Publications

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[effect of certain neural poisons on regeneration of the tail in tadpoles of xenopus laevis. ii. caffeine]. 195513251298
nitrogen excretion in the tadpoles of xenopus laevis daudin. 195513276332
the spectral absorption of the photopigment of xenopus laevis measured in single rods. 195513278918
the influence of parathyroid hormone upon bone formation in xenopus laevis. 195513281617
the influence of oestrogen upon bone formation in xenopus laevis. 195513281618
vascularization of respiratory surfaces in leiopelma hochstetteri fitzinger and xenopus laevis (daudin). 195513301204
gonadotrophic action of corticosteroids in xenopus laevis and its isolated ovary. 195514370197
[large intraretinal vesicle (retinal rosette) in xenopus laevis daud larva (anura, aglossa)]. 195514376902
breeding of sex-reversed males of xenopus laevis daudin. 195514384905
[effect of decerebration and on resection of the spinal cord on regeneration in xenopus laevis embryos and tadpoles]. 195514391420
[further studies on effect of the nervous system on growth and regeneration in xenopus laevis before and after metamorphosis]. 195514391421
the nursery requirements of xenopus laevis. 195514354492
visual pigments and vitamins a of the clawed toad, xenopus laevis. 195514356190
[effect of the spinal cord on regeneration of the tail in tadpole xenopus laevis]. 195414365862
[effect of certain neural poisons on regeneration of the tail in tadpole xenopus laevis. i. sodium bromide]. 195414365863
[effect of separation of the telencephalon from the rest of the brain on regeneration of the tail in tadpole xenopus laevis]. 195414365864
[endolymphatic sac in xenopus laevis daud]. 195414365866
stimulation of the secretory glands of the skin of the south african frog (xenopus laevis). 195413151103
[biological effect of depth of 180 kev and 31 mev roentgen rays on xenopus laevis]. 195413154879
[free globular pigment cells in the cerebral ventricles of xenopus laevis larva]. 195413179783
the visual sensitivity of the toad xenopus laevis. 195413192764
[abnormalities of adult xenopus laevis daud, following roentgen irradiation in embryonic stage]. 195413195925
[effect of excision of the telencephalon on regeneration rate in the tail in xenopus laevis tadpoles]. 195413210513
[gonad and adrenal histochemistry in xenopus laevis daud. in rest and following administration of chorionic gonadotropins]. 195413210519
[pregnancy reactions in galli-mainini test with xenopus laevis]. 195413145061
biological assay of pituitary, serum and chorionic gonadotrophins and of adrenaline using male xenopus laevis. 195413145761
[trials of the galli-mainini pregnancy test on the xenopus laevis]. 195313150717
[artificial insemination of xenopus laevis without sacrifice of the male generator]. 195313060311
breeding of xenopus laevis in captivity; evidence for the need to exchange tank water for tadpole husbandry on grounds of hygiene and mineral replacement. 195313076633
comparison of xenopus laevis and rana nigromaculata as test animals for the determination of pregnancy. 195313096903
excitement darkening and the effect of adrenaline on the melanophores of xenopus laevis. 195313104061
[total inversion of sex in xenopus laevis daud, following treatment with estradiol benzoate administered during larval stage]. 195313127229
[regeneration of the tail of tadpole xenopus laevis]. 195313173691
[further studies on regeneration of the tail of tadpole xenopus laevis]. 195313173712
[involution of the thymus gland of amphibia in aging. i. volumetric determination of the thymus of the claw frog, xenopus laevis daudin]. 195212976719
insufficiency of light as a cause of partial neoteny in xenopus laevis. 195212985174
the use of xenopus laevis, bufo bufo, and rana esculenta as test animals for gonadotrophic hormones. v. experience with the gali-mainini spermiation reaction as a routine test for pregnancy diagnosis and quantitative assay of chorionic gonadotrophin. 195212985195
conditions modifying the release of spermatozoa in male xenopus laevis in response to chorionic gonadotrophin. 195213014258
melanophore reaction and adrenocorticotrophic hormone. iii. the use of tadpoles of xenopus laevis as test animals for the assay of melanophore hormone. 195213016141
routine pregnancy diagnosis and quantitative estimation of chorionic gonadotropin using female xenopus laevis. 195214928104
[periodicity of reproduction in xenopus laevis daudin and its importance for investigation of environmental damages of the endocrine system]. 195214936958
the use of xenopus laevis, bufo bufo, and rana esculenta as test animals for gonadotrophic hormones. iii. quantitative investigations on the sensitivity of the animals to chorionic gonadotrophin. 195114810455
[breeding and use of xenopus laevis in pregnancy tests]. 195114827239
