scholarly journals Effects of Lemon Beverage Containing Citric Acid with Calcium Supplementation on Bone Metabolism and Mineral Density in Postmenopausal Women: Double-Blind 11-Month Intervention Study

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Hiromi Ikeda ◽  
Tadayuki Iida ◽  
Masanori Hiramitsu ◽  
Takashi Inoue ◽  
Satomi Aoi ◽  
...  
Keyword(s):  
Citric Acid ◽  
Bone Resorption ◽  
Bone Formation ◽  
Bone Metabolism ◽  
Postmenopausal Women ◽  
Controlled Study ◽  
Control Group ◽  
Tartrate Resistant Acid Phosphatase ◽  
Mineral Density ◽  
Double Blind

A critical factor for preventing osteoporosis after menopause is attenuation of the accelerated turnover rate of bone metabolism. The present randomized controlled study was conducted to clarify the effects of a lemon beverage with calcium (Ca) supplementation that makes use of the chelating action of citric acid. Comprehensive evaluations of bone were performed by assessments of bone mineral density (BMD) and biomarkers related to bone turnover. Seventy-nine postmenopausal women were enrolled and asked to participate in an 11-month continuous intake of the test beverages. The subjects were divided into three groups: those who consumed a lemon beverage containing citric acid with Ca supplementation (LECA group), those who consumed a lemon beverage containing citric acid without Ca supplementation (LE group), and those who consumed no test beverage (control group). Using a double-blind protocol, subjects in the LECA and LE groups consumed one bottle containing 290 mL of the test beverage each day. The ratio of change in BMD after 11 months was significantly higher in the LECA group as compared to the control and LE groups. The LECA group also showed significant decreases in concentrations of tartrate-resistant acid phosphatase 5b (TRACP-5b), a bone resorption marker, and bone alkaline phosphatase (BAP) as compared to the other groups, as well as a significant decrease in concentration of osteocalcin (OC), a bone formation marker, as compared to the LE group. Based on our findings, we speculated that bone resorption and bone formation in postmenopausal women might be suppressed along with an increase in Ca resorption caused by chelation of citric acid in association with continuous ingestion of a Ca-supplemented lemon beverage containing citric acid, resulting in suppression of high bone metabolic turnover. In addition, the results provide information regarding BMD maintenance in the bones of the trunk, including the lumbar spine and proximal femur.

scholarly journals Effect of a Calcium-Enriched Lemon Beverage on Bone Metabolism and Bone Mineral Density in Postmenopausal Women: A Double-Blind, 11-Month, Intervention Study

2020 ◽  
Author(s):  
Hiromi Ikeda ◽  
Tadayuki Iida ◽  
Masanori Hiramitsu ◽  
Takashi Inoue ◽  
Satomi Aoi ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Resorption ◽  
Bone Metabolism ◽  
Postmenopausal Women ◽  
Bone Mineral ◽  
Medical Attention ◽  
Controlled Study ◽  
Mineral Density ◽  
Investigational Product ◽  
Regular Consumption

Abstract Background Key approaches to preventing the onset of osteoporosis are to maximize peak bone mass (PBM) in early adulthood and to minimize the inevitable loss of bone mineral density (BMD) after menopause. Consequently, osteoporosis attracts a great deal of social as well as medical attention in Japan, a country experiencing population aging. Methods The present randomized, controlled study aimed to elucidate how bone metabolism and bone mineral density (BMD) are affected by the consumption of a lemon juice-containing, calcium-enriched beverage. The effectiveness of this investigational product was evaluated in 79 postmenopausal women. The subjects were assigned to three groups. The first two groups received calcium-supplemented (LECA group) and unsupplemented lemon (LE group) beverages, respectively. The third group (control) received no intervention. The LECA and LE groups consumed one bottle (290 ml) of the appropriate investigational product every day for 11 consecutive months. Results The results showed that the regular consumption of this lemon beverage promoted Ca absorption through the chelating function of citric acid, attenuating bone resorption. The results also suggest that the suppression of bone resorption inhibits bone formation mediated by the differentiation and activity of osteoblasts and leads to the prevention of high-turnover bone metabolism. Conclusion This hypothesis is further supported by the novel finding that the regular consumption of the lemon beverage increases the BMD of both the lumbar spine and femur. We believe that the Ca-supplemented lemon beverage used in the present study will be instrumental in developing effective strategies for the prevention of osteoporosis.

scholarly journals Bone Metabolism Markers in Sportswomen with Menstrual Cycle Dysfunctions

