• Title/Summary/Keyword: bone mass

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Dexamethasone-induced muscle atrophy and bone loss in six genetically diverse collaborative cross founder strains demonstrates phenotypic variability by Rg3 treatment

  • Bao Ngoc Nguyen;Soyeon Hong;Sowoon Choi;Choong-Gu Lee;GyHye Yoo;Myungsuk Kim
    • Journal of Ginseng Research
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    • v.48 no.3
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    • pp.310-322
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    • 2024
  • Background: Osteosarcopenia is a common condition characterized by the loss of both bone and muscle mass, which can lead to an increased risk of fractures and disability in older adults. The study aimed to elucidate the response of various mouse strains to treatment with Rg3, one of the leading ginsenosides, on musculoskeletal traits and immune function, and their correlation. Methods: Six Collaborative Cross (CC) founder strains induced muscle atrophy and bone loss with dexamethasone (15 mg/kg) treatment for 1 month, and half of the mice for each strain were orally administered Rg3 (20 mg/kg). Different responses were observed depending on genetic background and Rg3 treatment. Results: Rg3 significantly increased grip strength, running performance, and expression of muscle and bone health-related genes in a two-way analysis of variance considering the genetic backgrounds and Rg3 treatment. Significant improvements in grip strength, running performance, bone area, and muscle mass, and the increased gene expression were observed in specific strains of PWK/PhJ. For traits related to muscle, bone, and immune functions, significant correlations between traits were confirmed following Rg3 administration compared with control mice. The phenotyping analysis was compiled into a public web resource called Rg3-OsteoSarco. Conclusion: This highlights the complex interplay between genetic determinants, pathogenesis of muscle atrophy and bone loss, and phytochemical bioactivity and the need to move away from single inbred mouse models to improve their translatability to genetically diverse humans. Rg3-OsteoSarco highlights the use of CC founder strains as a valuable tool in the field of personalized nutrition.

Soft Tissue Osteochondroma in the Foot - A case report - (족부 연부조직에 발생한 골연골종 - 1예 보고 -)

  • Yu, Sun-O;Shim, Chang-Goo;Kim, Churl-Ho;Joe, Myoung-Il;Moon, Jin-Woong
    • Journal of Korean Foot and Ankle Society
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    • v.5 no.1
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    • pp.82-85
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    • 2001
  • We experienced a case of soft tissue osteochondroma in the foot. The 43-years-old male was complained palpable mass and mild pain at the heel for 3 years. The plain radiograpy revealed a bony mass without connection of neighbor bone in the heel. The osteochondroma in the soft tissue is rare benign tumor. The mass was removed en bloc. The gross and histologic findings were consistent with osteochondroma. The differential diagnosis includes myositis ossificans, tumoral calcinosis, synovial chondromatosis, soft tissue osteochondroma, and true osteochondroma which arises from bone. The symptom was improved. After postoperative 1 year, recurrence was not.

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Soft-tissue osteoma of the temple

  • Roh, Si-Gyun;Kim, Yun-Seob;Kim, Jong-Lim;Shin, Jin-Yong;Lee, Nae-Ho
    • Archives of Craniofacial Surgery
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    • v.22 no.5
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    • pp.276-279
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    • 2021
  • A 65-year-old woman presented with a solid mass on the right temporal area. The mass had grown for over 2 years without any initiating event of trauma or inflammation. Before excision, the patient went through a computed tomography scan, revealing a calcified mass without bony connection. Under general anesthesia, an excisional biopsy was performed. Microscopic examination confirmed a diagnosis of soft tissue osteoma. Soft tissue osteoma is rare, especially in the head and neck region. Osteomas in the temporal region have not been reported yet. Due to its rarity, osteoma might be misdiagnosed as another soft tissue or bone origin tumor. Its treatment of choice is simple excision. In this review, we present an unusual clinical form of soft tissue osteoma.

