• The Journal of Pediatrics of Korean Medicine
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• v.28 no.4
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• pp.64-70
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• 2014

Objectives The purpose of this study is to find out how taking oriental herbal medicine may affect the sex hormone levels in a patient who was diagnosed with prematurity. Methods We prescribed 120 cc of oriental herbal medicine twice daily for a month to a patient suspected of the precocious puberty due to 11 pg/ml of the estradiol level. Upon finishing the course of oriental herbal medicine, the patient was retested for the follicular stimulating hormone, luteinizng hormone and estradiol levels. Results After administration, all levels of luteininzing hormone, follicular stimulating hormone and estradiol were decreased. There was no diagnosable evidence for the idiopathic central precocious puberty in the gonadotropin releasing hormone stimulation. Conclusions Oriental herbal medicine is a good alternative treatment of choice for the precocious puberty. However, more in-depth studies are to be followed.

• Korean Journal of Poultry Science
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• v.33 no.4
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• pp.323-328
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• 2006

An experiment was conducted to investigate the effects of dietary betaine on egg production, estradiol, progesterone, and melatonin secretion in laying hens. Seventy two ISA-Brown laying hens were placed into individual cage and fed four different levels of betaine (0, 300, 600, 1,200 ppm) in diets for four weeks. Basal diets were mainly mixed with corn-soybean and contained 2,800 kcal/kg ME and 16% CP. Dietary supplementation of betaine showed significantly higher (p<0.05) egg weight and daily eggmass than controls, but did not have consistent influence on the egg production. The serum estradiol was statistically different in betaine treatments compared to that of control (p<0.05). No significant changes in serum progesterone concentrations were observed by the addition of betaine in diets. Serum melatonin concentrations also increased with betaine supplementation in diets (p<0.05). The results of this study indicate that the dietary betaine may contribute to increase daily eggmass, serum estradiol and melatonin concentration in laying hens.

• Clinical and Experimental Reproductive Medicine
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• v.21 no.2
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• pp.191-200
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• 1994

The influence of hypoxanthine and ovarian steroids on the meiotic maturation process of mouse oocytes was investigated for the qualified application of culture medium in in vitro fertilization(IVF). Mouse oocytes were cultured in hypoxanthine and various ovarian steroids(progesterone, estradiol-17${\beta}$ and testosterone) and their effects on the oocyte maturation had been observed. When mouse oocytes were cultured in the various concentration(1-4mM) of hypoxanthine, meiotic maturation of cumulus cell-enclosed oocytes was inhibited by presence itself, which was a dose-dependent effect in meiotic arrest of mouse oocytes. The presence of progesterone, estradiol-17${\beta}$ and testosterone have made the mouse oocyte mature properly. Meanwhile maturation of cumulus cell-enclosed oocyte was severely inhibited by 3 hoursculture in the media of progesterone supplemented with hypoxanthine. However the continuous presence lasting 24 hours of progesterone even supplemented with hypoxanthine had got rid of the inhibition of oocytes maturation. Not only estradiol-17${\beta}$ supplemented with hypoxanthine but also testosterone supplemented with hypoxanthine exert the severe inhibition of the maturation of cumulus cell-enclosed oocytes for 3-hours culture. However the continuous presence lasting 24 hours of estradiol-17${\beta}$ and testosterone even supplemented with· hypoxanthine had relieved the inhibition of oocytes maturation. These results make us suggest that hypoxanthine inhibits the mouse oocyte maturation, particularly markedly in conjunction with ovarian steroids for short period, which indicated some sort of the synergistic inhibitory retationship between the ovarian steroids and hypoxanthine.

• Asian-Australasian Journal of Animal Sciences
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• v.13 no.2
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• pp.161-166
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• 2000

