ObjectiveTo study the changing law of appearance color and physicochemical properties of Angelicae Sinensis Radix Carbonisata（ASRC） during the processing by color space method combined with statistical analysis， so as to provide reference for determining the processing endpoint and evaluating the quality of the decoction pieces. MethodsTaking processing time（4， 8， 12， 16 min） and temperature（180， 200， 220， 240 ℃） as factors， ASRC decoction pieces with different processing degrees were prepared in a completely randomized design. Then， the brightness value（L^*）， red-green value（a^*）， yellow-blue value（b^*）， and total chromaticity value （E^*ab） of the decoction pieces were determined by spectrophotometer， the color difference value（ΔE） was calculated， and the data of colorimetric values were analyzed by discriminant analysis. At the same time， the pH， charcoal adsorption， and contents of tannins， 5-hydroxymethylfurfural（5-HMF）， tryptophan， chlorogenic acid， ferulic acid， senkyunolide I， senkyunolide H and ligustilide of ASRC with different processing degrees were determined by pH meter， ultraviolet and visible spectrophotometry and ultra-high performance liquid chromatography（UPLC）. Principal component analysis（PCA） was used to analyze the data of physicochemical indexes， after determining the processing technology of ASRC， the canonical discriminant function was established to distinguish the decoction pieces with different processing degrees， and leave-one-out cross validation was conducted. Finally， Pearson correlation analysis was used to explore the correlation between various physicochemical indexes and chromaticity values. ResultsWith the prolongation of the processing time， L^*， a^*， b^* and E^*ab all showed a decreasing trend， and the established discriminant model based on color parameters was able to distinguish ASRC with different processing degrees. The pH showed an increasing trend with the prolongation of processing time， and the charcoal adsorption， and the contents of tannins， 5-HMF， and tryptophan all showed an increasing and then decreasing trend. Among them， the charcoal adsorption， contents of tannin and 5-HMF reached their maximum values successively after processing for 8-12 min. While the contents of chlorogenic acid， ferulic acid， senkyunolide I， senkyunolide H and ligustilide decreased with the increase of processing time， with a decrease of 60%-80% at 8 min of processing. Therefore， the optimal processing time should be determined to be 8-12 min. PCA could clearly distinguish ASRC with different processing degrees， while temperature had no significant effect on the processing degree. The 12 batches of process validation results（10 min， 180-240 ℃） showed that except for 3 batches identified as class Ⅱ light charcoal， all other batches were identified as class Ⅲ standard charcoal， and the chromaticity values of each batch of ASRC were within the reference range of class Ⅱ-Ⅲ sample chromaticity values. The correlation analysis showed that the chromaticity values were negatively correlated with pH and charcoal adsorption， and positively correlated with contents of tryptophan， chlorogenic acid， ferulic acid， senkyunolide I， senkyunolide H， and ligustilide. And both pH and charcoal adsorption were negatively correlated with the contents of the above components， but the charcoal adsorption was positively correlated with the content of 5-HMF. ConclusionThe chromaticity values and the contents of various physicochemical indicators of ASRC undergo significant changes with the prolongation of processing time， and there is a general correlation between chromaticity values and various physicochemical indicators. Based on the changes in color and physicochemical indicators， the optimal processing time for ASRC is determined to be 8-12 min. This study reveals the dynamic changes of the relevant indexes in the processing of ASRC， which can provide a reference for the discrimination of the processing degree and the quantitative study of the processing endpoint.

