Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 824
Filtrar
1.
Pharmacol Res ; 208: 107388, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39243915

RESUMO

Scientific risk assessment of exogenous and endogenous toxic substances in traditional Chinese medicine (TCM) is of great significance. The present review comprises a comprehensive summary of progress in the health risk assessment of harmful exogenous substances in TCMs. Such substances include heavy metals, pesticide residues, biotoxins, and endogenous toxic components involving pyrrolizidine alkaloids. The review also discusses the strengths and weaknesses of various bioaccessibility and bioavailability models, and their applications in risk assessment. Future avenues of risk assessment research are highlighted, including further exploration of risk assessment parameters, innovation of bioaccessibility and bioavailability techniques, enhancement of probabilistic risk assessment combined with bioavailability, improvement of cumulative risk assessment strategies, and formulation of strategies for reducing relative bioavailability (RBA) values in TCMs. Such efforts represent an attempt to develop a risk assessment system that is capable of evaluating the exogenous and endogenous toxic substances in TCMs to ensure its safe use in clinics, and to promote the sustainable development of the TCM industry.


Assuntos
Disponibilidade Biológica , Medicamentos de Ervas Chinesas , Medicina Tradicional Chinesa , Medição de Risco , Humanos , Medicamentos de Ervas Chinesas/farmacocinética , Medicamentos de Ervas Chinesas/toxicidade , Medicamentos de Ervas Chinesas/efeitos adversos , Animais , Resíduos de Praguicidas/farmacocinética , Resíduos de Praguicidas/toxicidade , Resíduos de Praguicidas/análise , Metais Pesados
2.
J Clin Med ; 13(17)2024 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-39274455

RESUMO

Background: Hypersensitivity to the new dermal injectable porcine-based collagen with lidocaine featuring a novel cross-linking technology (test filler) for nasolabial fold correction was compared to the commercially available traditional cross-linked dermal injectable porcine-based collagen with lidocaine (control filler). Methods: Recruited participants (n = 279) received a single 0.1 mL intradermal injection of either test filler or control filler in the left forearm as a screening skin allergy test. Injection sites were assessed clinically at 24 h post-implant. Treatment was given to 252 successfully screened participants, and injection sites were monitored for 21 days. Immunological examinations were performed at screening and then at 4 and 24 weeks post-treatment. Observations for adverse events continued until the 52nd week. Results: Intradermal allergy testing results were negative for all the test recipients (0/124) and positive for two control recipients (2/132, 1.5%). Most of the participants exhibited no changes in serum immunoglobulin (IgG, IgM) and complement (C3, C4) levels. No serious adverse events related to the device were recorded. Most adverse events were common complications of dermal filler treatment and were related to the injection site. Most adverse effects were resolved or under control by 52 weeks. Conclusions: Hypersensitivity reactions with the test filler were lower than those with the control filler, validating the safe use of test filler for nasolabial fold correction without the need for pretreatment skin testing.

3.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-39270776

RESUMO

INTRODUCTION AND OBJECTIVES: The association between apolipoprotein B (apoB) and residual cardiovascular (CV) risk in patients with chronic coronary syndrome (CCS) remains unclear. We aimed to investigate the association between apoB levels and CV outcomes in statin-treated CCS patients. METHODS: We enrolled 8641 statin-treated CCS patients at Fuwai Hospital. The patients were divided into 5 groups based on to apoB quintiles (Q1 to Q5). The primary endpoint was 3-year CV events, including CV death, nonfatal myocardial infarction, and nonfatal stroke. RESULTS: During a median follow-up of 3.17 years, there were 232 (2.7%) CV events. After multivariable adjustment, a restricted cubic spline illustrated a J-shaped relationship between apoB levels and 3-year CV events, with the risk remaining flat until apoB levels exceeded 0.73g/L, after which the risk increased (nonlinear P <.05). Kaplan-Meier curves showed the lowest CV event rate in the Q3 group (0.68-0.78g/L). Compared with the Q3 group, multivariable Cox regression models revealed that both low (Q1, ≤0.57g/L) and high (Q5, >0.93g/L) apoB levels were associated with an increased risk of major adverse cardiac events (all P <.05). Notably, patients with low apoB levels (Q1) had the highest risk of CV death (HR, 2.44; 95%CI, 1.17-5.08). CONCLUSIONS: Our analysis indicates that both low and high levels of apoB are associated with elevated CV risk, with the risk being particularly pronounced at higher levels (> 0.73g/L).

4.
Biosensors (Basel) ; 14(9)2024 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-39329800

RESUMO

Traditional drug development is a long and expensive process with high rates of failure. This has prompted the pharmaceutical industry to seek more efficient drug development frameworks, driving the emergence of organ-on-a-chip (OOC) based on microfluidic technologies. Unlike traditional animal experiments, OOC systems provide a more accurate simulation of human organ microenvironments and physiological responses, therefore offering a cost-effective and efficient platform for biomedical research, particularly in the development of new medicines. Additionally, OOC systems enable quick and real-time analysis, high-throughput experimentation, and automation. These advantages have shown significant promise in enhancing the drug development process. The success of an OOC system hinges on the integration of specific designs, manufacturing techniques, and biosensors to meet the need for integrated multiparameter datasets. This review focuses on the manufacturing, design, sensing systems, and applications of OOC systems, highlighting their design and sensing capabilities, as well as the technical challenges they currently face.


