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Klippel-Trenaunay syndrome (KTS) is a rare congenital vascular disorder characterized by wine stains, abnormal tissue and bone growth, and vascular malformations. Genital involvement is uncommon. We report a case of a 12-year-old female with KTS who experienced recurrent profuse vaginal bleeding and provide a comprehensive literature review on KTS cases with genital involvement. The literature reports 7 cases, mainly in individuals aged 25 to 45, presenting with uncontrollable vaginal bleeding and anemia. Endovascular interventions were the primary treatment, although surgery was necessary in some cases. Recent studies have identified a potential association between KTS and the PIK3CA gene mutation, offering insights for pharmacological treatment.
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The primary objective of this systematic review with meta-analysis is to methodically discern and compare the impact of diverse warm-up strategies, including both static and dynamic stretching, as well as post-activation potentiation techniques, on the immediate performance of gymnasts. Adhering to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, this paper evaluated studies that examined the gymnasts' performance after different warm-up strategies namely stretching (static [SS] or dynamic), vibration platforms (VP) or post-activation, in comparison to control conditions (e.g., mixed warm-up routines; no warm-up). The principal outcomes were centered on technical performance metrics (e.g., split, gymnastic jumps) and physical performance metrics (e.g., squat jump, countermovement jump, drop jump, balance, range of motion). Methodological assessments of the included studies were conducted using the Downs and Black Checklist. From the initial search across PubMed, Scopus, and the Web of Science databases, a total of 591 titles were retrieved, and 19 articles were ultimately incorporated in the analysis. The results revealed a non-significant differences (p > 0.05) between the SS condition and control conditions in squat jump performance, countermovement jump and gymnastic technical performance (e.g., split; split jump). Despite the difference in warm-up strategies and outcomes analyzed, the results suggest that there is no significant impairment of lower-limb power after SS. Additionally, technical elements dependent on flexibility appear to be enhanced by SS. Conversely, dynamic stretching and VP seem to be more effective for augmenting power-related and dynamic performance in gymnasts.
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Exercícios de Alongamento Muscular , Exercício de Aquecimento , Humanos , Ginástica/fisiologia , Extremidade Inferior , Amplitude de Movimento Articular/fisiologiaRESUMO
OBJECTIVES: Metformin is the basic drug for treating diabetes, and the plateau hypoxic environment is an important factor affecting the pharmacokinetics of metformin, but there have been no reports of metformin pharmacokinetic parameters in patients with diabetes mellitus type 2 (T2DM) in the high-altitude hypoxic environment. This study aims to investigate the effect of the hypoxic environment on the pharmacokinetics and assess the efficacy and safety of metformin administration in patients with Type 2 diabetes mellitus (T2DM). METHODS: A total of 85 patients with T2DM taking metformin tablets in the plateau group (n=32, altitude: 1 500 m) and control group (n=53, altitude: 3 800 m) were enrolled according to the inclusion and exclusion criteria, and 172 blood samples were collected in the plateau group and the control Group. A ultra-performance liquid chromatography/tandem mass spectrometry (UFLC-MS/MS) method was established to determine the blood concentration of metformin, and Phoenix NLME software was used to establish a model of pharmacokinetics of metformin in the Chinese T2DM population. The efficacy and serious adverse effects of metformin were compared between the 2 groups. RESULTS: The population pharmacokinetic modeling results showed that plateau hypoxia and age were the main covariates for model building, and the pharmacokinetic parameters were significantly different between the plateau and control groups (all P<0.05), including distribution volume (V), clearance (CL), elimination rate constant (Ke), half-life(T1/2), area under the curve (AUC), time to reach maximum concentration (Tmax). Compared with the control group, AUC was increased by 23.5%, Tmax and T1/2 were prolonged by 35.8% and 11.7%, respectively, and CL was decreased by 31.9% in the plateau group. The pharmacodynamic results showed that the hypoglycaemic effect of T2DM patients in the plateau group was similar to that in the control group, the concentration of lactic acid was higher in the plateau group than that in the control group, and the risk of lactic acidosis was increased after taking metformin in the plateau population. CONCLUSIONS: Metformin metabolism is slowed down in T2DM patients in the hypoxic environment of the plateau; the glucose-lowering effect of the plateau is similar, and the attainment rate is low, the possibility of having serious adverse effects of lactic acidosis is higher in T2DM patients on the plateau than on the control one. It is probably suggested that patients with T2DM on the plateau can achieve glucose lowering effect by extending the interval between medication doses and enhancing medication education to improve patient compliance.
