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1.
Artigo em Chinês | MEDLINE | ID: mdl-38538245

RESUMO

As a rapid, accurate and efficient analytical technique, gas chromatography is widely used in the detection of volatile organic compounds and inorganic small molecule toxins, and it is the main analytical method in the national testing standards for occupational health. The existing effective national standards of gas chromatography for the detection of some substances have low column efficiency, high toxicity of reagents, poor correlation of the standard curve and low desorption efficiency and other problems, some of which can be solved through method improvement. At the same time, with the use of new materials and new processes, new types of toxic substances are emerging, and there are still many occupational disease hazards of limited value without supporting detection methods, gas chromatography can be applied to the detection of some toxic substances to better complement the vacancy of China's occupational health detection methods. This paper analyzes the current situation of the application of gas chromatography in occupational health testing standards, discusses the improvement of some of these methods, and helps to promote the application and development of gas chromatography in occupational health testing.


Assuntos
Poluentes Ocupacionais do Ar , Saúde Ocupacional , Poluentes Ocupacionais do Ar/análise , Local de Trabalho , Cromatografia Gasosa/métodos , China
2.
Zhonghua Er Ke Za Zhi ; 60(8): 774-780, 2022 Aug 02.
Artigo em Chinês | MEDLINE | ID: mdl-35922187

RESUMO

Objective: To investigate the incidence and trend of short-term outcomes among preterm infants born <34 weeks' gestation. Methods: A secondary analysis of data from the standardized database established by a multicenter cluster-randomized controlled study "reduction of infection in neonatal intensive care units (NICU) using the evidence-based practice for improving quality (REIN-EPIQ) study". This study was conducted in 25 tertiary NICU. A total of 27 192 infants with gestational age <34 weeks at birth and admitted to NICU within the first 7 days of life from May 2015 to April 2018 were enrolled. Infants with severe congenital malformation were excluded. Descriptive analyses were used to describe the mortality and major morbidities of preterm infants by gestational age groups and different admission year groups. Cochran-Armitage test and Jonckheere-Terpstra test were used to analyze the trend of incidences of mortality and morbidities in 3 study-years. Multiple Logistic regression model was constructed to analyze the differences of outcomes in 3 study-years adjusting for confounders. Results: A total of 27 192 preterm infants were enrolled with gestational age of (31.3±2.0) weeks at birth and weight of (1 617±415) g at birth. Overall, 9.5% (2 594/27 192) of infants were discharged against medical advice, and the overall mortality rate was 10.7% (2 907/27 192). Mortality for infants who received complete care was 4.7% (1 147/24 598), and mortality or any major morbidity was 26.2% (6 452/24 598). The incidences of moderate to severe bronchopulmonary dysplasia, sepsis, severe intraventricular hemorrhage or periventricular leukomalacia, proven necrotizing enterocolitis, and severe retinopathy of prematurity were 16.0% (4 342/27 192), 11.9% (3 225/27 192), 6.8% (1 641/24 206), 3.6% (939/25 762) and 1.5% (214/13 868), respectively. There was a decreasing of the overall mortality (P<0.001) during the 3 years. Also, the incidences for sepsis and severe retinopathy of prematurity both decreased (both P<0.001). However, there were no significant differences in the major morbidity in preterm infants who received complete care during the 3-year study period (P=0.230). After adjusting for confounders, infants admitted during the third study year showed significantly lower risk of overall mortality (adjust OR=0.62, 95%CI 0.55-0.69, P<0.001), mortality or major morbidity, moderate to severe bronchopulmonary dysplasia, sepsis and severe retinopathy of prematurity, compared to those admitted in the first study year (all P<0.05). Conclusions: From 2015 to 2018, the mortality and major morbidities among preterm infants in Chinese NICU decreased, but there is still space for further efforts. Further targeted quality improvement is needed to improve the overall outcome of preterm infants.


