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1.
Eur Radiol ; 33(11): 8046-8054, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37256350

RESUMO

OBJECTIVES: To evaluate the use of diffusion tensor imaging (DTI) and diffusion kurtosis imaging (DKI) for detection of microstructural changes in the trigeminal nerves of trigeminal neuralgia (TN) patients. METHODS: Forty TN patients and 40 healthy controls were examined using 3 T magnetic resonance imaging (MRI) to evaluate DTI and DKI parameters in trigeminal nerves. One-way ANOVA was used to test the differences in age, sex, and DTI and DKI parameters between the TN-affected sides, TN-unaffected sides, and controls. For parameters with inter-group differences, pairwise comparisons were performed. Then, the difference ratios (DRs) of the parameters with statistical differences were calculated and used for the receiver operating characteristic (ROC) analysis to assess their diagnostic performance. In addition, for the DTI and DKI parameter values with differences, we used pure DTI and DKI values to perform the ROC analysis. RESULTS: Compared to the unaffected sides and controls, the FA, MK, and Kr of the affected sides of TN patients were significantly reduced, while ADC was significantly increased (p < 0.05). The diagnostic efficiency of the FA DRs (AUC: 0.974; cutoff value: 0.038; sensitivity: 100%; specificity: 95.0%) was the highest among all DTI and DKI parameters. The DRs of FA and MK more efficiently diagnosed TN than pure FA and MK values. CONCLUSIONS: DTI and DKI allowed detection of microstructural changes in TN-affected trigeminal nerves. FA DR was the best independent predictor of microstructural changes in TN. CLINICAL RELEVANCE STATEMENT: Both DTI and DKI can be used for noninvasive quantitative evaluation of the changes in the microstructure of the cisternal segment of the cranial nerves in clinical practice. KEY POINTS: • Diffusion tensor imaging (DTI) can be used to evaluate the in vivo integrity of white matter and nerve fiber pathway. • Diffusion kurtosis imaging (DKI) has been shown to be considerable sensitive to microstructural changes. • DTI combined with DKI can comprehensively evaluate the status of the TN-affected trigeminal nerve.


Assuntos
Neuralgia do Trigêmeo , Substância Branca , Humanos , Neuralgia do Trigêmeo/diagnóstico por imagem , Imagem de Tensor de Difusão/métodos , Nervo Trigêmeo/diagnóstico por imagem , Imageamento por Ressonância Magnética
2.
J Biochem Mol Toxicol ; 37(7): e23407, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37341017

RESUMO

Diabetic wounds nowadays have become a major health challenge with the changes of the disease spectrum. Mitochondria are closely associated with stubborn nonhealing diabetic wounds for their vital role in energy metabolism, redox homeostasis, and signal transduction. There is significant mitochondrial dysfunction and oxidative stress in diabetic wounds. However, the contribution of mitochondrial dysfunction in oxidative stress induced nonhealing diabetic wound is still not fully understood. In this review, we will briefly summarize the current knowledge of the reported signaling pathways and therapeutic strategies involved in mitochondrial dysfunction in diabetic wounds. The findings provide further understanding of strategies that focus on mitochondria in diabetic wound treatment.


Assuntos
Diabetes Mellitus , Cicatrização , Humanos , Diabetes Mellitus/metabolismo , Estresse Oxidativo , Mitocôndrias/metabolismo , Oxirredução
3.
Cell Mol Biol Lett ; 28(1): 101, 2023 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-38062349

RESUMO

BACKGROUND: The deer antler, a remarkable mammalian appendage, has a growth rate surpassing that of any other known osseous organ. Emerging evidence indicates that circRNA and MAPK1 play critical roles in chondrocytes. Thus, exploration of their functions in antler chondrocytes will help us to understand the mechanism regulating the rapid antler growth. METHODS: qRT-PCR, western blot, and immunohistochemistry were used to assess the expression of mRNAs and proteins. CCK-8, EdU, Cell migration, ALP activity detection, and ALP staining examined the effects of MAPK1 in antler chondrocytes. FISH, RIP, and luciferase assays were performed to evaluate the interactions among circRNA3634/MAPK1 and miR-124486-5. RIP and RAP assays proved the binding interaction between circRNA3634 and RBPs. Me-RIP was used to determine the m6A methylation modification of circRNA3634. RESULTS: This study revealed high MAPK1 expression in antler cartilage tissue. Overexpression of MAPK1 promoted the proliferation, migration, and differentiation of antler chondrocytes and increased the expression of MAPK3, RAF1, MEK1, RUNX2, and SOX9. The silencing of MAPK1 had the opposite effect. CircRNA3634 was found to act as a molecular sponge for miR-124486-5, leading to increased MAPK1 expression and enhanced proliferation and migration of antler chondrocytes through competitive miR-124486-5 binding. We discovered that METTL3 mediates m6A modification near the splicing site of circRNA3634 and is involved in the proliferation and differentiation of antler chondrocytes. The m6A reader YTHDC1 facilitated the nuclear export of circRNA3634 in an m6A-dependent manner. Our results indicate that m6A-modified circRNA3634 promotes the proliferation of antler chondrocytes by targeting MAPK1 and show that the nuclear export of circRNA3634 is related to the expression of YTHDC1, suggesting that circRNA3634 could represent a critical regeneration marker for the antler. CONCLUSIONS: Our results revealed a novel m6A-modified circRNA3634 promoted the proliferation and differentiation of antler chondrocytes by regulating MAPK1. The nuclear export of circRNA3634 was related to the expression of YTHDC1.


