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Luo W, Wu J, Chen Z, Guo P, Zhang Q, Lei B, Chen Z, Li S, Li C, Liu H, Ma T, Liu J, Chen X, Ding Y. Evaluation of fragility fracture risk using deep learning based on ultrasound radio frequency signal. Endocrine 2024:10.1007/s12020-024-03931-z. [PMID: 38982023 DOI: 10.1007/s12020-024-03931-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 06/13/2024] [Indexed: 07/11/2024]
Abstract
BACKGROUND It was essential to identify individuals at high risk of fragility fracture and prevented them due to the significant morbidity, mortality, and economic burden associated with fragility fracture. The quantitative ultrasound (QUS) showed promise in assessing bone structure characteristics and determining the risk of fragility fracture. AIMS To evaluate the performance of a multi-channel residual network (MResNet) based on ultrasonic radiofrequency (RF) signal to discriminate fragility fractures retrospectively in postmenopausal women, and compared it with the traditional parameter of QUS, speed of sound (SOS), and bone mineral density (BMD) acquired with dual X-ray absorptiometry (DXA). METHODS Using QUS, RF signal and SOS were acquired for 246 postmenopausal women. An MResNet was utilized, based on the RF signal, to categorize individuals with an elevated risk of fragility fracture. DXA was employed to obtain BMD at the lumbar, hip, and femoral neck. The fracture history of all adult subjects was gathered. Analyzing the odds ratios (OR) and the area under the receiver operator characteristic curves (AUC) was done to evaluate the effectiveness of various methods in discriminating fragility fracture. RESULTS Among the 246 postmenopausal women, 170 belonged to the non-fracture group, 50 to the vertebral group, and 26 to the non-vertebral fracture group. MResNet was competent to discriminate any fragility fracture (OR = 2.64; AUC = 0.74), Vertebral fracture (OR = 3.02; AUC = 0.77), and non-vertebral fracture (OR = 2.01; AUC = 0.69). After being modified by clinical covariates, the efficiency of MResNet was further improved to OR = 3.31-4.08, AUC = 0.81-0.83 among all fracture groups, which significantly surpassed QUS-SOS (OR = 1.32-1.36; AUC = 0.60) and DXA-BMD (OR = 1.23-2.94; AUC = 0.63-0.76). CONCLUSIONS This pilot cross-sectional study demonstrates that the MResNet model based on the ultrasonic RF signal shows promising performance in discriminating fragility fractures in postmenopausal women. When incorporating clinical covariates, the efficiency of the modified MResNet is further enhanced, surpassing the performance of QUS-SOS and DXA-BMD in terms of OR and AUC. These findings highlight the potential of the MResNet as a promising approach for fracture risk assessment. Future research should focus on larger and more diverse populations to validate these results and explore its clinical applications.
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Affiliation(s)
- Wenqiang Luo
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P.R. China
- Bioland Laboratory, Guangzhou, 510320, P.R. China
| | - Jionglin Wu
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P.R. China
- Bioland Laboratory, Guangzhou, 510320, P.R. China
| | - Zhiwei Chen
- School of Biomedical Engineering, Health Science Center, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Shenzhen University, Shenzhen, 518060, P.R. China
| | - Peidong Guo
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P.R. China
- Bioland Laboratory, Guangzhou, 510320, P.R. China
| | - Qi Zhang
- Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, National Innovation Center for Advanced Medical Devices, Shenzhen, 518126, China
| | - Baiying Lei
- School of Biomedical Engineering, Health Science Center, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Shenzhen University, Shenzhen, 518060, P.R. China
| | - Zhong Chen
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P.R. China
- Bioland Laboratory, Guangzhou, 510320, P.R. China
| | - Shixun Li
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P.R. China
- Bioland Laboratory, Guangzhou, 510320, P.R. China
| | - Changchuan Li
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P.R. China
- Bioland Laboratory, Guangzhou, 510320, P.R. China
| | - Haoxian Liu
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P.R. China
- Bioland Laboratory, Guangzhou, 510320, P.R. China
| | - Teng Ma
- Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
- Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, National Innovation Center for Advanced Medical Devices, Shenzhen, 518126, China.
| | - Jiang Liu
- Department of Computer Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, P.R. China.
| | - Xiaoyi Chen
- Guoke Ningbo Life Science and Health Industry Research Institute, Ningbo, 315020, P.R. China.
| | - Yue Ding
- Department of Orthopedic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, P.R. China.
