Photodynamic therapy in treatment of severe oral lichen planus. / Lechenie patsientov s tyazhelymi formami krasnogo ploskogo lishaya slizistoi obolochki rta s primeneniem fotodinamicheskoi terapii.

The aim of the study was to elaborate the rationale for the application of photodynamic therapy in complex treatment of patient with severe oral lichen planus. Complex clinical and laboratory examination and treatment was performed in 54 patients divided on 3 groups. Diagnosis of oral lichen planus was based on clinical, histological and immunohistochemical features. Group 1 received standard treatment, in the second group photodynamic therapy was conducted in addition to conventional treatment, patients in the third group received only photodynamic therapy. The study results proved photodynamic therapy to be useful tool in complex treatment of severe oral lichen planus.

[Immunomorphology of oral lichen planus].

The article is devoted to immunohistochemical study of reticular and erosive forms of oral lichen planus. Morphological examination of the reticular form revealed the increased number of Langerhans cells (CD1a), mast cells (CD25) and T lymphocytes (CD4, CD8, CD16) in the oral epithelium. Activation of these cells leads to the secretion of TNF-α and destruction of basal keratinocytes, which manifests as a focal reduction of intercellular protein expression of E-cadherin. Destruction of basal keratinocytes in a reticular form of oral lichen planus is accompanied by a significant decrease in proliferative activity of the basal cell layer (21.7±10.2%) compared with normal mucosa (33.6±7.0%), p=0.0045. In erosive form along with the above changes IgG and C3d complement's elements are revealed, which confirms the activation of immune complex mechanisms in the erosion area.

[Surgical policy and future of endo-surgery of closed abdominal injuries in severe combined trauma].

Results of examination and treatment of 646 patients with severe combined trauma and closed abdominal trauma are analyzed. Laparocentesis and laparoscopy were used for diagnosis. Laparocentesis (342 procedures) diagnosed injuries of the abdominal organs in 47% cases and excluded them in 33% cases that made a total of 80% of accurate diagnoses. Laparoscopy (304 procedures) provided accurate diagnosis in 99.34% cases. Laparoscopy did not reveal injuries that required additional surgical procedures in 56% patients, in the rest 44% patients surgical methods of treatment were used including laparotomy (29.2%) and endo-surgical procedures (14.8%). Algorithm of diagnosis and treatment is described.

[Medico-biological effect of natural electromagnetic variations]. / Mediko-biologicheskie éffekty estestvennykh élektromagnitnykh variatsii.

Emergency ambulance statistical data accumulated in Moscow during March 1983-October 1984 have been analyzed. Diurnal numbers of urgent hospitalization of patients in connection with suicides, mental disorders, myocardial infarction, defects of cerebrum vessels and arterial and venous diseases have been examined. Intensity and duration of planetary geomagnetic storms were used as magnetic activity indices. Comparison of geomagnetic and medical data rows has shown that at least 75% of magnetic storms caused increase in hospitalization of patients with the above-mentioned diseases on 30-80% at average. The dependence of the value of biotropic effect on the duration of effect and intensity of magnetic storm is observed.