Objective: To investigate the objective characteristics of tongue manifestation in different stages of damp-heat syndrome in diabetic kidney disease (DKD). Methods: A cross-sectional study enrolled 134 patients with DKD G3-5 stages who met the diagnostic criteria for damp-heat syndrome in DKD. The patients were treated at Dongzhimen Hospital, Beijing University of Chinese Medicine, from May 2023 to January 2024. The patients were divided into three groups: DKD G3, DKD G4, and DKD G5 stage, with 53, 33, and 48 patients in each group, respectively. Clinical general data (gender, age, and body mass index) and damp-heat syndrome scores were collected from the patients. The YZAI-02 traditional Chinese medicine (TCM) AI Tongue Image Acquisition Device was used to capture tongue images from these patients. The accompanying AI Open Platform for TCM Tongue Diagnosis of the device was used to analyze and extract tongue manifestation features, including objective data on tongue color, tongue quality, coating color, and coating texture. Clinical data and objective tongue manifestation characteristics were compared among patients with DKD G3-5 based on their DKD damp-heat syndrome status. Results: No statistically significant difference in gender or body mass index was observed among the three patient groups. The DKD G3 stage group had the highest age (P<0.05). The DKD G3 stage group had a lower score for symptoms of poor appetite and anorexia(P<0.05) than the DKD G5 group. No statistically significant difference was observed in damp-heat syndrome scores among the three groups. Compared with the DKD G5 stage group, the DKD G3 stage group showed a decreased proportion of pale color at the tip and edges of the tongue (P<0.05). The DKD G4 stage group exhibited an increased proportion of crimson at the root of the tongue, a decreased proportion of thick white tongue coating at the root, a decreased proportion of pale color at the tip and edges of the tongue, an increased hue value (indicating color tone) of the tongue color in the middle, an increased brightness value (indicating color lightness) of the tongue coating color in the middle, and an increased thickness of the tongue coating (P<0.05). No statistically significant difference was observed in other tongue color proportions, color chroma values, body characteristics, coating color proportions, coating color chroma values, and coating texture characteristics among the three groups. Conclusion Tongue features differ in different stages of DKD damp-heat syndrome in multiple dimensions, enabling the inference that during the DKD G5 stage, the degree of qi and blood deficiency in the kidneys, heart, lungs, liver, gallbladder, spleen, and stomach is prominent. Dampness is more likely to accumulate in the lower jiao, particularly in the kidneys, whereas heat evil in the spleen and stomach is the most severe. These insights provide novel ideas for the clinical treatment of DKD.

