Osteopontin(OPN)is a multifunctional protein,widely distributed in a variety of cells,tissues,organs and body fluids.This protein has a classical RGD domain and can bind to a variety of integrins and CD44 receptors,thereby participating in various pathological processes in the body,such as infection,allergic reaction,autoimmune and tissue damage.Recently,many studies have revealed that OPN is highly expressed in the central nervous system(CNS)and plays different regulatory roles in CNS diseases,that is,OPN can play a pro-inflammatory role in some conditions to stimulate neurotoxicity,while it can play a neuroprotective role in other conditions.While there has been growing interest in the biological role of OPN in the CNS,a comprehensive review is currently lacking.The purpose of this paper is to provide an overview of the expression and function of OPN in the CNS,with a focus on microglia,astrocytes,and neurons.

The commonly used mechanical thrombectomy devices were introduced in terms of the working principle,advantages,disadvantages and clinical effects.The complications by mechanical thrombectomy devices used for thrombosis clearance were summarized,and the causes were analyzed and some countermeasures were put forward accordingly.It's pointed out mechanical thrombectomy devices would be improved in intelligence,automation,precision,individualization and remote control in the future.[Chinese Medical Equipment Journal,2025,46(8):79-85]

As a high-quality moxibustion material, Artemisia stolonifera has high economic value and research prospects. However, due to difficulties in seed germination, its wild germplasm resources are sparsely distributed in China. This study used young stem segments grown in the current year to investigate the effects of explant sterilization, different combinations and concentrations of plant growth regulators on the proliferation and rooting of adventitious shoots, with the aim of constructing an in vitro rapid propagation technology system for A. stolonifera. The results showed that the lowest contamination rate of 25.83% was achieved when sterilizing the stem segments by rinsing with running water for 30 min, soaking in 75% ethanol for 30 s, followed by a 5 min treatment with 0.1% HgCl_2, 10 min with 8% NaClO, and 10 min with 0.6% phytosaniline. There was no browning of the stem segments, and surface sterilization of the A. stolonifera stem segments was successfully achieved. In the induction culture phase, when the concentration of kinetin(KT) was 0.05 mg·L~(-1) and 6-benzylaminopurine(6-BA) was 0.05 mg·L~(-1), the adventitious shoot proliferation coefficient was 2.02, effectively promoting the proliferation and growth of A. stolonifera. In the rooting culture phase, 0.1 mg·L~(-1) 1-naphthaleneacetic acid(NAA) effectively induced A. stolonifera test-tube seedlings to root within a short period, achieving a rooting rate of 100%. The addition of a small amount of activated charcoal also promoted rooting and strengthened seedling growth. The survival rate of A. stolonifera seedlings transplanted into a substrate consisting of 90% nutrient soil and 10% perlite was 100%. This study established an efficient in vitro rapid propagation system for A. stolonifera, overcoming difficulties with seed germination, shortening the breeding cycle, and reducing production and planting costs. It provides technical support for the introduction, domestication, seedling propagation, germplasm conservation, and industrial development of A. stolonifera.
Artemisia/drug effects* ; Tissue Culture Techniques/methods* ; Plant Growth Regulators/pharmacology* ; Plant Stems/drug effects* ; Plant Shoots/drug effects*

