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1.
Pharmacol Res ; 204: 107194, 2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38663526

RESUMO

Antibiotic related intestinal injury in early life affects subsequent health and susceptibility. Here, we employed weaned piglets as a model to investigate the protective effects of baicalin against early-life antibiotic exposure-induced microbial dysbiosis. Piglets exposed to lincomycin showed a marked reduction in body weight (p < 0.05) and deterioration of jejunum intestinal morphology, alongside an increase in antibiotic-resistant bacteria such as Staphylococcus, Dolosicoccus, Escherichia-Shigella, and Raoultella. In contrast, baicalin treatment resulted in body weights, intestinal morphology, and microbial profiles that closely resembled those of the control group (p > 0.05), with a significant increase in norank_f_Muribaculaceae and Prevotellaceae_NK3B31_group colonization compared with lincomycin group (p < 0.05). Further analysis through fecal microbial transplantation into mice revealed that lincomycin exposure led to significant alterations in intestinal morphology and microbial composition, notably increasing harmful microbes and decreasing beneficial ones such as norank_Muribaculaceae and Akkermansia (p < 0.05). This shift was associated with an increase in harmful metabolites and disruption of the calcium signaling pathway gene expression. Conversely, baicalin supplementation not only counteracted these effects but also enhanced beneficial metabolites and regulated genes within the MAPK signaling pathway (MAP3K11, MAP4K2, MAPK7, MAPK13) and calcium channel proteins (ORA13, CACNA1S, CACNA1F and CACNG8), suggesting a mechanism through which baicalin mitigates antibiotic-induced intestinal and microbial disturbances. These findings highlight baicalin's potential as a plant extract-based intervention for preventing antibiotic-related intestinal injury and offer new targets for therapeutic strategies.

2.
Perfusion ; 38(2): 228-235, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-34617860

RESUMO

PURPOSE: In this article, we aimed to elaborate on perioperative and complication management in treatment of pheochromocytoma crisis with extracorporeal membrane oxygenation (ECMO). MATERIAL AND METHODS: We report a case of relatively rare grant paraganglioma-induced pheochromocytoma crisis leading to severe circulatory failure, treated with venoarterial extracorporeal membrane oxygenation (V-A ECMO) as a bridge to curative adrenalectomy. Weaning of ECMO was followed by successful surgical removal of the tumor, and patient survival. However, distal ischemia of the cannulated leg occurred during ECMO operation, which eventually led to amputation. In addition, the patient developed new cerebral infarction and left hemiplegia, half a month after paraganglioma resection. CONCLUSIONS: We believe that patients with pheochromocytoma crisis, who cannot maintain blood circulation, are eligible for V-A ECMO treatment. Moreover, care should be taken to prevent thrombosis and individualized and precise blood pressure management targets. Early detection and treatment of thrombosis is imperative to long-term prognosis of patients with ECMO.


Assuntos
Neoplasias das Glândulas Suprarrenais , Oxigenação por Membrana Extracorpórea , Paraganglioma , Feocromocitoma , Trombose , Humanos , Feocromocitoma/complicações , Feocromocitoma/cirurgia , Neoplasias das Glândulas Suprarrenais/complicações , Neoplasias das Glândulas Suprarrenais/cirurgia , Paraganglioma/complicações , Estudos Retrospectivos
3.
Front Microbiol ; 14: 1289490, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38282732