Assuntos
Técnicas Biossensoriais , Descoberta de Drogas , Dispositivos Lab-On-A-Chip , Microfluídica , Humanos , Animais , Sistemas Microfisiológicos
5.
Nutr Diabetes ; 14(1): 69, 2024 08 28.
Artigo em Inglês | MEDLINE | ID: mdl-39191777

RESUMO

BACKGROUND/OBJECTIVES: The hemoglobin glycation index (HGI) has been demonstrated to serve as a substitute for the individual bias in glycosylated hemoglobin A1c (HbA1c). Our objective was to assess the correlation between HGI and cardiovascular (CV) outcomes in patients with diabetes and coronary artery disease (CAD). SUBJECTS/METHODS: We sequentially recruited 11921 patients with diabetes and CAD at Fuwai Hospital. The patients were categorized into five groups based on their HGI quintiles, ranging from Q1 to Q5. The primary endpoint was the occurrence of major adverse cardiac events (MACEs), which included CV death and nonfatal myocardial infarction. RESULTS: During the median 3-year follow-up, 327 (2.7%) MACEs were observed. A U-shaped relationship between HGI and 3-year MACEs was demonstrated by restricted cubic spline (RCS) after multivariable adjustment (nonlinear P = 0.014). The Kaplan-Meier curves demonstrated that the Q2 group had the lowest risk of MACE (P = 0.006). When comparing the HGI Q2 group, multivariable Cox regression models showed that both low (Q1) and high (Q4 or Q5) HGI were linked to a higher risk of MACEs (all P < 0.05). Patients with a low HGI (Q1) had a significantly increased risk of all-cause and CV death, with a 1.70-fold increase in both cases (both P < 0.05). CONCLUSIONS: In individuals with diabetes and established CAD, HGI levels were found to have a U-shaped relationship with the occurrence of MACEs over a period of three years. Significantly, those with low HGI had an increased risk of CV death.


Assuntos
Doença da Artéria Coronariana , Hemoglobinas Glicadas , Humanos , Doença da Artéria Coronariana/sangue , Masculino , Feminino , Hemoglobinas Glicadas/análise , Hemoglobinas Glicadas/metabolismo , Pessoa de Meia-Idade , Idoso , Estudos de Coortes , Fatores de Risco , Diabetes Mellitus/sangue , Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/mortalidade , Infarto do Miocárdio/sangue , Modelos de Riscos Proporcionais , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/complicações , Seguimentos
6.
Pharmacol Res ; 208: 107378, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39216842

RESUMO

Dual antiplatelet therapy (DAPT), comprising both aspirin and the P2Y12 receptor inhibitor, is crucial in managing patients with coronary artery disease following percutaneous coronary intervention (PCI). The optimal duration for DAPT in patients with angiography-detected moderate-to-severe calcified coronary (MSCC) lesions who underwent PCI with drug-eluting stents (DES) implantation remains uncertain. We recruited patients with angiography-detected MSCC lesions who received DES implantation from the prospective Fuwai Percutaneous Coronary Intervention Registry. Patients were classified into two groups according to the duration of DAPT: those with a DAPT duration of one year or less, and those with a DAPT duration of more than one year. The primary endpoint was the major adverse cardiovascular and cerebrovascular event, which was defined as composed of all-cause death, nonfatal myocardial infarction, or nonfatal stroke. The key-safety endpoint was bleeding type 2, 3, or 5 according to the Bleeding Academic Research Consortium criteria. There were 1730 patients included in the study, and 470 (27.17 %) continued DAPT for more than one year after undergoing MSCC-PCI with DES implantation. The median follow-up time was 2.5 years. DAPT>1-year versus ≤1-year DAPT was significantly associated with a reduced risk of the primary outcome (1.59 % versus 3.19 %; adjusted hazard ratio=0.44; 95 % CI: 0.22-0.88). Similar trends were observed for all-cause death (0.16 % versus 1.91 %; P<0.001) and cardiovascular death (0.08 % versus 1.06 %; P=0.001). There was no significant difference in the key-safety endpoint between 2 regimens (1.75 % versus 0.85 %; adjusted hazard ratio=1.95; 95 % CI: 0.65-5.84). In conclusion, long-term DAPT after DES implantation in patients with MSCC lesions resulted in improved clinical outcomes at 2.5 years. This was achieved by reducing the risk of ischemia without increasing clinically significant bleeding.


