24 research outputs found
sj-docx-2-imj-10.1177_10815589231184215 – Supplemental material for Efficacy and safety of medications for osteoporosis in kidney transplant recipients or patients with chronic kidney disease: a meta-analysis
Supplemental material, sj-docx-2-imj-10.1177_10815589231184215 for Efficacy and safety of medications for osteoporosis in kidney transplant recipients or patients with chronic kidney disease: a meta-analysis by Yunji Leng, Xian Yu, Yi Yang and Yifan Xia in Journal of Investigative Medicine</p
sj-docx-3-imj-10.1177_10815589231184215 – Supplemental material for Efficacy and safety of medications for osteoporosis in kidney transplant recipients or patients with chronic kidney disease: a meta-analysis
Supplemental material, sj-docx-3-imj-10.1177_10815589231184215 for Efficacy and safety of medications for osteoporosis in kidney transplant recipients or patients with chronic kidney disease: a meta-analysis by Yunji Leng, Xian Yu, Yi Yang and Yifan Xia in Journal of Investigative Medicine</p
sj-docx-1-imj-10.1177_10815589231184215 – Supplemental material for Efficacy and safety of medications for osteoporosis in kidney transplant recipients or patients with chronic kidney disease: a meta-analysis
Supplemental material, sj-docx-1-imj-10.1177_10815589231184215 for Efficacy and safety of medications for osteoporosis in kidney transplant recipients or patients with chronic kidney disease: a meta-analysis by Yunji Leng, Xian Yu, Yi Yang and Yifan Xia in Journal of Investigative Medicine</p
Image_3_Direct Current Stimulation Disrupts Endothelial Glycocalyx and Tight Junctions of the Blood-Brain Barrier in vitro.tif
Transcranial direct current stimulation (tDCS) is a non-invasive physical therapy to treat many psychiatric disorders and to enhance memory and cognition in healthy individuals. Our recent studies showed that tDCS with the proper dosage and duration can transiently enhance the permeability (P) of the blood-brain barrier (BBB) in rat brain to various sized solutes. Based on the in vivo permeability data, a transport model for the paracellular pathway of the BBB also predicted that tDCS can transiently disrupt the endothelial glycocalyx (EG) and the tight junction between endothelial cells. To confirm these predictions and to investigate the structural mechanisms by which tDCS modulates P of the BBB, we directly quantified the EG and tight junctions of in vitro BBB models after DCS treatment. Human cerebral microvascular endothelial cells (hCMECs) and mouse brain microvascular endothelial cells (bEnd3) were cultured on the Transwell filter with 3 μm pores to generate in vitro BBBs. After confluence, 0.1–1 mA/cm2 DCS was applied for 5 and 10 min. TEER and P to dextran-70k of the in vitro BBB were measured, HS (heparan sulfate) and hyaluronic acid (HA) of EG was immuno-stained and quantified, as well as the tight junction ZO-1. We found disrupted EG and ZO-1 when P to dextran-70k was increased and TEER was decreased by the DCS. To further investigate the cellular signaling mechanism of DCS on the BBB permeability, we pretreated the in vitro BBB with a nitric oxide synthase (NOS) inhibitor, L-NMMA. L-NMMA diminished the effect of DCS on the BBB permeability by protecting the EG and reinforcing tight junctions. These in vitro results conform to the in vivo observations and confirm the model prediction that DCS can disrupt the EG and tight junction of the BBB. Nevertheless, the in vivo effects of DCS are transient which backup its safety in the clinical application. In conclusion, our current study directly elucidates the structural and signaling mechanisms by which DCS modulates the BBB permeability.</p
Image_2_Direct Current Stimulation Disrupts Endothelial Glycocalyx and Tight Junctions of the Blood-Brain Barrier in vitro.tif
Transcranial direct current stimulation (tDCS) is a non-invasive physical therapy to treat many psychiatric disorders and to enhance memory and cognition in healthy individuals. Our recent studies showed that tDCS with the proper dosage and duration can transiently enhance the permeability (P) of the blood-brain barrier (BBB) in rat brain to various sized solutes. Based on the in vivo permeability data, a transport model for the paracellular pathway of the BBB also predicted that tDCS can transiently disrupt the endothelial glycocalyx (EG) and the tight junction between endothelial cells. To confirm these predictions and to investigate the structural mechanisms by which tDCS modulates P of the BBB, we directly quantified the EG and tight junctions of in vitro BBB models after DCS treatment. Human cerebral microvascular endothelial cells (hCMECs) and mouse brain microvascular endothelial cells (bEnd3) were cultured on the Transwell filter with 3 μm pores to generate in vitro BBBs. After confluence, 0.1–1 mA/cm2 DCS was applied for 5 and 10 min. TEER and P to dextran-70k of the in vitro BBB were measured, HS (heparan sulfate) and hyaluronic acid (HA) of EG was immuno-stained and quantified, as well as the tight junction ZO-1. We found disrupted EG and ZO-1 when P to dextran-70k was increased and TEER was decreased by the DCS. To further investigate the cellular signaling mechanism of DCS on the BBB permeability, we pretreated the in vitro BBB with a nitric oxide synthase (NOS) inhibitor, L-NMMA. L-NMMA diminished the effect of DCS on the BBB permeability by protecting the EG and reinforcing tight junctions. These in vitro results conform to the in vivo observations and confirm the model prediction that DCS can disrupt the EG and tight junction of the BBB. Nevertheless, the in vivo effects of DCS are transient which backup its safety in the clinical application. In conclusion, our current study directly elucidates the structural and signaling mechanisms by which DCS modulates the BBB permeability.</p
Image_4_Direct Current Stimulation Disrupts Endothelial Glycocalyx and Tight Junctions of the Blood-Brain Barrier in vitro.tif
Transcranial direct current stimulation (tDCS) is a non-invasive physical therapy to treat many psychiatric disorders and to enhance memory and cognition in healthy individuals. Our recent studies showed that tDCS with the proper dosage and duration can transiently enhance the permeability (P) of the blood-brain barrier (BBB) in rat brain to various sized solutes. Based on the in vivo permeability data, a transport model for the paracellular pathway of the BBB also predicted that tDCS can transiently disrupt the endothelial glycocalyx (EG) and the tight junction between endothelial cells. To confirm these predictions and to investigate the structural mechanisms by which tDCS modulates P of the BBB, we directly quantified the EG and tight junctions of in vitro BBB models after DCS treatment. Human cerebral microvascular endothelial cells (hCMECs) and mouse brain microvascular endothelial cells (bEnd3) were cultured on the Transwell filter with 3 μm pores to generate in vitro BBBs. After confluence, 0.1–1 mA/cm2 DCS was applied for 5 and 10 min. TEER and P to dextran-70k of the in vitro BBB were measured, HS (heparan sulfate) and hyaluronic acid (HA) of EG was immuno-stained and quantified, as well as the tight junction ZO-1. We found disrupted EG and ZO-1 when P to dextran-70k was increased and TEER was decreased by the DCS. To further investigate the cellular signaling mechanism of DCS on the BBB permeability, we pretreated the in vitro BBB with a nitric oxide synthase (NOS) inhibitor, L-NMMA. L-NMMA diminished the effect of DCS on the BBB permeability by protecting the EG and reinforcing tight junctions. These in vitro results conform to the in vivo observations and confirm the model prediction that DCS can disrupt the EG and tight junction of the BBB. Nevertheless, the in vivo effects of DCS are transient which backup its safety in the clinical application. In conclusion, our current study directly elucidates the structural and signaling mechanisms by which DCS modulates the BBB permeability.</p
Image_1_Direct Current Stimulation Disrupts Endothelial Glycocalyx and Tight Junctions of the Blood-Brain Barrier in vitro.tif
Transcranial direct current stimulation (tDCS) is a non-invasive physical therapy to treat many psychiatric disorders and to enhance memory and cognition in healthy individuals. Our recent studies showed that tDCS with the proper dosage and duration can transiently enhance the permeability (P) of the blood-brain barrier (BBB) in rat brain to various sized solutes. Based on the in vivo permeability data, a transport model for the paracellular pathway of the BBB also predicted that tDCS can transiently disrupt the endothelial glycocalyx (EG) and the tight junction between endothelial cells. To confirm these predictions and to investigate the structural mechanisms by which tDCS modulates P of the BBB, we directly quantified the EG and tight junctions of in vitro BBB models after DCS treatment. Human cerebral microvascular endothelial cells (hCMECs) and mouse brain microvascular endothelial cells (bEnd3) were cultured on the Transwell filter with 3 μm pores to generate in vitro BBBs. After confluence, 0.1–1 mA/cm2 DCS was applied for 5 and 10 min. TEER and P to dextran-70k of the in vitro BBB were measured, HS (heparan sulfate) and hyaluronic acid (HA) of EG was immuno-stained and quantified, as well as the tight junction ZO-1. We found disrupted EG and ZO-1 when P to dextran-70k was increased and TEER was decreased by the DCS. To further investigate the cellular signaling mechanism of DCS on the BBB permeability, we pretreated the in vitro BBB with a nitric oxide synthase (NOS) inhibitor, L-NMMA. L-NMMA diminished the effect of DCS on the BBB permeability by protecting the EG and reinforcing tight junctions. These in vitro results conform to the in vivo observations and confirm the model prediction that DCS can disrupt the EG and tight junction of the BBB. Nevertheless, the in vivo effects of DCS are transient which backup its safety in the clinical application. In conclusion, our current study directly elucidates the structural and signaling mechanisms by which DCS modulates the BBB permeability.</p