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Acidose Láctica , Diabetes Mellitus Tipo 2 , Metformina , Humanos , Diabetes Mellitus Tipo 2/tratamento farmacológico , Metformina/uso terapêutico , Espectrometria de Massas em Tandem , Hipóxia , GlucoseRESUMO
BACKGROUND: Malignant tumors have become the most dangerous disease in recent years. Chemotherapy is the most effective treatment for this disease; however, the problem of drug resistance has become even more common, which leads to the poor prognosis of patients suffering from cancers. Thus, necessary measures should be taken to address these problems at the earliest. Many studies have demonstrated that drug resistance is closely related to the abnormal expressions of long non-coding RNAs (lncRNAs). METHODS AND RESULTS: This review aimed to summarize the molecular mechanisms underlying the association of lncRNAs and the development of drug resistance and to find potential strategies for the clinical diagnosis and treatment of cancer drug resistance. Studies showed that lncRNAs can regulate the expression of genes through chromatin remodeling, transcriptional regulation, and post-transcriptional processing. Furthermore, lncRNAs have been reported to be closely related to the occurrence of malignant tumors. In summary, lncRNAs have gained attention in related fields during recent years. According to previous studies, lncRNAs have a vital role in several different types of cancers owing to their multiple mechanisms of action. Different mechanisms have different functions that could result in different consequences in the same disease. CONCLUSIONS: LncRNAs closely participated in cancer drug resistance by regulating miRNA, signaling pathways, proteins, cancer stem cells, pro- and ant-apoptosis, and autophagy. lncRNAs can be used as biomarkers of the possible treatment target in chemotherapy, which could provide solutions to the problem of drug resistance in chemotherapy in the future.
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Resistencia a Medicamentos Antineoplásicos/genética , Regulação Neoplásica da Expressão Gênica/genética , RNA Longo não Codificante/genética , Biomarcadores Tumorais/genética , Resistência a Múltiplos Medicamentos/genética , Expressão Gênica/genética , Humanos , MicroRNAs/genética , Neoplasias/genética , RNA Longo não Codificante/metabolismoRESUMO
Abnormal activation of the nuclear factor-kappa B (NF-κB) signaling pathway is closely implicated in triple-negative breast cancer growth, metastasis, and tumor immune escape. In this study, the anti-cancer effects of icariin, a natural flavonol glycoside, toward breast cancer cells and the underlying mechanisms were investigated. This investigation showed that icariin selectively inhibited proliferation and triggered apoptosis in breast cancer cells in a concentration- and time-dependent manner, but exhibited little cytotoxicity in normal breast cells. Moreover, icariin induced cell apoptosis via a mitochondria-mediated pathway, as indicated by the upregulated ratio of Bax/Bcl-2 and reactive oxygen species induction. Importantly, icariin impaired the activation of the NF-κB/EMT pathway, as evidenced by upregulation of SIRT6, resulting in inhibition of migration and invasion of breast cancer cells. Additionally, oss-128167, an inhibitor of SIRT6, dramatically attenuated anti-migration and anti-invasion effects of icariin. Transcriptomic analysis verified that impairment of NF-κB led to the selective function of icariin in breast cancer cells. Notably, icariin exhibited a significant tumor growth inhibition and anti-pulmonary metastasis effect in a tumor mouse model of MDA-MB-231 and 4T1 cells by regulating the tumor immunosuppressive microenvironment. Together, these results showed that icariin could effectively trigger apoptosis and inhibit the migration of breast cancer cells via the SIRT6/NF-κB signaling pathway, suggesting that icariin might serve as a potential candidate drug for the treatment of breast cancer.