Assuntos
Doença da Artéria Coronariana , Stents Farmacológicos , Terapia Antiplaquetária Dupla , Intervenção Coronária Percutânea , Inibidores da Agregação Plaquetária , Humanos , Masculino , Feminino , Idoso , Inibidores da Agregação Plaquetária/uso terapêutico , Inibidores da Agregação Plaquetária/administração & dosagem , Pessoa de Meia-Idade , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/terapia , Doença da Artéria Coronariana/tratamento farmacológico , Intervenção Coronária Percutânea/efeitos adversos , Terapia Antiplaquetária Dupla/métodos , Angiografia Coronária , Aspirina/uso terapêutico , Aspirina/administração & dosagem , Hemorragia/induzido quimicamente , Estudos Prospectivos , Resultado do Tratamento , Sistema de Registros , Calcificação Vascular/diagnóstico por imagem , Antagonistas do Receptor Purinérgico P2Y/uso terapêutico , Antagonistas do Receptor Purinérgico P2Y/administração & dosagem , Antagonistas do Receptor Purinérgico P2Y/efeitos adversos , Fatores de Tempo
7.
Diabetes Metab ; 50(5): 101566, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39127168

RESUMO

OBJECTIVE: Although insulin resistance (IR) has been recognized to be a causal component in various diseases, current information on the relationship between IR and long-term mortality in the general population is limited and conclusions varied among different IR indicators and different populations. We aimed to assess associations between different measurements of IR with long-term all-cause mortality and cardiovascular mortality risk for the general population. RESEARCH DESIGN AND METHODS: We included 13,909 individuals from the Third National Health and Nutrition Examination Survey. Mortality was identified via National Death Index information until December 31, 2019. IR was measured using fasting insulin, homeostasis model assessment of IR (HOMA-IR), homeostasis model assessment of ß-cell function, quantitative insulin sensitivity check index (QUICKI), insulin-to-glucose ratio (IGR), triglyceride glucose (TyG) index, TyG-body mass index (TyG-BMI), and hypertriglyceridemic-waist phenotype. RESULTS: During median 25-year follow-up, 5,306 all-cause mortality events occurred. After multivariate adjustment, variables significantly associated with elevated all-cause mortality risk were (hazard ratio [95 % confidence interval]): higher insulin (1.07 [1.02;1.13]); HOMA-IR (1.08 [1.03;1.13]); IGR (1.05 [1.00;1.11]); TyG (1.07 [1.00;1.14]); TyG-BMI (1.24 [1.02;1.51]); lower QUICKI (0.91 [0.86-0.96]). After stratification by diabetes status, higher insulin, HOMA-IR, TyG-BMI and lower QUICKI were significantly associated with increased risk of all-cause mortality in both diabetes and non-diabetes populations (all P for interaction > 0.05). Higher TyG (adjusted HR 1.17 [1.09;1.26], P for interaction = 0.018) and hypertriglyceridemic-waist phenotype (adjusted HR 1.26 [1.08;1.46], P for interaction = 0.047) were significantly associated with increased risk of all-cause mortality in patients with diabetes, however, these associations could not be seen in people without diabetes. Similar results were observed between the above-mentioned IR indicators and cardiovascular death. CONCLUSIONS: Fasting insulin, HOMA-IR, TyG-BMI, and QUICKI may indicate mortality risk in diabetes and non-diabetes populations, with TyG and the hypertriglyceridemic-waist phenotype showing particular relevance for individuals with diabetes. Further studies are needed to validate these findings and determine their broader applicability.


Assuntos
Glicemia , Doenças Cardiovasculares , Resistência à Insulina , Insulina , Humanos , Resistência à Insulina/fisiologia , Masculino , Feminino , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/sangue , Pessoa de Meia-Idade , Insulina/sangue , Adulto , Estudos de Coortes , Glicemia/análise , Fatores de Risco , Idoso , Índice de Massa Corporal , Inquéritos Nutricionais , Causas de Morte
8.
Diabetes Obes Metab ; 26(11): 4933-4944, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-39188235

RESUMO

AIM: To evaluate the relationship between the stress-hyperglycaemia ratio (SHR) and the clinical prognosis of patients with moderate-to-severe coronary artery calcification (MSCAC). METHODS: We consecutively enrolled 3841 patients with angiography-detected MSCAC. The individuals were categorized into three groups based on SHR tertiles: T1 (SHR ≤ 0.77), T2 (0.77 < SHR ≤ 0.89) and T3 (SHR > 0.89). The SHR value was calculated using the formula SHR = [admission glucose (mmol/L)]/[1.59 × HbA1c (%) - 2.59]. The primary outcomes were major adverse cardiovascular and cerebrovascular events (MACCEs), including all-cause death, non-fatal myocardial infarction and non-fatal stroke. RESULTS: During a median follow-up of 3.11 years, 241 MACCEs were recorded. Kaplan-Meier survival analysis showed that the SHR T3 group had the highest incidence of MACCEs (P < .001). Moreover, findings from the restricted cubic spline analysis showed a significant and positive association between the SHR and MACCEs. This correlation remained consistent even after considering other variables that could potentially impact the results (Pnon-linear = .794). When comparing SHR T1 with SHR T3, it was found that SHR T3 was significantly associated with an increased risk of the primary outcome (adjusted hazard ratio = 1.50; 95% confidence interval: 1.10-2.03). CONCLUSIONS: Patients with MSCAC showed a positive correlation between the SHR and MACCE rate over a 3-year follow-up period. The study showed that an SHR value of 0.83 is the key threshold, indicating a poor prognosis. Future large-scale multicentre investigations should be conducted to determine the predictive value of the SHR in patients with MSCAC.


