Cerebrovascular Accident in a Patient with Polycythemia: a Case Report

Polycythemia vera is not only a clonal disease that causes hematopoietic stem cells, but also a pathology that often leads to thrombotic complications. Thrombosis can have different localization and is clinically manifested by stroke, myocardial infarction, deep vein thrombosis of the lower extremities, pulmonary embolism, thrombosis of the veins of internal organs and other conditions. One of the most formidable thrombotic complications is acute cerebrovascular accident. The heterogeneity of the possible causes of acute cerebrovascular accident requires a careful approach to differential diagnosis for timely diagnosis and individual, pathogenetically grounded selection of means of long-term antithrombotic therapy. The presented clinical case of the development of cerebrovascular accident in a patient with polycythemia vera demonstrates the importance of an informal approach to diagnosis, as well as interdisciplinary interaction for finding the true cause of the development of acute cerebrovascular accident and the appointment of pathogenetically based treatment, aimed, among other things, at the prevention of repeated episodes of acute cerebrovascular accident and others. thrombotic complications

A cytogenetic follow-up of some highly irradiated victims of the Chernobyl accident

Altres ajuts: The authors wish to thank INTAS (research grant no. 97-1152) for financial support for this workA follo w-up of 10 highly irradiated men, mostly reactor crew, from the Chernobyl accident is described. Their pre-accident medical conditions and relevant medical status approximately 10-13 y later are listed. A comparison is made between estimates of their average whole-body penetrating radiation doses derived from several biological parameters. First estimates were based on their presenting severity of prodromal sickness, early changes in blood cell counts and dicentric chromosome aberrations in lymphocytes. In three cases ESR measurements on tooth enamel were also made. Retrospective dosimetry using FISH translocations was attempted 10-13 y later. This showed good agreement for those patients with the lower earlier dose estimates, up to about 3 Gy. For the others, extending up to about 12 Gy, the translocations indicated lower values, suggesting that in these cases translocations had somewhat declined. Repeated chromosomal examinations during the follow-up period showed an expected decline in dicentric frequencies. The pattern of decline was bi-phasic with a more rapid first phase, with a half-life of ∼4 months followed by a slower decline with half-lives around 2-4 y. The rapid phase persisted for a longer time in those patients who had received the highest doses. 10-13 y later dicentric levels were still above normal background, but well below the translocation frequencies

Beeldcultuur, een drieluik.I: Deconstructie van het fenomeen culturele studies

An important process in glass manufacture is the forming of the product. The forming process takes place at high rate, involves extreme temperatures and is characterised by large deformations. The process can be modelled as a coupled thermodynamical/mechanical problem including the interaction between glass, air and equipment. In this paper a general mathematical model for glass forming is derived, which is specified for different forming processes, in particular pressing and blowing. The model should be able to correctly represent the flow of the glass and the energy exchange during the process. Various modelling aspects are discussed for each process, while several key issues, such as the motion of the plunger and the evolution of the glass-air interfaces, are examined thoroughly. Finally, some examples of process simulations for existing simulation tools are provided

CHOLESTEROL PARADOX IN PATIENTS WITH CHRONIC CARDIAC INSUFFICIENCY MODERN STATE OF THE PROBLEM

Chronic cardiac insufficiency (CCI) is a wide-spread disease among the population of the Russian Federation and, as a rule, it is related to presence of the ischemic heart disease (IHD). Hypercholesterinemia is the major risk factor of IHD development but, however paradoxical it might seem, IHD patients often present a low cholesterol level, which, in its turn, is associated with the bad forecast. Reduction of the cholesterol level by statins reduces the incidence and mortality rate in IHD patients without CCI and possible improves the forecast in patients with CCI. But results of a number of studies testify that the high cholesterol level in patients with CCI is associated with better survival rates. This article provides data on the cholesterol paradox in CCI patients, its possible mechanisms and modern algorithms of the above-stated patients group management

Basic principles of primary prevention of type 2 diabetes mellitus

Type 2 diabetes mellitus is one of the main health problems not only in our country, but also in the world. Due to the steady rise in the number of persons with DM, it is extremely important to pay due attention to preventive measures aimed at reducing the prevalence of type 2 diabetes. The article describes the main principles of primary non-drug prevention of type 2 diabetes mellitus

OMEGA-3 FATTY ACIDS AND AGE-RELATED DISEASES: REALITIES AND PROSPECTS

Efficacy of omega-3 fatty acids in cardiology is so high that in many countries omega-3 fatty acids are included into the treatment protocols for patients with cardiovascular diseases. This therapeutic class slows down oxidative stress and chronic inflammation processes, thereby providing a significant contribution to the complex treatment of hypertension. Besides, omega-3 fatty acids slow down the aging process and prevent the development of age-related diseases affecting the rate of telomere shortening.</p

TELOMERES AND TELOMERASE COMPLEX. THE MAIN CLINICAL MANIFESTATION OF GENETIC MALFUNCTIONING

Telomeres and telomerase complex have got be known by scientists not long ago. At the current moment there quite large data on this topic collected. The row of diseases has been described that are caused by "shelterin" genes mutations, genes of telomerase complex subunits genes associated with telomeres. There is direct correlation of telomere length decrease and the risk of variety of diseases, including cardiovascular disorders. The review concerns on history, structure andfunction of telomeres and telomerase complex; the diseases are described that occur due to the damage of the structures mentioned

OMEGA-3 FATTY ACIDS AND AGE-RELATED DISEASES: REALITIES AND PROSPECTS

Efficacy of omega-3 fatty acids in cardiology is so high that in many countries omega-3 fatty acids are included into the treatment protocols for patients with cardiovascular diseases. This therapeutic class slows down oxidative stress and chronic inflammation processes, thereby providing a significant contribution to the complex treatment of hypertension. Besides, omega-3 fatty acids slow down the aging process and prevent the development of age-related diseases affecting the rate of telomere shortening