Objective:To investigate the effects of melatonin(Mel)on inflammatory damage in the retina of rats with oxygen-induced retinopathy(OIR)and the molecular mechanisms.Methods:Healthy neonatal SD rats were di-vided into the sham group(Sham),the model group(OIR),and the melatonin treatment group(OIR+Mel).The OIR model was induced by alternating 50%/10%oxygen concentration exposure for 14 d.The OIR+Mel group was in-jected intraperitoneally with 10 mg-kg-1 melatonin.Hematoxylin-eosin(HE)staining was used to observe the morpho-logical changes in the retinal tissue;immunohistochemical staining was used to detect the expression of retinal cleaved-caspase-1 and IL-1β proteins;and immunofluorescence staining was used to detect the expression of cGAS-STING-NL-RP3 signaling molecules and gasdermin(GSDMD)in the microglia of the retina.Results:HE staining results showed that compared with the Sham group,the retinal cells in the OIR group were disorganized and the thickness of the inner retina was significantly thinner,and the retinal cells in the OIR+Mel group were more neatly arranged compared with those in the OIR group(P<0.05).Immunohistochemical staining results showed that the number of cleaved-caspase-1+and IL-1β+cells in the retina of rats in the OIR group increased significantly compared with that in the Sham group,and the number of cleaved-caspase-1+and IL-1β+cells in the retina of rats in the OIR+Mel group decreased signifi-cantly compared with that of the OIR group(P<0.05).Immunofluorescence staining results showed that the number of cGAS+,STING+and NLRP3+cells in the retina of rats in the OIR group increased significantly compared with that in the Sham group,and the number of cGAS+,STING+and NLRP3+cells in the retina of rats in the OIR+Mel group de-creased significantly compared with that in the OIR group(P<0.05);The number of Iba-1+/N-GSDMD+cells in-creased significantly in the OIR group compared with the Sham group,whereas the number of Iba-1+/N-GSDMD+cells in the OIR+Mel group was significantly less than that in the OIR group,but still more than that in the Sham group(P<0.05).Conclusion:Mel inhibits the pyroptosis of retinal microglia,thus attenuates retinal inflammatory injury in OIR rats,and its mechanism may be related to the cGAS-STING-NLRP3 signaling pathway.

Superparamagnetic iron oxide nanoparticles(SPIONs)have been shown to exhibit degradability,superparamagnetic responsive-ness,and multimodal functional properties,which are expected to overcome the bottleneck of traditional separation between diagnosis and treatment in the time and space domains.Through magnetic resonance imaging(MRI)-guided intelligent delivery of targeted drugs,magnet-ic/light/acoustic multi-physical field collaborative therapy,and other strategies,the tumor microenvironment can be precisely regulated and drug resistance can be reversed.Herein,we systematically review the core mechanisms of SPIONs in cross-scale diagnosis and treatment and discuss the innovative application mechanism and technical progress of SPIONs in regard to the integration of tumor theranostics.SPIONs provide breakthrough solutions for the precise diagnosis and treatment of tumors through MRI navigation,targeted delivery system con-struction,and multimodal strategies,offering a theoretical foundation.However,current studies continue to encounter various challenges,including inadequate biosafety validation,restricted efficiency of targeted delivery due to tumor heterogeneity,and complexity of optimiz-ing parameters for multimodal synergistic treatments.Further refinement of material design and clinical translation strategies are essential for providing a valuable reference for developing systematic solutions that bridge theoretical innovations with technological implementation in tumor precision medicine.

This article introduced the experience of physician Chen Shiduo of the Qing Dynasty in treating hyperhidrosis as documented in Bian Zheng Lu.Chen Shiduo proposed several syndromes for hyperhidrosis,including insufficient lung qi,imbalance between the heart and kidney,depletion of kidney yin,excessive stomach fire,and deficiency of heart blood.In terms of treatment,he advocated for methods that focus on reinforcing deficiency and consolidating the exterior while also nourishing yin,clearing heart heat and nourishing kidney water,replenishing true yin to harmonize yin and yang,nourishing stomach yin to reduce fire and stop sweating,and nourishing the heart to enrich blood and drain fire.His medication approach emphasizes harmonizing the internal organs,with a particular expertise in using Mori Folium.His diagnosis and treatment of hyperhidrosis have been remarkably effective and serve as a reference for later generations.

