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Messner R, Prillinger H, Altmann F, Lopandic K, Wimmer K, Molnár O, Weigang F. Molecular characterization and application of random amplified polymorphic DNA analysis of Mrakia and Sterigmatomyces species. INTERNATIONAL JOURNAL OF SYSTEMATIC BACTERIOLOGY 1994; 44:694-703. [PMID: 7981099 DOI: 10.1099/00207713-44-4-694] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The qualitative and quantitative monosaccharide spectra of purified yeast cell walls revealed that there are three phylogenetically distinct lineages of sterigma-forming basidiomycetous yeasts: (i) Kurtzmanomyces and Sterigmatomyces species, which contain high levels of mannose; (ii) Tilletiopsis species, which contain glucose, galactose, and small amounts of mannose; and (iii) Fellomyces, Kockovaella, Sterigmatosporidium, and Tsuchiyaea species, which appear to be closely related on the basis of their high levels of glucose and the presence of xylose. The yeast cell wall neutral sugars of Sporobolomyces antarcticus and Sterigmatomyces aphidis were similar to those of members of the genus Tilletiopsis. However, the possibility that these taxa are conspecific was eliminated by the results of a random amplified polymorphic DNA (RAPD) analysis. The conspecificity of Mrakia frigida and Mrakia nivalis, the conspecificity of Mrakia gelida and Mrakia stokesii, and the conspecificity of Sterigmatomyces halophilus and Sterigmatomyces indicus were confirmed by RAPD analysis results. RAPD analysis was found to be a simple and highly sensitive method which can be used to differentiate species at the DNA level; it can replace nuclear DNA-nuclear DNA hybridization experiments for species identification, characterization, and delimitation.
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Kubelka V, Altmann F, Kornfeld G, März L. Structures of the N-linked oligosaccharides of the membrane glycoproteins from three lepidopteran cell lines (Sf-21, IZD-Mb-0503, Bm-N). Arch Biochem Biophys 1994; 308:148-57. [PMID: 8311447 DOI: 10.1006/abbi.1994.1021] [Citation(s) in RCA: 113] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The primary structures of the Asn-linked carbohydrate chains isolated from membrane glycoproteins of the three insect cell lines Mamestra brassicae (Mb-0503), Bombyx mori (Bm-N), and Spodoptera frugiperda (Sf-21) have been determined. Tryptic glycopeptides derived from the membrane fraction were digested with peptide-N-glycanase A. The resulting oligosaccharides were reductively aminated with 2-aminopyridine and identified by two-dimensional HPLC mapping in combination with exoglycosidase digestions. Oligomannose-type structures ranging from Man2GlcNAc2 to Man9GlcNAc2 occurred in all three cell lines. The pattern of Man5- to Man9GlcNAc2-isomers suggests an alpha-mannosidase trimming pathway very similar to that in mammalian cells. In each cell line, the small (Man2, Man3) oligosaccharides were partly fucosylated at the asparagine-linked GlcNAc residue, but distinct fucosylation patterns were observed: while only a low degree of alpha 1,3-fucosylation was detected in Sf-21 and Bm-N cells, the glycoproteins isolated from Mb-0503 cells contained 30% of alpha 1,3-fucosylated glycans, predominantly in the difucosylated form, i.e., with two fucoses linked to the same N-acetylglucosamine residue. Additionally, the following alpha 1,6-fucosylated (Bm-N cells) or difucosylated (Sf-21, Mb-0503 cells) GlcNAc-terminated structures were found: [formula: see text]
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Altmann F, Kornfeld G, Dalik T, Staudacher E, Glössl J. Processing of asparagine-linked oligosaccharides in insect cells. N-acetylglucosaminyltransferase I and II activities in cultured lepidopteran cells. Glycobiology 1993; 3:619-25. [PMID: 8130393 DOI: 10.1093/glycob/3.6.619] [Citation(s) in RCA: 126] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The levels of beta 1,2-N-acetylglucosaminyltransferase (GlcNAc-T) I and II activities in cultured cells from Bombyx mori (Bm-N), Mamestra brassicae (IZD-Mb-0503) and Spodoptera frugiperda (Sf-9 and Sf-21) were investigated. Apart from initial experiments with Man alpha-3(Man alpha 1-6)-Man beta 1-O(CH2)8COOH3 and 3H-labelled UDP-GlcNAc as substrates, GlcNAc-T I activity was measured with a non-radioactive HPLC method using pyridylaminated Man3-GlcNAc2 and Man5GlcNAc2 