2011 ◽  
Vol 30 (2) ◽  
pp. 135-140 ◽  
Author(s):  
Nenad Ponorac ◽  
Nela Rašeta ◽  
Dragan Radovanović ◽  
Amela Matavulj ◽  
Jelena Popadić-Gaćeša
Keyword(s):  
Menstrual Cycle ◽  
Bone Resorption ◽  
Bone Formation ◽  
Bone Metabolism ◽  
Control Group ◽  
Primary Amenorrhea ◽  
Bone Resorption Marker ◽  
Mineral Density ◽  
Bone Metabolism Markers ◽  
Significant Difference

Bone Metabolism Markers in Sportswomen with Menstrual Cycle DysfunctionsIt is a well known fact that sportswomen with irregular menstrual cycle are exposed to the risk of diminished bone mineral density, and consequentially osteoporosis may appear. Monitoring of the levels of biochemical markers of bone metabolism enables understanding of the dynamic changes during the bone remodeling process. The objectives of the conducted research were to determine the prevalence of menstrual dysfunctions in a sports-women sample and a control group, and also to determine the levels of bone metabolism markers in groups of women with menstrual dysfunctions. The women (n=117) were separated into two groups, the experimental group (S) (n=84) comprised of three subgroups of sports women (34 women who play ball game sports, 27 athletes and 23 sport dancers) and the control group (C) (n=34). To establish the menstrual profile and dysfunction of the menstrual cycle, we used a very detailed questionnaire. The level of mid-fragment osteocalcin (N-MID osteocalcin) as a marker of bone formation was deter mined, as well as β-Cross Laps (β-CTx-bone resorption marker) via the electro luminescent immunochemistry method on an Elecsys 1010 automated machine. Primary amenorrhea was found in 7 (8.33%) and oligomenorrhea in 11 (13.09%) sportswomen, which was statistically a much higher incidence (p<0.05) than in the control group (0/34). Values of bone metabolism markers showed a statistically significant difference in the level of the bone resorption marker β-CrossLaps between the groups of amenorrheic and oligomenorrheic sportswomen in comparison to the eumenorrheic women, both sportswomen and those in the control group. Accelerated resorption was accompanied with accelerated bone formation. Menstrual dysfunctions were statistically more present in the sports-women group than in the control group and were accompanied with accelerated bone metabolism from the point of view of the increase of bone metabolism markers level.

Changes in bone metabolism associated with exposure to industrial vibration

2020 ◽  
pp. 766-766
Author(s):  
A. V. Sukhova ◽  
E. N. Kryuchkova
Keyword(s):  
Bone Mineral Density ◽  
Alkaline Phosphatase ◽  
Bone Resorption ◽  
Bone Formation ◽  
Bone Metabolism ◽  
Biochemical Markers ◽  
Mineral Density ◽  
Local Vibration ◽  
Markers Of Bone Formation

The influence of general and local vibration on bone remodeling processes is investigated. The interrelations between the long - term exposure of industrial vibration and indicators of bone mineral density (T-and Z-criteria), biochemical markers of bone formation (osteocalcin, alkaline phosphatase) and bone resorption (ionized calcium, calcium/creatinine) were established.

The changes in bone turnover markers of female systemic lupus erythematousus patients without glucocorticoid

Lupus ◽  
2021 ◽  
Vol 30 (6) ◽  
pp. 965-971
Author(s):  
Wang Tianle ◽  
Zhang Yingying ◽  
Hong Baojian ◽  
Gu Juanfang ◽  
Wang Hongzhi ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Bone Formation ◽  
Bone Turnover ◽  
Bone Metabolism ◽  
Bone Turnover Markers ◽  
Control Group ◽  
Bone Resorption Marker ◽  
Amino Terminal ◽  
Normal People ◽  
Turnover Markers

Objectives SLE is a chronic autoimmune disease, which can affect the level of bone metabolism and increase the risk of osteoporosis and fracture. The purpose of this research is to study the effect of SLE on bone turnover markers without the influence of glucocorticoids. Methods A total of 865 female subjects were recruited from Zhejiang Provincial People’s Hospital and the First Hospital of Jiaxing, including 391 SLE patients without the influence of glucocorticoids and 474 non-SLE people. We detected Bone turnover markers including amino-terminal propeptide of type 1 procollagen (P1NP), C-terminal turnover of β - I collagen (β-CTX), N-terminal midfragment of osteocalcin (NMID) and 25(OH)D, and analyzed the difference in Bone turnover markers between the SLE group and the control group, as well as the influence of age and season on bone metabolism in female SLE patients. Results In the SLE group, the average age was 43.93±13.95 years old. In the control group, the average age was 44.84±11.42 years old. There was no difference between the two groups (t = 1.03, P = 0.30). P1NP, NMID and 25(OH)D in the SLE group were significantly lower than those in the control group (Z = 8.44, p < 0.001; Z = 14.41, p < 0.001; Z = 2.19, p = 0.029), and β-CTX in the SLE group was significantly higher than that in the control group (Z = 2.61, p = 0.009). In addition, the levers of β-CTX, NMID, P1NP and 25(OH)D in older SLE female patients were statistically significantly higher than those in younger (ρ = 0.104, p = 0.041; ρ = 0.223, p < 0.001; ρ = 0.105, p = 0.038; ρ = 0.289, p < 0.001). Moreover, β-CTX reached a high value in summer and PINP reached a low value in winter. Conclusion The bone formation markers of female SLE patients without glucocorticoid were lower than those of normal people and the bone resorption marker was higher than that of normal people. The 25 (OH) D of female SLE patients without glucocorticoid was lower than that of normal people. The risk of osteoporosis and fracture may be higher in elderly women with SLE. The bone resorption level of female SLE patients is high in summer and the bone formation level is low in winter.

