Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 1.711
Filter
1.
International Eye Science ; (12): 981-989, 2022.
Article in Chinese | WPRIM | ID: wpr-924218

ABSTRACT

@#AIM: To determine the relationship between interleukin-8(IL-8)levels in aqueous ocular samples and diabetic retinopathy(DR)through systematic evaluation and Meta-analysis. <p>METHODS: The PubMed, Embase and Web of Science database were searched from January 2010 to June 2021. A random effects model was used to combine the results, and the sensitivity analysis was performed to determine the stability and reliability of the arithmetic results, and subgroup analysis was used to identify possible sources of heterogeneity. <p>RESULTS: A total of 25 case-control studies were included. IL-8 levels in patients with DR were significantly higher than those in patients without DR(<i>SMD</i>: 1.57, 95%<i>CI</i>: 1.19-1.95, <i>P</i><0.01). Sensitivity analysis shows that the calculation results of random effects are stable and reliable. Subgroup analysis based on test method, region, sample source, and type of DR showed that the choice of these factors greatly influenced the relationship between IL-8 levels and patients with DR. Among them, the samples from Bead-based multivariate analysis(<i>I</i> 2=18%, <i>P</i>=0.27), Europe(<i>I</i> 2=38%, <i>P</i>=0.17)and nonproliferative diabetic retinopathy(NPDR)(<i>I</i> 2=0%, <i>P</i>=0.49)showed good consistency. ELISA, American, Asian, vitreous fluid, proliferative diabetic retinopathy(PDR)and other factors may increase the effect size.<p>CONCLUSION: Elevated IL-8 levels in aqueous eye solution are associated with the risk of DR, and IL-8 may serve as a potential predictor or therapeutic target for DR.

2.
Article in Chinese | WPRIM | ID: wpr-943092

ABSTRACT

ObjectiveTo obtain content characteristics of inorganic elements in Scutellariae Radix (aged 1-4 years), and to explore the feasibility of identifying the growth years of Scutellariae Radix based on characteristic spectrum of inorganic elements combined with chemometric models. MethodAfter microwave digestion, the contents of Mn, Zn, Ca, Fe, Mg, Na, K, Cr, Cu, Se, As, Cd, Hg, Pb and Ni in 21 batches of Scutellariae Radix were determined by inductively coupled plasma atomic emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS). Meanwhile, characteristic spectrum of inorganic elements in samples was drawn. The identification model was constructed to discriminate the growth years of Scutellariae Radix based on the combination of principal component analysis (PCA), Fisher discriminant function and support vector machine (SVM). ResultThe contents of Mn (7.79-36.48 μg·g-1), Zn (10.12-31.43 μg·g-1), Cu (6.38-17.20 μg·g-1), K (2.98-13.89 μg·g-1), Mg (3.45-7.78 μg·g-1) and Ca (2.32-7.09 μg·g-1) in Scutellariae Radix were detected by ICP-OES and ICP-MS, and their contents increased with the prolongation of growth years. PCA results showed that Cu, Ni, Cd, Na, Mg, Fe, Ca, Zn, Mn and Hg were characteristic elements of Scutellariae Radix. Samples with different years could be divided into four categories in the spatial characteristic diagram of Fisher discriminant analysis. The correct rate of SVM model for identifying the growth years of samples was 95.2%. ConclusionThis established method is accurate and rapid for discriminating the growth years of Scutellariae Radix, which can provide reference for the identification of other Chinese medicinal materials. It is suggested that some elements should be considered as indexes in subsequent construction of the quality evaluation system of Scutellariae Radix.

3.
Article in Chinese | WPRIM | ID: wpr-941047

ABSTRACT

OBJECTIVE@#To investigate the impact of postoperative serious cardiovascular adverse events (CAE) on outcomes of patients undergoing craniotomy for intracranial aneurysm clipping.@*METHODS@#This retrospective cohort study was conducted among the patients undergoing craniotomy for intracranial aneurysm clipping during the period from December, 2016 to December, 2017, who were divided into CAE group and non-CAE group according to the occurrence of Clavien-Dindo grade ≥II CAEs after the surgery. The perioperative clinical characteristics of the patients, complications and neurological functions during hospitalization, and mortality and neurological functions at 1 year postoperatively were evaluated. The primary outcome was mortality within 1 year after the surgery. The secondary outcomes were Glasgow outcome scale (GOS) score at 1 year, lengths of postoperative hospital and intensive care unit (ICU) stay, and Glasgow coma scale (GCS) score at discharge.@*RESULTS@#A total of 361 patients were enrolled in the final analysis, including 20 (5.5%) patients in CAE group and 341 in the non-CAE group. No significant differences were found in the patients' demographic characteristics, clinical history, or other postoperative adverse events between the two groups. The 1-year mortality was significantly higher in CAE group than in the non-CAE group (20.0% vs 5.6%, P=0.01). Logistics regression analysis showed that when adjusted for age, gender, emergency hospitalization, subarachnoid hemorrhage, volume of bleeding, duration of operation, aneurysm location, and preoperative history of cardiovascular disease, postoperative CAEs of Clavien-Dindo grade≥II was independently correlated with 1-year mortality rate of the patients with an adjusted odds ratio of 3.670 (95% CI: 1.037-12.992, P=0.04). The patients with CEA also had a lower GOS score at 1 year after surgery than those without CEA (P=0.002). No significant differences were found in the occurrence of other adverse events, postoperative hospital stay, ICU stay, or GCS scores at discharge between the two groups (P > 0.05).@*CONCLUSION@#Postoperative CAEs may be a risk factor for increased 1-year mortality and disability in patients undergoing craniotomy for intracranial aneurysms.


