Article
Cell Biology
Austin G. Gouldin, M. Ethan Brown, Jennifer L. Puetzer
Summary: The study found that using riboflavin-465 nm is a promising method to trigger AGEs on demand in vivo or in vitro without impacting cell viability, offering potential for unraveling the mechanism of AGEs in age and diabetes related tissue damage.
CONNECTIVE TISSUE RESEARCH
(2022)
Article
Agriculture, Multidisciplinary
Haotian Chang, Elizabeth Johnson, Christina Khoo, Weixin Wang, Liwei Gu
Summary: Cranberry juice polyphenols (CJPs) and their fractions show significant inhibition of collagen glycation and breakage of AGE-induced collagen crosslinking. The ethyl acetate fraction and 60% methanol fraction exhibit the strongest anti-glycation effects, while the methanol fraction and acetone fraction are most effective in breaking AGE-induced collagen crosslinks.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Review
Biotechnology & Applied Microbiology
Lucas C. Olson, James T. Redden, Zvi Schwartz, David J. Cohen, Michael J. McClure
Summary: Advanced age causes harmful changes in skeletal muscles, leading to conditions such as muscle atrophy and an increase in collagen content, ultimately resulting in age-related muscle wasting disease. Advanced glycation end-products accumulate on muscular collagens in old age, promoting collagen accumulation and stiffening the microenvironment. Future research should focus on the role of AGEs in skeletal muscle aging.
BIOENGINEERING-BASEL
(2021)
Article
Biochemistry & Molecular Biology
Lucas C. Olson, Tri M. Nguyen, Rebecca L. Heise, Barbara D. Boyan, Zvi Schwartz, Michael J. McClure
Summary: Decellularized tissues derived from aged sources exhibit age-dependent increases in collagen amount, cross-linking, and stiffness. This suggests that age is an important factor to consider when sourcing skeletal muscle extracellular matrix as a biomaterial.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Applied
Hyun Hee L. Lee, Sang Keun Ha, Yoonsook Kim, Jinyoung Hur
Summary: A new pre-column derivatization method based on dansylation is proposed to overcome the analytical challenges in identifying and quantifying advanced glycation end products (AGEs). The method allows for the separation of different structural isomers of AGEs with low detection limits and wide linear ranges. The developed method shows potential applicability in various fields of food chemistry and biochemistry.
Article
Biochemistry & Molecular Biology
Sauradipta Banerjee
Summary: The study characterized MG-modified myoglobin in a time-dependent manner, with mass spectrometric studies indicating modifications at Lys-87 and Lys-133. Far-UV CD studies revealed alterations in protein structure and surface hydrophobicity as a result of MG modification. These findings suggest that MG-derived AGE adducts significantly impact the structure of Mb.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Biomedical
Marissa Britton, Eoin Parle, Ted J. Vaughan
Summary: This study investigated the adverse changes in bone quality due to the accumulation of advanced glycation end-products (AGEs) and their influence on fracture mechanics of cortical bone tissue. The results showed that AGE accumulation enhances some pre-and post-yield properties of the tissue, but does not play a role in bone fragility at fall-related loading rates.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Biology
Andrew J. Smith, Jayshree Advani, Daniel C. Brock, Jacob Nellissery, Jessica Gumerson, Lijin Dong, L. Aravind, Breandan Kennedy, Anand Swaroop
Summary: We identified a mitochondrial protein, GATD3A, with bacterial evolutionary affinities, that functions as a deglycase and restricts the formation of AGEs in mitochondria. GATD3A may play a role in maintaining the integrity of important biomolecules.