Assuntos
Idade Gestacional , Doenças do Prematuro , Alta do Paciente , Displasia Broncopulmonar/epidemiologia , Humanos , Lactente , Mortalidade Infantil/tendências , Recém-Nascido , Recém-Nascido Prematuro , Doenças do Prematuro/epidemiologia , Retinopatia da Prematuridade/epidemiologia , Sepse/epidemiologia
3.
Zhonghua Er Ke Za Zhi ; 60(5): 435-441, 2022 May 02.
Artigo em Chinês | MEDLINE | ID: mdl-35488637

RESUMO

Objective: To explore the heterogeneity and correlation of clinical phenotypes and genotypes in children with disorders of sex development (DSD). Methods: A retrospective study of 1 235 patients with clinically proposed DSD in 36 pediatric medical institutions across the country from January 2017 to May 2021. After capturing 277 DSD-related candidate genes, second-generation sequencing was performed to analyzed the heterogeneity and correlation combined with clinical phenotypes. Results: Among 1 235 children with clinically proposed DSD, 980 were males and 255 were females of social gender at the time of initial diagnosis with the age ranged from 1 day of age to 17.92 years. A total of 443 children with pathogenic variants were detected through molecular genetic studies, with a positive detection rate of 35.9%. The most common clinical phenotypes were micropenis (455 cases), hypospadias (321 cases), and cryptorchidism (172 cases) and common mutations detected were in SRD5A2 gene (80 cases), AR gene (53 cases) and CYP21A2 gene (44 cases). Among them, the SRD5A2 mutation is the most common in children with simple micropenis and simple hypospadias, while the AMH mutation is the most common in children with simple cryptorchidism. Conclusions: The SRD5A2 mutation is the most common genetic variant in Chinese children with DSD, and micropenis, cryptorchidism, and hypospadias are the most common clinical phenotypes. Molecular diagnosis can provide clues about the biological basis of DSD, and can also guide clinicians to perform specific clinical examinations. Target sequence capture probes and next-generation sequencing technology can provide effective and economical genetic diagnosis for children with DSD.


Assuntos
Criptorquidismo , Transtornos do Desenvolvimento Sexual , Hipospadia , 3-Oxo-5-alfa-Esteroide 4-Desidrogenase/genética , Criança , China/epidemiologia , Criptorquidismo/genética , Transtornos do Desenvolvimento Sexual/diagnóstico , Transtornos do Desenvolvimento Sexual/genética , Feminino , Doenças dos Genitais Masculinos , Genótipo , Humanos , Hipospadia/genética , Masculino , Proteínas de Membrana/genética , Pênis/anormalidades , Fenótipo , Estudos Retrospectivos , Esteroide 21-Hidroxilase/genética
4.
Zhonghua Yi Xue Za Zhi ; 101(39): 3227-3231, 2021 Oct 26.
Artigo em Chinês | MEDLINE | ID: mdl-34689535

RESUMO

Objective: To investigate the characteristics of glutamatergic neurotransmitter and neurotransmission dysfunction in patients with major depressive disorder (MDD) and its relationship with clinical characteristics. Methods: Fifty-two patients with MDD and 51 healthy controls were selected. Hamilton Depression scale-17 (HAMD-17) and Hamilton Anxiety Scale (HAMA) were used to evaluate the symptoms of depression and anxiety. The serum glutamate level was measured by enzyme-linked immunosorbent assay (ELISA). Reverse transcription polymerase chain reaction (RT-PCR) was used to detect the mRNA level of NR1 subunit of NMDA receptor. Results: There was no significant difference in gender and age between MDD group and healthy control group. Compared with the control group, the level of serum glutamate [(35±6) mg/L vs (29±6) mg/L, P = 0.021] and mRNA level of NR1 (1.5±0.8 vs 0.8±0.6, P = 0.001) in MDD group were significantly higher. In MDD group, serum glutamate level was positively correlated with depression core symptom score (r = 0.52, P = 0.028), and mRNA level of NR1 subunit was positively correlated with the total course of disease (r = 0.42, P = 0.024). Conclusion: MDD patients may have disorder of glutamatergic neurotransmitter and abnormal expression of NR1 subunit.