Subject(s)
Craniotomy/adverse effects , Humans , Intracranial Aneurysm/surgery , Postoperative Period , Retrospective Studies , Subarachnoid Hemorrhage/surgery , Treatment Outcome
4.
Article in Chinese | WPRIM | ID: wpr-940567

ABSTRACT

ObjectiveTo explore the mechanism of Tongbi Jiangu prescription (TBJG) in the treatment of knee osteoarthritis (KOA) based on network pharmacology and molecular docking,and further verify it by cell experiments. MethodThe active components and the corresponding targets of TBJG were screened out according to the traditional Chinese medicine systems pharmacology database and analysis platform(TCMSP). The targets of KOA were obtained from GeneCards,online mendelian inheritance in man(OMIM), and DrugBank. The common targets of active components of TBJG and KOA were the targets of TBJG against KOA. The active component-target network and protein-protein interaction (PPI) network were constructed by Cytoscape 3.7.2. STRING was used for PPI network analysis. DAVID was used for gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) enrichment analyses. Key targets and core active components were selected for molecular docking by AutoDock. The results of network pharmacology were verified by cell experiments and the pharmacodynamic responses were observed. ResultThe prediction of network pharmacology showed that there were 111 active components of TBJG in the treatment of KOA. The core active components were quercetin,kaempferol, and β-sitosterol,and the key targets were interleukin-1β(IL-1β), matrix metalloproteinase-3 (MMP-3),and tumor necrosis factor-α (TNF-α). Biological processes (BP) in GO analysis mainly involved inflammatory response,response to lipopolysaccharide,apoptosis signaling pathway,and regulation of DNA activity in binding transcription factor. Cellular components (CC) included plasma membrane protein complex,RNA polymerase Ⅱ transcription factor complex,membrane raft,and serine/threonine protein kinase complex. Molecular functions (MF) were mainly enriched in cytokine receptor binding,nuclear receptor activity,protein domain specific binding,serine hydrolase activity,chemokine receptor binding,and activity of nitric oxide synthase regulator. As revealed by the KEGG analysis, the relevant signaling pathways were nuclear factor(NF)-κB, Janus kinase(JAK)/signal transducer and activator of transcription(STAT), and Wnt signaling pathways. Molecular docking results showed that the core active components had good binding activities with key targets. The experimental results showed that TBJG could down-regulate IL-1β, MMP-3,TNF-α, and NF-κB p65 expression levels (P<0.05),and up-regulated NF-κB inhibitor(IκB)-α(P<0.05). ConclusionThe mechanism of TBJG in the treatment of KOA lies in the application of active components such as quercetin,kaempferol, and β-sitosterol with IL-1β,MMP-3, and TNF-α as key targets through the NF-κB,JAK/STAT, and Wnt signaling pathways.

5.
Article in Chinese | WPRIM | ID: wpr-940468

ABSTRACT

Xiao Xumingtang in The Catalogue of Famous Ancient Classics (The First Batch) issued by the National Administration of Traditional Chinese Medicine is derived from the Important Prescriptions Worth a Thousand Gold for Emergency (Bei Ji Qian Jin Yao Fang) written by SUN Si-miao in the Tang dynasty. The present study systematically explored the origin, development, historical evolution, and clinical application of Xiao Xumingtang. As revealed by the results, Xiao Xumingtang as well as its analogues are primary prescriptions indicated for apoplexy before the Tang and Song dynasties and serve as the benchmark for the treatment of apoplexy. After the Song dynasty, due to the changes in the understanding of the pathogenesis of apoplexy and the limitations of the understanding of Xiao Xumingtang, its clinical application to apoplexy gradually decreased. In modern times, it has been re-recognized and applied, during which its clinical applications have undergone great changes. Its clinical applications are extensive, involving a variety of diseases related to the brain and nervous systems, such as stroke and its sequelae, peripheral facial paralysis, rheumatoid arthritis, hypertension, and other diseases related to the motor nervous system. Its primary indications are stroke and its sequelae, followed by peripheral facial paralysis. Other new indications are gradually found. This study is expected to provide references for the clinical application of Xiao Xumingtang and the transformation of new drugs.

