[Redox-dependent ferric oxide nanoparticles loaded with doxorubicin and their influence on the functions of mitochondria].

The spectral, fluorescent and functional properties of ferric oxide and ferric hydroxide nanoparticles loaded with doxorubicin and stabilized with citric acid or lysine were studied in comparison with free doxorubicin. Their effect on the opening of calcium-induced mitochondrial pore and the possibility of the controlled release of doxorubicin under the influence of redox stimuli were investigated. The data show that the effect of nanoparticles on mitochondria depends on the type of a stabilizer. The spectral and fluorescence methods used allow us to estimate the presence or absence of free doxorubicin in solution of nanoparticles and the:concentration of bound doxorubicin. It is shown that the dithiotreitol and glutathione increase the amplitude of absorption and fluorescence of doxorubicin during incubation with nanoparticles. It is assumed that this effect may be associated with the reduction of the oxidized iron by thiols with subsequent release of doxorubicin.

[Personality and neurobiological factors as predictors of treatment efficacy in patients with partial epilepsy].

In the present study, we attempted to find predictors of the response to antiepileptic treatment with the adjustment for individual constitutional characteristics of patients including the profile of hemispheric asymmetry (right- and left handedness), premorbid personality, predisposition to affective and other mental disorders. We administered a large battery of tests (MMSE, HAM-A, HAM-D, TAS-26 and others). Treatment efficacy was assessed by the degree of seizure frequency reduction and remission duration. Two groups of patients, with 100% reduction of seizures after 12 months of treatment with antiepileptic drugs and with the absence of reduction of seizures, were singled out. It has been shown that left-handedness, cognitive impairment in right-handers, alexithymia and affective disorders in left-handers predict poor treatment efficacy.

[Mental disorders and cerebral sensomotor asymmetry in patients with epilepsy].

A neurological, psychiatric and instrumental (electroencephalography, computer tomography, etc.) study of 84 patients was aimed at assessing an effect of sensomotor asymmetry profile and side of the epileptic focus on semiotics of seizures and psychopathological presentations in partial epilepsy. A data analysis included 111 variables, i.e., psychometric and neuropsychological ones. Groups of patients with left and right profiles of functional interhemispheric asymmetry (LHA and RHA) were singled out. No between-group differences were found in severity of mental disturbances. However, cognitive functions were mostly affected in RHA and psychopathological phenomenon emerged mostly in LPA. The formation of multiple epileptic foci with the involvement of frontal and temporary lobes was the best predictor of mental disorders manifestation compared to age at disease onset, illness duration, frequency and severity of seizures.

[Modern approaches to human cognitive activity enhancement].

Recent literature on human cognitive activity enhancement is reviewed and summarized. Two classes of pharmacological approaches are picked out, i.e. modern aspects of traditional substance utilization and application of specially developed drugs. Among non-pharmacological approaches a number of psychological, physiological, behavioral and biophysical methods to improve human cognition, memory and learning are analyzed. The most attention is paid to non-drug approaches that utilize bioelectric processes of the individual including characteristics of its brain electrical activity--electroencephalogram (EEG) to enhance different aspects of cognitive functioning. Some promising lines of these investigations are delineated.

[Anticonvulsant and psychotropic effects of topamax capsules].

Anticonvulsant and psychotropic effects of "Topamax capsules"(TC) were compared to a traditional form of topiramate (TFT) and some other anticonvulsant drugs (ACD). Thirty-six patients (12 men and 24 women) with partial temporary epilepsy were examined. Sixteen patients received TFT in tablets and 20 patients received ACD before the beginning of the study. Drug effect was assessed by frequency of seizures and some neuropsychiatric parameters. The results revealed that TC was comparable to TFT and ACD in the reduction of seizures of any semiotics. After 3 months of therapy, total MMSE scores increased from 27 to 28. There were less perseverant errors and more right responses in the WCST. Verbal fluency and memory measured with Sunderland test improved as well. TC led to decreased latencies of negative responses in the WCST and increased verbal fluency compared to TFT. Patients who received TFT prior to TC did fewer errors in the WCST than patients who received ACD prior to TC. Verbal fluency improved compared to patients who received other ACD. At the same time, a somewhat increase of paranoid signs on the scale SCL-90 was noted in the group treated with topiramate only. It has been concluded that TC has an activating effect on frontal brain areas.

[Monotherapy of epilepsy in women: psychiatric and neuroendocrine aspects].

An aim of the study was a comparative evaluation of efficacy and safety of traditional and modern antiepileptic drugs in women of reproductive age. A main group of patients consisted of 65 women, including 48 patients with partial epilepsy and 17 - with idiopathic generalized epilepsy. Some issues are solved in the study of a larger group comprising 110 patients (65 female and 45 male). The following drugs have been studied: topamax, valproates, carbamazepines and barbiturates. All of them were used as a monotherapy. Patient's state was assessed using clinical, neuropsychological and hormonal parameters. A general conclusion is that topamax is most beneficial, comparing with other drugs studied, in the treatment of women with epilepsy.

[Psychotropic and cognitive effects of topiramate in the treatment of epileptic patients].

