[BACTERIOLOGICAL ASPECTS OF AN ACUTE APPENDICITIS].

Peculiarities of microflora in the appendix mucosa and abdominal exudate in different morphological forms of an acute appendicitis (AA) were studied up. In accordance to the bacteriological investigations data, anaerobic, and aerobic microorganisms in AA were revealed in a monoculture and in association, more frequently--obligate anaer- obes (bacteroids) with E. coli--in 82 (80.39%) observations, staphylococcus--in 52 (50.98%), fecal streptococcus--in 19 (18.63%). With progression of inflammatory process and destructive changes in the appendix wall the quantity of bacteroids and enterobacteria have had enhanced, while the quantity of lacto- and bifidumflora-- reduced.

[DYNAMICS OF INDICES OF A LOCAL IMMUNITY IN AN ACUTE APPENDICITIS].

Abstract The results of investigation on dynamics of a local immunity indices in an acute appendicitis, depending on the pathological process stage as well as on bacteriological investigation of parietal microflora of processus vermicularis, were adduced. The sIgA and lisocymal dynamics have witnessed that while a destructive process progressing their concentration was enhanced, and in a gangrenous acute appendicitis they practically disappeared. Due to affection of a barrier function of the processus vermicularis wall a favorable conditions were created for the microorganisms intramural translocation as well as to abdominal cavity.

[PROPHYLAXIS OF INFILTRATIVE-INFLAMMATORY COMPLICATIONS OF THE WOUNDS HEALING IN PATIENTS, OPERATED ON FOR NONCOMPLICATED HERNIA OF ANTERIOR ABDOMINAL WALL].

The results of investigation of the inflammatory processes dynamics in operative wounds in 238 patients after surgical intervention, performed for noncomplicated hernias of anterior abdominal wall of various localization, as well as the impact of polarized light on correction of the vegetative nervous system disorders, for prophylaxis of infiltrative-purulent complications were analyzed.

[Peculiarities of microflora in an acute appendicitis and its impact on the postoperative purulent-inflammatory complications rate].

Bacteriological investigation of processus vermiformis contents was performed in 102 patients suffering an acute appendicitis (AA) and of abdominal cavity exudate--in 82 patients, operated for an AA. The microflora identification was done, as well as probable connection between microorganisms associations, the rate of the AA destructive forms revealing and postoperative purulent-inflammatory complications occurrence.

[State of the autonomic nervous system as a marker of adaptation reactions in patients with acute surgical diseases before and after operation].

Investigation of the vegetative nervous system (VNS) state according to ratio of the sympathetic and parasympathetic parts activity in patients with acute appendicitis, strangulated hernia, perforative ulcer was conducted. There were revealed significant VNS tone disorders before and after operation with signs of sympathicotony or parasimpathicotony, which needed to be corrected in complex of treatment of the patients.

[The role of enteropathogenic infection, local immunity, and autosensibilisation in pathogenesis of acute surgical diseases of peritoneal cavity by the example of acute appendicitis]. / Rol' enteropatohennoï infektsiï, lokal'noho imunitetu ta autosensybilizatsiï v patohenezi hostrykh khirurhichnykh zakhvoriuvan' cherevnoï porozhnyny na prykladi hostroho apendytsytu.

The complex of interrelated pathogenic factors in development of postoperative suppurative inflammatory complication with abdominal cavity organs lesion was studied on the example of an acute appendicitis. It includes enteropathogenic microorganisms, insufficiency of local immunity, deficiency of immunoglobulins, lysozym. Findings show the possibility in seeking the measures of prevention of emergent state, in particular, an acute appendicitis.

[New technology of the operative wound suturing as the purulent-inflammatory complications prophylaxis in urgent surgical abdominal diseases]. / Nova tekhnolohiia zashyvannia operatsiinoï rany iak profilaktyka hniino-zapal'nykh uskladnen' pry nevidkladnykh khirurhichnykh zakhvoriuvanniakh orhaniv cherevnoï porozhnyny.

New technology of the operative wound suturing was elaborated with performance of muscle-aponeurotic suture in 115 patients, operated on for emergent diseases, securing lowering of postoperative compications rate from 2.43 to 1.73%.

Rat DNA sequence associated with a complex form of DNA polymerase alpha in nonregenerating liver interacts with a ubiquitous transcription/replication factor Oct-1.

A ubiquitous mammalian transcription factor, Oct-1 (also known as OTF-1, NF-A1, OBP100, or NFIII), stimulates the initiation of replication of adenovirus DNA, and may also be involved in the activation of some chromosomal replication origins. If this is true, binding sites for Oct-1 should be present within regions responsible for the initiation of DNA replication. In this study such a binding site has been identified within a 340bp fragment that was originally isolated from a minor fraction of DNA associated with a complexed form of DNA polymerase alpha from nonregenerating rat liver, and which shows autonomous replication sequence activity in a transient transfection assay. Northern blot analysis was used to show that Oct-1 mRNA is induced in regenerating rat liver 6-14 h after hepatectomy.