Article
Biochemistry & Molecular Biology
Elizabeth I. Harper, Michael D. Siroky, Tyvette S. Hilliard, Gena M. Dominique, Catherine Hammond, Yueying Liu, Jing Yang, Veronica B. Hubble, Danica J. Walsh, Roberta J. Melander, Christian Melander, Matthew J. Ravosa, M. Sharon Stack
Summary: Ovarian cancer is a significant cause of cancer-related death in women, especially those over the age of 60. The microenvironment of ovarian cancer undergoes age-related changes, such as the formation of AGEs, which promote metastasis. This pilot study explores the potential use of AGE breakers to improve therapy response in older ovarian cancer patients by targeting these age-related changes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Physical
Sauradipta Banerjee
Summary: Protein glycation, induced by a-dicarbonyl compound glyoxal in diabetic conditions, results in the formation of advanced glycation end products (AGEs) and structural alteration in proteins. The study on myoglobin incubated with glyoxal for 30 days revealed aggregation with amyloidal features and modification of specific residues to AGE adducts. This research provides insight into the mechanisms of AGE-induced protein modification and subsequent conformational disorders.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Nutrition & Dietetics
Marco Mouanness, Zaher Merhi
Summary: Advanced glycation end products (AGEs), formed by the reaction between protein and reducing sugars, can impact reproductive health and fertility through inducing inflammation and oxidative stress. This review summarizes the recent data on the pathogenesis of dietary AGEs and their potential impact on female reproductive health and offspring reproduction.
Article
Food Science & Technology
Hee-Weon Lee, Min Ji Gu, Jee-Young Lee, Seungju Lee, Yoonsook Kim, Sang Keun Ha
Summary: The study found that MOLD significantly increases RAGE expression in mouse mesangial cells, leading to ROS production and mitochondrial dysfunction. MOLD activates PI3KB and NF-kappa B signaling pathways, triggering inflammatory responses.
MOLECULAR NUTRITION & FOOD RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Hee-Weon Lee, Min Ji Gu, Yoonsook Kim, Jee-Young Lee, Seungju Lee, In-Wook Choi, Sang Keun Ha
Summary: This study evaluated the impact of glyoxal-lysine dimer (GOLD) on oxidative damage and inflammatory response in SV40 MES 13 mesangial cells. GOLD increased RAGE expression, reactive oxygen species production, and regulated NRF2 and GLO1 expression. Additionally, GOLD induced mitochondrial deterioration and inflammation through oxidative stress, and regulated MAPK and proinflammatory cytokines release. Inhibition of RAGE using RAGE siRNA suppressed the oxidative stress and inflammatory responses triggered by GOLD, highlighting the importance of the interaction between GOLD and RAGE in mesangial cell function.
Article
Engineering, Biomedical
Mina Vaez, Meisam Asgari, Liisa Hirvonen, Gorkem Bakir, Emilie Khattignavong, Maya Ezzo, Sebastian Aguayo, Christina M. Schuh, Kathleen Gough, Laurent Bozec
Summary: The presence of intramolecular and intermolecular crosslinks modulates the structural and functional properties of collagen. Advanced Glycation End-products (AGEs) can form intermolecular crosslinks by binding to neighboring proteins. This research investigates the hypothesis that the accumulation of AGEs in collagen decreases its proteolytic degradation rates while increasing its stiffness. Through various techniques, including fluorescence lifetime imaging and Fourier-transform infrared spectroscopy, the researchers detect biochemical changes in collagen scaffolds during the glycation process. Results show that the accumulation of AGEs leads to enhanced water sorption, differential elastic modulus, and slower proteolytic degradation behavior in collagen fibrils and scaffolds.
ACTA BIOMATERIALIA
(2023)
Article
Food Science & Technology
Felipe Avila, Nadia Cruz, Jazmin Alarcon-Esposito, Nelida Nina, Hernan Paillan, Katherine Marquez, Denis Fuentealba, Alberto Burgos-Edwards, Cristina Theoduloz, Carmina Vejar-Vivar, Guillermo Schmeda-Hirschmann
Summary: Phenolics from Chilean bean landraces were found to reduce levels of AGEs and oxidative modifications on proteins, with a synergic effect observed between caffeoyl malic acid (CMA) and rutin. This study suggests the potential use of these compounds to inhibit the formation of harmful protein modifications.
