As a new type of model organism， zebrafish is gradually gaining prominence in the field of scientific research. The unique biological characteristics and advantages of zebrafish make them play an increasingly important role in the quality evaluation of traditional Chinese medicine. Compared with other common experimental animals， zebrafish have a fast reproductive and growth speed and high embryo transparency， making them an ideal model for evaluating the quality of traditional Chinese medicine. This provides a new perspective and method for research on traditional Chinese medicine. With the growing global interest in traditional Chinese medicine， it has become crucial to find scientific and accurate methods to evaluate the quality and effectiveness of traditional Chinese medicine. The introduction of the zebrafish model has brought new breakthroughs in the quality evaluation of traditional Chinese medicine. To further promote the application of zebrafish in evaluating the quality of traditional Chinese medicine， this article systematically searched and sorted out the previous studies related to the application of zebrafish for this purpose since 2023. The commonly used disease models and indicators of zebrafish in evaluating the effectiveness of traditional Chinese medicine， as well as the mechanism of zebrafish in exploring the active ingredients of traditional Chinese medicine， were primarily reviewed. The application of zebrafish in evaluating the safety of traditional Chinese medicine and the typical examples in ensuring the quality of traditional Chinese medicine were demonstrated. The limitations encountered by zebrafish models in evaluating the quality of traditional Chinese medicine were highlighted. The resolution of these problems will help further improve the accuracy and reliability of zebrafish in evaluating the quality of traditional Chinese medicine. The article discussed the evaluation of effectiveness， safety， and quality control of zebrafish applied in traditional Chinese medicine， so as to provide a reference for establishing standards for traditional Chinese medicine and promoting its modernization in the future.

ObjectiveTo investigate the association and translational mechanism between the hepatotoxicity of Xianling Gubao （XLGB） and its treatment of osteoporosis based on a zebrafish model. MethodsZebrafish were randomly selected four days after fertilization （4 dpf） and exposed to different concentrations of XLGB （0.7，0.35 mg·L^-1） for 96 h. At the endpoint of the exposure， the mortality rates of zebrafish in the treatment groups of different concentrations were counted， and the "dose-toxicity" curves were plotted. The 10% sublethal concentration （LC₁₀） was calculated. The liver area， acridine orange staining， and pathological tissue sections of transgenic zebrafish ［CZ16 （gz15Tg.Tg （fabp 10a： ds Red； ela31： EGFP）］ were used as indicators to confirm the hepatic damage caused by the sublethal concentration of XLGB. By using the prednisolone （PNSL）-induced osteoporosis model of zebrafish， the anti-osteoporosis activity of XLGB was evaluated by using the area of skull stained by alizarin red and the cumulative optical density value as indicators. Then， the toxicity difference of XLGB on the liver of zebrafish in healthy and osteoporotic states was compared， and the mechanism of the translational action of the toxicity of XLGB was predicted based on network pharmacology and real-time polymerase chain reaction（Real-time PCR）. ResultsThe LC₁₀ of XLGB on zebrafish （8 dpf） was 0.7 mg·L^-1. Compared with the blank group， the sublethal concentration （LC₁₀=0.7 mg·L^-1， 1/2 LC₁₀=0.35 mg·L^-1） of XLGB induced an increase in the number of apoptosis of hepatocytes in a dose-dependent manner， and the tissue arrangement of the liver was disordered and loose. The vacuoles were obvious， and the fluorescence area of the liver was significantly reduced （P<0.01）. Compared with the blank group， the mineralized area and cumulative optical density value of zebrafish skull in the PNSL model group were significantly reduced （P<0.01）， and those in the 0.7，0.35 mg·L^-1 XLGB treatment group were significantly increased compared with the model group （P<0.01）. Most importantly， 0.7 mg·L^-1 XLGB had no significant effect on the liver of zebrafish in the osteoporosis disease model compared with the blank group. The results of network pharmacology and real-time PCR experiments showed that the toxic transformation of XLGB might be related to the differences in the expression levels of key targets， such as tumor protein 53 （TP53）， cysteine aspartic acid specific protease-3（Caspase-3）， interleukin（IL）-6， and alkaline phosphatase（ALP） in different organismal states. ConclusionUnder certain conditions， XLGB has hepatotoxicity in normal zebrafish， but under osteoporotic conditions， XLGB not only exerts significant anti-osteoporosis activity but also alleviates hepatotoxicity significantly， which provides a reference for the safe clinical use of XLGB and real evidence for the theories of traditional Chinese medicine of attacking poison with poison and of treating disease with corresponding drugs without damage to the body.

