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1.
World J Gastrointest Surg ; 16(7): 2119-2126, 2024 Jul 27.
Article in English | MEDLINE | ID: mdl-39087108

ABSTRACT

BACKGROUND: Surgical resection is the cornerstone treatment for colorectal cancer. Rapid rehabilitation care predicated on evidence-based medical theory aims to improve postoperative nursing care, subsequently reducing the physical and mental traumatic stress response and helping patients who undergo surgery recover rapidly. AIM: To assess the effect of rapid rehabilitation care on clinical outcomes, including overall postoperative complications, anastomotic leaks, wound infections, and intestinal obstruction in patients with colorectal cancer. METHODS: We searched the PubMed, Web of Science, Embase, Elsevier Science Direct, and Springer Link databases from January 1, 2010, to January 1, 2024, to screen eligible studies on rapid rehabilitation care among patients who underwent colorectal cancer surgery. Patients were screened based on the inclusion and exclusion criteria. RevMan 5.4 software was used for statistical analysis of the data. RESULTS: Twelve studies were enrolled, which included 2420 patients. The results showed that rapid rehabilitation care decreased the incidence of overall postoperative complications (OR: 0.44, 95%CI: 0.26-0.74, P = 0.002), anastomotic leaks (OR: 0.68, 95%CI: 0.41-1.12, P = 0.13), wound infections (OR: 0.45, 95%CI: 0.29-0.72, P = 0.0007), and intestinal obstruction (OR: 0.54, 95%CI: 0.34-0.86, P = 0.01) compared to conventional care. Further trials and studies are needed to confirm these results. CONCLUSION: Rapid rehabilitation care decreased the occurrence of postoperative complications, anastomotic leaks, wound infections, and intestinal obstruction compared to conventional care in patients who underwent colorectal surgery. Therefore, promoting the application of rapid rehabilitation care in clinical practice cannot be overemphasized.

2.
PLoS One ; 19(7): e0306863, 2024.
Article in English | MEDLINE | ID: mdl-38980838

ABSTRACT

BACKGROUND: Although clear cell sarcoma of kidney (CCSK) is rare, it is the second most common renal tumor in children after Wilms' tumor. NWTS and SIOP are two major groups which had made tremendous efforts on renal tumors, but the strategies are different, for NWTS follows the upfront surgery principle providing definite pathology and the SIOP follows the upfront chemotherapy principle, each has its own advantages. Here we aimed to evaluate the outcomes of CCSK in China following NWTS strategies to analyze the prognostic factors. METHODS: For this multicenter retrospective study, a total of 54 patients were enrolled from three children's hospitals, between April 2003 and December 2021. Treatment comprised upfront radical nephrectomy, followed by radiotherapy and intensive chemotherapy. Clinical records were regularly updated. Prognostic factors and survival rates were evaluated. RESULTS: The 54 enrolled patients had a median age of 37 months (range, 4 months to 11.4 years). The stage distribution was 16% stage I (n = 9), 30% stage II (n = 16), 39% stage III (n = 21), and 15% stage IV (n = 8). Among stage IV, metastasis sites included the lung (n = 6), bone (n = 1), and intra-orbital/cervical lymph node (n = 1). After a median follow-up of 5.6 years, the 5-year event-free survival (EFS) was 82.4±5.4%, and overall survival was 88.1±4.6%. The EFS was 100% for stage I, 93.8 ±6.1% for stage II, 71.1±10.0% for stage III, and 68.6±18.6% for stage IV. Univariate analysis revealed that staging (III/IV), tumor rupture, and inferior vena cava tumor thrombus were inferior prognostic factors. Multivariate analysis revealed that tumor rupture was independent poor prognostic factor (P = 0.01, HR 5.9). Among relapsed patients, relapse occurred a median of 11 months after diagnosis (range, 4-41 months), and 50% (4/8) achieved a second complete remission after multiple treatment. None of the six lung metastasis patients received lung RT, only one patient developed a relapse and was salvaged by RT after relapse. CONCLUSIONS: Tumor rupture was independent poor prognostic factor. Upfront surgery of NWTS strategies can make a definite pathology diagnosis, but how to reduce tumor rupture during surgery is important especially in developing countries. The outcomes of patients with stage I-III CCSK in China were comparable to findings in other developed countries. Better outcomes were achieved in stage IV CCSK by using an intensive chemotherapy regimen including carboplatin, which require further confirmation by AREN0321. Lung RT may be safely omitted in selected patients who achieve a compete radiographic response after 6 weeks of systemic treatment (including surgery). Treatment should be encouraged even in CCSK cases with metastasis and relapse.


