Searchable abstracts of presentations at key conferences on calcified tissues

ba0007p199 | (1) | ICCBH2019

Diversity of outcomes in randomised trials of interventions for children with osteogenesis imperfecta

McGee Richard , Wall Christie-Lee , Biggin Andrew , Pacey Verity , Poon Myra , Munns Craig

Objective: The potential for clinical trials to impact patient care may be limited if the outcomes reported vary by trial and lack direct relevance to patients. We aimed to systematically assess the scope and consistency of outcomes reported in randomised trials of interventions for children with osteogenesis imperfecta.Methods: We systematically searched for all published and unpublished randomised trials of interventions for children with osteogenesis ...

ba0004op12 | (1) | ICCBH2015

A non-invasive method for screening vitamin D insufficiency for adolescents using skin colourimetry

Lam Tsz Ping , Lee Wayne Y W , Cheung Franco T F , Tsang Echo K L , Wong Lyn L N , Lee Simon K M , Ng Bobby K W , Cheng Jack C Y

Introduction: Effective screening for vitamin D (Vit-D) insufficiency is desirable. Pigmentation of unexposed (constitutive) skin and exposed (facultative) skin can be measured with skin colourimetry to assess dermal capability in synthesizing Vit-D and degree of sunlight exposure respectively. This study aimed at evaluating whether skin colourimetry could be used to screen Vit-D insufficiency among adolescents.Methods: 240 healthy adolescents (mean age=...

ba0006oc8 | (1) | ICCBH2017

Effective therapeutic control of curve progression using calcium and vitamin D supplementation for adolescent idiopathic scoliosis – a randomized double-blinded placebo-controlled trial

Lam Tsz Ping , Yip Benjamin Hon Kei , Man Gene Chi Wai , Lee Wayne YW , Tam Elisa Man Shan , Lee Kwong Man , Yu Fiona Wai Ping , Ng Bobby Kin Wah , Cheng Jack Chun Yiu

Objectives: Adolescent Idiopathic Scoliosis (AIS) is associated with low bone mass. This study aimed at evaluating the therapeutic effect and its determinants of Ca+Vit-D supplementation in improving bone strength and preventing curve progression in AIS.Methods: This was a randomized double-blinded placebo-controlled trial recruiting AIS girls (11–14 years old, Tanner stage<IV) with femoral neck BMDZ-scores<0 and Cobb angle≥15°. 3...

ba0003pp117 | Cell biology: osteoblasts and bone formation | ECTS2014

EGF inhibits Wnt/β-catenin-induced osteoblast differentiation in a Smurf1-dependent manner

Kwon Arang , Boonanantanasarn Kanitsak , Lee Hye-Lim , Woo Kyung Mi , Ryoo Hyun-Mo , Kim Gwan-Shik , Baek Jeong-Hwa

BMPs and canonical Wnts are the representative developmental signals that enhance osteoblast differentiation and bone formation. Previously, we demonstrated that EGF inhibits BMP2-induced osteoblast differentiation through the induction of Smurf1 expression. However, the regulatory role of EGF in Wnt/β-catenin-induced osteoblast differentiation has not been elucidated. In this study, we investigated the effect of EGF on Wnt/β-catenin signaling-induced osteoblast diff...

ba0005p118 | Cancer and bone: basic, translational and clinical | ECTS2016

Menin is a tumor suppressor in bone -- a novel benign jaw tumor mouse model

Lee Sooyeon , Liu Peng , Tschaffon Miriam , Tasdogan Alpaslan , Wittig Rainer , Frappart Lucien , Knoll Jeanette , Bertolino Philippe , Zhang Chang , Tuckermann Jan

Benign jaw tumors including ossifying fibroma (OF) can be often incidentally diagnosed due to their slow-growing and painless characteristics. In cases of massive growing jaw tumors, it can result in deformity of teeth, infection and intracranial complications. Depending on the location of tumor lesion, it may not completely resected and recur after the primary operation, which may require subsequent operations.Molecular mechanisms and the etiology of th...

