Osteoporosis is a systemic disease characterized by imbalanced bone metabolism and destruction of bone microstructure, with reduced bone density, decreased bone quality, and significantly increased risk of fracture as its hallmarks. At present, osteoporosis is primarily diagnosed through bone density measurement. However, this method has low sensitivity and is challenging for the early diagnosis of osteoporosis. We analyzed osteoporosis-related metabolomics studies based on blood, urine, and fecal samples, as well as the application of multi-omics approaches in elucidating its pathogenesis. Evidence suggests that metabolomics can detect metabolic alterations prior to measurable changes in bone mineral density, offering promising avenues for early osteoporosis detection. Blood-based metabolomics studies indicate that amino acid metabolism dysregulation is a key feature of osteoporosis. Specifically, glycine, glutamine, lysine, and hydroxyproline exhibit negative correlations with bone mineral density, whereas tryptophan, branched-chain amino acids, and arginine show positive associations. Lipid metabolism disturbances are characterized by increased levels of phosphatidylcholine, phosphatidylethanolamine, and triglycerides, alongside decreased levels of sphingomyelin and carnitine. Fecal metabolomics studies highlight the significance of the "gut-bone axis" in osteoporosis, where gut microbiota dysbiosis influences bone metabolism through modulation of arginine and proline metabolism and aminoacyl-tRNA biosynthesis pathways. Multi-omics approaches integrate metabolomics, genomics, proteomics, and other omics data to provide a more comprehensive understanding of osteoporosis' molecular mechanisms, enabling the identification of key biomarkers and therapeutic targets. Metabolomics holds considerable potential for early diagnosis, while multi-omics integration offers novel insights into the complex pathophysiological mechanisms underlying osteoporosis. As detection technologies and analytical methods continue to advance, omics-based strategies are expected to play a pivotal role in the development of precision medicine for osteoporosis.

Objective:To explore the clinical manifestations of IgG4-related diseases（IgG4-RD） complicated with moderately differentiated adenosquamous carcinoma of the parotid gland, the diagnostic criteria for IgG4-related diseases and parotid malignant tumors, treatment regimens, and the application of fine-needle aspiration in disease diagnosis, so as to reduce clinical misdiagnosis and missed diagnosis. Methods:A retrospective analysis was conducted on the case data of a patient with IgG4-related diseases（IgG4-RD） complicated with moderately differentiated adenosquamous carcinoma of the parotid gland admitted to our department in March 2024. The clinical characteristics, imaging findings, preoperative puncture results, and postoperative pathological features were analyzed, and relevant literatures on both diseases were reviewed and summarized. Results:The elderly male patient was admitted due to "a mass in the parotid area in front of the right ear for more than 3 months". Through clinical examination, imaging examination, laboratory examination, and preoperative needle biopsy, the diagnosis of "right parotid moderately differentiated adenosquamous carcinoma complicated with IgG4-related disease" was considered. It was also considered that IgG4-related disease did not involve other organs before surgery, so no systemic hormone therapy was given before or after surgery. After surgery combined with postoperative radiotherapy, follow-up showed that neither the parotid tumor nor IgG4-related disease recurred. Conclusion:"IgG4-related disease complicated with moderately differentiated adenosquamous carcinoma"is a rare clinical disease. Both lack typical clinical manifestations and specific imaging features, and the diagnosis is mostly unclear before surgery. Pathological examination is of great significance in the diagnosis of the disease, while fine-needle aspiration has limited value in the diagnosis, which should attract the attention of clinicians. In addition, for patients with both diseases, individualized treatment plans should be formulated.
Humans ; Parotid Neoplasms/pathology* ; Male ; Carcinoma, Adenosquamous/pathology* ; Immunoglobulin G4-Related Disease/complications* ; Parotid Gland/pathology* ; Retrospective Studies ; Aged ; Biopsy, Fine-Needle ; Immunoglobulin G

