scholarly journals Noninvasive Estimation of Plasma Sodium Concentration During Hemodialysis via Capacitively Coupled Electrical Impedance Spectroscopy

2020 ◽  
Vol 69 (4) ◽  
pp. 1673-1681 ◽  
Author(s):  
Enrico Ravagli ◽  
Marco Crescentini ◽  
Paolo Rovatti ◽  
Stefano Severi
Keyword(s):  
Impedance Spectroscopy ◽  
Electrical Impedance ◽  
Sodium Concentration ◽  
Electrical Impedance Spectroscopy ◽  
Plasma Sodium ◽  
Capacitively Coupled ◽  
Noninvasive Estimation ◽  
Plasma Sodium Concentration

SURVEY IN SERUM ADH CONCENTRATION IN TRAUMATIC BRAIN INJURY PATIENTS

2014 ◽  
pp. 83-89
Author(s):  
Dung Ngo ◽  
Thi Nhan Nguyen ◽  
Khanh Hoang
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Osmotic Pressure ◽  
Negative Correlation ◽  
Closed Head Injury ◽  
Serum Levels ◽  
Sodium Concentration ◽  
Plasma Sodium ◽  
Plasma Sodium Concentration ◽  
Closed Head

Objective: Study on 106 patients with closed head injury, assessment of serum ADH concentration, correlation with Glasgow score, sodium and plasma osmotic pressure. Patients and methods: Patients with closed head injuries were diagnosed determined by computerized tomography, admitted to the Hue Central Hospital 72 hours ago. Results: (i) Serum concentration of ADH 42.21 ± 47.80 pg/ml. (ii) There is a negative correlation between serum levels of ADH with: (1) Glasgow point r = -0.323, p <0.01; (2) Plasma sodium concentration r = - 0.211, p > 0.05; (3) Plasma osmotic pressure r = - 0.218, p> 0.05. Conclusion: There is a negative correlation between serum levels of ADH with Glasgow scale, plasma sodium concentration and osmotic pressure in plasma. Key words: ADH traumatic brain injury.

scholarly journals Effects of Tissue Sodium Storage on Plasma Sodium Concentration in Response to Hypo- and Hypertonic Stimuli

Nephron ◽  
2021 ◽  
pp. 1-3
Author(s):  
Rosa D. Wouda ◽  
Rik H.G. Olde Engberink ◽  
Eliane F.E. Wenstedt ◽  
Jetta J. Oppelaar ◽  
Liffert Vogt
Keyword(s):  
Sodium Concentration ◽  
Plasma Sodium ◽  
Plasma Sodium Concentration ◽  
Sodium Storage ◽  
Tissue Sodium

A Rapid Approach to Measure Extracted Chlorophyll-a from Lettuce Leaves using Electrical Impedance Spectroscopy

2021 ◽  
Vol 232 (2) ◽  
Author(s):  
Rakibul Islam Chowdhury ◽  
Rinku Basak ◽  
Khan Arif Wahid ◽  
Katy Nugent ◽  
Helen Baulch
Keyword(s):  
Impedance Spectroscopy ◽  
Chlorophyll A ◽  
Electrical Impedance ◽  
Electrical Impedance Spectroscopy

scholarly journals Study of Reduced Graphene Oxide Dispersions via Electrical Impedance Spectroscopy

2020 ◽  
Vol 28 ◽  
pp. 1679-1685
Author(s):  
Angeliki-Eirini Dimou ◽  
Ioanna Sakellariou ◽  
George M. Maistros ◽  
Nikolaos D. Alexopoulos
Keyword(s):  
Graphene Oxide ◽  
Impedance Spectroscopy ◽  
Reduced Graphene Oxide ◽  
Electrical Impedance ◽  
Electrical Impedance Spectroscopy ◽  
Reduced Graphene

scholarly journals Utilization of Electrical Impedance Spectroscopy and Image Classification for Non-Invasive Early Assessment of Meat Freshness