Assuntos
Transtorno Depressivo Maior , Transtornos de Ansiedade , Humanos , N-Metilaspartato , RNA Mensageiro/genética , Receptores de N-Metil-D-Aspartato/genética
5.
Zhonghua Wei Chang Wai Ke Za Zhi ; 24(7): 626-632, 2021 Jul 25.
Artigo em Chinês | MEDLINE | ID: mdl-34289548

RESUMO

Objective: Due to its various anatomical variations and numerous branches, the gastrocolic vein trunk (Henle trunk) is the most common site to develop bleeding and other complications in laparoscopic right hemicolectomy for colon cancer. This study aims to investigate the role of ileocolic vein (ICV) joining with Henle trunk, a rare anatomical variation. Methods: A rare case whose ICV was newly found to involve in the formation of Henle trunk during laparoscopic resection of right hemicolon cancer was reported as right gastroepiploic vein+ right colic vein+superior right colic vein+ICV. This anatomical variation was confirmed by multi-slice spiral CT coronal two-dimensional reconstruction of right hemicolon angiography. The literatures about ICV participating in formation of Henle trunk were systematically searched from PubMed, The Cochran Library, CNKI net and Wanfang database, and the occurrence probability and composition of its anatomical variation were analyzed. Results: This was a 47-year-old female patient who underwent laparoscopic right hemicolectomy. When the vessels were dissected during operation, it was found that ICV did not accompany the ileocolic artery, but directly flowed into Henle trunk. Two-dimensional reconstructed CT images of right hemicolon vessels showed that the composition of Henle trunk was rarely varied, which was composed of right gastroepiploic vein, right colonic vein, superior right colonic vein and ICV. Five literatures were enrolled from literature retrieval. A total of 12 cases with ICV participating in the construction of Henle trunk were reported, with a probability of 0.27%-6.31% and 6 forms of the formation of Henle trunk. In this case, Henle trunk was made up of right gastroepiploic vein, right colonic vein, upper right colonic vein and ICV, which was reported for the first time. Conclusions: ICV involving in Henle trunk is a rare vascular variation, and this type of variation should be fully recognized. Careful dissection during operation is necessary to prevent intraoperative bleeding caused by improper operation.


Assuntos
Neoplasias do Colo , Laparoscopia , Variação Anatômica , Colectomia , Neoplasias do Colo/cirurgia , Feminino , Humanos , Veias Mesentéricas , Pessoa de Meia-Idade
6.
Clin. transl. oncol. (Print) ; 23(1): 139-147, ene. 2021.
Artigo em Inglês | IBECS | ID: ibc-220459

RESUMO

Background Neutrophil–lymphocyte ratio (NLR) has shown a good prognostic value in many different type of malignancies. The purpose of this study was to investigate the relationship between NLR and the outcome of critically ill patients with cancer. Methods We performed a single-institution, retrospective study of 1317 adult critically ill patients with cancer and determined the optimal cut-off for NLR by X-tile software. Propensity score matching (PSM) and inverse probabilities of treatment weighting (IPTW) were performed to control confounders. Cox proportional hazards model was used to evaluate the relationship between NLR and 28-day, 6-month and 1-year all-cause mortality. Kaplan–Meier method, subgroup analysis, and receiver operating characteristics (ROC) analysis were applied to assess the prognostic value of NLR. Results The cut‐off value for NLR was 17.6. Cox proportional hazards model demonstrated that high NLR (> 17.6) was independently associated with 28-day, 6-month and 1-year all-cause mortality with hazard ratio (HR) of 1.58 (1.29, 1.94), 1.51 (1.28, 1.77) and 1.45 (1.25, 1.69), respectively. The results were consistent with survival analyses (p < 0.001, log-rank test). The ROC analyses showed that the discrimination abilities of NLR were better than other blood-based biomarkers. Conclusion NLR is a promising prognostic indicator of survival in unselected critical ill patients with cancer (AU)