Osteoporosis is a systemic disease characterized by imbalanced bone metabolism and destruction of bone microstructure, with reduced bone density, decreased bone quality, and significantly increased risk of fracture as its hallmarks. At present, osteoporosis is primarily diagnosed through bone density measurement. However, this method has low sensitivity and is challenging for the early diagnosis of osteoporosis. We analyzed osteoporosis-related metabolomics studies based on blood, urine, and fecal samples, as well as the application of multi-omics approaches in elucidating its pathogenesis. Evidence suggests that metabolomics can detect metabolic alterations prior to measurable changes in bone mineral density, offering promising avenues for early osteoporosis detection. Blood-based metabolomics studies indicate that amino acid metabolism dysregulation is a key feature of osteoporosis. Specifically, glycine, glutamine, lysine, and hydroxyproline exhibit negative correlations with bone mineral density, whereas tryptophan, branched-chain amino acids, and arginine show positive associations. Lipid metabolism disturbances are characterized by increased levels of phosphatidylcholine, phosphatidylethanolamine, and triglycerides, alongside decreased levels of sphingomyelin and carnitine. Fecal metabolomics studies highlight the significance of the "gut-bone axis" in osteoporosis, where gut microbiota dysbiosis influences bone metabolism through modulation of arginine and proline metabolism and aminoacyl-tRNA biosynthesis pathways. Multi-omics approaches integrate metabolomics, genomics, proteomics, and other omics data to provide a more comprehensive understanding of osteoporosis' molecular mechanisms, enabling the identification of key biomarkers and therapeutic targets. Metabolomics holds considerable potential for early diagnosis, while multi-omics integration offers novel insights into the complex pathophysiological mechanisms underlying osteoporosis. As detection technologies and analytical methods continue to advance, omics-based strategies are expected to play a pivotal role in the development of precision medicine for osteoporosis.

OBJECTIVE: To evaluate the analgesic efficacy of ultrasound-guided high fascia iliaca compartment block (HFICB) in managing tourniquet-related pain following total knee arthroplasty (TKA). METHODS: A prospective randomized controlled trial was conducted involving 84 patients with severe knee osteoarthritis or rheumatoid arthritis who underwent unilateral TKA between March 2024 and December 2024. Patients were randomly assigned to two groups ( n=42) using a random number table. In the trial group, ultrasound-guided HFICB was performed preoperatively, with 0.2% ropivacaine injected into the fascia iliaca compartment. No intervention was administered in the control group. Baseline characteristics, including gender, age, surgical side, body mass index, and preoperative visual analogue scale (VAS) scores at rest and during movement, showed no significant difference between the two groups ( P>0.05). In both groups, a tourniquet was applied after osteotomy and before pulsed lavage, and removed after the closure of the first layer of the joint capsule. Postoperative assessments were conducted at 6, 12, 24, and 48 hours, including VAS scores at the tourniquet site (at rest and during movement), Bromage motor block scores, Ramsay sedation scores, and Bruggrmann comfort scale (BCS) scores to evaluate patient comfort. Additionally, the average tramadol consumption and incidence of nausea and vomiting within 48 hours postoperatively were recorded and compared. RESULTS: In the trial group and control group, VAS scores during movement at the tourniquet site significantly improved at all postoperative time points compared to preoperative levels ( P<0.05). VAS scores at rest increased transiently at 6 hours after operation in both groups, and then gradually decreased to the preoperative level. Except that there was no significant difference at 48 hours after operation in the trial group ( P>0.05), there were significant differences at other time points of two groups compared to preoperative score ( P<0.05). Except for VAS score at rest at 6 hours, VAS score during movement at 48 hours, and BCS comfort score at 48 hours ( P>0.05), the trial group showed significantly better outcomes than the control group in terms of VAS score at rest, VAS score during movement, Ramsay sedation scores, and BCS comfort scores at all other time points ( P<0.05). No significant difference was found in Bromage motor block scores between the groups ( P>0.05). Tramadol was used in 3 patients in the trial group and 7 patients in the control group within 48 hours after operation, the dosage was (133.30±14.19) mg and (172.40±22.29) mg, showing significant difference ( P<0.05). Nausea and vomiting occurred in 4 patients (9.5%) in the trial group and 3 patients (7.1%) in the control group, with no significant difference in incidence between groups ( P>0.05). CONCLUSION Ultrasound-guided HFICB provides effective analgesia for tourniquet-related pain following TKA, facilitates early postoperative functional recovery of the knee joint, and may serve as a valuable clinical option for postoperative pain management in TKA patients.
Humans ; Arthroplasty, Replacement, Knee/adverse effects* ; Nerve Block/methods* ; Male ; Female ; Pain, Postoperative/etiology* ; Tourniquets/adverse effects* ; Prospective Studies ; Middle Aged ; Ropivacaine/administration & dosage* ; Aged ; Ultrasonography, Interventional ; Anesthetics, Local/administration & dosage* ; Pain Measurement ; Fascia ; Osteoarthritis, Knee/surgery* ; Treatment Outcome ; Arthritis, Rheumatoid/surgery*