Sensors ◽  
2021 ◽  
Vol 21 (3) ◽  
pp. 1001
Author(s):  
Sooin Huh ◽  
Hye-Jin Kim ◽  
Seungah Lee ◽  
Jinwoo Cho ◽  
Aera Jang ◽  
...  
Keyword(s):  
Impedance Spectroscopy ◽  
Prediction Accuracy ◽  
Electrical Impedance ◽  
Thiobarbituric Acid ◽  
Electrical Impedance Spectroscopy ◽  
Plate Count ◽  
Gradient Boosting ◽  
Composition Analysis ◽  
Early Assessment ◽  
Relative Standard

This study presents a system for assessing the freshness of meat with electrical impedance spectroscopy (EIS) in the frequency range of 125 Hz to 128 kHz combined with an image classifier for non-destructive and low-cost applications. The freshness standard is established by measuring the aerobic plate count (APC), 2-thiobarbituric acid reactive substances (TBARS), and composition analysis (crude fat, crude protein, and moisture) values of the microbiological detection to represent the correlation between EIS and meat freshness. The EIS and images of meat are combined to predict the freshness with the Adaboost classification and gradient boosting regression algorithms. As a result, when the elapsed time of beef storage for 48 h is classified into three classes, the time prediction accuracy is up to 85% compared to prediction accuracy of 56.7% when only images are used without EIS information. Significantly, the relative standard deviation (RSD) of APC and TBARS value predictions with EIS and images datum achieves 0.890 and 0.678, respectively.

Electrical impedance spectroscopy for the characterization of skin barrier in atopic dermatitis

Allergy ◽  
2021 ◽  
Author(s):  
Arturo O. Rinaldi ◽  
Angelica Korsfeldt ◽  
Siobhan Ward ◽  
Daniel Burla ◽  
Anita Dreher ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Impedance Spectroscopy ◽  
Electrical Impedance ◽  
Skin Barrier ◽  
Electrical Impedance Spectroscopy

Effects of homologous atrial natriuretic peptide on drinking and plasma ANG II level in eels

1998 ◽  
Vol 275 (5) ◽  
pp. R1605-R1610 ◽  
Author(s):  
Takamasa Tsuchida ◽  
Yoshio Takei
Keyword(s):  
Atrial Natriuretic Peptide ◽  
Natriuretic Peptide ◽  
Direct Action ◽  
Sodium Concentration ◽  
Saline Infusion ◽  
Plasma Sodium ◽  
Ang Ii ◽  
Drinking Rate ◽  
Plasma Sodium Concentration ◽  
Atrial Natriuretic

The effects of eel atrial natriuretic peptide (ANP) on drinking were investigated in eels adapted to freshwater (FW) or seawater (SW) or in FW eels whose drinking was stimulated by a 2-ml hemorrhage. An intra-arterial infusion of ANP (0.3–3.0 pmol ⋅ kg−1 ⋅ min−1), which increased plasma ANP level 1.5- to 20-fold, inhibited drinking dose dependently in all groups of eels. The drinking rate recovered to the level before ANP infusion within 2 h after infusate was replaced by saline. The inhibition at 3.0 pmol ⋅ kg−1 ⋅ min−1was profound in FW eels and hemorrhaged FW eels, whereas significant drinking still remained after inhibition in SW eels. Plasma ANG II concentration also decreased dose dependently during ANP infusion and recovered to the initial level after saline infusion in all groups of eels. The decrease at 3.0 pmol ⋅ kg−1 ⋅ min−1was large in FW eels and hemorrhaged FW eels compared with that of SW eels. Thus the changes in drinking rate and plasma ANG II level were parallel during ANP infusion. Plasma sodium concentration and osmolality decreased during ANP infusion in SW and FW eels, and they were restored after saline infusion. In hemorrhaged FW eels, however, ANP infusion did not alter plasma sodium concentration and osmolality. Hematocrit did not change during ANP infusion in any group of eels. Collectively, ANP infusion at physiological doses decreased drinking rate and plasma ANG II concentration in parallel in both FW and SW eels. It remains undetermined whether the inhibition of drinking is caused by direct action of ANP or through inhibition of ANG II, which is known as a potent dipsogen in all vertebrate species, including eels.

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