Assuntos
Doença da Artéria Coronariana , Hiperglicemia , Calcificação Vascular , Humanos , Feminino , Masculino , Prognóstico , Pessoa de Meia-Idade , Calcificação Vascular/epidemiologia , Idoso , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/mortalidade , Hiperglicemia/complicações , Hiperglicemia/epidemiologia , Estudos de Coortes , Glicemia/metabolismo , Glicemia/análise , Índice de Gravidade de Doença , Seguimentos , Fatores de Risco , Estresse Psicológico/complicações
9.
J Vet Pharmacol Ther ; 2024 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-39135274

RESUMO

Mycoplasma synoviae (MS) infection is a serious threat to poultry industry in China. Tilmicosin is a semisynthetic macrolide antibiotic used only in animals and has shown potential efficacy against MS, but there were no reported articles concerning the pharmacokinetics/pharmacodynamics (PK/PD) interactions of tilmicosin against MS in vitro and vivo. This study aimed to assess the antibacterial activity of tilmicosin against MS in vitro and in vivo using PK/PD model to provide maximal efficacy. The minimum inhibitory concentration (MIC) and killing rates of different drug concentrations were measured using the microdilution method in vitro. Then, tilmicosin was administered orally to the MS-infected chickens at doses of 7.5 and 60 mg/kg, and the PK parameters of tilmicosin in joint dialysates were determined using high-pressure liquid chromatography/tandem mass spectrometry (HPLC-MS/MS) combined with the microdialysis technique. The antibacterial effect (△E) was calculated when the infected chickens were administered a single oral dose of tilmicosin at 4, 7.5, 15, 30, and 60 mg/kg b.w. The PK and PD data were fitted using the Sigmoid Emax model to evaluate the PK/PD interactions of tilmicosin against MS. The bactericidal activity of tilmicosin against MS was concentration dependent. Furthermore, the PK/PD index of AUC0-72h/MIC exhibited the most optimal fitting results (R2 = .98). The MS load decreased by 1, 2, and 3 Log10 CFU/mL, then AUC/MIC was determined as 13.99, 20.53, and 28.23 h, respectively, and the bactericidal effect can be achieved when the dose of MS-infected chickens is at 31.64 mg/kg b.w. The findings of this study hold significant implications for optimizing the treatment regimen for MS infection.

10.
Fungal Genet Biol ; 173: 103911, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38960372

RESUMO

Coprinopsis cinerea, a model fungus, is utilized for investigating the developmental mechanisms of basidiomycetes. The development of basidiomycetes is a highly organized process that requires coordination among genetic, environmental, and physiological factors. Oxylipins, a class of widely distributed signaling molecules, play crucial roles in fungal biology. Among oxylipins, the sexual pheromone-inducing factors (psi factors) have been identified as key regulators of the balance between asexual and sexual spore development in Ascomycetes. Linoleate dioxygenases are enzymes involved in the biosynthesis of psi factors, yet their specific physiological functions in basidiomycete development remain unclear. In this study, linoleate dioxygenases in basidiomycetes were identified and characterized. Phylogenetic analysis revealed that linoleate dioxygenases from Basidiomycota formed a distinct clade, with linoleate dioxygenases from Agaricomycetes segregating into three groups and those from Ustilaginomycetes forming a separate group. Both basidiomycete and ascomycete linoleate dioxygenases shared two characteristic domains: the N-terminal of linoleate dioxygenase domain and the C-terminal of cytochrome P450 domain. While the linoleate dioxygenase domains exhibited similarity between basidiomycetes and ascomycetes, the cytochrome P450 domains displayed high diversity in key sites. Furthermore, the gene encoding the linoleate dioxygenase Ccldo1 in C. cinerea was knocked out, resulting in a significant increase in fruiting body formation without affecting asexual conidia production. This observation suggests that secondary metabolites synthesized by CcLdo1 negatively regulate the sexual reproduction process in C. cinerea while not influencing the asexual reproductive process. This study represents the first identification of a gene involved in secondary metabolite synthesis that regulates basidiocarp development in a basidiomycete.


Assuntos
Basidiomycota , Carpóforos , Proteínas Fúngicas , Filogenia , Carpóforos/genética , Carpóforos/crescimento & desenvolvimento , Carpóforos/enzimologia , Basidiomycota/genética , Basidiomycota/enzimologia , Basidiomycota/crescimento & desenvolvimento , Proteínas Fúngicas/genética , Proteínas Fúngicas/metabolismo , Dioxigenases/genética , Dioxigenases/metabolismo , Agaricales/genética , Agaricales/enzimologia , Agaricales/crescimento & desenvolvimento , Agaricales/metabolismo , Regulação Fúngica da Expressão Gênica , Esporos Fúngicos/crescimento & desenvolvimento , Esporos Fúngicos/genética , Esporos Fúngicos/enzimologia
11.
Hepatol Commun ; 8(7)2024 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-38967581

RESUMO

HCC is globally recognized as a major health threat. Despite significant progress in the development of treatment strategies for liver cancer, recurrence, metastasis, and drug resistance remain key factors leading to a poor prognosis for the majority of liver cancer patients. Thus, there is an urgent need to develop effective biomarkers and therapeutic targets for HCC. Collagen, the most abundant and diverse protein in the tumor microenvironment, is highly expressed in various solid tumors and plays a crucial role in the initiation and progression of tumors. Recent studies have shown that abnormal expression of collagen in the tumor microenvironment is closely related to the occurrence, development, invasion, metastasis, drug resistance, and treatment of liver cancer, making it a potential therapeutic target and a possible diagnostic and prognostic biomarker for HCC. This article provides a comprehensive review of the structure, classification, and origin of collagen, as well as its role in the progression and treatment of HCC and its potential clinical value, offering new insights into the diagnosis, treatment, and prognosis assessment of liver cancer.