Assuntos
Humanos , Masculino , Feminino , Idoso , Contagem de Células , Neoplasias/mortalidade , Neoplasias/fisiopatologia , Neutrófilos , Linfócitos , Prognóstico , Estado Terminal , Estudos Retrospectivos , Curva ROC , Análise de Sobrevida , Fatores de Tempo
7.
Clin Transl Oncol ; 23(1): 139-147, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32472452

RESUMO

BACKGROUND: Neutrophil-lymphocyte ratio (NLR) has shown a good prognostic value in many different type of malignancies. The purpose of this study was to investigate the relationship between NLR and the outcome of critically ill patients with cancer. METHODS: We performed a single-institution, retrospective study of 1317 adult critically ill patients with cancer and determined the optimal cut-off for NLR by X-tile software. Propensity score matching (PSM) and inverse probabilities of treatment weighting (IPTW) were performed to control confounders. Cox proportional hazards model was used to evaluate the relationship between NLR and 28-day, 6-month and 1-year all-cause mortality. Kaplan-Meier method, subgroup analysis, and receiver operating characteristics (ROC) analysis were applied to assess the prognostic value of NLR. RESULTS: The cut-off value for NLR was 17.6. Cox proportional hazards model demonstrated that high NLR (> 17.6) was independently associated with 28-day, 6-month and 1-year all-cause mortality with hazard ratio (HR) of 1.58 (1.29, 1.94), 1.51 (1.28, 1.77) and 1.45 (1.25, 1.69), respectively. The results were consistent with survival analyses (p < 0.001, log-rank test). The ROC analyses showed that the discrimination abilities of NLR were better than other blood-based biomarkers. CONCLUSION: NLR is a promising prognostic indicator of survival in unselected critical ill patients with cancer.


Assuntos
Linfócitos/citologia , Neoplasias/mortalidade , Neutrófilos/citologia , Idoso , Estado Terminal/mortalidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Contagem de Linfócitos , Masculino , Prognóstico , Pontuação de Propensão , Modelos de Riscos Proporcionais , Curva ROC , Estudos Retrospectivos , Análise de Sobrevida , Fatores de Tempo
8.
Eur Rev Med Pharmacol Sci ; 24(24): 12624, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33378005

RESUMO

Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Circular RNA_LARP4 inhibits cell proliferation and invasion of nasopharyngeal carcinoma by repressing ROCK1, by J.-Y. Pan, X.-L. Bao, K. Zhu, published in Eur Rev Med Pharmacol Sci 2019; 23 (22): 9915-9922-DOI: 10.26355/eurrev_201911_19557-PMID: 31799660" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/19557.

9.
Eur Rev Med Pharmacol Sci ; 24(19): 10181-10193, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-33090426

RESUMO

OBJECTIVE: Astrocytes play a key role in hypoxic brain injury. The aim of our research was to determine the effects of menaquinone-7 (MK-7), a subtype of vitamin K2 (VK2), on astrocytes during hypoxia and its potential mechanisms. MATERIALS AND METHODS: Astrocytes from the palliums of newborn Sprague Dawley rats were cultured. An astrocyte-hypoxia model was established using a hypoxia workstation. Cell Counting Kit-8 (CCK-8) and BrdU assays were used to determine the effects of MK-7 on hypoxic astrocytes. 2',7'-Dichlorodihydrofluorescein diacetate (DCFDA) or dihydroethidium (DHE) assays were conducted to detect the levels of reactive oxygen species (ROS). An ATP assay was used to measure intracellular ATP production. The levels of proinflammatory cytokines and chemokines containing interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), CC-chemokine ligand 2 (CCL2), and CXC-chemokine ligand 10 (CXCL10), as well as vitamin K-dependent protein growth arrest-specific 6 (Gas6), were determined in hypoxia-induced astrocytes, in the presence or absence of MK-7 pretreatment. Small interfering RNA (siRNA) was used to knockdown Gas6 expression to determine its role in hypoxic astrocytes pretreated with MK-7. RESULTS: Hypoxia reduced astrocyte viability and proliferation significantly; however, when pretreated with MK-7, these conditions remarkably increased. MK-7 also inhibited hypoxia-induced ROS production and enhanced ATP generation of hypoxic astrocytes. Pretreatment with MK-7 effectively reduced the expression of IL-6, TNF-α, CCL2, and CXCL10 but enhanced the expression of Gas6 in hypoxic astrocytes. Gas6 inhibition markedly attenuated the decline in MK-7-induced ROS generation and IL-6 expression, and weakened MK-7-induced cell viability and ATP production in hypoxic astrocytes. CONCLUSIONS: Our study is the first to confirm that MK-7 can protect astrocytes from hypoxia-induced cytotoxicity, possibly by inhibiting mitochondrial dysfunction and the expression of proinflammatory cytokines. Gas6 may also participate in these protective effects.


