Results 1 to 10 of about 19,648 (262)

Effect of bile pigments on the compromised gut barrier function in a rat model of bile duct ligation. [PDF]

PLoS ONE, 2014
BACKGROUND: Studies have shown that the absence of bile in the gut lumen, either by bile duct ligation or bile diversion, induces mucosal injury. However, the mechanism remains elusive. In this study, the role of bile pigments in gut barrier function was
Kangkang Zhou, Mingshan Jiang, Yuanli Liu, Yilin Qu, Guojing Shi, Xinguang Yang, Xiaofa Qin, Xiuhong Wang   +7 more
doaj   +4 more sources

Bile pigments in emergency and critical care medicine [PDF]

European Journal of Medical Research, 2022
Bile pigments, such as bilirubin and biliverdin, are end products of the heme degradation pathway in mammals and are widely known for their cytotoxic effects.
Mizuki Seya, Toshiyuki Aokage, Tsuyoshi Nojima, Atsunori Nakao, Hiromichi Naito   +4 more
doaj   +2 more sources

Bile pigments in pulmonary and vascular disease [PDF]

Frontiers in Pharmacology, 2012
The bile pigments, biliverdin and bilirubin, are endogenously-derived substances generated during enzymatic heme degradation. These compounds have been shown to act as chemical antioxidants in vitro. Bilirubin formed in tissues circulates in the serum,
Stefan W. Ryter
doaj   +2 more sources

Evaluating the beneficial and detrimental effects of bile pigments in early and later life [PDF]

Frontiers in Pharmacology, 2012
The heme degradation pathway has been conserved throughout phylogeny and allows for the removal of a pro-oxidant and the generation of unique molecules including bile pigment with important cellular functions.
Phyllis A. Dennery
doaj   +2 more sources

Capsule endoscopy with flexible spectral imaging color enhancement reduces the bile pigment effect and improves the detectability of small bowel lesions [PDF]

BMC Gastroenterology, 2012
Background Capsule endoscopy with flexible spectral imaging color enhancement (CE-FICE) has been reported to improve the visualization and detection of small-bowel lesions, however, its clinical usefulness is still not established.
Sakai Eiji, Endo Hiroki, Kato Shingo, Matsuura Tetsuya, Tomeno Wataru, Taniguchi Leo, Uchiyama Takashi, Hata Yasuo, Yamada Eiji, Ohkubo Hidenori, Higrashi Takuma, Hosono Kunihiro, Takahashi Hirokazu, Nakajima Atsushi   +13 more
doaj   +2 more sources

Study on the correlation of electron spin resonance with pigment gallstones and trace Cu2+, Fe3+ in diet [PDF]

Scientific Reports
Through the analysis of electron paramagnetic resonance (EPR) spectra from patients with pigment gallstones, it was found that both Fe3+ and Cu2+ signals were detected in the gallstone powder, exhibiting relatively high intensity.
Jia-Xin Liu, Yan Liu, Qi-Hui Shen, Hongyang Lv, Weiao Li, Litiao Ren   +5 more
doaj   +2 more sources

The role of bile pigments in health and disease: effects on cell signaling, cytotoxicity and cytoprotection [PDF]

Frontiers in Pharmacology, 2012
Jaime eKapitulnik, Mahin D Maines
doaj   +2 more sources

Aqueous dissociation constants of bile pigments and sparingly soluble carboxylic acids by 13C NMR in aqueous dimethyl sulfoxide: effects of hydrogen bonding

Journal of Lipid Research, 1997
pKas for the acid dissociation of the carboxyl groups of bilirubin in water have been reported recently to be 8.1-8.4, or higher. These high values were attributed to intramolecular hydrogen bonding.
F R Trull, S Boiadjiev, D A Lightner, A F McDonagh   +3 more
doaj   +2 more sources

Studies on Bile Pigment in Bile

The Tohoku Journal of Experimental Medicine, 1958
Tomonobu Satô
  +10 more sources

Butterfly Wing Translucence Enables Enhanced Visual Signaling

Insects, 2023
The light reflected by the dorsal side of butterfly wings often functions as a signal for, e.g., mate choice, thermoregulation, and/or predator deterrence, while the ventral wing reflections are generally used for crypsis and camouflage. Here, we propose
Doekele G. Stavenga, Heinrich L. Leertouwer, Kentaro Arikawa   +2 more
doaj   +1 more source