Subject(s)
Kidney Neoplasms , Nephrectomy , Sarcoma, Clear Cell , Humans , Sarcoma, Clear Cell/pathology , Sarcoma, Clear Cell/therapy , Male , Female , Child , Kidney Neoplasms/pathology , Kidney Neoplasms/therapy , Child, Preschool , China/epidemiology , Infant , Retrospective Studies , Prognosis , Treatment Outcome , Survival Rate , Neoplasm Staging , Combined Modality Therapy
3.
Front Pediatr ; 12: 1341199, 2024.
Article in English | MEDLINE | ID: mdl-38957774

ABSTRACT

Objective: The aim of the study was to explore the factors influencing the availability of medications for children, and establish a machine learning model to provide an empirical basis for the subsequent formulation and improvement of relevant policies. Methods: Design: Cross-sectional survey. Setting: 12 provinces, China. Medical doctors from 25 public hospitals were enrolled. All data were randomly divided into a training set and a validation set at a ratio of 7:3. Three prediction models, namely random forest (RF), logistic regression (LR), and extreme gradient boosting (XGBoost), were developed and compared. The receiver operating characteristic curve (ROC) and the associated area under the curve (AUC) were used to evaluate the three models. A nomogram and clinical impact curve (CIC) for availability of medication were developed. Results: Fifteen of 29 factors in the database that were most likely to be selected were considered to establish the prediction model. The XGBoost model (AUC = 0.915) demonstrated better performance than the RF model (AUC = 0.902) and the LR model (AUC = 0.890). According to the Shapley additive explanation values, the five factors that most significantly affected the availability of medications for children in the XGboost model were as follows: the relatively small number of specialized dosage forms for children; unaffordable medications for children; public education on the accessibility and safety of medication for children; uneven distribution of medical resources, leading to insufficient access to medication for children; and years of service as a doctor. The CIC was used to assess the practical applicability of the factor prediction nomogram. Conclusions: The XGBoost model can be used to establish a prediction model to screen the factors associated with the availability of medications for children. The most important contributing factors to the models were the following: the relatively small number of specialized dosage forms for children; unaffordable medications for children; public education on the accessibility and safety of medication for children; uneven distribution of medical resources, leading to insufficient access to medication for children; and years of service as a doctor.

4.
Arab J Gastroenterol ; 2024 Jul 27.
Article in English | MEDLINE | ID: mdl-39069423

ABSTRACT

BACKGROUND AND STUDY AIMS: Adherent invasive Escherichia coli (AIEC) are enriched in IBD (inflammatory bowel disease) patients, but the role and mechanism of AIEC in the intestinal epithelial barrier is poorly defined. We evaluated the role of the AIEC strain E. coli LF82 in vitro and investigated the role of Th17 in this process. MATERIAL AND METHODS: After coincubation with AIEC, the epithelial barrier integrity was monitored by epithelial resistance measurements. The permeability of the barrier was evaluated by TEER (trans-epithelial electrical resistance) and mucosal-to-serosal flux rate. The presence of interepithelial tight junction proteins ZO-1 and Claudin-1 were determined by immunofluorescence and western blot analysis. Cytokines in the cell culture supernatant were assayed by enzyme-linked immunosorbent assay (ELISA). RESULTS: AIEC infection decreased TEER and increased the mucosal-to-serosal flux rate of Lucifer yellow in the intestinal barrier model in a time- and dose-dependent manner. AIEC infection decreased the expression and changed the distribution of ZO-1 and claudin-1. It also induced the secretion of cytokines such as TNF-α and IL-17. CONCLUSION: AIEC strain E. coli LF82 increased the permeability and disrupted the tight junctions of the intestinal epithelial barrier, revealing that AIEC plays an aggravative role in the inflammatory response.

