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Szőllősi GJ, Pataki J, Virágh A, Bányai G, Boruzs K, Bíró K, Dombrádi V. Influenza Vaccination Coverage among People with Self-Reported Cardiovascular Diseases-Findings from the Hungarian Implementation of the European Health Interview Survey. Vaccines (Basel) 2024; 12:360. [PMID: 38675742 PMCID: PMC11054540 DOI: 10.3390/vaccines12040360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/19/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
Worldwide, cardiovascular diseases are the leading cause of mortality. This has significant implications for public health. Influenza, a common infectious disease, poses an increased risk for individuals with chronic conditions, such as cardiovascular diseases. However, little is known about influenza vaccination coverage in this group. This study utilized data from the Hungarian implementation of the European Health Interview Survey to assess influenza vaccination coverage and its determinants among cardiovascular respondents from 2009 to 2019. The findings reveal a downward trend in the vaccination rates over the years (from 24% to 21%), despite the availability of free vaccination in Hungary for this high-risk population. The main factors influencing low influenza vaccine uptake were identified, as follows: young age, a lower level of education, good self-perceived health status, smoking, a lower frequency of medical visits, and not suffering from respiratory diseases. Addressing these disparities necessitates targeted vaccination strategies supported by enhanced education, better access to healthcare services, and the promotion of preventive healthcare measures. Improving vaccination coverage among patients with cardiovascular diseases is imperative for reducing influenza-related morbidity and mortality. This highlights the importance of comprehensive public health interventions and healthcare provider engagement in promoting vaccination among groups at increased risk.
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Affiliation(s)
- Gergő József Szőllősi
- Coordination Center for Research in Social Sciences, Faculty of Economics and Business, University of Debrecen, 4032 Debrecen, Hungary
| | - Jenifer Pataki
- Faculty of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary; (J.P.); (A.V.)
- Doctoral School of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - Anett Virágh
- Faculty of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary; (J.P.); (A.V.)
| | - Gábor Bányai
- Institute of Health Economics and Management, Faculty of Economics and Business, University of Debrecen, 4032 Debrecen, Hungary; (G.B.); (K.B.); (K.B.)
| | - Klára Boruzs
- Institute of Health Economics and Management, Faculty of Economics and Business, University of Debrecen, 4032 Debrecen, Hungary; (G.B.); (K.B.); (K.B.)
| | - Klára Bíró
- Institute of Health Economics and Management, Faculty of Economics and Business, University of Debrecen, 4032 Debrecen, Hungary; (G.B.); (K.B.); (K.B.)
| | - Viktor Dombrádi
- Patient Safety Department, Health Services Management Training Centre, Faculty of Health and Public Administration, Semmelweis University, 1085 Budapest, Hungary;
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Pataki J, Dombrádi V, Sárváry A, Szőllősi GJ. Breast cancer screening and its associating factors among hungarian women aged 45-65: a cross-sectional study based on the European health interview surveys from 2009 to 2019. BMC Public Health 2023; 23:1679. [PMID: 37653363 PMCID: PMC10472565 DOI: 10.1186/s12889-023-16608-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 08/24/2023] [Indexed: 09/02/2023] Open
Abstract
BACKGROUND In 2020, globally 685,000 people died, and 2.3 million women were diagnosed with breast cancer. The main cause of cancer deaths among women is breast cancer, which account for 15.5% of all cancer deaths. Most of these could have been avoided with timely diagnosis. The aim of our study was to determine the proportion of breast screening participation in Hungary, and to identify possible factors that may influence breast screening attendance. METHODS Our data were gathered from the cross-sectional European Health Interview Surveys conducted in Hungary in 2009, 2014, and 2019. In terms of categorical characteristics, Pearson's chi-square test was performed to evaluate the differences between people who have attended breast screening within two years and who have only attended more than two years ago. To determine the factors that may have an impact on the uptake of screening, generalized linear model with logit link function regarding binomial probability distribution was executed. RESULTS The responses of 2626 women between the age 45-65 were included in our study. In 2009 85% (n=741), in 2014 90% (n=851) and in 2019 87% (n=699) of the respondents claimed to have ever attended a breast screening in their life. In 2009 68% (n=594), in 2014 66% (n=630) and in 2019 64% (n=515) said that they have taken part in breast screening within two years (p=0.331). From 2014 to 2019 (AOR=0.72 [0.57-0.89]) the chance of attending breast screening was decreasing. We observed that both secondary (AOR=1.97 [1.60-2.44]) and tertiary educational level (AOR=2.23 [1.67-3.00]), higher perceived income (AOR=1.54 [1.25-1.90]), and more frequent meeting with the doctor (AOR=1.77 [1.39-2.27]) and with the specialist (AOR=1.88 [1.54-2.28]) appeared as protective factors of breast screening attendance. CONCLUSIONS Our results show that the lifetime prevalence of breast screening participation is high, however the recommended biennial rate is relatively low. To increase the participation rate, various initiatives would be needed, especially for women in identified risk groups, which are lower educational level, lower perceived income, and less frequent meeting with the doctor and with the specialist.
