1.Study on the Marker Steroids of New Zealand Deer (Cervus elaphus var. scoticus) Velvet Antler by UPLC-MS/MS and HPLC-PDA Methods
Nam Kyung LEE ; Kyoung Hwa JANG ; Jong Tae LEE ; Hee Won PARK ; Sung Tai HAN ; Gyo IN
Natural Product Sciences 2019;25(1):49-58
Eleven steroid hormones (SHs: androstene-3,17-dione, estrone, β-estradiol, α-estradiol, testosterone, dehydroepiandrosterone, 17á-hydroxyprogesterone, medroxyprogesterone, megestrol acetate, progesterone, and androsterone) were detected from New Zealand deer (Cervus elaphus var. scoticus) velvet antler (NZA, 鹿茸). A method for the quantification of eleven SHs was established by using ultraperformance liquid chromatography (UPLC)-MS/MS. The linearities (R² > 0.991), limits of quantification (LOQ values, 0.3 ng/mL to 23.1 ng/mL), intraday and interday precisions (relative standard deviation: RSD < 2.43%), and recovery rates (97.3% to 104.6%) for all eleven SHs were determined. In addition, a method for the quantification of three 7-oxycholesterols (7-O-CSs: 7-ketocholesterol, 7α-hydroxycholesterol, and 7β-hydroxycholesterol) in the NZA was established by using an HPLC-photodiode array (PDA) method. The linearities (R² > 0.999), LOQ values (30 ng/mL to 350 ng/mL), intraday and interday precisions (RSD < 1.93%), and recovery rates (97.2% to 103.5%) for the three 7-O-CSs were determined. These quantitative methods are accurate, precise, and reproducible. As a result, it is suggested that the five steroid compounds of androstene-3,17-dione, androsterone, 7-ketocholesterol, 7α-hydroxycholesterol, and 7β-hydroxycholesterol could be marker steroids of NZA. These methods can be applied to quantify or standardize the marker steroids present in NZA.
Androsterone
;
Animals
;
Antlers
;
Chromatography, Liquid
;
Deer
;
Dehydroepiandrosterone
;
Estrone
;
Medroxyprogesterone
;
Megestrol Acetate
;
Methods
;
New Zealand
;
Progesterone
;
Steroids
;
Testosterone
2.Diagnosis of an indistinct Leydig cell tumor by positron emission tomography-computed tomography
Jinkyoung KONG ; Yoo Mee PARK ; Young Sik CHOI ; SiHyun CHO ; Byung Seok LEE ; Joo Hyun PARK
Obstetrics & Gynecology Science 2019;62(3):194-198
A 51-year-old perimenopausal female patient presented with hirsutism and voice thickening which was started approximately one and a half years ago. Her initial hormone assay revealed elevated plasma testosterone, 5a-dihydrotestosterone, and dehydroepiandrosterone (DHEA) levels and therefore androgen-secreting tumor was first suspected. However, the lesion was inconspicuous on transvaginal sonography, abdominal-pelvic computed tomography (CT) scan, and pelvic magnetic resonance (MRI) imaging. Consequently, 18F-fluorodeoxyglucose (FDG) positron emission tomography-CT was performed, which localized the lesion as a focal FDG uptake within the right adnexa. Total laparoscopic hysterectomy with bilateral salpingo-oophorectomy was performed, and although visible gross mass lesions were not observed intraoperatively, pure Leydig cell tumor was pathologically confirmed within the right ovary. Plasma testosterone, 5a-dihydrotestosterone, and DHEA levels were normalized postoperatively. Clinical signs of virilization were also significantly resolved after 3-months of follow-up.
Dehydroepiandrosterone
;
Diagnosis
;
Electrons
;
Female
;
Follow-Up Studies
;
Hirsutism
;
Humans
;
Hysterectomy
;
Leydig Cell Tumor
;
Middle Aged
;
Ovary
;
Plasma
;
Sertoli-Leydig Cell Tumor
;
Testosterone
;
Virilism
;
Voice
3.The association between serum dehydroepiandrosterone sulfate (DHEAS) levels and job-related stress among female nurses
Seunghyeon CHO ; Won Ju PARK ; Wonyang KANG ; Hyeong Min LIM ; Ji Sung AHN ; Dae Young LIM ; Jai Dong MOON
Annals of Occupational and Environmental Medicine 2019;31(1):e18-
BACKGROUND: Dehydroepiandrosterone sulfate (DHEAS) is an endogenous steroid hormone produced by the adrenal gland. DHEAS has been suggested to play a protective role against psychosocial stress. The aim of this study was to investigate the association between job-related stress and blood concentrations of DHEAS according to occupational stress factors among female nurses. METHODS: A cross-sectional study was conducted among 118 premenopausal nurses from 4 departments (operating room, emergency room [ER], intensive care unit, and ward) of a university hospital. Participants were all rotating night shift workers who have worked for over a year and mean age of 33.5 ± 4.8 years. Data from structured questionnaires including the Korean Occupational Stress Score, Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), and Pittsburgh Sleep Quality Index (PSQI) were used. RESULTS: In the high job-related stressor group, scores of BDI, BAI, and PSQI were significantly higher than low-stressor group. ER nurses had relatively more work-burden related stressors, but they had significantly lower levels of anxiety and depression than other groups. And, ER nurses showed higher levels of DHEAS than the other department nurses. The differences were significant (p = 0.003). Additionally, there was a statistically significant difference even after adjusting for factors that could affect level of DHEAS, such as age, body mass index, drinking, and physical activity (p = 0.039). CONCLUSIONS: This result suggests the possibility that DHEAS may play a role as a marker of proper stress management. The capacity to secrete DHEAS is not simply due to workload or job stressor but could be determined depending on how individuals and groups deal with and resolve stress. Proper resolution of stress may affect positive hormone secretion.
