Association of vitamin B12, methylmalonic acid, and functional parameters

Autor: B H R, Wolffenbuttel, H J C M, Wouters, W H A, de Jong, G, Huls, M M, van der Klauw

Publikováno v: The Netherlands journal of medicine. 78(1)

Diagnosis of vitamin B12 deficiency is difficult, as there is no conclusive single test for this disorder. We evaluated the association of serum B12 and methylmalonic acid (MMA) with haematologic parameters and physical and cognitive functioning in a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::04a8882d66997652e50da2a8a409e868
https://pubmed.ncbi.nlm.nih.gov/32043477

Plasma levels of free metanephrines and 3-methoxytyramine indicate a higher number of biochemically active HNPGL than 24-h urinary excretion rates of catecholamines and metabolites

Autor: D Brookman, E P M Corssmit, N van Duinen, W H A de Jong, J A Romijn, Ido P. Kema

Publikováno v: European journal of endocrinology / European Federation of Endocrine Societies, 169(3), 377-382. BioScientifica Ltd.
European Journal of Endocrinology, 169(3), 377-382
European Journal of Endocrinology, 169(3), 377-382. BIOSCIENTIFICA LTD

ContextA substantial number of patients with head and neck paragangliomas (HNPGLs) have biochemically active tumors, evidenced by increased urinary excretion of catecholamines and metabolites, including 3-methoxytyramine (3MT). It is unclear whether

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::748f7912b78f1af97d696bbfe7a31663
https://hdl.handle.net/1887/102162

Changes in oestradiol, progesterone and testosterone concentrations in follicular fluid and in the micromorphology of preovulatory bovine follicles relative to the peak of luteinizing hormone

Autor: Th. A. M. Kruip, G.C. van der Weyden, Steph J. Dieleman, W. H. R. de Jong, P. Fontijne

Publikováno v: Journal of Endocrinology. 97:31-NP

Preovulatory bovine follicles (n = 58) were collected at different times after the onset of standing oestrus when cows would allow mounting until shortly before ovulation, which occurred 24 ± 1·4 h after the peak level of LH in the peripheral blood

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f92a77f53cb8a3f20698358eee63a5d9
https://doi.org/10.1677/joe.0.0970031