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2. Freshwater sponges have functional, sealing epithelia with high transepithelial resistance and negative transepithelial potential.

Author

Emily D M Adams, Greg G Goss, and Sally P Leys

Subjects
Medicine, Science
Abstract

Epithelial tissue - the sealed and polarized layer of cells that regulates transport of ions and solutes between the environment and the internal milieu - is a defining characteristic of the Eumetazoa. Sponges, the most ancient metazoan phylum, are generally believed to lack true epithelia, but their ability to occlude passage of ions has never been tested. Here we show that freshwater sponges (Demospongiae, Haplosclerida) have functional epithelia with high transepithelial electrical resistance (TER), a transepithelial potential (TEP), and low permeability to small-molecule diffusion. Curiously, the Amphimedon queenslandica sponge genome lacks the classical occluding genes [5] considered necessary to regulate sealing and control of ion transport. The fact that freshwater sponge epithelia can seal suggests that either occluding molecules have been lost in some sponge lineages, or demosponges use novel molecular complexes for epithelial occlusion; if the latter, it raises the possibility that mechanisms for occlusion used by sponges may exist in other metazoa. Importantly, our results imply that functional epithelia evolved either several times, or once, in the ancestor of the Metazoa.

Published
2010
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3. Is periodontal disease preventable?

Author

Henry D M Adams, M J Kowolik, and I T Macphee

Subjects
Metronidazole, Periodontal disease, business.industry, medicine, Dentistry, Humans, General Medicine, business, Letters to the Editor, Periodontal Diseases, medicine.drug
Published
1983

4. HLA-B8, immunoglobulins, and antibody responses in alcohol-related liver disease

Author

H.C. Thomas, M. Ross, C M Ng, M Y Morgan, D M Adams, and Sheila Sherlock

Subjects
Male, Cirrhosis, Alcoholic hepatitis, Immunoglobulins, Antibodies, Viral, Pathology and Forensic Medicine, Liver disease, Antigen, HLA Antigens, medicine, Humans, Liver Diseases, Alcoholic, Autoantibodies, Hepatitis, biology, business.industry, Autoantibody, General Medicine, medicine.disease, Histocompatibility, Liver, Measles virus, Immunology, Antibody Formation, biology.protein, Female, Antibody, business, Rubella virus, Research Article
Abstract

Ninety-two British, caucasian, alcoholic patients with liver disese were grouped on the basis of hepatic histology into fatty change, hepatitis with or without cirrhosis, and cirrhosis alone. Men with alcoholic hepatitis with or without cirrhosis showed an increased incidence of the histocompatibility antigen HLA-B8 (P less than 0.02). Increased measles antibody titres were found in patients without cirrhosis with or without hepatitis and were associated with the B8 phenotype in both sexes. Rubella antibody titres and percentage DNA-binding were raised in patients with cirrhosis and showed no association with the B8 phenotype. Concentrations of IgM and IgA were were raised in patients with stetosis and with hepatitis, while in patients with cirrhosis IgG concentrations were also increased. Low titres of autoantibodies were found in all histological groups. It is possible that the development of hepatitis in response to alcohol abuse may be influenced, at least in men, by a gene linked to the B locus. Otherwise, immune processes associated with alcohol-related liver disease are probably secondary phenomena.

Published
1980

5. Spectroscopic Properties of Inorganic and Organometallic Compounds : Volume 14

Author

D M Adams, E A V Ebsworth, D M Adams, and E A V Ebsworth

Subjects
Spectrum analysis--Periodicals, Complex compounds--Spectra--Periodicals, Organometallic compounds--Spectra--Periodicals
Abstract

Spectroscopic Properties of Inorganic and Organometallic Compounds provides a unique source of information on an important area of chemistry. Divided into sections mainly according to the particular spectroscopic technique used, coverage in each volume includes: NMR (with reference to stereochemistry, dynamic systems, paramagnetic complexes, solid state NMR and Groups 13-18); nuclear quadrupole resonance spectroscopy; vibrational spectroscopy of main group and transition element compounds and coordinated ligands; and electron diffraction. Reflecting the growing volume of published work in this field, researchers will find this Specialist Periodical Report an invaluable source of information on current methods and applications. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading experts in their specialist fields, this series is designed to help the chemistry community keep current with the latest developments in their field. Each volume in the series is published either annually or biennially and is a superb reference point for researchers. www.rsc.org/spr

Published
1981

6. Spectroscopic Properties of Inorganic and Organometallic Compounds : Volume 11

Author

D M Adams, E A V Ebsworth, D M Adams, and E A V Ebsworth

Subjects
Spectrum analysis, Complex compounds--Spectra, Organometallic compounds--Spectra
Abstract

Spectroscopic Properties of Inorganic and Organometallic Compounds provides a unique source of information on an important area of chemistry. Divided into sections mainly according to the particular spectroscopic technique used, coverage in each volume includes: NMR (with reference to stereochemistry, dynamic systems, paramagnetic complexes, solid state NMR and Groups 13-18); nuclear quadrupole resonance spectroscopy; vibrational spectroscopy of main group and transition element compounds and coordinated ligands; and electron diffraction. Reflecting the growing volume of published work in this field, researchers will find this Specialist Periodical Report an invaluable source of information on current methods and applications. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading experts in their specialist fields, this series is designed to help the chemistry community keep current with the latest developments in their field. Each volume in the series is published either annually or biennially and is a superb reference point for researchers. www.rsc.org/spr

Published
1979

7. Spectroscopic Properties of Inorganic and Organometallic Compounds : Volume 13

Author

D M Adams, E A V Ebsworth, D M Adams, and E A V Ebsworth

Subjects
Spectrum analysis--Periodicals, Complex compounds--Spectra--Periodicals, Organometallic compounds--Spectra--Periodicals
Abstract

Spectroscopic Properties of Inorganic and Organometallic Compounds provides a unique source of information on an important area of chemistry. Divided into sections mainly according to the particular spectroscopic technique used, coverage in each volume includes: NMR (with reference to stereochemistry, dynamic systems, paramagnetic complexes, solid state NMR and Groups 13-18); nuclear quadrupole resonance spectroscopy; vibrational spectroscopy of main group and transition element compounds and coordinated ligands; and electron diffraction. Reflecting the growing volume of published work in this field, researchers will find this Specialist Periodical Report an invaluable source of information on current methods and applications. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading experts in their specialist fields, this series is designed to help the chemistry community keep current with the latest developments in their field. Each volume in the series is published either annually or biennially and is a superb reference point for researchers. www.rsc.org/spr

Published
1980

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