RESUMO

According to the Chinese encyclopedia "Ben Cao Gang Mu" (AD 1552-1578), Caprifoliaceae and Scutellaria baicalensis Georgi are used in traditional Chinese medicine to clear heat, detoxify, and treat wind-heat colds, upper respiratory tract infections, and pneumonia. However, the mechanism and the effects of the compound extracts of Caprifoliaceae and Scutellaria baicalensis Georgi on intestinal health remain unclear. From the perspective of intestinal microbes, this study assessed the antioxidant, anti-inflammatory, and intestinal protective properties of Caprifoliaceae and Scutellaria baicalensis Georgi. Mice received diets with or without Caprifoliaceae and Scutellaria baicalensis Georgi extractive (BCA) for 2 weeks in this study. The results showed that BCA increased body weight gain, feed intake, and catalase (CAT) content in the mice but reduced γ-glutamyl transpeptidase (γ-GT) content in the serum (p < 0.05). BCA improved the Sobs, Chao, and Ace indices, as well as the number of Campylobacterota, Patercibacteria, and Desulfobacterota in the colon microbiota, while it decreased the Firmicutes phylum (p < 0.05). At the genus level, BCA increased Candidatus_Saccharimonas, Helicobacter, unclassified_f_Lachnospiraceae, Alistipes, norank_f_norank_o_Clostridia_vadinBB60_group, norank_f_Ruminococcaceae, unclassified_f_Ruminococcaceae, etc. abundance (p < 0.05), but it significantly decreased Lactobacillus and Lachnospiraceae_UCG_001 abundance (p < 0.05). Moreover, BCA improved the concentration of acetic acid, butyric acid, propionic acid, valeric acid, and isovaleric acid and diminished the concentration of isobutyric acid (p < 0.05). Correlation analysis shows that the changes in short-chain fatty acids and antioxidant and inflammatory indices in the serum were significantly correlated with the BCA-enriched microbiota. This study supplemented a database for the application of Caprifoliaceae and Scutellaria baicalensis Georgi in clinical and animal production.

4.
BMC Pediatr ; 21(1): 243, 2021 05 19.
Artigo em Inglês | MEDLINE | ID: mdl-34011296

RESUMO

BACKGROUND: There are few non-invasive monitoring methods that can reliably predict fluid responsiveness (FR) in children. Here, we interrogate the value of doppler ultrasound evaluation of passive leg raising (PLR)-induced changes in stroke volume (SV) and cardiac output (CO) as a predictor of FR in children with mechanical ventilation after congenital cardiac surgery. METHODS: A total of 40 children with mechanical ventilation following congenital cardiac surgery, who required volume expansion (VE) were included in this study. Hemodynamic parameters such as heart rate (HR), mean arterial pressure (MAP), SV, and central venous pressure (CVP) were monitored before and after PLR and VE. Besides, we assessed changes in SV and CO by bedside ultrasound. Patients showing > 10 % increase in SV in response to VE were considered to be responders (26 patients), while the rest (14 patients) were defined as non-responders. RESULTS: Our data demonstrated that ΔSV-PLR and ΔCO- PLR were positively correlated with ΔSV-VE (r = 0.683, p < 0.001 and r = 0.374, p = 0.017, respectively), and the area under the ROC curve (AUC) of ΔSV-PLR was 0.879 (95 % CI [0.745 1.000], p < 0.001). The best cut-off value for ΔSV-PLR in predicting FR was 13 %, with its sensitivity and specificity were 81.8 and 86.3 %, respectively. ΔCVP, ΔHR, and ΔMAP were weak predictors of FR in the children. CONCLUSIONS: Our study demonstrated that SV changes, as evaluated by noninvasive ultrasound combined with PLR, could effectively evaluate FR in children under mechanical ventilation after congenital cardiac surgery.


Assuntos
Procedimentos Cirúrgicos Cardíacos , Perna (Membro) , Débito Cardíaco , Criança , Hidratação , Hemodinâmica , Humanos , Volume Sistólico
5.
Diagn Microbiol Infect Dis ; 99(3): 115276, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33341492

RESUMO

BACKGROUND: The aim of this study was to investigate the diagnostic value of cryptococcal antigen-lateral flow immunochromatographic assay (CrAg-LFA) in bronchoalveolar lavage fluid (BALF) of patients with pulmonary cryptococcosis (PC). METHODS: A total of 308 patients were divided into the PC group (n = 72) and the non-PC group (n = 236). The clinical data, pathogen detection, radiological imaging, and the detection of the cryptococcal antigen in blood and BALF samples were analyzed. RESULTS: The sensitivity, specificity, positive, and negative predicted values of CrAg-LFA in the serum were 75.0%, 99.6%, 98.2%, and 92.9%, respectively, while those in the BALF were 93.1%, 100.0%, 100.0%, and 97.9%, respectively. The sensitivity of the CrAg-LFA in BALF was significantly higher than that in the serum of the patients in the PC group (P < 0.05). CONCLUSION: CrAg-LFA has a higher diagnostic value for PC when analyzing BALF samples compared to serum samples.