Assuntos
Biomarcadores Tumorais , Carcinoma Hepatocelular , Colágeno , Neoplasias Hepáticas , Microambiente Tumoral , Humanos , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/tratamento farmacológico , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/tratamento farmacológico , Biomarcadores Tumorais/análise , Colágeno/metabolismo , Prognóstico , Progressão da Doença
12.
Clin Cosmet Investig Dermatol ; 17: 1621-1631, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39006129

RESUMO

Purpose: Porcine-based dermal injectable collagen is effective for nasolabial fold correction. In the present study, a new dermal injectable collagen, incorporating a novel cross-linking technology and premixed with lidocaine, was introduced. The study aimed to determine the efficacy of the new dermal injectable collagen in improving bilateral nasolabial fold wrinkles, and reducing pain during injection. Patients and Methods: This prospective, double-blind, multicenter, parallel-group, randomized trial enrolled participants with moderate-to-severe bilateral nasolabial fold wrinkles from February 2019 to March 2021. Participants were randomly assigned to the test group (new dermal injectable collagen with lidocaine featuring a novel cross-linking technology) or control group (traditionally cross-linked dermal injectable collagen with lidocaine). Participants were monitored for adverse events (AEs), and for pain using the Thermometer Pain Scale (TPS) and a visual analog scale (VAS). Efficacy was measured using the Wrinkle Severity Rating Scale (WSRS) and the Global Aesthetic Improvement Scale (GAIS). Results: On the poor or better sides, the 2 groups exhibited a significant decrease in WSRS scores at 4, 12, 24, and 36 weeks after treatment, compared to baseline WSRS scores (all, p < 0.05). Compared to the control group, the test group had a greater decrease in WSRS score (poor or better sides) at 12, 24, 36, and 52 weeks after treatment (all, p < 0.05). A similar observation was also found in the WSRS response rate and GAIS score of the 2 groups. VAS and TPS scores were not significantly different between the 2 groups (p > 0.05), indicating that pain reduction was similar in the 2 groups. All AEs were anticipated AEs associated with facial aesthetic injections, and most recovered within 0 to 30 days without sequelae. There were no differences in AEs between the 2 groups (all, p > 0.05). Conclusion: The new dermal injectable collagen with lidocaine exhibited better efficacy for correcting nasolabial fold wrinkles compared to the control group. Both relieved pain and produced only transient and tolerable AEs.

13.
World J Clin Cases ; 12(20): 4440-4445, 2024 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-39015930

RESUMO

BACKGROUND: Gelastic seizure (GS) is a rare type of epilepsy that most commonly appears in patients with hypothalamic hamartoma. It is rarely associated with other types of brain damage. This particular type of epilepsy is relatively rare and has few links to other brain lesions. Temporal lobe malacia is mostly caused by cerebral infarction or cerebral hemorrhage, which can lead to seizures. We report a case of GS in a woman with temporal lobe malacia which was reported for the first time in the literature. CASE SUMMARY: A 73-year-old female, diagnosed case of GS, presented with repetitive stereotyped laughter a month prior to presentation, happening multiple times daily and with each time lasting for 5-15s. Electroencephalogram displayed a focal seizure seen in the right temporal region. Magnetic resonance imaging head with contrast showed a right temporal lobe malacia. The patient was started on levetiracetam daily. The patient indicated that they had fully recovered and were not experiencing any recurrent or stereotyped laughter during their daily routines. These results remained consistent even after a one-year follow-up period. CONCLUSION: GS can be caused by temporal lobe malacia, which is an uncommon but potentially grave condition. The outcome of this present case exhibited the importance of the temporal lobe in the genesis of GS.

14.
Chin J Integr Med ; 30(9): 818-825, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38850479

RESUMO

OBJECTIVE: To explore the potential of metanephric mesenchymal cells (MMCs) for osteogenesis and naringin's ability to enhance this process and its molecular mechanism. METHODS: Porcine MMCs at 70 days of gestation were used as tool cells, cultured in osteogenic induction medium, identified by immunocytochemistry staining. Osteogenic potential of porcine MMCs and naringin's ability to enhance this process was tested by detecting changes in cell viability, alkaline phosphatase (ALP) activity, the expression of runt-related transcription factor 2 (Runx2), osteopontin (OPN) and osteocalcin (OCN), and the formation of mineralized nodules, and the application of the p38 signaling pathway inhibitor SB203580 vitiated the osteogenesis-promoting effect of naringin. RESULTS: Immunocytochemical staining showed that the cells were Vimentin and Six2(+), E-cadherin and CK-18(-). Naringin can activate the p38 signaling pathway to enhance the osteogenesis of porcine MMCs by increasing cell viability, ALP activity, the expressions of Runx2, OPN and OCN, and the formation of mineralized nodules (P<0.05). The application of p38 signaling pathway inhibitor SB203580 vitiated the osteogenesis-promoting effect of naringin, manifested by decreased ALP activity, the expressions of Runx2, OPN and OCN, and the formation of mineralized nodules (P<0.05). CONCLUSION: Naringin, the active ingredient of Chinese herbal medicine Rhizoma Drynariae for nourishing Shen (Kidney) and strengthening bone, enhances the osteogenic differentiation of renal MMCs through the p38 signaling pathway.


