1.Design and application of a chest belt-type vibration expectorator.
Yan XU ; Chengcheng HE ; Wenzhe LI ; Dechang CHEN ; Siwen PAN
Chinese Critical Care Medicine 2025;37(5):490-493
Disruption of normal secretion or mucociliary clearance can impair airway defense mechanisms and lung function, and increase the risk of infection. Airway clearance techniques are recommended as part of a comprehensive treatment plan for patients. Among these, vibratory expectoration is an important method of airway clearance, which loosens and liquefies mucus and metabolites on the surface of the respiratory tract through chest wall oscillation, promoting ciliary movement to facilitate sputum expulsion. However, commonly used handheld vibrating head devices and vest-type vibration expectorators have several limitations in clinical practice, such as inconvenience of operation, limited treatment time, poor adaptability, and difficulty in disinfection. To address these issues, the research team from the department of critical care medicine at Ruijin Hospital, Shanghai Jiao Tong University, has designed a novel belt-type vibration expectorator, which has been granted a national utility model patent (Patent No.: ZL 2023 2 1610983.1). The device is mainly composed of a chest strap assembly, a sputum clearance component, and a fixed shoulder strap component. Several pockets are placed on the outer surface of the chest strap, with corresponding inner-side openings that allow the percussion head of the percussive expectorator placed inside the pocket to make contact with the patient's chest wall. Each pocket has markings indicating the percussion position, enabling the placement of the percussive expectorator according to the location of infection, thereby achieving multi-point, precise percussive vibration expectoration in different body positions. On the inner side of the chest strap, there are diagrams illustrating postural drainage, providing guidance on the body positions patients should assume based on the location of infection. The hook-and-loop fasteners on both sides of the chest strap can be wrapped around and secured according to the patient's body shape, ensuring that the sputum clearance components adhere tightly to the chest wall, allowing the vibrations generated by percussion to be effectively transmitted to the patient's airways. Additionally, to prevent the chest strap from slipping due to changes in the patient's position, a Y-shaped fixing strap can be selectively attached to the chest strap for further stabilization. This innovation not only simplifies the operation process, improves convenience and flexibility of use, but also supports the principle of "disinfection after each use by one person," which helps to reduce the risk of nosocomial infections and improve the efficiency of patients' respiratory rehabilitation.
Humans
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Vibration
;
Equipment Design
;
Chest Wall Oscillation/instrumentation*
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Sputum
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Expectorants
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Mucociliary Clearance
2.Research progress in the inhibition of calcium oxalate stone formation by plant extracts
Weifeng LIU ; Wenzhe CHEN ; Guohua ZENG
Chinese Journal of Urology 2024;45(5):405-408
Kidney stones is the most common urinary system disease, among which calcium oxalate stones are the most common. The pharmacological treatment of calcium oxalate stones currently in use is associated with low compliance and a high incidence of adverse reactions. In recent years, plant extracts have demonstrated considerable potential in inhibiting renal calcium oxalate stones. This article introduces the role of plant extracts, including polysaccharides, polyphenols, alkaloids, flavonoids and organic acids, in the inhibition of calcium oxalate stones. It also provides a theoretical basis for the clinical prevention and treatment of calcium oxalate stones.
3.A case report with anti-IgLON family member 5 antibody-related encephalopathy
Yong PENG ; Cancan MA ; Lin ZHU ; Beilei CHEN ; Mengmei YIN ; Jian WU ; Long YU ; Wenzhe HOU
Journal of Clinical Medicine in Practice 2024;28(2):55-59
This study reported a 50-year-old female patient who was diagnosed with anti-IgLON family member 5 (anti-IgLON5) antibody-related encephalopathy, presented with cognitive and sleep disorders, autonomic dysfunction and seizures, positive serum IgLON5 antibody but negative cerebrospinal fluid IgLON5 antibody, negative human leukocyte antigen (HLA) by genetic testing, and was diagnosed as anti-IgLON5 antibody-related encephalopathy. After hospital admission, the patient was given intravenous methylprednisolone combined with immunoglobulin immunotherapy, donepezil for improvement of cognition, sodium valproate and oxcarbazepine for prevention and treatment of epileptic seizures, and finally her symptoms improved significantly.
4.Anti-PD-L1 antibody enhances curative effect of cryoablation via antibody-dependent cell-mediated cytotoxicity mediating PD-L1highCD11b+ cells elimination in hepatocellular carcinoma.