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Affiliation(s)
- Jenifer Pataki
- Faculty of Health Sciences, University of Debrecen, Debrecen, Hungary
- Doctoral School of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - Viktor Dombrádi
- Health Services Management Training Centre, Faculty of Health and Public Administration, Semmelweis University, Budapest, Hungary
| | - Attila Sárváry
- Department of Integrative Health Sciences, Faculty of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - Gergő József Szőllősi
- Coordination Center for Research in Social Sciences, Faculty of Economics and Business, University of Debrecen, Debrecen, Hungary
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Szőllősi GJ, Minh NC, Pataki J, Santoso CM, Nagy AC, Kardos L. Influenza Vaccination Coverage and Its Predictors among Self-Reported Diabetic Patients-Findings from the Hungarian Implementation of the European Health Interview Survey. Int J Environ Res Public Health 2022; 19:16289. [PMID: 36498357 PMCID: PMC9736192 DOI: 10.3390/ijerph192316289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/27/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
In high-risk populations, such as the elderly or those with serious medical issues, for instance, people with cardiovascular diseases or diabetes, influenza can have devastating effects because it might contribute to severe complications or even death. This makes vaccination against influenza an essential component of public health. The primary objective of our research was to identify the characteristics that influenced whether an individual chose to become vaccinated against influenza, with an emphasis on whether they reported having diabetes. The data were obtained from the Hungarian implementation of the European Health Interview Surveys, which were conducted in 2009, 2014, and 2019. The total sample size was 15,874 people. To determine the variables that were related to vaccination, a multivariate logistic regression analysis that included interactions was performed. The overall vaccination coverage was 13% in 2009 and 12% in 2014 and 2019 among non-diabetic respondents; the coverage was 26% in 2009, 28% in 2014, and 25% in 2019 among diabetic respondents. Despite vaccination coverage in both groups being below the optimal level of 75%, we were able to identify factors influencing vaccination coverage. Among diabetic respondents, younger age, lower education level, sex, and co-morbidities were factors that influenced vaccination status. It is important for authorities managing healthcare and medical practitioners to be aware of the potential effects that influenza can have on diabetic patients; therefore, more efforts need to be made to increase the number of diabetic people receiving a vaccination against influenza.
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Ruzicka L, Plattner PA, Pataki J. 43. Über Steroide und Sexualhormone. (76. Mitteilung)) Herstellung eines digitaloiden Aglucons durch Oxydation des Δ20, 22
-3 β-Acetoxy-nor-allo-cholensäure-methylesters mit Selendioxyd. Helv Chim Acta 2018. [DOI: 10.1002/hlca.19420250221] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- L. Ruzicka
- Organisch-chemisches Laboratorium der Eidg. Technischen Hochschule, Zürich
| | - Pl. A. Plattner
- Organisch-chemisches Laboratorium der Eidg. Technischen Hochschule, Zürich
| | - J. Pataki
- Organisch-chemisches Laboratorium der Eidg. Technischen Hochschule, Zürich
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Kuster SP, Drews S, Green K, Blair J, Davis I, Downey J, Fowler R, Katz K, Lapinsky S, McRitchie D, Pataki J, Powis J, Rose D, Sarabia A, Simone C, Simor A, Stewart T, McGeer A. Epidemiology of influenza-associated hospitalization in adults, Toronto, 2007/8. Eur J Clin Microbiol Infect Dis 2010; 29:835-43. [PMID: 20428910 PMCID: PMC2889286 DOI: 10.1007/s10096-010-0935-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Accepted: 04/03/2010] [Indexed: 11/25/2022]
Abstract
The purpose of this investigation was to identify when diagnostic testing and empirical antiviral therapy should be considered for adult patients requiring hospitalization during influenza seasons. During the 2007/8 influenza season, six acute care hospitals in the Greater Toronto Area participated in active surveillance for laboratory-confirmed influenza requiring hospitalization. Nasopharyngeal (NP) swabs were obtained from patients presenting with acute respiratory or cardiac illness, or with febrile illness without clear non-respiratory etiology. Predictors of influenza were analyzed by multivariable logistic regression analysis and likelihoods of influenza infection in various patient groups were calculated. Two hundred and eighty of 3,917 patients were found to have influenza. Thirty-five percent of patients with influenza presented with a triage temperature >or=38.0 degrees C, 80% had respiratory symptoms in the emergency department, and 76% were >or=65 years old. Multivariable analysis revealed a triage temperature >or=38.0 degrees C (odds ratio [OR] 3.1; 95% confidence interval [CI] 2.3-4.1), the presence of respiratory symptoms (OR 1.7; 95% CI 1.2-2.4), admission diagnosis of respiratory infection (OR 1.8; 95% CI 1.3-2.4), admission diagnosis of exacerbation of chronic obstructive pulmonary disease (COPD)/asthma or respiratory failure (OR 2.3; 95% CI 1.6-3.4), and admission in peak influenza weeks (OR 4.2; 95% CI 3.1-5.7) as independent predictors of influenza. The likelihood of influenza exceeded 15% in patients with respiratory infection or exacerbation of COPD/asthma if the triage temperature was >or=38.0 degrees C or if they were admitted in the peak weeks during the influenza season. During influenza season, diagnostic testing and empiric antiviral therapy should be considered in patients requiring hospitalization if respiratory infection or exacerbation of COPD/asthma are suspected and if either the triage temperature is >or=38.0 degrees C or admission is during the weeks of peak influenza activity.