Assuntos
Diferenciação Celular , Sobrevivência Celular , Flavanonas , Células-Tronco Mesenquimais , Osteogênese , Proteínas Quinases p38 Ativadas por Mitógeno , Animais , Flavanonas/farmacologia , Osteogênese/efeitos dos fármacos , Diferenciação Celular/efeitos dos fármacos , Células-Tronco Mesenquimais/efeitos dos fármacos , Células-Tronco Mesenquimais/metabolismo , Células-Tronco Mesenquimais/citologia , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo , Suínos , Sobrevivência Celular/efeitos dos fármacos , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Fosfatase Alcalina/metabolismo , Rim/efeitos dos fármacos , Rim/citologia , Transdução de Sinais/efeitos dos fármacos , Imidazóis/farmacologia , Piridinas
15.
Int J Nanomedicine ; 19: 4977-4994, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38828204

RESUMO

Purpose: Exosomes are membrane vesicles secreted by various cells and play a crucial role in intercellular communication. They can be excellent delivery vehicles for oligonucleotide drugs, such as microRNAs, due to their high biocompatibility. MicroRNAs have been shown to be more stable when incorporated into exosomes; however, the lack of targeting and immune evasion is still the obstacle to the use of these microRNA-containing nanocarriers in clinical settings. Our goal was to produce functional exosomes loaded with target ligands, immune evasion ligand, and oligonucleotide drug through genetic engineering in order to achieve more precise medical effects. Methods: To address the problem, we designed engineered exosomes with exogenous cholecystokinin (CCK) or somatostatin (SST) as the targeting ligand to direct the exosomes to the brain, as well as transduced CD47 proteins to reduce the elimination or phagocytosis of the targeted exosomes. MicroRNA-29b-2 was the tested oligonucleotide drug for delivery because our previous research showed that this type of microRNA was capable of reducing presenilin 1 (PSEN1) gene expression and decreasing the ß-amyloid accumulation for Alzheimer's disease (AD) in vitro and in vivo. Results: The engineered exosomes, containing miR29b-2 and expressing SST and CD47, were produced by gene-modified dendritic cells and used in the subsequent experiments. In comparison with CD47-CCK exosomes, CD47-SST exosomes showed a more significant increase in delivery efficiency. In addition, CD47-SST exosomes led to a higher delivery level of exosomes to the brains of nude mice when administered intravenously. Moreover, it was found that the miR29b-2-loaded CD47-SST exosomes could effectively reduce PSEN1 in translational levels, which resulted in an inhibition of beta-amyloid oligomers production both in the cell model and in the 3xTg-AD animal model. Conclusion: Our results demonstrated the feasibility of the designed engineered exosomes. The application of this exosomal nanocarrier platform can be extended to the delivery of other oligonucleotide drugs to specific tissues for the treatment of diseases while evading the immune system.


Assuntos
Doença de Alzheimer , Peptídeos beta-Amiloides , Antígeno CD47 , MicroRNAs , Presenilina-1 , Receptores de Somatostatina , Animais , Humanos , Camundongos , Doença de Alzheimer/metabolismo , Doença de Alzheimer/genética , Peptídeos beta-Amiloides/metabolismo , Encéfalo/efeitos dos fármacos , Encéfalo/metabolismo , Antígeno CD47/genética , Antígeno CD47/metabolismo , Modelos Animais de Doenças , Exossomos/metabolismo , MicroRNAs/administração & dosagem , MicroRNAs/genética , MicroRNAs/farmacologia , Presenilina-1/genética , Receptores de Somatostatina/genética , Receptores de Somatostatina/metabolismo , Somatostatina
16.
Huan Jing Ke Xue ; 45(6): 3543-3552, 2024 Jun 08.
Artigo em Chinês | MEDLINE | ID: mdl-38897774

RESUMO

In order to explore the effect of Rosa roxburghii pomace biochar on the yield and quality of Chinese cabbage and soil properties and realize the resource utilization of R. roxburghii pomace, a pot experiment was conducted to study the effect of R. roxburghii pomace biochar on the yield and quality of Chinese cabbage and soil properties by setting five biochar application rates of 0 % (CK), 1 % (T1), 3 % (T2), 5 % (T3), and 7 % (T4). The results showed that:① The application of R. roxburghii pomace biochar could significantly improve the yield and quality of Chinese cabbage, and the effect was the best at a 5 % biochar application rate. The yield, soluble solids, soluble sugar, vitamin C, total nitrogen, total phosphorus, and total potassium content of Chinese cabbage increased by 71.51 %, 40.14 %, 33.65 %, 38.08 %, 9.03 %, 28.85 %, and 35.38 %, respectively, compared with those in CK. ② The application of biochar from R. roxburghii pomace could significantly improve soil properties and increase soil nutrient content and availability. The effect was better at a 5 % biochar application rate. The soil pH, organic matter, total nitrogen, alkali-hydrolyzable nitrogen, available phosphorus, and available potassium content increased by 41.06 %, 134.84 %, 157.48 %, 140.79 %, 341.75 %, and 627.13 %, respectively, compared with those in CK. The contents of available Fe, Mn, Cu, and Zn and exchangeable Ca and Mg increased by 37.68 %, 61.69 %, 400.00 %, 4 648.84 %, 617.17 %, and 351.42 %, respectively, compared with those in CK. ③ The application of biochar from R. roxburghii pomace could significantly enhance soil enzyme activity. Compared with those in the CK treatment, soil urease, acid phosphatase, catalase, and sucrase increased by 51.43 %-362.86 %, 90.63 %-134.14 %, 21.40 %-85.12 %, and 82.92 %-218.43 %, respectively. ④ Redundancy analysis showed that soil AK; exchangeable Ca, SOM, and AP; and available Zn were the main factors affecting the yield and quality of Chinese cabbage, and there was a significant positive correlation between them. In summary, the application of R. roxburghii pomace biochar can significantly increase the yield and quality of Chinese cabbage and improve soil properties. The preparation of R. roxburghii pomace into biochar can provide a theoretical reference for the rational utilization of R. roxburghii pomace resources.


