Stephen D Johnston M.D.
Radiologist | Diagnostic Radiology
5539 Marine Pkwy New Port Richey FL, 34652About
Dr. Stephen Johnston is a radiologist practicing in New Port Richey, FL. Dr. Johnston specializes in diagnosing and treating injuries and diseases using medical imaging techniques such as X-Rays, magnetic resonance imaging and computed tomography exams. These techniques offer accurate visibility to the inside of the patients body and help to detect otherwise hidden illnesses so that they can be treated quickly and efficiently.
Education and Training
Louisiana State University School of Medicine in New Orleans 1985
Provider Details
Expert Publications
Data provided by the National Library of Medicine- Ultrastructure, osmotic tolerance, glycerol toxicity and cryopreservation of caput and cauda epididymidal kangaroo spermatozoa.
- Use of a GnRH agonist and hCG to obtain an index of testosterone secretory capacity in the koala (Phascolarctos cinereus).
- Mutual interdependence of MSI1 (CAC3) and YAK1 in Saccharomyces cerevisiae.
- Ultrastructural observations of cryoinjury in kangaroo spermatozoa.
- The relationship between sperm morphology and chromatin integrity in the koala (Phascolarctos cinereus) as assessed by the Sperm Chromatin Dispersion test (SCDt).
- Successful artificial insemination in the koala (Phascolarctos cinereus) using extended and extended-chilled semen collected by electroejaculation.
- Control of the koala (Phascolarctos cinereus) anterior pituitary-gonadal axis with analogues of GnRH.
- Dimethylacetamide can be used as an alternative to glycerol for the successful cryopreservation of koala (Phascolarctos cinereus) spermatozoa.
- The effect of cryoprotectant on kangaroo sperm ultrastructure and mitochondrial function.
- Cryopreservation of kangaroo spermatozoa using alternative approaches that reduce cytotoxic exposure to glycerol.
- Artificial insemination in marsupials.
- Individual variability in post-thaw sperm survival in a captive koala population.
- Evidence that single-stranded DNA breaks are a normal feature of koala sperm chromatin, while double-stranded DNA breaks are indicative of DNA damage.
- Seasonal reproduction in wild and captive male koala (Phascolarctos cinereus) populations in south-east Queensland.
- Differential resistance of mammalian sperm chromatin to oxidative stress as assessed by a two-tailed comet assay.
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EDEN PRAIRIE, MN 55344Get Direction
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