The paper reports one case of primary cutaneous amyloidosis (PCA) treated by tapping with plum-blossom needle combined with sulfur ointment and local irradiation. PCA in this case was manifested as generalized erythema, papules, plaques, lichenification, and severe pruritus. In treatment, tapping with plum-blossom needle was delivered at typical lesions to induce local congestion, redness, and minimal bleeding. After cleaned with sterile gauze for 10 s, 25% sulfur ointment was evenly applied, followed by local irradiation with a TDP lamp for 15 min. This session was repeated twice a week. In 1 month of treatment, the lesions turned flat and the skin was soft as the normal, with pigmentation and mild pruritus left. In 3 months of follow-up, no papules recurred, and mild pruritus presented occasionally.
Humans ; Ointments/administration & dosage* ; Sulfur/administration & dosage* ; Skin Diseases, Genetic/radiotherapy* ; Middle Aged ; Amyloidosis, Familial/radiotherapy* ; Male ; Acupuncture Therapy/instrumentation* ; Female ; Combined Modality Therapy

Early correction of childhood malocclusion is timely managing morphological, structural, and functional abnormalities at different dentomaxillofacial developmental stages. The selection of appropriate imaging examination and comprehensive radiological diagnosis and analysis play an important role in early correction of childhood malocclusion. This expert consensus is a collaborative effort by multidisciplinary experts in dentistry across the nation based on the current clinical evidence, aiming to provide general guidance on appropriate imaging examination selection, comprehensive and accurate imaging assessment for early orthodontic treatment patients.
Humans ; Malocclusion/diagnostic imaging* ; Child ; Consensus

Increasing evidence showed that histone deacetylase 6 (HDAC6) dysfunction is directly associated with the onset and progression of various diseases, especially cancers, making the development of HDAC6-targeted anti-tumor agents a research hotspot. In this study, artificial intelligence (AI) technology and molecular simulation strategies were fully integrated to construct an efficient and precise drug screening pipeline, which combined Voting strategy based on compound-protein interaction (CPI) prediction models, cascade molecular docking, and molecular dynamic (MD) simulations. The biological potential of the screened compounds was further evaluated through enzymatic and cellular activity assays. Among the identified compounds, Cmpd.18 exhibited more potent HDAC6 enzyme inhibitory activity (IC₅₀ = 5.41 nM) than that of tubastatin A (TubA) (IC₅₀ = 15.11 nM), along with a favorable subtype selectivity profile (selectivity index ≈ 117.23 for HDAC1), which was further verified by the Western blot analysis. Additionally, Cmpd.18 induced G2/M phase arrest and promoted apoptosis in HCT-116 cells, exerting desirable antiproliferative activity (IC₅₀ = 2.59 μM). Furthermore, based on long-term MD simulation trajectory, the key residues facilitating Cmpd.18's binding were identified by decomposition free energy analysis, thereby elucidating its binding mechanism. Moreover, the representative conformation analysis also indicated that Cmpd.18 could stably bind to the active pocket in an effective conformation, thus demonstrating the potential for in-depth research of the 2-(2-phenoxyethyl)pyridazin-3(2H)-one scaffold.

Traditionally, platelets, which are anucleate cell fragments derived from blood cells, have been primarily associated with their pivotal functions in hemostasis and thrombosis. However, recent research has elucidated their significant role in immune regulation, highlighting their expression of various immune receptors, involvement in numerous immune-related signaling pathways, and activation of diverse effector functions. This paper elaborates on the fundamental biological characteristics and immune functions of platelets, the involvement of activated platelets in immune regulation, and their prospective applications in clinical therapy. Furthermore, the paper discusses future directions in platelet immune research, as well as the prospects and developmental trends in immunotherapy, aiming to furnish a thorough reference for the investigation and clinical utilization of platelets within the domain of immune regulation.

