Ghrelin, Total ELISA Test
Description:... weight gain in rodents (3) and in humans, Ghrelin
levels peak prior to each meal and then fall to lower
levels immediately upon feeding.
In humans, circulating Ghrelin
levels are decreased in acute states of positive energy ...
Company:Diagnostic Systems Laboratories, Inc.
Aldosterone RIA Test
Description:...
Abnormally high plasma aldosterone
levels are observed in primary hyperaldosteronism, in which renin
levels are low, blood pressure is elevated and potassium
levels are decreased [3,5]. Abnormally high ...
Company:Diagnostic Systems Laboratories, Inc.
SHBG IRMA Test
Description:... progestins, glucocorticoids) serum
levels [2]. Abnormal serum SHBG
levels have been reported in a number of conditions, ... polycystic ovary disease) [1,2]. Serum SHBG
levels are inversely related to free, presumably ...
Company:Diagnostic Systems Laboratories, Inc.
Androstanediol Glucuronide RIA Test
Description:... DHEA-Sulfate and androstenedione.
Elevated
levels of serum 3alpha-diol G have been reported in ... G may be elevated in the presence of normal
levels of other circulating androgens [1,5,6]. Therefore, measurement of serum 3alpha-diol G
levels may be useful in the clinical evaluation and ...
Company:Diagnostic Systems Laboratories, Inc.
Androstanediol Glucuronide EIA Test
Description:... DHEA-Sulfate and androstenedione.
Elevated
levels of serum 3alpha-diol G have been reported in ... G may be elevated in the presence of normal
levels of other circulating androgens [1,5,6]. Therefore, measurement of serum 3alpha-diol G
levels may be useful in the clinical evaluation and ...
Company:Diagnostic Systems Laboratories, Inc.
IGFBP-1, Total IRMA Test
Description:... phosphorylated IGFBP-1 variants [7,9]. IGFBP-1
levels are inversely related to insulin concentrations ... are not correlated with growth hormone or glucose
levels [12,13]. Subsequently, measurement of IGFBP-1
levels may be useful as a marker of insulin action and ...
Company:Diagnostic Systems Laboratories, Inc.
IGFBP-1, Total ELISA Test
Description:... phosphorylated IGFBP-1 variants [7,9]. IGFBP-1
levels are inversely related to insulin concentrations ... are not correlated with growth hormone or glucose
levels [12,13]. Subsequently, measurement of IGFBP-1
levels may be useful as a marker of insulin action and ...
Company:Diagnostic Systems Laboratories, Inc.
Androstenedione EIA Test
Description:... testosterone [1]. However, serum androstenedione
levels often exceed testosterone in both normal and ... androgen biosynthesis. Elevated androstenedione
levels have been demonstrated in virilizing congenital adrenal hyperplasia [4]. Serum androstenedione
levels are also increased in polycystic ovary syndrome, ...
Company:Diagnostic Systems Laboratories, Inc.
Androstenedione RIA Test
Description:... testosterone [1]. However, serum androstenedione
levels often exceed testosterone in both normal and ... androgen biosynthesis. Elevated androstenedione
levels have been demonstrated in virilizing congenital adrenal hyperplasia [4]. Serum androstenedione
levels are also increased in polycystic ovary syndrome, ...
Company:Diagnostic Systems Laboratories, Inc.
Inhibin B ELISA Test
Description:... during the early follicular phase, very low
levels of inhibin A are found [2].
levels increase dramatically in the late follicular ... mid-luteal phase [2]. During pregnancy, inhibin A
levels in maternal serum are considerably higher. ...
Company:Diagnostic Systems Laboratories, Inc.
Inhibin A ELISA Test
Description:... during the early follicular phase, very low
levels of inhibin A are found [2].
levels increase dramatically in the late follicular ... mid-luteal phase [2]. During pregnancy, inhibin A
levels in maternal serum are considerably higher. ...
Company:Diagnostic Systems Laboratories, Inc.
IGF-II, w/ Extraction IRMA Test
Description:... variability during the day [6,7]. Serum
levels of IGF-II are also dependent on GH secretion. IGF-II
levels are low in GH deficiency [7], although IGF-II
levels may also decrease in GH excess and with exogenous ...
Company:Diagnostic Systems Laboratories, Inc.
IGF-II, w/ Extraction ELISA Test
Description:... variability during the day [6,7]. Serum
levels of IGF-II are also dependent on GH secretion. IGF-II
levels are low in GH deficiency [7], although IGF-II
levels may also decrease in GH excess and with exogenous ...
Company:Diagnostic Systems Laboratories, Inc.
IGF-II, Non-Extraction IRMA Test
Description:... variability during the day [6,7]. Serum
levels of IGF-II are also dependent on GH secretion. IGF-II
levels are low in GH deficiency [7], although IGF-II
levels may also decrease in GH excess and with exogenous ...