as acceptor oligosaccharides. It was shown by reversed-phase HPLC, exoglycosidase digestion and methylation analysis that the product obtained with Man3GlcNAc2 contained a terminal GlcNAc residue linked beta 1,2 to the alpha 1,3 arm of the acceptor. Compared to the enzyme from the human hepatoma cell line HepG2, insect cell GlcNAc-T I exhibited a much higher preference for the Man5 substrate. The GlcNAc-T I from Mb-0503 cells had apparent Km and Vmax values for pyridylaminated Man3- and Man5GlcNAc2 of 2.15 and 0.21 mM, and of 3.4 and 11.4 nmol/h/mg of cell protein, respectively. When Man5GlcNAc2 was used as the acceptor substrate, the levels of GlcNAc-T I activity in the four insect cell lines ranged between 7.5 and 14.7 nmol/h/mg of cell protein, and thus were comparable to that of HepG2 cells. Evidence is presented for the dependence of lepidopteran fucosyltransferase on the presence of terminal N-acetylglucosamine.(ABSTRACT TRUNCATED AT 250 WORDS)
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Altmann F, Tretter V, Kubelka V, Staudacher E, M�rz L, Becker WM. S12.20 Fucose in ?l-3 linkage to the N-glycan core forms an allergenic epitope that occurs in plant and in insect glycoproteins. Glycoconj J 1993. [DOI: 10.1007/bf01210054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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255
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Kubelka V, Altmann F, Staudacher E, Tretter V, März L, Hård K, Kamerling JP, Vliegenthart JF. Primary structures of the N-linked carbohydrate chains from honeybee venom phospholipase A2. EUROPEAN JOURNAL OF BIOCHEMISTRY 1993; 213:1193-204. [PMID: 8504812 DOI: 10.1111/j.1432-1033.1993.tb17870.x] [Citation(s) in RCA: 184] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The N-linked carbohydrate chains of phospholipase A2 from honeybee (Apis mellifera) were released from glycopeptides with peptide-N-glycanase A and reductively aminated with 2-aminopyridine. The fluorescent derivatives were separated by size-fractionation and reverse-phase HPLC, yielding 14 fractions. Structural analysis was accomplished by compositional and methylation analyses, by comparison of the HPLC elution patterns with reference oligosaccharides, by stepwise exoglycosidase digestions which were monitored by HPLC, and, where necessary, by 500-MHz 1H-NMR spectroscopy. Ten oligosaccharides consisted of mannose, N-acetylglucosamine and fucose alpha 1-6 and/or alpha 1-3 linked to the innermost N-acetylglucosamine. Four compounds, which comprised 10% of the oligosaccharide pool from phospholipase A2, contained a rarely found terminal element with N-acetylgalactosamine. The structures of the 14 N-glycans from honeybee phospholipase A2 can be arranged into the following three series: [formula: see text]
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Tretter V, Altmann F, Kubelka V, März L, Becker WM. Fucose alpha 1,3-linked to the core region of glycoprotein N-glycans creates an important epitope for IgE from honeybee venom allergic individuals. Int Arch Allergy Immunol 1993; 102:259-66. [PMID: 7693094 DOI: 10.1159/000236534] [Citation(s) in RCA: 153] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The reactivity of sera from honeybee venom allergic patients with the N-glycan of phospholipase A2 was investigated using neoglycoproteins with an enzyme-linked immunosorbent assay. Of 122 sera with appreciable levels of IgE antibodies directed against bee venom as measured by radioallergosorbent test, 34 sera exhibited significant amounts of glycan-reactive IgE. These sera cross-reacted with the N-glycan from the plant glycoprotein bromelain. The interaction of IgE with the N-glycan from phospholipase could be inhibited with glycopeptides from bromelain which shares the alpha 1,3-fucosylation of the asparagine-bound N-acetylglucosamine with bee venom phospholipase. Since defucosylated bromelain glycopeptides or glycopeptides containing a Man3GlcNAc2 oligosaccharide were not recognized by most of these sera, we conclude that alpha 1,3-fucosylation of the innermost N-acetylglucosamine residue of N-glycoproteins forms an IgE-reactive determinant. This structural element is frequent in glycoproteins from plants, and it occurs also in insects. It is suspected to be one of the major causes of the broad allergenic cross-reactivity among various allergens from insects and plants.