Eight previously undescribed lanostane triterpenoids, including five nortriterpenoids with 26 carbons, ganothenoids A-E (1-5), and three lanostanoids, ganothenoids F-H (6-8), along with 24 known ones (9-32), were isolated from the fruiting bodies of Ganodrma theaecolum. The structures of the novel compounds were elucidated using comprehensive spectroscopic methods, including electronic circular dichroism (ECD) and nuclear magnetic resonance (NMR) calculations. Compounds 1-32 were assessed for their neuroprotective effects against H₂O₂-induced damage in human neuroblastoma SH-SY5Y cells, as well as their inhibitory activities against protein tyrosine phosphatase 1B (PTP1B) and α-glucosidase. Compound 4 demonstrated the most potent neuroprotective activity against H₂O₂-induced oxidative stress by suppressing G₀/G₁ phase cell cycle arrest, reducing reactive oxygen species (ROS) levels, and inhibiting cell apoptosis through modulation of B-cell lymphoma 2 protein (Bcl-2) and Bcl-2 associated X-protein (Bax) protein expression. Compounds 26, 12, and 28 exhibited PTP1B inhibitory activities with IC₅₀ values ranging from 13.92 to 56.94 μmol·L^-1, while compound 12 alone displayed significant inhibitory effects on α-glucosidase with an IC₅₀ value of 43.56 μmol·L^-1. Additionally, enzyme kinetic analyses and molecular docking simulations were conducted for compounds 26 and 12 with PTP1B and α-glucosidase, respectively.
Humans ; Fruiting Bodies, Fungal/chemistry* ; Triterpenes/isolation & purification* ; Neuroprotective Agents/isolation & purification* ; Protein Tyrosine Phosphatase, Non-Receptor Type 1/metabolism* ; Ganoderma/chemistry* ; Apoptosis/drug effects* ; Hypoglycemic Agents/isolation & purification* ; Molecular Structure ; alpha-Glucosidases/metabolism* ; Cell Line, Tumor ; Reactive Oxygen Species/metabolism* ; Oxidative Stress/drug effects* ; Hydrogen Peroxide/toxicity* ; Molecular Docking Simulation