Ionizing radiation impairs ovarian function by inducing DNA double-strand breaks, oxidative stress, and inflammatory cascades, leading to primordial follicle depletion and premature ovarian insufficiency (POI). Core mechanisms involve ATM/p53-mediated DNA damage response, granulosa cell apoptosis triggered by a sharp increase in reactive oxygen species/reactive nitrogen species (ROS/RNS), and Toll-like receptor (TLR)/NF-κB-driven chronic inflammation. Currently, only amifostine and palifermin are internationally approved radioprotective agents, yet they exhibit significant limitations including severe toxicity, narrow indications, and lack of conclusive evidence for ovarian protection. Investigational agents like the natural antioxidant melatonin require further clinical validation for ovarian radioprotection. Emerging strategies, such as TLR5 agonists, mitochondrial-targeted agents, and targeted drug delivery systems, provide novel directions for mitigating radiation-induced ovarian injury. This review synthesizes key pathways of radiation-induced ovarian damage, explores cutting-edge mechanisms, and highlights promising novel radioprotective agents. The proposed synergistic “epigenetic regulation + immunomodulation” strategy embodies a paradigm shift from passive mitigation to active precision protection against ovarian radiation damage.

BACKGROUND:Currently,there are various rat models of lumbar disc herniation used in experiments,each with its own advantages and disadvantages.The most common modeling methods include autologous nucleus pulposus transplantation and annulus fibrosus puncture models.OBJECTIVE:To establish two autologous nucleus pulposus transplantation models(with spinous process and mastoid process excision and with transverse process and mastoid process excision)as well as an annulus fibrosus puncture model,and to compare and evaluate the characteristics of the three models.METHODS:Forty male adult Sprague-Dawley rats were randomly divided into four groups(n=10 per group):sham surgery group,spinous process group,transverse process group,and annulus fibrosus puncture group.In the sham surgery group,surgical preparation was performed,the skin was incised,and the spinous process was exposed,and then sutured.In the spinous process group,L5 spinous process and transverse process were excised,and two pieces of tail nucleus pulposus were placed in the intervertebral foramen.In the transverse process group,L5 transverse process and transverse process were excised,and two pieces of tail nucleus pulposus were placed in the intervertebral foramen.In the annulus fibrosus puncture group,the transverse process was excised and annulus fibrosus puncture and intervertebral disc injection of interleukin 1β were then performed.Thermal paw withdrawal latencies were tested before and after modeling.Lumbar spine MRI was performed 2 weeks after modeling.Pathological changes in the intervertebral discs were observed using hematoxylin-eosin staining and safranin-O-fast green staining.Immunofluorescence was used to observe CD68+positive expression.RESULTS AND CONCLUSION:(1)Thermal withdrawal threshold testing results showed that compared with the sham surgery group,pain sensitivity and tolerance time of rats decreased significantly after modeling(P<0.05).(2)Lumbar spine MRI images showed that the spinous process and transverse process groups had obvious protrusion of nucleus pulposus tissue,which more closely resembled MRI images of patients with common lumbar disc herniation.(3)Hematoxylin-eosin staining revealed that compared with the sham surgery group,nucleus pulposus tissues in the model groups showed varying degrees of degeneration,inflammatory cell infiltration,and degradation of spinal cord cells,with the appearance of cystic changes,among which the annulus fibrosus puncture group had the most severe pathological changes.(4)Safranin-O-fast green staining showed that compared with the sham surgery group,the boundaries of nucleus pulposus tissues in the three model groups were blurred,with extensive inflammatory reactions and varying degrees of degeneration in the annulus fibrosus.(5)CD68+immunofluorescence staining results showed that compared with the sham surgery group,the expression of CD68+in the model groups was higher and more widespread,with the annulus fibrosus puncture model showing the highest expression.All the three methods could be used to effectively establish rat models of lumbar disc herniation,with the annulus fibrosus puncture model established after excision of the transverse process being superior to the autologous nucleus pulposus transplantation model(spinous process+mastoid process),and the first two models being superior to the autologous nucleus pulposus transplantation model(transverse process+mastoid process).

