• 제목/요약/키워드: Endocrine function

검색결과 194건 처리시간 0.025초

Relationship between Breast Cancer and Levels of Serum Thyroid Hormones and Antibodies: a Meta-analysis

  • Shi, Xin-Zhu;Jin, Xing;Xu, Peng;Shen, Hong-Mei
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권16호
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    • pp.6643-6647
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    • 2014
  • The breast and the thyroid are hormone responsive organs that are closely related with changes of endocrine function and glandular disease. An association between thyroid disorders and breast cancer (BC) risk has been suggested, although the results are inconclusive. The purpose of the present study was to summarize evidence supporting a relationship between BC and the level of thyroid hormones and antibodies. The MEDLINE and EMBASE electronic databases were searched for studies published between 2000 and 2014. The pooled effects were presented as weighted mean differences (WMD) with 95% confidence intervals (CI) using fixed or random effect models. We summarized the results of 8 cross-sectional studies with 4, 189 participants. The overall pooled results showed that the levels of $FT_3$ and $FT_4$ were significantly increased in patients with BC (WMD=1.592 pmol/l; 95% CI: 0.15-3.033 and WMD=0.461 ng/dl; 95% CI: 0.015-0.906; p=0.043). The TPOAb level in patients with BC was higher than that in the control group (WMD=81.4 IU/ml; 95% CI: 78.7-84.0; p=0.000). The overall pooled results of the TgAb with random effects analyses showed that the TgAb level was significantly increased in patients with BC (WMD=101.3 IU/ml; 95% CI: 48.7-153.9; p=0.000). The present results indicated that the serum levels of $FT_3$, TPOAb and TgAb are significantly higher in patients with breast cancer than in healthy controls.

인진쑥 추출물이 다이옥신계 TCDD (2,3,7,8-Tetrachlorodibenzo-p-dioxin)에 노출된 흰쥐의 간 기능 및 지질대사에 미치는 효과 (Effects of Artemisia capillaris extract on disorders of hepatic functions and lipid metabolism in rats treated with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD))

  • 이준호;장춘뢰;필수초;황석연
    • Journal of Nutrition and Health
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    • 제46권3호
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    • pp.207-217
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    • 2013
  • This study was conducted in order to investigate the effects of Artemisia capillaris (AC) extract on disorders of hepatic functions and lipid metabolism induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), an endocrine disrupter, using male rats (SD, five weeks old) for a period of three weeks. These 37 animals were divided into four groups. AC extract was added as 1.5% or 3% levels to basal diets, respectively. TCDD (40 ug/kg B.W) was administered by intraperitoneal injection into rats after a week from the beginning of the experiment. AC extract alleviated the increase of rat's relative liver weights induced by TCDD. Thymuses of all rats treated with TCDD were apparently shrunken by approximately 80%. Levels of white blood cells (WBC), red blood cells, hemoglobin, and hematocrits were significantly increased by treatment with TCDD, however, WBC tended to decrease by AC extract diets. In hepatic function, the elevation of glutamic oxalacetic transaminase activities by TCDD treatment was diminished by AC extract diets. Serum HDL-cholesterol levels were significantly elevated by AC extract diets. The apparent increase of triglyceride levels of rat livers induced by TCDD was significantly suppressed in the AC extract diet groups. Hepatic cytosolic catalase activities significantly decreased by treatment with TCDD showed a recovering trend by AC extract diets. In histochemical observation, the fat droplets and apoptosis of hepatocytes treated with TCDD were markedly alleviated by AC extract diets. These results indicated that AC could exert recovering effects on some disorders of hepatic functions, lipids metabolism, and antioxidant activities resulting from TCDD treatment.

Interaction Between Acid-Labile Subunit and Insulin-like Growth Factor Binding Protein 3 Expressed in Xenopus oocytes

  • Park, Kyung-Yi;Lee, Dong-Hee
    • 한국응용약물학회:학술대회논문집
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    • 한국응용약물학회 2001년도 추계학술대회 및 정기총회
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    • pp.99-99
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    • 2001
  • The acid-labile subunit (ALS) associates with insulin-like growth factor (IGF)-I or -II and IGF binding protein-3 (IGFBP-3) to form a 150-kD complex in the circulation. This complex is thought to regulate the serum IGFs by restricting them in the vascular system and promotes their endocrine actions. Little is known about how ALS binds to IGFBP3, which connects the IGFs to ALS. Xenopus oocyte was utilized to study the function of ALS in assembling IGFs into the ternary complexes. Xenopus oocyte was shown to correctly translate in vitro transcribed mRNAs of ALS and IGFBP3. IGFBP3 and ALS mRNAs were injected in mixture and their products were immunoprecipitated by antisera against ALS and IGFBP3. Contrary to the traditional reports that ALS interacts only with IGF-bound IGFBP3, this study shows that ALS is capable of forming a binary complex with IGFBP3 in the absence of IGF. When cross-linked by disuccinimidyl substrate, band representing ALS-IGFBP3 complex was evident on the PAGE. IGFBP3 movement was monitored according to the distribution between the hemispheres. Following a localized translation in the vegetal hemisphere, IGFBP3 was shown to remain in the vegetal half in the presence of ALS. Different from wild type IGFBP3, however, mutant IGFBP3 freely diffused into the animal half despite the presence of ALS. Taken together, this study suggests that ALS may play an important role in sequestering IGFBP3 polypeptides via the intermolecular aggregation. Studies using this heterologous model will lead to a better understanding of the IGFBP3 and ALS assembling into the ternary structure and circulating IGF system.