Objective To explore the value of thyroid nodule fine needle aspiration cytology(FNAC)combined with B-Raf proto-oncogene,serine/threonine kinase(BRAF)gene detection in the differential diagnosis of benign and malignant thyroid tumors.Methods According to the results of pathological examination,198 patients with thyroid nodules were divided into the benign lesion group(n=107)and the malignant lesion group(n=91).All patients underwent ultrasound-guided FNAC,and expression of BRAF gene was detected by real-time fluorescence quantitative polymerase chain reaction.The value of FNAC,BRAF gene detection and combined detection in the differential diagnosis of benign and malignant thyroid tumors was analyzed by Kappa consistency test and receiver operating characteristic(ROC)curves.Results The nodules were mostly under envelope in the malignant lesion group,while in the benign lesion group,which were mostly located within glands(P＜0.05).FNAC results showed that 62 cases with type II Bethesda,26 cases with type III Bethesda,29 cases with type IV Bethesda,14 cases with type V Bethesda and 67 cases with type VI Bethesda.There were significant differences in diagnostic positive rates between FNAC,BRAF gene detection,combined detection and pathological examination(P＜0.05).The area under ROC curve(AUC)of FNAC combined with BRAF gene detection for differentiating benign and malignant thyroid tumors was 0.871(95%CI:0.816-0.914),sensitivity was 90.11%,specificity was 84.11%and Kappa value was 0.737.The AUC of FNAC diagnosis was 0.833(95%CI:0.774-0.882),sensitivity was 76.92%,specificity was 89.72%and Kappa value was 0.672.The AUC of BRAF gene detection was 0.829(95%CI:0.770-0.879),sensitivity was 78.02%,specificity was 87.85%and Kappa value was 0.663.Conclusion FNAC combined with BRAF gene detection can improve differential diagnosis efficiency for benign and malignant thyroid lesions,especially enhancing the diagnostic sensitivity.

Objective To explore the value of thyroid nodule fine needle aspiration cytology(FNAC)combined with B-Raf proto-oncogene,serine/threonine kinase(BRAF)gene detection in the differential diagnosis of benign and malignant thyroid tumors.Methods According to the results of pathological examination,198 patients with thyroid nodules were divided into the benign lesion group(n=107)and the malignant lesion group(n=91).All patients underwent ultrasound-guided FNAC,and expression of BRAF gene was detected by real-time fluorescence quantitative polymerase chain reaction.The value of FNAC,BRAF gene detection and combined detection in the differential diagnosis of benign and malignant thyroid tumors was analyzed by Kappa consistency test and receiver operating characteristic(ROC)curves.Results The nodules were mostly under envelope in the malignant lesion group,while in the benign lesion group,which were mostly located within glands(P＜0.05).FNAC results showed that 62 cases with type II Bethesda,26 cases with type III Bethesda,29 cases with type IV Bethesda,14 cases with type V Bethesda and 67 cases with type VI Bethesda.There were significant differences in diagnostic positive rates between FNAC,BRAF gene detection,combined detection and pathological examination(P＜0.05).The area under ROC curve(AUC)of FNAC combined with BRAF gene detection for differentiating benign and malignant thyroid tumors was 0.871(95%CI:0.816-0.914),sensitivity was 90.11%,specificity was 84.11%and Kappa value was 0.737.The AUC of FNAC diagnosis was 0.833(95%CI:0.774-0.882),sensitivity was 76.92%,specificity was 89.72%and Kappa value was 0.672.The AUC of BRAF gene detection was 0.829(95%CI:0.770-0.879),sensitivity was 78.02%,specificity was 87.85%and Kappa value was 0.663.Conclusion FNAC combined with BRAF gene detection can improve differential diagnosis efficiency for benign and malignant thyroid lesions,especially enhancing the diagnostic sensitivity.