Factors Associated with the Lumbar Spine and Femoral Neck Bone Mineral Density in Korean Elderly Women (한국 여성 노인의 대퇴경부 및 요추 골밀도 관련 요인)

  • Kim, Young-Ran;Lee, Tae-Yong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.10
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    • pp.4943-4952
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    • 2013
  • This study was conducted among Korean women over aged 60 who participated in Korea National Health and Nutrition Examination Survey (KNHANES) (the 2nd and 3rd year at the 4th survey, and the 1st year at the 5th survey). The purpose of the study was to figure out a relation between femoral neck and lumbar spine bone mineral density and anthropometry, life style, diet, fracture history, family history of osteoporosis, medical history, menstrual history and reproductive factor. To express the strength of the associations, percent differences were calculated from multiple linear regression models using the formula ${\beta}{\times}$(unit/mean BMD). Unit for continuous variables were chosen to approximate 1 standard deviation(SD). In women aged 60 or older, lean mass(B: 0.257) and fat mass(B: 0.237) greatly influenced bone density in the femoral neck and lumbar spine. Therefore it will be an effective way to prevent osteoporosis for elderly women by increasing lean mass and maintaining proper weight.

The Relationship between Serum Ferritin and Bone Mineral Density

  • Jo, Yoon-Kyung;Seok, Ju-Won;Kim, Jung-Ha
    • Biomedical Science Letters
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    • v.16 no.4
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    • pp.293-298
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    • 2010
  • Several risk factors for osteoporosis are known relatively well. Some nutrients are directly or indirectly needed for metabolic processes related to bone. Recently, an increased prevalence of osteoporosis has been reported in patients with hemochromatosis, an iron overload disease. Thus, the aim of this study was to find out if there was any relationship between serum ferritin and T-score of bone mineral density in healthy women. We recruited 1,101 subjects females aged between 39 and 85 years. We measured serum ferritin, glucose tolerance indices, lipid profiles, inflammatory indices, hormones, calcium, alkaline phosphatase. Also, anthropometric, blood pressure, and bone mineral density measurements were performed. T-score was negatively correlated with age (r=-0.425; P<0.01), systolic (r=-0.109; P<0.01) and diastolic (r=-0.093; P<0.01) pressure, follicular stimulation hormone (r=-0.190; P<0.01), alkaline phosphatase (r=-0.235; P<0.01), and serum ferritin (r=-0.090; P<0.05) and positively with body mass index (r=0.050; P=0.01), HDL-cholesterol (r=0.314; P<0.01), and estradiol (r=0.200; P<0.01). After adjustment for age, alkaline phosphatase, body mass index, HDL-cholesterol, estradiol, and follicular stimulation hormone, serum ferritin was independently inversely correlated with T-score (${\beta}$=-0.001; P<0.05). It is possible that an increase of serum ferritin in females be risk to osteoporosis.

Anti-osteoporotic Effects of Unripe Fructus of Rubus coreanus Miquel in Osteoblastic and Osteoclastic Cells

  • Kim, Hyo Jin;Sim, Dong-Soo;Sohn, Eun-Hwa
    • Korean Journal of Plant Resources
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    • v.27 no.6
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    • pp.593-600
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    • 2014
  • Osteoporosis is a progressive bone disease characterized by low bone mass which is caused by disturbance in the balance between the activities of osteoblasts and osteoclasts. Postmenopausal osteoporosis is one of the most common disorders in women after menopause, which is linked to an estrogen deficiency and characterized by an excessive loss of trabecular bone. Rubus coreanus has been used for their various pharmacological properties in Asia as a traditional medicine. To investigate the effect of unripe fruits of R. coreanus 30% ethanol extract (RCE) on osteoblast-like cells (MG63) differentiation, we examined the effects of RCE on in vitro osteoblastic differentiation markers, alkaline phosphatase (ALP) activity and receptor activator of nuclear factor ${\kappa}$-B ligand (RANKL) and osteoprotegerin (OPG) expression. The high concentration (50 and $100{\mu}g/mL$) of RCE markedly increased ALP activity, whereas decreased the RANKL/OPG. We also investigated the effect of RCE on M-CSF plus RANKL-induced differentiation of pre-osteoclast cells (RAW 264.7). RCE treatment remarkably inhibited M-CSF/RANKL-induced formation of osteoclast-like multinuclear cells from RAW 264.7 cells. Moreover, the inhibitory effect of RCE was reduced by selective estrogen receptor-${\alpha}$ antagonist. Our research suggests that suggested that unripe fruits of R. coreanus may act beneficial effects on bone mass by regulating both osteoblast and osteoclast.

