Wound healing and anti-inflammatory effects of recombinant human angiogenin

New effective wound healing agents are a priority for modern clinical pharmacology. A promising approach would be to develop medicinal products that promote angiogenesis, which is a critical step in wound healing. The aim of the study was to evaluate the wound healing effect of a medicinal product based on recombinant human angiogenin in gel form in various experimental models. Materials and methods: white outbred male rats were used as experimental ani mals. The study compared healing effects of a regenerating product containing recombinant human angiogenin (0.0025%) in gel form and a reference product in full-thickness excision, incision, and burn wound models. The healing effect of the test product in treating chronic wounds was assessed in a model of alloxan-induced diabetes mellitus. The anti-inflammatory effect of the test product containing recombinant human angiogenin was compared with that of another reference product in a model of adjuvant-induced arthritis. Results: according to the study, the test product based on recombinant human angiogenin exerts higher wound healing effect in treating excision, incision, and burn wounds than the reference product (Solcoseryl gel). Being applied, the test product intensifies tissue repair in chronic wounds in the model of alloxan-induced diabetes. The dissociation of necrotic tissues and the progression towards epithelialisation at wound edges are more rapid. The anti-inflammatory effect of the test product based on recombinant human angiogenin is comparable with that of the reference product (Diclofenac gel). Conclusions: the test product based on recombinant human angiogenin in gel form was found to have pronounced wound healing and anti-inflammatory effects comparable with those of reference products

Ранозаживляющее и противовоспалительное действие рекомбинантного ангиогенина человека

New effective wound healing agents are a priority for modern clinical pharmacology. A promising approach would be to develop medicinal products that promote angiogenesis, which is a critical step in wound healing. The aim of the study was to evaluate the wound healing effect of a medicinal product based on recombinant human angiogenin in gel form in various experimental models. Materials and methods: white outbred male rats were used as experimental ani mals. The study compared healing effects of a regenerating product containing recombinant human angiogenin (0.0025%) in gel form and a reference product in full-thickness excision, incision, and burn wound models. The healing effect of the test product in treating chronic wounds was assessed in a model of alloxan-induced diabetes mellitus. The anti-inflammatory effect of the test product containing recombinant human angiogenin was compared with that of another reference product in a model of adjuvant-induced arthritis. Results: according to the study, the test product based on recombinant human angiogenin exerts higher wound healing effect in treating excision, incision, and burn wounds than the reference product (Solcoseryl gel). Being applied, the test product intensifies tissue repair in chronic wounds in the model of alloxan-induced diabetes. The dissociation of necrotic tissues and the progression towards epithelialisation at wound edges are more rapid. The anti-inflammatory effect of the test product based on recombinant human angiogenin is comparable with that of the reference product (Diclofenac gel). Conclusions: the test product based on recombinant human angiogenin in gel form was found to have pronounced wound healing and anti-inflammatory effects comparable with those of reference products.Создание новых эффективных ранозаживляющих средств является актуальной задачей современной клинической фармакологии. Одним из перспективных направлений представляется разработка препаратов для стимуляции ангиогенеза, который является критическим этапом процесса заживления ран. Цель работы: оценить ранозаживляющее действие препарата на основе рекомбинантного ангиогенина человека в виде геля на различных экспериментальных моделях. Материалы и методы: в качестве экспериментальных животных использовали белых беспородных крыс-самцов. Исследовано ранозаживляющее действие препарата на основе рекомбинантного ангиогенина человека (0,0025%) в виде геля относительно препарата сравнения на моделях плоскостной кожно-мышечной, линейной и ожоговой раны. Ранозаживляющее действие исследуемого препарата при лечении длительно незаживающей раны охарактеризовано на модели аллоксанового сахарного диабета. На модели адъювантного артрита оценено противовоспалительное действие препарата на основе рекомбинантного ангиогенина человека относительно препарата сравнения. Результаты: установлена более высокая ранозаживляющая активность препарата на основе рекомбинантного ангиогенина человека относительно препарата сравнения (гель Солкосерил) для плоскостной кожно-мышечной раны, линейной и ожоговой ран. При применении исследуемого препарата ускоряется процесс репарации тканей при лечении длительно незаживающей раны на модели аллоксанового сахарного диабета. Отмечено более быстрое расплавление некротических масс и переход к эпителизации краев раны. Установлена противовоспалительная активность препарата на основе рекомбинантного ангиогенина человека, по эффективности сравнимая с действием препарата сравнения (гель Диклофенак). Выводы: определено наличие у препарата на основе рекомбинантного ангиогенина человека в виде геля выраженных ранозаживляющих и противовоспалительных свойств, сопоставимых с препаратами сравнения