Objective To investigate the efficacy and complications of one-step and two-step ultrasound-guided percutaneous transhepatic hepatic duct drainage(PTHD)in the treatment of advanced low-level biliary obstruction.Methods A total of 112 patients with advanced low-level biliary obstruction who underwent palliative surgery for reducing jaundice in the hospital from January 2019 to July 2023 were selected,and divided into the one-step group and the two-step group according to the principle of complete randomization(grouped by random number table method).The one-step group(n=56)underwent one-step PTHD,while the two-step group(n=56)underwent two-step PTHD.Surgery related indicators,serum total bilirubin(TBIL),alkaline phosphatase(ALP),alanine transaminase(ALT),the incidence of postoperative complications,and satisfaction were compared between the two groups.Results There was no difference in intraoperative blood loss[(2.96±0.50)ml vs.(3.02±0.53)ml],drainage volume in 48 hours after surgery[(555.84±90.51)ml vs.(560.52±104.23)ml]between the two groups(P＞0.05).Operation time and postoperative VAS score of the one-step group were significantly shorter/lower than those of the two-step group[(32.50±4.26)min vs.(36.43±3.58)min,(3.72±1.57)points vs.(4.53±1.34)points],and the success rate of puncture was significantly higher than that in the two-step group(96.43％vs.76.69％),with statistically significant differences(P＜0.05).After treatment,the levels of TBIL,ALP and ALT in the two groups were significantly reduced(P＜0.05),but there was no statistically significant difference between the groups(P＞0.05).There was no statistically significant difference in the incidence of complications between the two groups(3.57％vs.7.14％,Fisher's exact probability=0.679).The satisfaction rate in the one-step group was significantly higher than that in the two-step group(94.64％vs.75.00％),with a statistically significant difference(P＜0.05).ConclusionThe operation time of one-step PTHD is shorter and the success rate of puncture is higher.In addition,patients undergoing one-step PTHD have milder pain,and are more satisfied.

Background::The goal of the assisted reproductive treatment is to transfer one euploid blastocyst and to help infertile women giving birth one healthy neonate. Some algorithms have been used to assess the ploidy status of embryos derived from couples with normal chromosome, who subjected to preimplantation genetic testing for aneuploidy (PGT-A) treatment. However, it is currently unknown whether artificial intelligence model can be used to assess the euploidy status of blastocyst derived from populations with chromosomal rearrangement.Methods::From February 2020 to May 2021, we collected the whole raw time-lapse videos at multiple focal planes from in vitro cultured embryos, the clinical information of couples, and the comprehensive chromosome screening results of those blastocysts that had received PGT treatment. Initially, we developed a novel deep learning model called the Attentive Multi-Focus Selection Network (AMSNet) to analyze time-lapse videos in real time and predict blastocyst formation. Building upon AMSNet, we integrated additional clinically predictive variables and created a second deep learning model, the Attentive Multi-Focus Video and Clinical Information Fusion Network (AMCFNet), to assess the euploidy status of embryos. The efficacy of the AMCFNet was further tested in embryos with parental chromosomal rearrangements. The receiver operating characteristic curve (ROC) was used to evaluate the superiority of the model. Results::A total of 4112 embryos with complete time-lapse videos were enrolled for the blastocyst formation prediction task, and 1422 qualified blastocysts received PGT-A ( n = 589) or PGT for chromosomal structural rearrangement (PGT-SR, n = 833) were enrolled for the euploidy assessment task in this study. The AMSNet model using seven focal raw time-lapse videos has the best real-time accuracy. The real-time accuracy for AMSNet to predict blastocyst formation reached above 70% on the day 2 of embryo culture, and then increased to 80% on the day 4 of embryo culture. Combing with 4 clinical features of couples, the AUC of AMCFNet with 7 focal points increased to 0.729 in blastocysts derived from couples with chromosomal rearrangement. Conclusion::Integrating seven focal raw time-lapse images of embryos and parental clinical information, AMCFNet model have the capability of assessing euploidy status in blastocysts derived from couples with chromosomal rearrangement.

N6-methyladenosine(m6A)is produced by methylation of the 6th nitrogen atom of ade-nine.The m6A methylation modification is the most common internal modification of RNA,and the modifica-tion process mainly relies on m6A-related enzymes,including methyltransferases,demethylases and binding proteins.The core structure of the methyltransferase complex(MTC)is methyltransferase-like 3(METTL3).The pathogenesis of osteoarthritis(OA)is intricate and complex,and various factors interact with each other.This paper summarizes the mechanism of action of m6A and related enzymes,and elaborates the pathogenesis of os-teoarthritis from the aspects of chondrocytes,proteases,cytokines and signaling pathways,emphatically intro-duces the regulatory role of METTL3 on OA in m6A methylated modification.The aim is to provide new per-spectives on the pathogenesis of osteoarthritis in order to provide new ideas and approaches for the treatment of osteoarthritis.