• Title/Summary/Keyword: Estrogen deficiency

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Osteosarcopenic Obesity in Elderly: The Cascade of Bone, Muscle, and Fat in Inflammatory Process

  • Du, Yang;Oh, Chorong;No, Jae-kyung
    • Culinary science and hospitality research
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    • v.23 no.6
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    • pp.173-183
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    • 2017
  • Conditions related to body composition and aging, such as osteopenic obesity, sarcopenia/ sarcopenic obesity, and the newly termed osteosarcopenic obesity(triad of bone, muscle and adipose tissue impairment), are beginning to gain recognition. Currently, it has begun to attract the attention of scholars from all over the world, however, for this disease, it still needs a more clear understanding and perception. Therefore, this article considered the osteoporosis, muscle depression, and obesity, these diseases as a gate to study the relationship among muscle, bone, and fat. In addition, in the aging process, the formation of IGF-cortisol, testosterone, and estrogen is sensitive. These hormones can not only absorb muscle protein metabolism, but also affect alienation. The decrease in IGF-cortisol in the elderly resulted in increased visceral fat, decreased muscle mass and bone mineral density, and then affected decreased skeletal muscle atrophy and decreased quality. The reduction of skeletal muscle quality and strength and increase body fat affected the adipose tissue to produce inflammatory cytokines, thereby reduced skeletal muscle, promoted cardiovascular disease, metabolic syndrome and insulin resistance in chronic diseases. Almost all chronic inflammatory diseases were associated with bone, muscle and fat. These mechanisms were complex and interrelated. Inflammation reduces bone formation, increases fat and reduces muscle mass. And thus not only had a significant impact on the motor system, but also made the incidence increase of fracture, osteoporosis, fragile syndrome, fall, osteomalacia and other bone disease. This article aimed to start from the interaction between the muscles and bones of the elderly, extended to obesity, muscle deficiency, osteoporosis and other diseases, finally, from a nutritional point of view, to discuss how to treat osteoporosis obesity.

Effect of Singled and Mixed Pomegranate on Postmenopausal Symptoms in Overiectomized Rats (난소 절제술을 실시한 암컷 쥐에서 석류 단일과 석류 복합 시료의 갱년기 증상 개선 효과)

  • Lee, Yong-Hyuk;Hyun, Sun-Hee;Choung, Se-Young
    • YAKHAK HOEJI
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    • v.50 no.3
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    • pp.177-183
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    • 2006
  • Women's aging made a functional decline at ovary, This functional problem causes estrogen deficiency and many disorders, such as, sexual dysfunction, obesity, osteoporosis, urinary incontinence, skin and all body's aging, etc. We determined the ameliorative effects of some herbal extracts mixture on postmenopausal symptoms in ovariectomized Sprague Dawley rats. Nine-weeks-old female rats were ovariectomized and treated with singled pomegranate extracts (0.40, 1.20 g/kg/day) and mixed pomegranate extracts (1.08, 3.24g/kg/day) for 8 weeks. Oral administration of pomegranate extracts for 8 weeks were increased serum estradiol level and improved the serum osteocalcin, ALP activity and bone specific ALP level. And pomegranate extracts were reduced body weight, adipose tissue. Uterus weight in treated group tended to improve. In addition, the concentrationl of triglyceride and total cholesterol were lower after 8 weeks. HDL-cholesterol levels improved with does-dependency in treated groups. Collagen level on skin and cartilage showed a slight increase at treatment for 8 weeks. $^{\infty}These$ results showed that both of singular extract treatments and extracts mixture treatments were effective on general postmenopausal symptoms at overiectomized rats, and especially, the mixture treatments were more effective than singular treatment. $^{\infty}In$ conclusion, these herbal extracts' mixture showed improvement effect in general factors related with postmenopausal disorders.