Assuntos
Brassica , Carvão Vegetal , Rosa , Solo , Brassica/crescimento & desenvolvimento , Carvão Vegetal/química , Rosa/crescimento & desenvolvimento , Solo/química , Fertilizantes , Nitrogênio , Biomassa , Controle de Qualidade , Fósforo
17.
Cardiovasc Diabetol ; 23(1): 190, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38824608

RESUMO

BACKGROUND: Coronary three-vessel disease (CTVD) accounts for one-third of the overall incidence of coronary artery disease, with heightened mortality rates compared to single-vessel lesions, including common trunk lesions. Dysregulated glucose metabolism exacerbates atherosclerosis and increases cardiovascular risk. The stress hyperglycemia ratio (SHR) is proposed as an indicator of glucose metabolism status but its association with cardiovascular outcomes in CTVD patients undergoing percutaneous coronary intervention (PCI) remains unclear. METHODS: 10,532 CTVD patients undergoing PCI were consecutively enrolled. SHR was calculated using the formula: admission blood glucose (mmol/L)/[1.59×HbA1c (%)-2.59]. Patients were divided into two groups (SHR Low and SHR High) according to the optimal cutoff value of SHR. Multivariable Cox regression models were used to assess the relationship between SHR and long-term prognosis. The primary endpoint was cardiovascular (CV) events, composing of cardiac death and non-fatal myocardial infarction (MI). RESULTS: During the median follow-up time of 3 years, a total of 279 cases (2.6%) of CV events were recorded. Multivariable Cox analyses showed that high SHR was associated with a significantly higher risk of CV events [Hazard Ratio (HR) 1.99, 95% Confidence interval (CI) 1.58-2.52, P < 0.001). This association remained consistent in patients with (HR 1.50, 95% CI 1.08-2.10, P = 0.016) and without diabetes (HR 1.97, 95% CI 1.42-2.72, P < 0.001). Additionally, adding SHR to the base model of traditional risk factors led to a significant improvement in the C-index, net reclassification and integrated discrimination. CONCLUSIONS: SHR was a significant predictor for adverse CV outcomes in CTVD patients with or without diabetes, which suggested that it could aid in the risk stratification in this particular population regardless of glucose metabolism status.


Assuntos
Biomarcadores , Glicemia , Doença da Artéria Coronariana , Hiperglicemia , Intervenção Coronária Percutânea , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Glicemia/metabolismo , Medição de Risco , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/mortalidade , Doença da Artéria Coronariana/terapia , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/diagnóstico , Biomarcadores/sangue , Fatores de Risco , Intervenção Coronária Percutânea/efeitos adversos , Intervenção Coronária Percutânea/mortalidade , Fatores de Tempo , Hiperglicemia/sangue , Hiperglicemia/diagnóstico , Hiperglicemia/epidemiologia , Hiperglicemia/mortalidade , Resultado do Tratamento , Hemoglobinas Glicadas/metabolismo , Valor Preditivo dos Testes , Estudos Retrospectivos , Infarto do Miocárdio/sangue , Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio/diagnóstico , Infarto do Miocárdio/mortalidade
18.
Sci Rep ; 14(1): 13480, 2024 06 12.
Artigo em Inglês | MEDLINE | ID: mdl-38866837

RESUMO

The long-term trends in maternal and child health (MCH) in China and the national-level factors that may be associated with these changes have been poorly explored. This study aimed to assess trends in MCH indicators nationally and separately in urban and rural areas and the impact of public policies over a 30‒year period. An ecological study was conducted using data on neonatal mortality rate (NMR), infant mortality rate (IMR), under-five mortality rate (U5MR), and maternal mortality ratio (MMR) nationally and separately in urban and rural areas in China from 1991 to 2020. Joinpoint regression models were used to estimate the annual percentage changes (APC), average annual percentage changes (AAPC) with 95% confidence intervals (CIs), and mortality differences between urban and rural areas. From 1991 to 2020, maternal and child mortalities in China gradually declined (national AAPC [95% CI]: NMRs - 7.7% [- 8.6%, - 6.8%], IMRs - 7.5% [- 8.4%, - 6.6%], U5MRs - 7.5% [- 8.5%, - 6.5%], MMRs - 5.0% [- 5.7%, - 4.4%]). However, the rate of decline nationally in child mortality slowed after 2005, and in maternal mortality after 2013. For all indicators, the decline in mortality was greater in rural areas than in urban areas. The AAPCs in rate differences between rural and urban areas were - 8.5% for NMRs, - 8.6% for IMRs, - 7.7% for U5MRs, and - 9.6% for MMRs. The AAPCs in rate ratios (rural vs. urban) were - 1.2 for NMRs, - 2.1 for IMRs, - 1.7 for U5MRs, and - 1.9 for MMRs. After 2010, urban‒rural disparity in MMR did not diminish and in NMR, IMR, and U5MR, it gradually narrowed but persisted. MCH indicators have declined at the national level as well as separately in urban and rural areas but may have reached a plateau. Urban‒rural disparities in MCH indicators have narrowed but still exist. Regular analyses of temporal trends in MCH are necessary to assess the effectiveness of measures for timely adjustments.


