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Article ; Online: A Rate-Dependent Cell Microinjection Model Based on Membrane Theory.

Kang, Shengzheng / Song, Zhicheng / Yang, Xiaolong / Li, Yao / Wu, Hongtao / Li, Tao

2023 Volume 145, Issue 9

Abstract: As an effective method to deliver external materials into biological cells, microinjection has been widely applied in the biomedical field. However, the knowledge of cell mechanical property is still inadequate, which greatly limits the efficiency and ... ...

Abstract	As an effective method to deliver external materials into biological cells, microinjection has been widely applied in the biomedical field. However, the knowledge of cell mechanical property is still inadequate, which greatly limits the efficiency and success rate of injection. Thus, a new rate-dependent mechanical model based on membrane theory is proposed for the first time. In this model, an analytical equilibrium equation between the injection force and cell deformation is established by considering the speed effect of microinjection. Different from the traditional membrane-theory-based model, the elastic coefficient of the constitutive material in the proposed model is modified as a function of the injection velocity and acceleration, effectively simulating the influence of speeds on the mechanical responses and providing a more generalized and practical model. Using this model, other mechanical responses at different speeds can be also accurately predicted, including the distribution of membrane tension and stress and the deformed shape. To verify the validity of the model, numerical simulations and experiments were carried out. The results show that the proposed model can match the real mechanical responses well at different injection speeds up to 2 mm/s. The model presented in this paper will be promising in the application of automatic batch cell microinjection with high efficiency.
MeSH term(s)	Microinjections/methods ; Models, Biological ; Mechanical Phenomena
Language	English
Publishing date	2023-05-09
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	243094-0
ISSN	1528-8951 ; 0148-0731
ISSN (online)	1528-8951
ISSN	0148-0731
DOI	10.1115/1.4062422
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Article: Assessing pripherally inserted central catheter tip location in multiple postures: A case report.

He, Xining / Wu, Shengzheng / Zhang, Fan / Ge, Wenhao / Wu, Dudu / Chen, Mei / Li, Keyan / Ren, Xiuyun

Asia-Pacific journal of oncology nursing

2023 Volume 10, Issue 6, Page(s) 100238

Abstract: This report presents a case involving a 21-year-old male patient with acute promyelocytic leukemia, where the peripherally inserted central catheter (PICC) tip location was diagnosed differently using ultrasound and computed tomography. The PICC was ... ...

Abstract	This report presents a case involving a 21-year-old male patient with acute promyelocytic leukemia, where the peripherally inserted central catheter (PICC) tip location was diagnosed differently using ultrasound and computed tomography. The PICC was inserted into the left upper arm via the basilic vein. Echocardiography performed in the left lateral recumbent position suggested the PICC tip to be in the right atrium, deepest at the level of the tricuspid annulus. However, trans-catheter contrast-enhanced echocardiography, performed with a different posture involving left shoulder abduction and slight external rotation, revealed the tip to be at the cavo-atrial junction. Additionally, chest computed tomography, conducted in the supine position with raised arms, indicated the tip to be located at the upper one-third of the superior vena cava. These contradictory diagnoses can be attributed to the use of different body postures during the assessments. Considering the clinical efficacy and safety, it is crucial to fully consider the influence of multiple postures on PICC tip location during placement and determination. We recommend incorporating at least two opposite extreme daily postures to assess the nearest and farthest positions of the tip, ensuring effective and safe PICC placement and reducing the risk of complications.
Language	English
Publishing date	2023-04-18
Publishing country	United States
Document type	Case Reports
ZDB-ID	2984639-0
ISSN	2349-6673 ; 2347-5625
ISSN (online)	2349-6673
ISSN	2347-5625
DOI	10.1016/j.apjon.2023.100238
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Article ; Online: Colonic mucin-2 attenuates acute necrotizing pancreatitis in rats by modulating intestinal homeostasis.