Assuntos
Chifres de Veado , Cervos , MicroRNAs , Animais , Condrócitos/metabolismo , Proliferação de Células/genética , Cervos/genética , MicroRNAs/genética , MicroRNAs/metabolismo
4.
Int J Mol Sci ; 24(8)2023 Apr 13.
Artigo em Inglês | MEDLINE | ID: mdl-37108365

RESUMO

The antler is the unique mammalian organ found to be able to regenerate completely and periodically after loss, and the continuous proliferation and differentiation of mesenchymal cells and chondrocytes together complete the regeneration of the antler. Circular non-coding RNAs (circRNAs) are considered to be important non-coding RNAs that regulate body development and growth. However, there are no reports on circRNAs regulating the antler regeneration process. In this study, full-transcriptome high-throughput sequencing was performed on sika deer antler interstitial and cartilage tissues, and the sequencing results were verified and analyzed. The competing endogenous RNA (ceRNA) network related to antler growth and regeneration was further constructed, and the differentially expressed circRNA2829 was screened out from the network to study its effect on chondrocyte proliferation and differentiation. The results indicated that circRNA2829 promoted cell proliferation and increased the level of intracellular ALP. The analysis of RT-qPCR and Western blot demonstrated that the mRNA and protein expression levels of genes involved in differentiation rose. These data revealed that circRNAs play a crucial regulatory role in deer antler regeneration and development. CircRNA2829 might regulate the antler regeneration process through miR-4286-R+1/FOXO4.


Assuntos
Chifres de Veado , Cervos , MicroRNAs , Animais , Condrócitos , Transcriptoma , Chifres de Veado/metabolismo , RNA Circular/genética , RNA Circular/metabolismo , Cervos/genética , Diferenciação Celular/genética , Proliferação de Células/genética , MicroRNAs/genética , MicroRNAs/metabolismo
5.
Gynecol Endocrinol ; 38(2): 153-157, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34907826

RESUMO

OBJECTIVE: This study aimed to investigate relationships between blood inflammatory and metabolic biomarkers in pregnant Chinese women with gestational diabetes mellitus (GDM) in Southwest China and to compare the contributions of blood inflammatory indicators to GDM identification. SUBJECTS AND METHODS: In total, 1,347 pregnant women were divided by gestational week into early-, middle- and late-pregnancy groups. Fasting samples were collected for complete blood count (CBC) and biochemical indicator measurements. Receiver operating characteristic (ROC) curves were used to predict GDM. Multivariate logistic regression was used to examine the associations between blood inflammatory indicators and GDM prevalence in pregnant women. RESULTS: Significant differences were found in blood inflammatory indicators and metabolic markers in different pregnancy trimesters. For the pregnant women with GDM, FPG, 1 h-PG, 2 h-PG levels, NLR and PLR, WBC and neutrophil counts were statistically differences when compared with non-GDM groups. ROC curve analysis indicated that the NLR, PLR, WBC and neutrophil counts have predictive value for GDM from 24-28 gestational weeks. The FPG levels in 24th-28th weeks of pregnant women were positively correlated with the NLR, PLR, 1 h-PG, 2 h-PG levels and negatively correlated with lymphocyte count. Following adjustment for the age, PLR, and FPG level, multivariate logistic regression showed that the NLR was an independent factor predicting GDM in the 24th-28th weeks of pregnancy. CONCLUSION: The blood inflammatory indicators NLR, PLR, and WBC and neutrophil counts were higher in GDM women than in healthy pregnant women, suggesting that blood inflammatory indicators are associated with GDM.


