Pregnanetriol
(Synonyms: 孕三醇) 目录号 : GC48724A metabolite of 17α-hydroxyprogesterone
Cas No.:1098-45-9
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >95.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Pregnanetriol is a metabolite of 17α-hydroxyprogesterone .1,2 It is formed from 17α-hydroxyprogesterone by reduction of the C-20 ketone.2 Urinary levels of pregnanetriol are elevated in patients with 21-hydroxylase deficiency and congenital adrenal hyperplasia.3,4
1.Kamrath, C., Hartmann, M.F., Boettcher, C., et al.Diagnosis of 21-hydroxylase deficiency by urinary metabolite ratios using gas chromatography-mass spectrometry analysis: Reference values for neonates and infantsJ. Steroid Biochem. Mol. Biol.15610-16(2016) 2.Schiffer, L., Barnard, L., Baranowski, E.S., et al.Human steroid biosynthesis, metabolism and excretion are differentially reflected by serum and urine steroid metabolomes: A comprehensive reviewJ. Steroid Biochem. Mol. Biol.194105439(2019) 3.Disorders of steroidogenesis guide to steroid profiling and biochemical diagnosis1(2019) 4.Shackleton, C.H.L.Role of a disordered steroid metabolome in the elucidation of sterol and steroid biosynthesisLipids47(1)1-12(2012)
| Cas No. | 1098-45-9 | SDF | |
| 别名 | 孕三醇 | ||
| Canonical SMILES | C[C@@]12[C@](CC[C@]2(O)[C@H](C)O)([H])[C@@]3([H])[C@@](CC1)([H])[C@@]4([C@](C[C@@H](CC4)O)([H])CC3)C | ||
| 分子式 | C21H36O3 | 分子量 | 336.5 |
| 溶解度 | Methanol: soluble | 储存条件 | -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.9718 mL | 14.8588 mL | 29.7177 mL |
| 5 mM | 0.5944 mL | 2.9718 mL | 5.9435 mL |
| 10 mM | 0.2972 mL | 1.4859 mL | 2.9718 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
First Morning Pregnanetriol and 17-Hydroxyprogesterone Correlated Significantly in 21-Hydroxylase Deficiency
Front Endocrinol (Lausanne) 2022 Jan 24;12:808254.PMID:35140686DOI:10.3389/fendo.2021.808254.
Background: Biochemically monitoring 21-hydroxylase deficiency (21-OHD) is challenging. Serum/blood 17-hydroxyprogesterone (17OHP) measurements are normally used for this purpose. Urinary Pregnanetriol (PT), a urinary metabolite of 17OHP, may also be used. Based on auxological data, we previously reported that the optimal first morning PT value fell in the range of 2.2-3.3 mg/gCr (95% confidence interval of the mean) and 0.59-6.0 mg/gCr (10th - 90th percentile) for monitoring 21-OHD treatment. No report thus far has directly compared the first morning urinary PT value with the 17OHP value at various times during the day. Objective: To explore the correlation between the first morning urinary PT value before glucocorticoid administration and the serum/blood 17OHP value at three time points, namely, before and two and four hours after glucocorticoid administration. Design: This was a prospective study done at two children's hospitals. Methods: In total, 25 patients with 21-OHD aged 3-25 years were recruited. Their urinary PT levels and 17OHP levels were measured for three days within a total period of one week. The first morning PT value was collected on all three days. Dried blood spots and serum were used to measure 17OHP. Results: The range for the first morning PT value for all the samples (n=69) was 0.10-56.1 mg/gCr. A significant, positive correlation was found between the first morning PT and 17OHP values before medication (r=0.87, p<0.01), and weaker correlation was observed between the first morning PT and 17OHP values after medication. Conclusions: The first morning PT correlated more significantly with 17OHP before the morning medication. Measuring the first morning PT value may be more practical and useful for monitoring 21-OHD biochemically.
Non-invasive monitoring of ovarian function in Asian elephants (Elephas maximus) by measurement of urinary 5 beta-pregnanetriol
J Reprod Fertil 1993 Nov;99(2):617-25.PMID:8107047DOI:10.1530/jrf.0.0990617.
