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1.
Article in English | MEDLINE | ID: mdl-38032489

ABSTRACT

The goal of this study is to look into the pharmacological mechanism of Bruceae Fructus in conjunction with GEO, network pharmacology, and in vitro assays for the treatment of laryngeal cancer to provide theoretical support for its therapeutic use. The active components and matching targets of Bruceae Fructus were retrieved from the TCMSP database, while genes linked with laryngeal cancer were obtained from the GEO, GeneCards, DisGeNET, and DrugBank databases. Besides, the components and targets were supplemented by literatures in PubMed database. Cytoscape software was used to create the active ingredients-target network diagram. The String database was used to build the PPI network. Following that, the core targets were subjected to GO enrichment and KEGG pathway analysis using the DAVID database. Finally, AutoDock was used to perform molecular docking between the core components and the core targets. To investigate the biological effects of beta-sitosterol, the viability of laryngeal cancer cells was assessed after beta-sitosterol therapy using the MTS technique. Following that, how beta-sitosterol affected colony formation after 14 days of culture of treated cells was researched. Flow cytometry was utilized to detect apoptosis to examine the influence of beta-sitosterol on laryngeal cancer cell apoptosis, and then detected mRNA and protein expression levels of 10 key genes by RT-qPCR and Western Blot assay. There were 1258 laryngeal cancer-related genes and 15 Bruceae Fructus components, with beta-sitosterol and luteolin serving as key components. Bruceae Fructus' primary targets against laryngeal cancer were IL6, JUN, TNF, IL2, IL4, IFNG, RELA, TP53, CDKN1A, and AKT1. GO enrichment yielded 41 CC, 78 MF, and 383 BP. Platinum drug resistance, the PI3K-Akt signaling pathway, the p53 signaling pathway, apoptosis, the HIF-1 signaling pathway, and 147 additional pathways have been added to KEGG. The results of molecular docking revealed that the core components had a high affinity for the core target. The results of the cell experiment indicate that beta-sitosterol suppressed Hep-2 cell activity in a concentration-dependent manner. Besides, beta-sitosterol has powerful antiproliferative properties in Hep-2 cells. Flow cytometry results showed that beta-sitosterol promoted laryngeal cancer cell apoptosis in a concentration-dependent manner. The results of RT-qPCR and Western Blot assay showed that the mRNA and protein expression levels of TP53, JUN, TNF-α, CDKN1A, and IL-2 were significantly up-regulated after beta-sitosterol treatment, while the mRNA and protein expression levels of RELA, AKT1, IL-6, IFNG, and IL-4 were significantly down-regulated. This study integrating GEO, network pharmacology, and in vitro assays investigated the probable mechanism of Bruceae Fructus' anti-laryngeal cancer activity, which can give a theoretical foundation for additional future animal experiments.

2.
Front Neurosci ; 17: 1011283, 2023.
Article in English | MEDLINE | ID: mdl-37034164

ABSTRACT

Aims: Temporal lobe epilepsy (TLE) is a common neurological disorder associated with the dysfunction of the default mode network (DMN). Metabolic connectivity measured by 18F-fluorodeoxyglucose Positron Emission Computed Tomography (18F-FDG PET) has been widely used to assess cumulative energy consumption and provide valuable insights into the pathophysiology of TLE. However, the metabolic connectivity mechanism of DMN in TLE is far from fully elucidated. The present study investigated the metabolic connectivity mechanism of DMN in TLE using 18F-FDG PET. Method: Participants included 40 TLE patients and 41 health controls (HC) who were age- and gender-matched. A weighted undirected metabolic network of each group was constructed based on 14 primary volumes of interest (VOIs) in the DMN, in which Pearson's correlation coefficients between each pair-wise of the VOIs were calculated in an inter-subject manner. Graph theoretic analysis was then performed to analyze both global (global efficiency and the characteristic path length) and regional (nodal efficiency and degree centrality) network properties. Results: Metabolic connectivity in DMN showed that regionally networks changed in the TLE group, including bilateral posterior cingulate gyrus, right inferior parietal gyrus, right angular gyrus, and left precuneus. Besides, significantly decreased (P < 0.05, FDR corrected) metabolic connections of DMN in the TLE group were revealed, containing bilateral hippocampus, bilateral posterior cingulate gyrus, bilateral angular gyrus, right medial of superior frontal gyrus, and left inferior parietal gyrus. Conclusion: Taken together, the present study demonstrated the abnormal metabolic connectivity in DMN of TLE, which might provide further insights into the understanding the dysfunction mechanism and promote the treatment for TLE patients.