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Spies T, Praznik W, Hofinger A, Altmann F, Nitsch E, Wutka R. The structure of the fructan sinistrin from Urginea maritima. Carbohydr Res 1992; 235:221-30. [PMID: 1473105 DOI: 10.1016/0008-6215(92)80090-n] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The structure of sinistrin from red squill (Urginea maritima) was determined by methylation analysis and 13C NMR spectroscopy, using the fructans from Pucinella peisonis and quack-grass (Agropyron repens) as reference substances. Application of the reductive cleavage method showed that, of the beta-D-fructofuranosyl residues in sinistrin, 33% were 1-linked, 19% were 6-linked, 25% were terminal, and 19% were 1,6-linked. The average dp was 31 and, of the 3.24% of alpha-D-glucopyranosyl residues, 0.54% were terminal and 2.70% were 6-substituted. The fructan of quack grass was also highly branched with a (2-->6)-linked backbone, terminal alpha-D-glucopyranosyl residues, and a dp of approximately 45. The fructan from Pucinella peisonis was slightly branched, with a dp of approximately 10 and a (2-->6)-linked backbone.
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Altmann F. Determination of amino sugars and amino acids in glycoconjugates using precolumn derivatization with o-phthalaldehyde. Anal Biochem 1992; 204:215-9. [PMID: 1381156 DOI: 10.1016/0003-2697(92)90164-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This report examines the RP-HPLC separation of o-phthalaldehyde derivatives of amino acids, amino sugars, and amino sugar alcohols using either 2-mercaptoethanol or 3-mercaptopropionic acid. A method with pmol sensitivity for the analysis of N-acetylamino sugars of glycoconjugates was elaborated. Upon hydrolysis, amino sugars are reduced with borohydride. Automated precolumn derivatization and chromatographic conditions for the resulting hexosaminitols are the same as those used for the analysis of amino acids. The method has been tested with as little as 2 micrograms of bovine fetuin, with a glycopeptide from bromelain and with an oligosaccharide after periodate oxidation.
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259
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Staudacher E, Altmann F, März L, Hård K, Kamerling JP, Vliegenthart JF. ?1?6(?1?3)-Difucosylation of the asparagine-boundN-acetylglucosamine in honeybee venom phospholipase A2. Glycoconj J 1992; 9:82-5. [PMID: 1344712 DOI: 10.1007/bf00731703] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Chymotryptic glycopeptides were prepared from a honeybee (Apis mellifica) venom phospholipase A2 (E.C. 3.1.1.4) fraction, with high affinity towards lentil (Lens culinaris) lectin. Treatment of the glycopeptide mixture with peptide-N4-(N-acetyl-beta-glucosaminyl)asparagine amidase A, followed by HPLC fractionation, yielded two oligosaccharides, which were analysed by 500 MHz 1H-NMR spectroscopy to give the following structures [formula: see text] This is the first report on a naturally occurring glycoprotein N-glycan with two fucose residues linked to the asparagine-bound N-acetylglucosamine.
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Staudacher E, Altmann F, Glössl J, März L, Schachter H, Kamerling JP, Hård K, Vliegenthart JF. GDP-fucose: beta-N-acetylglucosamine (Fuc to (Fuc alpha 1----6GlcNAc)-Asn-peptide)alpha 1----3-fucosyltransferase activity in honeybee (Apis mellifica) venom glands. The difucosylation of asparagine-bound N-acetylglucosamine. EUROPEAN JOURNAL OF BIOCHEMISTRY 1991; 199:745-51. [PMID: 1868856 DOI: 10.1111/j.1432-1033.1991.tb16179.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Incubation of honeybee (Apis mellifica) venom-gland extracts with GDP-[14C]fucose and GlcNAc beta 1----2Man alpha 1----6(GlcNAc beta 1----2Man alpha 1----3)Man beta 1----4GlcNAc beta 1----4(Fuc alpha 1----6)GlcNAc beta 1----N-Asn-peptide(NAc) gave a labeled product in 40% yield. Analysis by 500-MHz 1H-NMR spectroscopy indicated the transferred fucose-(Fuc) residue to be alpha 1----3-linked to the Asn-bound GlcNAc. Further proof was provided by one-dimensional and two-dimensional 1H-NMR analysis of the incubation mixture, after incubation with beta-N-acetylhexosaminidase. The established carbohydrate structure (formula; see text) proves the existence of a novel alpha 1----3-fucosyltransferase with the ability to effect difucosylation of the Asn-bound GlcNAc in N-glycans.