BACKGROUND:Currently,there are various rat models of lumbar disc herniation used in experiments,each with its own advantages and disadvantages.The most common modeling methods include autologous nucleus pulposus transplantation and annulus fibrosus puncture models.OBJECTIVE:To establish two autologous nucleus pulposus transplantation models(with spinous process and mastoid process excision and with transverse process and mastoid process excision)as well as an annulus fibrosus puncture model,and to compare and evaluate the characteristics of the three models.METHODS:Forty male adult Sprague-Dawley rats were randomly divided into four groups(n=10 per group):sham surgery group,spinous process group,transverse process group,and annulus fibrosus puncture group.In the sham surgery group,surgical preparation was performed,the skin was incised,and the spinous process was exposed,and then sutured.In the spinous process group,L5 spinous process and transverse process were excised,and two pieces of tail nucleus pulposus were placed in the intervertebral foramen.In the transverse process group,L5 transverse process and transverse process were excised,and two pieces of tail nucleus pulposus were placed in the intervertebral foramen.In the annulus fibrosus puncture group,the transverse process was excised and annulus fibrosus puncture and intervertebral disc injection of interleukin 1β were then performed.Thermal paw withdrawal latencies were tested before and after modeling.Lumbar spine MRI was performed 2 weeks after modeling.Pathological changes in the intervertebral discs were observed using hematoxylin-eosin staining and safranin-O-fast green staining.Immunofluorescence was used to observe CD68+positive expression.RESULTS AND CONCLUSION:(1)Thermal withdrawal threshold testing results showed that compared with the sham surgery group,pain sensitivity and tolerance time of rats decreased significantly after modeling(P<0.05).(2)Lumbar spine MRI images showed that the spinous process and transverse process groups had obvious protrusion of nucleus pulposus tissue,which more closely resembled MRI images of patients with common lumbar disc herniation.(3)Hematoxylin-eosin staining revealed that compared with the sham surgery group,nucleus pulposus tissues in the model groups showed varying degrees of degeneration,inflammatory cell infiltration,and degradation of spinal cord cells,with the appearance of cystic changes,among which the annulus fibrosus puncture group had the most severe pathological changes.(4)Safranin-O-fast green staining showed that compared with the sham surgery group,the boundaries of nucleus pulposus tissues in the three model groups were blurred,with extensive inflammatory reactions and varying degrees of degeneration in the annulus fibrosus.(5)CD68+immunofluorescence staining results showed that compared with the sham surgery group,the expression of CD68+in the model groups was higher and more widespread,with the annulus fibrosus puncture model showing the highest expression.All the three methods could be used to effectively establish rat models of lumbar disc herniation,with the annulus fibrosus puncture model established after excision of the transverse process being superior to the autologous nucleus pulposus transplantation model(spinous process+mastoid process),and the first two models being superior to the autologous nucleus pulposus transplantation model(transverse process+mastoid process).

Basivertebral foramen is a natural orifice in the posterior wall of the vertebral body existing in humans and mammals,through which the basal vertebral vein,branch of lumbar artery and recurrent branch of spinal nerve enter and exit the vertebral body.Basivertebral foramen changes the local microstructure of the vertebral body,resulting in cortical defect and sparse trabecular bone in the central region of the vertebral body,thus affecting its biomechanical characteristics and making its central region a"weak"area of the vertebra.Some characteristic injuries of the vertebra are related to basivertebral foramen,such as vertebral compression fracture and intervertebral cleft,vertebral burst fracture and posterior upper vertebral fracture fragment,and cement leakage during treatment.In this article,the anatomical and developmental biological characteristics of basivertebral foramen,the impact of basivertebral foramen on biomechanical characteristics,and the treatment of basivertebral foramen related vertebral diseases are reviewed,in order to provide references for the clinical diagnosis and treatment of vertebral injuries.

Objective:To evaluate the effects of the defect situational objective structured clinical examination (OSCE) in the training of specialized nurses in the operating room, and provide a new idea for the training of specialized nurses in the operating room.Methods:A quasi experimental study was used in this study. A total of 78 nurses who participated in the training of the operating room specialized nurses in Henan Province in 2022 and 2023 which were organized by the First Affiliated Hospital of Zhengzhou University were selected by cluster sampling method. The nurses who participated in the training in 2022 and 2023 were assigned to the control group (38 participants) and the experimental group (40 participants), respectively. Nurses in the experimental group received defect situational OSCE, while nurses in the control group received conventional teaching. After the training, the effect of the two teaching methods was evaluated by skill operation assessment results and Clinical Thinking Ability Assessment Scale.Results:There were 4 males and 34 females in the control group, aged (30.03 ± 4.33) years old, and 3 males and 37 females in the experimental group, aged (29.93 ± 3.95) years old. The scores of the verification and handover of surgical patients, surgical position placement and the occupational exposure protection were (91.80 ± 2.95), (90.38 ± 3.66), (91.10 ± 3.26) points in the experimental group and were (89.08 ± 3.21), (87.84 ± 3.49), (88.39 ± 4.21) points in the control group, the differences between the two groups were statistically significant ( t = 3.91, 3.13, 3.18, all P<0.05). The total score of clinical thinking ability in the experimental group was (80.66 ± 1.85) points, which was higher than (77.77 ± 1.62) points in the control group, the difference between the two groups was statistically significant ( t = 7.31, P<0.05). The evaluation of the teaching effect in the experimental group was better, and the satisfaction rate was 92.5%(37/40)-100.0%(40/40). Conclusions:The application of defect situational OSCE teaching method in the training of operating room nurses could better improve the operational ability and help to improve the clinical thinking ability of nurses. The training effect is superior to the conventional teaching method, and it is worthy of clinical application.