ObjectiveTo establish a method for the identification of Haliotidis Concha and its counterfeits， and to improve its quality evaluation method. MethodsA total of 17 batches of Haliotis discus hannai， 4 batches of H. ruber， 3 batches of H. laevigata， 3 batches of H. ovina， 3 batches of H. diversicolor， 3 batches of H. asinina， 3 batches of H. iris were collected. Ultra-high performance liquid chromatography-quadrupole/electrostatic field orbitrap high-resolution mass spectrometry（UPLC-Q-Exactive-Orbitrap-MS/MS） was used to analyze the hydrolysates of different original Haliotidis Concha and its counterfeits， and the potential characteristic ions of each species were screened by Venn diagram. UPLC-triple quadrupole tandem mass spectrometry（UPLC-QqQ-MS/MS） was used to validate the characteristic ions， and the specific detection method of the characteristic ions was established. ResultsA total of 1 182， 167， 47， 89， 104， 203， 424 potential characteristic ions were screened from H. discus hannai， H. ruber， H. laevigata， H. ovina， H. diversicolor， H. asinina and H. iris， respectively. And 9 characteristic ions were selected. The precision， stability and repeatability of the 9 characteristic ions in the established identification method met the requirements. Different original Haliotidis Concha and its counterfeits could detect their own characteristic ions， including m/z 631.83-886.48（double charge） and m/z 631.83-443.74（double charge） of H. discus hannai， m/z 699.28-232.11（double charge） and m/z 699.28-544.27（double charge） of H. ruber， m/z 535.76-752.37（double charge） and m/z 535.76-548.28（double charge） of H. laevigata， m/z 708.35-442.28（double charge） and m/z 708.35-215.14（double charge） of H. ovina， m/z 561.33-614.86（triple charge）， m/z 561.33-468.28（triple charge）， m/z 608.29-618.32（double charge） and m/z 608.29-390.21（double charge） of H. diversicolor， m/z 769.85-274.10（double charge）， m/z 769.85-532.75（double charge）， m/z 827.43-646.36（single charge）， m/z 827.43-257.12（single charge） of H. asinina， and m/z 468.24-576.29（double charge） and m/z 468.24-505.26（double charge） of H. iris. ConclusionIn this study， a total of 9 characteristic ions are screened from 6 kinds of original Haliotidis Concha and its counterfeits， and a specific identification method is established， which is helpful to solve the limitations of the existing quality evaluation methods of Haliotidis Concha， and provide a basis for the production， circulation and medication quality.

ObjectiveTo establish a method for the identification of Haliotidis Concha and its counterfeits， and to improve its quality evaluation method. MethodsA total of 17 batches of Haliotis discus hannai， 4 batches of H. ruber， 3 batches of H. laevigata， 3 batches of H. ovina， 3 batches of H. diversicolor， 3 batches of H. asinina， 3 batches of H. iris were collected. Ultra-high performance liquid chromatography-quadrupole/electrostatic field orbitrap high-resolution mass spectrometry（UPLC-Q-Exactive-Orbitrap-MS/MS） was used to analyze the hydrolysates of different original Haliotidis Concha and its counterfeits， and the potential characteristic ions of each species were screened by Venn diagram. UPLC-triple quadrupole tandem mass spectrometry（UPLC-QqQ-MS/MS） was used to validate the characteristic ions， and the specific detection method of the characteristic ions was established. ResultsA total of 1 182， 167， 47， 89， 104， 203， 424 potential characteristic ions were screened from H. discus hannai， H. ruber， H. laevigata， H. ovina， H. diversicolor， H. asinina and H. iris， respectively. And 9 characteristic ions were selected. The precision， stability and repeatability of the 9 characteristic ions in the established identification method met the requirements. Different original Haliotidis Concha and its counterfeits could detect their own characteristic ions， including m/z 631.83-886.48（double charge） and m/z 631.83-443.74（double charge） of H. discus hannai， m/z 699.28-232.11（double charge） and m/z 699.28-544.27（double charge） of H. ruber， m/z 535.76-752.37（double charge） and m/z 535.76-548.28（double charge） of H. laevigata， m/z 708.35-442.28（double charge） and m/z 708.35-215.14（double charge） of H. ovina， m/z 561.33-614.86（triple charge）， m/z 561.33-468.28（triple charge）， m/z 608.29-618.32（double charge） and m/z 608.29-390.21（double charge） of H. diversicolor， m/z 769.85-274.10（double charge）， m/z 769.85-532.75（double charge）， m/z 827.43-646.36（single charge）， m/z 827.43-257.12（single charge） of H. asinina， and m/z 468.24-576.29（double charge） and m/z 468.24-505.26（double charge） of H. iris. ConclusionIn this study， a total of 9 characteristic ions are screened from 6 kinds of original Haliotidis Concha and its counterfeits， and a specific identification method is established， which is helpful to solve the limitations of the existing quality evaluation methods of Haliotidis Concha， and provide a basis for the production， circulation and medication quality.