Huang, Zehua / Wu, Huimin / Fan, Junjie / Mei, Qixiang / Fu, Yang / Yin, Nuoming / Xu, Binqiang / Luo, Shengzheng / Li, Baiwen / Ni, Jianbo / Huang, Chunlan / Hu, Junjie / Zeng, Yue

FASEB journal : official publication of the Federation of American Societies for Experimental Biology

2023 Volume 37, Issue 7, Page(s) e22994

Abstract: Mucin-2 (MUC2) secreted by goblet cells participates in the intestinal barrier, but its mechanism in acute necrotizing pancreatitis (ANP) remains unclear. In acute pancreatitis (AP) patients, the functions of goblet cells (MUC2, FCGBP, CLCA1, and TFF3) ... ...

Abstract	Mucin-2 (MUC2) secreted by goblet cells participates in the intestinal barrier, but its mechanism in acute necrotizing pancreatitis (ANP) remains unclear. In acute pancreatitis (AP) patients, the functions of goblet cells (MUC2, FCGBP, CLCA1, and TFF3) decreased, and MUC2 was negatively correlated with AP severity. ANP rats treated with pilocarpine (PILO) (PILO+ANP rats) to deplete MUC2 showed more serious pancreatic and colonic injuries, goblet cell dysfunction, gut dysbiosis, and bacterial translocation than those of ANP rats. GC-MS analysis of feces showed that PILO+ANP rats had lower levels of butyric acid, isobutyric acid, isovaleric acid, and hexanoic acid than those of ANP rats. The expression of MUC2 was associated with colonic injury and gut dysbiosis. All these phenomena could be relieved, and goblet cell functions were also partially reversed by MUC2 supplementation in ANP rats. TNF-α-treated colonoids had exacerbated goblet cell dysfunction. MUC2 expression was negatively correlated with the levels of pro-inflammatory cytokines (IL-1β and IL-6) (p < .05) and positively related to the expression of tight junction proteins (Claudin 1, Occludin, and ZO1) (p < .05). Downregulating MUC2 by siRNA increased the levels of the pro-inflammatory cytokines in colonoids. MUC2 might maintain intestinal homeostasis to alleviate ANP.
MeSH term(s)	Rats ; Animals ; Mucin-2/genetics ; Mucin-2/metabolism ; Pancreatitis, Acute Necrotizing/chemically induced ; Pancreatitis, Acute Necrotizing/drug therapy ; Pancreatitis, Acute Necrotizing/metabolism ; Dysbiosis/metabolism ; Acute Disease ; Cytokines/metabolism ; Homeostasis ; Intestinal Mucosa/metabolism
Chemical Substances	Mucin-2 ; Cytokines
Language	English
Publishing date	2023-05-29
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	639186-2
ISSN	1530-6860 ; 0892-6638
ISSN (online)	1530-6860
ISSN	0892-6638
DOI	10.1096/fj.202201998R
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Article ; Online: The effectiveness of portable ultrasound-guided resuscitative endovascular balloon occlusion of the aorta for stopping iliac artery hemorrhage during first aid pre-hospital: a randomized control animal trial.

Huang, Yuqing / Kou, Haiyan / Kong, Yuhao / Shan, Xuexia / Wu, Shengzheng / Chen, Xianghui / Lin, Xingxi / Zhang, Liye / Lv, Faqin / Li, Zhihui

European journal of trauma and emergency surgery : official publication of the European Trauma Society

2022 Volume 48, Issue 4, Page(s) 2841–2848

Abstract: Purpose: This study aimed at to comparing the effectiveness of portable ultrasound guided REBOA vs. traditional manual extracorporeal compression in stopping iliac artery hemostasis.: Methods: Twelve swine were included in this study (treatment group ...