scholarly journals Effects of Tibolone on Markers of Bone Metabolic Activity in Postmenopausal Women

2012 ◽  
Vol 31 (2) ◽  
pp. 121-125
Author(s):  
Snežana Krejović ◽  
Aleksandar Živanović ◽  
Sandra Živanović ◽  
Rade Marković
Keyword(s):  
Bone Resorption ◽  
Bone Formation ◽  
Postmenopausal Women ◽  
Postmenopausal Osteoporosis ◽  
Metabolic Activity ◽  
Systemic Disease ◽  
Economic Problem ◽  
Control Group ◽  
Bone Mass Loss ◽  
Average Value

Effects of Tibolone on Markers of Bone Metabolic Activity in Postmenopausal WomenOsteoporosis, a systemic disease of the bones, is a serious health and socio-economic problem because of its consequences, i.e. broken bones. It is believed that 10% of the world's population suffers from osteoporosis and it affects mostly postmenopausal women (postmenopausal osteoporosis). Tibolone is a synthetic steroid that has estrogenic, androgenic, and progestagenic properties. It has been used primarily for the prevention of postmenopausal osteoporosis and treatment of climacteric symptoms. The research included a group of 40 postmenopausal women with osteopenia treated with tibolone. The control group included 40 postmenopausal women who were not taking any medication. Control group patients were older (54.5 ± 9.84) than the patients treated with tibolone (51.6 ± 6.22). Bone metabolic activity was evaluated using osteocalcin (N-MID osteocalcin) for bone formation and CTX I for bone resorption. Blood samples were taken before therapy was introduced and 3 months after its introduction. The average value of osteocalcin after three months of tibolone therapy was 26.32 ± 3.312 ng/mL compared to the average osteocalcin value prior to therapy of 29.6 ± 3.343 ng/mL. The average value of CTX I three months after tibolone therapy of 0.2870 ± 0.0783 ng/mL was lower compared to the average CTX I value before the therapy of 0.4539 ± 0.1144 ng/mL. Our results show the efficacy of tibolone in preventing bone loss, which was highly statistically significant. They also reveal its suppressive effects on bone formation and resorption, but these effects are statistically less significant. Tibolone significantly reduces the level of bone resorption in postmenopausal women with osteopenia. Its effects on bone formation are less expressed. The parameters of bone metabolic activity are a very useful diagnostic means in the evaluation of tibolone effects on bone metabolic activity and in the prognosis of bone mass loss.

scholarly journals Bone Density, Turnover, and Estimated Strength in Postmenopausal Women Treated With Odanacatib: A Randomized Trial

2013 ◽  
Vol 98 (2) ◽  
pp. 571-580 ◽  
Author(s):  
Kim Brixen ◽  
Roland Chapurlat ◽  
Angela M. Cheung ◽  
Tony M. Keaveny ◽  
Thomas Fuerst ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Bone Resorption ◽  
Bone Formation ◽  
Postmenopausal Women ◽  
Bone Strength ◽  
Bone Mineral ◽  
Bone Resorption Marker ◽  
Mineral Density ◽  
Volumetric Bmd ◽  
The Impact

