Results 41 to 50 of about 48,177 (188)

Decarboxylation of uroporphyrinogen III by erythrocyte uroporphyrinogen decarboxylase. Evidence for a random decarboxylation mechanism [PDF]

Biochemical Journal, 1990
The isomeric composition of type-III heptacarboxylic porphyrinogens derived from decarbosylation of uroporphyrinogen III by erythrocyte uroporphyringogen decarboxylase was analysed by h.p.l.c. with electrochemical detection. All four possible isomers were identified, and there were little differences in the proportion of isomers formed by erythrocytes ...
J, Luo, C K, Lim
openaire   +2 more sources

A Mg‐Chelatase Subunit I Missense Mutant in Barley Exhibits a Cold‐Sensitive Phenotype Under Field Conditions

Physiologia Plantarum, Volume 177, Issue 4, July/August 2025.
ABSTRACT The pale‐green barley mutant xan‐h.chli‐1 has a HvCHLI subunit of Mg‐chelatase with an Arg‐to‐Lys substitution at position 298 and exhibits a unique cold‐sensitive phenotype. Under winter field conditions, xan‐h.chli‐1 plants fail to survive, whereas they thrive under spring or greenhouse conditions. Controlled experiments show a specific cold‐
Andrea Persello, Viola Torricella, Federico Ballabio, Chiara Bertaso, Lisa Rotasperti, Nicolaj Jeran, Simona Masiero, Nina Gauri Capra, Riccardo Capelli, Carlo Camilloni, Laura Rossini, David S. Horner, Francesco Camerlengo, Giuseppe Sangiorgi, Anja Krieger‐Liszkay, Silvan Petrac, Luca Tadini, Bernhard Grimm, Paolo Pesaresi   +18 more
wiley   +1 more source

Dermatologic manifestations of hereditary hemochromatosis: A systematic review

Journal of the European Academy of Dermatology and Venereology, Volume 39, Issue 5, Page 976-986, May 2025.
Abstract Hereditary hemochromatosis (HH) is a genetic disorder leading to excessive iron absorption, impacting multiple organs, notably the skin, nails and mucosae. The objective of this study is to elucidate the dermatologic manifestations, associated symptoms, pathophysiology and management recommendations of HH.
Hossein Akbarialiabad, Parnian Jamshidi, Jeffrey P. Callen, Dédée F. Murrell   +3 more
wiley   +1 more source

Specific effects on liver relevant for performing a dietary cumulative risk assessment of pesticide residues

EFSA Journal, Volume 23, Issue 5, May 2025.
Abstract According to the ‘EFSA‐SANTE Action Plan on Cumulative Risk Assessment for pesticides residues’, EFSA initiated a retrospective cumulative risk assessment (CRA) of the effects of pesticide residues on the liver. For this CRA, EFSA identified the following liver‐specific effects in accordance with the International Harmonisation of Nomenclature
European Food Safety Authority (EFSA), Anna F. Castoldi, Tamara Coja, Anna Lanzoni, Kyriaki Machera, Luc Mohimont, Monica Nepal, Camilla Recordati, Federica Crivellente   +8 more
wiley   +1 more source

N‐Glycoproteomics of the Apicomplexan Parasite Toxoplasma gondii

PROTEOMICS, Volume 25, Issue 8, April 2025.
ABSTRACT Protein N‐glycosylation influences protein folding, stability, and trafficking, and has prominent functions in cell–cell adhesion and recognition. For the parasite Toxoplasma gondii, N‐glycosylation of proteins is crucial for initial adhesion to host cells, parasite motility, and consequently, its ability to invade host cells.
Vanessa Horn, Patricia Zarnovican, Birgit Tiemann, Andreas Pich, Hans Bakker, Françoise H. Routier   +5 more
wiley   +1 more source

An overview of the cutaneous porphyrias [PDF]

, 2017
This is an overview of the cutaneous porphyrias. It is a narrative review based on the published literature and my personal experience; it is not based on a formal systematic search of the literature.
A Anstey, A Anstey, A Tewari, A van Tuyll van Serooskerken, B Engin, C Landefeld, C Rimington, D Yoo, E Di Pierro, E Erlandsen, E Minder, E Minder, G Biolcati, G Elder, H Baart de la Faille, H Baart de la Faille, H Lim, H Lim, H Moseley, H Peters, I Magnus, J Bijlmer-Iest, J Bloomer, J Harms, J Langendonk, J Langendonk, J Tu, J Woolf, K Batts, K Tanigawa, L Gouya, L Gouya, L Harber, L Warren, M Boffa, M Corbett, M Ichihashi, M Mathews-Roth, M Poh-Fitzpatrick, M Sivaramakrishnan, P Aguilera, P Collins, P Farr, P Stein, P Vasconcelos, R Dawe, R Dawe, R Dawe, R Fontana, R Hift, R Katugampola, R Katugampola, R Sarkany, R Sarkany, S de Bataille, S Dover, S Dover, S Holme, S Holme, S Holme, S Schäd, S Wahlin, S Wahlin, S Wahlin, S Whatley, S Whatley, S Yamamoto, S Zaynoun, T Karamfilov, V Weimar, W Burke, Y Tokura   +71 more
core   +3 more sources

Associated bacteria affect sexual reproduction by altering gene expression and metabolic processes in a biofilm inhabiting diatom [PDF]

, 2019
Diatoms are unicellular algae with a fundamental role in global biogeochemical cycles as major primary producers at the base of aquatic food webs. In recent years, chemical communication between diatoms and associated bacteria has emerged as a key factor
Bilcke, Gust, Cirri, Emilio, De Decker, Sam, De Veylder, Lieven, Osuna, Cristina, Pohnert, Georg, Vandepoele, Klaas, Vyverman, Wim, Werner, Markus, Werz, Oliver   +9 more
core   +2 more sources

Practical recommendations for biochemical and genetic diagnosis of the porphyrias

Liver International, Volume 45, Issue 3, March 2025.
Abstract The porphyrias are a group of rare inborn errors of metabolism associated with various clinical presentations and long‐term complications, making them relevant differential diagnoses to consider for many clinical specialities, especially hepatologists, gastroenterologists and dermatologists.
Aasne K. Aarsand, Jordi To‐Figueras, Sharon Whatley, Sverre Sandberg, Caroline Schmitt   +4 more
wiley   +1 more source

Expression of Uroporphyrinogen Decarboxylase or Coproporphyrinogen Oxidase Antisense RNA in Tobacco Induces Pathogen Defense Responses Conferring Increased Resistance to Tobacco Mosaic Virus*

Journal of Biological Chemistry, 1999
Transgenic tobacco plants with reduced activity of either uroporphyrinogen decarboxylase or coproporphyrinogen oxidase, two enzymes of the tetrapyrrole biosynthetic pathway, are characterized by the accumulation of photosensitizing tetrapyrrole ...
H. Mock, W. Heller, A. Molina, B. Neubohn, H. Sandermann, B. Grimm   +5 more
semanticscholar   +1 more source

Photosensitivity Skin Disorders in Childhood [PDF]

, 2010
Photosensitivity in childhood is caused by a diverse group of diseases. A specific sensitivity of a child’s skin to ultraviolet light is often the first manifestation or a clinical symptom of photodermatosis.
Ines Sjerobabski-Masnec, Lena Kotrulja, Mirna Šitum, Sanja Poduje, Suzana Ožanić-Bulić   +4 more
core   +1 more source