Results 61 to 70 of about 4,936,875 (304)

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Cross-linking – review of therapy options

Annales Academiae Medicae Silesiensis
Introduction: In recent years, keratoconus has become an increasingly prevalent eye disease, characterized by progressive thinning of the central or paracentral cornea.
Natalie Papachristoforou, Anthony Ueno, Kamila Ledwos, Jerzy Bartuś   +3 more
doaj   +1 more source

A colourimetric method for the determination of the degree of chemical cross-linking in aspartic acid-based polymer gels

eXPRESS Polymer Letters, 2015
A 2,4,6-trinitrobenzenesulphonic acid (TNBS)-based assay is developed to determine the degree of chemical cross-linking in aspartic acid-based polymer gels.
B. Gyarmati, N. Hegyesi, B. Pukanszky, A. Szilagyi   +3 more
doaj   +1 more source

The chemistry of the collagen cross-links. A convenient synthesis of the reduction products of several collagen cross-links and cross-link precursors [PDF]

Biochemical Journal, 1972
New synthetic routes to the reduction products of several collagen cross-links and cross-link precursors are described. By the use of these routes hydroxynorleucine, 5,6-dihydroxynorleucine, hydroxylysinonorleucine and hydroxylysinohydroxynorleucine can be synthesized via one common synthetic intermediate.
N R, Davis, A J, Bailey
openaire   +2 more sources

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Collagen cross-linking beyond corneal ectasia: A comprehensive review

Indian Journal of Ophthalmology
The history of corneal cross-linking (CXL) dates back to 2003 when some German scientists investigated possible treatments to harden the corneal structure to increase its resistance in ectatic corneal diseases.
Grigory A Osipyan, Husam Khraistin, Mohammad Jourieh   +2 more
doaj   +1 more source

Comparison Between Pulsed and Continuous Accelerated Corneal Cross-Linking Protocols

Clinical Ophthalmology, 2023
Mohamed Omar Yousif,1,2 Rania Serag Elkitkat,1,3– 5 Noha Abdelsadek Alaarag,1 Mouamen Moustafa Seleet,1 Ashraf Hassan Soliman1 1Ophthalmology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt; 2Maadi Eye Subspecialty Center, Cairo ...
Omar Yousif M, Elkitkat RS, Abdelsadek Alaarag N, Moustafa Seleet M, Hassan Soliman A   +4 more
doaj  

Micelle-Cross-Linked Hydrogels with Strain Stiffening Properties Regulated by Intramicellar Cross-Linking

Micelle-cross-linked hydrogels are promising candidates for tough hydrogels with a tailorable chemical composition, nanostructure, mechanical properties, and functionality.
Meng Huo (3161172), Zizhuo Zhao (9088349), Guangjie Song (5522210), Linlin Fan (603135)   +3 more
core   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Corneal densitometry changes post-CXL for keratoconus: Comparative evaluation of epithelium-off, contact lens-assisted, and transepithelial techniques

Indian Journal of Ophthalmology
Purpose: To evaluate changes in corneal backscattering after collagen cross-linking (CXL) for progressive keratoconus and compare its course with different techniques – standard epithelium-off CXL (SCXL), contact lens-assisted CXL (CACXL), and ...
Barkha Gupta, Chintan Malhotra, Supriya Dhar, Khushdeep Abhyapal, Arun K. Jain, Amit Gupta   +5 more
doaj   +1 more source