Assuntos
Diabetes Gestacional , Glicemia/metabolismo , Feminino , Humanos , Lactente , Contagem de Leucócitos , Contagem de Linfócitos , Gravidez , Gestantes , Estudos Retrospectivos
6.
World J Surg Oncol ; 18(1): 215, 2020 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-32814583

RESUMO

BACKGROUND: Natural orifice specimen extraction surgery is a novel technique of minimally invasive surgery. The purpose of this study was to compare the safety of laparoscopic anterior resection with natural orifice specimen extraction (NOSE-LAR) and abdominal incision specimen extraction (AISE-LAR) for sigmoid or rectum tumors. METHODS: MEDLINE (PubMed), Embase, CENTRAL (Cochrane Central Register of Controlled Trials), Scopus, and ClinicalTrials databases were systematically searched for related articles up to August 2019. The primary outcomes included postoperative complications (overall postoperative complication, incision-related complication, anastomotic fistula, and severe complication) and pathologic results (lymph nodes harvested, proximal resection margin, and distal resection edge). The statistical analysis was performed on STATA 12.0 software. RESULTS: Ten studies comprising 1787 patients were used for meta-analysis. Compared with AISE-LAR, NOSE-LAR had more advantages in terms of overall postoperative complication (odds ratio (OR) = 0.65 (95% CI, 0.46 to 0.90; P = 0.01)), incision-related complication (OR = 0.13 (95% CI, 0.05 to 0.35; P < 0.01)), distal resection edge (weighted mean difference (WMD) = 0.17 cm (95% CI, 0.02 to 0.33 cm; P = 0.02)), recovery of gastrointestinal function (WMD = - 0.38 day (95% CI, - 0.70 to - 0.06 day; P = 0.02 )), pain scores in postoperative day 1 (WMD = - 1.64 (95% CI, - 2.31 to - 0.98; P < 0.01)), additional analgesics usage (OR = 0.21 (95% CI, 0.11 to 0.40; P < 0.01)) and hospital stay (WMD = - 0.71 day (95% CI, - 1.10 to - 0.32 day; P < 0.01)), while the operation time of NOSE-LAR was prolonged (WMD = 7.4 min (95% CI, 0.17 to 14.64 min; P = 0.04)). The anastomotic fistula, severe complication, lymph nodes harvested, proximal resection margin, intraoperative blood loss, and long-term outcomes in NOSE-LAR were comparable with AISE-LAR. CONCLUSIONS: The safety of NOSE-LAR was demonstrated, and it could be an alternative to conventional surgery in laparoscopic anterior resection for sigmoid and rectal tumors. However, further randomized and multi-center trials are required.


Assuntos
Laparoscopia , Cirurgia Endoscópica por Orifício Natural , Neoplasias Retais , Colo Sigmoide , Humanos , Duração da Cirurgia , Prognóstico , Neoplasias Retais/cirurgia , Resultado do Tratamento
7.
Crit Rev Food Sci Nutr ; 59(1): 173-180, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-28846441

RESUMO

Mycotoxins are the foremost naturally occurring contaminants of food products such as corn, peanuts, tree nuts, and wheat. As the secondary metabolites, mycotoxins are mainly synthesized by many species of the genera Aspergillus, Fusarium and Penicillium, and are considered highly toxic and carcinogenic to humans and animals. Most mycotoxins are detected and quantified by analytical chemistry-based methods. While mycotoxigenic fungi are usually identified and quantified by biological methods. However, these methods are time-consuming, laborious, costly, and inconsistent because of the variability of the grain-sampling process. It is desirable to develop rapid, non-destructive and efficient methods that objectively measure and evaluate mycotoxins and mycotoxigenic fungi in food. In recent years, some spectroscopy-based technologies such as hyperspectral imaging (HSI), Raman spectroscopy, and Fourier transform infrared spectroscopy have been extensively investigated for their potential use as tools for the detection, classification, and sorting of mycotoxins and toxigenic fungal contaminants in food. HSI integrates both spatial and spectral information for every pixel in an image, making it suitable for rapid detection of large quantities of samples and more heterogeneous samples and for in-line sorting in the food industry. In order to track the latest research developments in HSI, this paper gives a brief overview of the theories and fundamentals behind the technology and discusses its applications in the field of rapid detection and sorting of mycotoxins and toxigenic fungi in food products. Additionally, advantages and disadvantages of HSI are compared, and its potential use in commercial applications is reported.