6.
Article in Chinese | WPRIM | ID: wpr-940430

ABSTRACT

ObjectiveTo investigate the quality variation of Lonicera japonica flower from different harvesting periods by ultraviolet visible(UV-Vis) fingerprint combined with chemometrics. MethodTwenty-five L. japonica flower samples from five harvesting periods, including young bud stage,green bud stage,white bud stage,silver and golden flower stages, were collected, with five samples for each stage. UV-Vis fingerprints of L. japonica flower from different harvesting periods were established in the context of the optimum extraction method based on the single factor experiment. The results showed that the absorption values at 209,216,226,250,280,303,318, and 350 nm were significantly different. Moreover,after data pretreatment and normalization,multivariate statistical analyses, such as principal component analysis (PCA),partial least squares discriminant analysis (PLS-DA),and orthogonal PLS-DA (OPLS-DA)were performed by SIMCA-P+ to establish the quality variation model of L. japonicas flower from harvesting periods. ResultAs revealed by PCA and PLS-DA, L. japonicas flower samples from five harvesting periods were clustered separately and closely in a harvesting time-dependent manner, suggesting that the content of components contained in samples from different harvesting periods was highly distinct and correlated with harvesting periods. The pairwise comparison of OPLS-DA indicated that triterpenoids or volatile oils were the main components causing the changes from the young bud stage to the green bud stage,and the content of them decreased. The main components from the green bud stage to the white bud stage were triterpenoids (or iridoids),volatile oils,phenolic acids, or flavonoids,and the content of them decreased, which was consistent with the HPLC result of chlorogenic acid. From the white bud stage to the silver flower stage, the main components were iridoids (increasing in content) and triterpenoids (or volatile oils) (decreasing in content). The main altered components from the silver flower stage to the golden flower stage were triterpenoids (or volatile oils) whose content increased. ConclusionThis method is simple and feasible, which can provide references for the quality control of Chinese medicine.

7.
Article in Chinese | WPRIM | ID: wpr-939675

ABSTRACT

OBJECTIVE@#To investigate the effects of dasatinib on the maturation of monocyte-derived dendritic cells (moDCs) derived from healthy donors (HDs) and chronic myelogenous leukemia (CML) patients.@*METHODS@#Peripheral blood mononuclear cells (PBMCs) were isolated from HDs (n=10) and CML patients (n=10) who had got the remission of MR4.5 with imatinib treatment. The generation of moDCs from PBMCs was completed after 7 days of incubation in DC I culture medium, and another 3 days of incubation in DC II culture medium with or without 25 nmol/L dasatinib. On the 10th day, cells were harvested and expression of molecules of maturation related marker were assessed by flow cytometry. The CD80+CD86+ cell population in total cells was gated as DCs in the fluorescence-activated cell storting (FACS) analyzing system, then the expression of CD83, CD40 or HLA-DR in this population was analyzed respectively.@*RESULTS@#The proportion of CD80+CD86+ cells in total cells didn't show a statistical difference between HD group and patient group (89.46%±9.70% vs 87.39%±9.34%, P=0.690). Dasatinib significantly enhanced the expression of the surface marker CD40 (P=0.008) and HLA-DR (P=0.028) on moDCs derived from HDs compared with the control group, while the expression of CD83 on moDCs didn't show a significant difference between dasatinib group and the control group (P=0.428). Meanwhile, dasatinib significantly enhanced the expression of the surface marker CD40 (P=0.023), CD83 (P=0.038) and HLA-DR (P=0.001) on moDCs derived from patients compared with the control group.@*CONCLUSION@#For CML patients, the same high proportion of moDCs as HDs can be induced in vitro, which provides a basis for the application of DC-based immunotherapy strategy. Dasatinib at the concentration of 25 nmol/L can efficiently promote the maturation of moDCs derived from HDs and CML patients in vitro. Dasatinib shows potential as a DC adjuvant to be applied in DC-based immunotherapy strategies, such as DC vaccine and DC cell-therapy.


Subject(s)
Cell Differentiation , Cells, Cultured , Dasatinib/pharmacology , Dendritic Cells , HLA-DR Antigens/pharmacology , Humans , Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism , Leukocytes, Mononuclear , Monocytes
8.
Article in Chinese | WPRIM | ID: wpr-939666