5.
J Biol Chem ; 300(8): 107516, 2024 Jul 01.
Article in English | MEDLINE | ID: mdl-38960036

ABSTRACT

Focal segmental glomerulosclerosis (FSGS), a common cause of primary glomerulonephritis, has a poor prognosis and is pathologically featured by tubulointerstitial injury. Thrombospondin-1 (TSP-1) is an extracellular matrix protein that acts in combination with different receptors in the kidney. Here, we analyzed the tubular expression of TSP-1 and its receptor integrin ß3 (ITGB3) in FSGS. Previously the renal interstitial chip analysis of FSGS patients with tubular interstitial injury showed that the expression of TSP-1 and ITGB3 were upregulated. We found that the expression of TSP-1 and ITGB3 increased in the tubular cells of FSGS patients. The plasma level of TSP-1 increased and was correlated to the degree of tubulointerstitial lesions in FSGS patients. TSP-1/ITGB3 signaling induced renal tubular injury in HK-2 cells exposure to bovine serum albumin and the adriamycin (ADR)-induced nephropathy model. THBS1 KO ameliorated tubular injury and renal fibrosis in ADR-treated mice. THBS1 knockdown decreased the expression of KIM-1 and caspase 3 in the HK-2 cells treated with bovine serum albumin, while THBS1 overexpression could induce tubular injury. In vivo, we identified cyclo-RGDfK as an agent to block the binding of TSP-1 to ITGB3. Cyclo-RGDfK treatment could alleviate ADR-induced renal tubular injury and interstitial fibrosis in mice. Moreover, TSP-1 and ITGB3 were colocalized in tubular cells of FSGS patients and ADR-treated mice. Taken together, our data showed that TSP-1/ITGB3 signaling contributed to the development of renal tubulointerstitial injury in FSGS, potentially identifying a new therapeutic target for FSGS.

6.
J Tradit Chin Med ; 44(4): 722-733, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39066533

ABSTRACT

OBJECTIVE: To analyze the serum metabolic targets of the "Zhibian (BL54) through Shuidao (ST28)" acupuncture technique in cyclophosphamide (CTX)-induced premature ovarian insufficiency (POI) model rats and to elucidate the potential molecular mechanism of acupuncture in improving POI. METHODS: We used an intraperitoneal injection of CTX to establish the POI rat model (POI group) and compared serum hormone levels and ovarian histopathological changes to evaluate the effect of the Zhibian (BL54) through Shuidao (ST28) technique (ZS + POI group) on ovarian function. Then, nontargeted metabolomics was performed using rat serum by ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS). RESULTS: After acupuncture intervention, the serum hormone levels and ovarian pathological morphology of POI rats were effectively improved. Moreover, UPLC-Q-TOF/MS results showed that the ZS + POI group showed a significant reversal of the levels of 6 differential metabolites. Among them, the levels of four serum metabolic markers, divanillyltetrahydrofuran ferulate, trans-ferulic acid, tryptamine, and neuraminic acid, increased significantly. Further analysis of biological effects showed that all metabolites were involved in the regulation of reproductive hormone levels and antioxidant and antiapoptotic effects. CONCLUSIONS: The "Zhibian (BL54) through Shuidao (ST28)" acupuncture method may improve the ovarian function of POI rats by regulating serum metabolite markers to exert antioxidant and antiapoptotic effects, which provides a theoretical basis for the clinical application of acupuncture in the treatment of POI.


Subject(s)
Acupuncture Therapy , Metabolomics , Primary Ovarian Insufficiency , Animals , Primary Ovarian Insufficiency/therapy , Primary Ovarian Insufficiency/blood , Primary Ovarian Insufficiency/metabolism , Female , Rats , Humans , Rats, Sprague-Dawley , Acupuncture Points , Ovary/metabolism , Disease Models, Animal
7.
J Inflamm Res ; 17: 4001-4016, 2024.
Article in English | MEDLINE | ID: mdl-38915806

ABSTRACT

Inflammatory cytokines, interleukin-36 (IL-36), IL-37, IL-38 belong to IL-1 family. The IL-36 subfamily obtains pro- and anti-inflammatory effects on various immune responses. Cytokine IL-37, has anti-inflammatory functions in immunity, and the recently identified IL-38 negatively associated with disease pathogenesis. To date, expression of IL-36, IL-37, IL-38 is reported dysregulated in osteoarthritis (OA) and rheumatoid arthritis (RA), and may be disease markers for arthritis-related diseases. Interestingly, expression of IL-38 was different either in OA patients or animal models, and expression of IL-36Ra in synovium was different in OA and RA patients. Moreover, functional studies have demonstrated significant role of these cytokines in OA and RA progress. These processes were related to immune cells and non-immune cells, where the cytokines IL-36, IL-37, IL-38 may regulate downstream signalings in the cells, and then involve in OA, RA development. In this review, we comprehensively discuss recent advancements in cytokines and the development of OA, RA. We hope that targeting these cytokines will become a potential treatment option for OA and RA in the future.