ObjectiveTo investigate the effects of berbamine hydrochloride on sorafenib resistance in hepatocellular carcinoma cells and the underlying mechanisms. MethodThe sorafenib-resistant cell line SMMC-7721/S was selected by the concentration increment method starting at 1.25 μmol·L^-1 sorafenib. Both SMMC-7721 and SMMC-7721/S cells were treated with 0， 2.5， 5， 10， 15， 20 μmol·L^-1 sorafenib， and the cell counting kit-8 （CCK-8） assay was employed to determine the half maximal inhibitory concentration （IC₅₀） and calculate the resistance index （RI）. Western blot was conducted to compare the expression of proteins involved in autophagy and phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin （PI3K/Akt/mTOR） signaling pathway between SMMC-7721 and SMMC-7721/S cells. Furthermore， SMMC-7721/S cells were treated with 5 μmol·L^-1 berbamine hydrochloride alone or in combination with 2.5， 5， 10 μmol·L^-1 sorafenib， and the cell growth was assessed by the CCK-8 assay. In addition， SMMC-7721 and SMMC-7721/S cells were treated with 5 μmol·L^-1 berbamine hydrochloride alone or in combination with 5 μmol·L^-1 sorafenib， and the cell proliferation was examined by the colony formation assay. The immunofluorescence assays with Microtubule-associated protein 1 light chain 3 （LC3） and LysoTracker as probes were employed to assess the lysosomal acidification in SMMC-7721 cells treated with 5 μmol·L^-1 berbamine hydrochloride or 0.1 μmol·L^-1 autophagy inhibitor bafilomycin A1 （Baf）. Further， the expression of proteins involved in autophagy and PI3K/Akt/mTOR signaling pathway was determined by Western blot and compared between groups. ResultSorafenib showed the IC₅₀ of 9.56 mol·L^-1 （P<0.01） and 7.99 mol·L^-1 for SMMC-7721/S and SMMC-7721 cells， respectively， at 24 h. The resistance index （RI） of SMMC-7721/S for sorafenib was 1.20 （P<0.01）， which indicated mild resistance. Compared with SMMC-7721 cells， SMMC-7721/S cells exhibited up-regulated expression of p-mTOR， p-Akt， and LC3Ⅱ， down-regulated expression of p62 protein （P<0.01）， and unchanged Akt protein level. CCK-8 and colony formation assays demonstrated that the combination of berbamine hydrochloride and sorafenib exhibited a synergistic effect （Q>1.15）， with berbamine hydrochloride partially reversing the resistance of liver cancer cells to sorafenib. The immunofluorescence detection of LC3 revealed that berbamine hydrochloride and Baf significantly increased LC3 in SMMC-7721 cells. The detection with LysoTracker as the probe showed that berbamine hydrochloride inhibited the acidity of lysosomes in SMMC-7721 cells （P<0.01）， indicating the suppression of autophagy. Berbamine hydrochloride further enhanced the downregulation of p-mTOR and p-Akt protein levels and did not change the Akt protein level in SMMC-7721 cells exposed to sorafenib. Berbamine hydrochloride inhibited the increase in p-mTOR expression， down-regulated the p-Akt protein level， and did not change the total Akt protein level in the SMMC-7721/S cells exposed to sorafenib. ConclusionBerbamine hydrochloride can ameliorate the resistance of liver cancer cells to sorafenib by inhibiting cellular autophagy and the PI3K/Akt/mTOR signaling pathway.

Objective: Progressive supranuclear palsy (PSP) involves a variety of visual symptoms that are thought to be partially caused by structural abnormalities of the retina. However, the relationship between retinal structural changes, disease severity, and intracranial alterations remains unknown. We investigated distinct retinal thinning patterns and their relationship with clinical severity and intracranial alterations in a PSP cohort. Methods: We enrolled 19 patients with PSP (38 eyes) and 20 age-matched healthy controls (40 eyes). All of the participants underwent peripapillary and macular optical coherence tomography. Brain 11C-2β-carbomethoxy-3β-(4-fluorophenyl) tropane (11C-CFT) and 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography imaging were also performed in patients with PSP. We investigated the association between retinal thickness changes and clinical features, striatal dopamine transporter availability, and cerebral glucose metabolism. Results: The peripapillary retinal nerve fiber layer (pRNFL) and macula were significantly thinner in patients with PSP than in controls. The thickness of the superior sector of the pRNFL demonstrated a significant negative relationship with the Movement Disorder Society-Unified Parkinson’s Disease Rating Scale part III and Hoehn and Yahr staging scale scores. A significant negative correlation was found between outer inferior macular thickness and disease duration. Outer temporal macular thickness was positively correlated with Montreal Cognitive Assessment scores. In PSP, lower outer temporal macular thickness was also positively correlated with decreased dopamine transporter binding in the caudate. Conclusion The pRNFL and macular thinning may be candidate markers for monitoring disease severity. Additionally, macular thinning may be an in vivo indicator of nigrostriatal dopaminergic cell degeneration in PSP patients.