Assuntos
Antígenos de Fungos/sangue , Líquido da Lavagem Broncoalveolar/microbiologia , Criptococose/diagnóstico , Imunoensaio/normas , Infecções Respiratórias/microbiologia , Infecções Oportunistas Relacionadas com a AIDS , Adulto , Idoso , Antígenos de Fungos/imunologia , Criptococose/microbiologia , Feminino , Humanos , Imunoensaio/instrumentação , Imunoensaio/métodos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Infecções Respiratórias/diagnóstico , Sensibilidade e Especificidade
6.
BMC Pregnancy Childbirth ; 20(1): 592, 2020 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-33023512

RESUMO

BACKGROUND: Hypertriglyceridemia-induced acute pancreatitis during pregnancy (HTG-APP) is a rare but severe disease with high maternal-fetal mortality risk, which constitutes a systemic inflammatory process accompanied by thrombosis and bleeding disorders. However, the role of mean platelet volume (MPV) in HTG-APP remains unclear. METHODS: In the retrospective study, we collected 45 patients with HTG-APP as the HTG-APP group and 49 pregnant females with hypertriglyceridemia as the control group. MPV and other relevant variables at onset and remission were collected and compared. RESULTS: MPV were significantly higher in the HTG-APP group than in the control group (P < 0.001), and lower in remission than on onset (P = 0.002). According to the severity of acute pancreatitis, all subjects were classified into mild AP (MAP), moderately severe AP (MSAP), and severe AP (SAP) groups. There was a significant difference in MPV on onset among the three groups (P = 0.048), and the SAP patients had the highest levels of MPV. In addition, only in the SAP group, MPV was lower in remission than on onset (P = 0.010). Logistic regression analyses revealed that MPV was significantly associated with SAP (odds ratio = 2.077, 95% confdence interval, 1.038-4.154; P = 0.039). CONCLUSIONS: These results may indicate an important role of mean platelet volume in evaluating the severity of HTG-APP.


Assuntos
Hipertrigliceridemia/complicações , Volume Plaquetário Médio , Pancreatite/diagnóstico , Complicações na Gravidez/diagnóstico , Adulto , China , Feminino , Humanos , Hipertrigliceridemia/sangue , Pancreatite/sangue , Pancreatite/etiologia , Gravidez , Complicações na Gravidez/sangue , Complicações na Gravidez/etiologia , Estudos Retrospectivos , Índice de Gravidade de Doença , Adulto Jovem
7.
J Int Med Res ; 48(10): 300060520964701, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33086927

RESUMO

OBJECTIVE: We aimed to examine the risk factors and prognosis of nosocomial pneumonia (NP) during extracorporeal membrane oxygenation (ECMO). METHODS: We retrospectively analyzed data of patients who received ECMO at the Affiliated Hangzhou Hospital of Nanjing Medical University between January 2013 and August 2019. The primary outcome was the survival-to-discharge rate. RESULTS: Sixty-nine patients who received ECMO were enrolled, median age 42 years and 26 (37.7%) women; 14 (20.3%) patients developed NP. The NP incidence was 24.7/1000 ECMO days. Patients with NP had a higher proportion receiving veno-venous (VV) ECMO (50% vs. 7.3%); longer ECMO support duration (276 vs. 140 hours), longer ventilator support duration before ECMO weaning (14.5 vs. 6 days), lower ECMO weaning success rate (50.0% vs. 81.8%), and lower survival-to-discharge rate (28.6% vs. 72.7%) than patients without NP. Multivariable analysis showed independent risk factors that predicted NP during ECMO were ventilator support duration before ECMO weaning (odds ratio [OR] = 1.288; 95% confidence interval [CI]: 1.111-1.494) and VV ECMO mode (OR = 10.970; 95% CI: 1.758-68.467). CONCLUSION: NP during ECMO was associated with ventilator support duration before ECMO weaning and VV ECMO mode. Clinicians should shorten the respiratory support duration for patients undergoing ECMO to prevent NP.


Assuntos
Infecção Hospitalar , Oxigenação por Membrana Extracorpórea , Pneumonia Associada a Assistência à Saúde , Adulto , Oxigenação por Membrana Extracorpórea/efeitos adversos , Feminino , Humanos , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento
8.
J Neuroinflammation ; 17(1): 309, 2020 Oct 18.
Artigo em Inglês | MEDLINE | ID: mdl-33070776