8.
Plants (Basel) ; 13(11)2024 May 23.
Article in English | MEDLINE | ID: mdl-38891251

ABSTRACT

Owing to the rising demand for vegetable soybean products, there is an increasing need for high-yield soybean varieties. However, the complex correlation patterns among quantitative traits with genetic architecture pose a challenge for improving vegetable soybean through breeding. Herein, a genome-wide association study (GWAS) was applied to 6 yield-related traits in 188 vegetable soybean accessions. Using a BLINK model, a total of 116 single nucleotide polymorphisms (SNPs) were identified for plant height, pod length, pod number, pod thickness, pod width, and fresh pod weight. Furthermore, a total of 220 genes were found in the 200 kb upstream and downstream regions of significant SNPs, including 11 genes encoding functional proteins. Among them, four candidate genes, Glyma.13G109100, Glyma.03G183200, Glyma.09G102200, and Glyma.09G102300 were analyzed for significant haplotype variations and to be in LD block, which encode MYB-related transcription factor, auxin-responsive protein, F-box protein, and CYP450, respectively. The relative expression of candidate genes in V030 and V071 vegetable soybean (for the plant height, pod number, and fresh pod weight of V030 were lower than those of the V071 strains) was significantly different, and these genes could be involved in plant growth and development via various pathways. Altogether, we identified four candidate genes for pod yield and plant height from vegetable soybean germplasm. This study provides insights into the genomic basis for improving soybean and crucial genomic resources that can facilitate genome-assisted high-yielding vegetable soybean breeding.

9.
Se Pu ; 42(6): 496-507, 2024 Jun.
Article in Chinese | MEDLINE | ID: mdl-38845511

ABSTRACT

Porous organic polymers (POPs) are a class of materials composed of organic building blocks usually consisting of the elements C, H, O, N, and B and other light elements connected by covalent bonds. Owing to the diversity of synthesis methods in organic chemistry, POPs can be prepared by Suzuki coupling, Sonogashira-Hagihara cross-coupling, Schiff-base condensation, Knoevenagel condensation, and Friedel-Crafts alkylation. POPs show great application potential in the field of sample pretreatment because of their large specific surface area, adjustable pore size, high tailorability, and easy modification. The design of new functional building blocks is an important factor in advancing the development of POPs and is key to the efficient separation and enrichment of target molecules in complex substrates. In recent years, supramolecular-derived compounds have provided new inspiration and breakthroughs in the construction of POPs on account of their excellent host-guest recognition properties, simple functionalization strategies, and adjustable topological configurations. The "cavitand-to-framework" approach, that is, the knitting of 0D macrocycles into hierarchical 2D or 3D POPs using suitable linkers, and extension of the research scope of supramolecular chemistry from discrete cavities to rigidly layered porous organic frameworks can lead to significant improvements in the porosity and stability of supramolecular-derived compounds. They can also provide an effective means to expand the structural diversity of POPs and generate layered structures with high porosity. This review summarizes the preparation strategies and structural characteristics of supramolecular-derived POPs with different structures, such as crown ether-based POPs, cyclodextrin-based POPs, and calixarene-based POPs. The promising applications of these materials in sample pretreatment focusing on food analysis and environmental monitoring, including epoxides, organic dyes, heavy metals, algatoxins, halogens, and antibiotic drugs, are then summarized. Next, the extraction mechanisms mainly attributed to host-guest recognition, π-π stacking, and hydrogen-bonding and electrostatic interactions between the supramolecular structures and analytes are described. The key role and potential advantages of the different preparation strategies and structural characteristics of these POPs in sample pretreatment are also discussed. Finally, the future prospects and remaining challenges of supramolecular-derived POPs are proposed. Supramolecular-derived POPs can not only achieve the rapid and selective extraction of target analytes during sample pretreatment but also improve the extraction effect of online solid phase extraction technologies. However, although numerous supramolecular-derived POPs have been developed, few have been applied in the field of sample pretreatment. Thus, the expansion of the application potential of more POP materials requires further exploration and research. The design and synthesis of supramolecular-derived POPs with highly selective recognition performance remains an important research direction in the field of sample pretreatment.