Company:Diagnostic Systems Laboratories, Inc.
IGF-II, Non-Extraction ELISA Test
Description:... variability during the day [6,7]. Serum
levels of IGF-II are also dependent on GH secretion. IGF-II
levels are low in GH deficiency [7], although IGF-II
levels may also decrease in GH excess and with exogenous ...
Company:Diagnostic Systems Laboratories, Inc.
Leptin IRMA Test
Description:... of body weight [1-3]. In the human, leptin
levels are elevated with increasing adiposity in both ... women [4]. A relationship between serum leptin
levels and several measures of adiposity (e.g. body mass ... or percent body fat) demonstrates that leptin
levels are elevated even in obese patients. The failure ...
Company:Diagnostic Systems Laboratories, Inc.
Leptin Soluble Receptor ELISA Test
Description:... to increasing fat stores. Increased serum leptin
levels signal the brain to stop eating and increase ... term energy balance [4]. Leptin expression and
levels are consistently associated with body adiposity and body mass index (BMI) [4]. In humans, leptin
levels are elevated with increasing adiposity in both ...
Company:Diagnostic Systems Laboratories, Inc.
Leptin ELISA Test
Description:... of body weight [1-3]. In the human, leptin
levels are elevated with increasing adiposity in both ... women [4]. A relationship between serum leptin
levels and several measures of adiposity (e.g. body mass ... or percent body fat) demonstrates that leptin
levels are elevated even in obese patients. The failure ...
Company:Diagnostic Systems Laboratories, Inc.
MIS/AMH ELISA Test
Description:... embryogenesis and continues throughout life.
levels drop following puberty, decreasing slowly to a ... MIS/AMH is maintained at relatively low
levels until menopause, at which time MIS/AMH falls again to undetectable
levels (as measured by immunoassay).
Potential ...
Company:Diagnostic Systems Laboratories, Inc.
Calcitonin IRMA Test
Description:... most evident in conditions associated with high
levels of bone remodeling (e.g. in Pagets disease) ... calcium homeostasis. Abnormally elevated
levels of calcitonin are characteristic of thyroid ... carcinoma [2,3]. Elevated serum calcitonin
levels may also occur in a variety of other ...
Company:Diagnostic Systems Laboratories, Inc.
AFP ELISA Test
Description:... liver and yolk sac [1]. Human fetal serum AFP
levels peak at ~14 weeks gestation, and production rates ... by transplacental transfer and thus AFP
levels in amniotic fluid and maternal serum generally ... ng/mL in maternal serum.
After birth, serum AFP
levels decline rapidly during the first year of life and ...
Company:Diagnostic Systems Laboratories, Inc.
DHEA RIA Test
Description:... DHEA is an important androgen as circulating DHEA
levels may be several-fold higher than testosterone ... of adrenal androgen synthesis. Abnormally low
levels may occur in hypoadrenalism, while elevated
levels occur in several conditions including virilizing ...
Company:Diagnostic Systems Laboratories, Inc.
DHEA EIA Test
Description:... DHEA is an important androgen as circulating DHEA
levels may be several-fold higher than testosterone ... of adrenal androgen synthesis. Abnormally low
levels may occur in hypoadrenalism, while elevated
levels occur in several conditions including virilizing ...
Company:Diagnostic Systems Laboratories, Inc.
Testosterone RIA Test
Description:... In prepubertal males, elevated testosterone
levels are found in precocious puberty [7] and in ... defects [5]. In adult males, low testosterone
levels are associated with various pathological ... In females of all ages, elevated testosterone
levels can be associated with a variety of virilizing ...
Company:Diagnostic Systems Laboratories, Inc.
TSH ELISA Test
Description:... regulated at both the pituitary and hypothalamic
levels by thyroid hormones. Low
levels of thyroid hormones lead to increased TSH secretion and elevated thyroid hormone
levels lead to decreased TSH secretion.
During human ...
Company:Diagnostic Systems Laboratories, Inc.
TSH IRMA Test
Description:... regulated at both the pituitary and hypothalamic
levels by thyroid hormones. Low
levels of thyroid hormones lead to increased TSH secretion and elevated thyroid hormone
levels lead to decreased TSH secretion.
During human ...
Company:Diagnostic Systems Laboratories, Inc.
IGFBP-3 IRMA Test
Description:... (i.e. IGF-I + IGF-II) [1]. In addition, total IGF
levels show higher correlation with GH in circulation than either IGF-I or IGF-II
levels alone [2]. IGFBP-3 is GH-dependent, however ... either pituitary or hypothalamic origin, IGFBP-3
levels are uniformly low. Blum et al. [3] reported that ...
