Biomedical subjects
Publications and source records attributed to M Gorsky.
A case of a relatively rare occurrence--a draining sinus tract on the chin which originated from an abscessed lower incisor--is presented. The sequence of treatment and mode of healing are discussed, and the importance of an awareness of this phenomenon for the differential diagnosis is stressed.
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Examples of panoramic radiography equipment in use are briefly reviewed and the differences pointed out between those operating on the principle of tomography and other "panoramic" instruments. The various uses to which panoramic radiography is put are described and the problems involved in using them explained. The advantages and disadvantages of panoramic radiography are listed and comparisons drawn between the degree of clarity and precision for diagnosis obtained with it as against that obtained using normal periapical radiographs.
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Saliva secretion stimulated by alpha adrenergic beta adrenergic and muscarinic cholinergic neurotransmitters was evaluated in young adult and old rats. Parotid saliva was collected following methoxamin (METH) (6 mg/kg), isoproterenal (ISO) (30 mg/kg), or pilocarpin (PILO) (7.5 mg/kg) as secretory stimuli. The flow rate and the concentrations of protein, Na+ and K+ were measured. Saliva flow rate was 40%-50% lower (P < 0.01) in old rats following METH and PILO, but there was no difference following ISO stimulation. Saliva of old rats stimulated by METH or PILO contained about 30%-40% more (P < 0.01) protein. Comparable protein levels were in saliva stimulated by ISO. No changes were found in Na+ and K+ concentrations in all saliva samples. These results suggest that the age-related alteration in flow rate is not a general phenomenon, but rather specific and limited to the high flow rate stimulants (alpha-adrenergic and muscarinic-cholinergic). Transport alteration from the circulatory system into the parotid gland may be the underlying mechanism.
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A bizarre and unexplained localized osteomyelitis was discovered in the mandible of an otherwise apparently healthy 36-year-old man. This strange oral manifestation was followed 2 years later by a diagnosis of Pneumocystis carinii pneumonia, which indicated full-blown AIDS. Could osteomyelitis of the mandible be an alarming oral manifestation of AIDS before the disease is manifested in other ways?