This study was designed to determine the effects of the insulin-like growth factor (IGF-1) and estradiol $17-{\beta}$ on the in vitro proliferation of stromal vascular cell from Hanwoo omental, subcutaneous, intermuscular and intramuscular adipose tissues. Cells were cultured in M199+20% newborn calf serum and the proliferation of cells was measured by direct microscopic cell counting and change of genomic DNA amount. Cell numbers increased slightly over the first 72 hour of culture and then increased greatly, regardless of adipose tissue depots. In IGF-1 treatment, the number of omental preadipocytes maintained highest level from the beginning to the 20th day of culture. However, in estradiol-$17{\beta}$ treatment, those tended to be lower than the control from the beginning of culture and significantly lower at the 24th day. When IGF-1 was added to subcutaneous preadipocytes, the numbers of cells were higher from 11th day than those from other treatments, although there was no statistical significance. For intermuscular preadipocytes treated with IGF-1, its numbers were significantly (p<0.05) higher at 11th day, and in the other days it showed a similar tendency to those of the subcutaneous tissue. In this experiment, preadipocytes were taken from 24 month old fully matured steers and the highest proliferation rate was shown in intramuscular tissue followed by those of subcutaneous preadipocytes. Addition of $5{\mu}M$ estradiol-$17{\beta}$ to the growth medium failed to promote the replication of Hanwoo preadipocytes, as indicated by direct cell counts and total genomic DNA content. As the culture period proceeded, the amounts of DNA were increased, but the patterns of increment were not consistent with the results of cell numbers.

• The Journal of Korean Obstetrics and Gynecology
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• v.21 no.2
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• pp.1-16
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• 2008

Purpose: In this rearch, we made a plan to investigate the effects of Changbuyeukgun-Tang(CET) on the polycystic ovary(PCOS) induced by estradiol valerate(EV) in rats. PCO was induced by single intramuscular injection with EV(4㎎) in female rats. Rats(n=8) in normal group were injected with sesame oil and orally administrated distilled water for 8weeks Rats in PCO control group(n=8) were injected with EV and orally administrated distilled water for 8weeks. Rats in CET treated group(n=8) were injected with EV and orally administrated CET for 8weeks. Methods: We measured the weights of the body, the ovary, the uterus and the adrenal gland. And also, we analyzed ovarian histopathology, NGF and CRF immunohistochemistry. Results: The results were as follows1. the weights(㎎) of the ovaries in CET treated group were significantly increased(p<0.001) compared with PCO control group. 2. the number of the mature follicles in CET treated group were significantly increased(p<0.01) compared with PCO control. 3. the number of the atresia follicles in CET treated group were significantly decreased(p<0.01) compared with PCO control. 4. the number of the corpora in CET treated group were significantly increased(p<0.05) compared with PCO control. 5. the expressions of NGF-immunoreactive cells in the ovarian granulosa cells of rats in CET treated group were less observed than PCO control group. Conclusion: According to these results, we finally concluded that Changbuyeukgun-Tang(CET) has the inhibitory effect on the development of EV-induced polycystic ovary. And we deduced that the effect of it may be related to the decreased NGF activities in the ovary.

• Proceedings of the Korean Society of Embryo Transfer Conference
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• 2002.11a
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• pp.114-114
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• 2002

포유동물에서 뇌와 부신에서 합성.분비되는 카테콜아민(Catecholamine, CA)계 신경전달물질인 dopamine(DA), norepinephrine(NE), epinephrine(E)은 체내 각종 생리현상의 조절에 필수적이며, 생식과 관련지어서는 시상하부-뇌하수체 간 GnRH-gonadotropin 호르몬 축의 활성을 조절하는 기능 외에도 번식과 관련된 여러 행동양식을 조절함이 잘 알려져 있다. 본 연구는 CA 생합성 효소들인 tyrosine hydroxylase(TH), dopamine beta-hydroxylase(DBH), phenylethanolamine-N-methyltransferase(PNMT)의 유전자 발현에 미치는 sex steroid의 영향을 조사하였다. 성숙한 암컷 횐쥐(SD strain)의 난소를 제거하고 1주 경과 후 vehicle(sesame oil; OVX+Oil 실험군) 또는 estradiol 17$\beta$(235ug/m1; OVX+E$_2$실험군)이 든 silastic capsule(길이 14mm; 내경 1.55mm; 외경 3.125mm)을 48 시간 동안 처리한 뒤 희생시켰다. 적출된 조직으로부터 RNA를 추출한 후 semi-quantitative RT-PCR을 시행하였다. (i) TH의 발현 정도는 OVX+Oil 군에서는 시상하부) substantia nigra(SNc)) 부신 순으로, OVX+E$_2$군에서는 SN글 부신) 시상하부 순으로 나타났다. TH 발현에 미치는 estradiol의 효과로 SNc과 부신에서는 유의한 증가를 보인데 비해 시상하부에서는 유의한 감소를 관찰하였다. (ii) DBH 발현 정도는 OVX+Oil군에서는 SNc> 부신> 시상 하부 순으로, OVX+E$_2$군에서는 부신＞ SNc＞ 시상하부 순이었다. DBH 발현에 미치는 estradiol의 효과로 SNc에서는 유의한 감소, 부신에서는 유의한 증가, 그리고 시상하부에서는 통계적 유의성은 없으나 감소하는 경향을 보였다. (iii) PNMT의 발현의 경우 SNc와 시상하부에서는 기보고된 바와 같이 alternative splicing에 의해 110bp 차이의 크고 작은 두 형태의 cDNA(PNMTI & PNMTs)가 증폭되었으나 부신에서는 작은 cDNA 만이 관찰되었다. PNMTs의 발현 정도는 OVX+Oil군과 OVX+E$_2$군에서 공히 부신＞ 시상하부＞ SNc 순이었고, PNMTI의 발현은 SNc가 시상하부 보다 다소 높은 경향이었으나 유의성은 없었다. PNMTs 발현에 미치는 estradiol의 효과로 SNc에서는 유의한 감소, 부신에서는 유의한 증가, 그리고 시상하부에서는 통계적 유의성은 없으나 증가하는 경향을 보였다. 본 연구에서는 CA 생합성 효소들의 유전자 발현의 조절에 미치는 estrogen 의 영향이 세포 기원이 neural crest cell인 부신 수질은 물론 뇌의 상이한 지역간에서도 조직특이적임을 관찰하였다. 이러한 결과는 각 조직에서의 estrogen 수용체 유형의 차이 혹은 작용 모드와 각 효소 유전자 발현 사이에 중요한 상관관계가 있음을 시사한다.

