ObjectiveTo investigate the current status of assistive device use and unmet needs among persons with disabilities in Sichuan-Chongqing region, and to identify the key factors associated with satisfaction with these devices. MethodsFrom October, 2024 to February, 2025, quota sampling was adopted to recruit 1 040 persons with disabilities in Sichuan and 260 persons with disabilities in Chongqing. Telephone and online questionnaires were used to collect data on demographic characteristics, status of assistive device utilization and unmet assistive device needs, as well as satisfaction with assistive device use. Correlation analysis, multiple linear regression analysis and structural equation modeling were performed to identify key factors associated with satisfaction. ResultsA total of 1 186 valid responses were collected, of which 942 were from Sichuan Province and 244 from Chongqing Municipality. The utilization rate of assistive devices among persons with disabilities in Sichuan-Chongqing region was 61.9%, and the rate of unmet assistive device needs was 30.6%. The assistive device utilization rate of participants with agricultural household registration (57.98%) was lower than that of participants with non-agricultural household registration (66.86%). The utilization rate showed a J-shaped upward trend with the increase of educational attainment. Educational attainment (P = 0.002), perceived usefulness of assistive devices (P < 0.001), home living environment (P < 0.001), public environment (P < 0.001) and disability type (significant differences were found in visual and hearing disabilities compared with physical disability, P < 0.05) were key predictors of satisfaction with assistive device use. The impact of public environment on satisfaction was exerted through two indirect mediating paths: mediating effect via perceived usefulness of assistive devices (ind₁ = 0.357, 95%CI 0.279 to 0.437, P < 0.001), contributing approximately 70% of the total indirect effect; mediating effect via home living environment (ind₂ = 0.129, 95%CI 0.006 to 0.242, P = 0.038), contributing approximately 25% of the total indirect effect. ConclusionThere is a structural imbalance between assistive device use and demand in Sichuan-Chongqing region. People with psycho-intellectual disabilities are most likely to be excluded from the service chain because they neither perceive need nor access information. Education exerts a robust positive effect on both adoption and satisfaction, so training content must be tailored to different educational levels. Satisfaction is shaped by disability type, device usefulness and environmental factors. Future product development should therefore integrate functional and psychosocial dimensions. Priority should be given to micro-scale home-and-community accessibility retrofits before extending upward to public transportation and employment settings, to maximize the cost-effectiveness of limited funds.

ObjectiveTo construct and evaluate various machine learning models for predicting the risk of chronic obstructive pulmonary disease （COPD） in individuals， thereby providing data support for early screening and intervention. MethodsA total of 823 subjects were selected for this study， comprising 142 individuals in the high-risk group for COPD and 681 individuals in the low-risk group. Data collected included demographic characteristics， smoking history， symptoms （such as cough and shortness of breath）， and scores from the Chronic obstructive pulmonary disease screening questionnaire. Four machine learning algorithms—Logistic regression， random forest， support vector machine， and XGBoost—were utilized to construct risk prediction models. The performance of these models was assessed using 5-fold cross-validation， with evaluation metrics including accuracy， precision， recall， F1-score， area under the receiver operating characteristic curve （AUC）， and average precision （AP）. Furthermore， a feature importance analysis was performed. ResultsThe Logistic Regression model exhibited superior performance， achieving an AUC of 0.982 and an AP of 0.939. This was closely followed by the Random Forest model， which recorded an AUC of 0.975 and an AP of 0.890. Feature importance analysis revealed that smoking history， symptoms of shortness of breath， and body weight were significant predictors. All models demonstrated robust performance in identifying low-risk populations； however， variations were observed in their efficacy in identifying high-risk populations. ConclusionMachine learning models have proven effective in identifying individuals at high risk for COPD. Among these， the Logistic regression model exhibits the best overall performance， efficiently identifying high-risk populations and serving as a valuable clinical auxiliary screening tool. Various models， each with distinct performance characteristics， are suited to different clinical screening scenarios， thereby offering targeted decision-making support for the establishment of a hierarchical and intelligent COPD screening pathway.