Adrenal Glands
;
Anxiety
;
Body Mass Index
;
Cross-Sectional Studies
;
Dehydroepiandrosterone Sulfate
;
Dehydroepiandrosterone
;
Depression
;
Drinking
;
Emergency Service, Hospital
;
Female
;
Humans
;
Intensive Care Units
;
Motor Activity
4.Spinal Nitric Oxide Synthase Type II Increases Neurosteroid-metabolizing Cytochrome P450c17 Expression in a Rodent Model of Neuropathic Pain
Sheu Ran CHOI ; Alvin J BEITZ ; Jang Hern LEE
Experimental Neurobiology 2019;28(4):516-528
We have previously demonstrated that the neurosteroid dehydroepiandrosterone sulfate (DHEAS) induces functional potentiation of N-methyl-D-aspartate (NMDA) receptors via increases in phosphorylation of NMDA receptor GluN1 subunit (pGluN1). However, the modulatory mechanisms responsible for the expression of the DHEA-synthesizing enzyme, cytochrome P450c17 following peripheral nerve injury have yet to be examined. Here we determined whether oxidative stress induced by the spinal activation of nitric oxide synthase type II (NOS-II) modulates the expression of P450c17 and whether this process contributes to the development of neuropathic pain in rats. Chronic constriction injury (CCI) of the sciatic nerve induced a significant increase in the expression of NOS-II in microglial cells and NO levels in the lumbar spinal cord dorsal horn at postoperative day 5. Intrathecal administration of the NOS-II inhibitor, L-NIL during the induction phase of neuropathic pain (postoperative days 0~5) significantly reduced the CCI-induced development of mechanical allodynia and thermal hyperalgesia. Sciatic nerve injury increased the expression of PKC- and PKA-dependent pGluN1 as well as the mRNA and protein levels of P450c17 in the spinal cord at postoperative day 5, and these increases were suppressed by repeated administration of L-NIL. Co-administration of DHEAS together with L-NIL restored the development of neuropathic pain and pGluN1 that were originally inhibited by L-NIL administration alone. Collectively these results provide strong support for the hypothesis that activation of NOS-II increases the mRNA and protein levels of P450c17 in the spinal cord, ultimately leading to the development of central sensitization and neuropathic pain induced by peripheral nerve injury.
Animals
;
Central Nervous System Sensitization
;
Constriction
;
Cytochromes
;
Dehydroepiandrosterone
;
Dehydroepiandrosterone Sulfate
;
Hyperalgesia
;
N-Methylaspartate
;
Neuralgia
;
Nitric Oxide Synthase Type II
;
Nitric Oxide Synthase
;
Nitric Oxide
;
Oxidative Stress
;
Peripheral Nerve Injuries
;
Phosphorylation
;
Rats
;
RNA, Messenger
;
Rodentia
;
Sciatic Nerve
;
Spinal Cord
;
Spinal Cord Dorsal Horn
5.Estrogen-secreting adrenocortical carcinoma
You JEONG ; Sung Chul CHO ; Hee Joon CHO ; Ji Soo SONG ; Joon Seog KONG ; Jong Wook PARK ; Yun Hyi KU
Yeungnam University Journal of Medicine 2019;36(1):54-58
Adrenocortical carcinoma is a rare type of endocrine malignancy with an annual incidence of approximately 1–2 cases per million. The majority of these tumors secrete cortisol, and a few secrete aldosterone or androgen. Estrogen-secreting adrenocortical carcinomas are extremely rare, irrespective of the secretion status of other adrenocortical hormones. Here, we report the case of a 53-year-old man with a cortisol and estrogen-secreting adrenocortical carcinoma. The patient presented with gynecomastia and abdominal discomfort. Radiological assessment revealed a tumor measuring 21×15.3×12 cm localized to the retroperitoneum. A hormonal evaluation revealed increased levels of estradiol, dehydroepiandrosterone sulfate, and cortisol. The patient underwent a right adrenalectomy, and the pathological examination revealed an adrenocortical carcinoma with a Weiss' score of 6. After surgery, he was treated with adjuvant radiotherapy. Twenty-one months after treatment, the patient remains alive with no evidence of recurrence.