RESUMO

BACKGROUND: Endoplasmic reticulum (ER) stress is involved in the progression of Alzheimer's disease (AD). Verbascoside (VB), an active phenylethanoid glycoside that was first isolated from Verbascum sinuatum (the wavyleaf mullein), possesses anti-inflammatory, antioxidative, and anti-apoptotic effects. The purpose of this study was to elucidate the beneficial effects of VB in amyloid ß (Aß)1-42-damaged human glioma (U251) cells and in APPswe/PSEN1dE9 transgenic (APP/PS1) mice. METHODS: U251 cells were co-incubated with 10 µM of Aß1-42 and treated with VB. The protective effects of VB were investigated by using 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyl tetrazolium bromide assay, flow cytometry, fluorescence staining, and transmission electron microscopy. APP/PS1 transgenic mice were treated for 6 weeks with VB. Learning and memory were evaluated using a Morris water maze test. Immunohistochemistry, terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labeling, thioflavin-S staining, and proteomics analysis were performed to study the potential neuroprotective mechanism. Enzyme-linked immunosorbent assays and western blot were performed to analyze altered protein levels of brain lysates in APP/PS1 mice and/or Aß1-42-damaged U251 cells. RESULTS: In Aß1-42-damaged U251 cells, VB significantly improved cell viability, inhibited apoptosis, reduced calcium accumulation and the intracellular concentrations of reactive oxygen species, and improved the morphology of mitochondria and ER. In APP/PS1 mice, 6-week administration of VB significantly improved memory and cognition. VB inhibited apoptosis, reduced the deposition of Aß, reduced the formation of neurofibrillary tangles formed by hyperphosphorylated tau protein, and downregulated the expression levels of 4-hydroxynonenal and mesencephalic astrocyte-derived neurotrophic factor in the brains of APP/PS1 mice. Proteomics analysis of mouse hippocampus suggested that the neuroprotective effect of VB may be related to the reduction of ER stress. This was indicated by the fact that VB inhibited the three branches of the unfolded protein response, thereby attenuating ER stress and preventing apoptosis. CONCLUSIONS: The results confirmed that VB possesses significant neuroprotective effects, which are related to the reduction of ER stress. These findings support the status of VB as a potentially effective treatment for AD and warrant further research.


Assuntos
Doença de Alzheimer/prevenção & controle , Peptídeos beta-Amiloides/toxicidade , Estresse do Retículo Endoplasmático/efeitos dos fármacos , Glucosídeos/uso terapêutico , Fármacos Neuroprotetores/uso terapêutico , Fragmentos de Peptídeos/toxicidade , Fenóis/uso terapêutico , Doença de Alzheimer/induzido quimicamente , Doença de Alzheimer/genética , Doença de Alzheimer/metabolismo , Precursor de Proteína beta-Amiloide/genética , Animais , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Sobrevivência Celular/fisiologia , Relação Dose-Resposta a Droga , Estresse do Retículo Endoplasmático/fisiologia , Glucosídeos/farmacologia , Imunossupressores/farmacologia , Imunossupressores/uso terapêutico , Masculino , Camundongos , Camundongos Transgênicos , Fármacos Neuroprotetores/farmacologia , Fenóis/farmacologia , Presenilina-1/genética
9.
Pak J Med Sci ; 36(6): 1171-1176, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32968375

RESUMO

OBJECTIVE: We aimed to evaluate the incidence, risk factors, and prognosis of bloodstream infections (BSIs) during extracorporeal membrane oxygenation (ECMO) treatment in a Chinese population. METHODS: Patients receiving ECMO treatment from January 2013 to August 2019 were retrospectively studied. The incidence of BSIs was calculated. The clinical characteristics between patients with a BSI (BSI group) and without a BSI (non-BSI group). RESULTS: Among 69 included patients, 19 (27.5%) developed at least one BSI. Gram-negative bacteria (73.7%) were mainly responsible for the BSIs, with Klebsiella pneumoniae (6/19, 31.5%) ranking as the top related pathogen. The BSI group had a greater proportion of methicillin-resistant Staphylococcus aureus (MRSA) prophylactic regimens (52.6% vs. 26.0%, P = 0.036), a higher pre-ECMO Sequential Organ Failure Assessment (SOFA) score (11 vs. 8, P = 0.008), more applications of continuous renal replacement therapy (CRRT) during ECMO (63.1% vs. 36.1%, P = 0.042). Longer ECMO support duration, period of ventilator use before ECMO weaning and hospital stay were observed in the BSI group. The SOFA score (OR: 1.174; 95% CI: 1.039-1.326; P = 0.010) was an independent risk factor for BSIs. CONCLUSION: BSIs during ECMO therapy frequently involve Gram-negative bacteria. Stringent care and monitoring should be provided for patients with high SOFA scores.