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Testosterone Regulates NUCB2 mRNA Expression in Male Mouse Hypothalamus and Pituitary Gland

  • Seon, Sojeong;Jeon, Daun;Kim, Heejeong;Chung, Yiwa;Choi, Narae;Yang, Hyunwon
    • 한국발생생물학회지:발생과생식
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    • 제21권1호
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    • pp.71-78
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    • 2017
  • Nesfatin-1/NUCB2 is known to take part in the control of the appetite and energy metabolism. Recently, many reports have shown nesfatin-1/NUCB2 expression and function in various organs. We previously demonstrated that nesfatin-1/NUCB2 expression level is higher in the pituitary gland compared to other organs and its expression is regulated by $17{\beta}-estradiol$ and progesterone secreted from the ovary. However, currently no data exist on the expression of nesfatin-1/NUCB2 and its regulation mechanism in the pituitary of male mouse. Therefore, we examined whether nesfatin-1/NUCB2 is expressed in the male mouse pituitary and if its expression is regulated by testosterone. As a result of PCR and western blotting, we found that a large amount of nesfatin-1/NUCB2 was expressed in the pituitary and hypothalamus. The NUCB2 mRNA expression level in the pituitary was decreased after castration, but not in the hypothalamus. In addition, its mRNA expression level in the pituitary was increased after testosterone treatment in the castrated mice, whereas, the expression level in the hypothalamus was significantly decreased after the treatment with testosterone. The in vitro experiment to elucidate the direct effect of testosterone on NUCB2 mRNA expression showed that NUCB2 mRNA expression was significantly decreased with testosterone in cultured hypothalamus tissue, but increased with testosterone in cultured pituitary gland. The present study demonstrated that nesfatin-1/NUCB2 was highly expressed in the male mouse pituitary and was regulated by testosterone. This data suggests that reproductive-endocrine regulation through hypothalamus-pituitary-testis axis may contribute to NUCB2 mRNA expression in the mouse hypothalamus and pituitary gland.

노닐페놀을 주사한 조피볼락의 간장 cytochrome P450과 EROD의 반응 (Responses of Cytochrome P450 and EROD Activity in Rockfish (Sebastes schlegeli) Administered Intraperitoneal Injection of 4-nonylphenol)

  • 전중균;이지선;손영창;심원준;정지현;홍경표;김병기;한창희
    • 환경생물
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    • 제22권1호
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    • pp.171-176
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    • 2004
  • 비이온성 계면활성제로 많이 쓰이는 알킬페놀류의 하나인 노닐페놀(nonylphenol)이 해산어류에게 미치는 영향을 조사하려고 주요 양식어종인 조피볼락에게 복강주사로 10 및 25 mg $kg^{-1}$을 1회 투여하였다. 한편 용제인 DMSO만을 주사한 sham구를 설정하여 비교하였다. 주사 후 7일간 간중량지수(hepatosomatic index)의 변화를 조사하였고, 또한 간장 미크로좀 중 대표적인 약물대사효소인 cytochrome P450 (CYP) 농도와 ethoxyresorufin deethylase (EROD) 활성의 변화도 측정하였다. 그 결과, 고농도(25 mg $kg^{-1}$) 주사구에서는 HSl가 감소하였는데, 이것은 NP가 간장에 독성이 있다는 것을 보여준다. 한편, 약물대사효소 중 CYP 농도는 유도되었지만 EROD 활성은 저해되는 경향을 보였다. 이번에 주사한 농도는 우리나라 연근해 해수 중의 NP 농도에 비해 매우 높은 수준이지만, 본 실험에서는 NP가 조피볼락에 게간장 독성을 보였고, 간장의 약물대사효소에도 영향을 미친다는 것을 확인할 수 있었다.

