Early Postnatal Experience Modifies Activation of the Pituitary Testicular Complex in Male House Mice (Mus Musculus) Exposed to the Odor of Receptive Con- and Heterospecific Females.

For the first time, it was shown that activation of the pituitary-testicular complex in male house mice exposed to the odor of receptive females of their own and closely related species was modified under the influence of early postnatal experience and the maternal environment. We have confirmed associated formation of behavioral and physiological mechanisms of precopulatory isolation in early ontogenesis. The serum levels of free testosterone in males of closely related species M.

Protective effects of Lactobacillus fermentum U-21 against paraquat-induced oxidative stress in Caenorhabditis elegans and mouse models.

The aims of this work were to identify in vivo manifestations of antioxidant activity of Lactobacillus strains isolated from healthy human biotopes and to show the possibility of protective action of the selected strain on the model of oxidative stress induced by paraquat in the model of early Parkinson's disease (PD) in mice. We studied the protective effects of 14 Lactobacillus strains belonging to five species on the lifespan of the soil nematode Caenorhabditis elegans experiencing oxidative stress induced by paraquat. The Lactobacillus strains used in this study were selected previously based on their ability to reduce oxidative stress in vitro.

[The public-private partnership in Russian health care: the regional aspect].

The health care problems are considered in detail both in the program and non-program activities of the sector state regulatory bodies. The public-private partnership, in particular, participation of private clinics in the system of mandatory health insurance can become one of the effective tools to cope with many problems. The article analyzes participation of private clinics in implementing territorial program of mandatory health insurance as exemplified by the Krasnodar Krai.

Effect of early experience on neuronal and behavioral responses to con- and heterospecific odors in closely related Mus taxa: epigenetic contribution in formation of precopulatory isolation.

Background: The most effective learning occurs during sensitive periods. Olfactory plasticity to main social olfactory cues is limited to a critical period to a large degree. The objective was to evaluate the influence of early olfactory experience on the behavioral and neuronal responses of males to con- and heterospecific odors of receptive females in two species, M.

Sleep-wakefulness cycle and behavior in pannexin1 knockout mice.

Pannexins are membrane channel proteins that play a role in a number of critical biological processes (Panchin et al., 2000; Shestopalov, Panchin, 2008). Among other cellular functions, pannexin hemichannels serve as purine nucleoside conduits providing ATP efflux into the extracellular space (Dahl, 2015), where it is rapidly degraded to adenosine.

[BLOCKING SENSORIMOTOR DISORDERS IN STRIATIC DOPAMINERGIC DEFICIENT MICE BY THE EXTRACTS OF "REMEDY BEETLE" ALPHITOBIUS DIAPERINUS].

Five groups of C57Bl/6JSto mice (groups 1-5) were tested on a vertical pole 2 weeks since subcutaneous administration of proneurotoxin MPTP (40 mg per kg b. w.) to groups 2-5.

[Influence of the Mother on the Behavior of Young Rabbits during the Prepubertal Period].

In this study, we investigate the influence of a mother on the behavior of young rabbits during the prepubertal period. It is shown that the presence ofthe mother affects the ratio of types of activity in offspring and the mother can demonstrate behavioral patterns to suppress aggressive behavior in offspring. It was found that rabbits in the prepubertal period continue to have active contact with their mother and make successful attempts at sucking.

[Detection of Volatile Organic Compounds Associated with Hepatocellular Carcinoma by Macrosmatic Animals: Approaches to the Search for New Tumor Markers].

Macrosmatic animals (dogs and mice) have been proved to be able to distinguish between the urine or feces of mice with transplanted hepatocellular carcinoma and those of healthy mice by odor. The chemical composition of animal excreta was found to change with tumor growth; however, it is not clear yet if this results from tumor growth itself, inflammation, or immune response. We suggested that the use of the ability of macrosmatic animals to compare odor mixtures combined with mouse cancer models is a promising trend in the search for new tumor markers.

[Relationship between characteristics of sexual behavior and male sperm competitive ability in taxa of superspecies complex Mus musculus sensu lato].

Some physiological parameters that determine quality of male sperm (its concentration, spermatozoa morphology) and testicle size vary in integrity, i.e. the bigger are testicles the higher is sperm quality.