Increasing evidence showed that histone deacetylase 6(HDAC6)dysfunction is directly associated with the onset and progression of various diseases,especially cancers,making the development of HDAC6-targeted anti-tumor agents a research hotspot.In this study,artificial intelligence(AI)technology and molecular simulation strategies were fully integrated to construct an efficient and precise drug screening pipeline,which combined Voting strategy based on compound-protein interaction(CPI)prediction models,cascade molecular docking,and molecular dynamic(MD)simulations.The biological potential of the screened compounds was further evaluated through enzymatic and cellular activity assays.Among the identified compounds,Cmpd.18 exhibited more potent HDAC6 enzyme inhibitory activity(IC50=5.41 nM)than that of tubastatin A(TubA)(IC50=15.11 nM),along with a favorable subtype selectivity profile(selectivity index ≈ 117.23 for HDAC1),which was further verified by the Western blot analysis.Additionally,Cmpd.18 induced G2/M phase arrest and promoted apoptosis in HCT-116 cells,exerting desirable antiproliferative activity(IC50=2.59 μM).Furthermore,based on long-term MD simulation trajectory,the key residues facilitating Cmpd.18's binding were identified by decomposition free energy analysis,thereby elucidating its binding mechanism.Moreover,the representative conformation analysis also indicated that Cmpd.18 could stably bind to the active pocket in an effective conformation,thus demonstrating the potential for in-depth research of the 2-(2-phenoxyethyl)pyridazin-3(2H)-one scaffold.

Objective:To observe Leber's hereditary optic neuropathy (LHON) microperimetry features, discuss its significance in diagnosis and treatment of LHON assessment.Methods:A retrospective clinical study. A total of 13 LHON patients (25 eyes) diagnosed in Department of Ophthalmology of the First Affiliated Hospital of Army Medical University from May 2015 to May 2020 (disease group) were included in the study, including 9 males (18 eyes) and 4 females (7 eyes), and beginning with the age of 15.0 (10.0, 57.0). Ten healthy volunteers (19 eyes) were selected as the normal group, including 7 males (13 eyes) and 3 females (6 eyes), aged 22.0 (6.0, 46.0) years at the first diagnosis. According to the course is divided into: asymptomatic group (carriers), subacute (<6 months), the dynamic group (6-12 months), chronic group (>12 months). There were 7, 6, 5 and 7 eyes, respectively. All eyes underwent best corrected visual acuity (BCVA) and microperimetry. BCVA test was performed using the international standard visual acuity chart, which was statistically converted to the logarithm of the minimum Angle of resolution (logMAR) visual acuity. MP-3 microperimetry was used to perform microperimetry, and the mean sensitivity (MS) values of five regions were recorded: center, superior, temporal, inferior, and nasal. Mann-Whitney U test was used for comparison between two groups, and Kruskal-Wallis H test was used for comparison between multiple groups. Results:Compared with the normal group, MS in the center, superior, temporal, inferior and nasal of the diseased group decreased, and the differences were statistically significant ( Z=-5.629, -4.906, -5.630, -5.631, -5.227; P<0.05). There were significant differences in different regions of MS between different course groups ( H=12.296, 11.583, 10.110, 12.994, 8.663; P<0.05). There were significant differences in logMAR BCVA and central MS between asymptomatic group and subacute group ( P=0.040, 0.007). There were significant differences in temporal, inferior and superior MS between subacute group and dynamic group ( P=0.026, 0.017, 0.018). Dynamic and chronic group, MS above the difference was statistically significant ( P=0.031). Idebenone treatment significantly improved visual field defects in 4 of 23 eyes. Conclusions:In the early stage of LHON, the central visual field defect gradually progresses to the temporal, inferior and superior areas, and the temporal and inferior areas are more severe. Visual field defects reached a stable level at 6-12 months. MP-3 can assist in early diagnosis of LHON, and provide reliable basis for efficacy evaluation.