Objective:To construct a competency evaluation indicator system for infection prevention and control nurses in Operating Rooms (hereinafter referred to as "IPC") and provide an objective basis for the management of IPC nurses.Methods:From June to November 2022, an initial competency evaluation indicator system for IPC nurses was developed through literature review and semi-structured interviews. The Delphi method was employed to consult 20 experts from 11 provinces and municipalities across the country. Analytical Hierarchy Process (AHP) and mean distribution method were applied to quantify and determine the weight of each level of indicators within the system.Results:Nineteen experts were finally included, with two rounds of questionnaire recovery rates of 95.00% (19/20) and 100.00% (19/19), respectively. The authority coefficients of the experts were 0.858 and 0.861, familiarity coefficients were 0.850 and 0.853, and coefficients of judgment basis were 0.865 and 0.868, respectively. The Kendall's W coefficient of concordance for the two rounds of inquiries were 0.139 and 0.202 ( P<0.05), respectively. The final IPC nurse competency evaluation indicator system included six primary indicators, 22 secondary indicators, and 66 tertiary indicators. Conclusions:The constructed IPC nurse competency evaluation indicator system is scientific, reasonable, objective, and comprehensive, providing a valuable reference for the capability training, assessment, entry standards, and qualification certification of IPC nurses.

Objective To establish the rapid discriminate analysis and quantitative analysis methods for carbonized Typhae Pollen(CTP)using near infrared spectroscopy coupled with chemometrics.Methods A total of 186 batches of CTP samples were prepared and categorized into three group including light degree CTP,moderate CTP,and heavy degree CTP.The NIR spectra of these samples were characterized.Then partial least squares-discriminant analysis(PLS-DA),k-nearest neighbors(KNN),support vector machine(SVM)algorithms were separately applied to build the discriminant models.The performance of discriminant models was evaluated in terms of the accuracy(ACC)and the error rate(ER).The partial least squares algorithm was used to establish the quantitative model for the prediction of 3,4-dihydroxybenzoic acid,3-hydroxybenzoic acid,4-hydroxybenzoic acid,azelaic acid,quercetin,quercetin-3-(2G-rhamnosylrutinoside),kaempferol,kaempferol-3-(2G-rhamnosylrutinoside),isorhamnetin,typhaneoside,isorhamnetin-3-O-neohesperidin,and naringenin of CTP samples.The correlation coefficients(rcal,rpre),the root mean square error of calibration(RMSEC),the root mean square error of prediction(RMSEP),and the ratio of performance deviation(RPD)were calculated to assess the PLS model.Results Compared with PLS-DA and KNN models,the SVM model yielded the best classification.The ACC of SVM model was 90.08％for calibration set and 93.44％for prediction set,while the ER was 9.08％for calibration set and 5.31 for prediction set.The values of rcal and r for PLS models were greater than 0.9,and the RPD of that was greater than 2.3.Conclusion In this study,the NIR spectroscopy coupled with chemometrics was firstly applied to develop the rapid discriminant analysis and quantitative analysis methods for CTP.The NIR-based method is rapid,non-destructive,and accurate,and it provides the scientific basis and method support for the rapid judgment of the processing degree of CTP and analysis of the changes of chemical components to ensure the quality of CTP.

Background:Colonoscopy,regarded as the gold standard for detecting colorectal polyps,has a certain rate of missed diagnosis.Enhancing the polyp detection rate holds the promise of reducing the incidence of colorectal cancer.In recent years,electronic chromoendoscopy has been gradually gaining popularity.Optical enhancement(OE),which is the electron staining mode of Pentax endoscopy,and its impact on the polyp detection rate in patients with ulcerative colitis(UC)remains unclear.Aims:To investigate the effect of OE mode on polyp detection rate in patients with UC.Methods:A total of 233 UC patients who underwent colonoscopy at Xingtai People's Hospital in Hebei Province from July 2020 to April 2024 were enrolled.These patients were divided into the OE group and the High-definition white light(HDWL)group.The two groups were compared in terms of gender,age,Boston bowel preparation score(BBPS),withdrawal time,polyp detection rate,adenoma detection rate,polyp size,and polyp location.Results:There were no significant differences in gender,age,BBPS,and withdrawal time between the OE group and the HDWL group.When compared with the HDWL group,No significant differences in the polyp detection rate(24.66%vs.14.69%,P=0.071)and the adenoma detection rate(13.7%vs.6.99%,P=0.108)were found between the OE group and HDWL group.There was no significant difference in the detection rate of tiny polyps(with a diameter≤5 mm)between the OE group and the HDWL group(78.57%vs.79.41%,P=0.936).Also,there was no significant difference in the detection rate of proximal colon polyps(42.86%vs.41.18%,P=0.894).Moreover,no complications such as bleeding or perforation occurred during the colonoscopy in either group.Conclusions:During colonoscopy,compared with the HDWL mode,the OE mode does not significantly improve the polyp detection rate in UC patients.