Assuntos
Astrócitos/efeitos dos fármacos , Hipóxia Celular/efeitos dos fármacos , Peptídeos e Proteínas de Sinalização Intercelular/genética , Mitocôndrias/efeitos dos fármacos , Vitamina K 2/análogos & derivados , Vitaminas/farmacologia , Trifosfato de Adenosina/metabolismo , Animais , Astrócitos/metabolismo , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Células Cultivadas , Mitocôndrias/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Ratos Sprague-Dawley , Espécies Reativas de Oxigênio/metabolismo , Vitamina K 2/farmacologia
10.
Eur Rev Med Pharmacol Sci ; 24(17): 8988-8996, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32964988

RESUMO

OBJECTIVE: Acute liver injury (ALI) is associated with the Kupffer cells (KCs) inflammation and hepatocytes apoptosis. Previous studies have shown that miR-640 is a valid regulator of the Low-density lipoprotein receptor-related protein 1 (LRP 1) which expressed much lower in an inflammatory condition. However, it is unclear whether MiR-640 inhibition protects against ALI by the up-regulation of LRP 1. To explore the regulated mechanism of miR-640 on acute liver injury. MATERIALS AND METHODS: We analyzed the expression of miR-640 in different times of acute injured liver tissues. Lipopolysaccharide (LPS) was employed in provoking the KCs inflammation to injure liver. We used miR-640 mimic or inhibitor to improve or resist the function of miR-640 to explore miR-640 function to ALI via the target of LRP1. RESULTS: We showed that the expression of miR-640 markedly increased in LPS-induced acute injured liver tissues. LPS promoted the progress of ALI, and the inhibition of miR-640 could reverse the injured effects of LPS. Moreover, WNT signaling pathway and LRP1 were significantly enhanced by miR-640 inhibition. CONCLUSIONS: These results suggested that miR-640 promotes KCs inflammation via restraining LRP 1 and WNT signaling pathway. But inhibiting miR-640 prevents inflammation damage and ameliorates ALI. MiR-640 inhibition may become a novel target for the therapy of ALI in the future.


Assuntos
Lesão Pulmonar Aguda/metabolismo , Proteína-1 Relacionada a Receptor de Lipoproteína de Baixa Densidade/metabolismo , MicroRNAs/metabolismo , Lesão Pulmonar Aguda/induzido quimicamente , Lesão Pulmonar Aguda/patologia , Animais , Células Cultivadas , Inflamação/metabolismo , Lipopolissacarídeos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , MicroRNAs/genética , Via de Sinalização Wnt
11.
Zhonghua Yi Xue Za Zhi ; 100(23): 1800-1804, 2020 Jun 16.
Artigo em Chinês | MEDLINE | ID: mdl-32536126