10.
Biomater Sci ; 12(14): 3610-3621, 2024 Jul 09.
Article in English | MEDLINE | ID: mdl-38842122

ABSTRACT

Oxidative stress (OS) plays an important role in the emergence and prevention of neurodegenerative diseases, such as Alzheimer's disease (AD). Excess reactive oxygen species (ROS) accumulated in a neuronal cell can lead to OS, producing cell injury and death. Seeking nanoantioxidants against AD-related oxidative stress has attracted a lot of attention, especially those potential antioxidant agents derived from natural polyphenols. However, the transformation of abundant plant polyphenols to antioxidative biomaterials against OS is still challenging. In this work, we report a new method to transform amorphous tannic acid (TA) into tailorable shaped ellagic acid (EA) crystalline particles without using an organic solvent. EA crystalline particles were generated from TA, which underwent a chemical transformation, in situ metal phenolic coordination and acid-induced assembly process, and the size and shape could be controlled by varying the amount of acid. As-prepared EA crystalline particles showed excellent stability in water and lysosomal mimicking fluid and possess unique fluorescence properties and a strong response in mass spectrometry, which is beneficial for their imaging analysis in cells and tissues. More importantly, EA particles have shown significant H2O2-related ROS scavenging ability, a high cellular uptake capacity, an excellent neuroprotective effect in PC12 cells, a high drug loading capacity and BBB permeability to enter the brain. Our study suggested that the EA crystalline particles show great potential for OS-mediated AD treatment.


Subject(s)
Ellagic Acid , Neuroprotective Agents , Oxidative Stress , Reactive Oxygen Species , Tannins , Ellagic Acid/pharmacology , Ellagic Acid/chemistry , Tannins/pharmacology , Tannins/chemistry , Oxidative Stress/drug effects , PC12 Cells , Animals , Rats , Reactive Oxygen Species/metabolism , Neuroprotective Agents/pharmacology , Neuroprotective Agents/chemistry , Neuroprotective Agents/chemical synthesis , Antioxidants/pharmacology , Antioxidants/chemistry , Antioxidants/chemical synthesis , Blood-Brain Barrier/metabolism , Blood-Brain Barrier/drug effects , Hydrogen Peroxide/pharmacology , Hydrogen Peroxide/chemistry , Neuroprotection/drug effects , Green Chemistry Technology , Polyphenols
11.
World J Gastrointest Oncol ; 16(5): 1690-1704, 2024 May 15.
Article in English | MEDLINE | ID: mdl-38764816

ABSTRACT

Severe immunosuppression is a hallmark of colorectal cancer (CRC). Myeloid-derived suppressor cells (MDSCs), one of the most abundant components of the tumor stroma, play an important role in the invasion, metastasis, and immune escape of CRC. MDSCs create an immunosuppressive microenvironment by inhibiting the proliferation and activation of immunoreactive cells, including T and natural killer cells, as well as by inducing the proliferation of immunosuppressive cells, such as regulatory T cells and tumor-associated macrophages, which, in turn, promote the growth of cancer cells. Thus, MDSCs are key contributors to the emergence of an immunosuppressive microenvironment in CRC and play an important role in the breakdown of antitumor immunity. In this narrative review, we explore the mechanisms through which MDSCs contribute to the immunosuppressive microenvironment, the current therapeutic approaches and technologies targeting MDSCs, and the therapeutic potential of modulating MDSCs in CRC treatment. This study provides ideas and methods to enhance survival rates in patients with CRC.

12.
J Ethnopharmacol ; 331: 118293, 2024 Sep 15.
Article in English | MEDLINE | ID: mdl-38705430

ABSTRACT

ETHNOPHARMACOLOGICAL RELEVANCE: Da-Chai-Hu-Tang (DCHT), a Chinese traditional herbal compound, has been utilized for the treatment of Hepatic diseases in China for over 1800 years. The DCHT formula contains eight herbals: Bupleurum chinense DC. (chaihu), Scutellaria baicalensis Georgi (huangqin), Paeonia lactiflora Pall. (baishao), Pinellia ternata (Thunb.) Makino (banxia), Rheum officinale Baill. (dahuang), Citrus × aurantium L. (zhishi), Zingiber officinale Roscoe (shengjiang), Ziziphus jujuba Mill. (dazao). Clinical studies have demonstrated the effectiveness of DCHT in hepatocellular carcinoma (HCC) and its ability to enhance the immunity of patients with hepatocellular carcinoma. A total of 20 Chinese articles have been published on the use of DCHT in treating HCC. AIM OF THE STUDY: The study aimed to validate the effect of DCHT in HCC cells and to identify related targets (TP53, AKT1, BCL2, STAT3) in treating HCC by DCHT in vitro experiments. MATERIALS AND METHODS: Cell proliferation and migration were investigated in vitro. Flow cytometry analysis was used to evaluate the cell cycle and apoptosis. Apoptotic bodies in HepG2 cells were observed using a confocal microscope. Biochemical detection was employed to analyze LDH release, MDA levels, and SOD levels. Bioinformatics analysis was used to predict core targets between DCHT and HCC, as well as potential signaling pathways. The protein levels of metastasis-associated, apoptosis, and PI3K, AKT, p-AKT, and STAT3 were further determined through Western blotting. RESULTS: Following treatment with DCHT, the inhibition of viability, migration, and G2/M arrest was observed in HepG2 cells. Flow cytometry analysis and Morphological apoptosis studies provided evidence that DCHT could induce apoptosis in HepG2 cells. Biochemical detection revealed that DCHT could increase LDH release and the level of MDA, and inhibit the viability of the SOD. Bioinformatics analysis identified key targets such as TP53, AKT1, BCL2, STAT3. The PI3K/AKT/STAT3 signaling pathway emerged as a critical pathway in the KEGG enrichment analysis. Western blotting results indicated that DCHT could enhance the expression of E-cadherin, p53, and Bax, while reducing the content of N-cadherin, Bcl-2, PI3K, p-AKT, AKT1, and STAT3. CONCLUSIONS: The results proved that DCHT could inhibit the progression and metastasis of HCC by regulating the expression of E-cadherin, N-cadherin, p53, Bax, Bcl-2, PI3K, p-AKT, AKT, and STAT3 through the PI3K/AKT/STAT3 signaling pathway.