Jizhou TAN ; Ting LIU ; Wenzhe FAN ; Jialiang WEI ; Bowen ZHU ; Yafang LIU ; Lingwei LIU ; Xiaokai ZHANG ; Songling CHEN ; Haibiao LIN ; Yuanqing ZHANG ; Jiaping LI
Acta Pharmaceutica Sinica B 2023;13(2):632-647
Cryoablation (CRA) and microwave ablation (MWA) are two main local treatments for hepatocellular carcinoma (HCC). However, which one is more curative and suitable for combining with immunotherapy is still controversial. Herein, CRA induced higher tumoral PD-L1 expression and more T cells infiltration, but less PD-L1highCD11b+ myeloid cells infiltration than MWA in HCC. Furthermore, CRA had better curative effect than MWA for anti-PD-L1 combination therapy in mouse models. Mechanistically, anti-PD-L1 antibody facilitated infiltration of CD8+ T cells by enhancing the secretion of CXCL9 from cDC1 cells after CRA therapy. On the other hand, anti-PD-L1 antibody promoted the infiltration of NK cells to eliminate PD-L1highCD11b+ myeloid cells by antibody-dependent cell-mediated cytotoxicity (ADCC) effect after CRA therapy. Both aspects relieved the immunosuppressive microenvironment after CRA therapy. Notably, the wild-type PD-L1 Avelumab (Bavencio), compared to the mutant PD-L1 atezolizumab (Tecentriq), was better at inducing the ADCC effect to target PD-L1highCD11b+ myeloid cells. Collectively, our study uncovered the novel insights that CRA showed superior curative effect than MWA in combining with anti-PD-L1 antibody by strengthening CTL/NK cell immune responses, which provided a strong rationale for combining CRA and PD-L1 blockade in the clinical treatment for HCC.
5.A latent class analysis of feeding practices among preschoolers’ parents and its correlations with parental depression status
Xiaoxue WEI ; Ruxing WU ; Jian WANG ; Jinjin CHEN ; Xianqing TANG ; Wenzhe HUA ; Runan CHEN ; Daqiao ZHU
Chinese Journal of Behavioral Medicine and Brain Science 2023;32(2):152-158
Objective:To explore the latent classes of parental feeding behaviors in preschool children, and to examine the relationship between potential types of parental feeding behaviors and parental depression status.Methods:From May to July 2021, parents of preschoolers from eight kindergartens in Shanghai were recruited and investigated.A paper-based questionnaire consisting of the Chinese preschooler’s caregivers’ feeding behavior scale (CPCFBS) and the center for epidemiological studies depression scale (CESD-10) was employed.Finally, a total of 1 006 valid questionnaires were retrieved.Mplus 8.0 and SPSS 26.0 were used for statistical analysis.The latent class analysis was used to identify subgroups of parents based on their feeding practices.Multinomial Logistic regression was used to examine the relevant influencing factors.Results:The feeding behaviors of parental of preschool children could be divided into four potential categories: " high responsiveness and high non-responsiveness type" (24.55%), " low responsiveness and high non-responsiveness type" (27.44%), " high responsiveness and low non-responsiveness type" (28.33%) and " low responsiveness and low non-responsiveness type" (19.68%). The parents with depression status were less likely to be categorized as " high responsiveness and low non-responsiveness type" ( OR=0.386, 95% CI: 0.218-0.684). The parents with older children were more likely to be categorized as " low responsiveness and low non-responsiveness type" ( OR=1.318, 95% CI: 1.039-1.672). Conclusion:The feeding practices of parents of preschool children can be categorized into four latent classes.The parents with depression status are more likely to adopt non-responsive feeding practice than responsive feeding practice.Actively paying attention to and improving the depression status of parents may help the feeder to adopt scientific feeding behavior.
6.Modified all-arthroscopic reconstruction of medial patellofemoral ligament for the treatment of recurrent patellar dislocation
Mingjin ZHONG ; Jiaming CUI ; Zirong HUANG ; Yuyin CAI ; Wenzhe FENG ; Kang CHEN ; Kan OUYANG ; Lei YANG ; Daping WANG ; Manyi WANG ; Weimin ZHU
Chinese Journal of Trauma 2023;39(8):695-702
Objective:To evaluate the clinical efficacy of modified all-arthroscopic reconstruction of medial patella femoral ligament (MPFL) for the treatment of recurrent patellar dislocation.Methods:A retrospective case series study was conducted to analyze the clinical data of 38 patients (46 knees) with recurrent patellar dislocation, who were treated at First Affiliated Hospital of Shenzhen University from January 2017 to January 2020. The patients included 12 males (12 knees) and 26 females (34 knees), aged 14-40 years [(24.6±5.4)years]. All patients underwent the modified all-arthroscopic MPFL reconstruction procedure. The femoral tunnel locations were assessed by 3D-CT immediately after surgery. The MRI was performed at 6 and 12 months after operation to assess the healing morphology of the reconstructed MPFL. The Lysholm score and Kujala score were used to assess the knee function before operation, at 6 months after operation, at 12 months after operation and at the last follow-up. The time to return to sports as well as complications were observed.Results:All patients were followed up for 26-48 months [(32.4±8.6)months]. Postoperative 3D-CT examination showed that the femoral tunnels were located in the groove area of the medial epicondyle of the femur and the adductor tubercle. At 6 and 12 months after operation, MRI T2 images showed that the reconstructed MPFL had a low signal and well tensioned ligament tissue, indicating that the MPFL was healed well. The Lysholm scores at 6 and 12 months postoperatively and at the last follow-up were (81.1±12.0)points, (91.2±3.8)points, and (92.2±9.8)points, respectively, being significantly higher than the preoperative (52.4±10.6)points (all P<0.01). The Kujala scores at 6 and 12 months postoperatively and at the last follow-up were (85.4±3.9)points, (91.4±3.6)points, and (93.1±8.5)points, respectively, being significantly higher than the preoperative (55.2±6.8)points (all P<0.01). Compared with 6 months postoperatively, the Lysholm score and Kujala score were significantly improved at 12 months postoperatively and at the last follow-up (all P<0.05). All patients returned to sports, with the time to return to sports for 3-12 months [(8.7±2.3)months] after operation. One patient had poor wound healing but was healed after dressing changes. No wound infection, nerve injury, joint stiffness, patella re-dislocation or other complications occurred. Conclusion:For recurrent patellar dislocation, the modified all-arthroscopic MPFL reconstruction has advantages of accurate bone tunnel positioning, good ligament healing, good function recovery, early return to sports, and less postoperative complications.
