1.Current trends in intraoperative neurophysiological monitoring among Asia–Pacific countries: an Asia–Pacific Spine Society survey
Hideki SHIGEMATSU ; Akimasa YASUDA ; Ronald TANGENTE ; Chris Yin Wei CHAN ; Ajoy Prasad SHETTY ; Jason Pui Yin CHEUNG ; Yong HAI ; Daisuke SAKAI ; Kyu-Jung CHO ; Chih-Wei CHEN ; Gabriel LIU ; I Gusti Lanang Ngurah Agung Artha WIGUNA ; Brian HSU ; Mun Keong KWAN
Asian Spine Journal 2024;18(6):813-821
Methods:
Spine surgeons of the Asia–Pacific Spine Society were asked to respond to a web-based survey on IONM. The questionnaire covered various aspects of IONM, including its common modality, Tc-MEP details, necessities for consistent use, and recommended modalities in major spine surgeries and representative surgical procedures.
Results:
Responses were received from 193 of 626 spine surgeons. Among these respondents, 177 used IONM routinely. Among these 177 respondents, 17 mainly used SEP, whereas the majority favored Tc-MEPs. Although a >50% decrease is the commonly used alarm point in Tc-MEP, half of the Tc-MEP users had no protocols planned for such scenarios. Moreover, half of the Tc-MEP users experienced complications, with bite injuries being the most common. Most respondents strongly recommended IONM in deformity surgery for pediatric and adult populations and tumor resection surgery for intramedullary spinal cord tumors. Conversely, IONM was the least recommended in lumbar spinal canal stenosis surgery.
Conclusions
Spine surgeons in Asia–Pacific countries favored IONM use, indicating widespread routine utilization. Tc-MEP was the predominant modality for IONM, followed by SEPs.
2.Current trends in intraoperative neurophysiological monitoring among Asia–Pacific countries: an Asia–Pacific Spine Society survey
Hideki SHIGEMATSU ; Akimasa YASUDA ; Ronald TANGENTE ; Chris Yin Wei CHAN ; Ajoy Prasad SHETTY ; Jason Pui Yin CHEUNG ; Yong HAI ; Daisuke SAKAI ; Kyu-Jung CHO ; Chih-Wei CHEN ; Gabriel LIU ; I Gusti Lanang Ngurah Agung Artha WIGUNA ; Brian HSU ; Mun Keong KWAN
Asian Spine Journal 2024;18(6):813-821
Methods:
Spine surgeons of the Asia–Pacific Spine Society were asked to respond to a web-based survey on IONM. The questionnaire covered various aspects of IONM, including its common modality, Tc-MEP details, necessities for consistent use, and recommended modalities in major spine surgeries and representative surgical procedures.
Results:
Responses were received from 193 of 626 spine surgeons. Among these respondents, 177 used IONM routinely. Among these 177 respondents, 17 mainly used SEP, whereas the majority favored Tc-MEPs. Although a >50% decrease is the commonly used alarm point in Tc-MEP, half of the Tc-MEP users had no protocols planned for such scenarios. Moreover, half of the Tc-MEP users experienced complications, with bite injuries being the most common. Most respondents strongly recommended IONM in deformity surgery for pediatric and adult populations and tumor resection surgery for intramedullary spinal cord tumors. Conversely, IONM was the least recommended in lumbar spinal canal stenosis surgery.
Conclusions
Spine surgeons in Asia–Pacific countries favored IONM use, indicating widespread routine utilization. Tc-MEP was the predominant modality for IONM, followed by SEPs.
3.Current trends in intraoperative neurophysiological monitoring among Asia–Pacific countries: an Asia–Pacific Spine Society survey
Hideki SHIGEMATSU ; Akimasa YASUDA ; Ronald TANGENTE ; Chris Yin Wei CHAN ; Ajoy Prasad SHETTY ; Jason Pui Yin CHEUNG ; Yong HAI ; Daisuke SAKAI ; Kyu-Jung CHO ; Chih-Wei CHEN ; Gabriel LIU ; I Gusti Lanang Ngurah Agung Artha WIGUNA ; Brian HSU ; Mun Keong KWAN
Asian Spine Journal 2024;18(6):813-821
Methods:
Spine surgeons of the Asia–Pacific Spine Society were asked to respond to a web-based survey on IONM. The questionnaire covered various aspects of IONM, including its common modality, Tc-MEP details, necessities for consistent use, and recommended modalities in major spine surgeries and representative surgical procedures.