Effect of Ethanol Extract of Safflower Seed on Bone Loss in Ovariectomized Rat

  • Cho, Sung-Hee;Choi, Sang-Won;Choi, Young-Sun;Kim, Hee-Jung;Park, Youn-Hee;Bae, Yong-Chul;Lee, Won-Jung
    • Food Science and Biotechnology
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    • v.16 no.3
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    • pp.392-397
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    • 2007
  • We investigated whether ethanol extracts of the safflower seeds containing phenolic compounds were responsible for the bone-protecting effects. Crude ethanol extract (CEE) of the safflower seeds was fed for 4 weeks at the level of 1% in diet to female Sprague-Dawley rats that had been subjected to bilateral ovariectomy (OVX). The CEE effects (OVX+CEE) were evaluated by comparing results obtained from OVX, Sham, and OVX injected with $17{\beta}$-estradiol ($OVX+E_2$) groups. OVX resulted in a dramatic reduction in the trabecular bone mass of the proximal tibia (approximately 40% of the Sham group) and an increase in fat deposition in bone marrow. In $OVX+E_2$ group, the bone loss was completely prevented as well as marrow adiposity. In OVX+CEE group, approximately 80% of the bone mass was maintained compared with Sham group and fat deposition in the bone marrow was prevented. Meanwhile, the partially purified ethanol extract containing the phenolic compounds stimulated proliferation of the ROS 17/2.8 osteoblast-like cells in a dose-dependent manner, as potently as positive controls of $E_2$ and genistein. The present data demonstrate that the ethanol extracts of safflower seeds reduced bone loss caused by estrogen deficiency. The bone-protecting effect of safflower seeds seems to be mediated, at least partly, by the stimulating effect of the phenolic compounds on the growth of osteoblasts.

The Effects of Partial Vibration on Tibia of Osteoporosis Induced Rat (골다공증이 유발된 쥐 정강이뼈에 적용한 부분 진동자극 효과)

  • Park, Ji-Hyung;Seo, Dong-Hyun;Jung, Young-Jin;Ko, Chang-Yong;Kim, Han-Sung
    • Journal of the Korean Society for Precision Engineering
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    • v.29 no.5
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    • pp.578-583
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    • 2012
  • The pharmacological therapies and whole body vibration as non-pharmacological therapies were known to have adverse side effects. Therefore, partial stimulation was suggested and its effects were evaluated. This study aimed to evaluate the site-specific effects of partial stimulator for treatment of osteoporosis induced by estrogen deficiency. Sixteen virginal Sprague-Dawley rats (12 weeks old) were divided into 2 groups(no stimulation, stimulation groups). All rats were ovariectomised to induce osteoporosis. After 3 weeks of operation, the right tibiae in rats of stimulation group (frequency: 10Hz, cycle: 1500, strain on bone surface: $2000{\mu}{\varepsilon}$) were stimulated perpendicularly at right tibia by using partial stimulator for 6 weeks (3days/week). The right tibiae in rats were scanned, before stimulation (0 week) and at 6 weeks after stimulation by using in-vivo micro computed tomography. For investigation of changes in morphological characteristics, structural parameters were measured and calculated. At 6 weeks the morphological characteristics (relative value) in stimulation group were significantly enhanced than those in no stimulation group (p<0.05). In this study, we find that after 6 weeks of partial stimulation, the morphological characteristics of tibia trabecular bone were enhanced. Thus, we concluded that partial stimulation could be used to treat osteoporosis.