Objective:To evaluate the efficacy and safety of Luofuoshan-Baicao oil (LBO) and wind medicated oil for the treatment of Aedes albopictus bites. Methods:A paired self-controlled study was conducted. Thirty-six healthy volunteers were recruited from Guangdong Provincial Hospital of Traditional Chinese Medicine from February 2023 to March 2023. Each participant's forearms were subjected to Aedes albopictus bites, with 3 bites on each arm. For the first 18 participants, LBO was applied to the left arm, and wind medicated oil to the right arm; for the latter 18 participants, wind medicated oil was applied to the left arm, and LBO to the right arm. The observation period was 24 hours. Within the first 3 hours after the mosquito bites, the topical agents were applied once every other hour for a total of 3 sessions, with an applicator centered on the bite site at a dose of approximately 50 μl, covering a skin area of about 2 cm in diameter; after 3 hours, participants applied the topical agents themselves until symptoms subsided or the 24-hour observation period ended. All subjects were followed up at the occurrence of skin lesions after mosquito bites, 0 to 3 hours after the first treatment, as well as 24 hours after the first treatment. During the follow-up, the effects of both topical agents on pruritus, erythema, papules, or wheals were evaluated, differences in treatment frequency were analyzed, and treatment-related adverse events were recorded. The time to disappearance of pruritus after treatment was statistically analyzed using Kaplan-Meier survival analysis, and intergroup differences were analyzed using the log-rank (Mantel-Cox) test. Two independent samples t-test was used for comparisons of other measurement data, and Pearson's chi-square test or Fisher's exact test was used for comparisons of count data between groups. Results:Within 3 hours after the first treatment, the time to initial disappearance of pruritus was significantly shorter in the LBO group (20.71 ± 1.92 min) than in the wind medicated oil group (28.30 ± 2.20 min, P < 0.05). The cumulative pruritus rate (the proportion of participants with pruritus among all participants) over time showed an overall stable fluctuation, and the cumulative pruritus rates at all observation points were significantly lower in the LBO group than in the wind medicated oil group ( P<0.05). After 3 hours of treatment, the mean values of changes in erythema diameters were 25.83 mm in the LBO group and 26.24 mm in the wind medicated oil group, while the mean values of changes in papule or wheal diameters were 8.25 mm in the LBO group and 9.18 mm in the wind medicated oil group; within 24 hours after the first treatment, the average time to disappearance of papules or wheals was 71.85 minutes in the LBO group and 73.01 minutes in the wind medicated oil group, while the average time to disappearance of erythema was 82.27 minutes in the LBO group and 84.86 minutes in the wind medicated oil group; there were no significant differences in the above observational indices between the two groups (all P > 0.05). The number of pruritus episodes within 24 hours of treatment was 56 in both the LBO group and wind medicated oil group, and the treatment frequency was 107 in both two groups; there were also no significant differences in the frequencies of pruritus episodes or treatment (both P > 0.05). No adverse events or reactions occurred during the trial. Conclusion:LBO was more effective than wind medicated oil in reducing the time to disappearance of pruritus after Aedes albopictus bites, with a high safety profile.