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Affiliation(s)
- S. P. Kuster
- Department of Microbiology, Room 210, Mount Sinai Hospital, 600 University Ave., Toronto, Ontario M5G 1X5 Canada
- University of Toronto, Toronto, Canada
| | - S. Drews
- University of Toronto, Toronto, Canada
- Ontario Public Health Laboratory, Toronto, Canada
| | - K. Green
- Department of Microbiology, Room 210, Mount Sinai Hospital, 600 University Ave., Toronto, Ontario M5G 1X5 Canada
| | - J. Blair
- Ontario Public Health Laboratory, Toronto, Canada
| | - I. Davis
- The Scarborough Hospital, Toronto, Canada
| | - J. Downey
- Toronto East General Hospital, Toronto, Canada
| | - R. Fowler
- University of Toronto, Toronto, Canada
- Sunnybrook Health Sciences Centre, Toronto, Canada
| | - K. Katz
- University of Toronto, Toronto, Canada
- North York General Hospital, Toronto, Canada
| | | | - D. McRitchie
- University of Toronto, Toronto, Canada
- North York General Hospital, Toronto, Canada
| | - J. Pataki
- Credit Valley Hospital, Mississauga, Canada
| | - J. Powis
- Toronto East General Hospital, Toronto, Canada
| | - D. Rose
- The Scarborough Hospital, Toronto, Canada
| | - A. Sarabia
- Credit Valley Hospital, Mississauga, Canada
| | - C. Simone
- Toronto East General Hospital, Toronto, Canada
| | - A. Simor
- University of Toronto, Toronto, Canada
- Sunnybrook Health Sciences Centre, Toronto, Canada
| | | | - A. McGeer
- Department of Microbiology, Room 210, Mount Sinai Hospital, 600 University Ave., Toronto, Ontario M5G 1X5 Canada
- University of Toronto, Toronto, Canada
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Plattner PA, Ruzieka L, Pataki J. Über Steroide und Sexualhormone. (112. Mitteilung). Über gesättigte Lactone der Digoxigenin-Reihe. Helv Chim Acta 2004. [DOI: 10.1002/hlca.660280151] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ruzieka L, Plattner PA, Pataki J. Über Steroide und Sexualhormone. (118. Mitteilung). Über die Einwirkung von N-Brom-succinimid auf Δ20,22-3β-Acetoxy-nor-allo-cholensäure-methylester. Helv Chim Acta 2004. [DOI: 10.1002/hlca.6602801188] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Plattner PA, Ruzicka L, Heusser H, Pataki J, Meier K. Über Steroide und Sexualhormone. (130. Mitteilung). Über die Synthese von 14-Oxy-Steroiden. Helv Chim Acta 2004. [DOI: 10.1002/hlca.19460290418] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Plattner PA, Ruzicka L, Heusser H, Pataki J, Meier K. Über Steroide und Sexualhormone. (131. Mitteilung) Über 14-Allo-Steroide; 5,14-Diallo-17-iso-ätiocholansäure. Helv Chim Acta 2004. [DOI: 10.1002/hlca.19460290419] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Djerassi C, Rosenkranz G, Romo J, Kaufmann S, Pataki J. Steroids. VII.1 Contribution to the Bromination of ▵4-3-Ketosteroids and a New Partial Synthesis of the Natural Estrogens. J Am Chem Soc 2002. [DOI: 10.1021/ja01166a055] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Rosenkranz G, Pataki J, Kaufmann S, Berlin J, Djerassi C. Steroids. V.1 The Synthesis of Adrenal Corticosteroids and Analogs from Allopregnan-3β-o1-20-one. J Am Chem Soc 2002. [DOI: 10.1021/ja01165a067] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pataki J, Rosenkranz G, Djerassi C. Steroidal Sapogenins. XII.1 The Configuration of the Hydroxyl Groups in Kammogenin, Yuccagenin, Lilagenin and Gitogenin. J Am Chem Soc 2002. [DOI: 10.1021/ja01155a104] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rosenkranz G, Kaufmann S, Pataki J, Djerassi C. STEROIDS. II.1 A METHOD FOR THE CONVERSION OF ALLO-STEROIDS INTO Δ4-3-KETOSTEROIDS. J Am Chem Soc 2002. [DOI: 10.1021/ja01158a531] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Djerassi C, Rosenkranz G, Romo J, Pataki J, Kaufmann S. Steroids. VIII.1,2 The Dienone—Phenol Rearrangement in the Steroid Series. Synthesis of a New Class of Estrogens. J Am Chem Soc 2002. [DOI: 10.1021/ja01166a056] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pataki J, Rosenkranz G, Djerassi C. Steroids. XXXVIII.1 Synthesis