3.
Article in English | MEDLINE | ID: mdl-36231741

ABSTRACT

Urban production energy consumption produces a large amount of carbon emissions, which is an important source of global warming. This study measures the quantity and intensity of carbon emissions in 30 provinces of China based on urban production energy consumption from 2005-2019, and uses the Dagum Gini coefficient, kernel density estimation, carbon emission classification and spatial econometric model to analyze the spatial and temporal distribution and driving factors of quantity and intensity of carbon emissions from China and regional production energy consumption. It was found that the growth rate of carbon emission quantity and carbon emission intensity of production energy consumption decreased year by year in each province during the study period. The imbalance of carbon emission was strong, with different degrees of increase and decrease, and there were big differences between eastern and western regions. The classification of carbon emissions differed among provinces and there was heterogeneity among regions. The quantity and intensity of carbon emissions of production energy consumption qwre affected by multiple factors, such as industrial structure. This study provides an in-depth comparison of the spatial and temporal distribution and driving factors of quantity and intensity of carbon emissions of production energy consumption across the country and regions, and provides targeted policies for carbon emission reduction across the country and regions, so as to help achieve China's "double carbon" target quickly and effectively.


Subject(s)
Carbon Dioxide , Carbon , Carbon/analysis , Carbon Dioxide/analysis , China , Economic Development , Global Warming , Industry
4.
Nanoscale ; 14(17): 6305-6311, 2022 May 05.
Article in English | MEDLINE | ID: mdl-35420117

ABSTRACT

Modulation of excited-state processes in binary organic cocrystals has been rarely explored so far. Here, we develop two charge-transfer (CT) cocrystal microrods with a 1 : 1 stoichiometric ratio where halogenated dibenzothiophene (DBT) compounds act as π-electron donors and 1,2,4,5-tetracyanobenzene (TCNB) acts as an acceptor. Unexpectedly, the cocrystal containing one bromine (Br) atom at the 3-position of DBT (3-BrTC) presents thermally activated delayed fluorescence (TADF), while the other one comprising one Br atom at the 4-position of DBT (4-BrTC) exhibits both TADF and room-temperature phosphorescence (RTP). Experimental and theoretical calculation results reveal that CT interactions in 3- and 4-BrTC decrease the S1-T2 energy gap, whereas abundant lone-pair electrons from the Br atom in 4-BrTC facilitate the n → π* transition. As a consequence, single TADF and dual-emissive TADF/RTP were realized, respectively. The present work offers wonderful insight into the effect of molecular structures on the excited-state pathways of organic CT cocrystals.

5.
Clin Interv Aging ; 16: 1801-1812, 2021.
Article in English | MEDLINE | ID: mdl-34675495

ABSTRACT

PURPOSE: To determine whether combined performance-based models could exert better predictive values toward discriminating community-dwelling elderly with high risk of any-falls or recurrent-falls. PARTICIPANTS AND METHODS: This prospective cohort study included a total of 875 elderly participants (mean age: 67.10±5.94 years) with 513 females and 362 males, recruited from Hangu suburb area of Tianjin, China. All participants completed comprehensive assessments. METHODS: We documented information about sociodemographic information, behavioral characteristics and medical conditions. Three functional tests-timed up and go test (TUGT), walking speed (WS), and grip strength (GS) were used to create combined models. New onsets of any-falls and recurrent-falls were ascertained at one-year follow-up appointment. RESULTS: In total 200 individuals experienced falls over a one-year period, in which 66 individuals belonged to the recurrent-falls group (33%). According to the receiver operating characteristic curve (ROC), the cutoff points of TUGT, WS, and GS toward recurrent-falls were 10.31 s, 0.9467 m/s and 0.3742 kg/kg respectively. We evaluated good performance as "+" while poor performance as "-". After multivariate adjustment, we found "TUGT >10.31 s" showed a strong correlation with both any-falls (adjusted odds ratio (OR)=2.025; 95% confidence interval (CI)=1.425-2.877) and recurrent-falls (adjusted OR=2.150; 95%CI=1.169-3.954). Among combined functional models, "TUGT >10.31 s, GS <0.3742 kg/kg, WS >0.9467 m/s" showed strongest correlation with both any-falls (adjusted OR=5.499; 95%CI=2.982-10.140) and recurrent-falls (adjusted OR=8.260; 95%CI=3.880-17.585). And this combined functional model significantly increased discriminating abilities on screening recurrent-fallers than a single test (C-statistics=0.815, 95%CI=0.782-0.884, P<0.001), while not better than a single test in predicting any-fallers (P=0.083). CONCLUSION: Elderly people with poor TUGT performance, weaker GS but quicker WS need to be given high priority toward fall prevention strategies for higher risks and frequencies. Meanwhile, the combined "TUGT-, GS-, WS+" model presents increased discriminating ability and could be used as a conventional tool to discriminate recurrent-fallers in clinical practice.


