Evaluation of DNA damage using the comet assay in children on long-term benzathine penicillin for secondary prophylaxis of rheumatic fever. 2001

R Dündaröz, and H Ulucan, and M Denli, and K Karapinar, and H I Aydin, and V Baltaci
Department of Pediatrics, Gülhane Military Medical Academy and Medical School, Ankara, Turkey. rusenmd@excite.com

BACKGROUND Benzathine penicillin is the most widely used antibiotic in the prophylaxis of children with rheumatic fever. The aim of the present study was to evaluate the DNA damage in children receiving one dose of 1.2 million units benzathine penicillin every 4 weeks over a long period to prevent recurrences of rheumatic fever. METHODS Thirty-five children with confirmed rheumatic fever under benzathine penicillin prophylaxis were enrolled in the study and 35 healthy children with similar ages and socioeconomic backgrounds served as controls. To detect any DNA damage, the comet assay was performed on circulating lymphocytes from the study subjects. RESULTS Damaged (limited and extensive migration) cells in children on prophylactic therapy were higher than those in controls (P<0.001). CONCLUSIONS It has been suggested that differences in the comet scores were induced by the administration of benzathine penicillin over a long period of time and further investigations are needed to confirm this toxic effect.

UI MeSH Term Description Entries
D008297 Male Males
D010401 Penicillin G Benzathine Semisynthetic antibiotic prepared by combining the sodium salt of penicillin G with N,N'-dibenzylethylenediamine. Benzathine Penicillin,Bencelin,Benzathine Benzylpenicillin,Benzathine Benzylpénicilline Panpharma,Benzetacil,Bicillin,Bicillin L-A,Brevicilina,Cepacilina,Debecillin,Extencilline,Pendepon,Penduran,Pendysin,Penicillin G Benzathine Anhydrous,Penidural,Peniroger Retard,Permapen,Provipen Benzatina,Tardocillin,Benzathine, Penicillin G,Benzylpenicillin, Benzathine,Bicillin L A,Bicillin LA,Penicillin, Benzathine
D010406 Penicillins A group of antibiotics that contain 6-aminopenicillanic acid with a side chain attached to the 6-amino group. The penicillin nucleus is the chief structural requirement for biological activity. The side-chain structure determines many of the antibacterial and pharmacological characteristics. (Goodman and Gilman's The Pharmacological Basis of Therapeutics, 8th ed, p1065) Antibiotics, Penicillin,Penicillin,Penicillin Antibiotics
D004249 DNA Damage Injuries to DNA that introduce deviations from its normal, intact structure and which may, if left unrepaired, result in a MUTATION or a block of DNA REPLICATION. These deviations may be caused by physical or chemical agents and occur by natural or unnatural, introduced circumstances. They include the introduction of illegitimate bases during replication or by deamination or other modification of bases; the loss of a base from the DNA backbone leaving an abasic site; single-strand breaks; double strand breaks; and intrastrand (PYRIMIDINE DIMERS) or interstrand crosslinking. Damage can often be repaired (DNA REPAIR). If the damage is extensive, it can induce APOPTOSIS. DNA Injury,DNA Lesion,DNA Lesions,Genotoxic Stress,Stress, Genotoxic,Injury, DNA,DNA Injuries
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D012213 Rheumatic Fever A febrile disease occurring as a delayed sequela of infections with STREPTOCOCCUS PYOGENES. It is characterized by multiple focal inflammatory lesions of the connective tissue structures, such as the heart, blood vessels, and joints (POLYARTHRITIS) and brain, and by the presence of ASCHOFF BODIES in the myocardium and skin. Acute Rheumatic Fever,Arthritis, Rheumatic, Acute,Rheumatism, Articular, Acute,Arthritis, Acute Rheumatic,Inflammatory Rheumatism,Polyarthritis Rheumatica,Rheumatic Arthritis,Rheumatism, Acute Articular,Acute Articular Rheumatism,Acute Articular Rheumatisms,Acute Rheumatic Arthritides,Acute Rheumatic Arthritis,Acute Rheumatic Fevers,Arthritis, Rheumatic,Articular Rheumatism, Acute,Fever, Acute Rheumatic,Fever, Rheumatic,Fevers, Acute Rheumatic,Inflammatory Rheumatisms,Polyarthritis Rheumaticas,Rheumatic Arthritides,Rheumatic Arthritis, Acute,Rheumatic Fever, Acute,Rheumatic Fevers,Rheumatism, Inflammatory
D020552 Comet Assay A genotoxicological technique for measuring DNA damage in an individual cell using single-cell gel electrophoresis. Cell DNA fragments assume a "comet with tail" formation on electrophoresis and are detected with an image analysis system. Alkaline assay conditions facilitate sensitive detection of single-strand damage. Alkaline Comet Assay,Alkaline Single-Cell Gel Electrophoresis Assay,Electrophoresis, Gel, Single-Cell,Gel Electrophoresis, Single-Cell,Alkaline Comet Assays,Alkaline Single Cell Gel Electrophoresis Assay,Assay, Alkaline Comet,Assay, Comet,Assays, Alkaline Comet,Assays, Comet,Comet Assay, Alkaline,Comet Assays,Comet Assays, Alkaline,Electrophoreses, Single-Cell Gel,Electrophoresis, Single-Cell Gel,Gel Electrophoreses, Single-Cell,Gel Electrophoresis, Single Cell,Single-Cell Gel Electrophoreses,Single-Cell Gel Electrophoresis

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