Abstract	Purpose: This study aimed at to comparing the effectiveness of portable ultrasound guided REBOA vs. traditional manual extracorporeal compression in stopping iliac artery hemostasis. Methods: Twelve swine were included in this study (treatment group vs. control group, 6:6). A biopsy device was used to create an iliac artery rupture and hemorrhage in each swine. After 30 s of bleeding, the treatment group received REBOA under the guidance of ultrasound, whereas the control group received traditional manual extracorporeal compression. General physiological conditions were recorded at 0 s (baseline, T1), 30 s (initiation of therapies to stop bleeding, T2), 10 min (T3) and 30 min (T4) after bleeding. Intraperitoneal and retroperitoneal hemorrhage and specimens of iliac artery were collected after all swine were euthanized. Results: One swine was excluded because of accidental death not related to the experiment; thus, 11 swine were analyzed in this study. The general physiological characteristics of the two groups showed no difference at T1. Hemorrhagic shock occurred in both groups. After the hemostatic procedure was performed, systolic pressure, diastolic pressure and heart rate first increased significantly between T2 and T3, and then became stable between T3 and T4; these indicators in the control group deteriorated over time. The total blood loss in the treatment group (1245.23 ± 190.07 g) was much significantly less than that in the control group (2605.63 ± 291.67 g) with p < 0.001. Conclusions: Performing REBOA under the guidance of portable ultrasound is an effective way to stop bleeding. It suggests a potential alternative method for iliac artery hemostasis in the pre-hospital setting.
MeSH term(s)	Animals ; Aorta ; Balloon Occlusion/methods ; Disease Models, Animal ; Endovascular Procedures/methods ; First Aid ; Hemodynamics ; Hemorrhage/etiology ; Hemorrhage/therapy ; Hemostasis ; Hospitals ; Iliac Artery ; Resuscitation/methods ; Shock, Hemorrhagic/therapy ; Swine ; Ultrasonography, Interventional/adverse effects
Language	English
Publishing date	2022-04-12
Publishing country	Germany
Document type	Journal Article
ZDB-ID	2275480-5
ISSN	1863-9941 ; 1863-9933
ISSN (online)	1863-9941
ISSN	1863-9933
DOI	10.1007/s00068-022-01895-1
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Zs.MO 607: Show issues

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Book ; Online: Cell Biomechanical Modeling Based on Membrane Theory with Considering Speed Effect of Microinjection

Kang, Shengzheng / Song, Zhicheng / Yang, Xiaolong / Li, Yao / Wu, Hongtao / Li, Tao

2022

Abstract: As an effective method to deliver external materials into biological cells, microinjection has been widely applied in the biomedical field. However, the cognition of cell mechanical property is still inadequate, which greatly limits the efficiency and ... ...

Abstract	As an effective method to deliver external materials into biological cells, microinjection has been widely applied in the biomedical field. However, the cognition of cell mechanical property is still inadequate, which greatly limits the efficiency and success rate of injection. Thus, a new rate-dependent mechanical model based on membrane theory is proposed for the first time. In this model, an analytical equilibrium equation between the injection force and cell deformation is established by considering the speed effect of microinjection. Different from the traditional membrane-theory-based model, the elastic coefficient of the constitutive material in the proposed model is modified as a function of the injection velocity and acceleration, effectively simulating the influence of speeds on the mechanical responses and providing a more generalized and practical model. Using this model, other mechanical responses at different speeds can be also accurately predicted, including the distribution of membrane tension and stress and the deformed shape. To verify the validity of the model, numerical simulations and experiments are carried out. The results show that the proposed model can match the real mechanical responses well at different injection speeds. Comment: 10 pages, 12 figures, submitted to IEEE TMech;
Keywords	Computer Science - Robotics
Subject code	612
Publishing date	2022-11-28
Publishing country	us
Document type	Book ; Online
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Article ; Online: Microcystin-LR induced oxidative stress, inﬂammation, and apoptosis in alveolar type II epithelial cells of ICR mice in vitro.