Relationship between reactive oxygen species and autophagy in dormant mouse blastocysts during delayed implantation

  • Shin, Hyejin;Choi, Soyoung;Lim, Hyunjung Jade
    • Clinical and Experimental Reproductive Medicine
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    • v.41 no.3
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    • pp.125-131
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    • 2014
  • Objective: Under estrogen deficiency, blastocysts cannot initiate implantation and enter dormancy. Dormant blastocysts live longer in utero than normal blastocysts, and autophagy has been suggested as a mechanism underlying the sustained survival of dormant blastocysts during delayed implantation. Autophagy is a cellular degradation pathway and a central component of the integrated stress response. Reactive oxygen species (ROS) are produced within cells during normal metabolism, but their levels increase dramatically under stressful conditions. We investigated whether heightened autophagy in dormant blastocysts is associated with the increased oxidative stress under the unfavorable condition of delayed implantation. Methods: To visualize ROS production, day 8 (short-term dormancy) and day 20 (long-term dormancy) dormant blastocysts were loaded with $1-{\mu}M$ 5-(and-6)-chloromethyl-2', 7'-dichlorodihydrofluorescein diacetate, acetyl ester (CM-$H_2DCFDA$). To block autophagic activation, 3-methyladenine (3-MA) and wortmannin were used in vivo and in vitro, respectively. Results: We observed that ROS production was not significantly affected by the status of dormancy; in other words, both dormant and activated blastocysts showed high levels of ROS. However, ROS production was higher in the dormant blastocysts of the long-term dormancy group than in those of the short-term group. The addition of wortmannin to dormant blastocysts in vitro and 3-MA injection in vivo significantly increased ROS production in the short-term dormant blastocysts. In the long-term dormant blastocysts, ROS levels were not significantly affected by the treatment of the autophagy inhibitor. Conclusion: During delayed implantation, heightened autophagy in dormant blastocysts may be operative as a potential mechanism to reduce oxidative stress. Further, ROS may be one of the potential causes of compromised developmental competence of long-term dormant blastocysts after implantation.

Review on the Correlation between Bone Mass, Skinfold Thickness and the Volume of Urine collagen Peptide in Postmenopausal Women (폐경 후 여성의 골량과 피부두겹두께 및 뇨 콜라겐펩타이드 양의 관련성에 대한 고찰)

  • Park, Mi-Jung
    • Journal of Korean Biological Nursing Science
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    • v.3 no.2
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    • pp.91-103
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    • 2001
  • The bone is composed of the bone matrix of collagen and hydroxyapatite, the mixture of calcium and phosphours. The bone tissue is considered to the special connective tissue that possesses extracellular matrix made by collagen fiber deposited with mineral complex. In order to maintain bone mass measured by the sum of bone matrix and hydroxyapatite, bone resorption by osteoclast during lifetime and bone remodeling to form bone by osteoblast in its resorption region repeat continuously. The osteoblast has a mesodermic fetal origin like fibroblast for the formation of form tissues. Two cells express identical genes and synthesize the identical collagen type I as the major component of the formation of bone matrix and skin. Therefore, it is considered that the decrease of skinfold thickness and the decrease of bone mass related to the age, the change of two tissues composed of collagen type I is caused by the same genetic mechanism. The decrease of bone mass is caused by the change of the amount and structure of bone matrix by several factors and the amount of minerals deposited on bone matrix. Especially, in case of female, the deficiency of estrogen by menopause makes these changes rapidly increased. The decrease of bone mass and skinfold thickness is due to the decrease of the amount of collagen and its structural change the common component of bone tissue and skin tissue. Therefore, the relationship of the amount of cross-linked peptide N-telopeptide, collagen metabolite which excretes as urine. Based upon the proved results about the significant relationship of bone mass, the amount of bone collagen, the amount of skin collagen and skinfold thickness, the bone mass may be expected through a facile determination of skinfold thickness.