Results:
Responses were received from 193 of 626 spine surgeons. Among these respondents, 177 used IONM routinely. Among these 177 respondents, 17 mainly used SEP, whereas the majority favored Tc-MEPs. Although a >50% decrease is the commonly used alarm point in Tc-MEP, half of the Tc-MEP users had no protocols planned for such scenarios. Moreover, half of the Tc-MEP users experienced complications, with bite injuries being the most common. Most respondents strongly recommended IONM in deformity surgery for pediatric and adult populations and tumor resection surgery for intramedullary spinal cord tumors. Conversely, IONM was the least recommended in lumbar spinal canal stenosis surgery.
Conclusions
Spine surgeons in Asia–Pacific countries favored IONM use, indicating widespread routine utilization. Tc-MEP was the predominant modality for IONM, followed by SEPs.
4.Evaluation of the impact of prospective payment systems on cholecystectomy:A systematic review and meta-analysis
Yun ZHAO ; Ivan En-Howe TAN ; Vikneswary D/O A JAHNASEGAR ; Hui Min CHONG ; Yonghui CHEN ; Brian Kim POH GOH ; Marianne Kit HAR AU ; Ye Xin KOH
Annals of Hepato-Biliary-Pancreatic Surgery 2024;28(3):291-301
This systematic review and meta-analysis aimed to evaluate the impact of prospective payment systems (PPSs) on cholecystectomy.A comprehensive literature review was conducted, examining studies published until December 2023. The review process focused on identifying research across major databases that reported critical outcomes such as length of stay (LOS), mortality, complications, admissions, readmissions, and costs following PPS for cholecystectomy. The studies were specifically selected for their relevance to the impact of PPS or the transition from fee-for-service (FFS) to PPS. The study analyzed six papers, with three eligible for meta-analysis, to assess the impact of the shift from FFS to PPS in laparoscopic and open cholecystectomy procedures. Our findings indicated no significant changes in LOS and mortality rates following the transition from FFS to PPS. Complication rates varied and were influenced by the diagnosis-related group categorization and surgeon cost profiles under episode-based payment. There was a slight increase in admissions and readmissions, and mixed effects on hospital costs and financial margins, suggesting varied responses to PPS for cholecystectomy procedures. The impact of PPS on cholecystectomy is nuanced and varies across different aspects of healthcare delivery.Our findings indicate a need for adaptable, patient-centered PPS models that balance economic efficiency with high-quality patient care. The study emphasizes the importance of considering specific surgical procedures and patient demographics in healthcare payment reforms.
5.Postoperative neurocognitive disorders in ambulatory surgery: a narrative review
Junyong IN ; Brian CHEN ; Hansu BAE ; Sakura KINJO
Korean Journal of Anesthesiology 2024;77(5):493-502
Postoperative neurocognitive disorders (PoNCDs), such as postoperative delirium and cognitive dysfunction or decline can occur after surgery, especially in older patients. This significantly affects patient morbidity and surgical outcomes. Among various risk factors, recent studies have shown that preoperative frailty is associated with developing these conditions. Although the mechanisms underlying PoNCDs remain unclear, neuroinflammation appears to play an important role in their development. For the prevention and treatment of PoNCDs, medication modification, a balanced diet, and prehabilitation and rehabilitation programs have been suggested. The risk of developing PoNCDs is thought to be lower in ambulatory patients. However, owing to technological advancements, an increasing number of older and sicker patients are undergoing more complex surgeries and are often not closely monitored after discharge. Therefore, equal attention should be paid to all patient populations. This article presents an overview of PoNCDs and highlights issues of particular interest for ambulatory surgery.