Subject(s)
Independent Living , Walking Speed , Aged , China , Female , Hand Strength , Humans , Male , Postural Balance , Prospective Studies , Time and Motion Studies
6.
Angew Chem Int Ed Engl ; 60(33): 18059-18064, 2021 Aug 09.
Article in English | MEDLINE | ID: mdl-34075684

ABSTRACT

Control of excited-state dynamics is key in tuning room-temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) emissions but is challenging for organic luminescent materials (OLMs). We show the regulation of TADF and RTP emissions of a boron difluoride ß-acetylnaphthalene chelate (ßCBF2 ) by controlling the excited-state dynamics via its J- and H-aggregation states. Two crystalline polymorphs emitting green and red light have been controllably obtained. Although both monoclinic, the green and red crystals are dominated by J- and H-aggregation, respectively, owing to different molecular packing arrangements. J-aggregation significantly reduces the energy gap between the lowest singlet and triplet excited states for ultra-fast reverse intersystem crossing (RISC) and enhances the radiative singlet decay, together leading to TADF. The H-aggregation accelerates the ISC and suppresses the radiative singlet decay, helping to stabilize the triplet exciton for RTP.

7.
J Am Chem Soc ; 143(15): 5691-5697, 2021 04 21.
Article in English | MEDLINE | ID: mdl-33843229

ABSTRACT

Singlet fission (SF), the conversion of one high-energy singlet to two low-energy triplets, provides the potential to increase the efficiency of photovoltaic devices. In the SF chromophores with C2h symmetry, exemplified by polyenes, singlet-to-triplet conversion generally involves a low-lying 21Ag dark state, which serves as either a multiexciton (ME) intermediate to promote the SF process or a parasitic trap state to shunt excited-state populations via internal conversion. This controversial behavior calls for a deep understanding of dark-state-related photophysics involving the higher-lying singlet state. However, the optical "dark" and "transient" nature of these dark states and strong correlation feature of double exciton species make their characterization and interpretation challenging from both experimental and computational perspectives. In the present work combining transient spectroscopy and multireference electronic structure calculations (XDW-CASPT2), we addressed a new photophysical model, i.e., a high-lying 31Ag dark-state-mediated ultrafast SF process in the benzodipyrrolidone (BDPP) skeleton. Such a 31Ag dark state with distinctive double excitation character, described as the ME state, could be populated from the initial 11Bu bright state on an ultrafast time scale given the quasi-degeneracy and intersection of the two electronic states. Furthermore, the suitable optical band gap and triplet energy, high triplet yield, and excellent photostability render BDPP a promising SF candidate for photovoltaic devices. These results not only enrich the arsenal of SF materials but also shed new insights into the understanding of dark-state-related photophysics, which could promote the development of new SF-active materials.

8.
Nano Lett ; 21(7): 3287-3294, 2021 Apr 14.
Article in English | MEDLINE | ID: mdl-33724847

ABSTRACT

Thermally activated delayed fluorescent (TADF) emitters have received great attention in organic light-emitting diodes and laser diodes because of high exciton utilization efficiency and low optical loss caused by triplets. However, the direct observation of lasing emission from nondoped TADF microcrystals has yet to be reported. Here, we demonstrated a three-color (green, yellow, and red) microlaser from three nondoped TADF microcrystals with well-controlled geometries. The temperature-dependent dynamic analyses testify that the regenerated singlets which originated from the reverse intersystem crossing process at room temperature are beneficial for population inversion and reduce triplet-absorption/annihilation optical loses, together resulting in thermally activated lasing actions. Thanks to single-crystalline structures of TADF emitters, the relationship between triplet-harvesting capability and the molecular structure was systematically investigated. The results not only offer rational design of pure TADF gain materials but also provide guidance for the high-performance electrically driven organic solid-state lasers and multicolor laser integration.