The medicinal materials of Bawei Chenxiang Pills(BCPs) were extracted via three methods: reflux extraction by water, reflux extraction by 70% ethanol, and extraction by pure water following reflux extraction by 70% ethanol, yielding three extracts of ST, CT, and CST. The efficacy of ST(760 mg·kg~(-1)), CT(620 mg·kg~(-1)), and CST(1 040 mg·kg~(-1)) were evaluated by acute myocardial ischemia(AMI) and p-chlorophenylalanine(PCPA)-induced insomnia in mice, respectively. Western blot was further utilized to investigate their hypnosis mechanisms. The main chemical components of different extracts were identified by the UPLC-Q-Exactive-MS technique. The results showed that CT and CST significantly increased the ejection fraction(EF) and fractional shortening(FS) of myocardial infarction mice, reduced left ventricular internal dimension at end-diastole(LVIDd) and left ventricular internal dimension at end-systole(LVIDs). In contrast, ST did not exhibit significant effects on these parameters. In the insomnia model, CT significantly reduced sleep latency and prolonged sleep duration, whereas ST only prolonged sleep duration without shortening sleep latency. CST showed no significant effects on either sleep latency or sleep duration. Additionally, both CT and ST upregulated glutamic acid decarboxylase 67(GAD67) protein expression in brain tissue. A total of 15 main chemical components were identified from CT, including 2-(2-phenylethyl) chromone and 6-methoxy-2-(2-phenylethyl) chromone. Six chemical components including chebulidic acid were identified from ST. The results suggested that chromones and terpenes were potential anti-myocardial ischemia drugs of BCPs, and tannin and phenolic acids were potential hypnosis drugs. This study enriches the pharmacological and chemical research of BCPs, providing a basis and reference for their secondary development, quality standard improvement, and clinical application.
Animals ; Drugs, Chinese Herbal/isolation & purification* ; Mice ; Male ; Sleep Initiation and Maintenance Disorders/physiopathology* ; Humans ; Myocardial Infarction/drug therapy* ; Myocardial Ischemia/drug therapy*

Osteopontin(OPN)is a multifunctional protein,widely distributed in a variety of cells,tissues,organs and body fluids.This protein has a classical RGD domain and can bind to a variety of integrins and CD44 receptors,thereby participating in various pathological processes in the body,such as infection,allergic reaction,autoimmune and tissue damage.Recently,many studies have revealed that OPN is highly expressed in the central nervous system(CNS)and plays different regulatory roles in CNS diseases,that is,OPN can play a pro-inflammatory role in some conditions to stimulate neurotoxicity,while it can play a neuroprotective role in other conditions.While there has been growing interest in the biological role of OPN in the CNS,a comprehensive review is currently lacking.The purpose of this paper is to provide an overview of the expression and function of OPN in the CNS,with a focus on microglia,astrocytes,and neurons.

The commonly used mechanical thrombectomy devices were introduced in terms of the working principle,advantages,disadvantages and clinical effects.The complications by mechanical thrombectomy devices used for thrombosis clearance were summarized,and the causes were analyzed and some countermeasures were put forward accordingly.It's pointed out mechanical thrombectomy devices would be improved in intelligence,automation,precision,individualization and remote control in the future.[Chinese Medical Equipment Journal,2025,46(8):79-85]

Objective To observe the effectiveness of fluorescence labeling-based assay bundle intervention in the prevention and control of multidrug-resistant organism(MDRO)infection.Methods Patients who were detected MDRO in a hospital from January to December 2022 were selected as the research subjects.MDRO monitoring data and implementation status of prevention and control measures were collected.Fluorescence labeling assay was adopted to monitor the cleaning and disinfection effectiveness of the surrounding object surface of the bed units.Based on the bundled prevention and control measures as well as management mode of the pre-intervention group,the post-intervention group implemented enhanced rectification measures for the problems found by the pre-interven-tion group.Changes in relevant indicators between January-June 2022(before intervention)and July-December 2022(after intervention)were compared.Results There were 136 MDRO-infected patients in the pre-intervention group,208 MDRO strains were detected and 10 healthcare-associated infection(HAI)occurred.There were 128 MDRO-infected patients in the post-intervention group,198 MDRO strains were detected and 9 HAI occurred.Af-ter intervention,the total detection rates of methicillin-resistant Staphylococcus aureus(MRSA),carbapenem-re-sistant Acinetobacter baumannii(CRAB),and total MDRO from patients decreased significantly compared to before intervention(all P＜0.05).After intervention,the detection rates of MRSA,carbapenem-resistant Pseudomonas aeruginosa(CRPA),CRAB,and total MDRO from the surrounding object surface were all lower than those before intervention(all P＜0.05).The detection rate of MDRO from surrounding object surface before intervention was 34.52％,which showed a decreased trend after intervention(P＜0.05).The clearance rate of fluorescent labeled markers before intervention was 41.84％,which showed an upward trend after implementing intervention measures(from July to December),and increased to 85.00％at the end of intervention(November-December).The comp-liance rates of issuing isolation medical orders,placing isolation labels,using medical supplies exclusively,and cor-rectly handling medical waste after intervention have all increased compared to before intervention(all P＜0.05).Conclusion Adopting fluorescence labeling-based assay bundle intervention can effectively improve the effectiveness of MDRO infection prevention and control.