RESUMO

Objective: To investigate the difference of serum glutamate (Glu) and gamma- aminobutyric acid (GABA) levels between depressive patients and bipolar disorder patients with depressive episodes. Methods: From May 2018 to March 2019, forty-seven patients with depression (depression group) and 45 patients with bipolar depressive episode (bipolar depression group) were selected from the department of psychiatry, the First Affiliated Hospital of Jinan University, and 41 healthy controls (healthy control group) were simultaneously recruited from the community. The subjects' depression and anxiety were assessed by 17 items of Hamilton depression scale (HAMD-17) and Hamilton Anxiety Scale (HAMA). The serum levels of Glu, GABA and Glu decarboxylase (GAD) were detected by enzyme-linked immunosorbent assay (ELISA) . Results: The serum Glu level ( (36±7) mg/L, (37±7) mg/L vs (28±4) mg/L, F=10.97, P<0.01) and Glu/GABA ratio (5.77±0.35, 8.18±0.24 vs 3.35±0.33, F=37.68, P<0.01) in depression and bipolar depression groups were higher than those of healthy control group, while the GABA level ((6.1±0.7) µmol/L,(4.1±0.8) µmol/L vs (8.1±1.2) µmol/L, F=21.61, P<0.01) and GAD ((31±6) U/L, (31±6) U/L vs (35±6) U/L, F=5.61, P<0.01) were lower than those of healthy control group. The level of serum GABA in bipolar depression group was lower than that in depression group. However, Glu/GABA was higher in bipolar depression group than that in depression group (P<0.01). The level of serum GABA in depression group was negatively correlated with HAMD sleep disorder factor (r=-0.46, P=0.01). Conclusions: Both depression and bipolar depression have abnormal levels of Glu, GABA neurotransmitters and imbalance between Glu and GABA in peripheral blood circulation. Moreover, these abnormalities are more obvious in patients with bipolar depression.


Assuntos
Transtorno Bipolar , Transtorno Depressivo Maior , Glutamato Descarboxilase , Ácido Glutâmico , Humanos , Ácido gama-Aminobutírico
12.
Eur Rev Med Pharmacol Sci ; 24(3): 1398-1407, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-32096189

RESUMO

OBJECTIVE: To study the influence of micro ribonucleic acid (miR)-155 on depression-like behaviors of depression mice, and to explore the role of Wnt/b-catenin signaling pathway in behavioral regulation of depression mice. MATERIALS AND METHODS: The mouse model of depression was established via chronic unpredictable mild stress (CUMS). All mice were randomly divided into control group (n=12), model group (n=12), and fluoxetine group (n=12). The expression level of miR-155 in the hippocampus of mice in each group was detected via quantitative Polymerase Chain Reaction (qPCR). The changes in the behaviors of mice in each group were evaluated via behavioral experiments. The apoptosis level in the hippocampus of mice in each group was detected via terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining. Moreover, the content of inflammatory factors in the hippocampus of mice in each group was detected using the enzyme-linked immunosorbent assay (ELISA) kits. The expression levels of Wnt/b-catenin signaling pathway-related proteins in each group were detected via Western blotting. RESULTS: The expression level of miR-155 in the hippocampus was significantly higher in model group than that in control group (p<0.01). Meanwhile, the expression level of miR-155 was significantly lower in fluoxetine group than that in model group (p<0.01). There were no statistically significant differences in the crossing score and rearing score in the open field test among groups (p>0.05). Compared with those in control group, the immobility time in tail suspension test and forced swimming test were significantly increased (p<0.01), while the sucrose preference degree significantly declined (p<0.01) in model group. Fluoxetine could significantly reduce the immobility time in tail suspension test and forced swimming test (p<0.01) and increase the sucrose preference degree (p<0.01) in model group. The number of TUNEL-positive cells in the hippocampus of mice in model group was significantly larger than that in control group (p<0.01). Fluoxetine could effectively reduce the number of TUNEL-positive cells in the hippocampus (p<0.01). Compared with those in control group, the content of tumor necrosis factor-α (TNF-a), interleukin-1b (IL-1b), and IL-6 in the hippocampus was significantly increased (p<0.01), while the content of IL-10 was significantly decreased (p<0.01) in model group. Fluoxetine could effectively reduce the content of TNF-a, IL-1b, and IL-6 (p<0.01) and increase the content of IL-10 (p<0.01). Besides, in model group, the expression levels of dishevelled-1 (DVL-1) and b-catenin in hippocampus remarkably declined (p<0.01), while the expression levels of glycogen synthase kinase-3b (GSK-3b) and adenomatous polyposis coli (APC) were remarkably increased (p<0.01) compared with those in control group. Fluoxetine could effectively lower the expressions of GSK-3b and APC in the hippocampus (p<0.01) and increase the expressions of DVL-1 and b-catenin (p<0.01) in model group. CONCLUSIONS: MiR-155 is involved in regulating the depression-like behaviors of depression mice through promoting the release of inflammatory factors and the apoptosis of hippocampal neurons. Its mechanism may be related to the inhibition of the Wnt/b-catenin signaling pathway.


