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Nathan Goodyear

Validation of salivary testosterone as a screening test for male hypogonadism - 0 views

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    This study reviewed two studies and both validated salivary testosterone as a method of testing. The statistical significance was very high. Additionally, they found a 47% decline in testosterone over the study lifespan of a man. So, again, what is the opposition to saliva testing? The only thing I can think of is resistance to change and/or lack of education. As a scientist, neither is acceptable.
Nathan Goodyear

Salivary testosterone: relationship to... [Clin Endocrinol (Oxf). 1982] - PubMed - NCBI - 0 views

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    salivary testosterone correlates with free "biologically available" testosterone in women.
Nathan Goodyear

Salivary and plasma cortisol and testosterone r... [J Sports Sci. 2013] - PubMed - NCBI - 0 views

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    Plasma and salivary cortisol and Testosterone levels correlated in small study that looked at post-training hormones changes in athletes.  Cortisol and Testosterone peaked in all experimental groups. 
Nathan Goodyear

Seasonal variation of salivary testosterone in men, normally cycling women, and women u... - 0 views

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    study of 296 men with mean age at 22.7, have peak salivary Testosterone production in December and January. 
Nathan Goodyear

Salivary testosterone: a reliable approach to the ... [Clin Endocrinol (Oxf). 2007] - P... - 0 views

  • Our data showed that Sal-T is a reliable marker of testosterone bioavailability. The results support the inclusion of this biomarker as a noninvasive approach in the diagnosis of male androgen deficiency.
  • A cut-off value of Sal-T < or = 0.195 nm showed 100% sensibility and specificity to rule out hypogonadism.
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    Salivary testosterone: a reliable approach to the diagnosis of male hypogonadism.
Nathan Goodyear

Salivary Testosterone in Hirsutism: Correlations with Serum Testosterone and the Degree... - 0 views

  • SaT seems to relate to the bioavailable fraction of the hormone and, thus, appears to be an optimal method for studying hirsute women
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    salivary testing proves to be realiable testing to evaluate correlation between degree of hair growth and testosterone levels
Nathan Goodyear

ScienceDirect - Life Sciences : Direct Radioimmunoassay (RIA) of salivary testosterone:... - 0 views

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    salivary testosterone proven statistically reliable method to detect changes in the biologically active hormone.
Nathan Goodyear

Testosterone for secondary prevention in men with ischaemic heart disease? - 0 views

  • Androgens and in particular testosterone have an inverse relationship with fibrinogen such that low endogenous testosterone is associated with elevated fibrinogen
  • testosterone administration causes a significant fall in fibrinogen
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    this article looks at the use of normalization of testosterone levels in men with CAD.  This study presents the data that low T is associated with increased CAD, yet says more studies needed.  This study should have used salivary testing and been more definitive in their conclusion
Nathan Goodyear

Circadian variation in salivary testosterone across age classes in Ache Amerindian male... - 0 views

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    this article looked at normal testosterone rhythm  via saliva.  Normal testosterone peaks in am and is lowest in pm. The normal testosterone rhythm decreases as a man ages.  This is similar results as seen in serum.
Nathan Goodyear

Behaviour of saliva cortisol [C], testost... [Eur J Appl Physiol. 2003] - PubMed - NCBI - 0 views

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    salivary hormone evaluation reveals cortisol increases during athletic  competition due primarily to a increase in salivary cortisol production.  The result is a decrease in T:C ratio during competition.  In the recovery phase, cortisol decreases to baseline, but the testosterone rises above baseline, thus increasing the T:C ratio in the recovery phase.  This lasted up to 5 days in this study.
Nathan Goodyear

Salivary sex hormone measurement in a national, po... [J Gerontol B Psychol Sci Soc Sci... - 0 views

  • These data demonstrate a high cooperation rate with in-home salivary specimen collection from older adults and good validity of sex hormone measurements
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    salivary estradiol, progesterone, DHEA, and testosterone validated in study of 3,005 men and women
Nathan Goodyear

ScienceDirect.com - Hormones and Behavior - Salivary Testosterone Determination in Stud... - 0 views

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    High correlation of salivary and serum testosterone in children.  
Nathan Goodyear

Simultaneous determination of salivary testosterone and dehydroepiandrosterone using LC... - 0 views

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    salivary testosterone and DHEA using LC-MS/MS accuracy exceeds 98.5%.  Compare that with historical 50% resolution of pain with a hysterectomy.  There is no perfect test, but if accuracy exceeds 98%, you have  reliable test.
Nathan Goodyear

Salivary testosterone: Associations with depression, anxiety disorders, and antidepress... - 0 views

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    large study revealed that low salivary testosterone is associated with increased depression, anxiety, and other mood disorders.
Nathan Goodyear

Salivary testosterone for the diagnosis of androgen deficiency in end-stage renal disease - 0 views

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    salivary testosterone shown to effective in screening for androgen deficiency in men with ESRD.
Nathan Goodyear

ScienceDirect.com - Journal of Chromatography B - Simultaneous determination of salivar... - 0 views

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    LC-MS for salivary testosterone and DHEA validated.  Also, T and DHEA were shown to have specific diurnal rhythms.  Changes in levels were also followed after DHEA therapy.
Nathan Goodyear

Determination of salivary testosterone and an... [Clin Chim Acta. 2012] - PubMed - NCBI - 0 views

  • upper limit (the 97.5 percentile
  • reliable
  • simple to perform
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    salivary testosterone and androstenedione via mass spectroscopy shown to be valid.
Nathan Goodyear

Salivary testosterone, cortisol, and progesterone:... [Physiol Behav. 2010] - PubMed re... - 0 views

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    Salivary testosterone, cortisol, and progesterone: two-week stability, interhormone correlations, and effects of time of day, menstrual cycle, and oral contraceptive use on steroid hormone levels.
Nathan Goodyear

Salivary testosterone levels and major depressive ... [Br J Psychiatry. 1992] - PubMed ... - 0 views

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    Salivary testosterone levels and major depressive illness in men.
Nathan Goodyear

Salivary testosterone for the diagnosis of androge... [Nephrol Dial Transplant. 2010] -... - 0 views

  • These data demonstrate the value of morning Sal-T testing as a non-invasive approach to screen androgen status in ESRD patients.
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    Salivary Testosterone again validated
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