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261
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Tretter V, Altmann F, März L. Peptide-N4-(N-acetyl-beta-glucosaminyl)asparagine amidase F cannot release glycans with fucose attached alpha 1----3 to the asparagine-linked N-acetylglucosamine residue. EUROPEAN JOURNAL OF BIOCHEMISTRY 1991; 199:647-52. [PMID: 1868849 DOI: 10.1111/j.1432-1033.1991.tb16166.x] [Citation(s) in RCA: 338] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The ability of peptide-N4-(N-acetyl-beta-glucosaminyl)asparagine amidase F (PNGase F) from Flavobacterium meningosepticum and PNGase A from sweet almonds to deglycosylate N-glycopeptides and N-glycoproteins from plants was compared. Bromelain glycopeptide and horseradish peroxidase-C glycoprotein, which contain xylose linked beta 1----2 to beta-mannose and fucose linked alpha 1----3 to the innermost N-acetylglucosamine, were used as substrates. In contrast to PNGase A, the enzyme from F. meningosepticum did not act upon these substrates even at concentrations 100-fold higher than required for complete deglycosylation of commonly used standard substrates. After removal of alpha 1----3-linked fucose from the plant glycopeptide and glycoprotein by mild acid hydrolysis, they were readily degraded by PNGase F at moderate enzyme concentrations. Hence we conclude that alpha 1----3 fucosylation of the inner N-acetylglucosamine impedes the enzymatic action of PNGase F. Knowledge of this limitation of the deglycosylation potential of PNGase F may turn it from a pitfall into a useful experimental tool.
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Altmann F, Kubelka V, Staudacher E, Uhl K, März L. Characterization of the isoforms of phospholipase A2 from honeybee venom. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0020-1790(91)90099-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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263
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Altmann F, Christian R, Czerny T, Nimmich W, März L. Bacteriophage-associated glycan hydrolases specific for Escherichia coli capsular serotype K12. EUROPEAN JOURNAL OF BIOCHEMISTRY 1990; 189:307-12. [PMID: 2186906 DOI: 10.1111/j.1432-1033.1990.tb15491.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Four bacteriophages were identified, which carry glycan hydrolases specific for the Escherichia coli K12 capsular polysaccharide. All these glycanases catalyze the hydrolysis of the alpha-L-rhamnosyl-1,5-beta-3-deoxy-D-manno-2-octulosonic acid linkage as demonstrated with a special thiobarbituric acid assay procedure, which discriminates between the C5 substituted and unsubstituted 3-deoxy-D-manno-2-octulosonic acid (dOclA). This assay, together with gel filtration, 1H-NMR and 13C-NMR spectroscopy showed that depolymerization led to the dimer of the K12 repeating unit, (,5-beta-dOcl1Ap-2,3-alpha-LRhap-1,2-alpha LRhap-1,)2, as the primary degradation product. The phages (phi 12-W, phi 12-S, phi 82-W1, phi 82-W2) were tested for their ability to infect Escherichia coli strains Su65-42 (O4:K12:H-) and CDC63-57 [O139:K82(12):H1]. phi 12-W and phi 12-S, respectively, infected strain Su65-42 only, phi 82-W2 CDC63-57 only, and phi 82-W1 both bacterial strains. These distinct host specificities cannot be explained by differences in the action of the glycanases, which depolymerize the capsules of both strains.
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Altmann F, März L, Stirm S, Unger FM. Two additional bacteriophage-associated glycan hydrolases cleaving ketosidic bonds of 3-deoxy-D-manno-octulosonic acid in capsular polysaccharides of Escherichia coli. FEBS Lett 1987; 221:145-9. [PMID: 3305072 DOI: 10.1016/0014-5793(87)80369-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Two bacteriophages degrading 3-deoxy-D-manno-2-octulosonic acid-(KDO)-containing capsules of Escherichia coli strains were identified. Using modifications of the thiobarbituric acid assay, it was shown that each phage contains a glycan hydrolase activity cleaving one type of ketosidic linkage of KDO. Thus, the enzyme from phage phi 95 catalyzes the hydrolysis of beta-octulofuranosidonic linkages of the K95 glycan; and phi 1092, the alpha-octulopyranosidonic linkages of the K? antigen of E. coli LP1092. No cross-reactivity of the phage enzymes with other KDO-containing capsular polysaccharides was observed.
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Altmann F, Kwiatkowski B, Stirm S, März L, Unger FM. A bacteriophage-associated glycanase cleaving beta-pyranosidic linkages of 3-deoxy-D-manno-2-octulosonic acid (KDO). Biochem Biophys Res Commun 1986; 136:329-35. [PMID: 3707579 DOI: 10.1016/0006-291x(86)90914-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A bacteriophage growing on Escherichia coli K13, K20, and K23 strains carries a glycanase that catalyzes the hydrolytic cleavage of the beta-ketopyranosidic linkages of 3-deoxy-D-manno-2-octulosonic acid (KDO) in the respective capsular polysaccharides. The main cleavage product of the K23 polysaccharide has been identified by 1H- and 13C-n.m.r. spectroscopy as beta beta Ribfl----7 beta KDOp2----3-beta Ribfl----7KDO. Cleavage of polysaccharides containing alpha-pyranosidic, or 5-substituted beta-pyranosidic KDO is not catalyzed by the enzyme.
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Weber A, März L, Altmann F. Characteristics of the asparagine-linked oligosaccharide from honey-bee venom phospholipase A2. Evidence for the presence of terminal N-acetylglucosamine and fucose in an insect glycoprotein. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. B, COMPARATIVE BIOCHEMISTRY 1986; 83:321-4. [PMID: 3956155 DOI: 10.1016/0305-0491(86)90374-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Eighty-eight % of phospholipase A2 from honey-bee (Apis mellifica) venom is glycosylated. Its single oligosaccharide exists in several structural variants, which represent consecutive stages of the "N-glycan processing pathway". The carbohydrate carries terminal fucosyl and N-acetyl-glucosaminyl residues. This is in contrast to earlier reports which suggest the lack of respective glycosyl-transferases in insects.
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Zechner G, Altmann F. �ber blaue m�ntel in der menschlichen kn�chernen labyrinthkapsel. Eur Arch Otorhinolaryngol 1972. [DOI: 10.1007/bf00341074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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268
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Kakizaki I, Zechner G, Altmann F. The osteocytes of the human labyrinthine capsule. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1971; 94:139-50. [PMID: 4104095 DOI: 10.1001/archotol.1971.00770070375010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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269
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Kakizaki I, Altmann F. The interglobular spaces in the human labyrinthine capsule. Ann Otol Rhinol Laryngol 1970; 79:666-79. [PMID: 5426892 DOI: 10.1177/000348947007900331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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270
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Soifer N, Thompson M, Fasano A, Altmann F, Endahl G, Johnson G, Holdsworth C. Biochemical studies of otosclerosis. Inorganic constituents by neutron activation analysis. Acta Otolaryngol 1970; 69:138-42. [PMID: 5446603 DOI: 10.3109/00016487009123346] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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271
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Kornfeld M, Geller LM, Cowen D, Wolf A, Altmann F. Pathologic changes in the inner ear of audiogenic seizure-susceptible mice treated with 6-aminonicotinamide. Exp Neurol 1970; 26:17-35. [PMID: 5411022 DOI: 10.1016/0014-4886(70)90085-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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272
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Zechner G, Altmann F. Ground substance of the otic capsule. Histochemical studies. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1969; 90:418-28. [PMID: 5806067 DOI: 10.1001/archotol.1969.00770030420004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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273
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Soifer N, Altmann F, Endahl GL, Holdsworth CE, Weaver K. Biochemical studies of otosclerosis. Protein and enzymes in stapedes and cortical bone. Acta Otolaryngol 1969; 68:78-84. [PMID: 5379080 DOI: 10.3109/00016486909121545] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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274
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275
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Zechner G, Altmann F. Histological studies on the human endolymphatic duct and sac. PRACTICA OTO-RHINO-LARYNGOLOGICA 1969; 31:65-83. [PMID: 5790561 DOI: 10.1159/000274880] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The endolymphatic duct and sac was histologically studied in 190 normal and diseased temporal bones coming from 100 individuals of all age groups. A number of hitherto unknown morphological details was reported, particularly in the physiologically most active portion, the pars rugosa of the sac. The histological findings in man are in good agreement with the results of experimental studies and indicate an intensive resorptive function of this area. A marked fibrosis of the tunica propria in Menière’s disease evidently interferes with the resorption of the endolymph in this area and could therefore act as predisposing factor for the development of the attacks. The fact that in the great majority of the cases the pars rugosa is located within the bony capsule makes the chances for a successful treatment of Menière’s disease through decompression of the pars intraduralis dubious.