Assuntos
Depressão/metabolismo , MicroRNAs/biossíntese , Via de Sinalização Wnt/fisiologia , beta Catenina/metabolismo , Animais , Antidepressivos de Segunda Geração/farmacologia , Antidepressivos de Segunda Geração/uso terapêutico , Depressão/tratamento farmacológico , Depressão/psicologia , Fluoxetina/farmacologia , Fluoxetina/uso terapêutico , Hipocampo/efeitos dos fármacos , Hipocampo/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Distribuição Aleatória , Estresse Psicológico/tratamento farmacológico , Estresse Psicológico/metabolismo , Estresse Psicológico/psicologia , Via de Sinalização Wnt/efeitos dos fármacos , beta Catenina/antagonistas & inibidores
13.
Eur Rev Med Pharmacol Sci ; 23(22): 9915-9922, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31799660

RESUMO

OBJECTIVE: Nasopharyngeal carcinoma (NPC) is one of the most ordinary malignant tumors. Recent studies have revealed that circular RNAs play an important role in the progression of tumorigenesis. This study aims to identify how circular RNA_LARP4 functions in the progression of NPC. PATIENTS AND METHODS: We performed Real Time quantitative-Polymerase Chain Reaction (RT-qPCR) in 58 paired NPC patients' tissue samples and cell lines to detect circular RNA_LARP4 expression. The function of circular RNA_LARP4 in the NPC proliferation was identified by performing proliferation assay and colony formation assay. Moreover, the function of circular RNA_LARP4 in NPC metastasis was measured by performing scratch wound assay and transwell assay in vitro. Furthermore, the underlying mechanism was explored through Western blot assay and RT-qPCR. RESULTS: Circular RNA_LARP4 expression was significantly lower in NPC tissues compared to that in adjacent samples. Cell proliferation of NPC was inhibited after overexpression of circular RNA_LARP4 in vitro. Cell migration and invasion of NPC was inhibited after overexpression of circular RNA_LARP4 in vitro. Furthermore, the results of further experiments revealed that Rho-associated kinase 1 (ROCK1) was downregulated via overexpression of circular RNA_LARP4 and was also a direct target of circular RNA_LARP4 in NPC. CONCLUSIONS: This study suggests that circular RNA_LARP4 inhibits NPC cell proliferation and metastasis via targeting ROCK1 in vitro.


Assuntos
Carcinoma Nasofaríngeo/genética , Neoplasias Nasofaríngeas/genética , RNA Circular/genética , Quinases Associadas a rho/genética , Quinases Associadas a rho/metabolismo , Linhagem Celular Tumoral , Movimento Celular , Proliferação de Células , Regulação para Baixo , Regulação Neoplásica da Expressão Gênica , Humanos , Carcinoma Nasofaríngeo/metabolismo , Neoplasias Nasofaríngeas/metabolismo , Invasividade Neoplásica , Metástase Neoplásica
15.
Eur Rev Med Pharmacol Sci ; 22(11): 3467-3473, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29917200

