6 research outputs found
Polycyclic aromatic hydrocarbons in sediments of water reservoirs (middle Volga region, Russia)
Bottom sediments from the Kuibyshev and Cheboksary reservoirs were sampled and the content of anthracene, acetonaphthylene, acenaphthene, benz (a) pyrene, benz (b) fluoranthene, benzo (k) fluoranthene, benz (g, h, i) perylene, dibenz (a, h) anthracene, pyrene, fluorene, fluoranthene, phenanthrene, chrysene was analyzed. The level of the total polycyclic aromatic hydrocarbons (PAH) content in the bottom sediments of the Cheboksary and Kuibyshev reservoirs was lower in comparison with the standards adopted in foreign countries. A tendency of increasing the PAHs content from the upper to the lower parts of the reservoirs, in the area of the Kama river mouth and the upper reach of the Samara hydroelectric power plant, was noted. PAHs with three benzene rings prevailed in the bottom sediments of the Cheboksary reservoir, and two and five benzene rings - in the Kuibyshev reservoir
ΠΠ½ΠΎΠΉΠ½ΠΎ-Π½Π΅ΠΊΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΏΠ°ΡΠ°ΠΏΡΠΎΠΊΡΠΈΡ Ρ ΡΠ΅Π±Π΅Π½ΠΊΠ° 5 Π»Π΅Ρ: ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ΅ Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΠ΅
Authors present a rare clinical case of successful treatment of a 5-year-old child with purulent-necrotic paraproctitis, which developed against the background of a primary immune deficiency state.
Clinical case. A 5-year-old boy became acutely ill, against the background of diarrhea with hyperthermia. An area of hyperemia, edema, and tissue infiltration appeared in the perianal region. In anamnesis, with frequent respiratory infections and dysfunction of the intestinal tract in the form of diarrhea. He was admitted to the Regional Childrens Hospital on the 10th day of illness from the regional hospital, where antibiotic treatment was started. Upon admission, the condition was serious in the perianal region with an extensive wound necrotic tissues and a plaque of fibrin. To create favorable conditions for wound healing, a preventive sigmostomy operation was performed. Multidrug-resistant Pseudomonas aeruginosa was found in the wound culture. Thus, courses of antibiotics treatment, infusion therapy, and surgical debridement of the perianal wound and its local treatment were performed. Upon immunological status examination, a primary immunodeficiency was revealed, for which drugs with immunoglobulin G were administered. As a result of the treatment, the wound healed by secondary intention, thus, an operation was performed to close the sigmostoma. The child was discharged in satisfactory condition under the supervision of an immunologist and a surgeon.
Discussion. In this case, preventive sigmostomy is justified; however, authors limit themselves to surgical intervention on the perineum in other cases. Pseudomonas aeruginosa shows its pathogenicity in patients with impaired immunity. Therefore, courses of antibiotics, infusion therapy, and immunomodulatory therapy along with surgical treatment, favorable result were achieved.
Conclusion. Children with purulent-necrotic paraproctitis, which developed against the background of a primary immune deficiency should be hospitalized as early as possible in a specialized hospital.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΡΠ΅Π΄ΠΊΠΎΠ΅ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠ΅ Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΠ΅ ΡΡΠΏΠ΅ΡΠ½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ ΡΠ΅Π±Π΅Π½ΠΊΠ° 5 Π»Π΅Ρ Ρ Π³Π½ΠΎΠΉΠ½ΠΎ-Π½Π΅ΠΊΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΏΠ°ΡΠ°ΠΏΡΠΎΠΊΡΠΈΡΠΎΠΌ, ΡΠ°Π·Π²ΠΈΠ²ΡΠΈΠΌΡΡ Π½Π° ΡΠΎΠ½Π΅ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΈΠΌΠΌΡΠ½ΠΎΠ΄Π΅ΡΠΈΡΠΈΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ.