Objective:To evaluate the efficacy and safety of Luofuoshan-Baicao oil (LBO) and wind medicated oil for the treatment of Aedes albopictus bites. Methods:A paired self-controlled study was conducted. Thirty-six healthy volunteers were recruited from Guangdong Provincial Hospital of Traditional Chinese Medicine from February 2023 to March 2023. Each participant's forearms were subjected to Aedes albopictus bites, with 3 bites on each arm. For the first 18 participants, LBO was applied to the left arm, and wind medicated oil to the right arm; for the latter 18 participants, wind medicated oil was applied to the left arm, and LBO to the right arm. The observation period was 24 hours. Within the first 3 hours after the mosquito bites, the topical agents were applied once every other hour for a total of 3 sessions, with an applicator centered on the bite site at a dose of approximately 50 μl, covering a skin area of about 2 cm in diameter; after 3 hours, participants applied the topical agents themselves until symptoms subsided or the 24-hour observation period ended. All subjects were followed up at the occurrence of skin lesions after mosquito bites, 0 to 3 hours after the first treatment, as well as 24 hours after the first treatment. During the follow-up, the effects of both topical agents on pruritus, erythema, papules, or wheals were evaluated, differences in treatment frequency were analyzed, and treatment-related adverse events were recorded. The time to disappearance of pruritus after treatment was statistically analyzed using Kaplan-Meier survival analysis, and intergroup differences were analyzed using the log-rank (Mantel-Cox) test. Two independent samples t-test was used for comparisons of other measurement data, and Pearson's chi-square test or Fisher's exact test was used for comparisons of count data between groups. Results:Within 3 hours after the first treatment, the time to initial disappearance of pruritus was significantly shorter in the LBO group (20.71 ± 1.92 min) than in the wind medicated oil group (28.30 ± 2.20 min, P < 0.05). The cumulative pruritus rate (the proportion of participants with pruritus among all participants) over time showed an overall stable fluctuation, and the cumulative pruritus rates at all observation points were significantly lower in the LBO group than in the wind medicated oil group ( P<0.05). After 3 hours of treatment, the mean values of changes in erythema diameters were 25.83 mm in the LBO group and 26.24 mm in the wind medicated oil group, while the mean values of changes in papule or wheal diameters were 8.25 mm in the LBO group and 9.18 mm in the wind medicated oil group; within 24 hours after the first treatment, the average time to disappearance of papules or wheals was 71.85 minutes in the LBO group and 73.01 minutes in the wind medicated oil group, while the average time to disappearance of erythema was 82.27 minutes in the LBO group and 84.86 minutes in the wind medicated oil group; there were no significant differences in the above observational indices between the two groups (all P > 0.05). The number of pruritus episodes within 24 hours of treatment was 56 in both the LBO group and wind medicated oil group, and the treatment frequency was 107 in both two groups; there were also no significant differences in the frequencies of pruritus episodes or treatment (both P > 0.05). No adverse events or reactions occurred during the trial. Conclusion:LBO was more effective than wind medicated oil in reducing the time to disappearance of pruritus after Aedes albopictus bites, with a high safety profile.

ObjectiveTo explore the correlations between botanical characteristics， biological characteristics， growth environment， and medicinal properties of common pteridophyte-derived Chinese medicinal materials， thus providing evidence for the theory of quality evaluation through morphological identification and giving insights into the extensive and reasonable application of pteridophytes in traditional Chinese medicine （TCM）. MethodThe medicine parts， habitats， natures， tastes， and effects of the commonly used pteridophyte-derived Chinese medicinal materials were summarized. The commonly used pteridophyte-derived Chinese medicinal materials were retrieved from the Pharmacopoeia of China， Dictionary of Chinese Materia Medica， and related literature. Excel 2016， ChiPlot， Cytoscape 3.7.1， SPSS 21.0， and weiciyun software were used for statistical analysis. ResultThe frequency of the habitats followed the trend of streamside wetland>tree trunk and rock crevices>sunslope>water surface. The frequency of medicinal parts presented the trend of whole plant>rhizome>leaf>dried aboveground part>spore. The frequency of natures was in the order of cool>cold>plain>warm>hot， and that of tastes was in an order of bitter>pungent>sweet>bland>salty. The frequency of meridian tropism followed the trend of liver meridian>stomach meridian>lung meridian>kidney meridian>bladder meridian>heart meridian>large intestine meridian>spleen meridian>small intestine meridian. The effects of the pteridophyte-derived Chinese medicinal materials followed a frequency trend of clearing heat and detoxifying>promoting urination and relieving stranguria>cooling blood and stopping bleeding>activating blood and resolving stasis>dispelling wind and eliminating dampness. ConclusionThe pteridophyte-derived Chinese medicinal materials mainly have a cool nature， a bitter taste， and tropism to the liver meridian. Whole plants and roots are mainly used for medicinal purposes， and most of these plants grow in the wetlands near rivers， under trees， and in tree trunk and rock crevices. The main effects of these medicinal materials are clearing heat and detoxifying， dispelling wind and removing dampness， cooling blood and stopping bleeding， activating blood and resolving stasis， and soothing meridians and dredging collaterals. There are certain correlations between the structures， habitats， medicinal parts， and effects of pteridophyte-derived Chinese medicinal materials， which provide reference for the development and utilization of pteridophyte-derived Chinese medicinal material resources.