Subject(s)
Apoptosis , Cell Cycle Checkpoints , Drugs, Chinese Herbal , Liver Neoplasms , Proto-Oncogene Proteins c-akt , STAT3 Transcription Factor , Humans , STAT3 Transcription Factor/metabolism , Apoptosis/drug effects , Proto-Oncogene Proteins c-akt/metabolism , Hep G2 Cells , Drugs, Chinese Herbal/pharmacology , Cell Cycle Checkpoints/drug effects , Liver Neoplasms/drug therapy , Liver Neoplasms/pathology , Carcinoma, Hepatocellular/drug therapy , Carcinoma, Hepatocellular/pathology , Carcinoma, Hepatocellular/metabolism , Signal Transduction/drug effects , Phosphatidylinositol 3-Kinases/metabolism , Antineoplastic Agents, Phytogenic/pharmacology , Cell Movement/drug effects , Cell Proliferation/drug effects
14.
Adv Sci (Weinh) ; 11(28): e2402335, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38757666

ABSTRACT

Destructive periodontitis destroys alveolar bone and eventually leads to tooth loss. While guided bone regeneration, which is based on creating a physical barrier to hinder the infiltration of epithelial and connective tissues into defect sites, has been widely used for alveolar bone regeneration, its outcomes remain variable. In this work, a multifunctional nanofibrous hollow microsphere (NFHMS) is developed for enhanced alveolar bone regeneration. The NFHMS is first prepared via combining a double emulsification and a thermally induced phase separation process. Next, E7, a short peptide with high specific affinity to bone marrow-derived stem cells (BMSCs), is conjugated onto the surface of NFHMS. After that, bone forming peptide (BFP), a short peptide derived from bone morphology protein 7 is loaded in calcium phosphate (CaP) nanoparticles, which are further encapsulated in the hollow space of the NFHMS-E7 to form NFHMS-E7-CaP/BFP. The NFHMS-E7-CaP/BFP selectively promoted the adhesion of BMSCs and expelled the adhesion of fibroblasts and epithelial cells. In addition, the BFP is sustainedly released from the NFHMS-E7-CaP/BFP to enhance the osteogenesis of BMSCs. A rat challenging fenestration defect model showed that the NFHMS-E7-CaP/BFP significantly enhanced alveolar bone tissue regeneration. This work provides a novel bioengineering approach for guided bone regeneration.


Subject(s)
Bone Regeneration , Microspheres , Nanofibers , Animals , Bone Regeneration/physiology , Bone Regeneration/drug effects , Rats , Nanofibers/chemistry , Osteogenesis/physiology , Osteogenesis/drug effects , Rats, Sprague-Dawley , Disease Models, Animal , Calcium Phosphates/chemistry , Male
15.
ACS Appl Bio Mater ; 7(5): 3154-3163, 2024 05 20.
Article in English | MEDLINE | ID: mdl-38695332

