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Tissue response to the implantation of biodegradable polyhydroxyalkanoate sutures / E. I. Shishatskaya [et al.] // Journal of Materials Science: Materials in Medicine. - 2004. - Vol. 15, Is. 6. - P719-728, DOI 10.1023/B:JMSM.0000030215.49991.0d . - ISSN 0957-4530
Кл.слова (ненормированные):
Necrosis -- Polymeric implants -- Suppurative inflammation -- Tissue reaction -- Biodegradation -- Calcification (biochemistry) -- Cells -- Copolymers -- Implants (surgical) -- Silk -- Tissue -- Tumors -- Materials science -- acid phosphatase -- copolymer -- poly(3 hydroxybutyric acid) -- polyhydroxyalkanoic acid -- polyhydroxyvaleric acid -- unclassified drug -- animal experiment -- animal model -- article -- biodegradable implant -- blood vessel reactivity -- catgut -- controlled study -- enzyme activity -- female -- giant cell -- histochemistry -- inflammation -- macrophage -- nonhuman -- priority journal -- rat -- silk -- suture -- tensile strength -- tissue reaction -- tissue structure -- wound healing -- young modulus -- Absorbable Implants -- Animals -- Female -- Fibrosis -- Foreign-Body Reaction -- Hydroxybutyrates -- Muscle, Skeletal -- Polyesters -- Polymers -- Rats -- Rats, Wistar -- Sutures -- Treatment Outcome -- Wounds, Penetrating -- Animalia
Аннотация: Polyhydroxyalkanoate (PHA) sutures were implanted to test animals intramuscularly, and tissue reaction was investigated and compared with the reaction to silk and catgut. Tested monofilament sutures made of PHAs of two types polyhydroxybutyrate (PHB) and a copolymer of hydroxybutyrate and hydroxyvalerate (PHV) featured the strength necessary for the healing of muscle-fascial wounds. The reaction of tissues to polymeric implants was similar to their reaction to silk and was less pronounced than the reaction to catgut; it was expressed in a transient post-traumatic inflammation (up to four weeks) and the formation of a fibrous capsule less than 200 ?m thick, which became as thin as 4060 ?m after 16 weeks, in the course of reverse development. Macrophages and foreign-body giant cells with a high activity of acid phosphatase were actively involved in this process. PHB and PHB/PHV sutures implanted intramuscularly for an extended period (up to one year) did not cause any acute vascular reaction at the site of implantation or any adverse events, such as suppurative inflammation, necrosis, calcification of the fibrous capsule or malignant tumor formation. No statistically significant differences were revealed in the tissue response to polymer sutures of the two types. Capsules around silk and catgut sutures did not become significantly thinner.

Scopus
Держатели документа:
Inst. Biophys. Siberian Br. Russ. A., Akademgorodok, Krasnoyarsk 660036, Russia, Russian Federation
Terr. Pathological Anatomy Bureau, Partisan Zheleznyak St. 1, Krasnoyarsk 660049, Russia, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Shishatskaya, E.I.; Volova, T.G.; Puzyr, A.P.; Mogilnaya, O.A.; Efremov, S.N.

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Dobutamine prevents experimental postintoxication liver cirrhosis in mice / A. P. Vinokurov, A. V. Eremeev, N. A. Setkov // Bulletin of Experimental Biology and Medicine. - 2002. - Vol. 134, Is. 1. - P. 43-46, DOI 10.1023/A:1020604621142 . - ISSN 0007-4888
Кл.слова (ненормированные):
Dobutamine -- Hepatocytes -- Liver cirrhosis -- Proliferation -- adrenergic receptor stimulating agent -- alpha 1 adrenergic receptor stimulating agent -- beta 1 adrenergic receptor stimulating agent -- beta 2 adrenergic receptor stimulating agent -- carbon tetrachloride -- catecholamine derivative -- dobutamine -- epidermal growth factor -- animal cell -- animal experiment -- animal model -- animal tissue -- article -- cell activity -- cell culture -- cell death -- cell proliferation -- cell stimulation -- chronic hepatitis -- connective tissue -- controlled study -- disease association -- drug effect -- drug potency -- experimental test -- female -- liver cell -- liver cirrhosis -- liver fibrosis -- liver hyperplasia -- liver necrosis -- liver parenchyma -- liver regeneration -- liver toxicity -- morphology -- mouse -- nonhuman -- toxicity testing -- Adrenergic beta-Agonists -- Animals -- Carbon Tetrachloride -- Cell Division -- Dobutamine -- Dose-Response Relationship, Drug -- Female -- Hepatocytes -- Liver -- Liver Cirrhosis -- Mice -- Mice, Inbred BALB C -- Animalia
Аннотация: Various chronic inflammatory and necrotic processes in the liver parenchyma are accompanied by pathological morphofunctional changes, which are associated with hepatocyte death and hyperplasia of the connective tissue. Regeneration of the liver parenchyma should include not only prevention of fibrosis, but also stimulation of hepatocyte prolifearation. The adrenoceptor agonist dobutamine stimulated proliferative activity of cultured hepatocytes and prevented the development of postintoxication liver cirrhosis in mice produced by chronic poisoning with CCl4.

Scopus
Держатели документа:
Department of General Surgery, Krasnoyarsk State Medical Academy, Krasnoyarsk, Russian Federation
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Vinokurov, A.P.; Eremeev, A.V.; Setkov, N.A.

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Dobutamine prevents experimental postintoxication liver cirrhosis in mice [Text] / A. P. Vinokurov, A. V. Eremeev, N. A. Setkov // Bull. Exp. Biol. Med. - 2002. - Vol. 134, Is. 1. - P. 43-46, DOI 10.1023/A:1020604621142. - Cited References: 14 . - ISSN 0007-4888

РУБ Medicine, Research & Experimental
Рубрики:
GROWTH-FACTOR-BETA
   HEPATIC-FIBROSIS
   RAT HEPATOCYTES
   NOREPINEPHRINE
   INJURY
   CELLS
Кл.слова (ненормированные):
hepatocytes -- dobutamine -- proliferation -- liver cirrhosis
Аннотация: Various chronic inflammatory and necrotic processes in the liver parenchyma are accompanied by pathological morphofunctional changes, which are associated with hepatocyte death and, hyperplasia of the connective tissue. Regeneration of the liver parenchyma should include not only prevention of fibrosis, but also stimulation of hepatocyte proliferation. The adrenoceptor agonist dobutamine stimulated proliferative activity of cultured hepatocytes and prevented the development of postintoxication liver cirrhosis in mice produced by chronic poisoning with CCl4.

WOS
Держатели документа:
Krasnoyarsk State Med Acad, Dept Gen Surg, Krasnoyarsk, Russia
Russian Acad Sci, Inst Biophys, Siberian Div, Krasnoyarsk, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Vinokurov, A.P.; Eremeev, A.V.; Setkov, N.A.

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