10.
J Int Med Res ; 48(6): 300060520929167, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32527185

RESUMO

OBJECTIVE: Non-small cell lung cancer (NSCLC) accounts for approximately 80% of all lung cancers, but its pathogenesis has not been fully elucidated. Therefore, it is valuable to explore the pathogenesis of NSCLC to improve diagnosis and identify novel treatment biomarkers. METHODS: Circular (circ)RNA, micro (mi)RNA, and gene expression datasets of NSCLC were analyzed to identify those that were differentially expressed between tumor and healthy tissues. Common genes were found and pathway enrichment analyses were performed. Survival analysis was used to identify hub genes, and their level of methylation and association with immune cell infiltration were analyzed. Finally, an NSCLC circRNA-miRNA-mRNA network was constructed. RESULTS: Eight miRNAs and 211 common genes were identified. Gene ontology and Kyoto Encyclopedia of Genes and Genomes analyses revealed that cell projection morphogenesis, blood vessel morphogenesis, muscle cell proliferation, and synapse organization were enriched. Ten hub genes were found, of which the expression of DTL and RRM2 was significantly related to NSCLC patient prognosis. Significant methylation changes and immune cell infiltration correlations with DTL and RRM2 were also detected. CONCLUSIONS: hsa_circ_0001947/hsa-miR-637/RRM2 and hsa_circ_0072305/hsa-miR-127-5p/DTL networks were constructed, and identified molecules may be involved in the occurrence and development of NSCLC.


Assuntos
Biomarcadores Tumorais/metabolismo , Carcinoma Pulmonar de Células não Pequenas/genética , Regulação Neoplásica da Expressão Gênica , Redes Reguladoras de Genes , Neoplasias Pulmonares/genética , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma Pulmonar de Células não Pequenas/patologia , Biologia Computacional , Conjuntos de Dados como Assunto , Perfilação da Expressão Gênica , Humanos , Pulmão/patologia , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/patologia , MicroRNAs/metabolismo , Prognóstico , Mapeamento de Interação de Proteínas , Mapas de Interação de Proteínas/genética , RNA Circular/metabolismo , RNA Mensageiro/metabolismo , Análise de Sobrevida
11.
Mol Med Rep ; 20(5): 4723-4730, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31702024

RESUMO

The present study aimed to evaluate the antimicrobial activity and the possible mechanisms of activity of polypeptide­enriched Gastrodia elata extracts (GEP) against the gram­negative bacteria Escherichia coli and Pseudomonas aeruginosa, the gram­positive bacterium Staphylococcus aureus and the fungus Candida albicans. The antimicrobial activity of GEP was first confirmed by determining the minimum inhibitory concentration by growth curve analysis. GEP was found to damage the cell wall and membrane of the microorganisms tested, as revealed by the morphological changes visible through scanning electron microscopy, and by the observed leakage of alkaline phosphatase and ß­galactosidase from cells. GEP was demonstrated to perturb the metabolism of the microorganisms, especially the tricarboxylic acid cycle, as indicated by the reduced intracellular activity of succinate dehydrogenase, malate dehydrogenase and ATPases, including the Na+/K+­ATPase and the Ca2+­ATPase. In addition, GEP caused the leakage of the genetic material of the bacteria and the fungus, as indicated by the increased OD260. The results of the present study indicated that GEP may exert its antimicrobial activity by damaging cell walls and membranes, causing the leakage of genetic material, and by perturbing cellular metabolism.


Assuntos
Anti-Infecciosos , Peptídeos Catiônicos Antimicrobianos , Bactérias/metabolismo , Candida albicans/metabolismo , Gastrodia/química , Proteínas de Plantas , Anti-Infecciosos/química , Anti-Infecciosos/metabolismo , Anti-Infecciosos/farmacologia , Peptídeos Catiônicos Antimicrobianos/química , Peptídeos Catiônicos Antimicrobianos/metabolismo , Peptídeos Catiônicos Antimicrobianos/farmacologia , Proteínas de Bactérias/metabolismo , Membrana Celular/metabolismo , Parede Celular/metabolismo , Proteínas Fúngicas/metabolismo , Proteínas de Plantas/química , Proteínas de Plantas/metabolismo , Proteínas de Plantas/farmacologia
12.
Future Microbiol ; 14: 839-846, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31373210