Abstract Context: Odanacatib, a cathepsin K inhibitor, increases spine and hip areal bone mineral density (BMD) in postmenopausal women with low BMD and cortical thickness in ovariectomized monkeys. Objective: The objective of the study was to examine the impact of odanacatib on the trabecular and cortical bone compartments and estimated strength at the hip and spine. Design: This was a randomized, double-blind, 2-year trial. Setting: The study was conducted at a private or institutional practice. Participants: Participants included 214 postmenopausal women with low areal BMD. Intervention: The intervention included odanacatib 50 mg or placebo weekly. Main Outcome Measures: Changes in areal BMD by dual-energy x-ray absorptiometry (primary end point, 1 year areal BMD change at lumbar spine), bone turnover markers, volumetric BMD by quantitative computed tomography (QCT), and bone strength estimated by finite element analysis were measured. Results: Year 1 lumbar spine areal BMD percent change from baseline was 3.5% greater with odanacatib than placebo (P &lt; .001). Bone-resorption marker C-telopeptide of type 1 collagen was significantly lower with odanacatib vs placebo at 6 months and 2 years (P &lt; .001). Bone-formation marker procollagen I N-terminal peptide initially decreased with odanacatib but by 2 years did not differ from placebo. After 6 months, odanacatib-treated women had greater increases in trabecular volumetric BMD and estimated compressive strength at the spine and integral and trabecular volumetric BMD and estimated strength at the hip (P &lt; .001). At the cortical envelope of the femoral neck, bone mineral content, thickness, volume, and cross-sectional area also increased from baseline with odanacatib vs placebo (P &lt; .001 at 24 months). Adverse experiences were similar between groups. Conclusions: Over 2 years, odanacatib decreased bone resorption, maintained bone formation, increased areal and volumetric BMD, and increased estimated bone strength at both the hip and spine.

scholarly journals The phytochemical plumbagin reciprocally modulates osteoblasts and osteoclasts

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Avinash M. Yadav ◽  
Manali M. Bagade ◽  
Soni Ghumnani ◽  
Sujatha Raman ◽  
Bhaskar Saha ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Bone Formation ◽  
Bone Metabolism ◽  
Biological Activities ◽  
Osteoclast Differentiation ◽  
Bioactive Compound ◽  
Oxygen Species ◽  
Hormonal Changes ◽  
Mineral Density ◽  
Osteoblast Activity

Abstract Bone metabolism is essential for maintaining bone mineral density and bone strength through a balance between bone formation and bone resorption. Bone formation is associated with osteoblast activity whereas bone resorption is linked to osteoclast differentiation. Osteoblast progenitors give rise to the formation of mature osteoblasts whereas monocytes are the precursors for multi-nucleated osteoclasts. Chronic inflammation, auto-inflammation, hormonal changes or adiposity have the potential to disturb the balance between bone formation and bone loss. Several plant-derived components are described to modulate bone metabolism and alleviate osteoporosis by enhancing bone formation and inhibiting bone resorption. The plant-derived naphthoquinone plumbagin is a bioactive compound that can be isolated from the roots of the Plumbago genus. It has been used as traditional medicine for treating infectious diseases, rheumatoid arthritis and dermatological diseases. Reportedly, plumbagin exerts its biological activities primarily through induction of reactive oxygen species and triggers osteoblast-mediated bone formation. It is plausible that plumbagin’s reciprocal actions – inhibiting or inducing death in osteoclasts but promoting survival or growth of osteoblasts – are a function of the synergy with bone-metabolizing hormones calcitonin, Parathormone and vitamin D. Herein, we develop a framework for plausible molecular modus operandi of plumbagin in bone metabolism.

scholarly journals 309 Effects of dietary supplying icariin on the bone metabolism and the laying performance in caged laying hens

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 11-11
Author(s):  
Jie Huang ◽  
Lei Zhang ◽  
Zhongxin Zhou
Keyword(s):  
Bone Mineral Density ◽  
Bone Metabolism ◽  
Bone Mineral ◽  
Laying Hens ◽  
Egg Quality ◽  
Control Group ◽  
Tartrate Resistant Acid Phosphatase ◽  
Mineral Density ◽  
Laying Performance ◽  
Serum Biochemical

Abstract Icariin, a flavonol glycoside, is one of major active ingredients of the traditional Chinese medicine Herba epimedii. Icariin has been reported to successfully treat the osteoporosis of the rat. However, effects of icariin on the osteoporosis in caged laying hens are still unkown. This study present the effects of dietary icariin supplementation on the laying performance, the egg quality and the bone metabolism in caged laying hens. A total of 216 Lohmann pink-shell laying hens of 54-week-old from a commercial farm in the Hubei province of China were randomly assigned to 3 treatment groups with 6 replications per group and 12 birds per replication. The control group was fed a corn-soybean meal basal diet, and the experimental groups were fed basal diets supplemented with 500 and 2000 mg/kg icariin for 90 d. Layer performance responses, egg quality parameters, the bone mineral density and serum biochemical indicators were measured at the end of the experiment. Results showed that feed/egg ratio decreased as the supplied icariin level increased. The laying rate and the average egg weight were increased compared to the control group. However, no significant effect was observed on the egg quality. The bone mineral density of the tibia was measured by the dual-energy X-ray absorptiometry, indicating that icariin can increase the bone mineral density. Serum biochemical analysis showed that icariin decreased the level of alkaline phosphatase, tartrate-resistant acid phosphatase, osteocalcin and calcitonin. Our observations provided evidences that dietary supplementation of icariin increased the bone mineral density and improved the laying performance, and icariin can be used for the prevention of the osteoporosis in caged laying hens.

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