Breast cancer is one of the most prevalent malignant tumor in women worldwide,in which,triple-negative breast cancer(TNBC)is highly invasive and metastatic.In recent years,the incidence rate of TNBC has gradually increased and shown a trend of younger age.With the in-depth research on the molecular mechanism of breast cancer,neuropilin-1(NRP-1),a transmembrane protein,has been found to be associated with metastasis and prognosis of breast cancer,particularly TNBC.Therefore,NRP-1 has become a promising target for the diagnosis and treatment of breast cancer.The expression and distribution of NRP-1 in breast cancer can be detected by nuclear medicine,optical imaging and multimodal imaging methods in a non-invasive,real-time and accurate manner,which has significant application value in the early diagnosis,staging,treatment,and prognosis evaluation of breast cancer.Nuclear medicine probes specifically target tumor cells or tissues by combining radionuclides(e.g.,68Ga and 99mTc)with specific molecular ligands,and the signal is captured using positron emission tomography(PET)or single-photon emission computed tomography(SPECT),allowing for sensitive diagnosis of breast cancer.With the development of medical imaging and other interdisciplinary subjects,the NRP-1 targeted multimodal molecular probe[68Ga]Ga-NODAGA-K(Cy5)DKPPR combined the high sensitivity of PET with the high resolution advantage of near-infrared fluorescence(NIRF)to achieve precise diagnosis of breast cancer and provide real-time fluorescence navigation during surgery,enhancing the accuracy of tumor tissue identification and excision.In this paper,the advantages and disadvantages of NRP-1 targeted molecular probes in the diagnosis of breast cancer were systematically compared,and the application scope and latest research progress of various probes in the diagnosis and treatment of breast cancer were described,in order to provide reference for the development and clinical application of breast cancer targeted molecular probes.

Objective:To explore the safety, economic benefits, and clinical application effect of the new practical patent open window central venous catheter combination dressing (Patent No.ZL 202121652858.8).Methods:From October 2022 to October 2023, a randomized controlled trial was conducted. A total of 120 tumor patients in Yunnan Cancer Hospital with indwelling central venous catheters who met the inclusion and exclusion criteria were randomly divided into three groups at a ratio of 1∶1∶1 with random digit table, with 40 patients in each group: control group 1, control group 2, and the experimental group. In control group 1, Smith & Nephew IV 3000 dressing was used, in control group 2, 3M transparent dressing was used; and in the experimental group, the self - developed fenestrated central venous catheter combined dressing by the researchers was used for catheter maintenance. The skin surface bacterial colonization, the occurrence of medical adhesive-related skin injuries, catheter maintenance time, and maintenance costs were compared among the three groups.Results:In control group 1, there were 21 males and 19 females, with an average age of (51.53 ± 12.01) years. In control group 2, there were 22 males and 18 females, with an average age of (54.00 ± 11.03) years. In the experimental group, there were 19 males and 21 females, with an average age of (53.60 ± 9.41) years. During the 72 - hour observation period, 1, 3, and 2 cases of bacterial colonization occurred in control group 1, control group 2, and the experimental group respectively, and there was no significant difference among the three groups ( χ2 = 1.10, P = 0.577). No medical adhesive - related skin injury occurred in the experimental group, and there was a significant difference compared with the 4 cases in control group 2 ( χ2 = 4.21, P = 0.040). The average catheter maintenance time and maintenance cost in the experimental group were (15.20 ± 1.56) minutes and (8.11 ± 1.35) yuan respectively. Compared with (21.05 ± 3.31) minutes and (13.16 ± 1.03) yuan in control group 1, the differences were statistically significant ( t = 5.85, 5.05, both P<0.001). Compared with (21.08 ± 3.00) minutes and (15.17 ± 1.63) yuan in control group 2, the differences were also statistically significant ( t = 5.88, 7.06, both P<0.001). Conclusions:The open-window central venous catheter combination dressing designed in this study can effectively reduce the incidence of medical adhesive-related skin injury, and also has a better role in saving maintenance time and reducing maintenance costs, especially for patients who need repeated dressing changes at the puncture point for treatment with the advantages of, convenience, economy, speed, firm fixation and safety.

Prostate cancer is one of the most common male urological malignancies,in which bone metastasis of desmo-plasia-resistant prostate cancer is an important stage in the progression of the disease,which seriously affects the quality of life and survival of patients.With the development of nuclide therapy technology in recent years,223-Ra,as a new type of alpha-targeted therapy,has shown good efficacy in the treatment of desmoplasia-resistant prostate cancer bone metastasis.The purpose of this pa-per is to review the characteristics,mechanism of action,treatment,and the main research results of its treatment of desmoplasia-resistant prostate cancer bone metastasis,and provide a comprehensive review of the clinical application of 223-Ra in the treatment of desmoplasia-resistant prostate cancer bone metastasis for the clinical application of 223-Ra in prostate cancer bone metastasis.