BACKGROUND:Hypoxic exercise can promote the degradation of body fat,and changes in the external environment can affect the circadian rhythm of animals,but the mechanisms by which changes in circadian rhythm regulate adipose tissue browning and fat degradation are unclear. OBJECTIVE:To elucidate the mechanism of clock gene regulation on epididymal adipose tissue Browning in obese rats undergoing hypoxia exercise. METHODS:Forty obese rats were randomly selected and divided into four groups(n=10 per group):normoxic sedentary group,hypoxic sedentary group,normoxic exercise group,and hypoxic exercise group for 4 weeks of intervention.The rats in the sedentary groups were not intervened,while those in the hypoxic groups lived in a hypoxic chamber with an oxygen concentration of 13.6%for the whole day.In the exercise groups,adaptive training was performed in the 1st week,and the speed and length of training remained unchanged for the last 3 weeks.The body mass,body length and perirenal fat mass of obese rats were measured.Serum levels of triacylglycerol,total cholesterol,low-density lipoprotein cholesterol,and high-density lipoprotein cholesterol in obese rats were detected by a biochemical assay kit.Liver fat content was observed by oil red O staining.Hematoxylin-eosin staining was used to evaluate the browning of epididymal adipose tissue of rats in different groups.RNA sequencing combined with bioinformatics analysis was used to analyze transcriptome changes in adipose tissue.The mRNA expressions of PGC-1α,Beclin 1,KLF 2 and Perilipin 1 in epididymal adipose tissue were detected by RT-PCR. RESULTS AND CONCLUSION:Hypoxic exercise intervention significantly decreased body mass,body fat percentage,Lee's index,serum triacylglycerol,total cholesterol,and low-density lipoprotein cholesterol levels(P＜0.01),and significantly increased high-density lipoprotein cholesterol level(P＜0.01).Oil red O staining and hematoxylin-eosin staining results showed that hypoxic exercise was more effective in promoting fat mobilization in liver tissue and promoting the browning of parepididymal adipose tissue compared with normoxic sedentary group,hypoxic sedentary group,and normoxic exercise group.RNA-seq results showed that hypoxic exercise significantly upregulated the expression of clock genes Dbp,Nr1d1,Sik1 and adipose tissue browning gene Ppargc1a(PGC-1α)and downregulated the expression of Arntl(Bmal1),accompanied by the enhanced expression of genes related to substance metabolism.qRT-PCR indicated that hypoxic exercise significantly increased the mRNA expression levels of PGC-1α and Perilipin1(P＜0.01).Therefore,these findings indicate that clock genes play an important role in promoting adipose tissue browning during hypoxic exercise.