Incidentally detected odontoma within a dentigerous cyst

  • Kim, Kwang Seog;Lee, Han Gyeol;Hwang, Jae Ha;Lee, Sam Yong
    • Archives of Craniofacial Surgery
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    • v.20 no.1
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    • pp.62-65
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    • 2019
  • Odontoma is an asymptomatic slow-growing odontogenic tumor. It is usually found by chance in the maxilla or mandible on radiography, or when it deforms the adjacent teeth. It is commonly found in patients who are 30 years of age or younger. We report our encounter with an odontoma within a dentigerous cyst found incidentally in a 56-year-old man. He presented with abnormal fullness in the right infraorbital area of the cheek. During the evaluation of the mass, we incidentally detected the odontogenic tumor within a dentigerous cyst in the patient's maxilla. Under general anesthesia, complete surgical drainage of the infraorbital cystic mass was performed. Enucleation of the odontogenic tumor and a bone grafting from the iliac bone were also performed. The final diagnosis was odontoma. After 2 years of follow-up, there was no sign of recurrence of the tumor. In case of odontogenic tumors, even in old patients, it is important to suspect an odontoma. When odontoma accompanies a dentigerous cyst, surgical excisional biopsy should be performed to rule out malignancy. In case of a large bony defect after enucleation, autogenous bone grafting is essential for reconstruction.

Effects of Dioscorea batatas on Estrogen-deficient Osteoporosis (Estrogen 결핍성(缺乏性) 골다공증(骨多孔症)에 미치는 산약(山藥) 추출물(抽出物)의 영향(影響))

  • Hwang Gwi-Seo;Lee Dae-Young
    • Journal of Society of Preventive Korean Medicine
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    • v.7 no.1
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    • pp.55-66
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    • 2003
  • Osteoporosis is characterized by bone loss and mobidity with osteoporotic fracture. This study was performed to evaluate the effect of on the bone mass and its related factors in estrogen-deficient animal model. The model rats of osteoporsis showed a significant decrease in bone density, bone ash density, calcium content of femur bone. At the 14th day after ovariectomy-surgery, rats were administered with DBE, extract of Dioscorea batatas, per orally, and continued for 10 weeks. And osteoporosis related parameters were determined to investigate the effect of DBE. Osteoporetic rats showed lower serum estrogen level, higher body weight than normal rats, and showed atrophy of uterine horns. DBE showed inhibitory effect on bone loss in osteoporetic condition, and reduced the increase of ALP activity and osteocalcin level in serum, and reduced the increase of OH-proline level in urine. But, DBE had no effect on cell proliferation and ALP activity in rat calvarial cell culture.

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Effect of Myricetin in Osteoclast Differentiation and Bone Resorption (파골세포 분화와 골 흡수에 myricetin의 효과)

  • Lee, An-Saeng;Jang, Sung-Jo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.24 no.1
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    • pp.74-79
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    • 2010
  • Osteoclasts are bone-resorbing giant cells that differentiate from hematopoietic cells of the monocyte/macrophages. Excessive osteoclast differentiation leads to gradual loss of bone mass causing fracture of the skeleton. The aim of this study was to develop a drug candidates for the treatment of osteoporosis. RANKL-induced osteoclast differentiation was dose-dependently inhibited by myricetin. Myricetin inhibited the expression of c-Fos, NFATc1, and TRAP in BMMs treated with RANKL. Myricetin disrupted the structure of actin ring and suppressed osteoclastic bone resorption. Also, myricetin induced apoptosis in mature osteoclasts. Myricetin inhibited the phosphorylation of ERK in mature osteoclasts treated with M-CSF. The activation of caspase-9 and caspase-3 was increased by myricetin treatment. Our results suggest that myricetin may be an effective agent to prevent bone diseases such as osteoporosis.

A Case of Chondrosarcoma Originating from the Hyoid Bone (설골에 발생한 연골육종 1례)

  • 윤상필;김상철;장진순;박시영
    • Korean Journal of Bronchoesophagology
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    • v.4 no.2
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    • pp.249-253
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    • 1998
  • Chondrosarcoma of bone commonly involve the pelvis, femur and shoulder girdle but the hyoid bone is a rare site for primary chondrosarcoma with approximately 10 cases having been reported in the literature. Radiologically it was well marginated and radiolucent mass with medullary bone destruction and central calcification. Wide surgical excision with or without radiotherapy is genera31y regarded as the treatment of choice for chondrosarcoma. Histopathology of chondrosarcoma was classified to clear cell chondrosarcoma, mucinous chondrosarcoma, dedifferentiated chondrosarcoma, and mesenchymal chondrosarcoma. We report a case of chondrosarcoma that originated from the right greater cornu of the hyoid bone, which underwent excision of the tumor with hemihyoidectomy and postoperative radiotherapy was performed.

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