Results 121 to 130 of about 115,464 (311)

Optical Windows for Transcranial Brain Imaging in Living Mice: Skull Thinning, Clearing, and Beyond

Advanced Science, EarlyView.
Longitudinal, noninvasive in vivo imaging is crucial for studying brain physiology. Advances in transcranial optical windows and multiphoton microscopy have improved imaging depth, but their performance often deteriorates over time. This work investigated various transcranial window approaches and found that skull regrowth limits image quality.
Yiming Fu, Gewei Yan, Zhentao She, Yingzhu He, Kangqi Liu, Jianan Qu   +5 more
wiley   +1 more source

Vitamin B-12 deficiency stimulates osteoclastogenesis via increased homocysteine and methylmalonic acid [PDF]

, 2009
The risk of nutrient deficiencies increases with age in our modern Western society, and vitamin B(12) deficiency is especially prevalent in the elderly and causes increased homocysteine (Hcy) and methylmalonic acid (MMA) levels.
Bravenboer, N., Vaes, Bart L T, Vaes, B.L.T., Everts, V., Wilma T. Steegenga, Bravenboer, Nathalie, Steegenga, W.T., Lute, Carolien, Carolien Lute, de Groot, L.C.P.G.M., Müller, M.R., Henk J. Blom, de Groot, C.P.G.M., Muller, M., Dhonukshe-Rutten, R.A.M., de Groot, Lisette C P G M, Dhonukshe-Rutten, R.A., Bart L. T. Vaes, Teun J. de Vries, Blom, Henk J, Nathalie Bravenboer, Groot, L.C.P.G.M. de, de Vries, Teun J, Müller, Michael, Everts, Vincent, Rosalie A. Dhonukshe-Rutten, Michael Müller, de Vries, T.J., Lisette C. P. G. M. de Groot, Dhonukshe-Rutten, Rosalie A, Steegenga, Wilma T, Groot, C.P.G.M., de, Lute, C., Vries, T. J., Blom, H.J., Everts, V, Vries, T.J., de, Vincent Everts   +37 more
core   +1 more source

CDK12 mediates the inhibition effect of mechanical unloading on osteoblast proliferation by regulating RNAPII transcription activation

Bone & Joint Research
Aims: Mechanical stimuli are crucial in regulating normal osteoblast function to maintain bone homeostasis. Decreased osteoblast proliferation is one of the main causes of osteoporosis induced by mechanical unloading.
Lifang Hu, Wenjin Zhong, Linlin Wang, Shujing Liang, Yunxian Jia, Zixiang Wu, Jingran Shen, Jiajun Sun, Airong Qian   +8 more
doaj   +1 more source

THBS1+ Macrophages Exacerbate Modic Changes via SDC4‐Dependent Activation of NLRP3 Inflammasome

Advanced Science, EarlyView.
The illustration of THBS1+ macrophages exacerbate MCs via SDC4‐dependent activation of the NLRP3 inflammasome. THBS1+ macrophage subpopulation was identified in MCs through single‐cell RNA sequencing. C. acnes and its metabolites activate THBS1 expression in macrophages via the TLR signaling pathway.
Xiangxi Kong, Qize Xue, Xiaoan Wei, Jie Li, Bao Huang, Weishao Chen, Zimin Cai, Tao Yang, Chengjun Yao, Jiayan Jin, Bohan Cai, Xuyang Zhang, Junhui Liu, Haihao Wu, Jian Chen, Zhi Shan, Fengdong Zhao   +16 more
wiley   +1 more source

Deep Learning Network‐Tailored Microenvironment Matching of 4D Bioprinting Bioactive Scaffolds for Bone Regeneration

Advanced Science, EarlyView.
A DLN dataset was built to analyze MABS composition versus in vitro/in vivo osteogenesis and angiogenesis. An MLP neural network, taking BG morphological parameters as input, extracts bioactive features from these datasets. A rabbit tibial defect model then validates 4D‐printed MABS for adaptability and bone regeneration in critical defects.
Xiongjie Liang, Yuechi Zhang, Weifeng Hu, Shiyan Lv, Fan Jia, Yan Zhang, Feng Wu, Changjiang Yang, Guanqi Zhen, Jinglong Yan, Xu Cui, Wei Zhao, Guanghua Chen   +12 more
wiley   +1 more source