JOURNAL OF FUNCTIONAL FOODS
(2022)
Article
Endocrinology & Metabolism
Amy Creecy, Kyle L. Brown, Kristie L. Rose, Paul Voziyan, Jeffry S. Nyman
Summary: The research found that levels of deamidation of specific asparagine and glutamine residues in collagen I significantly increased with age, suggesting a new mechanism for the age-related reduction in fracture resistance of cortical bone.
Article
Biophysics
Gregory B. Lowen, Katherine A. Garrett, Stephanie N. Moore-Lotridge, Sasidhar Uppuganti, Scott A. Guelcher, Jonathan G. Schoenecker, Jeffry S. Nyman
Summary: Delayed long bone fracture healing and nonunion are significant socioeconomic burdens. Mechanical stimulation plays a crucial role in bone repair process. Understanding the impact of interfragmentary strain (IFS) in terms of its magnitude, mode, and commencement on fracture healing can guide the development of new therapeutic strategies. This proof-of-concept finite element analysis study focuses on identifying the design parameters of intramedullary nails (IMNs) that have the largest impact on IFS in a murine transverse femoral osteotomy model. Results show that the nail material, distance between interlocking screws, and clearance between the nail and endosteal surface are important factors affecting IFS. Therefore, low modulus IMNs, such as PEEK, can be used alongside commercially available SS nails to investigate the effect of initial IFS or stability on fracture healing in different biological repair conditions.
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Endocrinology & Metabolism
M. Saito, S. N. Moore-Lotridge, S. Uppuganti, S. Egawa, T. Yoshii, J. P. Robinette, S. L. Posey, B. H. Y. Gibson, H. A. Cole, G. D. Hawley, S. A. Guelcher, S. B. Tanner, J. R. McCarthy, J. S. Nyman, J. G. Schoenecker
Summary: This study found that bisphosphonates can prevent severe injury-induced bone loss and soft tissue calcification if administered early after injury, without interfering with bone repair or remodeling.
OSTEOPOROSIS INTERNATIONAL
(2022)
Article
Cardiac & Cardiovascular Systems
J. Ethan Joll Ii, Matthew R. Bersi, Jeffry S. Nyman, W. David Merryman
Summary: Postmenopausal women with severe osteoporosis tend to have worse cardiovascular outcomes. This study evaluated the left ventricle and aortic valve phenotype of ovariectomized mice on a Western diet. The results showed that ovariectomized mice had increased left ventricle mass compared to control mice, but no fibrosis. This model provides a novel method for studying left ventricle hypertrophy in female populations.
AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY
(2022)
Article
Instruments & Instrumentation
Donald H. Lee, Kaitlyn Reasoner, Sasidhar Uppuganti, Mihir J. Desai, Jeffry S. Nyman
Summary: This study investigated the safety and utility of impact microindentation technique in measuring bone quality during surgical procedures. The results showed that there were no significant differences in bone material strength index (BMSi) between patients with different fracture histories, indicating that BMSi may not be sensitive to osteoporosis. The study demonstrated the feasibility of intraoperative impact microindentation but called for further research to determine its ability to identify patients with inferior bone matrix quality.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Endocrinology & Metabolism
Sasidhar Uppuganti, Thammathida Ketsiri, Yumeng Zhang, Mark D. Does, Jeffry S. Nyman
Summary: This study found that HR-pQCT parameters are capable of predicting the bending strength of cortical bone, with cortical area and estimated failure load showing the strongest correlation with ultimate moment. However, there was no significant correlation between HR-pQCT parameters and post-yield displacement, an indicator of bone brittleness.
Article
Computer Science, Interdisciplinary Applications
Thammathida Ketsiri, Sasidhar Uppuganti, Kevin D. Harkins, Daniel F. Gochberg, Jeffry S. Nyman, Mark D. Does
Summary: Ultrashort echo time (UTE) MRI techniques can be used to assess the concentration of water in bones, which have the potential to serve as biomarkers for bone fracture risk. This study demonstrates that MRI-derived measures of collagen-bound water concentration (C-bw) and pore water concentration (C-pw) improve the prediction of bone mechanical properties and have the potential to assess patient-specific bone fragility risk.
COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING
(2023)
Article
Endocrinology & Metabolism
Rafay Ahmed, Sasidhar Uppuganti, Shrey Derasari, Joshua Meyer, Jacquelyn S. Pennings, Florent Elefteriou, Jeffry S. Nyman
Summary: This study assessed the ability of matrix-sensitive techniques to differentiate between NF1 mice and wild-type mice. The results showed that low bound water and cortical volumetric bone mineral density were the most accurate characteristics for distinguishing between the two genotypes in femurs, while cyclic reference point indentation tests' average unloading slope was the most sensitive in differentiating tibias. These findings provide guidance for the clinical trials of NF1.
JOURNAL OF BONE AND MINERAL RESEARCH
(2022)
Article
Cardiac & Cardiovascular Systems
J. Ethan Joll, Lance A. Riley, Matthew R. Bersi, Jeffry S. Nyman, W. David Merryman
Summary: This study demonstrates that genetic ablation of the Sost gene can prevent aortic valve stenosis in aged mice on a Western diet. This reveals a novel role for sclerostin in the cardiovascular system. It is one of the first studies to directly manipulate sclerostin in a cardiovascular disease model, specifically studying the aortic valve. Additionally, this study highlights the potential involvement of Hox genes in cardiovascular disease, with the upregulation of pan-Hox genes in the aortic roots of sclerostin knockouts.
AMERICAN JOURNAL OF PHYSIOLOGY-HEART AND CIRCULATORY PHYSIOLOGY
(2022)
Article
Engineering, Biomedical
Mustafa Unal, Sasidhar Uppuganti, Daniel Y. Dapaah, Rafay Ahmed, Jacquelyn S. Pennings, Thomas L. Willett, Paul Voziyan, Jeffry S. Nyman
Summary: Raman spectroscopy (RS) can detect the accumulation of advanced glycation end-products (AGEs) and measure matrix-sensitive properties related to the fracture toughness of human cortical bone. However, it is unclear if the sugar-mediated accumulation of AGEs affects the fracture toughness of human cortical bone as indicated by the negative correlations between amide I sub-peak ratios.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Spectroscopy
Rekha Gautam, Rafay Ahmed, Ezekiel Haugen, Mustafa Unal, Sean Fitzgerald, Sasidhar Uppuganti, Anita Mahadevan-Jansen, Jeffry S. Nyman
Summary: This study investigated the feasibility of using spatially offset Raman spectroscopy (SORS) to acquire Raman bands related to bone fracture resistance. The results showed that autoclaving of femur mid-shafts reduced the yield stress of cortical beams. Autoclaving also affected the Raman characteristics of the organic matrix, but changes in Raman properties related to bone strength could still be detected with SORS.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Rafay Ahmed, Mustafa Unal, Rekha Gautam, Sasidhar Uppuganti, Shrey Derasari, Anita Mahadevan-Jansen, Jeffry S. Nyman
Summary: The fracture resistance of bone is determined by the hierarchical arrangement of minerals, collagen fibrils, non-collagenous proteins, and water. Raman spectroscopy can detect changes in the protein structure and composition, making it a valuable tool for studying bone properties.
Review
Chemistry, Analytical
Mustafa Unal, Rafay Ahmed, Anita Mahadevan-Jansen, Jeffry S. Nyman
Summary: Raman spectroscopy is a non-destructive method used to analyze the physiochemical properties of bone. Over two decades of research have developed multiple methods for acquiring Raman signals from bone and determining peak ratios, although selecting which methods to use is not always clear. This article provides guidance on how RS instruments influence Raman spectra quality and the challenges in preparing acquired spectra for determining bone matrix properties.
Article
Endocrinology & Metabolism
Alanna M. Dubrovsky, Jeffrey S. Nyman, Sasidhar Uppuganti, Kenneth J. Chmiel, Donald B. Kimmel, Nancy E. Lane
Summary: This study investigates whether adult mice can serve as a model for bone strength/mass discrepancy, indicating that glucocorticoid treatment may result in reduced bone mass and strength decrease.