Zhong, Shengzheng / Liu, Ying / Wang, Fang / Wu, Zaiwei / Zhao, Sujuan

Toxicon : official journal of the International Society on Toxinology

2019 Volume 174, Page(s) 19–25

Abstract: Previous studies have shown that microcystin-LR (MC-LR) produced by toxic cyanobacterial blooms could inflict damage to the lung. However, the mechanisms underlying MC-induced pulmonary toxicity are not fully described. In this study, the primary' fetal ... ...

Abstract	Previous studies have shown that microcystin-LR (MC-LR) produced by toxic cyanobacterial blooms could inflict damage to the lung. However, the mechanisms underlying MC-induced pulmonary toxicity are not fully described. In this study, the primary' fetal alveolar type II epithelial cells (AEC II) from ICR mice, which are involved in formation of bioactive component of pulmonary epithelium and secretion of pulmonary surfactants, were exposed to MC-LR at different concentrations (0, 0.625, 1.25, 2.5, 5, 10, 20 μg/mL) for different time (12, 24, 36 h). Results showed that the viabilities of AEC II exposed to 10 and 20 μg MC-LR/mL were significantly decreased compared with the control group. Furthermore, MC-LR exposure resulted in overproduction of reactive oxygen species (ROS) and induced a signiﬁcant reduction in superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px). Expressions of apoptosis-related proteins including bax, cyt-c, and caspase-9 were significantly up-regulated by exposure to 2.5, 5, 10, or 20 μg MC-LR/mL. When exposed to 5, 10, or 20 μg MC-LR/mL, expressions of proteins involved in inflammatory, p-65 and iNOS were significantly greater than those of the controls. In conclusion, inﬂammation and apoptosis might be responsible for MC-LR-induced pulmonary injury.
MeSH term(s)	Animals ; Apoptosis ; Catalase/metabolism ; Cyanobacteria/metabolism ; Epithelial Cells/metabolism ; Glutathione/metabolism ; Glutathione Peroxidase/metabolism ; Glutathione Transferase/metabolism ; Inflammation/metabolism ; Liver/metabolism ; Malondialdehyde/metabolism ; Mice ; Mice, Inbred ICR ; Microcystins/toxicity ; Oxidative Stress/physiology ; Reactive Oxygen Species/metabolism ; Superoxide Dismutase/metabolism ; Toxicity Tests
Chemical Substances	Microcystins ; Reactive Oxygen Species ; Malondialdehyde (4Y8F71G49Q) ; Catalase (EC 1.11.1.6) ; Glutathione Peroxidase (EC 1.11.1.9) ; Superoxide Dismutase (EC 1.15.1.1) ; Glutathione Transferase (EC 2.5.1.18) ; cyanoginosin LR (EQ8332842Y) ; Glutathione (GAN16C9B8O)
Language	English
Publishing date	2019-12-23
Publishing country	England
Document type	Journal Article
ZDB-ID	204479-1
ISSN	1879-3150 ; 0041-0101
ISSN (online)	1879-3150
ISSN	0041-0101
DOI	10.1016/j.toxicon.2019.12.152
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Article ; Online: Inverse association between periumbilical fat and longevity mediated by complement C3 and cardiac structure.

Fu, Shihui / Yao, Yao / Wu, Shengzheng / Deng, Juelin / Lv, Faqin / Zhao, Yali

Aging

2020 Volume 12, Issue 22, Page(s) 23296–23305

Abstract: Although abdominal obesity plays a fundamental role in the onset of immune and inflammatory reactions leading to cardiac abnormalities and premature mortality, the potential association between periumbilical fat and longevity mediated by the antibody- ... ...