the use of xenopus laevis, bufo bufo, and rana esculenta as test animals for gonadotrophic hormones. iv. comparative investigations on the pregnancy reactions of galli mainini and friedman. 195114829216
[possibility of definite pregnancy diagnosis with xenopus laevis]. 195114836869
[reproduction and care of xenopus laevis]. 195114857594
[pregnancy test with xenopus laevis]. 195114866924
new lateral line sensory organs in xenopus laevis daudin. 195114875129
[considerations on the habits of xenopus laevis victorianus ahl]. 195114878273
[extent and limits of the regenerative power of the extremities in xenopus laevis daudin after metamorphosis]. 195114887140
the spectral sensitivity of the toad xenopus laevis. 195114898528
[the reactive sensitivity of xenopus laevis to the chorionic gonadotrophin in different seasons]. 195114924299
[experimental parthenogenesis in xenopus laevis]. 195114926145
an outbreak of red-leg disease in xenopus laevis controlled with penicillin g. 195015400109
the use of xenopus laevis bufo bufo, and rana esculenta as test animals for gonadotrophic hormones; biology, anatomy and handling of the animals. 195015425305
[the dependability of the biological diagnosis of pregnancy by means of xenopus laevis]. 195015426075
the use of xenopus laevis, bufo bufo and rana esculenta as test animals for gonadotrophic hormones; survey of previous investigations. 195015432050
the ossification process in the long bones of xenopus laevis. 195014776520
the effect of thyroid hormone on the ossification of the femur in xenopus laevis tadpoles. 195014776521
[effect of colchicine on tadpoles of xenopus laevis]. 195014812697
rickets and osteoporosis in xenopus laevis. 195014824374
finnish experience of the care and use of the clawed frog (xenopus laevis daudin) in the diagnosis of pregnancy. 194915407269
[not available]. 194915397418
use of xenopus laevis in testing for pregnancy; analysis of 1100 tests. 194918114461
hints in the care of xenopus laevis. 194918138301
xenopus laevis. 194918210578
some improvements in the keeping and rearing of xenopus laevis. 194918124543
hormonal studies in xenopus laevis daudin. 194918124957
[not available]. 194818891702
the morphology of the pituitary gland of the south african clawed toad, xenopus laevis daudin. 194818099911
bio-assay of calorigenic substances using tadpoles of xenopus laevis. 194818100248
the south african frog xenopus laevis as a test object in hormone analyses. 194818881177
report on breeding success with xenopus laevis daudin. 194818885271
diagnosis of pregnancy in the xenopus laevis frog. 194818894470
breeding success in xenopus laevis daudin. 194818916776
the diagnosis of hydatidiform mole by gonadotropic hormone assay using the south african frog, xenopus laevis. 194720249853
breeding, rearing and care of the south african clawed frog (xenopus laevis). 194720286613
the reaction of the male south african clawed frog (xenopus laevis) to gonadotropins. 194720294408
successful breeding of xenopus laevis, the south african clawed toad-frog. 194720238727
the xenopus laevis pregnancy test. 194620245990
comparison of certain cardiac glycosides on xenopus laevis. 194620282013
xenopus laevis pregnancy test; report of a series with a small number of frogs. 194621019972
the use of the south african frog (xenopus laevis) in the diagnosis of pregnancy. 194620987513
frog test (xenopus laevis) for pregnancy. 194620999804
a report on the use of the african clawed frog (xenopus laevis daudin) for early diagnosis of pregnancy. 194621002326
the normal stages in the development of the south african clawed toad, xenopus laevis. 194521003320
a brief survey of the biological pregnancy tests; with particular reference to the xenopus laevis toad test. 194520280126
possible use of the batracian xenopus laevis in the control of mosquito larvae; various interactions to be expected. 194521015076
the topography and histology of the parathyroid glandules in xenopus laevis. 193317104462
the endocrine factors concerned in the control of the ovarian cycle: xenopus laevis as a test animal. 193316745137
on the masticatory and hyoid muscles of larvae of xenopus laevis. 193017104267
developing antibodies from cholinesterase derived from prokaryotic expression and testing their feasibility for detecting immunogen content in daphnia magna.to yield cholinesterase (che) from prokaryotic expression, the che gene that belongs to daphnia magna was amplified by reverse transcription-polymerase chain reaction (rt-pcr) using forward primer 5'-cccyggngcsat gatgtg-3' and reverse primer 5'-gyaagttrgcccaatatct-3'. to express the gene, one sequence of the amplified dna, which was able to encode a putative protein containing two conserved carboxylesterase domains, was connected to the prokaryotic expression vector pet-29a(+). the recombinant v ...026834012