Assuntos
Contaminação de Alimentos/análise , Micotoxinas/química , Análise Espectral/métodos , Animais , Fungos/química , Fungos/metabolismo , Humanos
8.
Water Sci Technol ; 79(8): 1494-1502, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31169507

RESUMO

Bi2O2CO3 modified graphitic carbon nitride (g-C3N4) nanosheets were prepared by a simple one-pot synthetic strategy. In the presence of ammonium nitrate, different mass ratios of bismuth nitrate/melamine were used to fabricate these catalysts, which were characterized by X-ray diffraction (XRD), N2-physisorption, Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-vis analysis, and photoluminescence (PL). The catalytic properties of composites were evaluated by photodegrading tetracycline hydrochloride (TC) under visible light irradiation. Among these catalysts, Bi2O2CO3(1.5)/g-C3N4 showed the highest catalytic activity, which was more than 16 times greater than the pristine g-C3N4 material. The improved photocatalytic properties of Bi2O2CO3/g-C3N4 may be due to the formation of a heterojunction between Bi2O2CO3 and g-C3N4, leading to the effective separation of photo-induced carriers and the enhanced absorption of visible light. Furthermore, the Bi2O2CO3/g-C3N4 composites had considerable catalytic stability, which was a key element for their potential applications.


Assuntos
Catálise , Grafite , Modelos Químicos , Luz , Espectroscopia de Infravermelho com Transformada de Fourier , Difração de Raios X
9.
Histopathology ; 64(7): 963-70, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24329718

RESUMO

AIMS: The aim of this study was to determine FOXC1 expression in gastric tissues, and the clinical significance of FOXC1 in the development, progression and metastasis of gastric cancer (GC). METHODS AND RESULTS: We screened GCs for the expression of FOXC1 using the Affymetrix U133 plus 2.0 Gene Chip Array, and found that expression was significantly higher in GC tissues than in controls. Furthermore, we validated the expression levels of FOXC1 using real-time quantitative RT-PCR (qRT-PCR), and of FOXC1 using immunohistochemistry (IHC). Our study showed that expression levels of FOXC1 mRNA and FOXC1 in GC tissues were significantly higher than those in corresponding non-tumour tissues. High FOXC1 expression correlated with the degree of histological differentiation (P < 0.01), TNM stage (P < 0.001), invasive depth (P < 0.05), lymph node metastasis (P < 0.05), and distant metastasis (P < 0.01). Survival analysis revealed that patients with high FOXC1 expression had shorter overall survival than those with low expression (P < 0.001). Multivariate analysis showed that high FOXC1 expression was an independent prognostic factor for GC patients (P < 0.01). CONCLUSIONS: Overexpression of FOXC1 may play a key role in the progression of GC, and FOXC1 expression may serve as a useful marker for predicting the outcome of patients with GC.


Assuntos
Biomarcadores Tumorais/metabolismo , Fatores de Transcrição Forkhead/metabolismo , Regulação Neoplásica da Expressão Gênica , Neoplasias Gástricas/metabolismo , Adulto , Idoso , Idoso de 80 Anos ou mais , Progressão da Doença , Feminino , Perfilação da Expressão Gênica , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Análise de Sequência com Séries de Oligonucleotídeos , Prognóstico , Neoplasias Gástricas/patologia
10.
Dalton Trans ; 53(11): 5125-5132, 2024 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-38379520

RESUMO

Here, a cyclometalated Pt(II) clamshell dimer (complex 2) has been synthesized with the primary ligand of dibenzo(f,h)quinoxaline and an ancillary ligand of N,N'-diphenylformamidine. In addition, a mononuclear Pt(II) complex 1a and a binuclear Pt(II) complex 1b were also prepared. Complex 1a was coordinated by one cyclometalated ligand of dibenzo(f,h)quinoxaline, one chloride ion, and one N,N'-diphenylformamidine. Complex 1b was coordinated by one cyclometalated ligand of dibenzo(f,h)quinoxaline, two chloride ions, and two N,N'-diphenylformamidines. All of these three complexes were characterized by nuclear magnetic resonance (NMR) spectroscopy, high-resolution mass spectrometry (HRMS), elemental analyses, and single-crystal X-ray diffraction (XRD). The Pt-Pt distance in complex 2 was 2.8439(2) Å. It also exhibited a near-infrared (near-IR) emission at 887 nm in the pure solid state. On the other hand, complexes 1a and 1b exhibited triplet emission at 589 and 660 nm, respectively, in the pure solid state. Furthermore, in 2 wt% poly(Me methacrylate) (PMMA) films, complex 1a showed a triplet emission at 548 nm (with Φ = 84% and τ = 5.53 µs) and complex 1b showed an emission at 627 nm (with Φ = 79% and τ = 4.07 µs). Due to its great photophysical properties, complex 1b was deposited onto quartz plates for the detection of organic solvent vapors and it showed unique emission quenching for the vapor of tetrahydrofuran.