9.
Ecotoxicol Environ Saf ; 205: 111283, 2020 Dec 01.
Article in English | MEDLINE | ID: mdl-32977282

ABSTRACT

Fine particulate matter (PM2.5) airborne pollution increases the risk of chronic respiratory diseases, such as idiopathic pulmonary fibrosis (IPF), which is characterized by non-specific inflammation of the interstitial lung and extensive deposition of collagen fibers. Type 2 alveolar epithelial cells (AEC2s) are alveolar stem cells in the adult lung that contribute to the lung repair process through complex signaling. Our previous studies demonstrated that OGG1, a kind of DNA repair enzyme, have a critical role in protecting cells from oxidative damage and apoptosis induced by PM2.5, but the contribution of OGG1 in proliferation and self-renewal of AEC2s is not known. Here, we constructed OGG1-/-mice to test the effect and mechanism of OGG1 on PM2.5-induced pulmonary fibrosis and injury in vivo. We detected proliferation and self-renewal of OGG1 overexpression or OGG1 knockout AEC2s after PM2.5 injury by flow cytometry and clone formation. We observed that knockout of OGG1 aggravated pulmonary fibrosis, oxidative stress, and AEC2 cell death in PM2.5-injured mice. In addition, OGG1 is required for the proliferation and renewal of AEC2s after PM2.5 injury. Overexpression of OGG1 promotes the proliferation and self-renewal of AEC2s by inhibiting PM2.5-mediated oxidative stress and NF-κB signaling hyperactivation in vitro. Furthermore, NF-κB inhibitors promoted proliferation and self-renewal of OGG1-deficient AEC2s cells after PM2.5 injury, and attenuated PM2.5-induced pulmonary fibrosis and injury in mice. These data establish OGG1 as a regulator of NF-κB signal that serves to regulate AEC2 cell proliferation and self-renewal, and suggest a mechanism that inhibition of the NF-κB signaling pathway may represent a potential therapeutic strategy for IPF patients with low-expression of OGG1.


Subject(s)
Air Pollutants/toxicity , Alveolar Epithelial Cells/drug effects , Cell Self Renewal/genetics , DNA Glycosylases/metabolism , Particulate Matter/toxicity , Pulmonary Fibrosis/chemically induced , Stem Cells/drug effects , Alveolar Epithelial Cells/metabolism , Alveolar Epithelial Cells/pathology , Animals , Apoptosis/drug effects , Apoptosis/genetics , Cell Proliferation/drug effects , Cell Proliferation/genetics , DNA Glycosylases/genetics , Humans , Lung/drug effects , Lung/metabolism , Lung/pathology , Mice , Mice, Inbred C57BL , Mice, Knockout , NF-kappa B/metabolism , Oxidative Stress/drug effects , Oxidative Stress/genetics , Pulmonary Fibrosis/genetics , Pulmonary Fibrosis/pathology , Signal Transduction , Stem Cells/metabolism , Stem Cells/pathology
10.
J Phys Chem Lett ; 11(19): 8246-8251, 2020 Oct 01.
Article in English | MEDLINE | ID: mdl-32915577

ABSTRACT

Organic room-temperature phosphorescence (ORTP) has been demonstrated successfully in solids. In contrast, solution-phase ORTP is rarely achieved, because the T1 → S0 phosphorescence is too slow to compete against nonradiative decay and the oxygen-quenching effect. Here, we reported that suppression of Kasha's rule is a strategy to achieve solution-phase ORTP from the high-lying T2 state by spatially separating T2 and T1 on different parts of the molecule (CzCbDBT) composed of carbonyl (Cb), dibenzothiophene (DBT), and carbazole moiety (Cz). On one hand, intersystem crossing (ISC) is much faster from S1 to T2 than that to T1, owing to the small energy-gap ΔES1-T2 and large spin-orbital coupling ξS1-T2. On the other hand, T2 → T1 internal conversion is inhibited owing to spatial separation, i.e., T2 on CbDBT and T1 on Cz, respectively. Also, combination of very fast radiative decay from T2 to S0 owing to large ξT2-S0, the efficient solution-phase ORTP emission from the T2 state was finally achieved.

11.
Zhongguo Zhong Yao Za Zhi ; 45(15): 3719-3725, 2020 Aug.
Article in Chinese | MEDLINE | ID: mdl-32893564

ABSTRACT

The aim of this paper was to investigate the effect of Schizonepetae Herba and Saposhnikoviae Radix(wind medicine) on the expression of AQP4 and AQP8 in colonic mucosa in rats with ulcerative colitis(UC). A total of 35 healthy SD male rats were randomly divided into normal group(gavaged with normal saline), DSS model group, as well as low, middle, and high dose wind medicine groups(Schizonepeta and Saposhnikovia 1∶1, gavaged at dosages of 6, 12, and 24 g·kg~(-1)·d~(-1)), with 7 in each group. UC rat model was established by free drinking of 3% dextran sulphate sodium(DSS) solution for 10 days. At the end of the 10 th day after the treatment, mice were put to death to collect colonic mucosa. The length of colon was measured; the colonic mucosal injury index(CMDI) and pathological changes of colon were observed. ELISA method was used for measuring the content of serum IL-1, IL-8, and immunohistochemical method was used to measure AQP4, AQP8 protein expressions in colon mucosa. The expressions of AQP4, AQP8 mRNA were measured by Real-time PCR. As compared with the normal group, the length of colon tissue was significantly reduced(P<0.01), CMDI scores and pathological scores were significantly increased(P<0.01), the levels of serum IL-1 and IL-8 were significantly increased(P<0.05) in model group; the immunohistochemical results showed that the protein expressions of AQP4, AQP8 were lower; the color was light yellow or brown; AQP4, AQP8 mRNA expressions in colon mucosa were significantly decreased in model group(P<0.01). CMDI scores, pathological scores, and the levels of serum IL-1, IL-8 in high, middle, low dose wind medicine groups were obvious lower than those in the model group(P<0.01 or P<0.05); the protein expressions of AQP4, AQP8 were higher; the color was chocolate brown or dark brown; the length of colon tissue, and the expressions of AQP4, AQP8 mRNA were obvious higher in wind medicine groups(P<0.01 or P<0.05). Schizonepetae Herba and Saposhnikoviae Radix could significantly improve the symptoms and histopathology of UC model rats and accelerate the intestinal mucosal healing. The mechanism may be related with up-regulating the expression level of AQP4 and AQP8 in colonic mucosa.


