Results 81 to 90 of about 13,092 (226)

Zinc ion flux during mammalian sperm capacitation

Nature Communications, 2018
During sperm capacitation physiological changes occur that are required for fertilization. Here, the authors describe four sperm zinc signatures during invitro capacitation that are indicative of sperm quality and capacity to fertilize.
Karl Kerns, Michal Zigo, Erma Z. Drobnis, Miriam Sutovsky, Peter Sutovsky   +4 more
doaj   +1 more source

The demography of an Osprey population under natural recolonisation and translocation processes

Ibis, EarlyView.
In a context of global biodiversity loss, studying the processes underlying the recolonisation—whether natural or assisted—of expanding species provides essential insights for the development of effective conservation strategies. Since the 1980s, the Osprey Pandion haliaetus has naturally recolonized mainland central and eastern France, increasing from
Marie Thalhammer, Rolf Wahl, Paul Lesclaux, Ségolène Faust, Clément Ganier, Christophe Barbraud, Olivier Duriez   +6 more
wiley   +1 more source

Enhancing the reliability of skin tone evaluation: A study of full‐face imaging devices with colour calibration

International Journal of Cosmetic Science, EarlyView.
This study offers insights into colour measurement for skin tone evaluation, demonstrating the value of using a ColorChecker and colour calibration to ensure reliable and accurate skin tone measurements. Abstract Background Skin colour measurement is common and essential to clinical evaluation, especially for product efficacy evaluation and research on
Wenyang Wang, Yang Wang, Chanjuan Liu, Andrew Steel, Frédéric Flament   +4 more
wiley   +1 more source

Targeted keratin repair: A plant‐based approach to hair strength and surface restoration

International Journal of Cosmetic Science, EarlyView.
Application of Avena strigosa seed extract may reinforce keratin bonding, restoring hair fibre integrity by promoting intramolecular interactions at damaged sites of keratin proteins. Abstract Objective Chemical and thermal stress disrupts the intramolecular and intermolecular interactions that stabilize hair keratin, leading to structural degradation ...
Emina Besic Gyenge, Loya Schoeffel, Stefan Hettwer, Andreas Bosch, Cosimo Kropp, Brigit Suter, Barbara Obermayer   +6 more
wiley   +1 more source

Heterogeneity in Fluorescence-Stained Sperm Membrane Patterns and Their Dynamic Changes Towards Fertilization in Mice

Frontiers in Bioscience-Landmark
Background: Sperm represent a heterogeneous population crucial for male reproductive success. Additionally, sperm undergo dynamic changes during maturation and capacitation.
Momoka Hirai, Satoshi Kishigami
doaj   +1 more source

Unravelling polyphenol skin permeation: A comparative study using full‐thickness 3D in vitro and ex vivo human skin models

International Journal of Cosmetic Science, EarlyView.
This study demonstrates that full‐thickness 3D in vitro skin models reliably assess the permeation of cosmetic polyphenols, revealing compound‐specific transport profiles and bridging the gap between conventional cell models and ex vivo human skin, while offering an ethical and robust alternative for dermal absorption screening. Abstract The evaluation
Mariana Marques, Filipa Teixeira, Mónica Vieira, M. Helena Amaral, Paulo C. Costa, Stefano Dall'Acqua, Francisca Rodrigues   +6 more
wiley   +1 more source

Protective effects of extracellular vesicle‐like nanoparticles derived from Cannabis sativa adventitious roots against UVB‐induced damage in human keratinocytes

International Journal of Cosmetic Science, EarlyView.
Cannabis sativa root‐derived extracellular vesicle‐like nanoparticles (CA‐NPs) were isolated from adventitious root cultures and subjected to physicochemical characterization. Upon UVB exposure, keratinocytes exhibited increased ROS generation, apoptosis and MAPK activation, leading to oxidative stress and skin damage.
Dong Ho Bak, Su Hyun Park, Young Bae Ryu, Cha Young Kim, Jae Cheol Jeong, Woo Sik Kim   +5 more
wiley   +1 more source

Bakuchiol: From structural mimicry to systems‐level skin biology

International Journal of Cosmetic Science, EarlyView.
Convergent outcomes, divergent mechanisms: bakuchiol vs. retinol. Bakuchiol exhibits functional convergence with retinol in improving extracellular matrix integrity, epidermal differentiation and barrier function, while operating through distinct mechanisms.
Ratan K. Chaudhuri
wiley   +1 more source

Synergistic enhancement SPF from annatto seed oil and alkaline extracts in association with organic UV filters

International Journal of Cosmetic Science, EarlyView.
An SPF formulation incorporating Bixa orellana seed extracts and oils showed enhanced UV protection, highlighting the potential of natural bioactive compounds as effective boosters in photoprotective cosmetic products. Abstract Objective This study investigated the antioxidant activity of oil and alkaline aqueous extracts obtained from Bixa orellana ...
Ister Cordeiro Mariotini, Aliny Rodrigues de Jesus da Conceição, Rodrigo Rezende Kitagawa, Bernardo de Jesus Pavuna, Claudia Masrouah Jamal, Claudineia Aparecida Sales de Oliveira Pinto, André Rolim Baby, Fabiana Vieira Lima Solino Pessoa, Mariana Santos Pinheiro   +8 more
wiley   +1 more source

A film of tuberose polysaccharide supports normal epidermal keratinization by suppressing cytokine release induced by external stimuli

International Journal of Cosmetic Science, EarlyView.
(a) Dry, rough skin has an immature stratum corneum prone to stimuli, triggering IL‐1α/IL‐1ra/IL‐8 release, keratinization defects, reduced ceramide NP/NS and lipids, scaling and poor hydration. (b) TPS forms a flexible reticular film, shielding the SC, lowering cytokines, normalizing differentiation, restoring lipids and improving texture and water ...
Junko Ishikawa, Yuka Yasuda
wiley   +1 more source