ABSTRACT

ß-Galactosidase (ß-Gala) is an essential biomarker enzyme for early detection of breast tumors and cellular senescence. Creating an accurate way to monitor ß-Gala activity is critical for biological research and early cancer detection. This work used fluorometric, colorimetric, and paper-based color sensing approaches to determine ß-Gala activity effectively. Via the sensing performance, the catalytic activity of ß-Gala resulted in silicon nanoparticles (SiNPs), fluorescent indicators obtained via a one-pot hydrothermal process. As a standard enzymatic hydrolysis product of the substrate, kaempferol 3-O-ß-d-galactopyranoside (KOßDG) caused the fluorometric signal to be attenuated on kaempferol-silicon nanoparticles (K-SiNPs). The sensing methods demonstrated a satisfactory linear response in sensing ß-Gala and a low detection limit. The findings showed the low limit of detection (LOD) as 0.00057 and 0.098 U/mL for fluorometric and colorimetric, respectively. The designed probe was then used to evaluate the catalytic activity of ß-Gala in yogurt and human serum, with recoveries ranging from 98.33 to 107.9%. The designed sensing approach was also applied to biological sample analysis. In contrast, breast cancer cells (MCF-7) were used as a model to test the in vitro toxicity and molecular fluorescence imaging potential of K-SiNPs. Hence, our fluorescent K-SiNPs can be used in the clinic to diagnose breast cellular carcinoma, since they can accurately measure the presence of invasive ductal carcinoma in serologic tests.


Subject(s)
Breast Neoplasms , Kaempferols , Nanoparticles , Silicon , beta-Galactosidase , Female , Humans , beta-Galactosidase/metabolism , Biocompatible Materials/chemistry , Biocompatible Materials/pharmacology , Biocompatible Materials/chemical synthesis , Breast Neoplasms/diagnosis , Breast Neoplasms/pathology , Colorimetry , Kaempferols/chemistry , Kaempferols/pharmacology , MCF-7 Cells , Molecular Structure , Nanoparticles/chemistry , Particle Size , Silicon/chemistry
16.
Foods ; 13(9)2024 Apr 23.
Article in English | MEDLINE | ID: mdl-38731663

ABSTRACT

A novel fibrinolytic enzyme was produced by the liquid fermentation of Coprinus comatus. The enzyme was purified from the culture supernatant by hydrophobic interactions, gel filtration, and ion exchange chromatographies. It was purified by 241.02-fold, with a specific activity of 3619 U/mg and a final yield of 10.02%. SDS-PAGE analysis confirmed the purity of the enzyme, showing a single band with a molecular weight of 19.5 kDa. The first nine amino acids of the N-terminal of the purified enzyme were A-T-Y-T-G-G-S-Q-T. The enzyme exhibited optimal activity at a temperature of 42 °C and pH 7.6. Its activity was significantly improved by Zn2+, K+, Ca2+, Mn2+, and Mg2+ while being inhibited by Fe2+, Fe3+, Al2+, and Ba2+. The activity of the enzyme was completely inhibited by ethylenediamine tetraacetic acid (EDTA), and it was also dose-dependently inhibited by phenylmethylsulfonyl fluoride (PMSF) and soy trypsin inhibitor (SBTI). However, inhibitors such as N-α-tosyl-L-phenylalanine chloromethyl ketone (TPCK), aprotinin, and pepstatin did not significantly affect its activity, suggesting that the enzyme was a serine-like metalloproteinase. The enzyme acted as both a plasmin-like fibrinolytic enzyme and a plasminogen activator, and it also exhibited the capability to hydrolyze fibrinogen and fibrin. In vitro, it demonstrated the ability to dissolve blood clots and exhibit anticoagulant properties. Furthermore, it was found that the enzyme prolonged activated partial thromboplastin time (APTT), prothrombin time (PT), and thrombin time (TT), and reduced the levels of fibrinogen (FIB) and prothrombin activity (PA). Based on these studies, the enzyme has great potential to be developed as a natural agent for the prevention and treatment of thrombotic diseases.

17.
J Vis Exp ; (207)2024 May 10.
Article in English | MEDLINE | ID: mdl-38801269

ABSTRACT

Thread-embedding therapy (TEAT) is a treatment that prevents and manages diseases by inserting a biodegradable suture into an acupoint, providing long-lasting stimulation. TEAT is a simple approach that avoids the discomfort of regular acupuncture and provides sustained therapeutic effects. This article discusses the potential impact of TEAT on the learning and memory abilities of rats with Alzheimer's disease-like symptoms. Since chemically induced neuronal degeneration and cognitive impairments in rats does not entirely reflect the true pathological changes observed in Alzheimer's disease. Consequently, our research group has designated these manifestations as Alzheimer's disease-like symptoms. A protocol has been established to outline the selection of acupoints, the operation process, and necessary precautions for the head and lower back. The experiment was conducted on three groups: a control group, a model group, and a TEAT group, each containing 6 rats. To induce Alzheimer's disease-like symptoms, rats were intraperitoneally injected with D-galactose for 7 weeks (49 days). The rats in the TEAT group received acupoint catgut embedding treatment. Following the intervention period, a Morris Water Maze (MWM) was conducted to evaluate the rats' learning and memory. Subsequently, the rats were sacrificed, and their brain tissue was examined. A histological examination was performed to understand the effects of TEAT on the pathology of rats exhibiting symptoms of Alzheimer's disease. This study suggests that TEAT may improve learning and memory in rats with Alzheimer's disease-like symptoms, indicating a potentially promising new treatment approach for this neurodegenerative condition.


