High-frequency ultrasonic attenuation and backscatter coefficients of in vivo normal human dermis and subcutaneous fat

One of the most characteristic features of cancer cells is their ability to metastasia. It is suggested that the modifications of the structure and properties of cancer cells surfaces play the main role in this process. The present work was aimed at finding out what ultrastructural features apear in tumor in vivo which removal of individual cancer cells from the cell population can provide. For this purpose the cellular interactions in the normal human thyroid and cancer tumor of this gland electron microscopic were studied. The tissues were fixed in osmium tetroxide and were embedded in Araldite-Epon.In normal human thyroid the most common type of intercellular contacts was represented by simple junction formed by the parallelalignment of adjacent cell membranees leaving in between an intermembranes space 15-20 nm filled with electronlucid material (Fig. 1a). Sometimes in the basal part of cells dilatations of the intercellular space 40-50 nm wide were found (Fig. 1a). Here the cell surfaces may form single short microvilli.

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Presence and Possible Origin of ɛ(γ-Glutamyl)Lysine Isodipeptide in Human Plasma

Thrombosis and Haemostasis ◽

10.1055/s-0038-1648380 ◽

1992 ◽

Vol 67 (01) ◽

pp. 060-062 ◽

Cited By ~ 9

Author(s):

J Harsfalvi ◽

E Tarcsa ◽

M Udvardy ◽

G Zajka ◽

T Szarvas ◽

...

Keyword(s):

Human Plasma ◽

Fibrinolytic Therapy ◽

Normal Human Plasma ◽

Normal Human ◽

Hplc Technique ◽

Significant Change

Summaryɛ(γ-glutamyl)lysine isodipeptide has been detected in normal human plasma by a sensitive HPLC technique in a concentration of 1.9-3.6 μmol/1. Incubation of in vitro clotted plasma at 37° C for 12 h resulted in an increased amount of isodipeptide, and there was no further significant change when streptokinase was also present. Increased in vivo isodipeptide concentrations were also observed in hypercoagulable states and during fibrinolytic therapy.

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Аpplying of high-frequency monopolar diathermocoagulation in the treatment of chronic pulpitis

Medical alphabet ◽

10.33667/2078-5631-2020-12-40-42 ◽

2020 ◽

Vol 1 (12) ◽

pp. 40-42

Author(s):

F. Yu. Daurova ◽

D. I. Tomaeva ◽

S. V. Podkopaeva ◽

Yu. A. Taptun

Keyword(s):

Root Canal ◽

High Frequency ◽

Antibacterial Effect ◽

Comparison Group ◽

Poor Quality ◽

Endodontic Treatment ◽

Root Canals ◽

The Third ◽

Before And After

Relevance: the reason for the development of complications in endodontic treatment is poor-quality instrumental treatment root canals.Aims: a study of the animicrobial action and clinical efficacy of high-frequency monopolar diathermocoagulation in the treatment of chronic forms of pulpitis.Materials and methods: 102 patients with various chronic forms of pulpitis were divided into three groups of 34 patients each. In the first two groups, high-frequency monopolar diathermocoagulation was used in endodontic treatment in different modes. In the third group, endodontic treatment was carried out without the use of diathermocoagulation (comparison group). The root canal microflora in chronic pulpitis in vivo was studied twice-before and after diathermocoagulation.Results: it was established that high-frequency monopolar diathermocoagulation in the effect mode is 3, power is 4 (4.1 W) and effect is 4, power is 4 (5.4 W) with an exposure time of 3 seconds, it has a pronounced antibacterial effect on all presented pathogenic microflora obtained from the root canals of the teeth.

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