6.Real-time SERS monitoring anticancer drug release along with SERS/MR imaging for pH-sensitive chemo-phototherapy.
Xueqin HUANG ; Bingbing SHENG ; Hemi TIAN ; Qiuxia CHEN ; Yingqi YANG ; Brian BUI ; Jiang PI ; Huaihong CAI ; Shanze CHEN ; Jianglin ZHANG ; Wei CHEN ; Haibo ZHOU ; Pinghua SUN
Acta Pharmaceutica Sinica B 2023;13(3):1303-1317
In situ and real-time monitoring of responsive drug release is critical for the assessment of pharmacodynamics in chemotherapy. In this study, a novel pH-responsive nanosystem is proposed for real-time monitoring of drug release and chemo-phototherapy by surface-enhanced Raman spectroscopy (SERS). The Fe3O4@Au@Ag nanoparticles (NPs) deposited graphene oxide (GO) nanocomposites with a high SERS activity and stability are synthesized and labeled with a Raman reporter 4-mercaptophenylboronic acid (4-MPBA) to form SERS probes (GO-Fe3O4@Au@Ag-MPBA). Furthermore, doxorubicin (DOX) is attached to SERS probes through a pH-responsive linker boronic ester (GO-Fe3O4@Au@Ag-MPBA-DOX), accompanying the 4-MPBA signal change in SERS. After the entry into tumor, the breakage of boronic ester in the acidic environment gives rise to the release of DOX and the recovery of 4-MPBA SERS signal. Thus, the DOX dynamic release can be monitored by the real-time changes of 4-MPBA SERS spectra. Additionally, the strong T2 magnetic resonance (MR) signal and NIR photothermal transduction efficiency of the nanocomposites make it available for MR imaging and photothermal therapy (PTT). Altogether, this GO-Fe3O4@Au@Ag-MPBA-DOX can simultaneously fulfill the synergistic combination of cancer cell targeting, pH-sensitive drug release, SERS-traceable detection and MR imaging, endowing it great potential for SERS/MR imaging-guided efficient chemo-phototherapy on cancer treatment.
7.Induction of Anxiety-Like Phenotypes by Knockdown of Cannabinoid Type-1 Receptors in the Amygdala of Marmosets.
Lin ZHU ; Di ZHENG ; Rui LI ; Chen-Jie SHEN ; Ruolan CAI ; Chenfei LYU ; Binliang TANG ; Hao SUN ; Xiaohui WANG ; Yu DING ; Bin XU ; Guoqiang JIA ; Xinjian LI ; Lixia GAO ; Xiao-Ming LI
Neuroscience Bulletin 2023;39(11):1669-1682
The amygdala is an important hub for regulating emotions and is involved in the pathophysiology of many mental diseases, such as depression and anxiety. Meanwhile, the endocannabinoid system plays a crucial role in regulating emotions and mainly functions through the cannabinoid type-1 receptor (CB1R), which is strongly expressed in the amygdala of non-human primates (NHPs). However, it remains largely unknown how the CB1Rs in the amygdala of NHPs regulate mental diseases. Here, we investigated the role of CB1R by knocking down the cannabinoid receptor 1 (CNR1) gene encoding CB1R in the amygdala of adult marmosets through regional delivery of AAV-SaCas9-gRNA. We found that CB1R knockdown in the amygdala induced anxiety-like behaviors, including disrupted night sleep, agitated psychomotor activity in new environments, and reduced social desire. Moreover, marmosets with CB1R-knockdown had up-regulated plasma cortisol levels. These results indicate that the knockdown of CB1Rs in the amygdala induces anxiety-like behaviors in marmosets, and this may be the mechanism underlying the regulation of anxiety by CB1Rs in the amygdala of NHPs.