ABSTRACT

OBJECTIVES@#To investigate the differences in non-suicidal self-injury (NSSI) behaviors between only-child and non-only-child adolescents with mood disorders.@*METHODS@#A three-stage sampling method was used to perform a cross-sectional survey of 529 adolescents, aged 12-18 years, who had mood disorders and NSSI behaviors. These adolescents were sampled from the outpatient service of 20 mental hospitals in 9 provinces of China from August to November 2020. A self-made questionnaire was used to collect general demographic data. The Functional Assessment of Self-Mutilation, Beck Scale for Suicide Ideation, Kessler Psychological Distress Scale, Stress Mindset Measure-General, Multidimensional Scale of Perceived Social Support, Multidimensional Students' Life Satisfaction Scales, and Rosenberg Self-Esteem Scale were used to collect the information on self-injury behaviors and psychological factors in these adolescents.@*RESULTS@#A total of 529 adolescents with mood disorders and NSSI behaviors were surveyed, among whom 375 were only-child adolescents and 154 were non-only-child adolescents. Compared with the non-only-child group, the only-child group had a significantly higher total score of Functional Assessment of Self-Mutilation (P<0.05) .The type and frequency of self-injury in the only-child group were significantly higher than those in the non-only-child group (P<0.05). Psychological analysis showed that compared with the non-only-child group, the only-child group had a significantly lower score of self-esteem (P<0.05) and significantly higher scores of psychological distress and depressive symptoms (P<0.05). The multiple linear regression analysis showed that the score of suicidal ideation was positively correlated with the frequency of NSSI behaviors in both only-child and non-only-child adolescents with mood disorders (P<0.05); in the only-child adolescents, the level of self-esteem was negatively correlated with the frequency of NSSI behaviors (P<0.05), and the score of stress perception was positively correlated with the frequency of NSSI behaviors (P<0.05); in the non-only-child adolescents, the score of anxious emotion was positively correlated with the frequency of NSSI behaviors (P<0.05).@*CONCLUSIONS@#Among the adolescents with mood disorders and NSSI behaviors, the only-child adolescents tend to have a higher frequency of self-injury and poorer mental health, and therefore, the only-child adolescents with mood disorders and NSSI behaviors need more attention.


Subject(s)
Adolescent , Cross-Sectional Studies , Humans , Mood Disorders , Risk Factors , Self Mutilation , Self-Injurious Behavior/psychology , Suicide, Attempted/psychology
9.
Article in Chinese | WPRIM | ID: wpr-936056

ABSTRACT

The incidence of adenocarcinoma of esophagogastric junction (AEG) is increasing at home and abroad. Laparoscopic surgery has gradually become the main means of surgical treatment of this kind of tumor. However, due to the special anatomical position of the tumor, the high position away from the broken esophagus and the narrow space in the mediastinum, laparoscopic anastomosis has the characteristics of difficult anastomosis and high anastomosis position. There is a high risk of anastomotic leakage after operation, which may cause serious consequences. Early identification of anastomotic leakage and unobstructed drainage by various means are the key to treatment. With the development of endoscopic technology, endoscopic methods such as covered stent and vacuum-assisted closure further improve the treatment efficacy. As a salvage measure, surgical treatment can achieve good treatment outcome, while accompanied by risk of complications and mortality, so we must strictly grasp the indications.


Subject(s)
Adenocarcinoma/surgery , Anastomosis, Surgical , Anastomotic Leak/surgery , Esophageal Neoplasms/surgery , Esophagogastric Junction/surgery , Gastrectomy/methods , Humans , Laparoscopy/methods , Retrospective Studies , Stomach Neoplasms/surgery
10.
Article in Chinese | WPRIM | ID: wpr-935800

ABSTRACT

Objective: To investigate and monitor the occupational hazards in the Teaching and Research Laboratory (hereinafter referred to as the place) of a university, so as to provide basis for the occupational health work in the university. Methods: November 2014, 46 places in a university were selected by stratified random sampling, and the occupational health risk factors were investigated. Results: Indoor temperature, humidity, sulfur dioxide, nitrogen dioxide, carbon monoxide and carbon dioxide were detected in 21 sites, xylene and hydrofluoric acid were detected in 6 sites, and colony count was detected in 18 sites, the power frequency electric field intensity was measured in 23 places, and the x-ray radiation dose was measured in 4 places. Noise was measured at 21 sites, with 7 sites exceeding the standards accounting for 33.3% (7/21) ; 21 sites were detected for illumination and 10 sites for nonconformity accounting for 47.6% (10/21) ; 10 sites for Microwave Radiation and 3 sites exceeding the standards accounting for 30% (3/10) ; and 25 sites were detected for outdoor air volume and air velocity, the percentage of unqualified was 72% (18/25) in 18 sites, among which the wind velocity was statistically significant in teaching, research and experimental sites (P=0.010) . Conclusion: The occupational hazards in the teaching and research places of a university should be paid attention to, and the engineering protection and personal protection should be strengthened in the experiment.