To study a character of topiramate (TPM) effect on psychopathological and neurocognitive processes in patients with temporal partial epilepsy, 83 patients (33 men and 50 women, mean age 29.1 +/- 10.6 years) were examined. Fifty-three patients were diagnosed with temporal cryptogenic epilepsy and 20 with temporal symptomatic epilepsy. Thirty-three patients received TPM (124 +/- 35.6 mg daily), 26--carbamazepine (819 +/- 274.2 mg daily), 15--phenobarbital (154.6 +/- 95.1 mg daily) and 11 patients received no therapy. The statistically significant difference between the groups treated with TPM and phenobarbital were found only for cognitive traits (total MMT scores, total scores on the executive functions scale, latencies of positive and negative answers in WCST, verbal fluency). TPM was more effective than phenobarbital for all traits, with the exception of verbal fluency. The comparison of patients by some parameters before and during the treatment with TPM revealed the favorable effect of the drug in the reduction of obsessive symptoms, aggressiveness and social isolation on the SCL-90 as well as higher scores on the executive functions scale and the lower latency of positive answer in WCST. The monotherapy with TPM leads to the improvement of executive functions, reduction of aggressive and obsessive symptoms that may be explained by the improvement of prefrontal brain function in epilepsy.

[Comparison of efficacy of trileptal (oxcarbazepine) and carbamazepine in the treatment of temporal epilepsy].

An aim of the study was to compare the spectrum of effects of oxcarbazepine and carbamazepine in patients with partial temporal epilepsy. Seventy-two patients (24 men and 48 women) diagnosed with cryptogenic partial epilepsy have been examined. Fifty-one patients received carbamazepine as a monotherapy in dosage 300-1200 mg/day, 21 patients were treated with oxcarbazepine in dosage 600-1500 mg daily. The results revealed the similar effects of two drugs. However some differences were also found: the effect of oxcarbazepine on complex partial seizures was more pronounced comparing to carbamazepine. These differences became evident after the first month of therapy and were related only with part of the reduction of complex partial seizures after 1, 2, and 3 month of therapy. The highest levels of significance for these differences for the complete reduction of complex partial seizures (a control over seizures) were observed after 2 and 3 months of therapy. During the therapy, oxcarbazepine was more effective than carbamazepine in the reduction of refractory complex partial seizures. In conclusion, oxcarbazepine can be considered as a drug of choice in the treatment of complex partial seizures in patients with partial epilepsy.

[A use of Magne-B6 in the treatment of anxiety-depressive states in patients with epilepsy]. / Primenenie preparata Magne-B6 dlia lecheniia trevozhno-depressivnykh sostoianii u bol'nykh épilepsiei.

Magne-B6 was used, together with anticonvulsive therapy, in the treatment of 25 patients with different forms of epilepsy. In all cases, psychiatric status of patients featured by depression, anxiety and some psychotic sighs. The drug was prescribed in the mean therapeutic dose during 28 days. Along with psychopathologic examination, a psychometric method, using self-rating scales for Zung anxiety and depression scale, SCL-90 and Global clinical impression (CGI) scale, was administered. Magne-B6 exerted a positive non-specific influence on patient's mental state, especially with regard to affective disorders. The positive effect of the drug emerged on 14th day of the treatment and achieved a statistically significant level to 28th day. The medication was more effective in asthenic and subdepressive syndromes, in encephalopathic syndrome the efficacy was lower. The drug was well tolerated and did not cause any side effects.

[Topamax monotherapy of partial epilepsy]. / Monoterapiia partsial'nykh form épilepsii topamaksom.

Thirty patients diagnosed with partial epilepsy (PE): 17 cases with cryptogenic PE, 11--with symptomatic PE and 2--with symptomatic generalized PE, have been switched to topamax monotherapy, in dosage 50-200 mg daily, for 3 months. A type of seizures--simple partial, complex partial and secondary generalized, was taken into account, when considering topamax efficacy. A complete elimination of seizures was achieved after 3 months treatment in 80% of the cases, the mostly pronounced effect being demonstrated for secondary generalized seizures. A decrease of seizures frequency was shown for all types, but in simple partial and secondary generalized seizures the effect emerged earlier (after 1 month of the treatment) comparing to complex partial seizures. Good tolerability of topamax was observed.

[Features of the endometrial steroid receptor system in habitual abortion with high risk of infectious complications]. / Osobennosti steroidretseptornogo apparata éndometriia pri privychnom nevynashivanii beremennosti s vysokim riskom infektsionnykh oslozhnenii.

Analysis of microbiologic and histologic findings and measurements of estrogen and gestagen receptors in the endometrium have shown manifest shifts in the endometrial steroid receptor system in women with asymptomatic chronic endometritis. The authors claim that disordered reception of steroid hormones may be regarded as one of the causes of spontaneous, abortions.

[Genital Mycoplasma as a risk factor of obstetric and perinatal pathology]. / Genital'nye mikoplazmy kak faktor riska razvitiia akusherskoi i perinatal'noi patologii.

The paper gives the results of the study into genital Mycoplasma in 1,200 females and 254 newborns and provides strong evidence for the fact that there is a relationship between the Mycoplasma carriage and the inflammatory urogenital processes. It also shows that M. hominis and Ur. urealyticum may persist in the endometrium of females suffering from isthmo-cervical insufficiency. Genital Mycoplasma have been found to play an etiological role in intrauterine infection in premature neonates and in inflammatory processes (endometritis, wound infection following cesarean section) in parturients.