of Allopregnane-3,11,20-trione-17 α,21-diol (Dihydroallocortisone) from Allopregnan-3β-ol-11,20-dione. J Am Chem Soc 2002. [DOI: 10.1021/ja01142a022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kaufmann S, Pataki J, Rosenkranz G, Romo J, Djerassi C. Steroids. VI.1 The Wohl—Ziegler Bromination of Steroidal 1,4-Dien-3-ones. Partial Synthesis of ▵6-Dehydroestrone and Equilenin. J Am Chem Soc 2002. [DOI: 10.1021/ja01166a054] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Harvey RG, Zhang JT, Luna E, Pataki J. Synthesis of Benzo[s]picene and its Putative Carcinogenic trans-3,4-Dihydrodiol and Fjord Region anti-Diol Epoxide Metabolites. J Org Chem 1998; 63:6405-6408. [PMID: 11672279 DOI: 10.1021/jo9806613] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R. G. Harvey
- Ben May Institute, University of Chicago, Chicago, Illinois 60637
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Abstract
The mutational specificity of the syn dihydrodiol epoxide of 5-methylchrysene in the supF gene of the pSP189 vector was examined. Transversion mutations at GC pairs predominated with G --> T and G --> C changes accounting for 42 and 21% of total base change mutations. The types of mutations found reflect the previously determined chemical preference of this reactive species for reaction with deoxyguanosine residues in DNA.
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Affiliation(s)
- J E Page
- Chemistry of Carcinogenesis Laboratory, NCI Frederick Cancer Research and Development Center, MD 21702-1201, USA
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Peltonen K, Hilton BD, Pataki J, Lee H, Harvey RG, Dipple A. Spectroscopic characterization of syn-5-methylchrysene 1,2-dihydrodiol 3,4-epoxide-deoxyribonucleoside adducts. Chem Res Toxicol 1991; 4:305-10. [PMID: 1912313 DOI: 10.1021/tx00021a008] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Eight deoxyribonucleoside adducts formed from reactions of syn-5-methylchrysene 1,2-dihydrodiol 3,4-epoxide with DNA or with nucleotides were characterized spectroscopically. The adducts arose from both cis and trans opening of the epoxide ring at C4 by the amino group of either deoxyadenosine or deoxyguanosine residues. NMR data indicated that the partially saturated 1,2,3,4-ring of the hydrocarbon residue adopted a boatlike conformation, with the purine residue being disposed pseudoaxially in all adducts. The cis and trans assignments for epoxide ring opening were readily made from coupling constants. Quantitatively, cis adducts predominated over trans adducts in both DNA and nucleotide reactions. Whereas deoxyadenylic acid appeared to trap this dihydrodiol epoxide more efficiently than deoxyguanylic acid, reaction with DNA led to more extensive reaction with deoxyguanosine than with deoxyadenosine residues.
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Affiliation(s)
- K Peltonen
- Chemistry of Carcinogenesis Laboratory, Program Resources, Inc., NCI-Frederick Cancer Research and Development Center, Maryland 21702
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Bigger CA, Flickinger DJ, Strandberg J, Pataki J, Harvey RG, Dipple A. Mutational specificity of the anti 1,2-dihydrodiol 3,4-epoxide of 5-methylchrysene. Carcinogenesis 1990; 11:2263-5. [PMID: 2176139 DOI: 10.1093/carcin/11.12.2263] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
An SV40-based pS189 shuttle vector, which contained a supF target gene and was replicated in human cells (Ad293), was used to determine the mutational specificity of anti 5-methylchrysene 1,2-dihydrodiol 3,4-epoxide, the active metabolite of the environmentally prevalent carcinogen 5-methylchrysene. The frequency of supF mutants containing point mutations increased with dose to approximately 40 times the spontaneous frequency. The induced mutations were not randomly distributed but occurred preferentially at mutagenic hotspots, which were not all identical to those reported by others for benzo[a]pyrene dihydrodiol epoxide, a metabolite with similar chemistry.