Subject(s)
Apiaceae , Colitis, Ulcerative , Animals , Aquaporin 4 , Colon , Intestinal Mucosa , Male , Mice , Plant Roots , Rats
12.
J Int Med Res ; 48(8): 300060520943450, 2020 Aug.
Article in English | MEDLINE | ID: mdl-32777962

ABSTRACT

OBJECTIVE: Osteoporosis can lead to bone fragility and an increased risk of bone fracture with resultant high morbidity and mortality. Living alone has been associated with various mental and physical health problems. However, the risk of osteoporosis among individuals with different living conditions and changing living conditions is unclear. We examined the risk of osteoporosis in different living conditions over a 3-year period in community-dwelling suburban elderly Chinese. METHODS: This study involved 288 elderly Chinese suburb-dwelling participants with no documented history of osteoporosis. All were aged ≥60 years (mean, 65.6±3.75 years; 157 men). A quantitative ultrasound scan of the calcaneus with a T score of <-2.5 was used to identify a high risk of osteoporosis. RESULTS: In total, 54.2% of participants were determined to have a high risk of osteoporosis (male, 51.6%; female, 57.3%). People who had always lived alone had a significantly higher risk of osteoporosis, even after adjusting for potential confounders. A change from living alone to living with others had no significant impact on the risk of osteoporosis. CONCLUSION: Our results indicate that living alone is associated with a high risk of osteoporosis. Thus, people who live alone may need regular bone tests to avoid adverse events.


Subject(s)
Independent Living , Osteoporosis , Aged , Bone Density , China/epidemiology , Cohort Studies , Female , Humans , Male , Osteoporosis/epidemiology , Risk Factors , Social Conditions
13.
Rejuvenation Res ; 23(6): 498-507, 2020 Dec.
Article in English | MEDLINE | ID: mdl-32303149

ABSTRACT

This study aims to explore the single and joint effects of depression and malnutrition on the incidence of first fall onset in a Chinese community-dwelling elderly population. This cohort study consisted of 739 residents without a history of falls who were aged 60 years and older (mean age: 67.08 ± 5.79 years, female: 58.2%). Depression was defined with the Geriatric Depression Scale (GDS)-30; a score of ≥11 was considered to be depressed, while malnutrition was defined with the Mini Nutritional Assessment where a score <17 was defined as malnourished. Over a 2-year follow-up period, older adults who experienced at least one fall were allocated to the first fall onset group. The prevalence of baseline falls was 21.36%. During the 2-year follow-up, incidence of first fall onset was 13.13%. After adjusting for all confounders, depression alone (adjusted odds ratio [OR] = 3.545, 95% confidence interval [CI] = 1.318-9.535) and malnutrition alone (adjusted OR = 2.204, 95% CI = 1.183-4.108) were observed to be independent risk factors for first fall onset, while comorbidity of depression and malnutrition showed progressively increased risk of promoting first fall (adjusted OR = 8.161, 95% CI = 3.591-18.545) than those with only depression or malnutrition or without both depression and malnutrition. Malnutrition mediated 56% effects in the association between depression and first fall onset, while depression mediated 76% effects in the promoting role of malnutrition in first fall. Depression and malnutrition were found to be independent causes for promoting first fall, while mental health and nutrition should be treated as commonly prior interventions to delay first fall onset. Meanwhile, for malnourished Chinese community-dwelling older adults, avoidance or treatment of depression should be addressed at first.