ObjectiveTo investigate the correlation among the botanical characteristics， biological characteristics， chemical composition， and medicinal properties and efficacy of traditional Chinese medicines （TCM） from latex-containing plants， so as to strengthen the theory of "identifying symptoms for qualities" and provide a reference for the development and utilization of the latex-containing plant resources. MethodStatistics on the meridians for properties and tastes， efficacy， medicinal parts， family and genus， and chemical components of TCM from latex-containing plants were carried out. A total of 53 TCM from latex-containing plants included in the 2020 edition of the Chinese Pharmacopoeia were screened by mining the Chinese Botanical Journal， Chinese Materia Medica， Dictionary of Traditional Chinese Medicines， and related literature. In addition， their meridians for properties and tastes， medicinal parts， chemical components， and TCM classifications were summarized and statistically analyzed by using Excel 2013 and ChiPlot 2023.3.31 software. ResultIt was found that latex-containing plants were mainly distributed in one kingdom， one phylum， two classes， and 20 families， and most of the TCM from latex-containing plants belonged to Dicotyledonaceae under Angiosperms. In terms of properties and tastes， plain>cold>warm>cool>hot and bitter>pungent>sweet>sour>salty. In terms of meridians， liver>lung>kidney>spleen=large intestine=stomach>heart>bladder=gallbladder=small intestines. In terms of medicinal parts， roots （root， rhizomes， tuberous root， and root bark）>resin>seed>whole herb （whole herb and above-ground part）>stem （stem and branch）>fruit>leaf>flower=skin. In terms of research on chemical components， they were mostly glycosides. In terms of TCM classification， they were mostly medicines for activating blood circulation and removing blood stasis. ConclusionThe TCM from latex-containing plants is mainly plain， with a uniform warm and cold distribution. The tastes are mainly bitter and pungent， and the major meridians are the liver and lung. The roots and resins are mainly used as medicines. The components mostly contain glycosides， alkaloids， and volatile oils， and most of them are medicines for activating blood circulation and removing blood stasis， as well as for removing heat and toxins. There is a certain degree of correlation among the growth habits， medicinal parts， chemical components， and the properties， tastes， and efficacy of the TCM from latex-containing plants. It may provide a reference for resource development and utilization of TCM from latex-containing plants.

ObjectiveThe relevant laws among the biological characteristics， medicinal parts， growth environment， and medicinal properties and efficacy of traditional Chinese medicines （TCM） from fungi were excavated， so as to strengthen the theory of distinguishing symptoms for quality and provide a reference for the development and utilization of TCM from fungi. MethodThe medicinal parts， meridians for properties and tastes， heterotrophic mode， and efficacy of commonly used TCM from fungi were summarized. By consulting the Compendium of Materia Medica， Shennong Materia Medica， Flora of China， and literature， the TCM from fungi indexed in the 2020 edition of the Chinese Pharmacopoeia and some local pharmacopeias were checked. ResultA total of 28 common TCM from fungi were selected. Different TCMs from fungi have different meridians for properties and tastes， medicinal parts， habits， and growth environments. The relevant information was counted. Among the four properties， plain>cold>warm. Among the five tastes， sweet>bitter>light>pungent=salty. In terms of medicinal parts， fruiting body>sclerotia>complex>spermia=outer skin=other. In terms of meridians， lung>liver=heart>spleen=kidney>stomach. In terms of habits， parasitism>saprophysis>symbiosis=facultative parasitism=facultative saprophysis. ConclusionTCM from fungi are mainly parasitic and saprophytic， and the plain property and sweet taste the most. The meridians are mostly lung， heart， and liver. Nourishment and diuresis are the main efficacy. There is a certain correlation between the color， habit， medicinal parts， and growth environment of TCM from fungi and their properties， tastes， and efficacy， providing comprehensive literature reference and theoretical basis for their in-depth research， clinical use， and resource development.