- Bioland Laboratory, Guangzhou, 510320, P.R. China.
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Tan J, Zhang Z, He Y, Xu X, Yang Y, Xu Q, Yuan Y, Wu X, Niu J, Tang S, Wu X, Hu Y. Development and validation of a risk prediction model for osteoporosis in elderly patients with type 2 diabetes mellitus: a retrospective and multicenter study. BMC Geriatr 2023; 23:698. [PMID: 37891456 PMCID: PMC10604807 DOI: 10.1186/s12877-023-04306-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 09/11/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND This study aimed to construct a risk prediction model to estimate the odds of osteoporosis (OP) in elderly patients with type 2 diabetes mellitus (T2DM) and evaluate its prediction efficiency. METHODS This study included 21,070 elderly patients with T2DM who were hospitalized at six tertiary hospitals in Southwest China between 2012 and 2022. Univariate logistic regression analysis was used to screen for potential influencing factors of OP and least absolute shrinkage. Further, selection operator regression (LASSO) and multivariate logistic regression analyses were performed to select variables for developing a novel predictive model. The area under the receiver operating characteristic curve (AUROC), calibration curve, decision curve analysis (DCA), and clinical impact curve (CIC) were used to evaluate the performance and clinical utility of the model. RESULTS The incidence of OP in elderly patients with T2DM was 7.01% (1,476/21,070). Age, sex, hypertension, coronary heart disease, cerebral infarction, hyperlipidemia, and surgical history were the influencing factors. The seven-variable model displayed an AUROC of 0.713 (95% confidence interval [CI]:0.697-0.730) in the training set, 0.716 (95% CI: 0.691-0.740) in the internal validation set, and 0.694 (95% CI: 0.653-0.735) in the external validation set. The optimal decision probability cut-off value was 0.075. The calibration curve (bootstrap = 1,000) showed good calibration. In addition, the DCA and CIC demonstrated good clinical practicality. An operating interface on a webpage ( https://juntaotan.shinyapps.io/osteoporosis/ ) was developed to provide convenient access for users. CONCLUSIONS This study constructed a highly accurate model to predict OP in elderly patients with T2DM. This model incorporates demographic characteristics and clinical risk factors and may be easily used to facilitate individualized prediction.
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Affiliation(s)
- Juntao Tan
- Operation Management Office, Affiliated Banan Hospital of Chongqing Medical University, Chongqing, 401320, China
| | - Zhengyu Zhang
- Medical Records Department, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| | - Yuxin He
- Department of Medical Administration, Affiliated Banan Hospital of Chongqing Medical University, Chongqing, 401320, China
| | - Xiaomei Xu
- Department of Infectious Diseases, Chengdu Fifth People's hospital, Chengdu, 611130, China
| | - Yanzhi Yang
- Department of Endocrinology and Metabolism, Chengdu First People's Hospital, Chengdu, 610041, China
| | - Qian Xu
- College of Medical Informatics, Chongqing Medical University, Chongqing, 400016, China
- Medical Data Science Academy, Chongqing Medical University, Chongqing, 400016, China
- Library, Chongqing Medical University, Chongqing, 400016, China
| | - Yuan Yuan
- Medical Records Department, Women and Children's Hospital of Chongqing Medical University, Chongqing, 401147, China
| | - Xin Wu
- Department of Gastrointestinal surgery, Third Affiliated Hospital of Chongqing Medical University, Chongqing, 401120, China
| | - Jianhua Niu
- Department of Critical Care, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qing Chun Road, Hangzhou, 310003, Zhejiang, China
| | - Songjia Tang
- Plastic and Aesthetic Surgery Department, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310000, Zhejiang, China.
| | - Xiaoxin Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, the First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qing Chun Road, Hangzhou, 310003, Zhejiang, China.
| | - Yongjun Hu
- Department of Orthopedics, Affiliated Banan Hospital of Chongqing Medical University, Chongqing, 401320, China.
