126
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Ducasse A, Galichet E, Mathot E, Favre F, Segal A. [Emergencies in ophthalmology. Epidemiologic aspects in 3 months]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1988; 88:1011-6. [PMID: 3250770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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127
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Mathot E, Segal A, Ameline B, Clement C, Ducasse A. [Evaluation of carotid status by the Doppler effect in retinal central vein occlusions. Our 35 cases]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1988; 88:1069-70, 1072. [PMID: 3074882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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128
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Ducasse A, Segal A, Mathot E, Favre F, Aigron JP. [The optic papilla. Morphological aspects (seen in 300 angiographies)]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1988; 88:437-41. [PMID: 3214925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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129
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Benso L, Guidetti Morisio L, Pastorin L, Vista N, Rota A, Orrù D, Gambotto S, Barbaglia M, Segal A, Callipari D. [The sitting height of children in Turin. Males and females from 3 to 11 years of age]. Minerva Pediatr 1988; 40:133-9. [PMID: 3173267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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130
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Ducasse A, Segal A, Favre F, Charliat G, Pluot M. [Achromic melanoma of the limbus (apropos of a case)]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1988; 88:397-8. [PMID: 3214919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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131
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Favre F, Segal A, Mathot E, Pennaforte JL, Ducasse A. [A case of sarcoidosis manifested by acute uveitis]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1988; 88:407-10. [PMID: 3214920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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132
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Tinkelman D, Falliers C, Gross G, Segal A, Southern L, Welch M, Yeates H, Gorder J, Garcia J. 352 Triamcinolone acetonide (TA) nasal aerosol in the treatment of seasonal allergic rhinitis (SAR). J Allergy Clin Immunol 1988. [DOI: 10.1016/0091-6749(88)90586-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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133
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Solomon JJ, Mukai F, Fedyk J, Segal A. Reactions of propylene oxide with 2'-deoxynucleosides and in vitro with calf thymus DNA. Chem Biol Interact 1988; 67:275-94. [PMID: 3191538 DOI: 10.1016/0009-2797(88)90064-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Propylene oxide (PO) is a direct-acting mutagen and rodent carcinogen. We have studied how PO modifies 2'-deoxynucleosides at pH 7.0-7.5 and 37 degrees C for 10 h. PO reacts as an SN2 alkylating agent by forming the following 2-hydroxypropyl (HP) adducts: N6-HP-dAdo (7% yield), 7-HP-Gua (37%) and 3-HP-dThd (4%). Alkylation at N-3 of dCyd resulted in conversion of the adjacent exocyclic imino group at C-4 to an oxygen (hydrolytic deamination) with the formation of a dUrd adduct, 3-HP-dUrd (14%). Ultraviolet spectroscopy and mass spectrometry were used for the structural determination of these adducts. Confirmation of the unexpected 3-HP-dUrd adduct was provided by an accurate mass measurement technique where diagnostic ions in the mass spectra of 3-HP-dUrd were measured to within 0.0005 atomic mass units of the predicted mass. PO was reacted in vitro with calf thymus DNA (pH 7.0-7.5, 37 degrees C, 10 h) and yielded N6-HP-dAdo (1 nmol/mg DNA), 3-HP-Ade (14 nmol/mg DNA), 7-HP-Gua (133 nmol/mg DNA) and 3-HP-dUrd (13 nmol/mg DNA). A mechanism for the hydrolytic deamination of 3-HP-dCyd to 3-HP-dUrd involving the OH on the HP side chain is proposed. This cytosine to uracil conversion may play a role in the mutagenic and carcinogenic activity of this epoxide.
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134
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Benso L, Segal A, Brescia P, Cavallo F, Conrieri M, Pastorin L, Vista N, Callipari D. [Use of the Child Auxopathology Center at the University of Turin and the organization of health services]. Minerva Pediatr 1987; 39:1127-34. [PMID: 3451068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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135
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Segal A, Mathot E, Favre F, Gross A, Ducasse A. [Diabetic retinopathy and pregnancy]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1987; 87:1145-6, 1151-2. [PMID: 3449289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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136
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Ducasse A, Mathot E, Segal A, Favre F, Burette A. [Epidemiologic aspects of acute glaucoma crisis. Study carried out at the CHR of Reims]. OPHTALMOLOGIE : ORGANE DE LA SOCIETE FRANCAISE D'OPHTALMOLOGIE 1987; 1:533-5. [PMID: 3153936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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137
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Mathot E, Segal A, Burette A, Ducasse A. [Developmental aspects of acute angle-closure glaucoma]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1987; 87:1101-6. [PMID: 3449283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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138
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Ducasse A, Segal A, Jouhaud F, Mathot E, Roger N. [Retinal detachments. Etiological and epidemiological aspects]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1987; 87:885-8. [PMID: 3427751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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139
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Mathot E, Segal A, Favre F, Roger N, Ducasse A. [Paralysis of the VI disclosing sphenoidal sinusitis]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1987; 87:933-4. [PMID: 3427759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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140
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Segal A, Favre F, Mathot E, Jouhaud F, Ducasse A. [Clinical and therapeutic aspects of retinal vein occlusion]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1987; 87:951-4. [PMID: 3427763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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141
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Segal A, Seidman I, Melchionne S. Induction of thymic lymphomas and squamous cell carcinomas following topic application of isopropyl methanesulfonate to female Hsd:(ICR)BR mice. Cancer Res 1987; 47:3402-5. [PMID: 3034413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The goal of these experiments in female Hsd:(ICR)Br mice was to determine whether the direct-acting SN1 alkylating carcinogen isopropyl methanesulfonate (IMS) is carcinogenic and to compare its effects with those of the direct-acting SN2 methyl homologue, methyl methanesulfonate (MMS). The compounds were administered by topical application and s.c. injection. Analysis at the 288th day of mice receiving s.c. injections of IMS and MMS was the subject of a previous report (A. Segal et al., Proc. Soc. Exp. Biol. Med., 183: 132-135, 1986). The s.c. and topical application experiments were terminated at the 450th day and the final results are reported in this paper. In mice treated by s.c. injection with IMS, thymic lymphomas were observed in at least 20 of 32 mice, the first at the 40th day, and neoplasms were not observed at the injection site. Of the 30 MMS-treated mice, 11 developed sarcomas at the injection site and one thymic lymphoma was observed. In mice treated topically with IMS, thymic lymphomas were observed in 20 of 30 treated mice, the first at the 102nd day, and squamous cell carcinomas at the injection site were observed in 9 mice. Neither squamous cell carcinomas nor thymic lymphomas were observed in 30 mice following topical application of MMS. The direct-acting SN2 aklylating carcinogen beta-propiolactone was also administered by topical application. At the 450th day, at the same dose used for MMS (40 mumol/application), papillomas of the skin were observed in 25 of 30 treated mice, squamous cell carcinomas of the skin were seen in 17 mice, and one thymic lymphoma was observed. The results suggest that the rapid induction of thymomas by IMS may be related to its ability to alkylate exocyclic oxygen atoms in DNA of hemopoietic cells and also to a sensitivity of these cells to such lesions.