ΠΠΏΠΈΡΠ°Π½ΠΈΠ΅ Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΡ. ΠΠ°Π»ΡΡΠΈΠΊ, 5 Π»Π΅Ρ, Π·Π°Π±ΠΎΠ»Π΅Π» ΠΎΡΡΡΠΎ, ΠΊΠΎΠ³Π΄Π° Π½Π° ΡΠΎΠ½Π΅ Π΄ΠΈΠ°ΡΠ΅ΠΈ Ρ Π³ΠΈΠΏΠ΅ΡΡΠ΅ΡΠΌΠΈΠ΅ΠΉ Π² ΠΏΠ΅ΡΠΈΠ°Π½Π°Π»ΡΠ½ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ ΠΏΠΎΡΠ²ΠΈΠ»ΡΡ ΡΡΠ°ΡΡΠΎΠΊ Π³ΠΈΠΏΠ΅ΡΠ΅ΠΌΠΈΠΈ, ΠΎΡΠ΅ΠΊΠ° ΠΈ ΠΈΠ½ΡΠΈΠ»ΡΡΡΠ°ΡΠΈΠΈ ΡΠΊΠ°Π½Π΅ΠΉ. Π Π°Π½Π°ΠΌΠ½Π΅Π·Π΅: ΡΠ°ΡΡΡΠ΅ ΡΠ΅ΡΠΏΠΈΡΠ°ΡΠΎΡΠ½ΡΠ΅ ΠΈΠ½ΡΠ΅ΠΊΡΠΈΠΈ ΠΈ Π΄ΠΈΡΡΡΠ½ΠΊΡΠΈΡ ΠΊΠΈΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΡΡΠ°ΠΊΡΠ° Π² Π²ΠΈΠ΄Π΅ Π΄ΠΈΠ°ΡΠ΅ΠΈ. ΠΠΎΡΠΏΠΈΡΠ°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½ Π² ΠΠ±Π»Π°ΡΡΠ½ΡΡ Π΄Π΅ΡΡΠΊΡΡ Π±ΠΎΠ»ΡΠ½ΠΈΡΡ Π½Π° 10-Π΅ ΡΡΡΠΊΠΈ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΡ ΠΈΠ· ΡΠ°ΠΉΠΎΠ½Π½ΠΎΠΉ Π±ΠΎΠ»ΡΠ½ΠΈΡΡ, Π³Π΄Π΅ Π±ΡΠ»ΠΎ Π½Π°ΡΠ°ΡΠΎ Π»Π΅ΡΠ΅Π½ΠΈΠ΅ Π°Π½ΡΠΈΠ±ΠΈΠΎΡΠΈΠΊΠ°ΠΌΠΈ. ΠΡΠΈ ΠΏΠΎΡΡΡΠΏΠ»Π΅Π½ΠΈΠΈ ΡΠΎΡΡΠΎΡΠ½ΠΈΠ΅ ΡΡΠΆΠ΅Π»ΠΎΠ΅, Π² ΠΏΠ΅ΡΠΈΠ°Π½Π°Π»ΡΠ½ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ ΠΎΠ±ΡΠΈΡΠ½Π°Ρ ΡΠ°Π½Π° Ρ Π½Π΅ΠΊΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠΊΠ°Π½ΡΠΌΠΈ ΠΈ Π½Π°Π»Π΅ΡΠΎΠΌ ΡΠΈΠ±ΡΠΈΠ½Π°. ΠΠ»Ρ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ Π±Π»Π°Π³ΠΎΠΏΡΠΈΡΡΠ½ΡΡ
ΡΡΠ»ΠΎΠ²ΠΈΠΉ Π΄Π»Ρ Π·Π°ΠΆΠΈΠ²Π»Π΅Π½ΠΈΡ ΡΠ°Π½Ρ Π±ΡΠ»Π° ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π° ΠΎΠΏΠ΅ΡΠ°ΡΠΈΡ ΠΏΡΠ΅Π²Π΅Π½ΡΠΈΠ²Π½ΠΎΠΉ ΡΠΈΠ³ΠΌΠΎΡΡΠΎΠΌΠΈΠΈ. Π ΠΏΠΎΡΠ΅Π²Π΅ ΠΈΠ· ΡΠ°Π½Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½Π° ΠΏΠΎΠ»ΠΈΡΠ΅Π·ΠΈΡΡΠ΅Π½ΡΠ½Π°Ρ Pseudomonas aeruginosa. ΠΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡ Π»Π΅ΡΠ΅Π½ΠΈΠ΅ ΠΊΡΡΡΠ°ΠΌΠΈ Π°Π½ΡΠΈΠ±ΠΈΠΎΡΠΈΠΊΠΎΠ², ΠΈΠ½ΡΡΠ·ΠΈΠΎΠ½Π½Π°Ρ ΡΠ΅ΡΠ°ΠΏΠΈΡ, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π° Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ°Π½Ρ ΠΏΠ΅ΡΠΈΠ°Π½Π°Π»ΡΠ½ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ ΠΈ ΠΌΠ΅ΡΡΠ½ΠΎΠ΅ Π»Π΅ΡΠ΅Π½ΠΈΠ΅. ΠΡΠΈ ΠΎΠ±ΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΈ ΠΈΠΌΠΌΡΠ½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΡΠ°ΡΡΡΠ° Π²ΡΡΠ²Π»Π΅Π½ΠΎ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΠΎΠ΅ ΠΈΠΌΠΌΡΠ½ΠΎΠ΄Π΅ΡΠΈΡΠΈΡΠ½ΠΎΠ΅ ΡΠΎΡΡΠΎΡΠ½ΠΈΠ΅, ΠΏΠΎ ΠΏΠΎΠ²ΠΎΠ΄Ρ ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ Π²Π²ΠΎΠ΄ΠΈΠ»ΠΈΡΡ ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΡ Ρ ΠΈΠΌΠΌΡΠ½ΠΎΠ³Π»ΠΎΠ±ΡΠ»ΠΈΠ½ΠΎΠΌ G. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ ΡΠ°Π½Π° Π·Π°ΠΆΠΈΠ»Π° Π²ΡΠΎΡΠΈΡΠ½ΡΠΌ Π½Π°ΡΡΠΆΠ΅Π½ΠΈΠ΅ΠΌ, ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Π° ΠΎΠΏΠ΅ΡΠ°ΡΠΈΡ Π·Π°ΠΊΡΡΡΠΈΡ ΡΠΈΠ³ΠΌΠΎΡΡΠΎΠΌΡ. Π Π΅Π±Π΅Π½ΠΎΠΊ Π²ΡΠΏΠΈΡΠ°Π½ Π² ΡΠ΄ΠΎΠ²Π»Π΅ΡΠ²ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠΌ ΡΠΎΡΡΠΎΡΠ½ΠΈΠΈ ΠΏΠΎΠ΄ Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΠ΅ ΠΈΠΌΠΌΡΠ½ΠΎΠ»ΠΎΠ³Π° ΠΈ Ρ
ΠΈΡΡΡΠ³Π°.
ΠΠ±ΡΡΠΆΠ΄Π΅Π½ΠΈΠ΅. Π Π΄Π°Π½Π½ΠΎΠΌ ΡΠ»ΡΡΠ°Π΅ ΠΎΠΏΡΠ°Π²Π΄Π°Π½ΠΎ ΠΏΡΠ΅Π²Π΅Π½ΡΠΈΠ²Π½ΠΎΠ΅ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΠ΅ ΡΠΈΠ³ΠΌΠΎΡΡΠΎΠΌΠΈΠΈ, Ρ
ΠΎΡΡ Π² Π΄ΡΡΠ³ΠΈΡ
Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΡΡ
Π°Π²ΡΠΎΡΡ ΠΎΠ³ΡΠ°Π½ΠΈΡΠΈΠ²Π°Π»ΠΈΡΡ Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΈΠΌ Π²ΠΌΠ΅ΡΠ°ΡΠ΅Π»ΡΡΡΠ²ΠΎΠΌ Π½Π° ΠΏΡΠΎΠΌΠ΅ΠΆΠ½ΠΎΡΡΠΈ. Pseudomonas aeruginosa ΠΏΡΠΎΡΠ²Π»ΡΠ΅Ρ ΡΠ²ΠΎΡ ΠΏΠ°ΡΠΎΠ³Π΅Π½Π½ΠΎΡΡΡ Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ Π½Π°ΡΡΡΠ΅Π½ΠΈΡΠΌΠΈ ΠΈΠΌΠΌΡΠ½ΠΈΡΠ΅ΡΠ°. ΠΠΎΡΡΠΎΠΌΡ, Π½Π°ΡΡΠ΄Ρ Ρ Ρ
ΠΈΡΡΡΠ³ΠΈΡΠ΅ΡΠΊΠΈΠΌ Π»Π΅ΡΠ΅Π½ΠΈΠ΅ΠΌ, ΠΊΡΡΡΠ°ΠΌΠΈ Π°Π½ΡΠΈΠ±ΠΈΠΎΡΠΈΠΊΠΎΠ², ΠΈΠ½ΡΡΠ·ΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠ΅ΡΠ°ΠΏΠΈΠ΅ΠΉ, ΡΠΎΠ»ΡΠΊΠΎ ΠΏΡΠΈ Π½Π°Π·Π½Π°ΡΠ΅Π½ΠΈΠΈ ΠΈΠΌΠΌΡΠ½ΠΎΠΌΠΎΠ΄ΡΠ»ΠΈΡΡΡΡΠ΅ΠΉ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ Π±ΡΠ» Π΄ΠΎΡΡΠΈΠ³Π½ΡΡ Π±Π»Π°Π³ΠΎΠΏΡΠΈΡΡΠ½ΡΠΉ ΡΠ΅Π·ΡΠ»ΡΡΠ°Ρ.