Self-Healing, Thermadapt Triple-Shape Memory Ionomer Vitrimer for Shape Memory Triboelectric Nanogenerator
Benefiting
from the associative exchange reaction, vitrimers could
be deformed to various shapes while maintaining the integrity of the
network, thus being regarded as promising candidates for shape memory
polymers. However, it is still a challenge to design the highly desired
smart electronic devices with triple and multishape memory performances
through a facile method. Here, a novel dual-cross-linked poly(acrylonitrile-co-butyl acrylate-co-hydroxyethyl methacrylate-co-zinc methacrylate) (Zn-PABHM) copolymer was developed
via a facile and one-pot free radical polymerization strategy. Ionic
cross-linking, the transcarbamoylation reaction, and glass transition
were used to fix the permanent shape and two temporary shapes of the
obtained ionomer vitrimer, respectively. The thermomechanical and
stress relaxation performances of Zn-PABHM vitrimer can be customized
by tuning the proportion of the chemical cross-linking and physical
cross-linking knots. Furthermore, the Zn-PABHM was employed to construct
a shape memory triboelectric nanogenerator, which demonstrates distinctive
performance and tunable electrical outputs (37.4–96.0 V) due
to variable contact areas enabled by triple shape memory effects.
Consequently, the triple-shape memory ionomer vitrimer obtained via
a facile and one-pot synthetic strategy has great potential in smart
multifunctional electronic devices
Self-Healing, Thermadapt Triple-Shape Memory Ionomer Vitrimer for Shape Memory Triboelectric Nanogenerator
Benefiting
from the associative exchange reaction, vitrimers could
be deformed to various shapes while maintaining the integrity of the
network, thus being regarded as promising candidates for shape memory
polymers. However, it is still a challenge to design the highly desired
smart electronic devices with triple and multishape memory performances
through a facile method. Here, a novel dual-cross-linked poly(acrylonitrile-co-butyl acrylate-co-hydroxyethyl methacrylate-co-zinc methacrylate) (Zn-PABHM) copolymer was developed
via a facile and one-pot free radical polymerization strategy. Ionic
cross-linking, the transcarbamoylation reaction, and glass transition
were used to fix the permanent shape and two temporary shapes of the
obtained ionomer vitrimer, respectively. The thermomechanical and
stress relaxation performances of Zn-PABHM vitrimer can be customized
by tuning the proportion of the chemical cross-linking and physical
cross-linking knots. Furthermore, the Zn-PABHM was employed to construct
a shape memory triboelectric nanogenerator, which demonstrates distinctive
performance and tunable electrical outputs (37.4–96.0 V) due
to variable contact areas enabled by triple shape memory effects.
Consequently, the triple-shape memory ionomer vitrimer obtained via
a facile and one-pot synthetic strategy has great potential in smart
multifunctional electronic devices
Ultrastretchable High-Conductivity MXene-Based Organohydrogels for Human Health Monitoring and Machine-Learning-Assisted Recognition
Conductive
hydrogels as promising candidates of wearable electronics
have attracted considerable interest in health monitoring, multifunctional
electronic skins, and human–machine interfaces. However, to
simultaneously achieve excellent electrical properties, superior stretchability,
and a low detection threshold of conductive hydrogels remains an extreme
challenge. Herein, an ultrastretchable high-conductivity MXene-based
organohydrogel (M-OH) is developed for human health monitoring and
machine-learning-assisted object recognition, which is fabricated
based on a Ti3C2Tx MXene/lithium salt (LS)/poly(acrylamide) (PAM)/poly(vinyl alcohol)
(PVA) hydrogel through a facile immersion strategy in a glycerol/water
binary solvent. The fabricated M-OH demonstrates remarkable stretchability
(2000%) and high conductivity (4.5 S/m) due to the strong interaction
between MXene and the dual-network PVA/PAM hydrogel matrix and the
incorporation between MXene and LS, respectively. Meanwhile, M-OH
as a wearable sensor enables human health monitoring with high sensitivity
and a low detection limit (12 Pa). Furthermore, based on pressure
mapping image recognition technology, an 8 × 8 pixelated M-OH-based
sensing array can accurately identify different objects with a high
accuracy of 97.54% under the assistance of a deep learning neural
network (DNN). This work demonstrates excellent comprehensive performances
of the ultrastretchable high-conductive M-OH in health monitoring
and object recognition, which would further explore extensive potential
application prospects in personal healthcare, human–machine
interfaces, and artificial intelligence
