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T S Vates

Publications and source records attributed to T S Vates.

27 records · Page 2Linked to original sources
PubMed1987

Neurology residency training programs in the United States.

A survey of 127 neurology residency training programs (124 approved by the Accreditation Council for Graduate Medical Education; 3 by the American Osteopathic Association) in the United States indicated that 80% were sponsored by medical schools. Of the 2,700 MD neurology faculty in 1982, 3/5 were full-time. As of 1982, there were 1,300 neurology trainees, including 334 fourth-year postgraduates (PG4s); 21% were women, and 3% held DO degrees. From 1960 through 1983, about 5,000 PG4s were produced, and for 1984 through 1990 the program directors estimated that this number will be about 3,000; our own projection, however, was only 2,400.

Humans↗
PubMed1986

Scanning electron microscopy and chemical excystation of Fascioloides magna (Trematoda) metacercariae.

Scanning electron microscopy was used to study encysted metacercariae and newly excysted juveniles of Fascioloides magna. The outer cyst was rough, coarse and discontinuous in the ventral aspect; the inner cyst was smooth. The newly excysted metacercaria was plump and contained numerous tegumentary spines; large dome-shaped papillae were prominent around the oral sucker and on the rim of the acetabulum. Encysted metacercariae with outer cysts were excysted in an alkaline bile salts-trypsin medium at an elevated temperature in the absence of acid saline or acid pepsin pretreatment. Pretreatment in acid saline slightly decreased subsequent excystation, while pretreatment in acid pepsin slightly enhanced subsequent excystation in the alkaline bile salts-trypsin medium.

Animals↗
PubMed1986

Response of murine erythroleukemia cells to cis- and trans-diamminedichloroplatinum (II).

Cis-diamminedichloroplatinum II (cis-DDP), an antitumor drug and the inactive trans-isomer were studied to evaluate their effects on cell multiplication, DNA synthesis, and surface morphology of the murine erythroleukemia cells (clone 6A11A). Short-term treatment of cells (1 h) with 5 and 10 micrograms/ml of cis-DDP resulted in a significant inhibition of cell multiplication. Continuous treatment with cis-DDP (up to 144 h) significantly arrested cell growth at 1, 5, and 10 micrograms/ml. The cells exposed to 10 micrograms/ml trans-DDP exhibited a slight decrease in cell multiplication; however, the 25-micrograms/ml treatments showed a modest inhibition of cell growth. Continuous treatment with cis-DDP resulted in a concentration-dependent decrease in DNA synthesis, although low-dose treatment (0.05 and 0.1 microgram/ml), with a few exceptions, had no relative inhibitory effect. Likewise, trans-DDP treatments decreased tritiated thymidine incorporation; however, this inhibitory effect was not as drastic as with corresponding concentrations of cis-DDP. Scanning electron microscope studies revealed the formation of many giant cells and blebs at all short-term treatment concentrations of cis-DDP past the 48 h interval. Continuous treatment of cis-DDP at 1 micrograms/ml concentration produced giant cells with minute holes, whereas the 5 and 10 micrograms/ml exposure resulted in the formation of blebs and large holes and reduction of microvilli past the 48-h treatment period. At higher concentrations the continuous treatment of cis-DDP completely destroyed the cells. The surface morphology of trans-isomer treated cells, in most instances, resembled the corresponding untreated control cells.

Animals↗
PubMed1986

Neurologists in the United States--past, present, and future.

Neurologists in the United States were enumerated for each year from 1935 to 1984 on two bases: board certification (including Child Neurology and Psychiatry and Neurology) and completion of PG4 neurology residency training. The annual incidence of new neurologists was calculated at less than 200 until 1970; then it rose steadily to 380 in 1980, and plateaued thereafter at 385. The estimated number of neurologists present at one time (prevalence) was 1,500 in 1950, 2,400 in 1970, 4,600 in 1980, 8,100 in 1990, and 11,000 in 2000. These numbers for total neurologists will plateau at 12,200 by about 2010, at which time the number of certified neurologists will also plateau at 9,900. Both numbers are notably less than our prior estimate of needs: 16,500 neurologists by 1990, 19,100 in 2010.

Certification↗
PubMed1986

On national needs for neurologists in the United States.

Estimates of the number of neurologists needed in the United States have been widely divergent. For direct patient care needs alone in a US population of 243.5 million, the Joint Commission on Neurology (ANA-AAN) estimate was 14,000 neurologist, the Delphi Panel median (Battelle/GMENAC) 11,200, and the Advisory Panel (Battelle/GMENAC) 6,200; our review suggests a need for 12,600. Total needs for clinical neurologists including faculty were 8,400 (Advisory Panel), 14,500 (Delphi Panel), and 16,500 (ours) for respective rates of 3.44, 5.96, and 6.76 neurologists per 100,000 population.

Humans↗
PubMed1980

Generalized chorea associated with chronic subdural hematomas.

Two patients with chronic bilateral subdural hematomas developed symmetrical generalized choreiform movements. In one patient the chorea disappeared after evacuation of the hematomas, and in the other the movement improved. The latter patient has a family history of Huntington's disease.

Chorea↗