• Toxicological Research
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• v.16 no.3
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• pp.201-209
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• 2000

In association with the international validation program to establish a rodent uterotrophic assay, we conducted preliminary uterotrophic assay proposed by GECD using immature female rats. In the present study, oral and subcutaneous routes were chosen to compare the effects of estrogenic com-pounds in the two dosing regimens. The reference compound ethinyl estradiol (EE) and the antagonist ZM189154(ZM) were administered by gavage or subcutaneously (s.c.) to immature female SD rats from 20 to 22 days of age. For each study, sixty-six female rats were randomly assigned to eleven groups: Untreated control, EE 0,0.01, 0.03, 0.1, 0.3, 1.0,3.0 and 10.0 $\mu\textrm{g}$/kg, EE 3.0 $\mu\textrm{g}$/kg(gavage)/0.3 $\mu\textrm{g}$/kg(s.c) & ZM 0.1 mg/kg, and EE 3.0 $\mu\textrm{g}$/kg(gavage)/0.3 $\mu\textrm{g}$/kg (s.c) & ZM 1.0 mg/kg. There were no treatment-related changes in clinical signs, body weights, food consumption, and necropsy findings in any groups of two studies. The wet and blotted uterus weights increased dose-dependently. Histopathological examination revealed that diameter of uterine duct, height of uterine luminal epithelium. and height oj vaginal epithelium increased dose-dependently. The proliferating cell nuclear antigen (PCNA) immunoreactive cells were increased in number dose-dependently. The estrogenic effects observed in the present studies occurred at $\geq$ 0.3 $\mu\textrm{g}$/kg of oral dose and $\geq$ 0.1 $\mu\textrm{g}$/kg of s.c. dose. An antagonistic effect of ZM against EE was found in both uterus weight and histopathological parameters. From the results obtained, it can be concluded that dose-dependence of the uterotrophic assay using EE and ZM was well demonstrated by gavage and subcutaneous administration and that the estrogenic effects of EE by s.c. dose were higher than those by gavage administration. In addition, blotted uterus weight was more sensitive than wet uterus weight and vaginal epithelial height was found to be the most sensitive parameter among the parameters examined.

• Journal of Acupuncture Research
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• v.35 no.1
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• pp.21-27
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• 2018

