Results 51 to 60 of about 20,002 (267)

The Porphyrins, Origin of Life in Biological Universe and Evolution/Regulation of the Human System [PDF]

, 2012
Objectives: Actinidic archaea have been related to thepathogenesis of schizophrenia, malignancy, metabolicsyndrome x, autoimmune disease and neuronaldegeneration. An actinide dependent shadow biosphere ofarchaea and viroids in the above mentioned disease
Kurup, Parameswara Achutha, Kurup, Ravikumar A.   +1 more
core   +2 more sources

Catalytic Amyloids: Turning Fibrils Into Biocatalysts

Chemistry – A European Journal, EarlyView.
Amyloids, traditionally associated with diseases, have emerged as versatile catalytic scaffolds. From natural amyloid sequences to bioinspired and de novo designs, we highlight strategies to construct catalytic active sites and anchor enzymes onto fibrils, creating versatile nanomaterials with tunable activities. ABSTRACT Amyloids have been regarded as
Alessandra Esposito, Linda Leone, Flavia Nastri, Angela Lombardi   +3 more
wiley   +1 more source

The Homo Neanderthalis and the Dravidians: A Common Origin and Relation to Harappan Civilisation and Vedas [PDF]

, 2013
INTRODUCTION: The postulated Lemurian part of the Indian sub-continent in South India is inhabited by the dominant Nair community. The dominant Nair community also has a high incidence of autism. Neanderthal anthropometric features have been described in
Kurup, Parameswara Achutha, Kurup, Ravikumar A.   +1 more
core   +2 more sources

Long‐Term Control of Human Papillomavirus‐Related Focal Epithelial Hyperplasia in an Human Immunodeficiency Virus‐Positive Patient Using Methylene Blue‐Mediated Photodynamic Therapy. A Case Report

Lasers in Surgery and Medicine, EarlyView.
ABSTRACT Background Human papillomavirus (HPV) infections are a major cause of oral lesions, and in individuals living with HIV, lesions such as focal epithelial hyperplasia (FEH) may persist or exhibit atypical features, potentially progressing to more severe conditions if untreated.
Juliana Cristina Oliverio de Araújo, Hermano Camelo Paiva, Paula Margarida Meyer Faara, Og Fray Junior, Martha Simões Ribeiro   +4 more
wiley   +1 more source

The continuing significance of chiral agrochemicals

Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Moderate increase of MET in hepatocytes protects against cholestatic liver injury by promoting an effective antioxidant response

The FEBS Journal, EarlyView.
Moderate overexpression of wild‐type Met in hepatocytes (Alb‐R26Met mouse model) boosts a strong antioxidant response dependent on the glutathione system while impairing TGF‐β signaling in the liver. This leads to improved liver regeneration and protects against DDC‐induced injury, a model for cholestatic disease sharing features with primary ...
Carlos González‐Corralejo, Juan García‐Sáez, María Figueroa‐Fuentes, Annalisa Addante, Cesáreo Roncero, Nerea Lazcanoiturburu, Beatriz Pacheco, Julián Sanz, Cristina Gato, Eva Fernández‐Calderón, María de la O López, Águeda González‐Rodríguez, Almudena Porras, Flavio Maina, Isabel Fabregat, Blanca Herrera, Aránzazu Sánchez   +16 more
wiley   +1 more source

Determination of selected protoporphyrins in Parma ham with use of 5,10,15,20-tetra(4-hydroxyphenyl)porphyrin as a surrogate standard in the recovery study

Acta Chimica Slovenica, 2014
A high-performance liquid chromatographic analysis for the determination of hemin, protoporphyrin IX (PPIX), and zinc(II)protoporphyrin IX (Zn(II)PPIX) in Parmaham was developed.
Hannelore De Maere, Eveline De Mey, Martyna Baca, Mieczysław Sajewicz, Hubert Paelinck, Ilse Fraeye, Teresa Kowalska   +6 more
doaj  

Application of the electronic spectra of porphyrins for analytical purposes: the effects of metal ions and structural distortions [PDF]

, 2013
We investigated the UV-Vis absorption, singlet-1 and singlet-2 fluorescence, as well as the formation of several metalloporphyrins from equilibrial and kinetic aspects in aqueous solution.
Horváth, Ottó, Valicsek, Zsolt
core   +1 more source

Bacterial porphyrins in healthy skin: Microbiota components impact melanogenesis and age‐related processes leading to Porphyr'ageing

International Journal of Cosmetic Science, EarlyView.
Porphyrins, previously linked only to acne inflammation, are now implicated in skin ageing. Their presence correlates with increased melanin, inflammation, and oxidative stress, contributing to premature ageing signs. This study introduces the concept of “Porphyr'ageing,” highlighting the detrimental effects of bacterial metabolites on skin health and ...
Marie Meunier, Morgane De Tollenaere, Cyrille Jarrin, Emilie Chapuis, Marine Bracq, Laura Lapierre, Catherine Zanchetta, Jean Tiguemounine, Amandine Scandolera, Romain Reynaud   +9 more
wiley   +1 more source

Pharmacological versus genetic inhibition of heme oxygenase-1 : the comparison of metalloporphyrins, shRNA and CRISPR/Cas9 system [PDF]

, 2018
Inhibition of heme oxygenase-1 (HO-1, encoded by HMOX1), a cytoprotective, anti-apoptotic and anti-inflammatory enzyme, may serve as a valuable therapy in various pathophysiological processes, including tumorigenesis.
Biela, Anna, Czarnek, Maria, Dulak, Józef, Józkowicz, Alicja, Kachamakova-Trojanowska, Neli, Mieczkowski, Mateusz, Mucha, Olga, Podkalicka, Paulina, Stępniewski, Jacek, Łoboda, Agnieszka   +9 more
core   +1 more source