Objective To explore the clinical value of artificial intelligence (AI) quantitative parameters in distinguishing pathological grades of stageⅠ invasive adenocarcinoma (IAC). Methods Clinical data of patients with clinical stageⅠ IAC admitted to Yantaishan Hospital Affiliated to Binzhou Medical University from October 2018 to May 2023 were retrospectively analyzed. Based on the 2021 WHO pathological grading criteria for lung adenocarcinoma, IAC was divided into gradeⅠ, grade Ⅱ, and grade Ⅲ. The differences in parameters among the groups were compared, and logistic regression analysis was used to evaluate the predictive efficacy of AI quantitative parameters for grade Ⅲ IAC patients. Parameters were screened using least absolute shrinkage and selection operator (LASSO) regression analysis. Three machine learning models were constructed based on these parameters to predict grade Ⅲ IAC and were internally validated to assess their efficacy. Nomograms were used for visualization. Results A total of 261 IAC patients were included, including 101 males and 160 females, with an average age of 27-88 (61.96±9.17) years. Six patients had dual primary lesions, and different lesions from the same patient were analyzed as independent samples. There were 48 patients of gradeⅠ IAC, 89 patients of grade Ⅱ IAC, and 130 patients of grade Ⅲ IAC. There were statitical differences in the AI quantitive parameters such as consolidation/tumor ratio (CTR), ect among the three goups. (P<0.05). Univariate analysis showed that the differences in all variables except age were statistically significant (P<0.05) between the group gradeⅠ+grade Ⅱand the group grade Ⅲ . Multivariate analysis suggested that CTR and CT standard deviation were independent risk factors for identifying grade Ⅲ IAC, and the two were negatively correlated. Grade Ⅲ IAC exhibited advanced TNM staging, more pathological high-risk factors, higher lymph node metastasis rate, and higher proportion of advanced structure. CTR was positively correlated with the proportion of advanced structures in all patients. This correlation was also observed in grade Ⅲ but not in gradeⅠand grade ⅡIAC. CTR and CT median value were selected by using LASSO regression. Logistic regression, random forest, and XGBoost models were constructed and validated, among which, the XGBoost model demonstrated the best predictive performance. Conclusion Cautious consideration should be given to grade Ⅲ IAC when CTR is higher than 39.48% and CT standard deviation is less than 122.75 HU. The XGBoost model based on combined CTR and CT median value has good predictive efficacy for grade Ⅲ IAC, aiding clinicians in making personalized clinical decisions.