Assuntos
Saúde da Criança , Mortalidade da Criança , Mortalidade Infantil , Saúde Materna , Mortalidade Materna , População Rural , População Urbana , Humanos , China/epidemiologia , Saúde da Criança/tendências , Feminino , Lactente , Saúde Materna/tendências , Mortalidade Infantil/tendências , Pré-Escolar , Mortalidade da Criança/tendências , Mortalidade Materna/tendências , Criança , Recém-Nascido , Masculino
19.
Nutr Metab Cardiovasc Dis ; 34(9): 2124-2133, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38749784

RESUMO

BACKGROUND AND AIMS: This study aimed to investigate the association of the triglyceride-glucose (TyG) index, a simple-but-reliable indicator of insulin resistance, with risk of cardiovascular (CV) events in coronary artery disease (CAD) patients with different inflammation status. METHODS AND RESULTS: We consecutively recruited 20,518 patients with angiograph-proven-CAD from 2017 to 2018 at Fuwai Hospital. Patients were categorized according to baseline TyG index tertiles (T) (tertile 1: ≤8.624; T2: 8.624-9.902 and T3: >9.902) and further assigned into 6 groups by high-sensitivity C-reactive protein (hsCRP) medians. The primary endpoint was CV events including CV death, nonfatal myocardial infarction and nonfatal stroke. During the 3.1-year-follow-up, 618 (3.0%) CV events were recorded. Overall, patients with high TyG index levels (T2 or T3) showed significantly increased risk of CV events (hazard ratio [HR]: 1.24; 95% confidence interval [CI]: 1.01-1.53; HR: 1.33; 95%CI: 1.05-1.68, respectively) compared with those with lowest Tyg index (T1) after adjusting for confounding factors. Upon stratification by hsCRP levels, elevated TyG index was associated with increased risk of CV events only in patients with hsCRP levels > median (per-1-unit-increase HR: 1.39; 95%CI: 1.11-1.74), rather than in those with hsCRP levels ≤ median. Furthermore, adding the TyG index to the predicting model led to a significant improvement in patients with hsCRP > median rather than in those with hsCRP ≤ median. CONCLUSIONS: We firstly found that elevated TyG index levels were associated with increased risk of CV events in CAD patients, especially in those with increased inflammatory status, suggesting that it could help in risk stratification and prognosis in this population.


Assuntos
Biomarcadores , Glicemia , Doença da Artéria Coronariana , Mediadores da Inflamação , Inflamação , Resistência à Insulina , Triglicerídeos , Humanos , Masculino , Feminino , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/mortalidade , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/diagnóstico por imagem , Pessoa de Meia-Idade , Biomarcadores/sangue , Triglicerídeos/sangue , Idoso , Medição de Risco , Glicemia/metabolismo , Inflamação/sangue , Inflamação/diagnóstico , Prognóstico , Mediadores da Inflamação/sangue , Fatores de Tempo , China/epidemiologia , Proteína C-Reativa/análise , Valor Preditivo dos Testes , Fatores de Risco
20.
Angiology ; : 33197241255414, 2024 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-38763893

RESUMO

Lipoprotein (a) [Lp(a)] could contribute to coronary artery disease (CAD) through proinflammatory effects. The neutrophil to lymphocyte ratio (NLR) is an inflammatory biomarker. We consecutively enrolled 7,922 CAD patients to investigate the synergistic association of Lp(a) and NLR with prognosis in patients undergoing percutaneous coronary intervention (PCI). NLR was calculated as the neutrophil count divided by the lymphocyte count. Cutoff for NLR was a median of 2.07. The threshold value was set at 30 mg/dL for Lp(a). The primary endpoint was major adverse cardiac events (MACEs), including all-cause mortality and myocardial infarction. During 2 years follow-up, 111 (1.40%) MACEs occurred. Lp(a) > 30 mg/dL was associated with an increased MACE risk in participants with NLR ≥2.07 [adjusted hazard ratio (HR), 1.84; 95% CI, 1.12-3.03], but not in participants with NLR <2.07 (adjusted HR, 0.74; 95% CI, 0.38-1.45) (Pinteraction = 0.021). Subgroup analysis demonstrated that the synergistic association of Lp(a) and NLR with prognosis was more pronounced in female patients (Pinteraction = 0.028). This study suggested that combining Lp(a) and NLR may be useful for risk stratification in CAD population.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA