Ammonia absorption from different parts of chicken intestine and its quantitative evaluation in situ

Expression of the avian antigen SMP (Schwann cell Myelin Protein, Mr 75-80000), first characterized in the PNS with a monoclonal antibody as an early and strictly specific Schwann cell marker, was further studied in the CNS. Comparing SMP immunoreactive areas in the different parts of the CNS with those expressing the Myelin Basic Protein (MBP), we showed a strict colocalisation of both phenotypes. In vitro, MBP+ oligodendrocytes express the surface antigen SMP as well. SMP cellular expression was followed in situ and in culture using nervous tissues from embryos at different stages. We were thus able to detect an early expression of this marker by oligodendroblasts before the first appearance of MBP immunoreactivity. We have also identified a subpopulation of SMP+/MBP- and SMP+/GC- cells, which persists under our culture conditions as precursors remaining in an immature state.

Download Full-text

A Novel Ultrasonic Technique for in situ Quantitative Evaluation of Corrosion Rates

10.1115/1.0002285v ◽

2021 ◽

Author(s):

Fangxin Zou

Keyword(s):

Quantitative Evaluation ◽

Ultrasonic Technique ◽

Corrosion Rates

Download Full-text

Comparative Microbial Conversion of Deoxynivalenol and Acetylated Deoxynivalenol in Different Parts of the Chicken Intestine as Detected In Vitro and Translated to the In Vivo Situation

Journal of Agricultural and Food Chemistry ◽

10.1021/acs.jafc.1c05278 ◽

2021 ◽

Author(s):

Jing Jin ◽

Mouhamed Fall ◽

Qijun Liu ◽

Ivonne M.C.M. Rietjens ◽

Fuguo Xing

Keyword(s):

Microbial Conversion ◽

Chicken Intestine ◽

Different Parts

Download Full-text

A 3D cell printing-fabricated HepG2 liver spheroid model for high-content in situ quantification of drug-induced liver toxicity

Biomaterials Science ◽

10.1039/d1bm00749a ◽

2021 ◽

Author(s):

Sera Hong ◽

Joon Myong Song

Keyword(s):

3D Printing ◽

Quantitative Evaluation ◽

Liver Toxicity ◽

Drug Induced ◽

Spheroid Culture ◽

Cell Printing ◽

Culture Model

A 3D printing-based HepG2 liver spheroid culture model was developed for in situ quantitative evaluation and high-content monitoring of drug-induced hepatotoxicity.

Download Full-text

Static Pressure-Volume Curves for the Lung of the Frog (Rana Pipiens)

Journal of Experimental Biology ◽

10.1242/jeb.76.1.149 ◽

1978 ◽

Vol 76 (1) ◽

pp. 149-165 ◽

Cited By ~ 2

Author(s):

G. M. HUGHES ◽

G. A. VERGARA

Keyword(s):

Volume Change ◽

Rana Pipiens ◽

Static Pressure ◽

Large Diameter ◽

The Difference ◽

Isolated Lungs ◽

Precise Role ◽

Different Parts

1. Static pressure/volume curves have been determined for isolated frog lungs inflated with either air or saline. In both cases a hysteresis was present: the pressure required to produce unit change of volume being greater during inflation than deflation. 2. The pressure necessary for a given volume change was less for the saline-filled than the air-filled lungs. The difference between these curves is due to the surface tension at the air/lung interface. 3. Pressure/volume curves for air-filled lungs in situ were similar to curves for isolated lungs. However, a greater pressure was required for the same volume change during both inflation and deflation. 4. Compliance was calculated from different parts of air pressure/volume curves and gave values greater than those obtained using similar calculations for higher vertebrates. 5. These observations support other evidence for the presence of a surfactant in the lung lining of frogs in spite of the relatively large diameter of their ‘alveoli.’ The precise role of such a lining is uncertain and it is concluded that similar forces may be involved during the inflation and deflation of lungs of frogs and higher vertebrates in spite of differences in gross morphology.

Download Full-text