OBJECTIVE: To evaluate the effectiveness of tibial nerve transection with epineurial suture and division of the common plantar digital nerve branches in the treatment of congenital macrodactyly in children. METHODS: A retrospective analysis was conducted on clinical data from 9 children with congenital macrodactyly who met the selection criteria and were admitted between January 2018 and December 2024. The cohort included 4 boys and 5 girls, aged 1-6 years (median, 3 years). Syndactyly of the second and third toes was present in 2 patients. Hypertrophy distribution was as follows: 1 case of single-ray involvement, 4 of double-ray, 1 of triple-ray, 1 of quadruple-ray, and 2 of quintuple-ray. Preoperatively, 7 cases exhibited limitations in both active and passive flexion and extension of the affected toes; in 2 cases, active movement was restricted while passive motion remained intact. All 9 children were unable to wear standard-sized footwear for the unaffected foot. Six presented with a limp, and 3 had difficulty walking. All 9 cases were moderate to severe progressive macrodactyly, and the growth rate of the affected foot was significantly faster than that of the healthy side. Six cases had undergone prior surgical interventions at other institutions, but disease progression continued postoperatively. All 9 patients underwent tibial nerve transection with epineurial suture and selective division of the common plantar digital nerve branches. At last follow-up, the foot growth rate was calculated (compared with that immediately after operation), and the changes of plantar pain sensation in the affected foot were detected before operation, immediately after operation, and at last follow-up, and the surgical efficacy was evaluated based on improvements in shoe fit and gait function. RESULTS: All 9 children were followed up 6-36 months, with an average of 18 months. All the incisions healed by first intention, and no infection or plantar ulceration occurred. At last follow-up, the growth rate of the affected foot was 0.10 (0.04, 0.14) cm/month, which was significantly slower than that of the healthy foot [0.14 (0.08, 0.18) cm/month] ( Z=3.951, P<0.001). Preoperatively, plantar pain sensation was absent in all cases; it was restored immediately after operation. At last follow-up, 6 patients had absent pain sensation, 2 had partial preservation (involving certain toes and central plantar regions), and 1 patient (with 3-year follow-up) exhibited regained sensation in multiple plantar areas. Gait improved in most cases, in which 8 children achieved normal ambulation, while 1 continued to limp due to leg-length discrepancy. Surgical efficacy were rated as excellent in 1 case, good in 7, and fair in 1. CONCLUSION Tibial nerve transection with epineurial suture combined with selective division of the common plantar digital nerve branches effectively reduces the growth rate of congenital macrodactyly in children, has minimal impact on plantar sensory function, and does not result in plantar ulcers or impaired ambulation.
Humans ; Male ; Female ; Child, Preschool ; Child ; Retrospective Studies ; Infant ; Tibial Nerve/surgery* ; Toes/surgery* ; Treatment Outcome ; Suture Techniques ; Fingers/surgery* ; Foot/innervation* ; Limb Deformities, Congenital

To address the problem of large reconstruction errors in 3D pulse signals caused by excessively small out-of-plane displacement of the contact membrane in the existing traditional Chinese medicine fingertip tactile binocular vision detection technology, this study proposes a 3D pulse image detection method based on subtle motion magnification technology and explores its application in pulse pattern recognition. Firstly, a 3D pulse image detection system based on binocular vision to obtain pulse image signals is developed as experimental data. Then, the phase motion video magnification algorithm is used to amplify the original signals, and the amplified signals are reconstructed in three dimensions to obtain 3D pulse signals. On this basis, nine features are extracted from the 3D pulse signals and features selection is performed using a two-sample Kolmogorov-Smirnov test. Finally, machine learning algorithms such as decision trees and random forests are used to identify the five types of pulse conditions: deep pulse, intermittent pulse, flooding pulse, slippery pulse, and rapid pulse. The experimental results show that compared to the methods without subtle motion magnification technology, the proposed method significantly improves waveform clarity, amplitude stability, and periodic regularity. Meanwhile, the average accuracy in pulse pattern recognition reaches 96.29%±0.26%.
Algorithms ; Imaging, Three-Dimensional/methods* ; Pattern Recognition, Automated ; Medicine, Chinese Traditional ; Motion ; Humans ; Pulse ; Signal Processing, Computer-Assisted ; Machine Learning

Microglial pyroptosis and neuroinflammation have been implicated in the pathogenesis of sepsis-associated encephalopathy (SAE). OGT-mediated O-GlcNAcylation is involved in neurodevelopment and injury. However, its regulatory function in microglial pyroptosis and involvement in SAE remains unclear. In this study, we demonstrated that OGT deficiency augmented microglial pyroptosis and exacerbated secondary neuronal injury. Furthermore, OGT inhibition impaired cognitive function in healthy mice and accelerated the progression in SAE mice. Mechanistically, OGT-mediated O-GlcNAcylation of ATF2 at Ser44 inhibited its phosphorylation and nuclear translocation, thereby amplifying NLRP3 inflammasome activation and promoting inflammatory cytokine production in microglia in response to LPS/Nigericin stimulation. In conclusion, this study uncovers the critical role of OGT-mediated O-GlcNAcylation in modulating microglial activity through the regulation of ATF2 and thus protects against SAE progression.