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Altmann F, Zechner G. The pathology and pathogenesis of endolymphatic hydrops. New investigation. ARCHIV FUR KLINISCHE UND EXPERIMENTELLE OHREN- NASEN- UND KEHLKOPFHEILKUNDE 1968; 192:1-19. [PMID: 5688254 DOI: 10.1007/bf00301488] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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277
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278
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Zechner G, Altmann F. The temporal bone in Hunter's syndrome (gargoylism). ARCHIV FUR KLINISCHE UND EXPERIMENTELLE OHREN- NASEN- UND KEHLKOPFHEILKUNDE 1968; 192:137-44. [PMID: 4238097 DOI: 10.1007/bf00404152] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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279
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Soifer N, Altmann F, Endahl GL, Holdsworth CE. Biochemical studies of otosclerosis. Enzymes and protein in normal malleus, incus, and stapes. THE JOHNS HOPKINS MEDICAL JOURNAL 1967; 120:416-9. [PMID: 6028181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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280
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Altmann F, Glasgold A, Macduff JP. The incidence of otosclerosis as related to race and sex. Ann Otol Rhinol Laryngol 1967; 76:377-92. [PMID: 6028664 DOI: 10.1177/000348946707600207] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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281
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Soifer N, Altmann F, Endahl GL, Holdsworth CE. Biochemical studies of otosclerosis: enzymes and protein in malleus and incus. Acta Otolaryngol 1967; 63:587-94. [PMID: 4292193 DOI: 10.3109/00016486709128791] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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282
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Kawamoto K, Altmann F. The atypical epithelial formations of the utricle. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1967; 85:561-71. [PMID: 4225790 DOI: 10.1001/archotol.1967.00760040563020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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283
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Altmann F, Kornfeld M. Osteogenesis imperfecta and otosclerosis: new investigations. Ann Otol Rhinol Laryngol 1967; 76:89-104. [PMID: 6021053 DOI: 10.1177/000348946707600107] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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284
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Altmann F. Books Received. Ann Otol Rhinol Laryngol 1967. [DOI: 10.1177/000348946707600127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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285
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Altmann F. Histological studies on inherited and on post-rubella deafness. ARCHIV FUR KLINISCHE UND EXPERIMENTELLE OHREN- NASEN- UND KEHLKOPFHEILKUNDE 1967; 188:571-87. [PMID: 5596362 DOI: 10.1007/bf00302316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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286
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287
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Altmann F, Kornfeld M, Shea JJ. Inner ear changes in otosclerosis. Histopathological studies. Ann Otol Rhinol Laryngol 1966; 75:5-32. [PMID: 5929517 DOI: 10.1177/000348946607500101] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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288
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Fowler EP, Altmann F. Auditory and vestibular effects of trauma to the head. THE JOURNAL OF TRAUMA 1966; 6:20-42. [PMID: 5901847 DOI: 10.1097/00005373-196601000-00002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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289
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290
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Altmann F. The finer structure of the auditory ossicles in otosclerosis. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1965; 82:569-74. [PMID: 5846562 DOI: 10.1001/archotol.1965.00760010571003] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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291
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Soifer N, Altmann F, Endahl GL, Holdsworth C. Biochemical studies of otosclerosis. 3. Lactic dehydrogenase in vein tissue. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1965; 82:510-4. [PMID: 5844989 DOI: 10.1001/archotol.1965.00760010512011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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292
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Altmann F. Postmeningitic labyrinth ossification with stapes fixation. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1965; 82:470-7. [PMID: 4954318 DOI: 10.1001/archotol.1965.00760010472004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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