Subject(s)
Air Pollution, Indoor/analysis , Humans , Humidity , Nitrogen Dioxide/analysis , Occupational Exposure , Occupational Health , Universities
11.
Article in Chinese | WPRIM | ID: wpr-935794

ABSTRACT

Objective: To explore the occupational hazards caused by three kinds of welding operations, and to provide data support for individual protection. Methods: In October 2020, the welding fumes, metal elements and welding arc generated by three welding operations of argon gas shielded welding (JS80 welding wire) , manual welding (ZS60A welding rod) and carbon dioxide shielded welding (907A flux cored wire) were collected and measured in the welding laboratory. The samples were analyze and compare in the laboratory, and the differences of the occupational hazard factors of the three welding operations were judged. Results: The concentration of welding fume produced by carbon dioxide shielded welding, manual welding (ZS60A electrode) , and argon gas shielded welding (JS80 welding wires) were 6.80 mg/m(3), 6.17 mg/m(3), and 3.13 mg/m(3), respectively. The effective irradiance of the welding arc outside the welding mask from high to low is manual welding (ZS60A electrode) , carbon dioxide shielded welding (907A flux-cored welding wire) , and argon shielded welding (JS80 welding wire) , respectively 1 010.7, 740.9, 589.5 μW/cm(2). The long-wave ultraviolet UVA intensity generated by argon shielded welding (JS80 welding wire) is the largest, which is 1 500 μW/cm(2). The content of Mn in the three welding operations is the highest, and JS80 welding wire has the highest Mn content of 128493.2 mg/kg. 907A flux cored wire has the highest Ti content, which is 24355.5mg/kg. The electrode ZS60A has the highest Cu content, which is 24422.12 mg/kg. Conclusion: The intensity of occupational hazards is different in the three kinds of welding operations, so the methods of personal protective equipment, field exposure assessment and health monitoring should be more targeted.


Subject(s)
Air Pollutants, Occupational/analysis , Argon/analysis , Carbon Dioxide/analysis , Gases/analysis , Occupational Exposure/analysis , Welding/methods
12.
Article in Chinese | WPRIM | ID: wpr-935755

ABSTRACT

Objective: To understand the relationship between female breast cancer and occupational risk factors in Beijing, and provide scientific basis for the formulation of prevention strategies and measures. Methods: From June to December 2019, A 1: 1 case-control study was adopted, eight medical institutions in Beijing were selected as the research objects. Patients with breast cancer diagnosed by medical institutions were selected as case group and non breast cancer patients in the same medical institution as control group. A total of 973 subjects were included, including 495 in the case group and 478 in the control group. A one-to-one survey was conducted using a questionnaire uniformly compiled by the Beijing Centers for Disease Control and Prevention. The survey content mainly includes basic demographic characteristics and occupational risk factors. The Trait Coping Style Questionnaire (TCSQ) was used to investigate the corresponding methods, including two aspects: positive coping and negative coping. First, chi square test or Wilcoxon rank sum test were used for univariate analysis. Then Lasso regression was used to screen the risk factors of breast cancer. Finally, the risk factors were screened by multivariate logistic regression analysis. Results: Education lovel was 49.64%, body mass index (BMI) was 18.4~23.9 kg/m(2), accounting for 48.82%, marital status ws 84.48%. Compared with no night shift history, there was a significant increase in risk of breast cancer at night shift history (OR=1.70, 95% CI: 1.25~2.30, P<0.05) . Compared with most of the sitting posture and sometimes standing, the risk of breast cancer was increased, and the difference was statistically significant (OR=2.01, 95%CI: 1.40~2.90, P<0.05) . Conclusion: In the occupation risk factors, night shift work and working posture are related to the incidence of breast cancer in women, establishing a good schedule and avoiding long standing can effectively prevent and reduce the occurrence of breast cancer.


Subject(s)
Beijing , Breast Neoplasms/epidemiology , Case-Control Studies , Female , Humans , Logistic Models , Risk Factors
13.
Chinese Journal of Pediatrics ; (12): 339-344, 2022.
Article in Chinese | WPRIM | ID: wpr-935698

ABSTRACT

Objective: To investigate the clinical and genetic characteristics of epilepsy associated with chromosome 16p11.2 microdeletion. Methods: The patients (n=10) with 16p11.2 microdeletion found in children with epilepsy treated in Beijing Children's Hospital Affiliated to Capital Medical University from January 2018 to January 2021 were collected. The clinical manifestations, gene variations and prognosis were analyzed retrospectively. Results: A total of 10 children's data were collected, including 5 male and 5 female. The onset age of epilepsy was 4.5 (4.1,5.0) months. Regarding the seizure types, 7 cases had focal seizures with secondary generalization, 2 cases had generalized seizures, and 1 case had tonic seizures and spasms. Nine cases had cluster seizure attacks and 3 cases had status epilepticus. Seven cases had focal or multifocal epileptiform discharges in interictal electroencephalogram (EEG), 3 cases had borderline or normal EEG. Brain magnetic resonance imaging showed polymicrogyria in 1 case, paraventricular leukomalacia in 1 case, delayed myelination of white matter in 3 cases, and no obvious abnormalities in the other 5 cases. The patients were followed up for 0.5-3.5 years, with 1-3 kinds of antiepileptic drugs taken orally. The case with polymicrogyria still had seizures, however the other 9 cases had seizures controlled. The age of the last seizure attack was 8 (6, 12) months. There were 6 cases with mental and motor developmental delay before epilepsy onset. During the follow-up, 7 cases were retarded to varying degrees, while 3 cases had normal development. Regarding the genetic detection methods, 7 cases underwent whole exome sequencing, 2 cases underwent whole genome copy number variation detection, and 1 case underwent whole genome sequencing. The length of the 16p11.2 deletion in 10 cases ranged from 525 to 951 kb, and all contained the PRRT2 gene intact. Six cases were de novo variants, 1 case was inherited from the mother who had a history of convulsions in early childhood, and the source of variant was not verified in 3 cases, none of whose parents had relevant phenotype. Conclusions: The epilepsy associated with 16p11.2 microdeletion is mainly induced by the heterozygous deletion of PRRT2 gene in this region, however the phenotype is usually severe, and often combined with developmental and epileptic encephalopathy. Detection of copy number variation should be emphasized in children whose etiology is considered genetic but second-generation sequencing result is negative.