Peptide-based radiopharmaceuticals targeting integrin α5β1 show promise for precise tumor diagnosis and treatment. However, current peptide-based radioligands that target α5β1 demonstrate inadequate in vivo performance owing to limited tumor retention. The use of PEGylation to enhance the tumor retention of radiopharmaceuticals by prolonging blood circulation time poses a risk of increased blood toxicity. Therefore, a PEGylation strategy that boosts tumor retention while minimizing blood circulation time is urgently needed. Here, we developed a PEGylation-enabled peptide multidisplay platform (PEGibody) for PR_b, an α5β1 targeting peptide. PEGibody generation involved PEGylation and self-assembly. [⁶⁴Cu]QM-2303 PEGibodies displayed spherical nanoparticles ranging from 100 to 200 nm in diameter. Compared with non-PEGylated radioligands, [⁶⁴Cu]QM-2303 demonstrated enhanced tumor retention time due to increased binding affinity and stability. Importantly, the biodistribution analysis confirmed rapid clearance of [⁶⁴Cu]QM-2303 from the bloodstream. Administration of a single dose of [¹⁷⁷Lu]QM-2303 led to robust antitumor efficacy. Furthermore, [⁶⁴Cu]/[¹⁷⁷Lu]QM-2303 exhibited low hematological and organ toxicity in both healthy and tumor-bearing mice. Therefore, this study presents a PEGibody-based radiotheranostic approach that enhances tumor retention time and provides long-lasting antitumor effects without prolonging blood circulation lifetime. The PEGibody-based radiopharmaceutical [⁶⁴Cu]/[¹⁷⁷Lu]QM-2303 shows great potential for positron emission tomography imaging-guided targeted radionuclide therapy for α5β1-overexpressing tumors.

Post-traumatic stress disorder(PTSD)is a severe mental disorder that significantly impacts an indi-vidual's health,with its primary symptom being fear-based memories.In the pathological state of PTSD,fear-based memo-ries are prolonged and intensified by certain physiological mechanisms.Therefore,expediting the extinction of fear-based memories and preventing their excessive consolidation are crucial for successful treatment.Recently,researchers have dis-covered that ketamine,beyond its role as an anesthetic,also plays a substantial part in regulating fear-based memories.This paper aims to elucidate the role of ketamine in modulating conditioned fear-based memories across various time frames and brain regions,as well as the associated molecular mechanisms.Furthermore,it seeks to clarify the specificity of dif-ferent molecular mechanisms in distinct time frames of fear-based memories and assess whether ketamine could be a prima-ry medication for treating PTSD.

Breast cancer is one of the most prevalent malignant tumor in women worldwide,in which,triple-negative breast cancer(TNBC)is highly invasive and metastatic.In recent years,the incidence rate of TNBC has gradually increased and shown a trend of younger age.With the in-depth research on the molecular mechanism of breast cancer,neuropilin-1(NRP-1),a transmembrane protein,has been found to be associated with metastasis and prognosis of breast cancer,particularly TNBC.Therefore,NRP-1 has become a promising target for the diagnosis and treatment of breast cancer.The expression and distribution of NRP-1 in breast cancer can be detected by nuclear medicine,optical imaging and multimodal imaging methods in a non-invasive,real-time and accurate manner,which has significant application value in the early diagnosis,staging,treatment,and prognosis evaluation of breast cancer.Nuclear medicine probes specifically target tumor cells or tissues by combining radionuclides(e.g.,68Ga and 99mTc)with specific molecular ligands,and the signal is captured using positron emission tomography(PET)or single-photon emission computed tomography(SPECT),allowing for sensitive diagnosis of breast cancer.With the development of medical imaging and other interdisciplinary subjects,the NRP-1 targeted multimodal molecular probe[68Ga]Ga-NODAGA-K(Cy5)DKPPR combined the high sensitivity of PET with the high resolution advantage of near-infrared fluorescence(NIRF)to achieve precise diagnosis of breast cancer and provide real-time fluorescence navigation during surgery,enhancing the accuracy of tumor tissue identification and excision.In this paper,the advantages and disadvantages of NRP-1 targeted molecular probes in the diagnosis of breast cancer were systematically compared,and the application scope and latest research progress of various probes in the diagnosis and treatment of breast cancer were described,in order to provide reference for the development and clinical application of breast cancer targeted molecular probes.