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Affiliation(s)
- C A Bigger
- Chemistry of Carcinogenesis Laboratory, NCI-Frederick Cancer Research and Developmental Center, MD 21702
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Pataki J. [Teratogenic effects of the workplace on pregnant women]. Orv Hetil 1990; 131:2288. [PMID: 2234924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Reardon DB, Prakash AS, Hilton BD, Roman JM, Pataki J, Harvey RG, Dipple A. Characterization of 5-methylchrysene-1,2-dihydrodiol-3,4-epoxide-DNA adducts. Carcinogenesis 1987; 8:1317-22. [PMID: 3621468 DOI: 10.1093/carcin/8.9.1317] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Products of reaction of the racemic anti bay region 1,2-dihydrodiol-3,4-epoxide of 5-methylchrysene with DNA were identified by comparison with the products formed in reactions with individual nucleotides. The latter products, i.e. two deoxyguanosine adducts and four deoxyadenosine adducts, were characterized by various spectroscopic methods. In DNA, in addition to the major deoxyguanosine adduct already identified by Melikian et al. (Cancer Res., 44, 2524, 1984), we have now identified a second deoxyguanosine adduct arising from the trans opening of the epoxide ring by the amino group of deoxyguanosine. This differs from the adduct characterized by Melikian et al. only in that it arises from the opposite enantiomer of the dihydrodiol epoxide. Three deoxyadenosine adducts were also found in DNA. Two of these arose from the trans opening of the epoxide ring of each dihydrodiol epoxide enantiomer by the amino group of deoxyadenosine and the third from the cis opening of the epoxide ring of one enantiomer. Approximately 32% of the racemic dihydrodiol epoxide reacts with DNA rather than with water and this high extent of reaction with DNA is attributed to the out-of-plane deformations arising from the methyl substitution in the bay region.
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Amin S, Huie K, Balanikas G, Hecht SS, Pataki J, Harvey RG. High stereoselectivity in mouse skin metabolic activation of methylchrysenes to tumorigenic dihydrodiols. Cancer Res 1987; 47:3613-7. [PMID: 3594428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The stereoselectivity of mouse skin metabolic activation to dihydrodiols of the strong carcinogen 5-methylchrysene (5-MeC) and the weak carcinogen 6-methylchrysene (6-MeC) was investigated. Synthetic 1,2-dihydro-1,2-dihydroxy-5-methylchrysene (5-MeC-1,2-diol), 5-MeC-7,8-diol, and 6-MeC-1,2-diol were resolved into their R,R- and S,S-enantiomers by chiral stationary phase high performance liquid chromatography. The absolute configurations of the enantiomers were assigned by their circular dichroism spectra. Using these enantiomers as standards, the metabolism of 5-MeC and 6-MeC in vitro in rat and mouse liver and in vivo in mouse epidermis was investigated. Only the R,R-enantiomers of each dihydrodiol predominated (greater than 90%). The dihydrodiol enantiomers were tested for tumor initiating activity on mouse skin. In each case, the R,R-dihydrodiol enantiomer was significantly more tumorigenic than the S,S-enantiomer. The most tumorigenic compound was 5-MeC-1R,2R-diol; it was significantly more active than either 5-MeC-7R,8R-diol or 6-MeC-1R,2R-diol. The results of this study demonstrate that there is a high degree of stereoselectivity in the metabolic activation of 5-MeC and 6-MeC to proximate tumorigenic dihydrodiols in mouse skin. The bay region methyl group has no effect on the stereoselectivity of activation to 1,2-dihydrodiol metabolites in the chrysene system.
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Kim MH, Roche CJ, Geacintov NE, Pope M, Pataki J, Harvey RG. Conformations of complexes derived from the interactions of two stereoisomeric bay-region 5-methylchrysene diol epoxides with DNA. J Biomol Struct Dyn 1986; 3:949-65. [PMID: 3271420 DOI: 10.1080/07391102.1986.10508476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The reaction mechanisms of two isomeric bay-region diol epoxides of 5-methylchrysene (trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydro-5-methylchrysene (DE-I) and trans-7,8-dihydroxy-anti-9,10-epoxy-7,8,9,10-tetrahydro-5-methylchrysene (DE-II) with double-stranded DNA in aqueous solutions were studied utilizing kinetic flow dichroism and fluorescence techniques. As in the case of the previously studied benzo(a)pyrene-7,8-diol-9,10-oxide isomers (BaPDE), both DE-I and DE-II rapidly form intercalation-type complexes (association constants K = 2700 and 1500 M-1 respectively in a neutral 5mM phosphate solution). The physically bound diol epoxide molecules react on time scales of minutes to form predominantly tetraols; a greater fraction (6 +/- 1%) of DE-I than of DE-II (2-3%) molecules react with the DNA to form covalent products. The DE-II isomer is characterized by a greater reactivity than DE-I, and the rates of reaction are markedly accelerated in the presence of DNA in both cases. The linear dichroism spectra of the covalent adducts reveal that the conformations of both types of adducts are similar, with the long axes of the phenanthrenyl chromophores tilted, on the average, at angles of 38-52 degrees with respect to the average orientations of the transition moments (at 260 nm) of the DNA bases. The conformations of the covalently bound DE-I and DE-II molecules resemble those observed in the case of the highly tumorigenic (+) enantiomer of anti-BaPDE.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- M H Kim
- Chemistry Department, New York University, N.Y. 10003
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Abstract
The two pairs of diastereomeric anti- and syn-diolepoxide derivatives of 5-methylchrysene in both bay regions were tested for cytotoxicity and for mutagenicity at the hprt locus of chinese hamster V79 cells as determined by the ability of the cells to form colonies in medium containing 6-thioguanine. The concentration of compound in the cell media required to achieve 37% survival ranged from 0.3 to 4.5 micrograms/ml. Although the mutagenic effectiveness, i.e. the induced mutation frequency per unit concentration of compounds, varied over a 30-fold range, the mutagenic efficiency, i.e. the induced mutation frequency at an equivalent level of cell survival, showed only a 3-fold variation. The anti-1,2-diol-3,4-epoxide isomer (anti-5MCDE-I) was found to be the most mutagenic of the 5-methylchrysene diolepoxide isomers. This finding is consistent with previous observations on the tumorigenicity of these diolepoxides.