Hospital Stage of Myocardial Infarction Treatment in 13 Regions of Russian Federation by Results of the International Research

Aim. To describe the characteristics of the patient with MI who is admitted to a hospital and to characterize the main diagnostic and treatment interventions in clinic. Material and methods. This study is observational and the part of big international project. It includes a representative sample of patients with MI admitted to 16 clinics in 13 regions of Russian Federation (Arkhangelsk region, Belgorod region, Bryansk region, Tver region, Saratov region, Rostov region, Samara region, the Republic of Tatarstan, Perm region, Tyumen region, Khanty-Mansiysk Autonomous district, Kemerovo region, Altai region). Patients were selected at random from among those experiencing a MI that were alive on the next morning after hospitalization. Enrollment took place from June 2015 to August 2016. Results. Of 1,128 patients included in the study, 872 were male (77.3%) and 256 females. 21.4% of patients had a previous MI, 8.3% had undergone PCI, and 2.2% CABG. Turning to cardiovascular risk factors, 46.2% of patients smoked prior to hospitalization, 34.6% were obese and 52.1% had a high cholesterol level. Only 40.0% of patients had no contact with the health care system within 12 months before the MI. Every fourth patient (25.1%) had undergone dispensarisation within 12 months before MI, women significantly often than men (33.5% and 22.6%, p < 0.001). Initial revascularization was performed in 73.2% of patients, PCI was the initial revascularization attempt in 49.4% of patients, and PCI with stenting in 46.7%. Conclusion. Patient with a MI in Russian clinics is likely to have had a history of cardiovascular disease, and to have regular contact with the health care system within 12 months before the development of cardiovascular event. We demonstrated the high rates of appropriate MI treatment, without significant gender and age difference (except for thrombolysis), however, there is a reserve for increasing the proportion of patients who are undergoing revascularization

Dynamics of carbon pools in post-agrogenic sandy soils of southern taiga of Russia

<p>Abstract</p> <p>Background</p> <p>Until recently, a lot of arable lands were abandoned in many countries of the world and, especially, in Russia, where about half a million square kilometers of arable lands were abandoned in 1961-2007. The soils at these fallows undergo a process of natural restoration (or self-restoration) that changes the balance of soil organic matter (SOM) supply and mineralization.</p> <p>Results</p> <p>A soil chronosequence study, covering the ecosystems of 3, 20, 55, 100, and 170 years of self-restoration in southern taiga zone, shows that soil organic content of mineral horizons remains relatively stable during the self-restoration. This does not imply, however, that SOM pools remain steady. The C/N ratio of active SOM reached steady state after 55 years, and increased doubly (from 12.5 - 15.6 to 32.2-33.8). As to the C/N ratio of passive SOM, it has been continuously increasing (from 11.8-12.7 to 19.0-22.8) over the 170 years, and did not reach a steady condition.</p> <p>Conclusion</p> <p>The results of the study imply that soil recovery at the abandoned arable sandy lands of taiga is incredibly slow process. Not only soil morphological features of a former ploughing remained detectable but also the balance of soil organic matter input and mineralization remained unsteady after 170 years of self-restoration.</p