New records and new species of mites from Cuba, with description of a new genus of Laelapidae (Acari: Mesostigmata).

This paper presents a new genus, two new species, and several new records of mites associated with insects and soil in Cuba. A new monotypic genus of Laelapidae, Acantholaelaps gen. nov.

A new species of Cosmolaelaps Berlese (Acari: Laelapidae) from Ukraine.

This paper reports on a new species of mites of the genus Cosmolaelaps from Ukraine. Cosmolaelaps sidorchukae sp. nov.

New and little known species of Halolaelaps (Acari: Mesostigmata: Halolaelapidae) from Ukraine.

A new species of the family Halolaelapidae (Acari: Mesostigmata), Halolaelaps euxinus sp. nov. is described from Black Sea coast.

A new genus and species of Schizogyniidae (Acari: Mesostigmata) associated with carabid beetles (Coleoptera: Carabidae) from Ukraine.

A new genus and species of Schizogyniidae (Acari: Mesostigmata: Celaenopsoidea), Euroschizogynium calvum gen. nov. and sp.

Mites of the superfamily Pygmephoroidea (Acari: Heterostigmata: Neopygmephoridae, Pygmephoridae) associated with Trox cadaverinus (Coleoptera: Trogidae) from the Far East of Russia, with description of a new genus and two new species.

Three species of the superfamily Pygmephoroidea (Neopygmephoridae: Pygmephoridae), phoretic on Trox cadaverinus Illiger (Coleoptera: Trogidae) are recorded from the Far East of Russia. A new genus, Troxodania Khaustov and Trach gen. nov.

Platelet-activating factor antagonist WEB 2086 inhibits ultraviolet-B radiation-induced dermatitis in the human skin.

It has been suggested that platelet-activating factor (PAF) plays a role in the pathomechanisms of various inflammatory diseases. In an experimental animal model we demonstrated earlier that a selective PAF receptor antagonist gel inhibits ultraviolet-B (UVB) light-induced edema in mouse ears. The goal of our present investigation was to determine whether locally applied WEB 2086, a selective PAF receptor antagonist, alters the dermatitis-causing effect of UVB light on human skin.

Local tissue tolerability of meloxicam, a new NSAID: indications for parenteral, dermal and mucosal administration.

Meloxicam is a new non-steroidal anti-inflammatory drug (NSAID) which has potent anti-arthritic activity and a reduced potential to induce gastric irritation in animals. The present series of animal studies investigated the local and/or systemic tolerance of meloxicam formulations: intravenous, intramuscular and subcutaneous injections, eye-drops, gel and suppositories. The concentration and formulations were as intended for therapeutic use in man.

[Effect of intravenous administration of dalargin on the course and outcome of the body's response to acute massive hemorrhage].

Acute experiments on 74 adult rabbits have revealed that slow fractional jet blood exfusion of 16 +/- 1 ml/kg for 4-5 min results in reversible hemorrhagic shock, but when the volume of blood loss increases up to 23 +/- 3 ml/kg, a fatal shock occurs. The same outcome occurs when one-stage continuous jet blood loss reaches the volume of 16 +/- 3 ml/kg. Preadministration of dalargin, 0.

[Use of chloroplasts for herbicide detection after thin layer chromatography].

The procedure of spreading of native pea (Pisum sativum L.) chloroplasts and 2,4-dichlorophenolindophenol on thin-layer chromatographical plates is used to detect herbicides. The sensitivity of photosystem 2 inhibitors detecting ureas and simm-triazines, is 10 ng.

[The reinfusion of blood and the administration of dalargin in experimental hemorrhagic shock].

In acute experiment on 95 adult rabbits it was determined that during the subdivided blood exfusion from femoral artery in the volume of (16 + 1) ml/kg the reversible hemorrhagic shock occurs and the animals survive without the hemorrhage compensation. The increase of hemorrhage volume up to (23 + 3) ml/kg leads to lethal hemorrhagic shock. The heparinized blood reinfusion in the early period promotes the survival of the whole of animals, in the late period it promotes trustworthy their life span increase.

[Intravenous dalargin as a method of increasing the effectiveness of blood reinfusion in the late stages of hemorrhagic shock].

Acute experiments on 63 adult rabbits have shown that acute divided blood loss for 5 min (27 +/- 1% of the whole blood volume) results in the development of reversible hemorrhagic shock with survival of all the animals. In the same volume of continuous blood exfusion (27 +/- 5% of blood volume) or an increase in blood loss to 43 +/- 2% of blood volume hemorrhagic shock proved irreversible. Early reinfusion of heparinized blood saved all the animals, whereas late reinfusions only prolonged the survival.

Heat-induced reversible changes in Photosystem 1 absorption cross-section of pea chloroplasts and sub-chloroplast preparations : Evidence from excitation fluorescence spectra.

Reversible changes in the room temperature fluorescence quenching at 685 nm and light scattering level at 577 nm, indicating about 15% of granal unstacking, induced by high temperature treatment (40°C, for 5 min) of pea chloroplasts were shown. Analysis of the low temperature excitation fluorescence spectra of the 735 nm Photosystem 1 (PS 1) band (F735), in the 635-725 nm region, has revealed the involvement of light-harvesting (LHC 2, maxima at 650 and 676 nm) and the proximal Photosystem 2 antenna (maxima 668, 687 nm) in heat-induced enhancement of the PS 1 long wavelength antenna absorption cross-section. It was found that the two PS 1 sub-chloroplast preparations, achieved by the digitonin method, possessed different characteristics of this enhancement.

[The role of ecological factors and working conditions in the development of occupational pathology in the Donetsk region].

Among the factors producing effects on the formation of indexes of morbidity of the people working in Donbass, the main role is played by the ecological situation in the region, working conditions and lifestyle of the working people. On the basis of morbidity indexes analysis proposals and measures aimed at the preservation and improvement of health of the working people are formulated.

Removal of endothelial function in coronary resistance vessels by saponin.

Studies of the role of the endothelium in coronary resistance vessels are limited to investigations of endothelium-derived relaxing factor mediated effects using various blocking agents. Endothelium removal as an alternative approach, is restricted to larger epicardial vessels. This study demonstrates the effect of endothelial damage by saponin on coronary resistance vessels remaining intact within the heart.

Relation between lipolysis and glycolysis during ischemia in the isolated rat heart.

The relation between lipolysis and glycolysis during ischemia was investigated in isolated perfused rat hearts. In hearts perfused with 11 mM glucose, ischemia caused a marked increase of glycerol release from 10 to 33 nmol/g wt weight/min. Substrate-free perfusion induced an initial stimulation of glycerol release, but lipolysis was subsequently reduced to values comparable to normoxic conditions.

[Changes in the enzyme activity of flavinogenesis in the process of culturing the fungus Eremothecium ashbyii].

The activity of enzymes involved in the beginning (GTP cyclohydrolase) and terminal steps (riboflavin synthase EC 2.5.1.

[Activities of some yeast flavogenic enzymes in situ].

Effects of digitonin, dimethylsulfoxide and protamine sulfate on yeast Pichia guilliermondii were studied in order to produce cells with increased permeability and possessing the GTP-cyclohydrolase, riboflavinsynthetase and riboflavinkinase activities. The digitonin-treated cells exhibited a higher cyclohydrolase activity than the cell-free extracts; the activities of riboflavinsynthetase and riboflavinkinase in the cells and cell-free extracts were found to be similar. Treatment of cells with dimethylsulfoxide proved to be most effective to determine the activity of GTP-cyclohydrolase and also helpful to determine that of riboflavinsynthetase.