RESUMO

Aim: The primary objective of this study was to evaluate the effects of polypeptide-enriched Gastrodia elata extracts (GE) on vulvovaginal candidiasis (VVC). Materials & methods: A VVC model induced by Candida albicans (C. albicans) infection was successfully developed in BALB/c mice. After treatment, the colony-forming unit (CFU) of vaginal lavage was measured by plating. The extent of the inflammatory response was assessed by hematoxylin-eosin (H&E) staining and enzyme-linked immunosorbent assay (ELISA). Results: GE had an inhibitory effect on the proliferation of C. albicans and inflammatory reaction. Meanwhile, it had a potentially beneficial effect on the growth of Lactobacillus. Conclusion: These results showed the potential application of GE as an antifungal agent in VVC treatment.


Assuntos
Candida albicans/efeitos dos fármacos , Candidíase Vulvovaginal/tratamento farmacológico , Gastrodia/química , Peptídeos/farmacologia , Peptídeos/uso terapêutico , Animais , Antifúngicos/química , Antifúngicos/farmacologia , Antifúngicos/uso terapêutico , Candida albicans/crescimento & desenvolvimento , Candidíase Vulvovaginal/sangue , Candidíase Vulvovaginal/microbiologia , Candidíase Vulvovaginal/patologia , Modelos Animais de Doenças , Feminino , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Inflamação/patologia , Interleucinas/sangue , Interleucinas/metabolismo , Camundongos Endogâmicos BALB C , Peptídeos/química , Resultado do Tratamento , Vagina/metabolismo , Vagina/microbiologia , Vagina/patologia
13.
Int J Mol Med ; 43(2): 956-966, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30569175

RESUMO

Due to its complex pathogenesis, the prevention and therapization of Alzheimer's disease (AD) remains a serious challenge. Crocin, the main compound isolated from Crocus sativus L., demonstrates various pharmacological activities including anti­apoptotic properties. The present study investigated the neuroprotective effect of crocin and the underlying mechanisms. In l­glutamate­damaged HT22 cells, 3­h crocin pretreatment strongly enhanced the HT22 cell viability, reduced the apoptotic rate, mitigated mitochondrial dysfunction, suppressed intracellular reactive oxygen species (ROS) accumulation and Ca2+ overload compared with untreated cells. Additionally, crocin significantly decreased the expression levels of Bax, Bad and cleaved caspase­3 and increased the expression levels of B­cell lymphoma­extra large, phosphorylated (P­) protein kinase B and P­mammalian target of rapamycin compared with untreated cells. In mice with AD induced by d­galactose and aluminum trichloride, crocin substantially improved the cognition and memory abilities of the mice as measured by their coordination of movement in an open field test, and reduced their escape time in the Morris water maze test compared with untreated mice. Biochemical analysis confirmed that crocin was able to reduce the Aß1­42 content in the mouse brains, increase the levels of glutathione peroxidase, superoxide dismutase, acetylcholine and choline acetyltransferase, and reduce the levels of ROS and acetylcholinesterase in the serum, cerebral cortex and hypothalamus compared with untreated mice. Immunohistochemical analysis demonstrated that crocin reduced Aß1­42 deposition in the hippocampus of the brains of treated mice compared with untreated mice. In conclusion, crocin demonstrates good prospects in the treatment of AD through the oxidative stress­associated apoptosis signaling pathway.


Assuntos
Doença de Alzheimer/metabolismo , Antioxidantes/metabolismo , Carotenoides/farmacologia , Fármacos Neuroprotetores/farmacologia , Estresse Oxidativo/efeitos dos fármacos , Doença de Alzheimer/patologia , Doença de Alzheimer/psicologia , Animais , Apoptose/efeitos dos fármacos , Cálcio/metabolismo , Carotenoides/química , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Cognição , Modelos Animais de Doenças , Ácido Glutâmico/farmacologia , Camundongos , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Fármacos Neuroprotetores/química , Células Piramidais/efeitos dos fármacos , Células Piramidais/metabolismo , Espécies Reativas de Oxigênio/metabolismo
14.
Food Funct ; 7(4): 2006-15, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27008597