characterization of the target of ivermectin, the glutamate-gated chloride channel, from anopheles gambiae.the use of insecticide-treated nets and indoor residual insecticides targeting adult mosquito vectors is a key element in malaria control programs. however, mosquito resistance to the insecticides used in these applications threatens malaria control efforts. recently, the mass drug administration of ivermectin (ivm) has been shown to kill anopheles gambiae mosquitoes and disrupt plasmodium falciparum transmission in the field. we cloned the molecular target of ivm from a. gambiae, the glutamate- ...025994631
determination of alkali-sensing parts of the insulin receptor-related receptor using the bioinformatic approach.irr (insulin receptor-related receptor) is a receptor tyrosine kinase belonging to the insulin receptor family, which also includes insulin receptor and igf-ir receptor. we have previously shown that irr is activated by extracellular fluid with ph > 7.9 and regulates excess alkali excretion in the body. we performed a bioinformatic analysis of the ph-sensitive potential of all three members of the insulin receptor family of various animal species (from frog to man) and their chimeras with swappi ...026085948
molecular phylogeny of pseudocapillaroides xenopi (moravec et cosgrov 1982) and development of a quantitative pcr assay for its detection in aquarium sediment.we used high-fidelity pcr to amplify a portion of the small ribosomal subunit (18s rrna) of pseudocapillaroides xenopi, a nematode that parasitizes the skin of xenopus laevis. the 1113-bp amplicon was cloned, sequenced, and aligned with sequences from 22 other nematodes in the order trichocephalida; caenorhabditis elegans was used as the outgroup. maximum-likelihood and bayesian inference phylogenetic analyses clustered p. xenopi in a clade containing only members of the genus capillaria. our an ...025650974
agr genes, missing in amniotes, are involved in the body appendages regeneration in frog tadpoles.previous studies have shown that agr genes, which encode thioredoxin domain-containing secreted proteins, play a critical role in limb regeneration in salamanders. to determine the evolutionary conservation of agr function, it is important to examine whether agrs play a similar role in species with a different type of regeneration. here, we refined the phylogeny of agrs, revealing three subfamilies: ag1, agr2 and agr3. importantly, we established that ag1 was lost in higher vertebrates, which co ...023412115
spemann-mangold grafts.in 1924, hans spemann and hilde mangold (née pröscholdt) published their famous work describing the transplantation of dorsal blastopore lip of one newt gastrula embryo onto the ventral side of a host embryo at the same stage. they performed these grafts using two newt species with different pigmentation (triturus taeniatus and triturus cristatus) to follow the fate of the grafted tissue. these experiments resulted in the development of conjoined twins attached through their belly. because of th ...029321278
retinoic acid promotes stem cell differentiation and embryonic development by transcriptionally activating cftr.retinoic acid (ra) plays a pivotal role in many cellular processes; however, the signaling mechanisms mediating the effect of ra are not fully understood. here, we show that ra transcriptionally upregulates cystic fibrosis transmembrane conductance regulator (cftr) by promoting the direct binding of its receptor rarĪ± to cftr promoter in mouse spermatogonia and embryonic stem (es) cells. the ra/cftr pathway is involved in the differentiation of spermatogonia and organogenesis during the embryo de ...029326073
bisphenol f disrupts thyroid hormone signaling and postembryonic development in xenopus laevis.the safety of bisphenol a (bpa) alternatives has attracted much attention due to their wide use. in this study, we investigated the effects of bisphenol f (bpf), an alternative to bpa, on thyroid hormone (th) signaling and postembryonic development in vertebrates using t3-induced and spontaneous xenopus metamorphosis as models. we found that in the t3-induced metamorphosis assay, higher concentrations of bpf (100-10000 nm) antagonized t3-induced th-response gene transcription and morphological c ...029323886
autocatalytic microtubule nucleation determines the size and mass of xenopus laevis egg extract spindles.regulation of size and growth is a fundamental problem in biology. a prominent example is the formation of the mitotic spindle, where protein concentration gradients around chromosomes are thought to regulate spindle growth by controlling microtubule nucleation. previous evidence suggests that microtubules nucleate throughout the spindle structure. however, the mechanisms underlying microtubule nucleation and its spatial regulation are still unclear. here, we developed an assay based on laser ab ...029323637
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