[Long-term treatment of morphologically verified myocarditis: successes and probable errors. Case report].

Diagnosis and treatment of myocarditis can be challenging, including determining indications for heart transplantation. We present a 6-year medical history of a 54 years old patient with severe morphologically verified viral-negative lymphocytic myocarditis and systemic manifestations (onset of hemorrhagic vasculitis) combined with moderate coronary atherosclerosis, which regressed according to repeated coronary angiography. For 5 years, the patient received immunosuppressive therapy with methylprednisolone and azathioprine with a significant improvement.

[Comparative diagnostic value of data of intestinoscopy with biopsy obtained from different regions of the small intestine].

Aim: To study diagnostic value of intestinoscopy with biopsy of the mucosa from different portions of the small intestine in patients with chronic diarrhea and malabsorption.

Material And Methods: The examination of 116 patients with chronic diarrhea and malabsorption (endoscopic and histological study of biopsy specimens from different portions of the small intestine) detected gluten enteropathy (n = 51), Wipple's disease (n = 8), general variable hypogammaglobulinemia (n = 11), lymphangioectasy (n = 9), lymphangiomatosis (n = 1), lymphoma (n = 2), amyloidosis (n = 3), eosinophilic gastroenteritis (n = 1), duodenoejunitis without atrophy (n = 7). 23 patients had normal mucosa of the small intestine.

[Clinical, diagnostic and therapeutic features of tricuspid infectious endocarditis].

From 1987 to 1998, examination and treatment were conducted of 12 patients with infectious endocarditis of the tricuspid valve (TIE). 11 of them were operated. TIE was clinically characterized by lesser circulation thromboembolism and marked right ventricular failure.

[The potentials of intestinoscopy and guided biopsy in the diagnosis of diseases of the small intestine].

Aim: To ascertain the role of intestinoscopy in diagnosis of small intestinal diseases.

Materials And Methods: Intestinoscopy with multiple topographic biopsies was made with SIF-10 device (Olympus) in 92 patients.

Results: Of 60 patients with absorption disorders, the diagnosis of gluten enteropathy (GEP), Whipple's disease (WD), general variable hypogammaglobulinemia (GVHG) and small intestinal diverticulum was established in 38, 3, 5 and 1 patients, respectively.

tRNA regions which contact with the ribosomal poly(U)-programmed P-site.

Equilibrium binding affinity of yeast tRNA(Phe) for Escherichia coli poly(U)-programmed 70S ribosomal P-site was compared with corresponding affinities of several tRNA(Phe) 3'- and 5'-end-truncated derivatives, all containing the anticodon arm. Our findings strongly suggest that besides three 3'-terminal-CCA nucleotides (C74, C75 and A76), only the tRNA(Phe) anticodon arm (N28-N42) contains ribosomal P-site contact centers and that there are no such centers in the intermediate regions N1-N27 and N43-N73.

[Poly(U)-dependent interaction of yeast tRNA(Phe) and its fragments with Escherichia coli ribosomes. II. Localization of tRNA binding centers with a P-site].

Poli(U)-dependent binding of yeast tRNA(Phe) lacking the 3'-terminal CA or CCA residues, and fragments of tRNA prepared by splitting the tRNA(Phe) at the G18 or 7mG46 nucleotides, to the 70S ribosomal P-site was studied. Equilibrium binding constants and free energies of binding were measured. The contribution of C74 and C75 was estimated at 3.

[Poly(U)-dependent interaction of yeast tRNA(Phe) and its fragments with ribosomes from Escherichia coli].

The poly(U)-dependent bindings of yeast tRNAPhe, its derivative depleted of 3'-terminal adenosine, and 15-nucleotide having a sequence of yeast tRNAPhe anticodon arm to the P site of Escherichia coli 70S ribosomes were compared. The equilibrium and rate constants were determined. Data indicate that the anticodon arm (N28-N42) contributes the major fraction of the binding free energy (-45.

[Deacylated tRNA binds with 50S subunits of Escherichia coli ribosomes at a special site not corresponding to the P'-site].

In the presence of methanol 50S ribosomal subunits reveal two independents sites for binding of deacylated tRNA and/or AcPhe-tRNA. The site with lower affinity was identified with the donor (P') site as the dissociation constant (Ka) for AcPhe-tRNA was equal to the Michaelis constant for its reaction with puromycin both at 0 degrees C and 25 degrees C. Log Ka increases linearly with methanol concentration.