Objective:To investigate the early and middle term clinical efficacies of 3D-printed metal prostheses in the reconstruction of bone defects after osteotomy in malignant bone tumors.Methods:A total of 34 patients with malignant bone tumors of lower extremity femur and tibia who underwent 3D printing individualized metal prosthesis replacement surgery in the Department of Bone and Soft Tissue of Affiliated Cancer Hospital of Zhengzhou University from March 2019 to March 2022 were retrospectively analyzed. There were 23 males and 11 females, with an average age of 19.1±15.2 years (range, 7-80 years). There were 22 children and adolescents younger than 18 years old. There were 3 cases in the proximal femur, 15 cases in the middle and distal femur, 10 cases in the proximal tibia and 6 cases in the distal tibia. According to the final pathological diagnosis, 24 cases of osteosarcoma, 6 cases of Ewing's sarcoma, 2 cases of undifferentiated sarcoma, 1 case of osteosarcoma, and 1 case of malignant giant cell tumor of bone were enrolled in this study. Postoperative complications, wound healing, periprosthetic fracture and aseptic loosening, tumor outcome (evaluated by tumor control evaluation criteria), and length difference of lower limbs were recorded. Response evaluation criteria in solid tumor (RECIST) was used to evaluate tumor outcomes. Prosthetic-bone interface healing was evaluated postoperatively, and the function was evaluated based on Musculoskeletal Oncology Society (MSTS) 93.Results:The length of lesions was 70-240 mm in 34 patients, with an average of 125.5±35.4 mm. The length of osteotomy was 80-275 mm, with an average of 160.2±33.9 mm. No tumor was found on the osteotomy surface. The customized prosthesis was firmly installed and closely matched with the side of the preserved articular surface. There were 2 patients with local incision fat liquefaction and 4 patients with superficial wound infection, which healed after debridement and antibiotic treatment. One distal tibia osteosarcoma case developed severe periprosthetic infection 2 months after surgery, resulting in prosthesis implantation failure, limb movement pain and poor ankle function. After removal of the prosthesis, infection control and osteogenesis with the Ilizarov technique, the infection was completely controlled and local osteogenesis was possible. The remaining 33 patients had a good prosthetic-bone interface union. One case was found to have localized bone resorption on the contact surface of the prosthesis 7 months after operation, but the metal prosthesis and screws were not loose. The incisions healed well in other patients, without infection, prosthesis loosening, fracture or other complications. All patients survived and were followed up for 13.8±5.6 months (range, 7-27 months). During the follow-up, there was no recurrence of tumor at the osteotomy end in all patients, but 5 patients developed lung metastasis. At the end of the last follow-up, all patients survived. Among them, 16 patients had unequal length of lower limbs, including 10 cases within 2 cm, 3 cases between 2-5 cm, and 3 cases over 5 cm. With the exception of one patient whose prosthesis was removed due to infection, the MSTS 93 of the other patients was 24.9±2.2 (range, 19-28), and were rated as excellent in 26 cases and good in 7 cases. According to the RECIST evaluation criteria, 26 of 34 patients had complete response, 5 had disease progression, and 3 had stable disease.Conclusion:3D printed metal prosthesis is one of the effective methods for the treatment of bone defects after resection of malignant bone tumors in lower limbs, which is safe, reliable and has satisfactory early curative effect.

Objective:To analyze the prognosis of glucose metabolism and its impacting factors at 6-12 weeks postpartum in patients with abnormal blood glucose during pregnancy.Methods:In this cross-sectional study, a total of 192 patients with abnormal blood glucose during pregnancy enrolled and delivered in the maternity clinic of Daxing Teaching Hospital of Capital Medical University from December 1, 2019 to December 31, 2020 were collected. The 75 g oral glucose tolerance test (OGTT) was applied for diabetes screening at 6-12 weeks after delivery. According to the results of postpartum blood glucose, the patients were divided into two groups: postpartum normal blood glucose group (148 cases) and abnormal blood glucose group (44 cases). Hypothesis testing was used to compare the clinical data before, during and after the pregnancy between the two groups. Multi-factor logistic regression was performed to analyze the influencing factors of postpartum abnormal blood glucose in patients with abnormal blood glucose during pregnancy.Results:Among the 192 patients with abnormal blood glucose during pregnancy, the incidence of postpartum abnormal blood glucose was 22.92% (44/192), including 6 cases of diabetes mellitus (DM) (13.64%), 38 cases of impaired glucose tolerance (IGT) (86.36%). Neck circumference, waist circumference, multiparous women and insulin use during pregnancy in postpartum abnormal blood glucose group were all significantly higher than those in postpartum normal blood glucose group [34.25(33.00, 36.00) vs 33.55 (32.00, 35.00) cm, 87.00 (82.00, 93.00) vs 84.00 (78.00, 90.00) cm, 54.55% vs 37.16%, 18.18% vs 6.76%] (all P<0.05). Neck circumference ( OR=1.315, 95% CI: 1.026-1.685), multiparous women ( OR=2.261, 95% CI: 1.057-4.836), insulin use during pregnancy ( OR=3.767, 95% CI: 1.236-11.478) were positively correlated with the occurrence of postpartum abnormal blood glucose (all P<0.05). Conclusions:The incidence of postpartum abnormal blood glucose is high at 6-12 weeks postpartum in patients with abnormal blood glucose during pregnancy. Neck circumference, waist circumference, parity and insulin use during pregnancy are important impacting factors of postpartum abnormal blood glucose.