Review
Endocrinology & Metabolism
Jemima E. Schadow, David Maxey, Toby O. Smith, Mikko A. J. Finnila, Sarah L. Manske, Neil A. Segal, Andy Kin On Wong, Rachel A. Davey, Tom Turmezei, Kathryn S. Stok
Summary: This study systematically reviewed the published parameters for assessing subchondral bone in human osteoarthritis using computed tomography. The study identified clinically meaningful parameter categories and emphasized the importance of quantification and standardized measurement methods for improving the evaluation of disease progression.
Article
Endocrinology & Metabolism
Lindsay L. Loundagin, Kim D. Harrison, Xuan Wei, David M. L. Cooper
Summary: This study developed new techniques to define zones of BMU activity based on the 3D morphology of remodeling spaces in rabbit cortical bone and integrated morphological data with the BMU longitudinal erosion rate (LER) to elucidate the spatial-temporal coordination of BMUs and estimate mineral apposition rate (MAR). The results showed that the manual and semi-automated methods accurately defined the zones of remodeling spaces, and these techniques have the potential to assess dynamic parameters of bone resorption and formation.
Article
Endocrinology & Metabolism
Soroush Masrouri, Farzad Esmaeili, Maryam Tohidi, Fereidoun Azizi, Farzad Hadaegh
Summary: This study examined the association between estimated glomerular filtration rate (eGFR) decline and fracture incidence. The results showed that rapid kidney function decline (RKFD) can increase the incidence of fractures among the general population.
Article
Endocrinology & Metabolism
Steven J. Meas, Gabriella M. Daire, Michael A. Friedman, Rachel Denapoli, Preetam Ghosh, Joshua N. Farr, Henry J. Donahue
Summary: Age- and disuse-related bone loss both lead to decreases in bone mineral density, cortical thickness, and trabecular thickness and connectivity. It is important to experimentally compare these two mechanisms at a structural and transcriptomic level to better understand their similarities and differences. This study compares the effects of hindlimb unloading and aging on bone microarchitecture and gene expression in mice, finding that while both induce similar changes, aging has a greater impact on the transcriptome and tissue level.
Correction
Endocrinology & Metabolism
Masaru Matsuoka, Sho Tsukamoto, Yuta Orihara, Rieko Kawamura, Mai Kuratani, Nobuhiko Haga, Kenji Ikebuchi, Takenobu Katagiri
Article
Endocrinology & Metabolism
Rachel Kohler, Amy Creecy, David R. Williams, Matthew R. Allen, Joseph M. Wallace
Summary: Osteogenesis imperfecta is a hereditary bone disease that weakens bones and increase fracture risk. Current interventions mainly focus on increasing bone mass, but the compromised tissue-level material properties are not addressed. A study found that a RAL analog could reduce fracture risk, but further development is needed for optimal results in patients with osteogenesis imperfecta.
Article
Endocrinology & Metabolism
So Jeong Park, Eunhye Ji, Hyun Ju Yoo, Kyunggon Kim, Sunghwan Ji, Ji Yeon Baek, Jin Young Lee, Hee-Won Jung, Il-Young Jang, Eunju Lee, Namki Hong, Beom-Jun Kim
Summary: The study analyzed the relationship between serum lumican levels and osteosarcopenia in older adults, showing that older adults with osteosarcopenia had lower serum lumican levels. Lower serum lumican levels were associated with reduced bone mass and grip strength, indicating that lumican levels could be used as a biomarker for assessing the risk of osteosarcopenia, osteoporosis, or sarcopenia in older adults.
Article
Endocrinology & Metabolism
Michael B. Chavez, Michelle H. Tan, Tamara N. Kolli, Natalie L. Andras, Brian L. Foster
Summary: This study revealed the complex mechanisms by which disabling BSP functional domains led to profound and distinct changes in cementoblast cell functions, including dysregulated gene expression and reduced mineralization.
Article
Endocrinology & Metabolism
Julien Seiller, Blandine Merle, Romain Fort, Emilie Virot, Solene Poutrel, Giovanna Cannas, Arnaud Hot, Roland Chapurlat
Summary: The purpose of this study was to assess the prevalence of bone fragility in sickle cell patients and to evaluate the potential risk factors and associated complications.
