What's the difference between alum and astringent?

Alum


Definition:

  • (n.) A double sulphate formed of aluminium and some other element (esp. an alkali metal) or of aluminium. It has twenty-four molecules of water of crystallization.
  • (v. t.) To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.

Example Sentences:

  • (1) Although alum adsorbed allergen could induce IgE synthesis in mice primed with liposome entrapped allergen the increase in serum specific IgE levels was lower than the animals primed and challenged with alum adsorbed allergen.
  • (2) Effective adjuvanticity as measured by the titre of the anti-peptide or anti-protein response in mice varied in the order: Algammulin, Montanide ISA 50 greater than or equal to Freund's adjuvant, Montanide ISA 708, 721, 70 much greater than alum, Squalene Arlacel greater than SAF-1.
  • (3) IgE levels in nude mice were estimated by the one-step single radial radiodiffusion method antisera prepared by immunization of guinea pigs with an IgE-rich fraction obtained from sera of normal mice infected with Nippostrongylus brasiliensis and immunized with DNP-ovalbumin in alum gel.
  • (4) Over 90% of the anti-OVA antibodies were of the IgGl isotype with both adjuvants; OVA in alum induced slightly more IgGl anti-OVA antibodies than cFA.
  • (5) Sections are brought to water, stained in Delafield's alum hematoxylin for 10 minutes, washed in tap water for 10 minutes, counterstained in 1% Procion brillant orange M-GS for 15 minutes and washed in distilled water for 10 minutes.
  • (6) The antibody responses of animals immunised with keyhole limpet hemocyanin (KLH) in Freund's Incomplete Adjuvant (FIA), diethylaminoethyl dextran (DEAE-dextran) and aluminium hydroxide (alum) were compared with the response to antigen administered in the absence of adjuvants.
  • (7) Wash thoroughly in water and place in 4% iron alum solution for two hours.
  • (8) The stability of ragweed extracts as measured by Antigen E content is markedly enhanced with little loss after 15 month storage at 4 degrees C, when the extract is prepared as an alum precipitated suspension.
  • (9) The choice of the carrier seemed to play an important role for both the level and maintenance of the secondary IgG response, attained as a consequence of a booster immunization with TT-alum.
  • (10) Six commercially available clostridial vaccines comprising one oil-emulsion, two alum-precipitated and three aluminum hydroxide adjuvanted preparations, each containing between two and seven antigenic components, were administered to groups of 10 rabbits and eight sheep in accordance with manufacturers' recommendations.
  • (11) So those undesirable gastric mucosa side effects that can be observed or presumed by the intake of NaF and CaF2 + alum are presumably neglibile.
  • (12) We reported previously that CBA mice pretreated with dinitrophenyl-Bordetella pertussis (DNP-BP) conjugates exhibited sharply decreased anti-DNP IgE, and increased IgG2a antibodies following immunization with DNP-ovalbumin (DNP-OA) in alum.
  • (13) An experimental review of the Feulgen and gallocyanine-chrome-alum stains for quantitative cytophotometry of DNA in tissue sections yielded information on the preparation and staining of tissue for quantitative absorbance microspectrophotometry.
  • (14) Alum, due to its safety and efficacy remains the drug of first choice for persistent vesical hematuria.
  • (15) Antibodies to the preparation were induced in rabbits by using alum as an adjuvant.
  • (16) Prior inoculation of mice with alum-adsorbed anti-idiotype potentiated the immune response to a subsequent inoculation with either native HBsAg particles or with a synthetic HBsAg peptide.
  • (17) Genetically modified M (pre-S2+S; P31) protein (M-P31c) particles were formulated into a vaccine (TGP-943) through adsorption on to an alum adjuvant.
  • (18) Sequential treatment with 5 X Denhardt's solution followed by gelatin-chrome alum resulted in enhanced specificity of labelling and excellent chromosome morphology, as well as reduced levels of background.
  • (19) Despite positive staining reactions with the presumptive neurosecretory stains, paraldehyde-fuchsin and chrome-alum-hematoxylin, ultrastructurally these glands exhibit many non-neural characteristics.
  • (20) Primary immunization with alum prepared using AlK(SO4)2 and adjuvant enhanced IgE production in the guinea pig.

Astringent


Definition:

  • (a.) Drawing together the tissues; binding; contracting; -- opposed to laxative; as, astringent medicines; a butter and astringent taste; astringent fruit.
  • (a.) Stern; austere; as, an astringent type of virtue.
  • (n.) A medicine or other substance that produces contraction in the soft organic textures, and checks discharges of blood, mucus, etc.

Example Sentences:

  • (1) The mouthwash study employed a 0.2% chlorhexidine gluconate solution, a 0.5% astringent solution and a control mouthwash.
  • (2) According to preference, a special astringent cream may be a suitable alternative to cotton inner gloves.
  • (3) There also appeared to be much greater scope for the use of astringents and effective preventative measures in addition to aural toilet.
  • (4) Other less astringent compounds (gallic and tartaric acids) had only slight effects on Isc.
  • (5) Electrophysiological recordings were made here from the whole chorda tympani nerve in gerbil to understand the interactive effect of astringent-tasting molecules with a broad spectrum of tastants including mono- and divalent salts, bitter compounds, acids, and sweeteners.
  • (6) However, aluminum chloride showed pronounced astringency and was the only compound to bring about rapid resolution of the signs and symptoms of athlete's foot in open-ended clinical trials.
  • (7) Their interactions with proteins, polysaccharides, and the alkaloid caffeine are discussed at the molecular level, and these fundamental properties are related to the quality of astringency that polyphenols possess.
  • (8) Facial moisturizers are part of the cosmetic category known as skin care products, which also includes other facial products such as astringents, toners, soaps, and bath products.
  • (9) A striking contrast was presented by France, which would not budge from an astringent and classic definition of what comprised the secular: a strict separation of religion from the state, or, for that matter, from the public domain.
  • (10) Equally effective astringent gingival deflection agents such as alum, aluminum sulfate, and aluminum chloride exert no systemic effects.
  • (11) Clays employed historically in the consumption of astringent acorns plus seven edible clays from Africa were examined in relation to the functional significance of human geophagy.
  • (12) The results indicated that washing the grain prior to cooking increased the consistency of the product and eliminated the astringency of the grain.
  • (13) The more astringent sensibility belongs, of course, to Dahl: one born of boarding-school bullying, extreme heroism in the second world war as a fighter ace and the death of a beloved child (to whom he dedicated The BFG).
  • (14) This study analyzes the therapeutic properties of the herbs they produced (such as diuretic, stimulant, narcotic, emetic, astringent), using a classification scheme based on the location of the botanical substance's effect vis-à-vis body boundaries and surfaces.
  • (15) and the aromatic, astringent 'pan' (leaves of Piper betel L.) chewed with it.
  • (16) The astringency of the drug was mainly due to proanthocyanidins with degrees of polymerization from 5-10, and these were also the astringent compounds of rhatany tea and tincture.
  • (17) While not appearing to act by the release of adrenal hormones, tannins may produce effects in a non-specific manner by their astringent properties on cell membranes thus affecting cell functions.
  • (18) Tasing panel work on these fractions shows that bitterness is predominantly associated with oligomeric procyanidins and astringency with polymeric procyanidins.
  • (19) The inhibition of some of these pathways may contribute to the astringent taste sensation.
  • (20) Yogurts with more than 5.6% protein were too firm and had an astringent flavor.