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Apoptose/efeitos dos fármacos , Medicamentos de Ervas Chinesas/farmacologia , Flavonoides/farmacologia , NF-kappa B/metabolismo , Oxirredução/efeitos dos fármacos , Sirtuínas/metabolismo , Neoplasias de Mama Triplo Negativas/metabolismo , Animais , Linhagem Celular Tumoral , Movimento Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Modelos Animais de Doenças , Medicamentos de Ervas Chinesas/química , Feminino , Flavonoides/química , Perfilação da Expressão Gênica , Humanos , Camundongos , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Modelos Biológicos , Metástase Neoplásica , Estadiamento de Neoplasias , Espécies Reativas de Oxigênio/metabolismo , Transcrição Gênica , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Neoplasias de Mama Triplo Negativas/etiologia , Neoplasias de Mama Triplo Negativas/patologia , Ensaios Antitumorais Modelo de XenoenxertoRESUMO
Lung cancer is a common malignant disease, nearly 2.09 million new patients occurred last year. Approximately 85% of the patients are classified as non-small-cell lung cancer (NSCLC). It is therefore important to identify new diagnostic and prognostic biomarkers for the early detection of this disease. The presented study identifies biomarkers in the serum of NSCLC patients. The expression of 274 cytokines was measured by a novel antibody array methodology and ELISA was applied to validate the array results. The levels of MIP-1 α, IL-8, MIP-1 ß, Resistin, GDF-15, HGF, CA125, FLRG, VCAM-1, DKK-3, sTNF-R1, CTACK, Acrp30, CXCL-16 and LYVE-1 were significantly higher in serum from NSCLC patients, while the level of TIMP-2 and IGFBP-6 were lower. More importantly, the validation supported the result of the antibody array. The result of the antibody array indicates that these cytokines might be novel auxiliary biomarkers in the diagnosis and prognosis of NSCLC.
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Biomarcadores Tumorais/sangue , Carcinoma Pulmonar de Células não Pequenas/sangue , Carcinoma Pulmonar de Células não Pequenas/diagnóstico , Citocinas/sangue , Peptídeos e Proteínas de Sinalização Intercelular/sangue , Neoplasias Pulmonares/sangue , Neoplasias Pulmonares/diagnóstico , Adulto , Anticorpos , Biomarcadores Tumorais/genética , Carcinoma Pulmonar de Células não Pequenas/genética , Carcinoma Pulmonar de Células não Pequenas/patologia , Linhagem Celular Tumoral , Quimiocina CCL3/sangue , Quimiocina CCL3/genética , Citocinas/genética , Regulação para Baixo , Feminino , Humanos , Imuno-Histoquímica , Proteína 6 de Ligação a Fator de Crescimento Semelhante à Insulina/sangue , Proteína 6 de Ligação a Fator de Crescimento Semelhante à Insulina/genética , Peptídeos e Proteínas de Sinalização Intercelular/genética , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Análise Serial de Proteínas , Reação em Cadeia da Polimerase em Tempo Real , Inibidor Tecidual de Metaloproteinase-2/sangue , Inibidor Tecidual de Metaloproteinase-2/genética , Regulação para CimaRESUMO
This study was to investigate the effect of methotrexate in combination therapy by the characteristic cytokine in Th17 cells and the frequency of Tregs, which involved in the induction and pathological progress of rheumatoid arthritis (RA). The collagen-induced arthritis rats were treated with methotrexate + prednisone, methotrexate + disease-modifying rheumatic drugs (DMARDs) and methotrexate + TNFi, respectively. The following parameters were observed to evaluate three treatments: the frequency and function of Th17 cells and Tregs, the scores of X-rays, H&E staining and immunohistochemistry. For rats starting methotrexate + prednisone (low doses), the frequency and suppressive function of Th17 cells decreased while the frequency of Tregs increased, which were the same in methotrexate + TNFi. Immunohistochemical in the pathological sections of ankle joint showed the same results. The effect of methotrexate + DMARDs treatment was slightly inferior to the other combination therapies. In summary, rats treated with methotrexate + prednisone can achieve high level of Tregs and low level of Th17 cells and IL-17. Low doses of glucocorticoid suggesting a critical role in the pathogenesis of rheumatoid arthritis may have the similar effect as DMARDs.