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Melikian AA, Leszczynska JM, Amin S, Hecht SS, Hoffmann D, Pataki J, Harvey RG. Rates of hydrolysis and extents of DNA binding of 5-methylchrysene dihydrodiol epoxides. Cancer Res 1985; 45:1990-6. [PMID: 3986755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The rates of hydrolysis in the absence and presence of native and denatured DNA, and the extents of DNA binding of five dihydrodiol epoxides derived from 5-methylchrysene (5-MeC) and chrysene have been determined. The compounds studied were: trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydro-5-MeC; trans-7,8-dihydroxy-anti-9,10-epoxy-7,8,9,10-tetrahydro-5-Mec; trans-1,2-dihydroxy-syn-3,4-epoxy-1,2,3,4-tetrahydro-5-MeC; trans-7,8-dihydroxy-syn-9,10-epoxy-7,8,9,10-tetrahydro-5-MeC; and trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydrochrysene. In the absence of DNA, at pH 7 and 37 degrees C half-lives of trans-1,2-dihydroxy-syn-3,4-epoxy-1,2,3,4-tetrahydro-5-MeC and trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydro-5-MeC were similar, t 1/2 = 62 and 59 min, while trans-7,8-dihydroxy-syn-9,10-epoxy-7,8,9,10-tetrahydro-5-MeC hydrolyzed faster than trans-7,8-dihydroxy-anti-9,10-epoxy-7,8,9,10-tetrahydro-5-MeC, t 1/2 = 5.4 versus 17.5 min; trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydrochrysene had the slowest rate of hydrolysis, t 1/2 = 104 min. Studies of the effects of native and denatured DNA on the rates of hydrolysis of the dihydrodiol epoxides indicated that native DNA remarkably accelerated these rates for all dihydrodiol epoxides, but the degree of acceleration varied for the different dihydrodiol epoxides. The acceleration of hydrolytic rates by native DNA relative to that by denatured DNA was correlated with the covalent binding of these dihydrodiol epoxides with DNA in vitro. The catalytic effect of DNA in enhancing the rates of hydrolysis of dihydrodiol epoxides and the relative extents of covalent binding of the dihydrodiol epoxides to DNA were in the following order: trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydro-5-MeC greater than trans-7,8-dihydroxy-anti-9,10-epoxy-7,8,9,10-tetrahydro-5-MeC greater than trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydrochrysene greater than trans-1,2-dihydroxy-syn-3,4-epoxy-1,2,3,4-tetrahydro-5-MeC greater than trans-7,8-dihydroxy-syn-9,10-epoxy-7,8,9,10-tetrahydro-5-MeC. The results of this study suggest that physical interactions with DNA are important in determining the relative extents of binding of these dihydrodiol epoxides to DNA in vitro.