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142
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Ducasse A, Segal A, Jouhaud F, Mathot E, Roger N. [Retinal arterial occlusion. Etiologic aspects and course of the disease]. OPHTALMOLOGIE : ORGANE DE LA SOCIETE FRANCAISE D'OPHTALMOLOGIE 1987; 1:335-8. [PMID: 3153886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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143
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Ducasse A, Segal A, Jouhaud F, Burette A. [Retinal detachment of traumatic origin. Functional results in relation to the etiology and type of treatment]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1987; 87:807-8, 811-2. [PMID: 3664894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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144
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Segal A, Fedyk J, Melchionne S, Seidman I. The isolation and characterization of 2-carboxyethyl adducts following in vitro reaction of acrylic acid with calf thymus DNA and bioassay of acrylic acid in female Hsd:(ICR)Br mice. Chem Biol Interact 1987; 61:189-97. [PMID: 3829142 DOI: 10.1016/0009-2797(87)90039-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Reaction of acrylic acid (AA) at pH 7.0 and 37 degrees C for 40 days with 2'-deoxyadenosine (dAdo), 2'-deoxycytidine (dCyd), 2'-deoxyguanosine (dGuo) and thymidine (dThd) resulted in the formation of 2-carboxyethyl (CE) adducts via Michael addition. The alkylated 2'-deoxynucleoside adducts isolated (percent yield after 40 days) were 1-CE-dAdo (5%), N6-CE-dAdo (11%) (via Dimroth rearrangement of 1-CE-dAdo), 3-CE-dCyd (7.5%), 7-CE-Gua (4%), 7,9-bis-CE-Gua (0.9%) (formed by reaction of AA with depurinated 7-CE-Gua during the course of the reaction) and 3-CE-dThd (0.5%). The products isolated following in vitro reaction of AA with calf thymus DNA at pH 7.0 and 37 degrees C for 40 days were (nmol/mg DNA) 1-CE-Ade (9.9), N6-CE-Ade (8.2), 7-CE-Gua (7.2) and 3-CE-Thy (1.9). Compound 3-CE-Cyt was not detected. Thus the adducts formed following in vitro reaction of AA with DNA are identical to those formed by in vitro reaction of the carcinogen beta-propiolactone (BPL) with DNA as reported in an earlier paper. Structures were assigned on the basis of identical UV spectra, Rf values on paper chromatograms and Rt values on HPLC as marker compounds prepared from reactions of BPL with 2'-deoxynucleosides and 2'-deoxynucleotides-5'-monophosphoric acids. AA was assayed for carcinogenic activity by s.c. injection (20 mumol, once a week for 52 weeks) in female Hsd: (ICR)Br mice. Two mice with sarcomas at the site of application were observed out of 30 mice. Malignancies were not observed in solvent and no-treatment controls. The bioassay results reported in this paper and elsewhere in the same strain of mice suggest that AA is a weak carcinogen in female Hsd:(ICR)Br mice.
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145
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Roger N, Jouhaud F, Segal A, Ducasse A. [Etiology of uveitis. Results]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1987; 87:155-7. [PMID: 3608020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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146
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Segal A, Marston L. Maps and keys--world involuntary migration. MIGRATION WORLD MAGAZINE 1987; 15:17-21. [PMID: 12314894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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147
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Segal A, Ducasse A, Mathot E, Jouhaud F. [Iris metastasis from cancer of the esophagus]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1987; 87:137-9. [PMID: 3608017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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148
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Ducasse A, Segal A, Jouhaud F, Desphieux JL, Wuithier P. [Benign tumor of sinus origin with intraorbital development. Apropos of a case]. BULLETIN DES SOCIETES D'OPHTALMOLOGIE DE FRANCE 1987; 87:141-2. [PMID: 3608018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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149
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Benso L, La Maestra L, Conrieri M, Barbaglia M, Segal A, Lucchiari P. [Age of onset of puberty in Turin males. II]. Minerva Pediatr 1986; 38:1079-81. [PMID: 3807854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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150
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Benso L, Conrieri M, La Maestra L, Barbaglia M, Segal A, Lucchiari P. [Age of onset of puberty in Turin females. I]. Minerva Pediatr 1986; 38:1077-8. [PMID: 3807853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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