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Zhu R, Xu Y, Wang Z, Li H, Song M, Wan H, Yang H, Zhang X, Chai Y, Yu B. Higher serum apolipoprotein B level will reduce the bone mineral density and increase the risk of osteopenia or osteoporosis in adults. Front Cell Dev Biol 2022; 10:1054365. [PMID: 36568987 PMCID: PMC9780286 DOI: 10.3389/fcell.2022.1054365] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/18/2022] [Indexed: 12/13/2022] Open
Abstract
Objective: There is very limited evidence in the NHANES database linking serum apolipoprotein B and lumbar bone mineral density (BMD) in adults aged 20-59 years. There are few studies associating apolipoprotein B concentrations with BMD, and there is some debate about the association between obesity and BMD. Therefore, the purpose of this study was to determine the association between serum apolipoprotein B concentrations and lumbar spine BMD in adults aged 20-59 years and to predict its association with risk of osteopenia or osteoporosis. Methods: A cross-sectional study of the entire US ambulatory population was conducted using data from the National Health and Nutrition Examination Survey (NHANES) database. Weighted multiple regression equation models were used to assess the association between serum apolipoprotein B and lumbar BMD. A logistic weighted regression model was used to assess the association between serum apolipoprotein B concentrations and risk of osteopenia or osteoporosis. Subsequent stratified analyses were performed to refine the primary population of association. Results: Our study showed a significant negative association between serum apolipoprotein B concentration and lumbar BMD and a significant positive association with the risk of osteoporosis or osteopenia in the total population. After stratifying by sex, age and race, we concluded differently. The association of serum apolipoprotein B concentration with lumbar spine BMD and risk of osteopenia or osteoporosis was significant in male, but not in female. After stratification by age, the negative association between serum apolipoprotein B concentrations and lumbar BMD and the positive association with risk of osteopenia or osteoporosis was more significant in the 30-39 and 50-59 years age groups. When stratified by race, serum apolipoprotein B concentrations were significantly negatively associated with lumbar BMD and positively associated with risk of osteopenia or osteoporosis in Mexican American and non-Hispanic black populations. Thus, these findings suggest that these associations are influenced by sex, age, and race, respectively. Conclusion: Our results suggest that the association between serum apolipoprotein B levels and the risk of lumbar BMD and osteopenia or osteoporosis varies by sex, age, and race. In men, elevated serum apolipoprotein B levels were negative for bone quality. Elevated serum apolipoprotein B levels in the age groups 30-39 and 50-59 years also had a negative effect on bone quality. In the Mexican American and Non-Hispanic Black populations, elevated serum apolipoprotein B levels also had a significant negative effect on bone quality.
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Affiliation(s)
- RunJiu Zhu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuan Xu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - ZhaoFu Wang
- Department of Orthopaedics, People’s Hospital of Ningxia Hui Autonomous Region, Yinchuan, China
| | - Hui Li
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - MingRui Song
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - HaoYang Wan
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hong Yang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China,Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xin Zhang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China,Department of Orthopaedics & Traumatology, Wuyi Hospital of Traditional Chinese Medicine, Jiangmen, China
| | - Yu Chai
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China,*Correspondence: Bin Yu, ; Yu Chai,
| | - Bin Yu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, China,Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China,*Correspondence: Bin Yu, ; Yu Chai,
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Selvakumar R, Chandran A, Patil A, Harini TC, Dandekeri S, Verma D, Babu JS, Swarnalatha C, Nayyar AS. Osteoporosis risk group: Screening for osteoporosis in dental clinics using panoramic radiographs. JOURNAL OF EDUCATION AND HEALTH PROMOTION 2022; 11:271. [PMID: 36325220 PMCID: PMC9621361 DOI: 10.4103/jehp.jehp_1727_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 02/07/2022] [Indexed: 06/16/2023]
Abstract
Osteoporosis is a specific condition which is characterized by low bone mineral density (BMD) and deterioration of bone structure resulting in an increased susceptibility to fractures. It contributes to a great deal of morbidity and mortality, and is a large burden to the healthcare system, especially in the case of the elderly population. In the last four decades, a plethora of studies have reported characteristic oral radiographic findings in the early stages of osteoporosis, suggesting the possible use of oral radiographic signs for the early detection of the condition. Digital orthopantomographs (OPGs) are usually taken for the screening of dental patients during routine dental evaluations. These radiographs and the characteristic changes seen on them may have a significant role in the screening for initial osteoporotic changes. A number of precise radiomorphometric indices of the mandible have also been developed to allow quantification of the mandibular bone mass for identification of the initial signs of osteoporosis. The present review focuses on the possible role of panoramic radiographs in the initial screening for osteoporosis in dental clinics in high-risk groups.