Objective: To investigate the metabolic trajectory of kidney aging and the effects of Polygonatum sibiricum polysaccharides (PSP) against kidney aging in D-galactose (D-gal)-induced aging mice, based on ultra-performance liquid chromatography/Q-Exactive Orbitrap mass spectrometry (UPLC-Q-Exactive MS/MS). Methods: A total of 36 C57 BL/6J mice were randomly allocated to six groups: control (CON), model (MOD), PSP low-dose (PSP-L), PSP medium-dose (PSP-M), PSP high-dose (PSP-H), and positive drug ascorbic acid (VC) groups. To create models of aging mice, D-gal was intraperitoneally administered to all other groups of mice except the CON group. After modeling, the appropriate Chinese medicine [PSP-L: 150 mg/(kg·d), PSP-M: 300 mg/(kg·d), PSP-H: 600 mg/(kg·d)] or positive drug [ascorbic acid, 300 mg/(kg·d)] was administered for intervention. Key markers of renal function in urine and serum of mice in each group, such as creatinine (Crea), urea nitrogen (BUN), and uric acid (UA) levels, as well as key indicators of oxidative stress in serum and kidney, including superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), and glutathione peroxidase (GSH-Px) were determined to validate the successful establishment of kidney aging models and to estimate the effects of PSP. Hematoxylin and eosin (HE), periodic acid Schiff (PAS), and β-galactosidase staining were used to assess the renal pathological changes. The metabolic profiles of serum, kidney, and urine samples from CON, MOD, and PSP-H groups were analyzed by UPLC-Q-Exactive MS/MS, and pattern recognition methods were used to outline the metabolic trajectory of kidney aging and to identify the characteristic metabolites. Results: Age-related alterations in renal histopathology and impaired renal function in mice were also associated with oxidative stress indicators. Following the injection of PSP [PSP-H: 600 mg/(kg·d)], the pathological indices associated with aging were adjusted to normal levels, renal function and oxidative stress were improved in aging mice, and renal pathological damage was markedly improved. Meanwhile, the potential biomarkers were identified by UPLC-Q-Exactive MS/MS analysis and were further analyzed to form related metabolic pathways, with P < 0.05 as a threshold. The results showed that purine, sphingolipid, glycerophospholipid, tryptophan, and riboflavin metabolisms were the main metabolic pathways associated with aging. After administration of PSP, these pathological indices returned to normal levels, and biomarkers related to the aging process, such as adenosine monophosphate (AMP), tryptophan, and 5-hydroxytryptophan, also demonstrated, to some degree, reverse regulation (promoting synthesis). Conclusion Metabolomics methods based on UPLC-Q-Exactive MS/MS and multivariate statistical analysis can be adopted to establish metabolic profiles in aging mice. PSP has been shown to protect against kidney aging by interfering with the purine, sphingolipid, glycerophospholipid, tryptophan, and riboflavin metabolisms in the kidney.

In recent years， neurotoxicity caused by traditional Chinese medicine （TCM） has frequently occurred and has become one of the important factors restricting the development and application of TCM. TCM contains active components and its dosage-effect relationship is the key to determine its pharmacological activity and toxic effects. Among them， the endogenous toxic components include alkaloids， glycosides， diterpenoids， animal and plant toxic proteins and heavy metals， and so on； exogenous toxic components mainly refer to some harmful elements and pesticide residues during the cultivation， processing， transportation and storage of medicinal materials that are not synthesized by themselves. Effect on the processes such as oxidative stress， inflammation， ion exchange， and energy metabolism may be important mechanisms of TCM-induced neurotoxicity. Neural cells， myelin cells， axons and neurotransmitter systems are common targets of TCM-induced neurotoxicity. In the future， we can use modern research methods and big data mining means to establish a safety evaluation mode of “toxic symptoms-poisoning dose-toxic original agent-detoxification scheme” with the basic component group of toxic substances as the core， so as to provide support for development and clinical intervention of neurotoxic traditional Chinese medicine.