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Melikian AA, Hecht SS, Hoffmann D, Pataki J, Harvey RG. Analysis of syn- and anti-1,2-dihydroxy-3,4-epoxy-1,2,3,4-tetrahydro-5-methylchrysene -deoxyribonucleoside adducts by boronate chromatography. Cancer Lett 1985; 27:91-7. [PMID: 4005825 DOI: 10.1016/0304-3835(85)90012-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The Servacel DHB (m-dihydroxyborylphenylaminoethyl cellulose) chromatographic procedure developed by Sawiki et al. (Cancer Res., 43,3212-3218, 1983) for analysis of 7,12-dimethylbenz[a]anthracene (DMBA)-DNA adducts was applied to analyze syn- and anti-1,2-dihydroxy-3,4-epoxy-1,2,3,4-tetrahydro-5-methylchrysene (DE-I)-deoxyribonucleoside adducts. Identical elution conditions to whose developed for the DMBA adducts were employed. While the results were similar to those obtained in the DMBA system, some of the anti-DE-I-deoxyribonucleoside adducts eluted with the buffer system used for elution of syn-adducts. Complete resolution of the anti- and syn-adducts was obtained when modified elution conditions as developed by Pruess-Schwartz et al. (Cancer Res., 44, 4104-4110, 1984) for analysis of syn- and anti-7 alpha-8 beta-dihydroxy-9 beta, 10 beta-epoxy-7,8,9,10-tetrahydrobenzo[a]-pyrene--DNA adducts were applied. Based on this chromatographic procedure about 15% of the DE-I-deoxyribonucleoside adducts, formed in mouse skin DNA upon treatment with 5-[3H]methylchrysene (MeC), originated from syn-DE-I.
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Hecht SS, Radok L, Amin S, Huie K, Melikian AA, Hoffmann D, Pataki J, Harvey RG. Tumorigenicity of 5-methylchrysene dihydrodiols and dihydrodiol epoxides in newborn mice and on mouse skin. Cancer Res 1985; 45:1449-52. [PMID: 3838497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
5-Methylchrysene, (+/-)-trans-1,2-dihydro-1,2-dihydroxy-5-methylchrysene, (+/-)-trans-7,8-dihydro-7,8-dihydroxy-5-methylchrysene, (+/-)-trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydro-5-methylchrysene (anti-DE-I), (+/-)-trans-1,2-dihydroxy-syn-3,4-epoxy-1,2,3,4-tetrahydro-5-methylchrysene (syn-DE-I), and (+/-)-trans-7,8-dihydroxy-anti-9,10-epoxy-7,8,9,10-tetrahydro-5-methylchrysene (anti-DE-II) were tested for tumorigenicity in newborn mice and for tumor-initiating activity on mouse skin. In newborn mice, a total dose of 56 nmol of anti-DE-I induced 4.6 lung tumors/mouse and 1.2 liver tumors/mouse. These incidences were significantly higher than observed for any of the other metabolites, tested at equimolar doses. The results indicate that anti-DE-I, but not syn-DE-I or anti-DE-II, is a major ultimate carcinogen of 5-methylchrysene in the newborn mouse. Anti-DE-I was also more tumorigenic than anti-DE-II on mouse skin, inducing 4.4 tumors/mouse after an initiating dose of 100 nmol, compared to zero tumors per mouse induced by anti-DE-II. However, anti-DE-I was less tumorigenic on mouse skin than was its metabolic precursor, trans-1,2-dihydro-1,2-dihydroxy-5-methylchrysene or its parent hydrocarbon, 5-methylchrysene.
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Kim MH, Geacintov NE, Pope M, Pataki J, Harvey RG. Reaction mechanisms of trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydro-5-methylchrysene with DNA in aqueous solutions. Carcinogenesis 1985; 6:121-6. [PMID: 3967331 DOI: 10.1093/carcin/6.1.121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Reactions of trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydro-5-methylchrysene (anti-5-MeCDE) with DNA and the effects of ionic strength on the reaction were studied in aqueous buffer solution (5 mM sodium phosphate, pH 7) by means of absorption and fluorescence spectroscopy. The results are compared with those obtained with the widely studied metabolite model compound trans-7,8-dihydroxy-anti-9,10-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene (BaPDE). The rate constant of hydrolysis of 5-MeCDE is k = 1.0 X 10(4)/S, which is approximately 35 times smaller than the value of k for BaPDE under similar conditions. As in the case of BaPDE, the rate of reaction of 5-MeCDE is accelerated in the presence of DNA. This effect is attributed to the rapid formation of physical association complexes (binding constant K) and the subsequent slower formation (rate constant k3) of carbocations at DNA binding sites, which in turn decay rapidly via hydrolysis to tetraols (1,2,3,4-tetrahydroxytetrahydro-5-methylchrysene, 5-MeCT) and to covalent adducts. The values of K and k3 are 2800 +/- 300/M and 8.7 X 10(-3)/S respectively, and are reduced to 450 +/- 100/M and 1.8 X 10(-3)/S in the presence of 0.1 M NaCl. The fraction of 5-MeCDE molecules which bind covalently to DNA is, on the other hand, constant under these conditions and lies in the range of 5-8%. Similar values for the covalent binding are observed for BaPDE, even though the physical association constant K is approximately 10 times larger than for 5-MeCDE under similar conditions. This difference in the values of K are attributed to the larger aromatic ring system in BaPDE which allows for a higher interaction of this molecule with the bases of DNA. Finally, the tetraol derived from the hydrolysis of 5-MeCDE also binds non-covalently to DNA, but the value of K is approximately 3 times smaller than for the diol epoxide.
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Melikian AA, Amin S, Hecht SS, Hoffmann D, Pataki J, Harvey RG. Identification of the major adducts formed by reaction of 5-methylchrysene anti-dihydrodiol-epoxides with DNA in vitro. Cancer Res 1984; 44:2524-9. [PMID: 6547075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
5-Methylchrysene is metabolically converted to the bay-region dihydrodiol-epoxides, trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydro-5-methylchrysene (DE-I), in which the methyl group and the epoxide ring are in the same bay region, and trans-7,8-dihydroxy-anti-9,10-epoxy-7,8,9,10-tetrahydro-5-methylchrysene (DE-II). Previous studies have indicated that DE-I is more important in 5-methylchrysene carcinogenesis than is DE-II. Both DE-I and DE-II were individually reacted with calf thymus DNA in vitro. The DNA was enzymatically hydrolyzed to deoxyribonucleosides, and the modified deoxyribonucleosides were separated by chromatography on Sephadex LH-20 and analyzed by high-performance liquid chromatography. One major adduct and seven minor adducts were formed from each dihydrodiol-epoxide. The major adduct was, in each case, characterized by its pH-dependent partition coefficient, stability to base, mass spectrum, ultraviolet spectrum, and nuclear magnetic resonance spectrum as a deoxyguanosine derivative resulting from addition of the exocyclic amino group of deoxyguanosine to the benzylic carbon of the epoxide ring of the dihydrodiol-epoxide. The results of this study show that the major DNA adducts formed from 5-methylchrysene via DE-I and DE-II are structurally similar.
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Abstract
Synthesis is described of trans-1,2-dihydroxy-1,2-dihydro-5-methylchrysene and trans-1,2-dihydroxy-anti-3,4-epoxy-1,2,3,4-tetrahydro-5-methylchrysene, implicated as the proximate and ultimate carcinogenic metabolites, respectively, of the potent environmental carcinogen 5-methylchrysene.
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Abstract
Treatment of the unstable 3beta-hydroxy-20, 20-dimethoxypregn-5-ene 3-acetate with acetic anhydride at reflux temperature gave a mixture of 3beta-hydroxy-20-methoxypregna-5, 17(20)-diene and 3beta-hydroxy-20-methoxypregna-5, 20-diene 3-acetates. Fluorination of this mixture with perchloryl fluoride afforded after fractionated crystallization 3beta-hydroxy-17-fluoro-20-methoxypregna-5, 20-diene 3-acetate. Acid hydrolysis of the reaction mixture and subsequent chromatographic separation led to 3beta-hydroxy-17-fluoropregn-5-en-20-one 3-acetate and 3beta-hydroxy-21-fluoropregn-5-en-20-one 3-acetate. 3beta-Hydroxy-17-fluoro-20-methoxy-pregna-5, 20-diene 3-acetate did not react further with perchloryl fluoride even under forcing conditions. Fluorination of 3beta-hydroxy-20-(N-ethyl benzylamino)-pregna-5, 17(20)-diene gave 3beta-hydroxy-17, 21-difluoro-pregn-5-en-20-one, exclusively.
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Huggins C, Morii S, Pataki J. Selective destruction of adrenal cortex by pulse doses of derivatives of 12-methylbenz(a)anthracene. Proc Natl Acad Sci U S A 1969; 62:704-7. [PMID: 5256999 PMCID: PMC223655 DOI: 10.1073/pnas.62.3.704] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Pulse doses of emulsions of ten polynuclear aromatic hydrocarbons were found to destroy the adrenal cortex selectively. The corticolytic hydrocarbons are derivatives of 12-methylbenz(a)anthracene which possess at position 7 an alkyl, methoxymethyl, formyl, or hydroxyalkyl group. It would appear that the active corticolytic agent is 7-hydroxyalkyl-12-methylbenz(a)anthracene, of chemical source or generated in metabolism.
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Pataki J, Huggins C. Molecular site of substituents of benz(a)anthracene related to carcinogenicity. Cancer Res 1969; 29:506-9. [PMID: 5773797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Ruzicka L, Plattner PA, Heusser H, Pataki J. �ber Steroide und Sexualhormone. (129. Mitteilung). Synthese von 14,15-Oxido-Verbindungen der Steroid-Reihe; 3?-Acetoxy-14,15-oxido-17-iso-allo-�tiocholans�ure-methylester. Helv Chim Acta 1946. [DOI: 10.1002/hlca.19460290417] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Plattner PA, Pataki J. �ber Steroide und Sexualhormone. (86. Mitteilung). �ber die Hydrierungsprodukte der ?5,6;20,22-3?-Oxy-nor-choladiens�ure. Helv Chim Acta 1943. [DOI: 10.1002/hlca.19430260427] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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