ba0005p193 | Cell biology: osteoclasts and bone resorption | ECTS2016

C-C chemokine receptor 5, a co-receptor of HIV, -mediated signal is required for geometric architecture and function of osteoclasts, thus for RANKL-induced bone destruction

Lee Ji-Won , Hoshino Akiyoshi , Saitou Takashi , Inoue Kazuki , Uehara Shunsuke , Kobayashi Yasuhiro , Matsushima Kouji , Imai Yuuki , Iimura Tadahiro

C-C chemokine receptor 5 (CCR5) is a co-receptor of macrophage-tropic viruses including HIV. Epidemiological and pathological findings have reported that functional changes in CCR5 correlate with HIV transmission bone destruction disease. However, the roles of CCR5 in bone pathophysiology have not been well documented.Ccr5-deficient osteoclasts showed decreased bone resorption activity accompanied with disorganized cellular architecture and impa...

ba0005p223 | Energy metabolism and bone, fat and bone | ECTS2016

Cyclic AMP/protein kinase A signalling downregulates Dlx5 expression via inducing C/Ebpβ in 3T3-L1 preadipocytes

Baek Jeong-Hwa , Lee Hye-Lim , Qadir Abdul , Kim Hyun Jeong , Chung Jin , Woo Kyung Mi , Ryoo Hyun-Mo

Distal-less homeobox 5 (Dlx5) is a transcription factor that enhances osteogenic differentiation of mesenchymal stem cells via upregulating the expression of Runx2 and other osteoblast phenotypic genes. We have previously demonstrated that Dlx5 also downregulates adipogenic differentiation of mesenchymal stem cells and that insulin decreases expression levels of Dlx5 via increasing expression levels of miR-124, a microRNA targeting 3′UTR of Dlx5. However, the mechanism o...

ba0005p335 | Osteoporosis: pathophysiology and epidemiology | ECTS2016

Qulaity of life of patients with osteoporotic vertebral compression fractures

Young Park Si , Jin Jung Ho , Soo Park Ye , Yeon Seo Hyoung , Chul Lee Jae , Joon Shin Byung , Chan An Ki

Introduction: As Korean society have been entered to aging population, osteoporosis is considered one of the most important disease in the elderly. Osteoporotic vertebral compression fractures can affect to patient’s quality of life. But, in Korea, there is few studies about this, so we investigated.Aim: To evaluate the quality of life of patients with vertebral compression fracture.Methods: This study was performed in multice...

ba0005p362 | Osteoporosis: pathophysiology and epidemiology | ECTS2016

Differential influence of social network upon osteoporosis affected by intimacy in Korean elderly women

Lee Seungwon , Hea Seo Da , Min Kim Kyoung , Chang Kim Hyeon , Oh Kim Chang , Youm Yoosik , Rhee Yumie

The present study figured out the relationship between social network and osteoporosis among elderly women. Social network could be beneficial to one’s health since it works as social capital providing several supports. On the other hand, social network can also be a source of social burden aggravating one’s health. To examine the seemingly contradicting associations, Korean Urban Rural Elderly Study (KURE) data was analyzed. There were 1938 older women aged over 65,...

ba0007p141 | (1) | ICCBH2019

Hypercalcaemia and osteonecrosis of the jaw in association with denosumab use in the paediatric population

Wall Christie-Lee , Pacey Verity , Gray Kelly , McGee Richard , Fiscaletti Melissa , Poon Myra , Biggin Andrew , Munns Craig

Background: Denosumab (DMAB) is used in adults for the treatment of osteoporosis, giant cell tumour of bone, and cancer metastases. There are little data on paediatric use with clinical decision making reliant on adult data and clinical experience.Presenting problem: We have treated 33 children with DMAB: Perthes disease (n=9), avascular necrosis (n=17), osteoporosis (n=1), aneurysmal bone cyst (n=4) and giant cell tum...