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Biomedical subjects

A A Pal'tsyn

Publications and source records attributed to A A Pal'tsyn.

At least 19 recordsLinked to original sources
PubMed2006

Radioautographic study of palatine tonsillar cells.

Proliferative and functional (protein producing) activities of palatine tonsillar cells were studied by light radioautography (semithin sections). 3H-Thymidine incorporation demonstrated the dynamics of renewal of palatine tonsillar cell populations in various pathological states. 3H-Uridine labeling objectively evaluated functional activity of different cells and more accurately showed distribution of destructive processes in the organ.

Adult↗
PubMed2006

[Morphological radioautographic study of the palatine tonsils in chronic tonsillitis and healthy subjects].

A pilot morphological (radioautographic) study of healthy and affected palatine tonsils (in hypertrophy and toxic-allergic form of chronic tonsillitis) in children and adults has shown that intensity of biosynthetic processes (protein-synthetic -- RNA synthesis and proliferative activity -- DNA synthesis) in the cells of palatine tonsils and structural changes of their tissues depend on characteristics of pathological process. Microbial penetration into the tonsils with formation of an active focus of chronic infection is traced.

Adolescent↗
PubMed2005

Proliferative activity of adipocytes in adipose tissue tumors.

Electron-autoradiographic study of normal and tumor-transformed adipose tissue (common lipoma and destructive lipoma, i.e. infiltrating and degrading lipoma) showed the capacity of adipose tissue cells in lipomas, especially in destructive lipomas, to proliferation and differentiation. In vivo synthesis of DNA in mature adipocytes not observed previously is described. The role of microvascular wall cells as mesenchymal multipotent precursors in the formation of the adipose tissue is discussed. The involvement of the bone marrow mesenchymal stem cell in this process cannot be ruled out.

Adipocytes↗
PubMed2004

Morphological changes in the anterior abdominal wall of rats with peritonitis and implanted synthetic film.

Histological study and electron microscopy of the anterior abdominal wall and laparotomy wound closed using a polytetrafluoroethylene film was performed on rats with experimental peritonitis. We studied 4 types of polytetrafluoroethylene films differing in the size of micropores and technology of treatment. The tissue response differed after implantation of various films. A multilayer film with minimum size of pores was optimal to repair the laparotomy wound.

Abdominal Wall↗
PubMed2002

[Immune status in diabetic patients with pyo-necrotic lesions of lower extremities].

Long-term and severe pyonecrotic processes in diabetic patients testify to severe disorders of immune system in this disease. High titer of antibodies to tested autostrain demonstrated its etiologic role in infectious process. The study group consisted of 29 patients (with diabetic pyonecrotic foot lesions), control group--17 patients with burns of III a, b--IV stage affecting from 20 to 60% of body surface. In diabetic patients antibodies titer to the most encountered infectious agents Staphilococcus aureus and Pseudomonas aeroginosa was lower than in burn patients with immunity deficiency. Decrease of antibodies titer in diabetic patients testifies to high insufficiency of B-immunity.

Adolescent↗
PubMed2002

[Efficacy of clinical-serologic diagnosis of wound infection in burned patients].

Titer of antibodies to microorganisms obtained from wound and blood of 46 patients with burns of IIIAB--IV degree was studied. The majority of the burned patients have ability to synthesize antibodies. Agglutination of the bacteria by antibodies promoted location of infectious agent in primary focus and impeded bacteria to spread into blood and generalization of process. Not all microorganisms of wound provoke antibodies synthesis, i.e. wound infection. Therefore bacteriologic study must be supplemented by serum diagnosis. Detection of bacteria in the blood without serologic data do not permit to consider these bacteria as etiologic factor of wound infection.

Adolescent↗
PubMed1999

[Clinico-laboratory effectiveness of modern ointments with a polyethylene glycol base in the treatment of purulent wounds].

