Search PubMed⌕ Search

Biomedical subjects

D B Archer

Publications and source records attributed to D B Archer.

210 records · Page 12Linked to original sources
PubMedDate not supplied

Late presentation of congenital ectropion of the eyelids in a child with Down syndrome: a case report and review of the literature.

Congenital eversion or ectropion of the upper eyelids is rare. Only 50 cases have been reported since the condition was first described in 1896. We encountered an additional case of congenital ectropion of the eyelids, which is also unusual because of its late presentation for treatment. This case demonstrates the unfavorable outcome of failure to treat this condition at birth and illustrates the association with Down syndrome. Our case is compared with the others reported in the literature.

Child↗
PubMedDate not supplied

Molecular biology of spiroplasma plasmids.

With one exception, all spiroplasma strains examined contained extrachromosomal DNA, most of which was in the form of covalently closed circular plasmids. One plasmid, pIJ2000, carried by Spiroplasma citri strain ASP-1, was purified and characterized and used to probe for related plasmids in other strains. Unsuccessful attempts were made to clone pIJ2000 into Escherichia coli using the vectors pAT153 and pBR322. However, spiroplasma chromosomal DNA fragments could be cloned without difficulty.

Cloning, Molecular↗