A curvilinear isogeometric framework for the electromechanical activation of thin muscular tissues

2021 ◽  
Vol 382 ◽  
pp. 113877
Author(s):  
Alessandro Nitti ◽  
Josef Kiendl ◽  
Alessio Gizzi ◽  
Alessandro Reali ◽  
Marco D. de Tullio
Keyword(s):  
Muscular Tissues

scholarly journals Analysis of electrocautery generated smoke by chromatographic-mass spectrometry

2016 ◽  
Vol 43 (2) ◽  
pp. 124-128 ◽  
Author(s):  
JEFFERSON KALIL ◽  
FRANCISCO B. T. PESSINE ◽  
CARLOS H. V. FIDELIS ◽  
FABIO H. MENEZES ◽  
PAULO CESAR RODRIGUES PALMA
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Components ◽  
Qualitative And Quantitative Analysis ◽  
Porcine Tissue ◽  
Qualitative And Quantitative ◽  
Hyphenated Technique ◽  
Muscular Tissues ◽  
Chromatographic Mass ◽  
Liver Tissues

ABSTRACT Objective: to analyze the chemical components of the smoke from electrocautery from coagulating muscle and liver tissues of pigs. Methods: we collected smoke produced by electrocautery applied to porcine tissue in previously evacuated bottles, with qualitative and quantitative analysis of the compounds present through the hyphenated technique gas chromatography / mass spectrometry. Results: there was a majority of decanal aldehyde in the fumes from the subcutaneous, muscle and liver tissues. Fumes of subcutaneous and muscular tissues also showed the presence of hexanal and phenol. In the fumes of subcutaneous and liver tissues we also found toluene and limonene and, finally, nonanal smoke was present in the muscle and liver tissues. Conclusion: there is increasing evidence showing that smoke from electrocautery used in subcutaneous, muscle and liver tissue is harmful to human health. Thus, there is need to reduce exposure to it or wear masks with filters capable of retaining these particles.

Creatine Phosphate as the Preferred Early Indicator of Ischemia in Muscular Tissues

1996 ◽  
Vol 61 (1) ◽  
pp. 227-236 ◽  
Author(s):  
Jiming Ye ◽  
Michael G. Clark ◽  
Eric Q. Colquhoun
Keyword(s):  
Creatine Phosphate ◽  
Early Indicator ◽  
Muscular Tissues

scholarly journals Histochemical analysis of skeletal muscular tissues of pigs according to genotype MYF4

2008 ◽  
Vol 24 (1-2) ◽  
pp. 117-126
Author(s):  
Vladimir Zimmermann ◽  
V. Kulísek ◽  
A. Copík ◽  
M. Odstrcil ◽  
Ondrej Debrecéni ◽  
...  
Keyword(s):  
Rectus Femoris ◽  
Muscle Fibres ◽  
Fat Cells ◽  
Average Thickness ◽  
Triceps Brachii ◽  
Surface Representation ◽  
Histochemical Analysis ◽  
Pcr Method ◽  
Muscular Tissues

The results of histochemical analysis of three muscles m. triceps brachii (MTB), m. longissimus thoracicus (MLT) and m. rectus femoris (MRF) of two groups of pigs created according to the genotypes MYF 4 are presented. Determination of MYF 4 genotypes was made by PCR method and for histochemical analysis was used 5 animals detected as homozygote MYF 4- AA type and 5 animals of heterozygote genotype myogenin-AB out of the total of 25 individual animals tested. The histochemical analysis proved that homozygotes AA have had bigger fat cells than heterozygotes AB in three studied muscles in average. The size of fat cells in MLT - 41.10?m or 38.50 ?m respectively dominated in both groups of animals. Percentage surface representation of interstitial tissues was higher in the studied muscles of heterozygote MYF 4-AB. The volume of ligaments was the highest in MRF (3.80% or 3.90% respectively) in both groups (myogenin - AA and AB). The average thickness was of three studied muscles muscle fibres higher at homozygote genotype myogenin-AA than in heterozygote myogenin-AB. The thickest fibres in both genotypes were in MRF (88.60 ?m, and 84.72 ?m respectively) and the lowest in MTB (73.30 and 69.40 ?m respectively). The highest values of muscle fibres thickness were detected in ?-White fibres. Their percentage surface representation corresponded to this in all three types of muscles of both studied genotype myogenin groups.