조식(調息)의 동서의학적(東西醫學的) 임상(臨床) 의의(意義) (Clinical Significant of Breathing in the oriental, western Medicine)

  • 박진성;박영재;박영배;허영
    • 대한한의진단학회지
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    • 제12권1호
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    • pp.63-79
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    • 2008
  • Background: The consequences of disordered breathing patterns are not only distressing to the patient but also expensive to our health care systems if they are not diagnosed and treated. So we performed this study to investigate clinical significants trough gigong, yoga and hyperventilation in oriental medicine and westen medicine Method: Voluntary control of respiration is one of the main methods of physical and mental training such as meditation, qigong meditation or Yoga. So, this study focuses on breathing in qigong and yoga. This study appreciates a role that a control of respiration has in physical, mental aspects and searches side-effects in qigong and yoga Conclusions: A control of respiration has a function that manages Jung(精), Qi(氣), Shin(神) in Oriental Medicine. It manages Autonomic Nerve system, Endocrine system and induces natural awareness. So Briging the body and mind work through a control of breathing. Breathing pattern disorder has Damum and Qiher pattern in Oriental Medicine pattern. This disease pattern concearnes ATP metabolism. Qiher is concearned with a mitochondria disorder and Damum is concearned with a products of lactate. we guess that Lactate analysis may be utilized as a diagonostic criteria of Breathing pattern disorder. After this, It needs a study that Lactate analysis is concearned with Breathing pattern disorder as Damum pattern. Result: A control of respiration is related not only breathing but also spiritual and physical state. Joo-hwa-ip-ma as Breathing pattern disorder is smiliar to hyperventilation. HVS is patternated Damum and Qi-Weakness pattern in oriental medicine. Lactate is an important complement that diagonates HVS and will be concearned with Damum.

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경막외 몰핀 단독 투여와 국소마취제 혼주가 술후 진통 효과에 미치는 영향 (The Effect of Low Dose Bupivacaine on Epidural Morphine Analgesia for Postoperative Pian)

  • 하한수;박영철;김해규;백승완;정규섭
    • The Korean Journal of Pain
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    • 제7권2호
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    • pp.188-192
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    • 1994
  • Recently, epidural morphine has been administrated to decrease patients' systemic stress responses such as: suffers, endocrine responses and impairment of pulmonary function, etc. Epidural morphine provided excellent analgesic effect, but incomplete sensory blockade as compared to epidural local anesthetics, which has sympathetic blockade effect and tachyphylaxis. Therefore, the authors surmised that low dose bupivacaine on low dose epidural morphine improved postoperative pain with greater sensory analgesia than epidural morphine alone. The effect of low dose bupivacaine on epidural morphine analgesia for postoperative pain was evaluated in seventy patients. They were physical status I-III by ASA classification. Patients were randomly divided into 2 groups and they were administrated morphine 2.5 mg only (group I), morphine 2.5 mg plus 0.125% bupivacaine (group II) through epidural catheter 1 hour before the end of the operation. During postoperative second days, their analgesic effects were evaluated by visual analogue scale (0-10). Side effects were also evaluated. The results were as follows, 1) On the day of the operation, VAS score showed significant differences between two groups (morphine group $3.20{\pm}0.16$, morphine plus bupivacaine group $2.77{\pm}0.08$; p < 0.05). 2) On the postoperative and second day, there were no statistical differences between the groups according to VAS score. 3) The incidence of pruritus, nausea, and vomiting were no differences in both groups. 4) None of the patients showed objective sedation or a low respiratory rate (< 10 bpm). We concluded that epidural administration of low dose bupivacaine on the epidural morphine analgesia was an effective method to decrease postoperative pain with little change in frequencies of side effects compared to epidural morphine alone.

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산양에 있어서 분만후 임신황체의 퇴행 (Regression of the Corpus Luteum of Pregnancy Following Parturition in Goats)

  • 변명대;함태수
    • 한국가축번식학회지
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    • 제15권3호
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    • pp.161-172
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    • 1991
  • This study was conducted to research the endocrine mechanisms of postpartum anestrus and determine if the morphology of the CL could be related to function in Korean native goats. At parturition 48 goats were assigned to a nonsuckled group and a suckled group. Serum concentrations of luteinizing hormone(LH), follicle stimulating hormone(FSH), prolactin(PRL), estradiol-17$\beta$(E2) and cortisol were measured at various times after parturitionin the goats. The corpora lutea of pregnancy were examined by a light microscope on the 6th hour and the first, 3rd, 10th, 11th, and 21st days after parturition. The results were summarized as follows : Mean serum LH concentrations were lower after parturition in all treatments and increased gradually with the intervals after parturition(P<0.01). These values did not differ between groups. The levels of serum FSH were lower after parturition and tended to increase gradually between 2 and 21 days. The levels of serum FSH are not significantly different between the groups of goats. Two days after kidding mean levels of serum PRL began to fall in nonsuckling goats but increased in suckling goats. During 3 weeks serum PRL concentrations were different between nonsuckling and suckling goats(P<0.01). Three days after parturition the levels of serum E2 decreased in all treatments. From parturition to day 21 serum E2 concentrations were greater in nonsuckling than in suckling goats(P<0.01). At the sixth hour after parturition the structure of the CL was well preserved. At days 1 and 3 the blood vessels were sparcely distributed, whereas, at days 1 and 3 the blood vessels were sparcely distributed, whereas, at days 10, 11 and 21 tortuous larger vessels with thick walls were observed on the luteal tissue. At days 1, 3, 10, 11 and 21 after parturition the CL of pregnancy showed degeneration and the proportion of tissue occupied by intercelluar substances increased at days 21 postpartum. In conclusion, the present study has shown that regression of the CL of pregnancy is accelerated in the period after parturition and effectively completed within three weeks postpartum.