Subject(s)
Child, Preschool , Chromosomes , DNA Copy Number Variations , Electroencephalography , Epilepsy/genetics , Female , Humans , Male , Polymicrogyria/genetics , Retrospective Studies , Seizures/genetics
14.
International Eye Science ; (12): 1309-1312, 2022.
Article in Chinese | WPRIM | ID: wpr-935004

ABSTRACT

Diabetic retinopathy(DR), one of the common complications of diabetes, is a major cause of blindness. Traditionally, DR has been considered primarily a microvascular disease, and as research has progressed, it is now believed that disruption of the neuro-glia-vascular unit(NVU)and imbalance in its coupling mechanisms(coupling)play a key role in the early onset of DR. Understanding the cellular and molecular basis of NVU and how diabetes alters normal cellular communication and disrupts the cellular environment is important for the early prevention and treatment of DR. This paper summarizes the retinal NVU and its involvement in the molecular mechanism of DR pathogenesis, DR treatment based on retinal NVU repair, and discusses the future prospects and problems of DR.

15.
Article in Chinese | WPRIM | ID: wpr-934322

ABSTRACT

Objective:To observe the multimodal image features of inflammatory lesions and choroidal neovascularization (CNV) in multifocal choroiditis (MFC).Methods:A retrospective clinical analysis. A total of 90 eyes of 46 patients with MFC diagnosed in the Department of Ophthalmology of Yunnan University Affiliated Hospital from May 2017 to April 2021 were included in the study. Among them, there were 21 males and 25 females; the average age was 38.30±8.97 years old. Twenty-nine cases of MFC were diagnosed in the past, and they visited the doctor again due to new symptoms; 17 cases without a clear past medical history were the first visits. All eyes underwent color fundus photography, fluorescein fundus angiography (FFA), optical coherence tomography (OCT), and OCT angiography (OCTA). With reference to the literature and the results of multimodal fundus imaging examinations, MFC lesions were divided into active CNV lesions, inactive CNV lesions, active inflammatory lesions, and inactive inflammatory lesions, with 31 (34.4%, 31/90), 12 (13.3%, 12/90), 26 (28.9%, 26/90), 90 (100.0%, 90/90) eyes. Nineteen eyes were treated with anti-vascular endothelial growth factor drugs. To summarize and analyze the manifestations of inflammatory lesions and CNV lesions in different imaging examinations. The Wilcoxon rank test was used to compare the detection rate of CNV lesions between FFA and OCTA.Results:In eyes with active inflammatory lesions and active CNV lesions, yellow-white lesions, retinal hemorrhage and exudation were seen on fundus color photography; FFA examination showed fluorescein leakage in the lesions; OCT examination showed retinal pigment epithelium (RPE) layer in the lesions was uplifted, the boundary was unclear, combined with subretinal and intraretinal fluid; OCTA examination showed that there was no blood flow signal in each layer of vascular tissue in active inflammatory lesions, and blood flow signals were seen in active CNV lesions. In the eyes of inactive inflammatory lesions and inactive CNV lesions, the fundus color photography showed that the lesions had clear boundaries without bleeding or exudation; FFA examination, the lesions were fluorescently stained, and there was no fluorescein leakage; OCT examination, inactive CNV lesions manifested as raised lesions with clear boundaries, and inactive inflammation manifested as scars formed by mild RPE hyperplasia or depressions in outer structures formed by atrophy; OCTA examination, inactive inflammatory lesions showed patchy loss of blood flow signal or penetrating blood flow signal below, blood flow signal can be seen in inactive CNV lesions.Conclusion:MFC active inflammatory lesions and active CNV lesions are often accompanied by retinal hemorrhage and exudation; FFA shows fluorescein leakage; OCT shows that the boundary of raised lesions is unclear; OCTA can identify the nature of CNV or inflammatory lesions.