The development of an enzymeimmunoassay for 5 beta-pregnanetriol and its use for non-invasive monitoring of reproductive cycles in Asian elephants is described. Gas chromatography-mass spectrometry (GCMS) and high performance liquid chromatography (HPLC) confirmed the presence of 5 beta-pregnane-3 alpha,17 alpha,20 alpha/beta-triols as the two most abundant urinary progesterone metabolites. The assay developed used the antiserum anti-5 beta-pregnane-17 alpha,20 alpha-diol-3 alpha-gamma l glucuronide but was designed to measure the free steroid in urine samples after hydrolysis and extraction. HPLC confirmed the presence of immunoreactive Pregnanetriol in urine, but indicated that the measurement was nonspecific. Immunoreactive Pregnanetriol concentrations were significantly correlated with the concentrations of both progesterone (r = 0.98, n = 269, P < 0.01) and 17 alpha-hydroxyprogesterone (r = 0.95, n = 205, P < 0.01), the metabolic precursor of Pregnanetriol. The mean +/- SEM deviation of cycles as determined by measurements of plasma progesterone, 17 alpha-hydroxyprogesterone and urinary Pregnanetriol, respectively, were 15.54 +/- 1.5 (n = 23, where n = number of cycles), 15.21 +/- 1.7 (n = 15) and 15.45 +/- 0.94 weeks (n = 20). These results demonstrate that it is possible to monitor ovarian function in Asian elephants by the measurement of urinary immunoreactive Pregnanetriol concentrations.
The radioimmunoassay of Pregnanetriol 3 alpha-glucuronide
J Steroid Biochem 1985 Jun;22(6):843-9.PMID:4021487DOI:10.1016/0022-4731(85)90295-x.
The hapten (5 beta-pregnane-17,20 alpha-diol-3 alpha-yl glucuronide) required to develop the radioimmunoassay was synthesized by an unambiguous chemical synthesis. An immunogenic complex was synthesized by coupling bovine serum albumin (BSA) to the glucuronide by mixed acid anhydride reaction. The immunogenic complex was used to induce the formation of specific antibodies in rabbits. In addition, the required radioligand [6,7-3H]5 beta-pregnanetriol 3 alpha-glucuronide was prepared with appropriate specific radioactivity. The characteristics of the antibody were determined with regard to specificity and sensitivity and the precision and accuracy of the assay method established. As applied to urine samples this method is superior to existing procedures in that they avoid the hydrolysis step and can be used directly on diluted urine. Examples have been given of useful application of this technique in clinical practice.
Prediction and detection of ovulation by the measurement of urinary pregnanetriol-3 alpha-glucuronide. A multicentre study
J Steroid Biochem 1986 Apr;24(4):921-7.PMID:3702465DOI:10.1016/0022-4731(86)90455-3.
The urine excretion pattern of Pregnanetriol 3 alpha-glucuronide (PT-3G) throughout the menstrual cycle in 26 normal ovulating women was evaluated in a multicentre study. The concentration of PT-3G was measured by radioimmunoassay in daily samples of early morning urine (EMU) from 20 women for three consecutive cycles and from 6 women who conceived during the period of study. PT-3G was also measured in 24-h urine samples from 5 additional women. The peak of urine LH was used as a reference point for ovulation (Day 0). The EMU concentration of PT-3G in the follicular phase of 60 normal ovulatory cycles was 5.10 mumol/l +/- 0.11 (arithmetic mean +/- SE). The first PT-3G defined rise (CUSUM analysis) occurred during the late follicular phase (Days -3 to 0) with a PT-3G maximum excretion (9.69 mumol/1 +/- 0.55) on Day 0, whereas a PT-3G excretion peak occurred during mid-luteal phase (Days +5 to +9). The overall PT-3G excretion during the luteal phase (8.06 mumol/1 +/- 0.17) was significantly higher than that of the follicular phase (P less than 0.001). A further sustained increase in PT-3G excretion was noted after day +11 in the conceptional cycles. The 24-h excretion profile of PT-3G was similar to that obtained in EMU samples. No inter-centre significant variation was noticed in terms of PT-3G concentration values. The results were interpreted as demonstrating that the PT-3G excretion profile throughout the cycle exhibits a close resemblance to that of serum 17-OH progesterone. The data also indicates that although the immunoanalytical measurement of this urine steroid metabolite does not give an early sign for the occurrence of ovulation, it can be used for both the immediate prediction and the detection of ovulation.
Urinary Pregnanetriol excretion in hirsutism
Clin Chim Acta 1977 Oct 15;80(2):373-9.PMID:199379DOI:10.1016/0009-8981(77)90046-8.
Eighteen consecutive hirsute women attending an endocrine clinic have been studied by measurement of the urinary Pregnanetriol excretion before and following the concurrent administration of corticotrophin and metyrapone. An abnormal increment in Pregnanetriol excretion was observed in 11 of these 18 patients. It is suggested that this is evidence that an adrenal abnormality, probably operative at the 21-hydroxylase level, might be a factor responsible for the hirsutism in these 11 patients. Five adrenalectomized women who were also studied showed no significant increase in urinary Pregnanetriol excretion in response to concurrent corticotrophin and metyrapone administration.