7.Research updates of functional nanomaterials in the prevention and treatment of renal calcium oxalate stones
Wenzhe CHEN ; Hongxing LIU ; Guohua ZENG
Chinese Journal of Urology 2023;44(4):313-316
Although great progress has been made in the treatment of renal calcium oxalate stones, the incidence and recurrence rate are still high. Functional nanomaterials refer to nanomaterials with specific functions after physical or chemical action.Their role in the treatment of renal calcium oxalate stones has been widely recognized in recent years. Functional nano-materials can be divided into nano-enzymes, nano-drugs and nano-carriers according to their functions. Nano-enzymes and nano-drugs can prevent and treat calcium oxalate kidney calculi by using their physical and chemical properties or drugs. Nano-carriers can treat kidney stones by delivery of the drugs. The purpose of this paper is to describe the application of functional nanomaterials in the prevention and treatment of renal calcium oxalate stones, to summarize the mechanism of inhibiting the formation of renal calcium oxalate stones and the direction of clinical treatment in the future.
8.Effects of naringin on the proliferation and differentiation of osteoblasts co -cultured with T cells under simulated microgravity
Jianxing CHEN ; Wenzhe YIN ; Qifeng SUN ; Sen ZHOU ; Yalong ZHANG ; Yi WANG
China Pharmacy 2022;33(19):2333-2337
OBJECTIVE To explore the effects of naringin on the proliferation and differentiation of osteoblasts in T cell - osteoblast co -culture system under simulated microgravity . METHODS This experiment was setting normal gravity control group , normal gravity naringin group ,simulated microgravity control group and simulated microgravity naringin group .In the control group,T cells were co -cultured with osteoblasts under normal gravity or simulated microgravity conditions . In the naringin group , 1×10-5 mol/L naringin solution was added additionally on the basis of control group .The morphology of osteoblasts was observed under the microscope . The proliferation rate of osteoblasts was detected by CCK -8 method. The alkaline phosphatase (ALP)activity was detected by ALP kit . mRNA relative expressions of Runt related transcription factor 2(Runx2)and interleukin -6(IL-6)were detected by real -time fluorescence quantitative polymerase chain reaction . The relative expression of Runx 2 and IL -6 protein were detected by Western blot . RESULTS Compared with normal gravity control group ,the density of osteoblasts in the simulated microgravity control group decreased ,only a small number of cells were aggregated ,and the cell morphology was mostly round ; compared with the simulated microgravity control group ,the osteoblasts in the simulated microgravity naringin group formed spindle or polygonal ,plump in shape ,and clustered in groups of fish . Compared with normal gravity control group ,the proliferation rate of osteoblasts ,ALP activity ,relative expressions of Runx 2 mRNA and protein in the normal gravity naringin group were significantly increased ,while the relative expressions of IL -6 mRNA and protein were significantly decreased (P< 0.05);the proliferation rate of osteoblasts ,ALP activity ,relative expressions of Runx 2 mRNA and protein in the simulated microgravity control group were significantly decreased ,while relative expressions of IL -6 mRNA and protein were significantly increased(P<0.05). Compared with the simulated microgravity control group ,the proliferation rate of osteoblasts ,ALP activity , relative expressions of Runx 2 mRNA and protein in the simulated microgravity naringin group were significantly increased ,while relative expressions of IL -6 mRNA and protein were significantly decreased (P<0.05). CONCLUSIONS In the T cell -osteoblast co-culture system ,simulated microgravity can inhibit the proliferation and differentiation of osteoblasts ;naringin can improve the proliferation and differentiation ability of osteoblasts under this condition, and its mechanism of action is related to the decrease of IL -6 level and the increase of Runx 2 level.