16.
Article in Chinese | WPRIM | ID: wpr-933686

ABSTRACT

Objective:To explore the safety and efficacy of camrelizumab salvage therapy for extrahepatic recurrent hepatocellular carcinoma with PD-L1 negativity in transplanted liver tissue.Methods:From May 2020 to December 2020, retrospective analysis was performed for 3 cases of camrelizumab salvage therapy for extrahepatic recurrent hepatocellular carcinoma recipients with PD-L1 negative in transplanted liver tissue.Three recipients with extrahepatic recurrence progressed after first/second-line targeted drug therapy.Camrelizumab was given as salvage therapy after normal tissue of ransplanted liver was confirmed as negative for PD-L1 by immunohistochemistry.The safety and efficacy of treatment were observed by monitoring the changes in the levels of alanine aminotransferase, aspartate aminotransferase and bilirubin, the occurrence of complications and the outcome of treatment before and after dosing.Results:During a follow-up period of 1.5 to 15.5 months, no recipients showed acute rejection symptoms such as sharp elevations of transaminase and bilirubin.Headache ( n=1), vomiting ( n=1) and fatigue & hypertension ( n=1) became relieved after treatment.As of February 28, 2022, there were one survivor and two deaths.The fatal causes were tumor progression ( n=1) and thoracic aortic rupture due to esophageal perforation ( n=1). The survival time of recipients was (11-15.5) months and the progression-free survival time (4-6) months. Conclusions:For extrahepatic recurrent hepatocellular carcinoma with PD-L1-negative liver transplantation in normal liver tissue, camrelizumab salvage therapy can control tumor progression to a certain extent and prolong the survival time of recipients.

17.
Journal of Chinese Physician ; (12): 719-722, 2022.
Article in Chinese | WPRIM | ID: wpr-932127

ABSTRACT

Objective:To explore the application and effect of artificial intelligence technology in perinatal management of gestational diabetes mellitus.Methods:240 pregnant women with gestational diabetes diagnosed during 24-26 weeks of pregnancy in Changsha Maternal and Child Health Hospital were prospectively selected and randomly divided into control group (120 cases) and observation group (120 cases). The control group used the traditional management mode for nutritional management, and the observation group used AI technology for nutritional management. The weight gain, blood glucose control level, insulin use, pregnancy complications, pregnancy outcome and other indicators of the two groups were compared.Results:(1) Monitoring indicators during pregnancy: there was no significant difference in weight gain between the two groups ( P>0.05). The proportion of weight gain in the appropriate range in the observation group was significantly higher than that in the control group ( P<0.05); The prevalence of full-term anemia, insulin use rate and the incidence of blood glucose exceeding the control standard in the observation group were significantly higher than those in the control group (all P<0.05). (2) Pregnancy outcome: there was no significant difference in the incidence of gestational hypertension, cesarean section, fetal growth restriction, premature delivery and neonatal hypoglycemia between the two groups (all P>0.05); The incidence of conversion to cesarean section, macrosomia, neonatal blood glucose <2.6 mmol/L, mild asphyxia and admission to neurosurgical intensive care unit (NICU) in the observation group were significantly higher than those in the control group (all P<0.05). Conclusions:Application of AI technology to nutritional management of gestational diabetes can better control the maternal perinatal weight gain and blood glucose level, reduce the incidence of anemia in the third trimester of pregnancy, the incidence of macrosomia, the use of insulin and the rate of conversion to cesarean section, and improve the neonatal outcome.

18.
Article in Chinese | WPRIM | ID: wpr-931060

ABSTRACT

Objective:To observe the multimodal imaging characteristics of combined hamartoma of the retina and retinal pigment epithelium (CHRRPE).Methods:A cross-sectional study was conducted.Sixteen eyes of 16 patients with CHRRPE were enrolled in Second People's Hospital of Yunnan Province from March 2013 to July 2019.Fundus color photography, fundus autofluorescence (FAF), fluorescein fundus angiography (FFA), indocyanine green angiography (ICGA), optical coherence tomography (OCT), optical coherence tomography angiography (OCTA) and multicolor imaging were performed in all patients.The multimodal imaging characteristics were analyzed.This study protocol adhered to the Declaration of Helsinki and was approved by an Ethics Committee of Second People's Hospital of Yunnan Province (No.20130106). Written informed consent was obtained from patients or their guardians prior to any medical examination.Results:Tumors were located in the posterior optic disc, and translucent glial lesions with unclear borders and slight elevations were observed.The surface of the lesions was attached by different degrees of fibroproliferative membrane, and the adjacent vessels were twisted and dilated.The tumors presented flat bulging green reflexes on the retina at the posterior pole by multicolor imaging, and OCT image showed thickened optic disc and retina near the optic disc, structural disorder, high reflectance of the surface, and low reflectance of the deep retina below the periretinal membrane.OCTA showed irregular blood flow signals, and the signal of retinal blood vessels was twisted and dilated.FAF showed that the autofluorescence intensity of tumors was weakened to different degrees.Early lesions presented different degrees of blocked fluorescence in FFA.Deformed and tortuous blood vessels were found in the eyes, and telangiectasia showing needle-like punctate strong fluorescence leakage was observed in severe eyes by FFA.ICGA showed no abnormal choroidal vessels.Conclusions:The main imaging features of CHRRPE include abnormal retinal blood vessels in the tumor area and fibrous proliferative membranes on the surface in color image; OCT shows that the retina and the retinal pigment epithelium are involved, and the retina in the tumor is thickened with disordered structure; high reflection OCTA shows irregular internal blood flow signals inside the tumor; FFA examination shows fluorescence obscuration and obviously tortuous retinal blood vessels.Multimodal imaging examinations are helpful for the diagnosis of CHRRPE.