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Affiliation(s)
- Rajkumar Selvakumar
- Department of Oral and Maxillofacial Surgery, Rajah Muthiah Dental College and Hospital, Annamalai University, Annamalai Nagar, Tamil Nadu, India
| | - Ajay Chandran
- Department of Oral and Maxillofacial Surgery, Sathyabama Dental College and Hospital, Chennai, Tamil Nadu, India
| | - Abhijit Patil
- Department of Prosthodontics and Crown and Bridge, The KLE Academy of Higher Education and Research, KLE V.K. Institute of Dental Sciences and Hospital, Belgaum, Karnataka, India
| | - TC Harini
- Department of Oral Pathology and Microbiology, SJM Dental College and Hospital, Chitradurga, Karnataka, India
| | - Shilpa Dandekeri
- Department of Prosthodontics and Crown and Bridge, Nitte (Deemed to be university), AB, Shetty Memorial Institute of Dental Sciences, Mangalore, Karnataka, India
| | - Diksha Verma
- Department of Prosthodontics and Crown and Bridge, Jaipur Dental College, Jaipur, Rajasthan, India
| | - J Suresh Babu
- Division of Periodontology, Department of Preventive Dental Sciences, College of Dentistry, University of Ha’il, Ha’il, Kingdom of Saudi Arabia
| | - C Swarnalatha
- Division of Periodontology, Department of Preventive Dental Sciences, College of Dentistry, University of Ha’il, Ha’il, Kingdom of Saudi Arabia
| | - Abhishek S. Nayyar
- Department of Oral Medicine and Radiology, Saraswati Dhanwantari Dental College and Hospital and Post-Graduate Research Institute, Parbhani, Maharashtra, India
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Zhang W, Huang P, Lin J, Zeng H. The Role of Extracellular Vesicles in Osteoporosis: A Scoping Review. MEMBRANES 2022; 12:membranes12030324. [PMID: 35323799 PMCID: PMC8948898 DOI: 10.3390/membranes12030324] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/03/2022] [Accepted: 03/11/2022] [Indexed: 02/06/2023]
Abstract
As an insidious metabolic bone disease, osteoporosis plagues the world, with high incidence rates. Patients with osteoporosis are prone to falls and becoming disabled, and their cone fractures and hip fractures are very serious, so the diagnosis and treatment of osteoporosis is very urgent. Extracellular vesicles (EVs) are particles secreted from cells to the outside of the cell and they are wrapped in a bilayer of phospholipids. According to the size of the particles, they can be divided into three categories, namely exosomes, microvesicles, and apoptotic bodies. The diameter of exosomes is 30–150 nm, the diameter of microvesicles is 100–1000 nm, and the diameter of apoptotic bodies is about 50–5000 nm. EVs play an important role in various biological process and diseases including osteoporosis. In this review, the role of EVs in osteoporosis is systematically reviewed and some insights for the prevention and treatment of osteoporosis are provided.
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Affiliation(s)
- Weifei Zhang
- Department of Bone & Joint Surgery/National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China;
| | - Pengzhou Huang
- National Cancer Center & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, China;
| | - Jianjing Lin
- Arthritis Clinical and Research Center, Peking University People’s Hospital, Beijing 100044, China
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen 518036, China
- Correspondence: (J.L.); (H.Z.)
| | - Hui Zeng
- Department of Bone & Joint Surgery/National & Local Joint Engineering Research Center of Orthopaedic Biomaterials, Peking University Shenzhen Hospital, Shenzhen 518036, China;
- Correspondence: (J.L.); (H.Z.)