A method was developed for determination of thirteen amines including seven aliphatic amines, two heterocyclic amines and four aromatic amines in atmospheric particulate matter (PM) by gas chromatography-mass spectrometry (GC-MS). Samples were ultrasonically extracted with ultra-pure water and derivatized with benzenesulfonyl chloride (BSC) under alkaline conditions. The derivatives were extracted with dichloromethane and then detected by GC-MS using DB-5MS chromatographic column. The method detection limit (S/N=3) and quantitation limit (S/N=10) were 0.00008-0.017 μg/mL and 0.00026-0.0565 μg/mL respectively, and the correlation coefficients were 0.9903-0.9996, which indicated that the standard curve had good linear correlation. In addition, the relative standard deviation was less than 30％ and the average recovery was 54.4％-159.7％ except for methylamine and benzylamine at spiked level of 1.0 μg/mL, showing high precision and accuracy. 9 kinds of amines were detected in the PM2.5 samples collected in Guangzhou city by this method, among which dimethylamine and butylamine accounted for 90％ of the total nine amines, which indicated that they were primary amines in PM2.5; while propylamine exhibited the lowest level in PM2.5 with the concentration less than 1.0 ng/m3.

Objective To investigate the critical value of TSH-stimulated Tg(sTg) in the diagnosis of metastasis from DTC, and to evaluate the diagnostic value of the ratio of sTg to suppressed Tg (sTg/suppressed Tg).Methods A total of 330 post-operative DTC patients(87 males, 243 females, age range: 12-70 years)who underwent thyroid remnant ablation from August 2008 to December 2014 were retrospectively reviewed.Their serum TgAb levels were normal.The patients were divided into non-metastasis group(147 cases)and metastasis group(183 cases) according to results of ultrasonography, CT and WBS.The difference of sTg between the two groups were compared by Mann-Whitney rank sum test.ROC curve was used to analyze the relationship between sTg, sTg/suppressed Tg ratio and metastasis, the cutoff value was calculated.Results The sTg was significantly different between the non-metastasis group and metastasis group: 1.0 (0.1, 2.0) μg/L vs 36.5 (3.9, 126.7) μg/L;u=-6.642, P<0.05.The AUC for ROC curve in metastasis group was 0.85, and the cutoff value was 2.05 μg/L, with the sensitivity 85.2%, specificity 67.3%, and accuracy 82.3%.While sTg<2.05 μg/L, the AUC of sTg/suppressed Tg ratio was 0.941, and the cutoff value was 4.3, with the sensitivity 93.3%, specificity 88.2%, and accuracy 92.3%.Conclusions The sTg has a specific value for the diagnosis of metastasis from DTC after operation and the cutoff value is 2.05 μg/L in this set of patients.The ratio of sTg/suppressed Tg could be used to correct the sTg and to improve the diagnostic sensitivity.