19.
Article in Chinese | WPRIM | ID: wpr-930297

ABSTRACT

Objective:To evaluate the value of circ_0000253 as a biomarker for (osteosarcoma, OS) diagnosis and prognosis.Methods:GEO database was used to screen the differentially expressed circRNAs in OS, microRNAs (miRNAs) with binding sites of circRNA were predicted to further construct the ceRNA network, and GO and KEGG analysis were used to screen the target genes. qRT-PCR was used to detect the expression of circ_0000253, miR-578 and TGF β2 in cancer and paracancerous tissue in OS patients, as well as OS cells and normal osteoblasts. The diagnostic value of circ_0000253 for OS and its impact on prognosis were analyzed, and the relationship between circ_0000253 expression level and clinicopathological parameters of patients was discussed. Further the expression of circ_0000253 and miR-578 in cells was intervened, apoptosis was detected by flow cytometry and cell proliferation was detected by MTT assay. Results:The expression of circ_0000253 in OS tissue was higher than that in paracancerous tissue ( t=11.17, P<0.001) . The expression of circ_0000253 was significantly correlated with Enneking stage, histopathology grade and distant metastasis (all P<0.05) . Circ_0000253 can be used as an effective diagnostic index of OS (AUC=0.84, P<0.001) and the prognosis of patients with high expression of circ_0000253 is poor. Circ_0000253 may regulate OS through miR-578/TGF β2 network. Knockdown of circ_0000253 reduced cell proliferation and induced apoptosis, which could be partially saved by miR-578 inhibitor (all P<0 05) . Conclusion:circ_0000253 may serve as a new biomarker for OS diagnosis and prognosis, which has a positive meaning for targeted therapy of OS.

20.
Article in Chinese | WPRIM | ID: wpr-928756

ABSTRACT

OBJECTIVE@#To analysis clinical phenotype and potential genetic cause of a family affected with hereditary coagulation factor Ⅻ deficiency.@*METHODS@#The prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen (FIB), D-Dimer (D-D), coagulation factor Ⅻ activity (FⅫ:C) and coagulation factor Ⅻ antigen (FⅫ:Ag) were determined for phenotype diagnosis of the proband and his family members(3 generations and 5 people). Targeted capture and whole exome sequencing were performed in peripheral blood sample of the proband. Possible disease-causing mutations of F12 gene were obtained and further confirmed by Sanger sequencing. The corresponding mutation sites of the family members were analyzed afterwards. The online bioinformatics software AutoPVS1 and Mutation Taster was used to predict the effects of mutation sites on protein function.@*RESULTS@#The APTT of the proband was significantly prolonged, reaching 180.9s. FⅫ:C and FⅫ:Ag of the proband was significantly reduced to 0.8% and 4.17%, respectively. The results of whole exome sequencing displayed that there were compound heterozygous mutations in F12 gene of the proband, including the c.1261G>T heterozygous nonsense mutation in exon 11 (causing p.Glu421*) and the c.251dupG heterozygous frameshift mutation in exon 4 (causing p.Trp85Metfs*53). Both mutations are loss of function mutations with very strong pathogenicity, leading to premature termination of the protein. AutoPVS1 and Mutation Taster software predicted both mutations as pathogenic mutations. The results of Sanger sequencing revealed that c.1261G>T heterozygous mutation of the proband was inherited from his mother, for which his brother and his daughter were c.1261G>T heterozygous carriers. Genotype-phenotype cosegregation was observed in this family.@*CONCLUSION@#The c.1261G>T heterozygous nonsense mutation in exon 11 and the c.251dupG heterozygous frameshift mutation in exon 4 of the F12 gene probably account for coagulation factor Ⅻ deficiency in this family. This study reports two novel pathogenic F12 mutations for the first time worldwide.


Subject(s)
Blood Coagulation Disorders , Codon, Nonsense , Factor XII/genetics , Female , Heterozygote , Humans , Male , Mutation , Pedigree
SELECTION OF CITATIONS
SEARCH DETAIL