Subject(s)
Accidental Falls/statistics & numerical data , Depression/epidemiology , Independent Living , Malnutrition/epidemiology , Aged , China/epidemiology , Female , Geriatric Assessment , Humans , Male , Prospective Studies , Risk Factors
14.
Arch Gerontol Geriatr ; 87: 104010, 2020.
Article in English | MEDLINE | ID: mdl-31951897

ABSTRACT

PURPOSE: Currently there is no consensus on the correlation between metabolic syndrome (MetS) and muscle strength. The objective of this study was to examine the associations between MetS and its components and different handgrip strength (HS) indexes among Chinese community-dwelling elderly individuals. In addition, we hoped to find an optimal cutoff point for the index most relevant to MetS. METHODS: Data were obtained from 909 participants aged ≥ 60 years (385 men, average age, 68.0 ± 5.9 y). We used the International Diabetes Federation metabolic syndrome guidelines to define MetS. General data of all participants were collected through questionnaires and anthropometric data were measured. At the same time, blood samples were collected. RESULTS: The prevalence of MetS was 26.8 % in men and 46.9 % in women. In all HS indexes, HS/body fat mass was most strongly correlated with MetS, and the areas under the receiver-operating characteristic curve were 0.723 (95 % confidence interval [CI] = 0.669-0.776) in men and 0.619 (95 % CI = 0.571-0.667) in women, and the optimal cutoffs were 1.92 in men and 1.25 in women. The adjusted odds ratios (ORs) of MetS for low HS/body fat mass were 5.38 (95 % CI = 3.03-9.56, p < 0.001) in men and 2.39 (95 % CI = 1.56-3.64, p < 0.001) in women. CONCLUSIONS: HS/body fat mass appears to be the index best associated with MetS and its components, and in men it is more relevant than in women.


Subject(s)
Hand Strength , Independent Living , Metabolic Syndrome/physiopathology , Aged , Aged, 80 and over , Body Mass Index , Cross-Sectional Studies , Female , Humans , Male , Metabolic Syndrome/epidemiology , Middle Aged
15.
BMC Dev Biol ; 19(1): 23, 2019 12 02.
Article in English | MEDLINE | ID: mdl-31787077

ABSTRACT

BACKGROUND: Epigenetic regulation of oocyte-specific maternal factors is essential for oocyte and early embryonic development. KPNA7 is an oocyte-specific maternal factor, which controls transportation of nuclear proteins important for early embryonic development. To elucidate the epigenetic mechanisms involved in the controlled expression of KPNA7, both DNA methylation associated transcriptional silencing and microRNA (miRNA)-mediated mRNA degradation of KPNA7 were examined. RESULTS: Comparison of DNA methylation profiles at the proximal promoter of KPNA7 gene between oocyte and 6 different somatic tissues identified 3 oocyte-specific differentially methylated CpG sites. Expression of KPNA7 mRNA was reintroduced in bovine kidney-derived CCL2 cells after treatment with the methylation inhibitor, 5-aza-2'-deoxycytidine (5-Aza-CdR). Analysis of the promoter region of KPNA7 gene in CCL2 cells treated with 5-Aza-CdR showed a lighter methylation rate in all the CpG sites. Bioinformatic analysis predicted 4 miRNA-1296 binding sites in the coding region of KPNA7 mRNA. Ectopic co-expression of miRNA-1296 and KPNA7 in HEK293 cells led to reduced expression of KPNA7 protein. Quantitative real time PCR (RT-qPCR) analysis revealed that miRNA-1296 is expressed in oocytes and early stage embryos, and the expression reaches a peak level in 8-cell stage embryos, coincident with the time of embryonic genome activation and the start of declining of KPNA7 expression. CONCLUSIONS: These results suggest that DNA methylation may account for oocyte-specific expression of KPNA7, and miRNA-1296 targeting the coding region of KPNA7 is a potential mechanism for KPNA7 transcript degradation during the maternal-to-zygotic transition.


Subject(s)
DNA Methylation , MicroRNAs/genetics , Oocytes/growth & development , alpha Karyopherins/genetics , Animals , Binding Sites , Cattle , Cell Line , Embryonic Development , Epigenesis, Genetic , Female , Gene Expression Regulation, Developmental , HEK293 Cells , Humans , Oocytes/chemistry , Organ Specificity , Promoter Regions, Genetic , RNA Stability , RNA, Messenger/chemistry , alpha Karyopherins/chemistry
16.
BMC Cardiovasc Disord ; 19(1): 266, 2019 11 27.
Article in English | MEDLINE | ID: mdl-31775633