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Antirreumáticos/farmacologia , Artrite Experimental/induzido quimicamente , Artrite Experimental/tratamento farmacológico , Colágeno/farmacologia , Metotrexato/farmacologia , Animais , Artrite Reumatoide/tratamento farmacológico , Terapia Combinada/métodos , Quimioterapia Combinada/métodos , Glucocorticoides/farmacologia , Masculino , Prednisona , Ratos , Ratos Sprague-Dawley , Linfócitos T Reguladores/efeitos dos fármacos , Células Th17/efeitos dos fármacosRESUMO
Modern lifestyle factors (high-caloric food rich in fat) and daily chronic stress are important risk factors for metabolic disturbances. Increased hypothalamic-pituitary-adrenal (HPA) axis activity and the subsequent excess production of glucocorticoids (GCs) in response to chronic stress (CS) leads to increases in metabolic complications, such as type 2 diabetes and insulin resistance (IR). Melatonin (MLT), which protects several regulatory components of the HPA axis from GC-induced deterioration, might improve glucose homeostasis. Piromelatine is a melatonin receptor-1/melatonin receptor-2 (MT1/MT2) agonist with high affinity for MLT receptors and a longer duration of action than MLT. The objective of the present study was to explore the potential effects of piromelatine on glucose and lipid metabolism and insulin sensitivity in rats with IR induced by a high-fat diet combined with CS (CF). The results showed that piromelatine prevented the suppression of body weight gain and energy intake induced by CF and normalized CF-induced hyperglycemia and homeostasis model assessment-IR index, which suggests that piromelatine prevented whole-body IR. Piromelatine also prevented CF-induced dysregulation of genes involved in glucose and lipid metabolism, including proinflammatory cytokines, in adipose tissue. In addition, piromelatine also attenuated CF-induced excess free corticosterone release, increased glucocorticoid receptor expression, and decreased 11ß-hydroxysteroid dehydrogenase-1 expression, suggesting that piromelatine might ameliorate impaired glucose metabolism and prevent IR by normalizing HPA-axis functions. In conclusion, piromelatine might be a novel therapeutic agent for glucose intolerance and IR.
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Glicemia/efeitos dos fármacos , Dieta Hiperlipídica/efeitos adversos , Glucose/antagonistas & inibidores , Indóis/uso terapêutico , Piranos/uso terapêutico , Receptores de Melatonina/agonistas , Estresse Psicológico/tratamento farmacológico , Animais , Glicemia/metabolismo , Doença Crônica , Glucose/metabolismo , Indóis/farmacologia , Masculino , Piranos/farmacologia , Ratos , Ratos Wistar , Receptores de Melatonina/metabolismo , Estresse Psicológico/metabolismoRESUMO
The Orf virus 050 (ORFV050) gene is located in the core region of the ORFV genome. It is similar to Vaccinia virus (VV) Copenhagen L4R, and encodes the DNA-binding virion core protein VP8, which has structures similar to the VV P25K core protein and may undergo similar proteolytic processing during virus assembly. Three conserved Ala-Gly-X motifs at putative cleavage sites were identified in ORFV050. To investigate the proteolysis of ORFV050 and its participation in viral assembly, full-length and site-directed mutant ORFV050 recombinant proteins were constructed and expressed. Two distinct protein bands of 28.5 and 25 kDa were detected in the infected cells using anti-ORFV050 polyclonal antiserum. A potential cleavage site was identified at amino acids 30-32 of ORFV050. Mutation of AG/A to (R) in ORFV050 abolished the process of proteolysis. ORFV050 is a late gene synthesized during viral replication in the host cytoplasm. According to these results, we conclude that ORFV050 undergoes proteolysis and plays an important role in viral assembly.
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Genes Virais/genética , Vírus do Orf/enzimologia , Vírus do Orf/genética , Proteólise , Proteínas Virais/genética , Proteínas Virais/isolamento & purificação , Sequência de Aminoácidos , Animais , Anticorpos Antivirais , Linhagem Celular , Citoplasma/virologia , Proteínas de Ligação a DNA/genética , Proteínas de Ligação a DNA/metabolismo , Dipeptídeos , Ectima Contagioso/virologia , Regulação Viral da Expressão Gênica , Peso Molecular , Mutação , Vírus do Orf/efeitos dos fármacos , Vírus do Orf/fisiologia , Proteínas Recombinantes de Fusão/genética , Rifampina/farmacologia , Alinhamento de Sequência , Análise de Sequência , Ovinos , Vaccinia virus/genética , Proteínas do Core Viral/genética , Proteínas do Core Viral/fisiologia , Proteínas Estruturais Virais/genética , Proteínas Estruturais Virais/metabolismo , Vírion/metabolismo , Montagem de Vírus/fisiologia , Replicação ViralRESUMO
BACKGROUND: Hepatocellular carcinoma (HCC) is the fifth most prevalent cancer and the second leading cause of cancer-related deaths worldwide. The poor prognosis of HCC is mainly because of its discovery at advanced stages. Because chronic hepatitis B (CHB) accounts for 50-80% HCC occurrence worldwide, and immunity is regarded as an emerging hallmark of cancer, we investigated the predictive role of peripheral immune cells in HCC incidence in CHB patients. METHODS: This investigation collected and analyzed data from 89 CHB patients, 94 primary HCC patients with hepatitis B virus (HBV), 81 primary HCC patients without HBV, 69 normal healthy patients, and 257 CHB patients with at least 3-year regular followup. RESULTS: The results demonstrated that CHB and primary HCC patients had different concentrations of lymphocytes, neutrophils, and monocytes in their peripheral circulation. Further study showed that the peripheral lymphocyte concentration was an independent prognostic factor for HCC incidence in CHB patients during the 3 years of followup. Finally, a predictive HCC incidence model with an AUROC (area under the receiver operating characteristic) of 0.832 was constructed based on the peripheral lymphocyte concentration, serum alpha-fetoprotein (AFP) concentration, and cirrhosis status of CHB patients. CONCLUSIONS: The peripheral lymphocyte concentration was an independent prognostic factor for HCC incidence in CHB patients, and a more accurate predictive model based on peripheral lymphocytes, serum AFP, and cirrhosis status was constructed.
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Carcinoma Hepatocelular/sangue , Progressão da Doença , Hepatite B Crônica/sangue , Neoplasias Hepáticas/sangue , Linfócitos/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Hepatocelular/epidemiologia , Feminino , Humanos , Incidência , Cirrose Hepática/sangue , Neoplasias Hepáticas/epidemiologia , Contagem de Linfócitos , Masculino , Pessoa de Meia-Idade , Monócitos/patologia , Análise Multivariada , Neutrófilos/patologia , Prognóstico , Modelos de Riscos Proporcionais , Adulto Jovem , alfa-Fetoproteínas/metabolismoRESUMO
BACKGROUND: The human epididymis protein 4 (HE4) may have high specificity in the detection of malignant diseases, making the development of an immunoassay for HE4 essential. METHODS: In our study, a fusion gene was constructed encoded with the HE4 protein. This protein was then produced in the bacterial cells (Escherichia coli) and used to immunize mice in order to eventually generate hybridomas specific to HE4. The hybridoma supernatants were then screened, and four positive anti-HE4 cell lines were selected. These cell lines produce monoclonal antibodies against HE4 epitopes, as demonstrated in the Western blot as well as by direct enzyme-linked immunosorbent assay (ELISA). Using the developed antibodies, we successfully identified several good antibody pairs from the hybridomas, which allowed for the development of a sandwich ELISA to measure HE4 levels. By using the HE4 ELISA, we measured HE4 levels of 60 clinical human serum samples. RESULTS: Compared with the Food and Drug Administration (FDA) approved kit (Roche), our results showed a strong positive correlation to those of the FDA-approved kit. CONCLUSIONS: In summary, highly sensitive antibody pairs were screened against HE4, and a sandwich ELISA was developed as an accurate analytical tool for the detection of HE4 in human serum, which could be especially valuable for diagnosing ovarian carcinomas.