ObjectiveAngle-closure glaucoma (ACG) is one of the major eye-blinding diseases. To diagnose ACG, it is crucial to examine the anterior chamber angle. Current diagnostic tools include slit lamp gonioscopy, water gonioscopy, ultrasound biomicroscopy (UBM), and anterior segment optical coherence tomography (AS-OCT). Slit lamp and water gonioscopy allow convenient observation of the anterior chamber angle, but pose risks of invasive operation and eye infections. UBM can accurately measure the structure of the anterior chamber angle. However, it is complex to operate and unsuitable for patients, who have undergone trauma or ocular surgery. Although AS-OCT provides detailed images, it is costly. The aim of this study is to explore a non-invasive, non-destructive optical reflection tomography (ORT) technique. This technique can achieve low-cost three-dimensional imaging and full-field anterior chamber angle measurement of the porcine eye. MethodsThe experiment involved assembling an optical reflection tomography system, which included a complementary metal oxide semiconductor (CMOS) camera, a telecentric system, a stepper motor, and a white light source, achieving a spatial resolution of approximately 8.5 μm. The process required positioning the porcine eye at the center of the field of the imaging system and rotating it around its central axis using a stepper motor. Reflection projection images were captured at each angle with an exposure time of 1.0 ms and an interval of 2°. The collected reflection-projection data were processed using a filtered reflection tomography algorithm, generating a series of two-dimensional slice data. These slices essentially represented cross-sectional views of the three-dimensional structural image, and were reconstructed into a complete three-dimensional structural image. Based on the reconstructed three-dimensional structural image of the porcine eye, the anterior chamber angles at different positions were measured, and a distribution map of these angles was drawn. Simultaneously, the ORT measurements were compared with the standard results obtained from optical coherence tomography (OCT) to assess the accuracy of ORT measurements. ResultsIn this study, we successfully obtained the reflection projection data of a porcine eye using ORT technology, reconstructed its three-dimensional structural image, and measured the anterior chamber angle, generating the corresponding distribution map. To better distinguish the different structural parts of porcine eye, the three-dimensional structural image was marked with blue, green, and yellow dashed lines from the outer to the inner layers. The area between the blue and green dashed lines corresponded to the sclera. The area between the green and yellow dashed lines corresponded to the iris. The area inside the yellow dashed line corresponded to the pupil. The three-dimensional structural image clearly revealed the key anatomical features of the porcine eye. It was able to measure the anterior chamber angle at different positions. Additionally, the anterior chamber angle measurements of the porcine eye using ORT were compared with the measurements obtained using a TEL320C1 type OCT system, showing an average deviation of 0.51° and a mean square error MSE of 0.317. ConclusionORT is a non-invasive, non-destructive, low-cost, and high-resolution imaging technique capable of achieving three-dimensional structural imaging and full-field anterior chamber angle measurement of a porcine eye. This technology offers a new perspective for the diagnosis of angle-closure glaucoma and is significant for the screening, diagnosis, and monitoring of eye diseases, potentially benefiting clinics and small hospitals in remote areas in the future.

