Curiosine administration for management of wound process after middle ear operations in otitis media

Curiosine solution was used in surgical treatment of 80 patients with chronic otitis media purulenta early after the intervention. Otoscopic, cytological and bacteriological examinations have demonstrated that the drug creates physiological conditions for activation, migration and division of cells participating in tissue regeneration, it promotes bacterial decontamination of the wound. Curiosine can be used after radical operations on the middle ear.     

Clinico-laboratory assessment of oframax (cefriaxone) in the treatment of infectious-inflammatory diseases

AIM: To try efficacy and safety of ophramax (cephtriaxon) made in India ("Ranbaxy") in infectious-inflammatory diseases treated in a general hospital. MATERIAL AND METHODS: Ophramax was given in a dose 1 to 4 g/day to 23 patients with pneumonia, chronic bronchitis, soft tissue infection, enterocolitis, etc. Therapeutic effect was examined with bacteriological identification of the infective agents, antibioticograms, agar diffusion test. RESULTS: High sensitivity of pathogens to ophramax was observed in bronchopulmonary diseases (90.7%). In other infections sensitivity of the pathogens was 59.3%. Enterococci were the only highly resistant pathogens (40.5%). Ophramax remains in the body in sufficiently high concentrations for 24 hours. This attributes to good therapeutic effect. CONCLUSION: Clinico-microbiological and pharmacokinetic findings show that ophramax can be used as a basic drug for treatment of different infectious-inflammatory diseases. Once-a-day regimen is a great advantage of ophramax.     

Feasibilities of cytological diagnosis in the static telepathology mode

Results of cytological diagnosis in the static telepathology mode are analyzed. Three expert cytologists made the diagnosis on the basis of images of cytological preparations obtained from 94 patients with tumors of soft tissues and bones. A total of 113 diagnoses were correct: benign or malignant type of the tumor and its histological type were identified. In general, a total of 152 (88.9%) diagnoses were correct as regards their significance for treatment strategy. Errors classified as groups 3 and 4 were the most significant (erroneous assessment of tumor type--benign or malignant--in 6.4% cases). Analysis of discrepancies between cytological and pathoanatomical diagnoses and data of routine optic microscopy of similar cytological preparations of the same material (bone and soft tissue tumors) showed the same value: 6.8% of cytological and pathoanatomical diagnoses were at disagreement (groups 3 and 4 of errors). Therefore, telepathology can be resorted to for consultations and discussion of obscure cases. It is particularly important for a morphologist to discuss complex cases by means of telepathology at a specialized institution, distant from him or her.     

Rapid relief of block by mecamylamine of neuronal nicotinic acetylcholine receptors of rat chromaffin cells in vitro: an electrophysiological and modeling study

The mechanism responsible for the blocking action of mecamylamine on neuronal nicotinic acetylcholine receptors (nAChRs) was studied on rat isolated chromaffin cells recorded under whole-cell patch clamp. Mecamylamine strongly depressed (IC(50) = 0.34 microM) inward currents elicited by short pulses of nicotine, an effect slowly reversible on wash. The mecamylamine block was voltage-dependent and promptly relieved by a protocol combining membrane depolarization with a nicotine pulse. Either depolarization or nicotine pulses were insufficient per se to elicit block relief. Block relief was transient; response depression returned in a use-dependent manner. Exposure to mecamylamine failed to block nAChRs if they were not activated by nicotine or if they were activated at positive membrane potentials. These data suggest that mecamylamine could not interact with receptors either at rest or at depolarized level. Other nicotinic antagonists like dihydro-beta-erythroidine or tubocurarine did not share this action of mecamylamine although proadifen partly mimicked it. Mecamylamine is suggested to penetrate and block open nAChRs that would subsequently close and trap this antagonist. Computer modeling indicated that the mechanism of mecamylamine blocking action could be described by assuming that 1) mecamylamine-blocked receptors possessed a much slower, voltage-dependent isomerization rate, 2) the rate constant for mecamylamine unbinding was large and poorly voltage dependent. Hence, channel reopening plus depolarization allowed mecamylamine escape and block relief. In the presence of mecamylamine, therefore, nAChRs acquire the new property of operating as coincidence detectors for concomitant changes in membrane potential and receptor occupancy.