Animals ; Microglia/metabolism* ; Pyroptosis/physiology* ; Mice ; Sepsis-Associated Encephalopathy/prevention & control* ; Activating Transcription Factor 2/metabolism* ; N-Acetylglucosaminyltransferases/genetics* ; Mice, Inbred C57BL ; Male ; Mice, Knockout

Objective To explore the correlation between serum thymosin α1 level and left ventricular ejection fraction(LVEF)in patients with acute anterior wall ST-segment elevation myocardial infarction(STEMI)after receiving percutaneous coronary intervention(PCI).Methods A total of 74 patients with acute anterior wall STEMI(acute anterior wall STEMI group)and 38 patients having no myocardial infarction(control group),who were admitted to the Shanghai Sixth People's Hospital of China from December 2019 to February 2022,were enrolled in this study.According to the LVEF value after the recanalization of anterior descending coronary artery with PCI during hospitalization period,the patients of acute anterior wall STEMI group were divided into LVEF＜50％subgroup(n=33)and LVEF≥50％subgroup(n=41).Serum thymosin α1 level was determined by enzyme linked immunosorbent assay(ELISA),the results were compared between the groups.Logistic regression analysis was used to analyze the correlation between thymosin α1 level and LVEF.The receiver operating characteristic(ROC)curve of serum thymosin α1 level for predicting cardiac function in patients with acute anterior wall STEMI after receiving PCI was drawn.Results The serum thymosin α1 level in LVEF≥50％subgroup was significantly higher than that in the LVEF＜50％subgroup(P=0.032).During the post-PCI hospitalization period,the serum thymosin α1 level was positively correlated with LVEF.Logistic regression analysis revealed that serum thymosin α1 level was an independent predictor for LVEF＜50％in patients with acute anterior wall STEMI after receiving PCI.The area under ROC of serum thymosin α1 level for predicting LVEF≥50％in patients with acute anterior wall STEMI during hospitalization was 0.644(P=0.034).The area under ROC of serum thymosin α1 level combined with peak troponin I level and with peak NT-proBNP level for predicting LVEF＜50％in patients with acute anterior wall STEMI during hospitalization was 0.780(P＜0.01)and 0.702(P=0.003)respectively.When taking the median serum thymosin α1 level as the cut-off value,the proportion of LVEF≥50％patients was higher among the patients having the post-PCI serum thymosin α1 level＞2,890 ng/L.Conclusion In patients with acute anterior wall STEMI,the serum thymosin α1 level is closely related to the LVEF value during the post-PCI hospitalization period,it is an independent predictor for cardiac function improvement after PCI.It is expected that the serum thymosin α1 level may become a new indicator for predicting the improvement of cardiac function in patients with STEMI after recanalization of anterior descending coronary artery with PCI.