Objective To investigate the critical value of TSH-stimulated Tg(sTg) in the diagnosis of metastasis from DTC,and to evaluate the diagnostic value of the ratio of sTg to suppressed Tg (sTg/suppressed Tg).Methods A total of 330 post-operative DTC patients(87 males,243 females,age range:12-70 years)who underwent thyroid remnant ablation from August 2008 to December 2014 were retrospectively reviewed.Their serum TgAb levels were normal.The patients were divided into non-metastasis group (147 cases) and metastasis group(183 cases) according to results of ultrasonography,CT and WBS.The difference of sTg between the two groups were compared by Mann-Whitney rank sum test.ROC curve was used to analyze the relationship between sTg,sTg/suppressed Tg ratio and metastasis,the cutoff value was calculated.Results The sTg was significantly different between the non-metastasis group and metastasis group:1.0 (0.1,2.0) μg/L vs 36.5 (3.9,126.7) μg/L;u=-6.642,P＜0.05.The AUC for ROC curve in metastasis group was 0.85,and the cutoff value was 2.05 μg/L,with the sensitivity 85.2％,specificity 67.3％,and accuracy 82.3％.While sTg＜2.05 μg/L,the AUC of sTg/suppressed Tg ratio was 0.941,and the cutoff value was 4.3,with the sensitivity 93.3％,specificity 88.2％,and accuracy 92.3％.Conclusions The sTg has a specific value for the diagnosis of metastasis from DTC after operation and the cutoff value is 2.05 μg/L in this set of patients.The ratio of sTg/suppressed Tg could be used to correct the sTg and to improve the diagnostic sensitivity.

Objective To observe the dynamics of F1 antibody and immunoglobulin M (IgM) in cats after vaccinated Yersinia pestis,to discuss the significance of detection of F1 antibody and IgM in surveillance of animal plague.Methods The 3 cats were vaccinated Yersinia pestis on their backs with muhipoint hypodermic injection and blood samples were collected via femoral vein on 3rd to 521st days after injection.F1 antibody was detected by sandwich Enzyme-linked immunosorbent assay (ELISA),and IgM of F1 antibody was determined with a capture antibody.Results After vaccinated Yersinia pestis for 3rd days,F1 antibody and IgM appeared slightly positive,with the titer of 1 ∶ 22.00 and 1 ∶ 20.33,respectively.The titer of F1 antibody increased to 1 ∶ 25.33 on the 4th day,and reached the peak of 1 ∶ 29.67 on the 97th day,kept 1 ∶ 25.33 on the 521st day.While the titer of IgM reached peak of 1 ∶ 212.00 on the 7th to 10th days,and decreased rapidly to below the positive standard on the 30th day.Conclusions Detection of F1 antibody in cats with plague by sandwich ELISA can trace plague prevalence in animals back to a long time,which may be applied for investigation of plague foci.A single serum sample can determine early animal plague with a capture antibody to detect IgM of F1 antibody in cat with the plague,and a single serum sample tested with the two methods at the same time for detection of F1 antibody and IgM can precisely verify the infection time of plague in animals for 3 to 7 days.

Objective To study any functional changes in the trigeminal nociceptive system in cases of migraine with aura (MWA) using painful heat-evoked potentials (CHEPs),and to explore the value of CHEP in evaluating the trigeminal small nerve fibers of patients with MWA.Methods Sixty patients with MWA were recruited as the MWA group,and 60 healthy persons were selected as a normal control group.Thermal stimulation at 51 ℃ was applied to the skin above the patients' right and left eyebrows.The N wave latencies and N-P amplitudes of the CHEPs were recorded at the vertex (Cz) of the head.The intensity of the stimulus was graded using a visual analogue scale (VAS).Results In the control group the simulation produced no significant differences in the N550 or P750 latencies or in the N-P amplitudes.In the MWA group no significant differences were observed when the headache side was stimulated,but the N550 and P750 latencies were both significantly shorter than those of the control group and the N-P amplitude was significantly greater than that of the control group.The average VAS score on both sides in the patients with migraine was significantly higher than those of the control group.However,there was no significant difference in average VAS scores between the headache and non-headache sides of the patients with migraine.Conclusions CHEP is a reliable method for detecting any pathological changes in the trigeminal small nerve sensory pathway.Increased cutaneous allodynia in acute migraine attacks is detectable using CHEPs.