ABSTRACT

BACKGROUND: Although perioperative care during heart surgery has improved considerably, the rate of postoperative complications has remained stable. It has not been concluded how to better apply grip strength to clinical, postoperative complications. So our study aimed at researching the best way for using grip value for predicting early postoperative complications. METHODS: A total of 212 patients with mean age 63.8 ± 6.3 who underwent cardiac surgery participated in our study. We analyzed the ROC curve of grip strength, grip/weight and grip recovery with complications, found the best cutoff point. Logistic regression confirmed the association between grip strength grouping and complications. RESULTS: We found that 36 patients had 30-day complications. EuroSCORE were 2.15 ± 1.52 and 2.42 ± 1.58 between normal and complication groups, respectively. The area under the receiver-operating characteristic curve (AUC) of grip recovery take the most area (0.837, p < 0.001), and the cutoff point was 83.92%. In logistic regression, lower grip recovery has higher risk impact on 30-day complications for 25.68 times than normal group, after adjusted surgery-related factors. After regrouped characteristic information by grip recovery cutoff point, we found that percentage of the estimated 6 min walk distance (41.5 vs 48.3, p = 0.028) and hospitalization time (7.2 vs 6.1, p = 0.042) had worse trends in lower recovery group. CONCLUSIONS: Poor grip recovery may be related to higher risk of postoperative complications within 30 days after discharge in middle-aged and older people independent of surgical risk. The results of this study provide a reference for the development of rehabilitation programs in the early postoperative recovery, and may also be a prognostic indicator for postoperative high-risk groups. TRIAL REGISTRATION: Our research was registered on Research Registry website, the registry number was ChiCTR1800018465. Date: 2018/9/20. Status: Successful.


Subject(s)
Cardiac Surgical Procedures/adverse effects , Hand Strength , Patient Discharge , Postoperative Complications/etiology , Age Factors , Aged , Female , Health Status , Humans , Male , Middle Aged , Perioperative Period , Pilot Projects , Postoperative Complications/diagnosis , Postoperative Complications/physiopathology , Prospective Studies , Recovery of Function , Risk Assessment , Risk Factors , Time Factors , Treatment Outcome
17.
World J Clin Cases ; 7(4): 489-493, 2019 Feb 26.
Article in English | MEDLINE | ID: mdl-30842960

ABSTRACT

BACKGROUND: Cavernous hemangiomatosis in the liver and spleen has been reported, but it occurs less commonly in the peritoneum. Here we report a case of peritoneal cavernous hemangiomatosis and share some valuable information about this disease. CASE SUMMARY: A 57-year-old Chinese man had a huge abdominal mass with abdominal distention and a significant reduction of food consumption. An enhanced abdominal and pelvic computed tomography and positron emission tomography-computed tomography revealed multiple cystic masses on the peritoneum, greater omentum, small intestinal mesentery and the surface of the spleen, and a high maximum standardized uptake value of the largest cystic lesion. Exploratory laparotomy was performed, and multiple cystic masses were found on the surface of the peritoneum, greater omentum, mesentery of the small intestine, and surface of the liver and spleen. Dark red bloody cystic fluid was present in the cystic tumor. Pathological examination showed that in the stromal components, the irregular vascular wall was thin. The vessel lumen was interlinked, and the lumen was lined with flat endothelium. According to the intraoperative findings and pathologic results, the patient was diagnosed with peritoneal cavernous hemangiomatosis. CONCLUSION: The possibility of peritoneal cavernous hemangiomatosis should be considered when multiple cystic masses are found in the abdominal cavity by preoperative examination.

18.
J Diabetes ; 11(2): 107-114, 2019 Feb.
Article in English | MEDLINE | ID: mdl-29943517

ABSTRACT

BACKGROUND: The aim of the present study was to examine the risk factors for developing diabetes after 3 years in an elderly Chinese suburban population with impaired fasting glucose (IFG). METHODS: The study population comprised residents of the Hangu area of Tianjin, China, with IFG, aged ≥60 years, who joined the national free physical examination program (n = 328; mean [±SD] age 68.0 ±6.1 years; 48.2% men). Diabetes was defined by self-report of a physician's diagnosis or fasting plasma glucose (FPG) ≥7.0 mmol/L; IFG was defined as FPG ≥5.6 and < 7.0 mmol/L. Risk factors of incident diabetes at the 3-year follow-up were analyzed individually using logistic regression analysis. RESULTS: Between baseline and the 3-year follow-up, 56 subjects with IFG at baseline had developed diabetes. After multivariate adjustment for demographic and clinical factors, the incidence of diabetes increased with higher FPG (odds ratio [OR] 9.30, 95% confidence interval [CI] 2.84-30.48), but decreased with the grip strength/weight ratio (OR 0.88, 95% CI 0.82-0.94). Moreover, the combination of higher FPG and lower grip strength/weight was associated with a higher incidence of diabetes than higher FPG only or lower grip strength/weight (P < 0.05). CONCLUSION: The present study indicates that higher FPG and lower muscle strength are associated with glycemic deterioration among subjects with IFG after 3 years. The results suggest that not only glucose levels, but also physical performance may be useful markers of the risk of diabetes in this population.