Objective:To investigate diagnosis and treatment methods of nontuberculous mycobacteria (NTM) infections related to cosmetic surgery.Methods:This study was a retrospective observational study. From January 2015 to December 2023, 24 patients with NTM infections related to cosmetic surgery meeting the inclusion criteria were admitted to Shenzhen Hospital of Southern Medical University and Northern Theater Command General Hospital, all of whom were female and aged 29-51 years. Among them, 20 cases underwent lipolysis needle injection surgery, 2 cases underwent facial contouring surgery, 1 case underwent foreign body injection, and 1 case underwent wrinkle removal surgery. The clinical manifestations of infections caused by NTM included scattered dark purplish subcutaneous nodules at the infection site with unclear boundaries, thinning of the skin on the surface of the nodules and ulceration, and powdery-white fish meat like tissue and a small amount of light yellow exudation being seen at the ulceration. In order to improve the detection rate of NTM, bacterial culture of wound exudation combined with solid tissue samples, multiple bacterial cultures, and extending culture time were performed. All patients were treated with damage control debridement on the infected site and comprehensive treatment including the use of antibiotics based on the results of drug sensitivity tests. The types of NTM infections, drug sensitivity test results, wound healing time, number of bacterial cultures, and surgical debridement times were recorded. The wound healing was observed during follow-up.Results:The bacterial culture results showed that there were 22 cases of infections with Mycobacterium abscessus and 2 cases with Mycobacterium fortuitum. The drug sensitivity test results showed that the NTM was sensitive to antibiotics such as clarithromycin, amikacin, and doxycycline. The average healing time of the wound was 83.6 days with an average of 2.85 times bacterial cultures on the specimen, and an average of 2.52 times of debridement surgery. Follow up for 6 months to 5 years, all wounds of the patients were healed. Among them, 22 patients had a basically normal appearance with slight scars, while 2 patients had obvious scars and depressions. Conclusions:It is difficult to treat NTM infections related to cosmetic surgery. Damage control debridement for the infected site can ensure wound healing and reduce the damage and postoperative deformities in facial and other cosmetic areas.

Objective To analyze the detection rate of carbapenem-resistant Klebsiella pneumoniae(CRKP)in Guangdong Provincial Second Hospital of Traditional Chinese Medicine(the hospital)and analyze the main drug resistance genes and virulence genes of CRKP,so as to understand the molecular epidemiologi-cal mechanism of its infection strains.Methods The detection rate of CRKP infection in the hospital from 2020 to 2023 was retrospectively analyzed,and a total of 84 strains of CRKP were collected from July to De-cember 2022 in the hospital.The clinical data of the strains were collected,and the corresponding drug resist-ance genes and virulence genes were amplified by PCR.The modified carbapenem inactivation method(mCIM)was uesd to detect carbapenemase.Results The detection rates of CRKP in the Guangdong Provincial Second Hospital of Traditional Chinese Medicine from 2020 to 2023 were relatively high,and were higher than 46.00％.84 non-repeated CRKP strains were collected from July to December of 2022,and most samples were from respiratory tract,accounting for 55.95％.The patients were mainly from acupuncture and rehabilitation departments,accounting for 34.52％.Drug sensitivity tests showed that CRKP was highly resistant to various cephalosporin and extended spectrum beta lactam drugs,and only showed high sensitivity to tigecycline and polymyxin.The positive rate of mCIM test was 84.52％(71/84),and the other 15.48％results were neutral,which failed to determine whether they produced carbapenemase.A total of 73 strains were detected with car-bapenemase gene,accounting for 86.90％,involving 4 genotypes.The detection rates of blaKPC,blaNDM,blaIMP,and blaOXA-48 were 83.33％,2.38％,1.19％,and 1.19％,respectively.One of them carried both blaKPC and blaNDM genes,and multiple β-lactamases were detected.The detection rates of blaSHV,bla-TEM,blaCTX-M-9,and blaCTX-M-1 were 96.43％,78.57％,64.29％,and 2.38％,respectively.The detection rates of five virulence genes,blaiucA,blarmpA2,blairoB,blapeg-334,and blarmpA,were 42.86％,41.67％,27.38％,3.57％,and 2.38％,respectively.The proportion of strains carrying three or more virulence genes was 17.85％(15/84).Conclusion The detection rate of CRKP in the hospital is relatively high,and the drug resistance situation is serious,with Klebsiella pneumoniae carbapenemase(KPC)as the main drug resistance gene.A high proportion of Carbapenem-resistant hypervirulent Klebsiella pneumoniae(CR-hvKp)strains is found,and the infection prevention and control situation is not optimistic.It is necessary to further strengthen the hospital infection control measures and standardize the scientific and reasonable drug use.