Background: Examination of the effects of deer antler, old antler, and antler glue on postmenopausal osteoporosis in an ovariectomized Sprague-Dawley rat model. Methods: The study involved 7 experimental groups; SHAM (sham-operated rats), OVX (ovariectomized rats), E2 (ovariectomized rats with estradiol $10{\mu}g/kg$ daily, orally), DA (ovariectomized rats with deer antler extract 5.83 mg/kg), OA (ovariectomized rats with old antler extract 3.8 mg/kg), low-AG (ovariectomized rats with low dose of antler glue powder 12.5 mg/kg), high-AG (ovariectomized rats with high dose of antler glue powder 37.5 mg/kg). After 6 weeks of treatment, body weight, blood calcium, phosphorus, estradiol, liver [alkaline phosphatase (ALP), aspartate transaminase (AST), alanine transaminase (ALT)] and kidney [blood urea nitrogen (BUN)/creatinine ratio] function, and femoral bone mineral density (BMD) were measured. Results: The body weights of DA, OA, low-AG, and high-AG groups did not significantly differ from OVX group. Blood estradiol levels were significantly increased in the DA, low-AG, and high-AG groups compared to the OVX group. Blood calcium, phosphorus, ALP, AST, and ALT levels and BUN/creatinine ratio did not show significant changes in the DA, OA, low-AG, and high-AG groups. BMDs of the femur, and femoral head and neck were significantly increased in the low-AG group. In the OA group, the BMD of the femoral head and neck was significantly increased. Conclusion: Treatment with deer antler, or antler glue for 6 weeks was effective for increasing estradiol and femoral BMD in ovariectomized rats, suggesting that this may be of therapeutic benefit for osteoporosis.

• The Korea Journal of Herbology
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• v.35 no.6
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• pp.55-68
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• 2020

Objectives : We observed the possibilities that blue honeysuckle has favorable analgesic or refinement effects on the Primary dysmenorrhea (PD) in rats. Methods : Estradiol benzoate and oxytocin were used to induce the PD rat model. And Blue honeysuckle concentration lyophilized powders (BH) 500, 250 and 125 mg/kg and 500 mg/kg of Lonicerae Flos aqueous extract lyophilized powders (LF) were orally administered, once a day for 10 days at 30 min after each estradiol benzoate treatment. Then the changes on the body weights and gains during experimental periods, abdominal writhing response for analgesic activities, uterine weights, uterus lipid peroxidation, antioxidant defense system - glutathione contents, superoxide dismutase and catalase activities, NF-κB and COX-2 mRNA expressions were monitored with uterus histopathology including immunohistochemistry for tumor necrosis factor (TNF)-α and inducible nitric oxide synthase (iNOS).. Results : Inflammatory and oxidative stress mediated PD signs were favorably and dose-dependently inhibited by 10 days continuous oral administration of three different dosages of BH - 500, 250 and 125 mg/kg as comparable to those of indomethacin(IND) 5 mg/kg treated rats in BH 500 mg/kg administered PD rats, and similar to those of LF 500 mg/kg in BH 125 mg/kg, at least in a condition of the present PD rat model. Conclusions : The results suggest that BH has favorable analgesic and refinement activities on the estradiol benzoate and oxytocin treatment-induced PD signs through anti-inflammatory and antioxidative potentials.

• Animal cells and systems
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• v.1 no.1
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• pp.115-121
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• 1997

To precisely analyze the role of ovarian steroids in the regulation of laminin chain gene expression in mouse uterine tissues, the ovariectomized mouse model was used. Ovariectomized mice received a single injection of steroid hormones and total RNA was isolated from whole uterine tissues. Messenger RNA levels of each laminin chain (A, 81, and 82) were determined by competitive RT-peR procedures. Estradiol decreased mRNA levels of laminin 81 chain about two-fold, and 82 chain rather moderately. Estradiol-induced inhibition of laminin 81 and 82 chain mRNA levels were completely blocked by pretreatment with estrogen receptor antagonist tamoxifen. Estriol, a short acting estrogen which cannot induce hyperplastic responses of rodent uterine tissues, also showed an inhibitory effect on 81 and 82 chain mRNA levels, while estrone, an inactive estrogen, failed to influence either 8 chain mRNA levels. Effects of steroids on A chain mRNA level were quite different from those on 8 chains. Laminin A chain mRNA level was slightly increased by estradiol treatment, but negatively affected by progesterone. Progesterone treatment greatly increased both 8 chain mRNA levels, but slightly decreased A chain mRNA level compared to the control. The effect of progesterone on laminin chain-specific mRNA levels was further increased by co-injection of estradiol in a time-dependent manner. Progesterone-induced 81 and 82 chain mRNA transcription was inhibited by RU486, a synthetic anti-progesterone /anti-glucocorticoid. The present study demonstrates for the first time that steroids are able to regulate laminin gene expression in mouse uterine tissues, indicating that steroid-regulated laminin gene expression is involved in uterine growth and probably differentiation.