[Increased expression of genes coding for replication proteins during the period of DNA synthesis]. / Povyshennaia ékspressiia genov, kodiruiushchikh belki replikatsii, v period sinteza DNK.

Individual mRNA coding for proteins of the alpha-polymerase complex were isolated from replicating hepatocytes. cDNAs were synthesized by reverse transcriptase. Three clones were identified by colony hybridization of the S period cDNA library. The sequences of these clones were complementary to the investigated mRNAs. Two clones named pr12 and pr167 revealed increased expressions in the S period. The level of mRNA pr127 does not change during liver regeneration. The amount of pr127 mRNA was about 1% of the total mRNA population. pr12, pr127 and pr167 mRNAs were isolated by the hybrid-selection method and were translated in a cell-free system. The products of translation were analysed by "activity" gel. It was shown that pr167 mRNA coded for protein 140 kDa with DNA polymerase activity. pr12 protein is an unknown component of the alpha-polymerase complex. We suggested that this protein participates in the initiation of DNA replication.

[Isolation and characteristics of endonuclease tightly bound to alpha-polymerase from the rat liver]. / Vydelenie i kharakteristika éndonukleazy, zhestko sviazannoi s alpha-polimerazoi pecheni krysy.

Three major polypeptides are found in purified DNA polymerase alpha from rat liver: 160, 77 and 58 kDa. The electrophoretic analysis has identified polypeptide 160 kDa as the catalytically active subunit of DNA polymerase alpha. The other two polypeptides showed no DNA polymerase activity. Individual polypeptide p77 kDa purified by sodium dodecyl sulfate polyacrylamide gel electrophoresis was used to produce antibodies in rabbits. Immunoblot analysis indicated that the complex DNA polymerase alpha-3'-5'-exonuclease contained polypeptide p77 kDa. To elucidate the function of the p77 kDa protein we have prepared an immunoabsorbent column with antibodies against the p77 kDa polypeptide. The antibody column purified p77 kDa protein was homogeneous according to sodium dodecyl sulfate gel electrophoresis. The activity of alpha-polymerase was increased approximately 10-fold as a result of purification of DNA polymerase alpha from the p77 kDa protein. The in vitro experiments showed the identity of the p77 kDa polypeptide to endonuclease. It cleaved both single-stranded and double-stranded DNA. The function of endonuclease p77 kDA in complex with DNA polymerase alpha remains obscure.

[Identification and characteristics of mRNA's showing increased levels during DNA replication]. / Identifikatsiia i kharakteristika mRNK, soderzhanie kotorykh povysheno v period replikatsii DNK.

A library of double-stranded cDNA was prepared using poly (A) + RNA from regenerating rat liver 20 h after partial hepatectomy. Differential screening of 350 recombinant clones with cDNA-G0 and cDNA-S identified eleven cDNA clones (pRL), the sequences of which were preferentially expressed during the DNA replication period. Levels of mRNAs complementary to these clones were 2--10-fold higher in the S-period, than in G0. Using plasmid cDNAs to different mRNA, pRL we have investigated the changes in the levels of mRNA pRL during liver regeneration. The level of mRNA mRL2 and pRL79 was increased just before DNA replication. mRNA pRL35 accumulates after partial hepatectomy with the maximum at 6 h. The augment of two other mRNA concentrations was expressed to a lesser extent. Northern-blot analysis allowed to determine the individual dual mRNAs corresponding to each of the three clones with their sizes ranging from about 1650 to 3900 bases. Three mRNAs (pRL35, 67 and 79) were shown (by hybrid-selected translation) to code for proteins of about 100, 140 and 120 kDa, respectively.

[Effect of the concentration ratio of bi- and monovalent ions on the functional activity of 30S ribosome subunits of Escherichia coli]. / Vliianie sootnosheniia kontsentratsii dvukh- i odnovalentnykh kationov na funktsional'nuiu aktivnost' 30S subchastits ribosom Escherichia coli.

Experiments on poly(U)-dependent binding of Phe-tRNAPhe to 30S subunits revealed the existence of a critical [Mg2+]/[NH4+] ratio in a medium (approximately 0.05-0.1) with respect to the binding capacity of subunits. If the ratio is greater than the critical one, 30S subunits undergo reversible inactivation even at the highest Mg2+ concentrations (up to 20 mM). The stronger is the deviation from the [Mg2+]/[NH4+] value = 0.05-0.1, the greater are both the rate and extent of such an inactivation. Two sites for tRNA in initially active 30S subunits have been shown to be inactivated in an interdependent way. On the other hand, a progressive decrease of [Mg2+]/[NH4+] ratio in a medium (from the value of 0.05 and lower) does not produce inactivation, but rather results in reduced affinity constants of Phe-tRNAPhe for active sites of 30S subunits.