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A Study about the Mechanism of $Ca^{2+}$ and Pi Homeostasis by Estradiol 17$\beta$ in Proximal Tubule Cells in the Osteoporosis

  • Han Ho-jae;Park Soo-Hyun
    • Biomedical Science Letters
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    • v.10 no.4
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    • pp.375-383
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    • 2004
  • It has been reported that osteoporosis induced by the deficiency of estrogens in menopause is associated with the unbalance of Ca/sup 2+/ and Pi levels. Proximal tubule is very important organ to regualte Ca/sup 2+/ and Pi level in the body. However, the effect of estrogens on Ca/sup 2+/ and Pi regulation was not elucidated. Thus, we examined the effect of 17-β estradiol (E₂) on Ca/sup 2+/ and Pi uptake in the primary cultured rabbit renal proxiaml tubule cells. In the present study, E₂(> 10/sup -9/M) decreases Ca/sup 2+/uptake and stimulates Pi uptake over 3 days. E₂-induced decrease of Ca/sup 2+/ uptake and stimulation of Pi uptake were blocked by actinomycin D (a gene transcription inhibitor), cycloheximide (a protein synthesis inhibitor). tamoxifen, and progesterone (estrogen receptor antagonists). E₂-induced decrease of Ca/sup 2+/ uptake and stimulation of Pi uptake were blocked by SQ22536 (an adenylate cyclase inhibitor), Rp-cAMP (a cAMP antagonist), and PKI (a protein kinase A inhibitor). Indeed, E₂ increased cAMP formation. In addition, E₂-induced decrease of Ca/sup 2+/ uptake and stimulation of Pi uptake were blocked by staurosporine, H-7, and bisindolylmaleimide I (protein kinase C inhibitors) and E₂ translocated PKC from cytoslic fraction to membrane fraction. In conclusion, E₂ decreased Ca/sup 2+/ uptake and stimulated Pi uptake via cAMP and PKC pathway in the PTCs.

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Physical Discomforts and Sexual Life Pattern of Women with Hysterectomy (자궁절제술 후 신체적 불편감과 성생활 양상)

  • Ahn, Young-Lan;Park, Young-Sook
    • Women's Health Nursing
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    • v.6 no.2
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    • pp.218-233
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    • 2000
  • The purposes of this study were to investigate the physical discomforts and sexual life pattern and to identify the relation between the physical discomforts and the satisfaction of sexual life in women with hysterectomy. The subject were 301 women who lived with their spouses from 3 months to 2 years after hysterectomy in S. University Hospital. The data were collected using a self-reported questionnaire by mail, which composed of 25 items of physical discomforts, restarting time and frequency of sexual intercourse, and 10 items of sexual satisfaction, The results were as follows: 1) The mean score of physical discomforts was 13.22 and range of score was 0-45. 1.7% of 301 women had no physical discomforts and 12.0% of them complained of severe physical discomforts such as fatigue, lumbago and pain of extremities. 2) The women with hysterectomy complained of fatigue(76.1%), lumbago(68.8%), pain of extremities(63.5%), weight gain(55.5%), vaginal dryness(50.8%) and symptom of estrogen deficiency such as perspiration (47.5%), flush(41.2%) and palpitation (38.5%). As unusual symptom, numbness of thigh (20.3%) and acne(16.3%) were identified. 3) There was no significant difference between the degree of physical discomforts and the laps of time after hysterectomy. But the score of physical discomforts was lower in women with vaginal hysterectomy than in women with abdominal hysterectomy. 4) The mean score of sexual satisfaction was 33.11 and range of score was 10-50. There was no significant difference between the degree of sexual satisfaction and the lapse of time after hysterectomy. 83.8% of women had not change of sexual life satisfaction after hysterectomy. The women restarted sexual intercourse in average 2.57 months after hysterectomy. 5) There was a negative correlation between the physical discomforts and the sexual satisfaction. In conclusion, nurses should make the discharge educational program of the physical discomforts and the sexual pattern for women with hysterectomy in hospital.

