What's the difference between haematin and hematin?
Haematin
Definition:
(n.) Same as Hematin.
Example Sentences:
(1) It is postulated that the linkage between the haem groups of dimeric haem and the haematin groups of dimeric haematin is essentially hydrophobic in nature.
(2) Typically, haem therapy has been given in the form of haematin--haem dissolved in alkali.
(3) Metmyoglobin was only partially re-formed by adding haematin to the precipitate produced by apomyoglobin with an antiserum of the first group, whereas complete re-formation of metmyoglobin was achieved in the presence of antisera of the second group.
(4) Haematins (hydroxyferriprotoporphyrin IX) constitute a possible receptor for antimalarial drugs such as chloroquine or quinine.
(5) The use of erythrocyte morphology as a screening test for deficient absorption of haematinics is unsatisfactory; false positive (42.8%) and false negative (41.6%) results are encountered too frequently to recommend its use.
(6) A recently published method for measuring human haemoglobin based on alkaline haematin (Zander et al., Clin.
(7) Actinomycin D, puromycin or cycloheximide prevent the activation of the enzyme by 5-aminolaevulinate but not that by haematin.
(8) The deficiency of haematinic factors appears to be largely due to poor nutrition.
(9) None of the patients received haematinics during the study period.
(10) Some other phenol compounds (caffeic acid and 4-hydroxy-3-methoxybenzoic acid) also showed inhibitory effects on the haematin- and haemoglobin-catalysed epoxidation, but salicylic acid did not.
(11) The antiporphyrogenic effect of haem arginate (even after storage for two years) in 2-allyl-2-isopropylacetamide-induced experimental porphyria of rats was equal to that of freshly prepared haematin.
(12) The distressing misdiagnosis of the cause of this anaemia is pointed out, and the consequent misuse of haematinics in the form of blood transfusion, iron and vitamin B12 is shown.
(13) The major GSH transferase was inhibited by haematin-related compounds, bile acids and a number of anthelmintics including members of the benzimidazole and phenol-based class of compounds.
(14) In females the digestion of white mice blood to haematin at 23-24 degrees lasted not over 12 hours, the digestion of blood of hamsters and man - 12 to 20 hours, of guinea pigs and reptiles - 18 to 25 hours and of white rats and pigeons - from 20 to 30 hours.
(15) The findings are discussed in relation to replacement of bone marrow by lepromatous tissue as well as possible interference in the metabolism of haematinics by M. leprae.
(16) Supplementation of haematinic therapy with these compounds is recommended.
(17) The combined injection of either haematin or 5-aminolaevulinate with cortisol does not produce an additive effect, whereas potentation is observed when tryptophan is jointly given with either the cofactor or the haem precursor.
(18) Thereafter, endosomes decreased in size as digestion proceeded and there was an increase of haematin granules.
(19) Three interrelated parenchymal perikaryal pigments were identified in the putaminal lesions of all 3 patients: a "haematin" pigment, neuromelanin and lipofuscin.
(20) During pregnancy, the women received a haematinic supplement of 500 micrograms pteroyl glutamic acid and 47 mg iron a day, and a food supplement was also given to some of the women during either pregnancy, or lactation, or both.
Hematin
Definition:
(n.) Hematoxylin.
(n.) A bluish black, amorphous substance containing iron and obtained from blood. It exists the red blood corpuscles united with globulin, and the form of hemoglobin or oxyhemoglobin gives to the blood its red color.
Example Sentences:
(1) The renal failure is thought to have resulted from the presence of circulating free hematin, formed as a result of rapid administration of such a relatively large amount.
(2) The dissociation constants KD, for ligands such as bilirubin, indocyanine green, and hematin were determined by measuring the decrease in the intrinsic fluorescence of the proteins attendant on the addition of ligand.
(3) Severe crisis were successfully treated with Hematin.
(4) In addition, further activation of the hematin-catalase response by NaN3 was depressed in the ischemic side of the hippocampus and striatum.
(5) The chemical nature, etiology and clinical features of hematin calculi are discussed.
(6) HTM incorporates Mueller-Hinton medium with additions of 15 micrograms of hematin per ml, 15 micrograms of NAD per ml, and 5 mg of yeast extract per ml as growth-promoting additives.
(7) We have also shown, through the use of these peroxidase assays and by enzyme absorption spectra, that the peroxidase activity attributed to catalase maintained at alkaline pH is a catalytic but not enzymatic activity associated with a hematin group attached to a denatured catalase monomer.
(8) We have demonstrated that the nitroxyl free radical form of the carcinogen N-hydroxy-2-acetylaminofluorene (OH-AAF) is an obligatory intermediate in the cumene hydroperoxide-hematin-induced oxidative activation of this carcinogen into 2-nitrosofluorene and N-acetoxy-2-acetylaminofluorene.
(9) However, its plasma disappearance curve was not appreciably affected by administration of hematin.
(10) A method was developed for making viable counts of Campylobacter fetus (Vibrio fetus) in tube cultures using a medium containing alkaline hematin and incubation in a carbon dioxide incubator.
(11) Heme oxygenase appeared to be the HO-1 form, an assignment based on its amino acid sequence matching the sequence of 2 peptides obtained from purified HO-1 and the immunochemical properties of the cobalt-, hematin-, and bromobenzene-induced rat liver enzyme.
(12) A statistically significant (p.001) improvement of the level of knowledge of drug prices with increasing experience was found: ampicillin, hematinics, and cough syrup prices were better known than the prices of infrequently prescribed drugs (valproic acid, MMR vaccine).
(13) Hematin binding was noncompetitive with transferase activity and did not involve the bilirubin-binding site, suggesting the existence of unique heme-binding sites on these proteins.
(14) After 2 days of hematin administration, about 5 days were required for delta-aminolevulinic acid, and 11 days for porphobilinogen to return to the concentrations that were detected before treatment.
(15) The major hydrocarbon gas products in iron, copper, or hematin catalyzed peroxidation systems were ethane or ethylene from linolenic acid, and pentane from linoleic acid and arachidonic acid.
(16) There were no statistically significant changes in electrolyte concentrations neither in preterm or prolonged pregnancy, nor in acute or chronic fetal asphyxia, in meconial and hematinic mexures samples as well as in oxytocin infusions with a medium of saline.
(17) Rickettsia quintana grew in a liquid medium consisting of a brain-heart infusion base supplemented with starch and hematin.
(18) The peroxyl radical systems employed are microsomal prostaglandin H synthase and arachidonic acid, the hematin-catalyzed decomposition of a lipid hydroperoxide, and the autoxidation of the sulfite anion.
(19) Fifty-five women with a convincing clinical history of menorrhagia associated with recognizable pelvic disease (40 women) or a confirmed coagulation disorder (15 women) were studied through one or more cycles with measurements of menstrual blood loss volume by a modified alkaline hematin method.
(20) It was shown that hematin was responsible for this P type 204 activity and that it was produced only by actively proteolytic strains when grown on a hemoglobin-containing medium.