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Anticorpos Monoclonais/metabolismo , Ensaio de Imunoadsorção Enzimática/métodos , Neoplasias Ovarianas/sangue , Proteínas/imunologia , Proteínas/metabolismo , Adolescente , Adulto , Idoso , Animais , Anticorpos Monoclonais/imunologia , Especificidade de Anticorpos , Linhagem Celular Tumoral , Feminino , Humanos , Camundongos , Pessoa de Meia-Idade , Sensibilidade e Especificidade , Proteína 2 do Domínio Central WAP de Quatro Dissulfetos , Adulto JovemRESUMO
BACKGROUND: Flow cytometry is a potent tool to dissect the phenotypes and functions of cell subsets by measuring multiple parameters on a single-cell basis. However, intracellular staining may be time consuming and more steps, particularly in cytokines, could be problematic for its use in daily routine or in large cohort testing. Lately, a novel reagent has been developed to perform intracellular staining in one step. The objective of our study was thus to assess this new method in comparison with the reference technique by focusing on CD4+ T-cell subsets such as Th1, Th2, and Th17 cells in clinical samples. METHODS: Peripheral blood was collected from 10 children with aplastic anemia and 10 healthy volunteers and stained using the reference and one-step methods. Different subsets of CD4+ T-cells, which are defined as Th1, Th2 and Th17 cells, were investigated by flow cytometry. The repetitive experiment was designed to study intraassay precision. Correlations were studied using Pearson's correlation coefficient test. RESULTS: When comparing results obtained with the two techniques, no statistical differences between the percentages of Th1, Th2, and Th17 cells were observed. Besides, a nice correlation between percentages of Th1 cells obtained with the two different methods was identified in the global population (r: 0.777, p < 0.01). Likewise, percentages of Th2 cells (r: 0.875, p < 0.01), and Th17 cells (r: 0.886, p < 0.01) were strongly correlated between reference and one-step procedures. Importantly, flow cytometry staining obtained with the one-step method was very robust with a nice intra-assay precision and a better discriminative power and repeatability. CONCLUSIONS: With better staining quality and a shorter realization time, one-step intracellular staining may provide an efficient way for daily routine testing of Th1, Th2 and Th17 cells, as well as for further research.
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Contagem de Linfócitos/métodos , Linfócitos T Auxiliares-Indutores , Estudos de Casos e Controles , Criança , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Coloração e Rotulagem/métodosRESUMO
BACKGROUND: Neutrophil to lymphocyte ratio (NLR) was reported to be an independent easy-to-measure marker for many diseases, while the distribution of NLR in healthy population was not formally studied. So we investigated NLR in healthy people in this study. METHODS: Data include NLR, systolic pressure, diastolic pressure, and body mass index (BMI), which were collected from 3,262 healthy population. Correlations of NLR with variables were analyzed with SPSS16.0. RESULTS: Results demonstrated that NLR was positively associated with age (P < 0.001). The eldest age group possessed the highest NLR and the youngest age group had the lowest NLR. NLR was also slightly positively associated with systolic pressure, diastolic pressure, and BMI (P < 0.001). CONCLUSION: Older people possessed relatively high NLR in healthy population.
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Biomarcadores/análise , Doença/classificação , Linfócitos/patologia , Neutrófilos/patologia , Adulto , Fatores Etários , Idoso , Pressão Sanguínea , Índice de Massa Corporal , Estudos de Casos e Controles , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Adulto JovemRESUMO
PURPOSE: This study compared the effects of individualizing supramaximal interval rowing interventions using anaerobic power reserve (APR [high-intensity interval training (HIIT) prescribed according to individual APR (HIITAPR)]) and power associated with maximal oxygen uptake (WVËO2max [HIIT prescribed based on the individual WVËO2max (HIITW)]) on the homogeneity of physiological and performance adaptations. METHODS: Twenty-four well-trained rowers (age 24.8 [4.3] y, stature 182.5 [3] cm, body mass 86.1 [4.3]) were randomized into interventions consisting of 4 × 30-second intervals at 130%APR (WVËO2max + 0.3 × maximal sprint power) with weekly progression by increasing the number of repetitions per set (5, 6, 7, 8, 9, and 10, from first to sixth session) and the same sets and repetitions with the intensity described as 130% WVËO2max. The work-to-recovery ratio was 1:1 for repetitions and 3 minutes between sets. Responses of aerobic fitness indices, power output, cardiac hemodynamics, locomotor abilities, and time-trial performance were examined. RESULTS: Both HIITAPR and HIITW interventions significantly improved VËO2max, lactate threshold, cardiac hemodynamics, and 2000-m performance, with no between-groups difference in changes over time. However, HIITAPR resulted in a lower interindividual variability in adaptations in VËO2max and related physiological parameters, but this is not the case for athletic performance, which can depend on a multitude of factors beyond physiological parameters. CONCLUSIONS: Results demonstrated that expressing supramaximal interval intensity as a proportion of APR facilitates imposing the same degrees of homeostatic stress and leads to more homogeneous physiological adaptations in maximal variables when compared to prescribing a supramaximal HIIT intervention using WVËO2max. However, lower interindividual variability would be seen in submaximal variables if HIIT interventions were prescribed using WVËO2max.