Article
Endocrinology & Metabolism
Chirantap Oza, Anuradha Khadilkar, Pranay Goel, Madhura Karguppikar, Nikhil Shah, Nikhil Lohiya, Shruti Mondkar, Prashant Patil, Hemchand Prasad, Ankita Maheshwari, Dipali Ladkat, Neha Kajale, Chidvilas More, Devarati Khurjekar, Vaman Khadilkar
Summary: This study revealed that BoneXpert (BX) can be used for accurate assessment of bone age and screening of bone health in Indian children and youth with type-1 diabetes (T1D). 51.5% of T1D subjects showed significantly decreased metacarpal index (MCI). Height, Tanner stage, and vitamin D concentrations were positively correlated with MCI, while HbA1c and disease duration were negatively correlated with MCI.
Article
Endocrinology & Metabolism
Mariam R. Farman, Catherine Rehder, Theodora Malli, Cheryl Rockman-Greenberg, Kathryn Dahir, Gabriel Angel Martos-Moreno, Agnes Linglart, Keiichi Ozono, Lothar Seefried, Guillermo del Angel, Gerald Webersinke, Francesca Barbazza, Lisa K. John, Sewmi M. A. Delana Mudiyanselage, Florian Hoegler, Erica Burner Nading, Erin Huggins, Eric T. Rush, Ahmed El-Gazzar, Priya S. Kishnani, Wolfgang Hoegler
Summary: The ALPL gene variant database serves as an archive for interpreting the clinical significance of ALPL gene variants, facilitating the reclassification of VUS and continuous updates. The project establishes an international expert consortium, providing a multidisciplinary collaboration framework to improve genetic counseling and medical decision-making for HPP patients.
Article
Endocrinology & Metabolism
Giovanni Adami, Davide Gatti, Maurizio Rossini, Alessandro Giollo, Matteo Gatti, Francesco Bertoldo, Eugenia Bertoldo, Amy S. Mudano, Kenneth G. Saag, Ombretta Viapiana, Angelo Fassio
Summary: Certain diseases requiring glucocorticoids are independently associated with an increased risk of fractures. Chronic obstructive pulmonary disease (COPD) and neurological diseases are associated with both vertebral and non-vertebral fracture risk, while rheumatoid arthritis (RA) and inflammatory bowel disease (IBD) are only associated with non-vertebral fractures.
Article
Endocrinology & Metabolism
Frank C. Ko, Rong Xie, Brandon Willis, Zoe G. Herdman, Bryan A. Dulion, Hoomin Lee, Chun-do Oh, Di Chen, D. Rick Sumner
Summary: Intramembranous bone regeneration is important in joint and tooth replacement, but its underlying mechanisms are not well understood. This study found that increased periostin gene expression preceded increases in osteogenic genes during bone regeneration. Using a genetic mouse model, the researchers discovered that cells transiently expressing periostin played a critical role in intramedullary intramembranous bone regeneration.
Article
Endocrinology & Metabolism
T. Savikangas, T. H. Suominen, M. Alen, T. Rantalainen, S. Sipila
Summary: Regular exercise, especially high-intensity physical activity, can help slow down age-related bone loss and prevent a decline in femoral neck bone mineral density.
Article
Endocrinology & Metabolism
Mishaela R. Rubin, Ruban Dhaliwal
Summary: The increased risk of fractures observed in adults with type 1 diabetes (T1D) cannot be solely explained by modest decreases in areal bone mineral density (BMD). Accumulation of advanced glycation endproducts (AGEs) in bone has been suggested as a possible cause for the increased bone fragility in diabetes. Although the evidence linking AGEs and fractures in individuals with T1D is limited, recent data show that AGEs, as measured by skin intrinsic fluorescence, are a risk factor for lower BMD in T1D. Further research is needed to determine if there is a causal relationship between fractures and AGEs in T1D. If confirmed, this could lead to interventions that can reduce AGE accumulation and ultimately reduce fractures in T1D patients.