Impact of silk fibroin-based scaffold structures on human osteoblast MG63 cell attachment and proliferation [PDF]

, 2015
Aneesia Varkey,1,2 Elakkiya Venugopal,2 Ponjanani Sugumaran,2 Gopinathan Janarthanan,1 Mamatha M Pillai,2 Selvakumar Rajendran,2 Amitava Bhattacharyya1 1Advanced Textile and Polymer Research Laboratory, 2Tissue Engineering Laboratory, PSG Institute of ...
Venugopal E, Sugumaran P, Varkey A, Rajendran S, Bhattacharyya A, Janarthanan G, Pillai MM   +6 more
core  

Biomimetic Gradient Hydrogels Regulate Osteochondral Regeneration Microenvironment Remodeling via Spatiotemporal Programming Engineering

Advanced Science, EarlyView.
Electric field‑driven continuous gradient hydrogel GHZF4 achieves spatiotemporal growth factor release, modulates immune microenvironment, angiogenesis and osteochondral differentiation. It realizes cell‑free functional osteochondral repair in rat/rabbit models, offering a promising biomimetic strategy for gradient tissue regeneration.
Xiaolian Niu, Shengzhao Xiao, Di Huang, Xuesong Wang, Yanwei Cao, Xiaodan Sun, Nicholas Dunne, Xiaoming Li   +7 more
wiley   +1 more source

Extremely low-frequency electromagnetic fields facilitate both osteoblast and osteoclast activity through Wnt/β-catenin signaling in the zebrafish scale

Frontiers in Cell and Developmental Biology
Electromagnetic fields (EMFs) have received widespread attention as effective, noninvasive, and safe therapies across a range of clinical applications for bone disorders.
Jingjing Kobayashi-Sun, Jingjing Kobayashi-Sun, Isao Kobayashi, Makoto Kashima, Jun Hirayama, Makiko Kakikawa, Sotoshi Yamada, Sotoshi Yamada, Nobuo Suzuki   +8 more
doaj   +1 more source

Kaempferol Attenuates Spaceflight‐Associated Knee Cartilage Degradation by Targeting NOX4‐Mediated Mitochondrial Dysfunction

Advanced Science, EarlyView.
We have shown that both simulated and actual spaceflight contribute to cartilage degradation in the knees of mice. Using RNA sequencing and bioenergetic profiling, we identified NADPH oxidase 4 (NOX4) as a key factor driving these changes. Additionally, we found that kaempferol, a naturally occurring flavonoid that binds directly to NOX4, reduces ...
Yuesong Yin, Ruiling Xu, Meagan J. Makarczyk, Jia‐Jun Liu, Silvia Liu, Matthew Z. Shi, Roberta Di Carlo, Michael F. Almeida, Alex Garris, Sarah Day, Rebekah Sanchez‐Hodge, Jonathan C. Schisler, Aleeza H. Zilberman, Noah G. Allen, Angela J. Kubik, Elizabeth A. Blaber, Arnold Z. Olali, Wanqing Xie, Douglas C. Wallace, Christopher E. Mason, Peter G. Alexander, Giuseppe Intini, Afshin Beheshti, Hang Lin   +23 more
wiley   +1 more source

Involvement of autophagy in tantalum nanoparticle-induced osteoblast proliferation [PDF]

, 2017
Chengrong Kang,1,2 Limin Wei,1 Bin Song,1 Liangjiao Chen,3 Jia Liu,1 Bin Deng,4 Xuan Pan,2 Longquan Shao1 1Department of Stomatology, Nanfang Hospital, Southern Medical University, 2Department of Stomatology, The First Affiliated Hospital of Guangdong ...
Deng B, Pan X, Liu J, Song B, Shao L, Kang C, Chen L, Wei L   +7 more
core