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The Effect of Dietary Calcium Level on Biochemical Variables of Bone Metabolism in Ovariectomized Female Rats (식이 칼슘량이 난소 절제한 흰쥐에서 골대사 지료에 미치는 영향)

  • 최미자
    • Journal of the East Asian Society of Dietary Life
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    • v.6 no.3
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    • pp.295-305
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    • 1996
  • This study was done to evaluate the effectiveness of dietary calcium level(a diet which met 100% or twice the calcium level in AIN-76 diet) on preventing bone loss in ovariectomized rats. Forty female Sprauge-Dawley rats(body weight 200$\pm$5g) were divided into two groups. One group were ovariectomized(Ovx) while the others received sham operation(Sham). Thereafter, each rat group was further divided into normal calcium diet(NCD, 0.52%) and high calcium diet(HCD, 1.04%) sub-groups. All rats were fed on experimental diet and deionized water ad libitum for 8 weeks. Urinary pyridinoline & creatinine and serum estradiol, luteinizing hormone, calcium, phosphate, total protein, albumin, alkaline phosphatase and osteocalcin were determined. There were no significant differences in serum calcium. total protein and albumin in the two groups(Ovx vs Sham) of rats. Ovariectomized rats had significantly lower estradiol than sham operated rats. There was a highly significant correlation between total bone mineral density(TBMD) and overall level of esteradiol(r=0.59, p<0.05). Total bone mineral density did not correlate significantly with ALP or osteocalcin, although a negative trend was evident. However, the rats fed high calcium diet had a lower crosslinks value and osteocalcine than the rats fed normal calcium diet. An increased rate of bone turnover is usually associated with a decrease in bone mass bexause bone formation at each remodeling site is never as great as resorption. Ovariectomized rats fed high calcium diet had a lower crosslink value and osteocalcin; it means high cacium diet decreased bone turnover rate. The findings from the present study demonstrated that bone loss due to ovarian hormonal deficiency can be partially prevented by a high calcium diet. Futhermore, these findings support the strategy of the use of a high calcium diet in the prevention of estrogen depletion bone loss (postmenopausal osteoporosis).

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The Blood Chemical Study of the Oral administration of Guirokyisun-Hwan on the Osteoporosis Induced by Ovariectomy in the Rats (구록이선환(龜鹿二仙丸)의 경구투여(經口投與)가 난소적출(卵巢摘出)로 유발(誘發)된 백서(白鼠)의 골다공증(骨多孔症)에 미치는 혈액화학적(血液化學的) 연구(硏究))

  • Kim, Han-Kyun;Kim, Sang-Chan
    • Herbal Formula Science
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    • v.9 no.1
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    • pp.251-271
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    • 2001
  • In order to investigate the effect of the oral administration of Guirokyisun-Hwan on the estrogen-deficiency osteoporosis induced by ovariectomy in the rats, serum osteocalcin, estradiol, progesterone, follicular-stimulating hormone (FSH), calcium (Ca) and phosphorous (P) levels were monitored. And body weight changes were also monitored throughout whole experimental periods. The results were as follows : 1. Body weight of Control and Treatment group was significantly increased from 6 weeks after ovariectomy but after 2 days of drug administration, body weight of Treatment group were significantly (p<0.01 or 0.05) decreased compared with those of Control group. 2. Serum osteocalcin levels were significantly (p<0.01) increased in control groups compared with those of Sham group but significantly (p<0.01) decreased in the Treatment group. 3. Serum estradiol levels were significantly (p<0.01) decreased in control groups compared with those of Sham group but significantly (p<0.01) increased in the Treatment group. 4. Serum progesterone levels were significantly (p<0.01) decreased in control groups compared with those of Sham group but significantly (p<0.01) decreased in the Treatment groups. 5. Serum FSH levels were significantly (p<0.01) increased in control groups compared with those of Sham group but significantly (p<0.05) decreased in the Treatment group. 6. Serum Ca levels were significantly (p<0.01) decreased in control groups compared with those of Sham group but significantly (p<0.01) increased in the Treatment group. 7. Serum P levels were significantly (p<0.01) increased in control groups compared with those of Sham group and Treatment group. No significant was detected between Control group and Treatment group. According to these results, it is considered that the oral administration of Guirokyisun-Hwan have favorable effect on treatment and prevention of osteoporosis induced by ovariectomy in rats.

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