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Desempenho Atlético , Treinamento Intervalado de Alta Intensidade , Humanos , Adulto Jovem , Adulto , Consumo de Oxigênio/fisiologia , Desempenho Atlético/fisiologia , Exercício Físico/fisiologia , Treinamento Intervalado de Alta Intensidade/métodos , Teste de EsforçoRESUMO
MicroRNAs (miRNAs) are a class of short single-stranded, noncoding RNAs that affect the translation of mRNAs by imperfectly binding to homologous 3'UTRs. Research on miRNAs in ovarian diseases is constantly expanding because miRNAs are powerful regulators of gene expression and cellular processes and are promising biomarkers. miRNA mimics, miRNA inhibitors and molecules targeting miRNAs (antimiRs) have shown promise as novel therapeutic agents in preclinical development. Granulosa cells (GCs) are supporting cells for developing oocytes in the ovary. GCs regulate female reproductive health by producing sex hormones and LH receptors. Increasing research has reported the relevance of miRNAs in GC pathophysiology. With in-depth studies of disease mechanisms, there are an increasing number of studies on the biomolecular pathways of miRNAs in gynecology and endocrinology. In the present review, we summarize the different functions of GC-related microRNAs in various ovarian disorders, such as polycystic ovary syndrome, premature ovarian insufficiency, premature ovarian failure and ovarian granulosa cell tumors.
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Red swamp crayfish, Procambarus clarkii, is the most cultured freshwater crayfish species. It attracts significant research attention due to its considerable economic importance. However, the limited availability of genome information has impeded further genetic studies and breeding programs. By utilizing Illumina, PacBio, and Hi-C sequencing technologies, we present a more comprehensive and continuous chromosome-level assembly for P. clarkii than the published one. The final genome size is 4.03 Gb, consisting of 2,358 scaffolds with a N50 of 42.87 Mb. Notably, 3.68 Gb, corresponding to 91.42% of the genome, was anchored to 94 chromosomes. The assembly comprises 70.64% repetitive sequences, including 5.21% tandem repeats and 65.40% transposable elements. Additionally, a total of 4,456 non-coding RNAs and 28,852 protein-coding genes were predicted in the P. clarkii genome, with 96.26% of the genes were annotated. This high-quality genome assembly not only represents a significant improvement for the genome of P. clarkii and provides insights into the unique genome evolution, but also offers valuable information for developing freshwater aquaculture and accelerating genetic breeding.
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Astacoidea , Cromossomos , Genoma , Animais , Astacoidea/genética , Elementos de DNA TransponíveisRESUMO
The effect of roasting and high-pressure homogenization on the quality of yogurt made from peeled walnut kernels was explored in this study. The G' and G'' values of yogurt made from walnuts roasted at high temperatures were reduced. The water-holding capacity and hardness of walnut yogurt were reduced to 47.73% and 24.22 g, respectively. Increasing the homogenization pressure reduced the particle size of the walnut yogurt to 20.50 µm. Homogenized walnut milk at 150 MPa increased the viscosity, hardness, and consistency of yogurt product from 11.71 to 16.74 Pa.s, from 30.01 to 71.63 g and from 283.17 to 455.24 g·s, respectively. The confocal laser scanning microscope observation demonstrated a reduction in the size of fat and protein micelles in the homogenized yogurt samples, resulting in a compact structure. This study will contribute valuable scientific insights to the advancement of plant-based yogurt quality.