Subject(s)
Blood Glucose/metabolism , Diabetes Mellitus/blood , Independent Living , Prediabetic State/blood , Aged , Asian People/statistics & numerical data , China/epidemiology , Diabetes Mellitus/epidemiology , Diabetes Mellitus/ethnology , Fasting/blood , Glucose Intolerance/blood , Glucose Intolerance/ethnology , Humans , Incidence , Logistic Models , Male , Prediabetic State/epidemiology , Prediabetic State/ethnology , Risk Assessment/methods , Risk Assessment/statistics & numerical data , Risk Factors
19.
Zhongguo Zhong Yao Za Zhi ; 44(24): 5465-5472, 2019 Dec.
Article in Chinese | MEDLINE | ID: mdl-32237396

ABSTRACT

The aim of this paper was to screen the active targets of Schizonepetae Herba and Saposhnikoviae Radix in the treatment of ulcerative colitis by means of network pharmacology,and to investigate their mechanism of action. The effective components of Schizonepetae Herba and Saposhnikoviae Radix were screened out by traditional Chinese medicine systematic pharmacological( TCMSP)database,with oral bioavilability( OB) ≥30% and drug-like( DL) ≥18% selected as the thresholds. Target PPI network was built between the main components and their corresponding targets. One hundred and eighty-two human genes corresponding to the medicine target sites were obtained from Uniprot database; 3 874 genes corresponding to ulcerative colitis were obtained from Genecard database.A total of 115 intersection genes were screened from disease genes and medicine genes,and the PPI interaction analysis was conducted by using String tool. Disease-target PPI network was drawn by using Cytoscape software,and component-target-disease network was constructed. One hundred and eight nodes and 1 882 connections were found,and then Cytoscape software was used to merge the networks and filter the core network for gene GO function analysis and KEGG pathway enrichment analysis. The mechanism of Schizonepetae Herba and Saposhnikoviae Radix was then verified by animal experiment. Gene GO functional analysis suggested that biological process,molecular functions and cell components were involved,and it was found that ulcerative colitis might be related to transcription factor activity,and cytokine receptor binding,etc. Gene KEGG pathway enrichment analysis showed that the mechanism of ulcerative colitis might be associated with TNF and Toll-like receptors( TLRs) signaling pathway-mediated cytoinflammatory factors interleukin-1( IL-1) and interleukin-6( IL6). The possible mechanism of the effective components of Schizonepetae Herba and Saposhnikoviae Radix in treating ulcerative colitis might be related to intervening the cytokine receptor binding of TNF and TLRs signaling pathways,reducing the transcription of nuclear factor-kappaB( NF-κB),and inhibiting the secretion of intestinal inflammatory factors IL-1 and IL-6.


Subject(s)
Colitis, Ulcerative/drug therapy , Drugs, Chinese Herbal/therapeutic use , Protein Interaction Mapping , Animals , Apiaceae/chemistry , Databases, Genetic , Humans , Interleukins/metabolism , Lamiaceae/chemistry , Medicine, Chinese Traditional , Phytotherapy , Plant Roots/chemistry , Signal Transduction , Software , Toll-Like Receptors/metabolism
20.
J Am Med Dir Assoc ; 20(1): 64-69, 2019 01.
Article in English | MEDLINE | ID: mdl-30268631

ABSTRACT

OBJECTIVE: The objective of this study was to examine the incidence of new onset depressive symptoms and associated factors over a 1-year period in an older Chinese suburban population. DESIGN: Prospective cohort study. SETTING AND PARTICIPANTS: The sample comprised 691 Chinese community-dwelling participants (304 men; mean age 67.5 ± 5.7 years) without depressive symptoms at baseline, recruited from Chadian of Tianjin, China. MEASURES: We had documented detailed information regarding sociodemographics, behavioral characteristics, and medical conditions. Sarcopenia was defined according to the Asian Working Group for Sarcopenia (AWGS) criteria. The outcome was new onset depressive symptoms at 1-year follow-up, defined as a score of ≥11 on the 30-item Geriatric Depression Scale. RESULTS: We found that 83 (12.0%) of the 691 participants without depressive symptoms at baseline had developed depressive symptoms. After multivariate adjustments, it was found that the incidence of new onset depressive symptoms was associated with sarcopenia, type 2 diabetes mellitus, and cardiovascular disease. People with a higher level of muscle mass and better sleep quality were significantly less likely to develop depressive symptoms than their counterparts. CONCLUSIONS/IMPLICATIONS: We found that the incidence of depressive symptoms increased with some chronic diseases, such as sarcopenia, type 2 diabetes mellitus, and cardiovascular disease. In addition, muscle mass was the most related protective factor among sarcopenia's 3 basic diagnosis components-muscle mass, muscle strength, and physical performance. Hence, maintaining enough muscle mass could be beneficial in the prevention of depressive symptoms for older adults.


Subject(s)
Depression/epidemiology , Sarcopenia/psychology , Aged , China/epidemiology , Female , Geriatric Assessment , Humans , Incidence , Independent Living , Male , Middle Aged
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