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Biomedical subjects

K Koĭchev

Publications and source records attributed to K Koĭchev.

At least 19 recordsLinked to original sources
PubMed1986

[Etiology and chemotherapy of suppurative surgical infection in horses and cattle].

A total of 24 horses and 42 cattle with a variety of local suppurative processes (wounds, abscesses, phlegmons, tendovaginitis, etc.) were studied under conditions of the clinic with regard to the most commonly found microbial species and the opportunity to work out antibioticogrammes in terms of the effectiveness of 11 of the chemotherapeutic agents widely used in the practice. It was found that prevailing in horses were staphylococci and streptococci. In cattle Corynebacterium pyogenes was predominantly established. Besides, there was a rising trend in the part played by representative agents of the occasionally pathogenic microflora (Ps. aeruginosa, Pr. vulgaris, Escherichia coli) as the causative species of local suppurative processes. These organisms were fairly often isolated in association with other species, while they were more rarely found as the only acting ones in a particular case. Best effects of the antibiotics tested could be expectedly produced by gentamycin (82.5 per cent), carbenimycin (74.2 per cent), oxacyllin (72.7 per cent), ampicillin (68.2 per cent), and canamycin (61.8 per cent). At the same time, the effectiveness produced by some of the antibiotics widely employed in the practice, such as chloramphenicol, tetracycline, streptomycin, and penicillin was below 50 per cent.

Animals↗
PubMed1985

[Pharmacokinetics of amoxicillin trihydrate in sheep infected experimentally with Corynebacterium pyogenes and Escherichia coli].

A comparative experiment was carried out with sheep that were infected i/v and via the joints with Corynebacterium pyogenes and Escherichia coli, and with normal sheep left as controls. The pharmacokinetic parameters were determined of amoxicillin-trihydrate following its i/m application to all animals in a 20 percent oil suspension. It was found that there was delayed excretion of the antibiotic, and as a rule it was maintained in higher concentrations in the diseased animals. the differences were likely to be due to changes in the metabolic processes and to injury of the kidneys.

Amoxicillin↗
PubMed1985

[Clinical, radiotelemetric and x-ray research on erythematous polyarthritis in lambs].

Experimental investigations were carried out with 6 lambs each infected i/v with 2 cm3 of a 24-hour broth culture of Erysipelothrix rhusiopathiae rated at 10(8) microbial cells per cu. cm. The clinical state of the animals was followed up in the course of 60 days, the changes in the cardiovascular system and those in the movements of the rumen being recorded radiotelemetrically, while the changes taking place in the joints were studied roentgenographically. It was found that the causative agent of swine erysipelas was strongly pathogenic for the lambs following a hematogenic infection, causing polyarthritis with concurrent changes in the general state--rise of temperature and higher respiration and pulse rates. The electrocardiograms of the affected animals showed sinus tachycardia, participation of Q waves, and changes in the R and T waves, while the graphic records of the rumen showed a drop in the number of rumen contractions and decrease in the amplitude. Roentgenographically, there were periostitis and osteoarthritis of the carpal and tarsal joints.

Animals↗
PubMed1985

[Morphological and biochemical changes in the blood of lambs with experimental Erysipelothrix polyarthritis].

Polyarthritis was induced in lambs via the i/v infection with 2 cm3 of 24-hour Erysipelothrix rhusiopathiae broth culture, which led to distinctive morphologic and biochemical changes in the peripheral blood. The hemoglobin content, the erythrocyte count, and the hematocrit value dropped, while ESR rose with the development of the infection process. The white blood picture presented transient and slight drop of the leukocyte count followed by leukocytosis with shifting to the left, aneosinophilia, lympho- and monopenia in the acute stage, and well manifested eosinophilia in the chronic stage of the infection. The changes in the total protein and the protein fractions consisted in hypoproteinemia in the first days following infection, hypoalbuminemia during the entire period, and hyperproteinemia and hypergammaglobulinemia in the chronic stage. The changes in the blood electrolites consisted in the rise of Ca and K, the drop of Na, and transient changes in the level of P, tending toward a rise in the chronic stage. It was also established that the values of sialic acid were raised in the entire period of polyarthritis development, while those of aspartate aminotransferase and alanine aminotransferase were higher in the first seven-day period only.

Animals↗
PubMed1982

[Seronegative, HLA-B27-positive arthritis (a preliminary report)].

Fifty two patients, 29 males and 23 females, with seronegative polyarthritis, carriers of tissue-compatible antigen HLA--B27 manifested characteristic clinical signs: the disease started at young age--29; it progresses, most frequently, with attacks--acute or subacute as monoarthritis (gonitis) or oligoarthritis, the lower limb joints predominantly involved. The periarticular structures are very often involved in the process--achillitis, styloiditis, talagia and sarcoiliac joints--sarcoiliitis clinically and scintigraphically confirmed. With the family examinations of the patients' relatives the following cases were established: 9 cases with Bechterew's disease, four cases with sacroiliitis, one--with iridocyclitis, two patients with rheumatoid arthritis and 18 healthy carriers of HLA--B27 antigen. The dynamics of the development of typical ankylozing spondylitus was a favourable prognosis and the treatment, most often, covers--nonsteroid anti-inflammatory drugs or low doses of corticosteroids--generally or locally.

Adult↗
PubMed1977

[Deviations in the level of serum lipids and higher fatty acids in liver cirrhosis and chronic hepatitis].

Serum lipids and higher fatty acids were investigated in 141 patients with portal liver cirrhosis, 51 patients with chronic hepatitis and 40 clinically healthy subjects--controls. Lower contents of cholesterin in blood was found in the patients with liver cirrhosis as compared with the healthy as well as of total lipids, phospholipids, beta-LP, palmitic, palmitoleic, oleic linoleic and linolenic acids and considerably higher contents, of NEFA endogene heparin, LPL and blood sugar. The deviations described are more manifested in decompensated liver cirrhosis. In the patients with chronic hepatitis, as compared with the controls higher contents of cholesterin, total lipids, phospholipids, triglyceride, beta-LP, NEFA, LPL, endogene heparin, stearinic, palmitic, palmitoleic and oleic acids and blood sugar were found. In the patients with liver cirrhosis, as compared with the patients with chronic hepatitis, a lower contents of cholesterin was found as well as of total lipids, phospholipids, triglycerides, beta-LP, palmitic, palmitoleic and oleic acids and a higher contents of and blood sugar. The described deviations in the contents of serum lipid indices are with a definite regular character and can be used in the diagnosis of liver diseases.

Adult↗