Animals
;
Callithrix
;
Receptors, Cannabinoid
;
Anxiety
;
Amygdala
;
Cannabinoids
;
Phenotype
8.Erratum: Author correction to 'Real-time SERS monitoring anticancer drug release along with SERS/MR imaging for pH-sensitive chemo-phototherapy' Acta Pharm Sin B 13 (2023) 1303-1317.
Xueqin HUANG ; Bingbing SHENG ; Hemi TIAN ; Qiuxia CHEN ; Yingqi YANG ; Brian BUI ; Jiang PI ; Huaihong CAI ; Shanze CHEN ; Jianglin ZHANG ; Wei CHEN ; Haibo ZHOU ; Pinghua SUN
Acta Pharmaceutica Sinica B 2023;13(10):4338-4340
[This corrects the article DOI: 10.1016/j.apsb.2022.08.024.].
9.A Deep Mesencephalic Nucleus Circuit Regulates Licking Behavior.
Di ZHENG ; Jia-Yu FU ; Meng-Yu TANG ; Xiao-Dan YU ; Yi ZHU ; Chen-Jie SHEN ; Chun-Yue LI ; Shi-Ze XIE ; Shan LIN ; Minmin LUO ; Xiao-Ming LI
Neuroscience Bulletin 2022;38(6):565-575
Licking behavior is important for water intake. The deep mesencephalic nucleus (DpMe) has been implicated in instinctive behaviors. However, whether the DpMe is involved in licking behavior and the precise neural circuit behind this behavior remains unknown. Here, we found that the activity of the DpMe decreased during water intake. Inhibition of vesicular glutamate transporter 2-positive (VGLUT2+) neurons in the DpMe resulted in increased water intake. Somatostatin-expressing (SST+), but not protein kinase C-δ-expressing (PKC-δ+), GABAergic neurons in the central amygdala (CeA) preferentially innervated DpMe VGLUT2+ neurons. The SST+ neurons in the CeA projecting to the DpMe were activated at the onset of licking behavior. Activation of these CeA SST+ GABAergic neurons, but not PKC-δ+ GABAergic neurons, projecting to the DpMe was sufficient to induce licking behavior and promote water intake. These findings redefine the roles of the DpMe and reveal a novel CeASST-DpMeVGLUT2 circuit that regulates licking behavior and promotes water intake.
10.SCF E3 ubiquitin ligase targets the tumor suppressor ZNRF3 for ubiquitination and degradation.
Yanpeng CI ; Xiaoning LI ; Maorong CHEN ; Jiateng ZHONG ; Brian J NORTH ; Hiroyuki INUZUKA ; Xi HE ; Yu LI ; Jianping GUO ; Xiangpeng DAI
Protein & Cell 2018;9(10):879-889
Wnt signaling has emerged as a major regulator of tissue development by governing the self-renewal and maintenance of stem cells in most tissue types. As a key upstream regulator of the Wnt pathway, the transmembrane E3 ligase ZNRF3 has recently been established to play a role in negative regulation of Wnt signaling by targeting Frizzled (FZD) receptor for ubiquitination and degradation. However, the upstream regulation of ZNRF3, in particular the turnover of ZNRF3, is still unclear. Here we report that ZNRF3 is accumulated in the presence of proteasome inhibitor treatment independent of its E3-ubiquitin ligase activity. Furthermore, the Cullin 1-specific SCF complex containing β-TRCP has been identified to directly interact with and ubiquitinate ZNRF3 thereby regulating its protein stability. Similar with the degradation of β-catenin by β-TRCP, ZNRF3 is ubiquitinated by β-TRCP in both CKI-phosphorylation- and degron-dependent manners. Thus, our findings not only identify a novel substrate for β-TRCP oncogenic regulation, but also highlight the dual regulation of Wnt signaling by β-TRCP in a context-dependent manner where β-TRCP negatively regulates Wnt signaling by targeting β-catenin, and positively regulates Wnt signaling by targeting ZNRF3.
Cells, Cultured
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Humans
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Proteolysis
;
Ubiquitin-Protein Ligases
;
metabolism
;
Ubiquitination
;
beta-Transducin Repeat-Containing Proteins
;
metabolism

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