Amino Acids, Amines, and Proteins (1959) (11)
- Teratogenic Compounds of Veratrum californicum (Durand). III Malformations of the Veratramine-Induced Type from Ingestion of Plant Or Roots (1967) (11)
- The total alkaloid and anagyrine contents of some bitter and sweet selections of lupin species used as food. (1980) (11)
- Occurrence of spontaneous hemorrhagic necrosis of the central nervous system in fetal hamsters. (1975) (10)
- Cyclopia in sheep caused by plant teratogens. (1971) (10)
- Reducing Incidence of Plant-Caused Congenital Deformities in Livestock by Grazing Management (1978) (10)
- Experimental teratogenic lathyrism in sheep and further comparative aspects with teratogenic locoism. (1971) (10)
- Toxins and teratogens of higher plants. (1975) (9)
- THE METABOLISM OF SILICON IN THE RAT AND ITS RELATION TO THE FORMATION OF ARTIFICIAL SILICEOUS CALCULI (1959) (9)
- Comparative effects of retinoic acid and jervine on chondrocyte differentiation. (1987) (9)
- Teratogenic effects of aminopterin in sheep. (1968) (9)
- Intracellular localization of iron, calcium, molybdenum and tungsten in Azotobacter vinelandii. (1958) (9)
- Specific craniofacial defects induced by jervine in the cultured rat embryo. (1983) (9)
- Failure of Blighted Russet Burbank Potatoes to Produce Congenital Deformities in Rats (1974) (8)
- DISTRIBUTION OF MOLYBDENUM99 IN CELL-FREE PREPARATIONS OF AZOTOBACTER VINELANDII (1956) (8)
- Effect of natural teratogens in poisonous plants on fetal development in domestic animals. (1972) (8)
- Absence of arthrogryposis in newborn Hampshire pigs from sows ingesting toxic levels of jimsonweed during gestation. (1981) (7)
- STUDIES ON THE TOXIC PRINCIPLE OF Asclepias eriocarpa AND Asclepias labriformis (1978) (7)
- Nutritional muscular dystrophy in lambs--the effect of muscular activity on the symmetrical distribution of lesions. (1962) (7)
- Congenital deformities in swine induced by wild tree tobacco, Nicotiana glauca. (1983) (7)
- Handbook of natural toxins. Volume 6. Toxicology of plant and fungal compounds. (1991) (7)
- An electrophoretic analysis of protein extracts from normal and dystrophic ovine muscle. (1961) (7)
- Stimulating eructation and vomition in normal and bloated ruminants with alkaloidal extracts from Veratrum spp. (1966) (7)
- Possible Teratogenic Effects of Veratramine (1966) (6)
- Isolation of rubijervine from Veratrum californicum (1974) (6)
- Toxicity of Thermopsis montana in cattle. (1986) (6)
- Conium, Lupinus, and Nicotiana alkaloids: fetal effects and the potential for residues in milk. (1990) (6)
- Isolation of teratogenic alkaloids by reversed-phase high-performance liquid chromatography. (1984) (5)
- The testing of blighted, aged, and control Russet Burbank potato tuber preparation for ability to produce spina bifida and anencephaly in rats, rabbits, hamsters, and mice (1975) (5)
- Failure of dietary supplementation to prevent the abortions and congenital malformations of lathyrism and locoism in sheep. (1971) (5)
- Hemorrhagic necrosis of the central nervous system of fetal hamsters: litter incidence and age-related pathological changes. (1978) (5)
- Molybdate metabolism of Azotobacter (1957) (4)
- Role of phenol glycosides in plant-herbivore interactions. (1991) (4)
- Multifactorial contributions to the etiology of spontaneous hemorrhagic necrosis of the central nervous system of fetal hamsters. (1978) (3)
- Experimental cocklebur (Xanthium strumarium) intoxication in calves. (1992) (3)
- Nutritional muscular dystrophy in lambs--morphologic and electrophoretic studies on preparations of fetal and juvenile muscle. (1962) (3)
- Thermopsis montana-induced myopathy in calves. (1989) (3)
- Plant metabolites that are teratogenic in offspring and toxic in the dam (1983) (3)
- Investigation of maternal and embryo/fetal toxicity of Ephedra viridis and Ephedra nevadensis in sheep and cattle. (1989) (3)
- INFLUENCE OF CULTURE CONDITIONS ON UPTAKE AND DISTRIBUTION OF MOLYBDENUM IN AZOTOBACTER VINELANDII (1957) (2)
- THE CO2 CONTENT AS A BASIS FOR DISTINGUISHING HEATED FROM UNHEATED MILK (1920) (2)
- MULTIPLE CONGENITAL CONTRACTURES (MCC) AND CLEFT PALATE INDUCED IN GOATS BY INGESTION REDUCTION IN FETAL MOVEMENT AS THE PROBABLE CAUSE OF PIPERIDINE ALKALOID-CONTAINING PLANTS: (1990) (2)
- Proceedings: Effects of alkaloids of Veratrum californicum on developing embryos. (1973) (2)
- Natural toxins : toxicology, chemistry, and safety, 1992 : symposium on natural toxins (1992) (1)
- EXTRACELLULAR ANTIGENS OF NOCARDIA ASTEROIDES. II. FRACTIONATION AND CHEMICAL CHARACTERIZATION. (1965) (1)
- BACKGROUND DOCUMENT FOR THE FIFRA SCIENTIFIC ADVISORY PANEL ON MAMMALIAN TOXICITY ASSESSMENT GUIDANCE FOR PROTEIN PLANT-PESTICIDES (2000) (1)
- Some pharmacologic effects of Veratrum alkaloids in sheep and goats. (1966) (1)
- Pathophysiologic effects of an aqueous extract of black walnut (Juglans nigra) when administered via nasogastric tube to the horse. (1992) (1)
- Mr. Couch and Elder Roberts (1996) (0)
- Congenital Malformations in Calves (0)
- Spectrophotometric Determination of p-Alanylhistidine Peptides in Ox-Muscle Extract (2005) (0)
- The internal structure and composition of siliceous urinary calculi of bovine origin. (1960) (0)
- A surgical technique useful in experimental urolithiasis studies. (1962) (0)
- Deformed Calves From Poisonous Plants (1983) (0)
- Inhibition of limb chondrogenesis by a alkaloid: Temporal specificity and (1985) (0)
- Use of Plant Toxin Information in Management Decisions (2019) (0)
- Incorporation of Phosphorus-32 into Urinary Concretions forming on Zinc Implants in Rat Bladders (1961) (0)
- News Announcement (2008) (0)
- DISTRIBUTION OF MOLYBDENUM " IN CELL-FREE PREPARATIONS OF AZOTOBACTER VINELANDII 1 (2003) (0)
- The Hemlocks: Poison-hemlock (Conium maculatum) and Waterhemlock (Cicuta spp.) (2019) (0)
- Journal of Natural Toxins: A Journal for Research and Investigation on Toxins of Natural Origin (1992) (0)
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