The role of endothelial dysfunction and subclinical inflammation in the development of obstetric and perinatal complications in diabetes mellitus patients

Diabetes mellitus in pregnant women is one of the topical problems of modern medicine. Recently, there has been an increase in cases of type 2 diabetes, especially an increase in the frequency of early onset in children and adolescents, respectively, in the fertile age, in a few years; they will enter with the burden of pathology. This is particularly problematic and important during pregnancy, since type 1 and type 2 diabetes are accompanied by a high risk of adverse obstetric and perinatal complications, which are detected in most women with type 1 and type 2 diabetes. The purpose of this review was to assess the role of vascular endothelial dysfunction and subclinical inflammation in the genesis of placental insufficiency causing the development of a number of pregnancy complications in diabetes mellitus, to search for biological markers of these processes, which may reveal some pathogenetic mechanisms for the formation and diagnosis of these disorders.The review shows changes in the content of a number of biological markers, primarily such as pro-inflammatory cytokines (IL-1, TNFα, IL-6); CRP, for certain pregnancy complications in diabetes mellitus women. It is the imbalance of cytokines that very often determines the development of gestational complications and disrupts immunological tolerance in the mother-placenta-fetus system. The degree of severity of angiogenesis processes depends on the level of hyperglycemia, manifestations of subclinical inflammation and is reflected in the increase in the VEGF expression level and its receptors in terminal and stem villi of the placenta.Thus, the review shows the role of endothelial dysfunction and subclinical inflammation in the development of obstetric and perinatal complications in diabetes mellitus patients, which is indicated by the changes in a range of proinflammatory cytokines and other biologically active markers

Modern Trends Functioning of the Insurance Services Market of Russia

At the present stage, there is a further development of the insurance market, which is associated with the integration processes taking place on it, affecting the participants of insurance activities. The changes observed in various segments of the economy lead to increase in various risks and increase the need for insurance services. In Russia, one of the problems is a small set of proposed insurance services, which affects the development of the insurance market. The purpose of the article is to assess the current state of the insurance services market in Russia and identify problems arising in its functioning. The research methodology consists in the synthesis and comparison of data characterizing various components of the insurance services market. The authors identify the trends that have developed on the market of insurance in Russia, assesses the current situation according to different criteria, revealed the factors of development of insurance business, as well as the problem aspects of the insurance industry. The study showed the presence of high dependence of insurance in Russia on the prevailing political and economic way of life here, which led to the domination of demand for certain insurance products. As a result, it can be noted that the development of the modern market of insurance is associated with the need for state support, which consists in creating conditions for the adequate functioning of the insurance market. The authors substantiate the need to develop an insurance ideology and bring its essence to the population

Damaging effects of ecologically unfavorable environmental factors on the health of descendants

Aim. To determine the possible damaging effects of ecologically unfavorable environmental factors (radiation and chemical) on the health of descendants. Methods. The cross-sectional study included 232 women of the Altai territory, who were divided into three groups: the first group included the descendants of persons who were in the area of radiation exposure, the second one - the descendants of chemical workers, the third group was the control group. As part of the expedition trip to the study areas, the collection of clinical and anamnestic data, the study of extragenital, gynecological morbidity, laboratory and functional methods of research were carried out. Results. The data were obtained confirming the most damaging effect on reproductive health in the descendants of persons who were in the area of radiation exposure. It was the first group where the high frequency of extragenital and gynecological pathology was revealed. At the same time, the reproductive function of women, closely related to functional changes in the immune system, was disordered. The results of the study of a number of parameters of the immune system revealed changes in the functioning of cellular immunity, increase in the level of proinflammatory cytokines (tumor necrosis factor), mainly in the descendants of persons who were in the area of radiation exposure, in contrast to the descendants of workers of chemical production and control group. Conclusion. A comparative assessment of some health parameters of descendants of persons exposed to radiation and chemical factors showed that the most damaging effect on the reproductive health of descendants is caused by radiation factor

Flower proteome: changes in protein spectrum during the advanced stages of rose petal development

Flowering is a unique and highly programmed process, but hardly anything is known about the developmentally regulated proteome changes in petals. Here, we employed proteomic technologies to study petal development in rose ( Rosa hybrida ). Using two-dimensional polyacrylamide gel electrophoresis, we generated stage-specific (closed bud, mature flower and flower at anthesis) petal protein maps with ca. 1,000 unique protein spots. Expression analyses of all resolved protein spots revealed that almost 30% of them were stage-specific, with ca. 90 protein spots for each stage. Most of the proteins exhibited differential expression during petal development, whereas only ca. 6% were constitutively expressed. Eighty-two of the resolved proteins were identified by mass spectrometry and annotated. Classification of the annotated proteins into functional groups revealed energy, cell rescue, unknown function (including novel sequences) and metabolism to be the largest classes, together comprising ca. 90% of all identified proteins. Interestingly, a large number of stress-related proteins were identified in developing petals. Analyses of the expression patterns of annotated proteins and their corresponding RNAs confirmed the importance of proteome characterization.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47485/1/425_2005_Article_1512.pd

Exploiting members of the BAHD acyltransferase family to synthesize multiple hydroxycinnamate and benzoate conjugates in yeast

BACKGROUND: BAHD acyltransferases, named after the first four biochemically characterized enzymes of the group, are plant-specific enzymes that catalyze the transfer of coenzyme A-activated donors onto various acceptor molecules. They are responsible for the synthesis in plants of a myriad of secondary metabolites, some of which are beneficial for humans either as therapeutics or as specialty chemicals such as flavors and fragrances. The production of pharmaceutical, nutraceutical and commodity chemicals using engineered microbes is an alternative, green route to energy-intensive chemical syntheses that consume petroleum-based precursors. However, identification of appropriate enzymes and validation of their functional expression in heterologous hosts is a prerequisite for the design and implementation of metabolic pathways in microbes for the synthesis of such target chemicals. RESULTS: For the synthesis of valuable metabolites in the yeast Saccharomyces cerevisiae, we selected BAHD acyltransferases based on their preferred donor and acceptor substrates. In particular, BAHDs that use hydroxycinnamoyl-CoAs and/or benzoyl-CoA as donors were targeted because a large number of molecules beneficial to humans belong to this family of hydroxycinnamate and benzoate conjugates. The selected BAHD coding sequences were synthesized and cloned individually on a vector containing the Arabidopsis gene At4CL5, which encodes a promiscuous 4-coumarate:CoA ligase active on hydroxycinnamates and benzoates. The various S. cerevisiae strains obtained for co-expression of At4CL5 with the different BAHDs effectively produced a wide array of valuable hydroxycinnamate and benzoate conjugates upon addition of adequate combinations of donors and acceptor molecules. In particular, we report here for the first time the production in yeast of rosmarinic acid and its derivatives, quinate hydroxycinnamate esters such as chlorogenic acid, and glycerol hydroxycinnamate esters. Similarly, we achieved for the first time the microbial production of polyamine hydroxycinnamate amides; monolignol, malate and fatty alcohol hydroxycinnamate esters; tropane alkaloids; and benzoate/caffeate alcohol esters. In some instances, the additional expression of Flavobacterium johnsoniae tyrosine ammonia-lyase (FjTAL) allowed the synthesis of p-coumarate conjugates and eliminated the need to supplement the culture media with 4-hydroxycinnamate. CONCLUSION: We demonstrate in this study the effectiveness of expressing members of the plant BAHD acyltransferase family in yeast for the synthesis of numerous valuable hydroxycinnamate and benzoate conjugates