Objective:To compare short-term clinical outcomes and patient satisfaction between robotic-assisted total hip arthroplasty (THA) and conventional THA.Methods:Patient data of unilateral primary THA with the same prosthesis by the same operator due to osteoarthritis, osteonecrosis of the femoral head, and other diseases in Peking University Third Hospital from September 2019 to February 2022 was retrospectively analyzed. Patients were divided into robot-assisted THA group and conventional THA group according to surgical methods. The preoperative general data, operation time, intraoperative complications and other intraoperative data were collected. Anteroposterior X-ray of pelvis and cross-table X-ray of hip were taken. Main outcome measures consisted of total blood loss, blood transfusion rate, hospitalization stay, postoperative complications, and the inclination and anteversion angle of the acetabular cup, while the dislocation rate outside the Lewinnek and Callanan safe zone was also analyzed. Other outcomes measures included visual analogue scale, Harris score, quality of life score (QOL) and satisfaction score.Results:There was no significant difference in gender, age, height, weight, body mass index (BMI), operation side, preoperative blood volume and Harris score between the two groups ( P>0.05); Loosening of positioning screws occurred in 2 patients due to osteoporosis in robot-assisted THA group, so conventional THA was performed. Therefore, 84 cases in robot-assisted THA group and 87 cases in conventional THA group were enrolled in this study at last. There was no significant difference in follow-up time between conventional THA group and robot-assisted THA group (19.7±6.8 months vs. 18.6±5.4 months, t=1.16, P=0.249); The operation time of robot-assisted THA group was longer than that of conventional THA group (106.99±31.91 min vs. 73.79±29.48 min, t=7.07, P<0.001), but there was no significant difference in hospitalization stay between conventional THA group and robot-assisted THA group (6.40±2.40 d vs. 6.49±1.95 d, t=0.26, P=0.796). There was also no significant difference in total blood loss and blood transfusion rate between the two groups ( P>0.05). There was no significant difference in inclination angle (38.79°±6.93° vs. 39.41°±3.01°, t=0.58, P=0.449) and anteversion angle (14.81°±6.49° vs. 13.33°±4.32°, t=3.06, P=0.082) between conventional THA group and robot-assisted THA group, while the percentage in Lewinnek safe zone (96.4% vs. 73.6%, χ 2=15.60, P<0.001) and Callanan safe zone (92.9% vs. 65.5%, χ 2=17.61, P<0.001) was significantly higher in conventional THA than that of robot-assisted THA. There were no significant differences in postoperative VAS, Harris score and QOL score between the two groups ( P>0.05), but the excellent and good rate of Harris score of conventional THA group was lower than that of robot-assisted THA group (83.91% vs. 95.24%, χ 2=5.83, P=0.016); The overall satisfaction of patients in robot-assisted THA group was better than that in conventional THA group ( Z=-3.47, P=0.001), and 95.2% (80/84) of patients in robot-assisted THA group were very satisfied, which was higher than that in conventional THA group (75.86%, 66/87). The satisfaction of patients in robot-assisted THA group on pain relief ( Z=-2.44, P=0.015) and improvement of leisure activity ( Z=-2.12, P=0.034) was better than that in conventional THA group, but there was no significant difference in the satisfaction of ability of doing house work between the two groups ( Z=-0.49, P=0.626). Conclusion:Compared with conventional THA, robot-assisted THA has longer operation time but better short-term clinical outcomes and higher patient satisfaction after surgery.

OBJECTIVE To analyze the adverse drug reaction （ADR）signals of ado-trastuzumab emtansine and brentuximab vedotin，so as to provide reference for clinical medication safety. METHODS Using the FDA adverse drug event reporting system （FAERS）database and OpenVigil 2.1 data platform ，the ADR of the two drugs were collected from being approved by FDA to the Sep. 30th，2021. The ADR signals were detected by frequency method and sorted according to the occurrence frequency and signal strength respectively. RESULTS & CONCLUSIONS A total of 2 319 and 3 178 ADR reports related to ado-trastuzumab emtansine and brentuximab vedotin were collected ，215 and 329 ADR signals were detected respectively. According to the occurrence frequency，the most frequent ADR s of the two drugs were thrombocytopenia （109 cases）and febrile neutropenia （198 cases）， separately，which were consistent with the drug instructions. According to the signal strength ，the spider nevus of ado-trastuzumab emtansine（report odds ratio of 451.46）and the noninfectious endocarditis of brentuximab vedotin （report odds ratio of 304.35） ranked first ，both of which were not reported in the drug instructions. It is suggested that attention should be paid not only to the most common ADR s of blood and lymphatic system caused by both drugs ，but also to the ADRs not reported in the drug instructions such as spider nevus of ado-trastuzumab emtansine and noninfective endocarditis of brentuximab vedotin.