Beta-Blockers of Different Generations: Features of Influence on the Disturbances of Myocardial Energy Metabolism in Doxorubicin-Induced Chronic Heart Failure in Rats.

Beta-blockers are first-line drugs in the treatment of chronic heart failure (CHF). However, there is no consensus on the specific effects of the beta-blockers of the I-III generation on energy metabolism in CHF. The aim of this study is to conduct a study of beta-blockers of different generations on myocardial energy metabolism in experimental CHF.

[A case of acute purulent otitis media complicated by atypical mastoiditis on the background of an unverified HIV infection].

According to the literature, acute otitis media is complicated by mastoiditis in 0.15-1% of cases. In turn, mastoiditis can be complicated by meningitis, encephalitis, abscess of temporal lobe of brain and cerebellum, epidural and subdural abscesses, facial nerve paresis, labyrinthitis, phlegmon of soft tissues of neck, as well as subperiosteal abscess, which makes 7% in the structure of mastoiditis complications.

[Clinical observation of a patient with bilateral tuberculous otitis media developing against the background of HIV infection].

The lesion of middle ear as a variant of clinical manifestation of secondary tuberculosis, according to international scientific literature, is a rare condition. However, in terms of real clinical practice, the proportion of this pathology should not be underestimated due to the wide spread of tuberculosis infection among the population of developing countries, including the Russian Federation. One of the risk factors for the systemic spread of mycobacterial flora is a concomitant HIV infection, which often acts as an opportunistic pathological agent for tuberculosis.

[Characteristics of sleep disturbances related to substance use disorders].

Sleep disturbances are frequently observed in patients with substance use disorders during active use as well as in withdrawal period and in remission. However, there is limited information about the association between sleep disturbances and substance use disorders. This review summarizes results of the studies on specific characteristics of sleep disturbances related to alcohol, opioids and psychostimulants (cocaine) use.

Cannabis withdrawal in patients with and without opioid dependence.

Background: Cannabis use is common among opioid-dependent individuals, but little is known about cannabis withdrawal in this population.

Methods: Thirty inpatients (57% men) completed the Marijuana Quit Questionnaire (MJQQ) after completing acute heroin detoxification treatment in Saint Petersburg, Russia. The MJQQ collected data on motivations for quitting, withdrawal symptoms, and coping strategies used to help maintain abstinence during their most "serious" (self-defined) quit attempt made without formal treatment outside a controlled environment.