Adrenal Gland Neoplasms
;
Adrenalectomy
;
Adrenocortical Carcinoma
;
Aldosterone
;
Dehydroepiandrosterone Sulfate
;
Estradiol
;
Gynecomastia
;
Humans
;
Hydrocortisone
;
Incidence
;
Male
;
Middle Aged
;
Radiotherapy, Adjuvant
;
Recurrence
6.Live birth outcomes of vitrified embryos generated under growth hormone stimulation are improved for women categorized as poor-prognosis
Kevin N KEANE ; Yun YE ; Peter M HINCHLIFFE ; Sheena LP REGAN ; Satvinder S DHALIWAL ; John L YOVICH
Clinical and Experimental Reproductive Medicine 2019;46(4):178-188
OBJECTIVE: To determine the clinical pregnancy (CP) and live birth (LB) rates arising from frozen embryo transfers (FETs) that had been generated under the influence of in vitro fertilization (IVF) adjuvants given to women categorized as poor-prognosis.METHODS: A registered, single-center, retrospective study. A total of 1,119 patients with first FETs cycle include 310 patients with poor prognosis (109 treated with growth hormone [GH], (+)GH group vs. 201 treated with dehydroepiandrosterone, (–)GH group) and 809 patients with good prognosis (as control, (–)Adj (Good) group).RESULTS: The poor-prognosis women were significantly older, with a lower ovarian reserve than the (–)Adj (Good) group, and demonstrated lower chances of CP (p<0.005) and LB (p<0.005). After adjusting for confounders, the chances of both CP and LB in the (+)GH group were not significantly different from those in the (–)Adj (Good) group, indicating that the poor-prognosis patients given GH had similar outcomes to those with a good prognosis. Furthermore, the likelihood of LB was significantly higher for poor-prognosis women given GH than for those who did not receive GH (p<0.028). This was further confirmed in age-matched analyses.CONCLUSION: The embryos cryopreserved from fresh IVF cycles in which adjuvant GH had been administered to women classified as poor-prognosis showed a significant 2.7-fold higher LB rate in subsequent FET cycles than a matched poor-prognosis group. The women with a poor prognosis who were treated with GH had LB outcomes equivalent to those with a good prognosis. We therefore postulate that GH improves some aspect of oocyte quality that confers improved competency for implantation.
Dehydroepiandrosterone
;
Embryo Transfer
;
Embryonic Structures
;
Female
;
Fertilization in Vitro
;
Growth Hormone
;
Humans
;
Live Birth
;
Melatonin
;
Oocytes
;
Ovarian Reserve
;
Pregnancy
;
Prognosis
;
Retrospective Studies
;
Single Embryo Transfer
7.Initial 3-month dynamics of dehydroepiandrosterone sulfate can predict responsiveness to primary androgen deprivation therapy in patients with metastatic prostate cancer.
Akihiro YANO ; Makoto KAGAWA ; Hideki TAKESHITA ; Yohei OKADA ; Makoto MOROZUMI ; Satoru KAWAKAMI
Asian Journal of Andrology 2019;21(6):635-636
8.Dehydroepiandrosterone and Erectile Function: A Review.
The World Journal of Men's Health 2018;36(3):183-191
To review the contemporary knowledge regarding the dehydroepiandrosterone and erectile function. Medline was reviewed for English-language journal articles spanning the time between January 1990 and December 2017, using the terms ‘erectile function’, ‘dehydroepiandrosterone’. We used original articles and review articles that found to be relevant to the purpose of this review. Criteria included all pertinent review articles, randomized controlled trials with tight methodological design, cohort studies and retrospective analyses. We also manually revised references from selected articles. Several interesting studies have addressed the age-related decline in dehydroepiandrosterone levels with many age-related phenomena or deterioration in various physiological functions. Particularly, aging; neurological functions including decreased well-being, cognition, and memory; increased depression, decreased bone mineral density, obesity, diabetes, increased cardiovascular morbidity, erectile dysfunction (ED), and decreased libido. Supporting this result, some trials of dehydroepiandrosterone supplementation in healthy, middle-aged, and elderly subjects have reported improvements in different aspects of well-being. Several studies had demonstrated that dehydroepiandrosterone level is declined as a part of aging. Large-scale well-designed prospective studies are warranted to better define indications and therapeutic implications of dehydroepiandrosterone in men with ED.