Abstract	Although abdominal obesity plays a fundamental role in the onset of immune and inflammatory reactions leading to cardiac abnormalities and premature mortality, the potential association between periumbilical fat and longevity mediated by the antibody-complement system and/or cardiac structure and function remains unclear. To address this issue, we collected biochemical and morphological data from 419 centenarians and 491 non-centenarian oldest-old individuals from the China Hainan Centenarian Cohort Study. Centenarians had lower waist circumference (WC), periumbilical fat thickness (PFT), serum complement C3 level, right atrium end-systolic diameter (RAESD), left atrium end-systolic diameter (LAESD), and left ventricular end-diastolic diameter (LVEDD) than non-centenarians (P<0.05 for all comparisons). WC, PFT, complement C3 levels, RAESD, LAESD, and LVEDD were inversely associated with centenarians (P<0.05 for all variables). Complement C3 level, LAESD, and LVEDD were positively associated with PFT and WC (P<0.05 for all variables). RAESD was positively associated with WC and complement C3 level (P<0.05 for both variables). Centenarians had less periumbilical fat, a weaker complement system, and smaller cardiac structure than non-centenarians. Importantly, periumbilical fat was inversely associated with longevity mediated by complement C3 and cardiac structure. This study suggests that successful aging can be promoted by increased efforts to prevent abdominal obesity.
MeSH term(s)	Adiposity ; Age Factors ; Aged, 80 and over ; Biomarkers/blood ; China ; Complement C3/analysis ; Databases, Factual ; Echocardiography ; Female ; Health Status ; Healthy Aging ; Heart/diagnostic imaging ; Humans ; Longevity ; Male ; Obesity, Abdominal/diagnosis ; Obesity, Abdominal/physiopathology ; Obesity, Abdominal/prevention & control ; Predictive Value of Tests
Chemical Substances	Biomarkers ; C3 protein, human ; Complement C3
Language	English
Publishing date	2020-11-18
Publishing country	United States
Document type	Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1945-4589
ISSN (online)	1945-4589
DOI	10.18632/aging.104113
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Article ; Online: Robot-assisted Teleultrasound Assessment of Cardiopulmonary Function on a Patient with Confirmed COVID-19 in a Cabin Hospital

Shengzheng Wu, MD, Keyan Li, MD, Ruizhong Ye, MD, Yuehua Lu, MD, Jufen Xu, MD, Linfei Xiong, MD, Ailin Cui, MD, Yaqing Li, MD, Chengzhong Peng, MD, Faqin Lv, MD

Advanced Ultrasound in Diagnosis and Therapy, Vol 4, Iss 2, Pp 128-

2020 Volume 130

Abstract: Real-time ultrasound imaging has been used for the evaluation of pulmonary abnormalities and other complications during the outbreak of COVID-19. However, conventional ultrasound examination requires operators to conduct scanning either in the ... ...

Abstract	Real-time ultrasound imaging has been used for the evaluation of pulmonary abnormalities and other complications during the outbreak of COVID-19. However, conventional ultrasound examination requires operators to conduct scanning either in the examination room or patient ward, which may increase the potential infective risk. Tele-operated ultrasound robotics can provide a unique technique for doctors to remotely scan patients. During the COVID-19 pandemic, we attempted to apply a 5G network-based scanning robot to conduct remote ultrasound examination on COVID-19 patients and to explore the feasibility of this technique for teleultrasound diagnosis and consultation during critical infectious situations.
Keywords	\|robot-assisted\|teleultrasound\|covid-19\|pulmonary\|cardiac\|ultrasound ; Medical technology ; R855-855.5 ; Medicine ; R
Language	English
Publishing date	2020-06-01T00:00:00Z
Publisher	Editorial Office of Advanced Ultrasound in Diagnosis and Therapy
Document type	Article ; Online
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Book ; Online: A Fractional-Order Normalized Bouc-Wen Model for Piezoelectric Hysteresis Nonlinearity

Kang, Shengzheng / Wu, Hongtao / Li, Yao / Yang, Xiaolong / Yao, Jiafeng

2020

Abstract: This paper presents a new fractional-order normalized Bouc-Wen (BW) (FONBW) model to describe the asymmetric and rate-dependent hysteresis nonlinearity of piezoelectric actuators (PEAs). In view of the fact that the classical BW (CBW) model is only ... ...