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Puszczalowska-Lizis E, Koziol K, Omorczyk J. Perception of footwear comfort and its relationship with the foot structure among youngest-old women and men. PeerJ 2021; 9:e12385. [PMID: 34722004 PMCID: PMC8532988 DOI: 10.7717/peerj.12385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 10/04/2021] [Indexed: 11/20/2022] Open
Abstract
Background Adequate footwear comfort and functionality are important regardless of age, but they become particularly important in the youngest-old women and men, mainly due to the fact that this age range is the initial period of old age with changes in shoe preferences. The aim of this study was to assess the perception of footwear comfort and its relationship with the feet structure in youngest-old women and men. Methods The cross-sectional study covered community dwellers living on their own aged 65–74 years (50 women; 50 men). The feet characteristics were measured using the CQ-ST podoscope (Electronic System, Ltd, EU), and the perception of footwear comfort was assessed with a visual analogue scale. The assessment took into account gender-specific footwear of a certain brand (Befado Dr orto). Results Statistically significant intergender differences were observed in the perception of footwear comfort with respect to the shoe heel width (p = 0.022), the arch height (p = 0.013), the overall comfort (p = 0.049) and the material properties of the footwear (p = 0.017). In women, there were statistically significant positive relationships among the heel angle (γ) and the perception of footwear comfort in terms of heel cushioning (p = 0.021), forefoot cushioning (p = 0.015), arch height (p = 0.029). In men, there was a statistically significant negative relationship of the left foot Clarke’s angle with the heel height (p = 0.043), and a positive relationship between the right foot width and the arch height (p = 0.044). Conclusions Youngest-old women, compared to men of the same age range, have a higher perception of shoe comfort in terms of the shoe heel width, the arch height, the overall comfort of the footwear and the material properties of the footwear. The appropriate profile and construction of the shoe allows for an increase in the contact surface of the foot with the shoe, hence the improvement in the perception of footwear comfort in people with lowered arch or widened forefoot.
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Affiliation(s)
| | | | - Jaroslaw Omorczyk
- Faculty of Physical Education and Sport, Institute of Sport, University of Physical Education in Krakow, Krakow, Poland
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Wilson LAB, De Groote I, Humphrey LT. Sex differences in the patterning of age-related bone loss in the human hallucal metatarsal in rural and urban populations. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2020; 171:628-644. [PMID: 31925961 DOI: 10.1002/ajpa.24002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/18/2019] [Accepted: 12/17/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Age-degenerative features of the metatarsals are poorly known despite the importance of metatarsal bone properties for investigating mobility patterns. We assessed the role of habitual activity in shaping the patterning and magnitude of sexual dimorphism in age-related bone loss in the hallucal metatarsal. MATERIALS AND METHODS Cross-sections were extracted at midshaft from micro-computed tomography scan models of individuals from medieval rural (Abingdon Vineyard) and early industrial urban (Spitalfields) settings (n = 71). A suite of cross-sectional geometry dimensions and biomechanical properties were compared between populations. RESULTS The rural group display generally stronger and larger metatarsals that show a greater capacity to resist torsion and that have comparatively greater bending strength along the medio-lateral plane. Men in both groups show greater values of cortical area than women, but only in the urban group do men show lower magnitudes of age-related decline compared to females. Women in rural and urban populations show different patterns of age-related decline in bone mass, particularly old women in the urban group show a marked decline in cortical area that is absent for women in the rural group. DISCUSSION Lifetime exposure to hard, physical activity in an agricultural setting has contributed to the attainment of greater bone mass and stronger bones in young adults. Furthermore, over the life-course, less of this greater amount of bone is lost, such that sustained activity levels may have acted to buffer against age-related decline, and this is most pronounced for women, who are expected to experience greater bone loss later in life than men.
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Affiliation(s)
- Laura A B Wilson
- School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Isabelle De Groote
- School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK
- Department of Archaeology, Section Prehistory of western Europe, Ghent University, Ghent, Belgium
| | - Louise T Humphrey
- Department of Earth Sciences, The Natural History Museum London, London, UK
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Seeman MV. Women who suffer from schizophrenia: Critical issues. World J Psychiatry 2018; 8:125-136. [PMID: 30425943 PMCID: PMC6230925 DOI: 10.5498/wjp.v8.i5.125] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 08/24/2018] [Accepted: 10/11/2018] [Indexed: 02/05/2023] Open
Abstract
Many brain diseases, including schizophrenia, affect men and women unequally - either more or less frequently, or at different times in the life cycle, or to varied degrees of severity. With updates from recent findings, this paper reviews the work of my research group over the last 40 years and underscores issues that remain critical to the optimal care of women with schizophrenia, issues that overlap with, but are not identical to, the cares and concerns of men with the same diagnosis. Clinicians need to be alert not only to the overarching needs of diagnostic groups, but also to the often unique needs of women and men.
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Affiliation(s)
- Mary V Seeman
- Department of Psychiatry, University of Toronto, Institute of Medical Science, Toronto, ON M5P 3L6, Canada
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