Company:Diagnostic Systems Laboratories, Inc.
IGFBP-3 ELISA Test
Description:... (i.e. IGF-I + IGF-II) [1]. In addition, total IGF
levels show higher correlation with GH in circulation than either IGF-I or IGF-II
levels alone [2]. IGFBP-3 is GH-dependent, however ... either pituitary or hypothalamic origin, IGFBP-3
levels are uniformly low. Blum et al. [3] reported that ...
Company:Diagnostic Systems Laboratories, Inc.
Cortisol RIA Test
Description:... in urine in an unbound (free) form. Cortisol
levels follow a ACTH-dependent circadian rhythm with peak
levels in the early morning and a nadir at night. ... and psychological stress [4,5]. Elevated cortisol
levels and lack of diurnal variation have been ...
Company:Diagnostic Systems Laboratories, Inc.
Free IGF-I IRMA Test
Description:... in serum are dependent on age and sex.
levels increase from birth through mid-puberty, then decline to relatively stable
levels during adult life, with a modest decrease in elderly people. In addition, IGF-I
levels remain relatively stable throughout the day ....
Company:Diagnostic Systems Laboratories, Inc.
IGF-I IRMA Test (With Extraction)
Description:... in serum are dependent on age and sex.
levels increase from birth through mid-puberty, then decline to relatively stable
levels during adult life, with a modest decrease in elderly people. In addition, IGF-I
levels remain relatively stable throughout the day ....
Company:Diagnostic Systems Laboratories, Inc.
IGF-I ELISA Test (With Extraction)
Description:... in serum are dependent on age and sex.
levels increase from birth through mid-puberty, then decline to relatively stable
levels during adult life, with a modest decrease in elderly people. In addition, IGF-I
levels remain relatively stable throughout the day ....
Company:Diagnostic Systems Laboratories, Inc.
IGF-I IRMA Test (Non-Extraction)
Description:... in serum are dependent on age and sex.
levels increase from birth through mid-puberty, then decline to relatively stable
levels during adult life, with a modest decrease in elderly people. In addition, IGF-I
levels remain relatively stable throughout the day ....
Company:Diagnostic Systems Laboratories, Inc.
IGF-I ELISA Test (Non-Extraction)
Description:... in serum are dependent on age and sex.
levels increase from birth through mid-puberty, then decline to relatively stable
levels during adult life, with a modest decrease in elderly people. In addition, IGF-I
levels remain relatively stable throughout the day ....
Company:Diagnostic Systems Laboratories, Inc.
Free IGF-I ELISA Test
Description:... in serum are dependent on age and sex.
levels increase from birth through mid-puberty, then decline to relatively stable
levels during adult life, with a modest decrease in elderly people. In addition, IGF-I
levels remain relatively stable throughout the day ....
Company:Diagnostic Systems Laboratories, Inc.
DHEA-S-7 RIA Test
Description:... of adrenal androgen synthesis. Abnormally low
levels may occur in have been reported in hypoadrenalism [3], while elevated
levels occur in several conditions [2,4], e.g. ... is produced by the gonads, measurement of DHEA-S
levels may aid in the localization of androgen source in ...
Company:Diagnostic Systems Laboratories, Inc.
DHEA-S-7 EIA Test
Description:... of adrenal androgen synthesis. Abnormally low
levels may occur in have been reported in hypoadrenalism [3], while elevated
levels occur in several conditions [2,4], e.g. ... is produced by the gonads, measurement of DHEA-S
levels may aid in the localization of androgen source in ...
Company:Diagnostic Systems Laboratories, Inc.
DHEA-S-7 (saliva) EIA Test
Description:... of adrenal androgen synthesis. Abnormally low
levels may occur in have been reported in hypoadrenalism [3], while elevated
levels occur in several conditions [2,4], e.g. ... is produced by the gonads, measurement of DHEA-S
levels may aid in the localization of androgen source in ...
Company:Diagnostic Systems Laboratories, Inc.
DHEA-S RIA Test
Description:... of adrenal androgen synthesis. Abnormally low
levels may occur in have been reported in hypoadrenalism [3], while elevated
levels occur in several conditions [2,4], e.g. ... is produced by the gonads, measurement of DHEA-S
levels may aid in the localization of androgen source in ...
Company:Diagnostic Systems Laboratories, Inc.
FSH ELISA Test
Description:... phase of the menstrual cycle, increased
levels of estrogen secreted by the mature follicle exert ... feedback on the pituitary, resulting in low
levels of LH and FSH secretion. In men, FSH stimulates ... to stimulate spermatogenesis. Measurement of FSH
levels in serum are useful in the diagnosis and ...
Company:Diagnostic Systems Laboratories, Inc.