Abstract	This paper presents a new fractional-order normalized Bouc-Wen (BW) (FONBW) model to describe the asymmetric and rate-dependent hysteresis nonlinearity of piezoelectric actuators (PEAs). In view of the fact that the classical BW (CBW) model is only efficient for the symmetric and rate-independent hysteresis description, the FONBW model is devoted to characterizing the asymmetric and rate-dependent behaviors of the hysteresis in PEAs by adopting an Nth-order polynomial input function and two fractional operators, respectively. Different from the traditional modified BW models, the proposed FONBW model also eliminates the redundancy of parameters in the CBW model via the normalization processing. By this way, the developed FONBW model has a relatively simple mathematic expression with fewer parameters to simultaneously characterize the asymmetric and rate-dependent hysteresis behaviors of PEAs. Model parameters are identified by the self-adaptive differential evolution algorithm. To validate the effectiveness of the proposed model, a series of model verification and inverse-multiplicative-structure-based feedforward control experiments are carried out on a PEA system. Results show that the proposed model is superior to the CBW model and traditional modified BW model in modeling accuracy and hysteresis compensation. Comment: 9 pages, 10 figures, submitted to TMech; 10 pages, 11 figures, add two subsections in Section IV; modify Tables I and III, and Figures 9 and 10
Keywords	Computer Science - Robotics ; Electrical Engineering and Systems Science - Signal Processing
Subject code	510
Publishing date	2020-03-10
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: [Biomechanical comparative analysis of screw fixation and cortical endo-button fixation in Latarjet procedure for anterior dislocation of shoulder joint].

Liang, Daqiang / Kuai, Shengzheng / Li, Ying / Qiu, Zhihe / Li, Sheng / Wu, Bing / Zhong, Mingjin / Li, Hao / Liu, Haifeng / Lu, Wei

Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery

2020 Volume 34, Issue 5, Page(s) 602–607

Abstract: Objective: To clarify the value of the cortical endo-button as an internal fixator in Latarjet procedure through biomechanical analysis.: Methods: Ten pairs of shoulder joints from 6-7 months old male pigs were selected. Each pair was randomly ... ...

Abstract	Objective: To clarify the value of the cortical endo-button as an internal fixator in Latarjet procedure through biomechanical analysis. Methods: Ten pairs of shoulder joints from 6-7 months old male pigs were selected. Each pair was randomly divided into screw group and endo-button group. A 25% glenoid defect model was created, and the porcine infraspinatus tendon and its associated bone were used to simulate conjoint tendon and coracoid process in human body. The bone grafts were fixed with two 3.5 mm screws and double cortical endo-buttons with high-strength sutures in screw group and endo-button group, respectively. The prepared glenoid defect model was fixed on a biomechanical test bench and optical markers were fixed on the glenoid and the bone block, respectively. Then fatigue test was performed to observe whether the graft or internal fixator would failed. During the test, the standard deviations of the relative displacement between the graft and the glenoid of two groups were measured by optical motion measure system for comparison. Finally the maximum failure load comparison was conducted and the maximum failure loads of the two groups were measured and compared. Results: There was no tendon tear, bone fracture, and other graft or internal fixation failure in the two groups during the fatigue test. The standard deviation of the relative displacement of the screw group was (0.007 87±0.001 44) mm, and that of the endo-button group was (0.034 88±0.011 10) mm, showing significant difference between the two groups ( Conclusion: Although the endo-button fixation fails to achieve the same strong fixation stability as the screw fixation, its fixation stability can achieve the clinical requirements. The two fixation methods can provide similar fixation strength when being used in Latarjet procedure.
MeSH term(s)	Animals ; Biomechanical Phenomena ; Bone Screws ; Humans ; Infant ; Male ; Scapula ; Shoulder Dislocation ; Shoulder Joint ; Swine ; Tendons
Language	Chinese
Publishing date	2020-05-14
Publishing country	China
Document type	Journal Article
ZDB-ID	1420212-8
ISSN	1002-1892
ISSN	1002-1892
DOI	10.7507/1002-1892.201909124
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