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Duodenal stump fistula (DSF) is a serious complication of radical gastrectomy for gastric cancer. Herein, we illustrated an innovative choice for treating duodenal stump fistulas by placing a modified sump drainage through trocar puncture into the DSF-related abscess (DSF-abscess) cavity. We retrospectively analyzed 974 consecutive patients who underwent gastrectomy for gastric cancer between 2011 and 2021. Of these patients, 34 who developed postoperative duodenal stump fistulas postoperatively were enrolled into our study, and their clinical data were retrospectively assessed. From January 2011 to December 2017, 15 patients received conventional treatments (percutaneous catheter drainage, PCD group) known as the traditional percutaneous method, and 19 patients from January 2018 to December 2021 received new treatments (Troca's SD group) consisting of conventional therapies and placement of a modified sump drainage through trocar puncture into DSF-abscess cavity. The demographics, clinical characteristics and treatment outcomes were compared between two groups. Compared with the PCD group, the rates of postoperative complications, duodenostomy creation, subsequent surgery, fistula healing rates of the DSF, and length of postoperative hospital stay were significantly decreased in the Troca SD group. However, there was no significant difference in the abscess recurrence rate and mortality rates. Trocar puncture with a modified sump drainage is an safe, effective, and technically feasible treatment for duodenal stump fistula after radical gastrectomy for gastric cancer. This novel technique should be further investigated using large-scale RCT research.
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BACKGROUND: Haemodynamic instability and hypoxaemia are common and serious threats to the survival of neonates. A growing body of literature indicates that critical care ultrasound has become the optimal evaluation tool for sick neonates. However, few studies have described sonographic characteristics of haemodynamics systematically in the neonates with critical illness. This protocol describes a prospective observational cohort study aimed at (1) characterising the sonographic characteristics of the neonates with critical diseases; and (2) assessing the mortality, significant morbidity, utility of vasoactive medications, fluid resuscitation, duration of ventilation, etc. METHODS AND ANALYSIS: This is a single-centre, prospective and observational study conducted in Chengdu Women's and Children's Central Hospital from 1 December 2022 to 31 December 2027. Neonates admitted to the neonatal intensive care unit will be recruited. After inclusion, the neonates will undergo the neonatal critical care ultrasound. The data collected via case report forms include clinical variables and sonographic measures. The primary outcome is to identify the sonographic characteristics of sick neonates with different diseases, and the secondary outcome is to describe the mortality, significant morbidity, utility of vasoactive medications, fluid resuscitation and duration of ventilation. DISCUSSION: Our study provided an organised neonatal critical care ultrasound workflow, which can be applied in practice. Accordingly, this study will first set up large data on the sonographic description of the neonates with critical illness, which can help to understand the pathophysiology of the critical illness, potentially titrating the treatment. TRIAL REGISTRATION NUMBER: Chinese Clinical Trial Registry (ChiCTR2200065581; https://www.chictr.org.cn/com/25/showproj.aspx?proj=184095).
Assuntos
Estado Terminal , Unidades de Terapia Intensiva Neonatal , Recém-Nascido , Criança , Humanos , Feminino , Estudos Prospectivos , Estado Terminal/terapia , Estudos de Coortes , Cuidados Críticos , Estudos Observacionais como AssuntoRESUMO
Microplastics (MPs) are ubiquitous in the environment that may cause negative impacts on the aquatic organisms and human health. They exist in water and wastewater, which are from several sources, such as inappropriate disposal and littering. Therefore, it is important to evaluate the characteristics of MPs in different water types and oxidation processes and study dissolved organic carbon (DOC) leaching and chloroform formation. A commonly existing plastic matter, polyethylene (PE) was placed in different waters and gone through the Fenton-like reaction and the chlorination. The result showed that the PE leached nearly a similar amount of DOC (<1 mg L-1), which was regardless of the water types and under low-dosed irradiation/dark environment. The leached DOC caused the chloroform formation after the chlorination in the waters. During the Fenton-like reaction with the PE, a higher amount of leached DOC (â¼3 mg L-1) was detected compared with that in the chlorination (â¼0.8 mg L-1). The degree of DOC leaching from the PE caused by the oxidation processes was reflected by the degree of surface structural damage on the PE. However, the chlorination resulted in a higher chloroform formation from the PE (â¼20 µg L-1) as the Fenton-like reaction degraded the chloroform. The higher the sodium hypochlorite concentration, the higher the chloroform concentration. When the chloroform existed in the water with the PE, adsorption of chloroform onto the PE was initially observed; however the rate of volatilization would be higher than the rate of adsorption eventually. This study offers useful information for the risk assessment of MPs in our fresh water and drinking water and possible mitigation strategies.