ΠΠ°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. ΠΠ΅ΡΠ΅ΠΉ Ρ Π³Π½ΠΎΠΉΠ½ΠΎ-Π½Π΅ΠΊΡΠΎΡΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΏΠ°ΡΠ°ΠΏΡΠΎΠΊΡΠΈΡΠΎΠΌ, ΡΠ°Π·Π²ΠΈΠ²ΡΠΈΠΌΡΡ Π½Π° ΡΠΎΠ½Π΅ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΈΠΌΠΌΡΠ½ΠΎΠ΄Π΅ΡΠΈΡΠΈΡΠ½ΠΎΠ³ΠΎ ΡΠΎΡΡΠΎΡΠ½ΠΈΡ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΠΊΠ°ΠΊ ΠΌΠΎΠΆΠ½ΠΎ ΡΠ°Π½ΡΡΠ΅ Π³ΠΎΡΠΏΠΈΡΠ°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°ΡΡ Π² ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΠΉ ΡΡΠ°ΡΠΈΠΎΠ½Π°Ρ
Polycyclic aromatic hydrocarbons in bottom sediments of an inner-city lake in the zone of discharge of surface runoff
Β© 2020 Published under licence by IOP Publishing Ltd. The study determined the content of polycyclic aromatic hydrocarbons (PAHs) in the bottom sediments of an inner-city Sredny Kaban Lake (Kazan, Russia) in the places of the organized release of untreated surface stormwater runoff within the catchment of the city. The content of 15 PAHs included in the priority list of PAHs for environmental research in the Russian Federation and in other countries was experimentally studied. The average content of the total PAHs studied (333.4 ΞΌg/kg) in the bottom sediments of the lake indicates a low degree of pollution. The analysis of the ratio of the content of individual PAHs reveals the main sources of their entry: Fuel combustion (vehicles) and oil pollution of the surface water. Benzo(g,h,i)perylene and Benz(a)pyrene represent the largest contribution to the hazard coefficient of all studied PAHs for bottom sediments of the studied water body. Bottom sediments are composed mainly of particles with a size of 1-100 ΞΌm; the contribution of particles with a size of 0.1-1 ΞΌm was estimated to be up to 1%
New approach to assessing the state of fish stocks on the example of bream
Β© 2020 Publishing House "O- Kratkoe". All rights reserved. This paper substantiates a new approach to the protection of fish resources, based on the transition from the concept of a calculated forecast of catches and quotas to a multilevel system for assessing the status of fish populations under conditions of slow flow. The main levels of the fish population monitoring system are considered. A new approach based an analysis of monitoring results of the main structural and functional population characteristics of fish, on data on the dynamics of the population size and its generations, changes in the age structure, growth rate, abundance of individuals with morphological anomalies. A new approach was tested on the example of a model species of bream (Abramis brama L.) in the Kuibyshev reservoir as a common inhabitant of different morpho-hydrological properties of reservoirs in Europe, belonging to the LC group according to the IUCN classification. An array of new scientific data has been obtained. Based on the calculation of natural mortality by approximating the population curve, taking into account the age composition of catches, it is shown that with a stable replenishment of the fishing herd, when high- and small-numbered generations enter the fishery, depending on the spawning conditions, bream stocks are not expected to be undermined. The results of the study can be used as a basis for assessing the state of fish populations, developing measures for the rational development of their reserves in conditions of unstable hydrological regime of reservoirs and weakening of control over fishing in the protection of fish resources