scholarly journals Combustion of a Female Body Due to an External Ignition Source

2020 ◽  
Vol 34 (2) ◽  
pp. 94-96
Author(s):  
Young Jin Cho ◽  
Hong Keun Ji ◽  
Sun Jae Kim ◽  
Kyu Young Lim ◽  
Dong Kyu Lee ◽  
...  
Keyword(s):  
Peripheral Blood ◽  
Female Body ◽  
Elderly Woman ◽  
The Elderly ◽  
The Body ◽  
Ignition Source ◽  
Toxic Chemicals ◽  
Living Room ◽  
Farming Village ◽  
Muscular Tissues

In November 2013, a case of sustained combustion of a female body was encountered in a Korean farming village. The body was almost completely incinerated from the neck to the knees, and other parts of the body, such as the head, arms, lower legs, and feet, were slightly damaged. The most likely external ignition source was the flame from a matchstick. The elderly woman was found incinerated on the floor of the living room, while other objects in the house were largely undamaged except for having a brown oily or greasy coating. Flammable substances were not detected from the woman’s intact pieces of clothing and socks, and her muscular tissues did not contain toxic chemicals. The concentration of carboxyhemoglobin in her peripheral blood was 11% and that of ethyl alcohol in her aqueous humor was below 0.010%. An autopsy failed to determine the exact cause of death because of excessive charring.

Inhibitory Glutamate Receptor Channels in Cultured Lobster Stomatogastric Neurons

1998 ◽  
Vol 79 (6) ◽  
pp. 3189-3196 ◽  
Author(s):  
Thomas A. Cleland ◽  
Allen I. Selverston
Keyword(s):  
Glutamate Receptor ◽  
Gaba Receptor ◽  
Kynurenic Acid ◽  
Channel Blocker ◽  
Spiny Lobster ◽  
Hill Coefficient ◽  
Chloride Channel Blocker ◽  
The Mean ◽  
Mean Variance ◽  
Muscular Tissues

Cleland, Thomas A. and Allen I. Selverston. Inhibitory glutamate receptor channels in cultured lobster stomatogastric neurons. J. Neurophysiol. 79: 3189–3196, 1998. Inhibitory glutamate receptor channels (IGluRs) are ligand-gated ionotropic receptors related to ionotropic γ-aminobutyric acid (GABA) and glycine receptors and expressed in neural and muscular tissues. In the crustacean stomatogastric ganglion (STG), IGluRs mediate recurrent synaptic inhibition central to the rhythmogenic capabilities of its embedded neural circuits. IGluRs expressed in cultured spiny lobster STG neurons exhibited an EC50 of 1.2 mM and a Hill coefficient of 1.4. They were neither cross-activated nor cross-desensitized by GABA, although a distinct GABA-gated chloride current was observed. Glycine did not evoke any current from STG neurons. The IGluR was weakly blocked by the chloride channel blocker furosemide and the excitatory glutamate receptor antagonist6-cyano-7-nitroquinoxaline-2,3-dione (CNQX), but was not inhibited by bicuculline methiodide, strychnine, kynurenic acid,γ-d-glutamylglycine, or aspartate. Outside-out patch-clamp recordings were analyzed using the mean-variance histogram technique. Under excised-patch conditions, the receptor exhibited only a single open state with an estimated unitary conductance of 80 ± 8.6 (SD) pS. The distinct GABA receptor also displayed a single open state with a conductance of 72 ± 10 pS.

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