ObjectiveTo evaluate the intervention effect of Ruyi Zhenbaowan （RYZBW） on secondary brain injury and central pain in mice with hemorrhagic stroke and to explore its pharmacological mechanism of repairing the neurovascular unit from the perspective of neuroinflammation. MethodA mouse model of central post-stroke pain （CPSP） was established by microinjecting type Ⅳ collagenase into the ventroposterior thalamic nucleus. The day of model establishment was recorded as D1， and the mice were divided into Sham operation group （Sham）， model group （CPSP）， low （RYZBW-L）， medium （RYZBW-M）， and high （RYZBW-H） dose groups of RYZBW， and positive drug pregabalin （PGB） group. On the 4th day （D4） after model establishment， gavage administration was performed twice daily. The Sham and CPSP groups received an equal volume of normal saline， while the RYZBW-L， RYZBW-M， and RYZBW-H groups received RYZBW at 1.214， 1.821， 2.428 g·kg^-1， respectively， and the PGB group received PGB at 0.046 g·kg^-1. Mechanical hyperalgesia was assessed before model establishment （D0）， on the 3rd day （D3）， and after the first gavage on D4. Nerve damage was evaluated after the second gavage on D1 and D4. On D4， peripheral blood was collected for routine blood tests， and the thalamus was collected for immune-inflammation microarray analysis. In independent samples， quantitative analysis was performed on the localization of immune-inflammatory factors， receptors， and cells via immunofluorescence staining， enzyme-linked immunosorbent assay （ELISA）， and Western blot analysis. ResultCompared with the Sham group， CPSP mice showed significant secondary nerve injury， central pain after stroke （P<0.05，P<0.01）， increased red blood cell distribution width （RDW） in peripheral blood （P<0.05）， and decreased hemoglobin （HGB） concentration （P<0.05）. Immune-inflammation microarray analysis showed that CC chemokine ligand 2 （CCL2） in the CPSP thalamus was significantly increased compared to the Sham group （P<0.01）， while CX3C chemokine ligand 1 （CX3CL1） was significantly decreased （P<0.05）. These results were confirmed by ELISA and immunofluorescence staining. Western blot analysis indicated that the protein expression of CX3CR1， the receptor for CX3CL1， was significantly decreased in the CPSP group compared to the Sham group （P<0.01）. Immunofluorescence staining revealed that the number of Ly6C⁺CX3CR1⁺ non-classical monocytes in the CPSP group did not change significantly， while the number of classical monocytes （CX3CR1^-Ly6C⁺） significantly increased （P<0.01）. The expression of CX3CR1 in microglia was significantly increased in the CPSP group （P<0.01）. Compared with the CPSP group， RYZBW improved neurological deficits （R²=0.367 9） and central pain symptoms （R²=0.501 9） in a dose-dependent manner. RYZBW-H significantly improved peripheral blood RDW and HGB （P<0.05）. Immune-inflammation microarray analysis and ELISA results showed that RYZBW-H significantly inhibited CCL2 expression （P<0.01） and increased CX3CL1 expression （P<0.05）. Western blot results indicated that the protein expression of CX3CR1 in the RYZBW-L and RYZBW-H groups was significantly increased （P<0.05）. Immunofluorescence staining demonstrated that RYZBW increased the overall expression of CX3CR1 in a dose-dependent manner （R²=0.619 6）， inhibited the expression of CX3CR1 on microglia， and decreased both the number （R²=0.494 5） and soma area （R²=0.571 7） of microglia compared with the CPSP group. Additionally， RYZBW increased the infiltration of CX3CR1⁺Ly6C⁺ non-classical monocytes in a dose-dependent manner （R²=0.635 3） and effectively inhibited the infiltration of Ly6C⁺CX3CR1^- classical monocytes （R²=0.483 6）. ConclusionRYZBW can effectively alleviate secondary injury and central pain in CPSP mice， and its mechanism involves regulating the CX3CL1-CX3CR1 ligand-receptor interaction， inhibiting microglial infiltration and activation， promoting non-classical monocyte infiltration for vascular repair， and suppressing the infiltration of classical monocytes for inflammatory phagocytosis.