Subject(s)
Acupuncture Therapy , Alzheimer Disease , Animals , Alzheimer Disease/therapy , Acupuncture Therapy/methods , Rats , Disease Models, Animal , Acupuncture Points , Sutures , Male , Rats, Sprague-Dawley , Maze Learning/physiology
18.
J Vis Exp ; (206)2024 Apr 26.
Article in English | MEDLINE | ID: mdl-38738896

ABSTRACT

Compared to filiform needle therapy, fire-needle therapy has both the stimulation of needles and the warming effect of heat, making it have unexpected effects on some chronic diseases and incurable diseases. Osteoporosis (OP) has a high incidence in postmenopausal women and middle-aged and elderly men, and the treatment cycle is long. According to Traditional Chinese Medicine (TCM), Lingnan fire-needle therapy has shown potential in treating osteoporosis. However, there is still a long way to go before it can be widely used. This article focuses on the application of Lingnan fire-needle therapy in the intervention of OP in rats. It covers the selection of needle tools, acupuncture point selection, positioning of rats' bodies, and fixation methods. We also outline the steps and precautions to be taken during and after needling with fire needles. The experiment was done with three groups: a normal group, a model group, and a fire-needle group, each containing 10 rats. The rats in the fire-needle group were treated with fire-needle intervention for six sessions. After the intervention period, we collected femoral specimens and performed micro-CT scans. The results suggest that fire needling can enhance bone morphology and mineral density in OP rats. This information can serve as a methodological basis for conducting basic research on fire-needle therapy.


Subject(s)
Acupuncture Therapy , Disease Models, Animal , Osteoporosis , Animals , Rats , Osteoporosis/therapy , Female , Acupuncture Therapy/methods , Acupuncture Therapy/instrumentation , Rats, Sprague-Dawley , Needles , Medicine, Chinese Traditional/methods , Male
19.
Health Commun ; : 1-10, 2024 Apr 10.
Article in English | MEDLINE | ID: mdl-38600670

ABSTRACT

Traditional chopstick culture is widely recognized as a vital factor associated with health behavior. After the outbreak of COVID-19 in China, the Gongkuai campaign aims to change long-held traditions of communal eating habits. Little is known about the effect of individuals' perception of traditional chopstick culture and other factors on Gongkuai campaign-targeted goal. This study investigates how social-environmental and cognitive factors motivate individuals to use serving chopsticks (the Chinese Gongkuai campaign-targeted goal) and how such effects are moderated by traditional chopstick culture. Data was collected using a nationwide online survey and analyzed using structural equation modeling. The findings revealed that campaign-generated interpersonal communication positively affects individual cognitive factors. Furthermore, cognitive factors promote behavioral intentions to use serving chopsticks. While traditional chopstick culture does not directly influence an intention to use serving chopsticks, it plays a different role in the relationships between three cognitive factors and serving chopsticks use intention. Based on the results, policy implications about how to motivate individuals to use serving chopsticks are discussed.

20.
Drug Discov Today ; 29(7): 103989, 2024 Jul.
Article in English | MEDLINE | ID: mdl-38663580

ABSTRACT

As an important proangiogenic factor, platelet-derived growth factor (PDGF) and its receptor PDGFR are highly expressed in a variety of tumors, fibrosis, cardiovascular and neurodegenerative diseases. Targeting the PDGF/PDGFR pathway is therefore a promising therapeutic strategy. At present, a variety of PDGF/PDGFR targeted drugs with potential therapeutic effects have been developed, mainly including PDGF agonists, inhibitors targeting PDGFR and proteolysis targeting chimera (PROTACs). This review clarifies the structure, biological function and disease correlation of PDGF and PDGFR, and it discusses the current status of PDGFR-targeted drugs, so as to provide a reference for subsequent research.


Subject(s)
Platelet-Derived Growth Factor , Receptors, Platelet-Derived Growth Factor , Humans , Receptors, Platelet-Derived Growth Factor/antagonists & inhibitors , Receptors, Platelet-Derived Growth Factor/metabolism , Platelet-Derived Growth Factor/metabolism , Platelet-Derived Growth Factor/antagonists & inhibitors , Animals , Molecular Targeted Therapy
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