RESUMO

OBJECTIVE: To investigate the effects of hyperbaric oxygen preconditioning (HBO-PC) on neuronal apoptosis, Ca2+ concentration, and Caspases expression after spinal cord injury (SCI) in rats. MATERIALS AND METHODS: A total of 36 rats were randomly divided into control group (CON group), hyperbaric oxygen preconditioning group (HBO-PC group) and spinal cord injury group (SCI group), with 12 rats in each group. Rats in group HBO-PC were given HBO-PC intervention before modeling. SCI model was established by modified Allen method in group HBO-PC and group SCI. Basso-Beattie-Bresnahan (BBB) locomotor rating scale and motor evoked potential (MEP) examination were used to assess the neurological function. The expression of apoptosis gene caspase (3, 7, 8, 12) mRNA was detected by reverse transcription-polymerase chain reaction (RT-PCR). The concentration of Ca2+ in spinal cord tissue of each group was detected. RESULTS: CON group, HBO-PC group, and SCI group were gradually diminishing in BBB score and potential value and amplitude of MEP, respectively. The differences between groups were statistically significant (p<0.05). The expressions of Caspase-3 and 7, 8 and 12 mRNA in SCI group were significantly higher than those in CON group and HBO-PC group, respectively (p<0.05). There was no significant difference between CON group and HBO-PC group (p>0.05). The concentrations of Ca2+ in the CON group, HBO-PC group and SCI group were gradually increased; differences between groups were statistically significant (p<0.05). CONCLUSIONS: HBO-PC can reduce the loss of motor function of SCI rats, which may inhibit the activation of endoplasmic reticulum pathway of neural apoptosis, and reduce the calcium overload through inhibiting the expressions of pro-apoptotic proteins (Caspase-3/7/8/12), thus reducing the cell apoptosis and protecting neurons.


Assuntos
Apoptose , Cálcio/metabolismo , Caspases/biossíntese , Oxigenoterapia Hiperbárica , Neurônios/patologia , Traumatismos da Medula Espinal/metabolismo , Traumatismos da Medula Espinal/patologia , Animais , Potencial Evocado Motor/fisiologia , Feminino , Locomoção/fisiologia , Masculino , Ratos , Traumatismos da Medula Espinal/enzimologia
19.
Clin Exp Dermatol ; 42(1): 72-74, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28028857

RESUMO

Cutaneous protothecosis is caused by the achlorophyllic algae Prototheca, typically presenting as a localized plaque in immunocompetent individuals. We report a patient with bilateral erythematous plaques and pustules on her forearms, which had initially been treated with steroids for presumed eczema. Histology showed spherical spore-like bodies with internal morula-like septation, which were positive for periodic-acid-Schiff (PAS) staining, consistent with cutaneous protothecosis. Definitive treatment with oral itraconazole resulted in resolution of the lesions.


Assuntos
Eczema/etiologia , Manipulação de Alimentos , Exposição Ocupacional/efeitos adversos , Prototheca , Pele/patologia , Punho/patologia , Idoso , Biópsia , Eczema/diagnóstico , Feminino , Humanos
20.
Dermatol Online J ; 22(4)2016 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-27617464

RESUMO

Acral pseudolymphomatous angiokeratoma of children (APACHE) is a rare form of cutaneous pseudolymphoma characterized byangiomatous papules with a predilection for the acral regions of children. Classically, a dense dermal lymphocytic infiltrate composed of both T and B cells is seen in histological specimens, together with prominent vessels lined by plump endothelial cells. Increasing evidence suggests that this condition is neither necessarily acral, pseudolymphomatous, nor angiokeratomatous. It may not always be a pediatric disease. Therefore, the correctness of its nomenclature has been questioned. Herein, we report threecases whose clinical and histological features were consistent with the diagnosis of APACHE. To our knowledge, this is the first report of APACHE from Southeast Asia. We also discuss why we believe "APACHE" to be a misnomer and support "papular angiolymphoid hyperplasia" as a more accurate and encompassing term. In addition, we illustrate a case with significant overlapping features with lymphoplasmacytic plaque in children, suggesting that both entities may exist on a clinical andhistological spectrum.


Assuntos
Angioceratoma/patologia , Hiperplasia Angiolinfoide com Eosinofilia/patologia , Pseudolinfoma/patologia , Neoplasias Cutâneas/patologia , Criança , Feminino , Humanos , Masculino , Singapura , Dermatopatias/patologia , Terminologia como Assunto , Adulto Jovem
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