RESUMO

Membranous glomerulonephritis (MGN) is a common pathogenesis of nephritic syndrome in adult patients. Nuclear factor kappa B (NF-κB) serves as the main transcription factor for the inflammatory response mediated nephropathy. Cordyceps militaris, containing various pharmacological components, has been used as a kind of crude drug and folk tonic food for improving immunity and reducing inflammation. The current study aims to investigate the renoprotective activity of Cordyceps militaris aqueous extract (CM) in the cationic bovine serum albumin (C-BSA)-induced rat model of membranous glomerulonephritis. Significant renal dysfunction was observed in MGN rats; comparatively, 4-week CM administration strongly decreased the levels of 24 h urine protein, total cholesterol, triglyceride, blood urea nitrogen and serum creatinine, and increased the levels of serum albumin and total serum protein. Strikingly, recovery of the kidney histological architecture was noted in CM-treated MGN rats. A significant improvement in the glutathione peroxidase and superoxide dismutase levels, and a reduced malondialdehyde concentration were observed in the serum and kidney of CM-treated rats. Altered levels of inflammatory cytokines including interleukins, monocyte chemoattractant protein-1, intercellular adhesion molecule 1, vascular adhesion molecule 1, tumor necrosis factor-α, 6-keto-prostaglandin F1α, and nuclear transcriptional factor subunit NF-κB p65 reverted to normal levels upon treatment with CM. The present data suggest that CM protects rats against membranous glomerulonephritis via the normalization of NF-κB activity, thereby inhibiting oxidative damage and reducing inflammatory cytokine levels, which further provide experimental evidence in support of the clinical use of CM as an effective renoprotective agent.


Assuntos
Fatores Biológicos/administração & dosagem , Cordyceps/química , Carpóforos/química , Glomerulonefrite Membranosa/tratamento farmacológico , Rim/imunologia , NF-kappa B/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Animais , Glomerulonefrite Membranosa/imunologia , Glomerulonefrite Membranosa/metabolismo , Humanos , Rim/efeitos dos fármacos , Masculino , NF-kappa B/genética , Ratos , Ratos Wistar , Transdução de Sinais/efeitos dos fármacos , Superóxido Dismutase/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
15.
Mol Med Rep ; 12(3): 4370-4375, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26130140

RESUMO

The echinoderm microtubule associated protein like 4­anaplastic lymphoma kinase (EML4­ALK) fusion is almost mutually exclusive to epidermal growth factor receptor (EGFR) or K­RAS mutation in non­small cell lung cancer (NSCLC), and it is extremely rare for patients to exhibit both mutations. The present study reported the case of a 71-year­old female diagnosed with adenocarcinoma, exhibiting mutations in EGFR and EML4­ALK. The present study treated this patient with EGFR­TK inhibitors, as the first line therapy, and gefitinib therapy revealed a good response until now. In addition, previously reported cases and associated literature were reviewed. The present study provided a greater understanding of the molecular biology and optimal treatment for patients with NSCLC with >1 driver mutation.


Assuntos
Adenocarcinoma/diagnóstico por imagem , Neoplasias Ósseas/diagnóstico por imagem , Receptores ErbB/genética , Neoplasias Pulmonares/diagnóstico por imagem , Receptores Proteína Tirosina Quinases/genética , Adenocarcinoma/genética , Adenocarcinoma/secundário , Idoso , Quinase do Linfoma Anaplásico , Neoplasias Ósseas/genética , Neoplasias Ósseas/secundário , Análise Mutacional de DNA , Feminino , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patologia , Proteínas de Fusão Oncogênica/genética , Radiografia , Translocação Genética
16.
J Thorac Dis ; 5(5): E182-4, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24255788

RESUMO

Tracheobronchopathia osteochondroplastica (TO) was diagnosed in a 52-year-old male with prolonged dry cough. Computerized tomography (CT) demonstrated that there were multiple calcified nodules in the anterolateral wall of trachea, sparing the posterior tracheal membrane. Fiberoptic bronchoscopy (FOB) showed that submucosal nodules protruded into the airway lumen. Histopathological exam found ossification and cartilage in the submucosa. TO is a scarce benign disorder, characterized by submucosal bony and cartilaginous nodules. The clinical manifestation is undistinguished and treatment is symptomatically dependent. FOB is a definitive diagnostic procedure. The characteristics of FOB finding are described as beaded, spiculate, rock garden, or cobble-stoned like nodules, which projected into the tracheobronchus lumen, sparing the posterior wall. Histopathological exam might re-confirm the diagnosis, finding ossification and cartilage in the submucosa of airway. Awareness of TO is significantly important, especially in chronic cough patients with special CT image, and FOB should be performed to confirm the diagnosis.