Aged
;
Aging
;
Androgens
;
Bone Density
;
Cognition
;
Cohort Studies
;
Dehydroepiandrosterone*
;
Depression
;
Erectile Dysfunction
;
Humans
;
Libido
;
Male
;
Memory
;
Obesity
;
Prospective Studies
;
Retrospective Studies
;
Testosterone
9.Functional Identification of Compound Heterozygous Mutations in the CYP17A1 Gene Resulting in Combined 17α-Hydroxylase/17,20-Lyase Deficiency.
Eun Yeong MO ; Ji Young LEE ; Su Yeon KIM ; Min Ji KIM ; Eun Sook KIM ; Seungok LEE ; Je Ho HAN ; Sung Dae MOON
Endocrinology and Metabolism 2018;33(3):413-422
BACKGROUND: We previously reported a patient with congenital adrenal hyperplasia (CAH) with compound heterozygous mutations in the cytochrome P450 17A1 (CYP17A1) gene. One allele had a p.His373Leu and the other a new p.Glu383fsX36 mutation. The aim of this study was to investigate the functional properties of a new allele present in a compound heterozygote of CYP17A1. METHODS: To understand how p.His373Leu and p.Glu383fsX36 affect P450c17 enzymatic activity, wild type and mutant CYP17A1 cDNAs were cloned into flag-tagged pcDNA3 vector and introduced into human embryonic kidney cells 293T (HEK293T) cells. Protein expression levels of CYP17A1 were then analyzed. And the activities of 17α-hydroxylase and 17,20-lyase of CYP17A1 were evaluated by measuring the conversion of progesterone to 17α-hydroxyprogesterone and of 17α-hydroxypregnenolone to dehydroepiandrosterone, respectively. In addition a computer model was used to create the three-dimensional structure of the mutant CYP17A1 enzymes. RESULTS: Production of the p.His373Leu mutant protein was significantly lower than that of the wild type protein, and the p.Glu383fsX36 protein was hardly produced. Similarly the enzymatic activity derived from the p.His373Leu mutant vector was significantly lower than that obtained from the wild type vector, and little activity was obtained from the p.Glu383fsX36 vector. Three-dimensional modeling of the enzyme showed that p.His373 was located in region important for heme-binding and proper folding. Neither the p.His373Leu nor the p.Glu383fsX36 mutant protein formed a heme-binding structure. CONCLUSION: Enzyme activity measured in both mutants disappeared completely in both 17α-hydroxylase and 17,20-lyase. This result accounts for the clinical manifestations of the patient with the compound heterozygous CYP17A1 mutations.
Adrenal Hyperplasia, Congenital
;
Alleles
;
Clone Cells
;
Computer Simulation
;
Cytochrome P-450 Enzyme System
;
Dehydroepiandrosterone
;
DNA, Complementary
;
Heterozygote
;
Humans
;
Kidney
;
Mutant Proteins
;
Progesterone
;
Steroid 17-alpha-Hydroxylase
10.The Association between Dehydroepiandrosterone Sulfate (DHEA-S) and Bone Mineral Density in Korean Men and Women.
Seung Gun PARK ; Sena HWANG ; Jong Suk KIM ; Kyung Chae PARK ; Yuri KWON ; Kyong Chol KIM
Journal of Bone Metabolism 2017;24(1):31-36
BACKGROUND: The relationship between dehydroepiandrosterone sulfate (DHEA-S) and bone mineral density (BMD) is controversial. And findings of most studies that have investigated this relationship are restricted to postmenopausal women. In this study, we investigated the relationship between serum DHEA-S and BMD in both men and women. METHODS: This cross-sectional study evaluated a total of 294 healthy Korean participants through a medical examination program. And a subgroup of 154 participants was subjected to a longitudinal analysis. We measured BMD by dual energy X-ray absorptiometry and assayed DHEA-S by a chemiluminescent immunoassay. RESULTS: We evaluated the association between serum DHEA-S concentration and BMD at the femur trochanter after adjusting for cofounders such as age, body mass index, lifestyle factors, serum cortisol level, serum insulin-like growth factor 1 (IGF-1) level, and sex. Through our longitudinal study, we found that the changes in BMD at the total spine, at the femur neck, and at the femur trochanter were all smaller in the ΔDHEA-S <0 group than in the ΔDHEA-S >0 group. CONCLUSIONS: We found that there was a positive correlation between serum DHEA-S and femur BMD, which suggests that controlling serum DHEA-S levels may retard age-related BMD reduction in Koreans.
Absorptiometry, Photon
;
Aging
;
Body Mass Index
;
Bone Density*
;
Cross-Sectional Studies
;
Dehydroepiandrosterone Sulfate*
;
Dehydroepiandrosterone*
;
Female
;
Femur
;
Femur Neck
;
Humans
;
Hydrocortisone
;
Immunoassay
;
Life Style
;
Longitudinal Studies
;
Male
;
Osteoporosis
;
Spine

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