The 25-year experience with the underbandage treatment of soft tissue purulent wounds of various location and genesis with modern ointments with polyethylene glycol as the basis was analyzed. Levocin, levomecole, dioxycole, 5-percent dioxydinic, 1-percent iodopyronic, 0.5-percent quinifuryl and furagel ointments proved to preserve their high activity against aerobic grampositive and gramnegative flora. 10-percent mafenide acetate ointment had a high selective effect on Pseudomonas aeruginosa. The new ointments nitacid and streptonitole containing nitazole and white streptocide were highly active against both aerobic and anaerobic infections. The use of the ointments with the polyethylene glycol as the basis made it possible to decrease 2 times the period of the patient hospitalization in surgical units and to shorten the terms of the systemic antibacterial therapy. The marked therapeutic effect of such ointments due to their high dehydrating capacity and broad antibacterial spectrum enabled to consider them as the drugs of choice in the local treatment of purulent wounds during the 1st phase of the wound process, trophic and decubic ulcers, infected burns, diabetic and atherosclerotic gangrene, furuncles, carbuncles, mastitis, etc. The ointments in the water soluble vehicle can be as well used with success for the prophylactic treatment of infected wounds after the suture. The multitarget effect of the ointments in the water soluble vehicle and their ability to prevent severe purulent complications permitted to consider them as the 1st order drugs in cases of emergency.

Anti-Bacterial Agents↗
PubMed1999

[Substantiation and varieties of complex surgical treatment tactics for pyo-necrotic forms of diabetic foot].

For the period from 1996 to 1998 in the Division of wounds and wound infection of A.V. Vishnevsky Institute of Surgery 92 patients with pyonecrotic forms of "diabetic foot" underwent thorough examination and treatment. The patients were divided into groups by the form of "diabetic foot": with pyonecrotic forms of "diabetic foot" without critical ischemia (group 1) and with it (group 2). In 18 patients of both groups the data of electron autoradiography were used to reveal peculiarities of the wound process. Group 1 patients had at admittance a large number of neutrophiles in various stages of destruction in biopsies of the wound. In patients of group 2 a great majority of the vessels in biopsies of the wound were in different stages of destruction with lost connections between their separate cells or some of their part absent. Separate cells (endotheliocytes and pericytes) which make up the walls of destroying vessels, were synthesizing RNA and were functionally active. In both groups, the studied parts of the wound before plastic repair of its defect usually represented as well developed granulation tissues with a number of microvessels and cells. Intensive synthesis of PNA in the cells of microvascular wall evidenced of their high functional activity, and the synthesis of DNA in them showed their ability for proliferation, i.g.--for growth. Thus, microangiopathy was reversible, and the solution of the problem of critical ischemia should be considered in the light of macroangiopathy. Thus, in patients of group 1 the cause of pyonecrotic damage consists in infection process, while in patients of group 2--in combination of infection with ischemia of the extremity. In both groups pyonecrotic disease of the extremity ruses at the background of severe disturbances of cellular immunity.

Diabetic Foot↗
PubMed1993

[Inhibitory effect of antimicrobial antibodies on the generalization of wound infection].

The antibody titer in wound and burn patients has been subjected to agglutination test to reveal bacterial autostrains. The antibodies to blood--isolated autostrains were shown to be present in lower titer, but more often they weren't found at all. At the clinical manifestation of sepsis the pathogenic strain (uniformly present in wound and secondary focuses, agglutinated by patient's serum in higher titer) hasn't been detected in blood. The authors conclude that the bacterial invasion of blood and generalization of infection occurs in the very first days following the emergence of bacteria in primary focus, when the antibodies to these bacteria haven't arisen yet and these is no clinical evidence of sepsis due to the small amount of those bacteria in primary focus. At the clinical manifestation of sepsis there is scant likelihood that the pathogen might be isolated from blood, occasional strains with no antibodies, may, however, be encountered.

Antibodies, Bacterial↗
PubMed1993

[The cause of benign and malignant courses of infection due to different strains of Pseudomonas aeruginosa].

Two groups of rats with experimental wound infection caused by various Ps. aeruginosa strains were investigated. The development of the disease was characterized as benign in the group infected by the first strain. Infection was presented as local inflammation. As for the second strain, the infection having features of malignancy was often presented in the form of septicopyemia. It appeared that the difference between the clinical course of the two compared groups correlated with those in humoral immunity status. The animal reaction to administration of both strains was agglutinative antibody formation. Besides agglutination, antibodies formed against the first strain caused the expressed complement-dependent lysis of bacterial cells. No lysis of bacteria of the second strain was observed.

Agglutination Tests↗