17.
Int J Biol Macromol ; 51(5): 749-55, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22800731

RESUMO

The aim of the present study is to investigate the antidiabetic properties of oligosaccharides of Ophiopogonis japonicus (OOJ) in experimental type 2 diabetic rats. OOJ was administered orally in doses of 225 and 450 mg/kg body weight to high-fat diet and low-dose streptozotocin (STZ)-induced type 2 diabetic rats for 3 weeks. The results showed that OOJ treatment could increase body weight, decrease organ related weights of liver and kidney, reduce fasting blood glucose level, and improve oral glucose tolerance in diabetic rats. Moreover, increased glycogen content in liver and skeletal muscle, reduced urinary protein excretion, higher hepatic GCK enzyme activity, lower hepatic PEPCK enzyme activity, enhanced GLP-1 level, decreased glucagon level and alleviated histopathological changes of pancreas occurred in OOJ-treated diabetic rats by comparison with untreated diabetic rats. This study demonstrates, for the first time to our knowledge, that OOJ exerts remarkable antidiabetic effect in experimental type 2 diabetes mellitus, thus justifying its traditional usage.


Assuntos
Diabetes Mellitus Experimental/tratamento farmacológico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Hipoglicemiantes/farmacologia , Oligossacarídeos/farmacologia , Ophiopogon/química , Animais , Glicemia/metabolismo , Peso Corporal/efeitos dos fármacos , Diabetes Mellitus Experimental/sangue , Diabetes Mellitus Experimental/metabolismo , Diabetes Mellitus Experimental/patologia , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/patologia , Dieta Hiperlipídica/efeitos adversos , Jejum , Glucagon/sangue , Peptídeo 1 Semelhante ao Glucagon/sangue , Teste de Tolerância a Glucose , Glicogênio/metabolismo , Hipoglicemiantes/uso terapêutico , Fígado/efeitos dos fármacos , Fígado/metabolismo , Masculino , Músculo Esquelético/efeitos dos fármacos , Músculo Esquelético/metabolismo , Oligossacarídeos/uso terapêutico , Tamanho do Órgão/efeitos dos fármacos , Proteinúria/tratamento farmacológico , Ratos , Ratos Sprague-Dawley
18.
Int J Biol Macromol ; 49(2): 194-200, 2011 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-21549746

RESUMO

In this study, oligosaccharides extracted from Ophiopogon japonicus vinegar (OOV) by alcoholic and acetic acid fermentation with water extracts from Radix Ophiopogon and oligosaccharides extracted from Radix Ophiopogonis (OOJ) were investigated. Characterization of the extracts indicated that OOV are proteoglycans, whereas OOJ are not. Moreover, compared with OOJ, monosaccharide compositions of OOV only include fructose and galactose and not glucose. MALDI-TOF-mass spectrometric results showed that the molecular weight of OOV was smaller after fermentation. Changes in the characteristics of OOV would inevitably lead to changes in its hypoglycemic properties. The OOV inhibition activity against α-glucosidase was stronger than that of OOJ. The inhibition activity became stronger with higher dosages of OOV. The hypoglycemic effect of OOV on alloxan-induced diabetic mice was stronger than that of OOJ. More important, the ability of OOV to reduce damage on islets in diabetic mice was stronger than that of OOJ. Overall, alcoholic and acetic acid fermentation improved the hypoglycemic activity of OOJ.


Assuntos
Glicemia/efeitos dos fármacos , Diabetes Mellitus Experimental/patologia , Fermentação , Oligossacarídeos/química , Oligossacarídeos/farmacologia , Ophiopogon/química , Extratos Vegetais/farmacologia , Animais , Feminino , Inibidores de Glicosídeo Hidrolases , Hipoglicemiantes/isolamento & purificação , Hipoglicemiantes/farmacologia , Ilhotas Pancreáticas/efeitos dos fármacos , Ilhotas Pancreáticas/patologia , Camundongos , Oligossacarídeos/isolamento & purificação , Extratos Vegetais/química , Extratos Vegetais/isolamento & purificação , Ratos , Ratos Sprague-Dawley
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