9.Role of blood pressure on stroke-related mortality: a 45-year follow-up study in China.
Shengshu WANG ; Shanshan YANG ; Wangping JIA ; Ke HAN ; Yang SONG ; Jing ZENG ; Wenzhe CAO ; Shaohua LIU ; Shimin CHEN ; Zhiqiang LI ; Xuehang LI ; Penggang TAI ; Fuyin KOU ; Yao HE ; Miao LIU
Chinese Medical Journal 2022;135(4):419-425
BACKGROUND:
Hypertension is associated with stroke-related mortality. However, the long-term association of blood pressure (BP) and the risk of stroke-related mortality and the influence path of BP on stroke-related death remain unknown. The current study aimed to estimate the long-term causal associations between BP and stroke-related mortality and the potential mediating and moderated mediating model of the associations.
METHODS:
This is a 45-year follow-up cohort study and a total of 1696 subjects were enrolled in 1976 and 1081 participants died by the latest follow-up in 2020. COX proportional hazard model was used to explore the associations of stroke-related death with baseline systolic blood pressure (SBP)/diastolic blood pressure (DBP) categories and BP changes from 1976 to 1994. The mediating and moderated mediating effects were performed to detect the possible influencing path from BP to stroke-related deaths. E value was calculated in the sensitivity analysis.
RESULTS:
Among 1696 participants, the average age was 44.38 ± 6.10 years, and 1124 were men (66.3%). After a 45-year follow-up, a total of 201 (11.9%) stroke-related deaths occurred. After the adjustment, the COX proportional hazard model showed that among the participants with SBP ≥ 160 mmHg or DBP ≥ 100 mmHg in 1976, the risk of stroke-related death increased by 217.5% (hazard ratio [HR] = 3.175, 95% confidence interval [CI]: 2.297-4.388), and the adjusted HRs were higher in male participants. Among the participants with hypertension in 1976 and 1994, the risk of stroke-related death increased by 110.4% (HR = 2.104, 95% CI: 1.632-2.713), and the adjusted HRs of the BP changes were higher in male participants. Body mass index (BMI) significantly mediated the association of SBP and stroke-related deaths and this mediating effect was moderated by gender.
CONCLUSIONS
In a 45-year follow-up, high BP and persistent hypertension are associated with stroke-related death, and these associations were even more pronounced in male participants. The paths of association are mediated by BMI and moderated by gender.
Adult
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Blood Pressure/physiology*
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China/epidemiology*
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Follow-Up Studies
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Humans
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Hypertension
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Male
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Middle Aged
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Risk Factors
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Stroke
10.Differential diagnosis of high altitude pulmonary edema and COVID-19 with computed tomography feature.
Wenzhe LI ; Kai LI ; Nan ZHANG ; Gaofeng CHEN ; Wenjun LI ; Jun TANG ; Fang YUAN
Journal of Biomedical Engineering 2020;37(6):1031-1036
To investigate the computed tomography (CT) characteristics and differential diagnosis of high altitude pulmonary edema (HAPE) and COVID-19, CT findings of 52 cases of HAPE confirmed in Medical Station of Sanshili Barracks, PLA 950 Hospital from May 1, 2020 to May 30, 2020 were collected retrospectively. The size, number, location, distribution, density and morphology of the pulmonary lesions of these CT data were analyzed and compared with some already existed COVID-19 CT images which come from two files, "Radiological diagnosis of COVID-19: expert recommendation from the Chinese Society of Radiology (First edition)" and "A rapid advice guideline for the diagnosis and treatment of 2019 novel corona-virus (2019-nCoV) infected pneumonia (standard version)". The simple or multiple ground-glass opacity (GGO) lesions are located both in the HAPE and COVID-19 at the early stage, but only the thickening of interlobular septa, called "crazy paving pattern" belongs to COVID-19. At the next period, some increased cloudy shadows are located in HAPE, while lesions of COVID-19 are more likely to develop parallel to the direction of the pleura, and some of the lesions show the bronchial inflation. At the most serious stage, both the shadows in HAPE and COVID-19 become white, but the lesions of HAPE in the right lung are more serious than that of left lung. In summary, some cloudy shadows are the feature of HAPE CT image, and "crazy paving pattern" and "pleural parallel sign" belong to the COVID-19 CT, which can be used for differential diagnosis.
Altitude
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COVID-19/diagnostic imaging*
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China
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Diagnosis, Differential
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Humans
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Lung/diagnostic imaging*
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Pulmonary Edema/diagnostic imaging*
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Retrospective Studies
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Tomography, X-Ray Computed


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