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Subacute Oral Toxicity Study of Korean Red Ginseng Extract in Sprague-Dawley Rats

  • Park, Sang-Jin;Lim, Kwang-Hyun;Noh, Jeong-Ho;Jeong, Eun Ju;Kim, Yong-Soon;Han, Byung-Cheol;Lee, Seung-Ho;Moon, Kyoung-Sik
    • Toxicological Research
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    • 제29권4호
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    • pp.285-292
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    • 2013
  • Ginseng is a well-known traditional medicine used in Asian countries for several thousand years, and it is currently applied to medicine, cosmetics, and nutritional supplements due to its many healing and energygiving properties. It is well demonstrated that ginsenosides, the main ingredient of ginseng, produce a variety of pharmacological and therapeutic effects on central nerve system (CNS) disorders, cardiovascular disease, endocrine secretions, aging, and immune function. Korean red ginseng extract is a dietary supplement containing ginsenoside Rb1 and ginsenoside Rg1 extracted from Panax ginseng. While the pharmacokinetics and bioavailability of the extract have been well established, its toxicological properties remain obscure. Thus, four-week oral toxicity studies in rats were conducted to investigate whether Korean red ginseng extract could have a potential toxicity to humans. The test article was administered once daily by oral gavage to four groups of male and female Sprague-Dawley (SD) rats at dose levels of 0, 500, 1,000, and 2,000 mg/kg/day for four weeks. Neither deaths nor clinical symptoms were observed in any group during the experiment. Furthermore, no abnormalities in body weight, food consumption, ophthalmology, urinalysis, hematology, serum biochemistry, gross findings, organ weights, or histopathology were revealed related to the administration of the test article in either sex of any dosed group. Therefore, a target organ was not determined in this study, and the no observed adverse effect level (NOAEL) of Korean red ginseng extract was established to be 2,000 mg/kg/day.

Panax ginseng Improves Senile Testicular Function in Rats

  • Hwang, Seock-Yeon;Sohn, Sang-Hyun;Wee, Jae-Joon;Yang, Jin-Bae;Kyung, Jong-Soo;Kwak, Yi-Seong;Kim, Sung-Won;Kim, Si-Kwan
    • Journal of Ginseng Research
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    • 제34권4호
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    • pp.327-335
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    • 2010
  • We reported previously that the administration of Korean red ginseng water extract (KRG-WE) protected the guinea pig testis against damage induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (a potent endocrine disruptor). We also found that crude saponin from ginseng was the active ingredient responsible for this protection. Here, we examined the biological role of KRG-WE in an animal model of age-induced dysfunction of spermatogenesis. Twenty-four male Sprague-Dawley (six 2-month-old and eighteen 12-month-old) rats were used. The young and old control groups received only vehicle. The ginseng saponin (GS)- and KRG-WE-treated groups received GS (40 mg/kg body weight/day) and KRG-WE (200 mg/kg body weight/day), respectively, for 4 months. The number of cells, Sertoli cell index, Johnsen's score, and sex hormone levels decreased significantly with age. However, the administration of KRG-WE and GS markedly improved the number of germ cells, seminiferous tubular size, and Johnsen's score in the old rats. Ginseng produced a distinct testicular histological improvement in old rats. KRG-WE and GS elevated testosterone levels, while attenuating the aberrant increase in follicle stimulating hormone and luteinizing hormone levels. Sperm kinematics evaluated by a computer-assisted sperm analyzer demonstrated improvement in the percentage of motile sperm, progressive sperm motility, and curvilinear velocity associated with sperm quality, supporting the beneficial role of red ginseng in senile spermatogenesis. Overall, the total water extract had a more potent effect than the corresponding saponin fraction. In conclusion, Korean red ginseng rejuvenated age-induced testicular dysfunction. Additionally, the total water extract was more potent than the corresponding saponin fraction.