ObjectiveTo investigate the functions and characteristics of traditional Chinese medicine （TCM） from plant skin and their Chinese patent medicines and explore the related laws of the medicinal tissue， property， taste， efficacy， and clinical application， so as to strengthen the theory of identifying symptoms for qualities and provide references for the development and utilization of TCM from plant skin and their Chinese patent medicines. MethodBy reviewing the 2020 edition of the Chinese Pharmacopoeia and some local pharmacopeias， TCM from plant skin and their Chinese patent medicines were screened out， and the characteristics， functions， and precautions of TCM from plant skin and their Chinese patent medicines were summarized. Statistical analysis was carried out with Excel. ResultA total of 62 TCM from plant skin were found， mainly distributed in one kingdom， three phyla， and 31 families. In terms of the family genus， Rutaceae>Leguminosae>Cucurbitaceae. In terms of the medicinal tissue， bark>root bark>fruit bark>seed bark. In terms of property and taste， warm>cold>plain>cool>hot， and bitter>sweet=pungent>acidic. In terms of meridians， lung>liver>spleen>heart>colorectal>kidney>stomach=bladder. In terms of TCM classification， most of them belong to the category of heat-clearing medicines. There were 485 types of Chinese patent medicines from plant skin， with the most Chinese patent medicines containing Citri Reticulatae Pericarpium. Among the forms of administration， pills were the most predominant. In terms of the tastes of the medicines， bitter and sweet flavors predominated. In terms of functions， medicines for strengthening the body resistance were the most. For the precautions， contraindications during pregnancy were the most common. ConclusionThere is a correlation among medicinal tissue， property， taste， efficacy， and clinical application of TCM from plant skin. It is also necessary to pay attention to the contraindications of the medicines and rationally choose TCM from plant skin and their Chinese patent medicines under the guidance of TCM theory based on syndrome differentiation and treatment.

OBJECTIVE To compare the efficacy and safety of Cefazolin sodium for injection， Cefuroxime sodium for injection， and Ceftazidime for injection from nationally organized centralized drug procurement （hereinafter referred to as “centralized procurement”） and non-centralized procurement in patients with bacterial infection. METHODS The case data of hospitalized patients who had used 3 kinds of Cephalosporins for injection from centralized procurement or non-centralized procurement in the treatment of bacterial infections were retrospectively collected from 19 medical institutions in Kunming from January 2020 to September 2022. After balancing the baseline differences between the groups with the propensity score matching method， the effectiveness and safety differences of 3 kinds of Cephalosporins for injection from centralized procurement or non- centralized procurement were compared respectively. RESULTS After balancing the baseline differences among the groups， 394 cases in each group of Cefazolin sodium for injection from centralized procurement or non-centralized procurement， 472 cases in each group of Cefuroxime sodium for injection from centralized procurement or non-centralized procurement， 504 cases in group of Ceftazidime for injection from centralized procurement and 590 cases in group of non-centralized procurement were included in the analysis. In terms of effectiveness， there were no significant differences in clinical response rate， 72 h response rate， bacterial clearance rate， and the recovery rate of body temperature， white blood cell count， neutrophil count， neutrophil percentage， C-reactive protein， procalcitonin recovery between the centralized procurement group and non-centralized procurement group of Cefazolin sodium for injection and Cefuroxime sodium for injection （P＞0.05）. The proportion of patients in centralized procurement group of Ceftazidime for injection with C-reactive protein restored to normal reference range was significantly higher than that in non-centralized procurement group （46.9% vs. 27.9%， P＜0.05）， but there were no statistically significant differences in other effectiveness indicators among groups （P＞0.05）. In terms of safety， there was no statistical difference in the incidence of adverse drug reactions between centralized procurement group and non-centralized procurement group of 3 kinds of Cephalosporins for injection （P＞0.05）； the incidence of platelet count reduction in centralized procurement group of Cefazolin sodium for injection was significantly higher than non-centralized procurement group （20.7% vs. 7.1%， P＜0.05）， the incidence of eosinophilia elevation in centralized procurement group of Ceftazidime for injection was significantly higher than non-centralized procurement group （5.3% vs. 1.9%， P＜0.05）. In addition， there was no statistically significant difference in the abnormal rates of other laboratory indicators among the three types of injection Cephalosporins （P＞ 0.05）. CONCLUSIONS The efficacy of 3 kinds of Cephalosporin for injection from centralized procurement is not inferior to non- centralized procurement varieties， and the safety is equivalent to that of non-centralized procurement varieties.