11.
J Orthop Surg (Hong Kong) ; 32(2): 10225536241257760, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38773724

RESUMO

Purpose: There are various surgical interventions available for the management of Chronic lateral ankle instability (CLAI). The Broström-Gould procedure has gained widespread recognition among foot and ankle specialists for its favorable surgical outcomes. However, with advancements in anatomical understanding and medical technology, further enhancements to the effectiveness of the Gould procedure are warranted. This study introduces a all-inside modified "outside-in" Broström -Gould procedure as an alternative approach for addressing lateral ankle instability. Methods: From August 2020 to October 2022, 40 patients with lateral ankle instability who underwent arthroscopic repair of the modified "outside-in" Broström-Gould procedure were retrospectively analyzed. All patients received standard non-surgical treatment before surgery for more than 6 months without symptom relief. Visual Analogue Scale (VAS) and American Orthopaedic Foot and Ankle Society (AOFAS) and Karlsson-Peterson score were used to evaluate the postoperative effect. Results: All patients were followed up for (14.62 ± 2.04) months. One year after operation, all patients could walk normally, ankle instability sensation disappeared, varus stress test and anterior drawer test were negative. The VAS , AOFAS and Karlsson-Peterson scores of all patients were significantly better compared with those before operation, and the difference between before and after operation was statistically significant. Conclusions: The modified "outside-in" Broström-Gould procedure can effectively treat CLAI, which can obtain satisfactory results. The procedure is straightforward, the impact is minimal, and the aesthetics are pleasing.


Assuntos
Instabilidade Articular , Humanos , Instabilidade Articular/cirurgia , Estudos Retrospectivos , Feminino , Masculino , Adulto , Seguimentos , Articulação do Tornozelo/cirurgia , Artroscopia/métodos , Doença Crônica , Ligamentos Laterais do Tornozelo/cirurgia , Adulto Jovem , Resultado do Tratamento , Pessoa de Meia-Idade
12.
Food Chem X ; 22: 101436, 2024 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-38742170

RESUMO

Fresh Allium mongolicum Regel (FA) and dried A. mongolicum Regel (DA) are significantly different in antioxidant activity. However, the relevant mechanisms have not yet been explored. We evaluated the antioxidant activities of two varieties of FA and DA and characterized their metabolites using targeted metabolomics. The effect of different metabolites on the antioxidant activity of A. mongolicum Regel was investigated by multivariate analysis. A total of 713 metabolites were detected in all samples. Pearson correlation analysis demonstrated that the key primary metabolites were directly and significantly correlated with the total phenolic content (TPC) and total flavonoid content (TFC), while the secondary metabolites were directly correlated with antioxidant activity. The higher antioxidant activity of DA may be mainly attributed to the higher TPC and TFC. This study revealed the potential mechanism by which drying enhances the antioxidant activity of A. mongolicum Regel.

13.
Food Chem ; 453: 139539, 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-38788638

RESUMO

The aim of this study was to investigate the effects of dietary Allium mongolicum Regel powder (AMRP) supplementation on the growth performance, meat quality, antioxidant capacity and muscle fibre characteristics of fattening Angus calves. Growth performance data and longissimus thoracis (LT) samples were collected from four groups of fattening Angus, which were fed either a basal diet (CON) or a basal diet supplemented with an AMRP dose of 10 (LAMR), 15 (MAMR), or 20 g/animal/day AMRP (HAMR) for 120 days before slaughter. AMRP addition to the feed improved growth performance and meat quality and altered muscle fibre type. Some responses to AMRP supplementation were dose dependent, whereas others were not. Together, the results of this study demonstrated that dietary supplementation with 10 g/animal/day AMRP was the optimal dose in terms of fattening calf growth performance, while 20 g/animal/day AMRP supplementation was the optimal dose in terms of meat quality.


Assuntos
Ração Animal , Antioxidantes , Suplementos Nutricionais , Carne , Animais , Bovinos/metabolismo , Bovinos/crescimento & desenvolvimento , Antioxidantes/metabolismo , Suplementos Nutricionais/análise , Ração Animal/análise , Carne/análise , Fibras Musculares Esqueléticas/metabolismo , Fibras Musculares Esqueléticas/efeitos dos fármacos , Pós/química , Masculino , Resposta ao Choque Térmico/efeitos dos fármacos , Allium/química , Allium/crescimento & desenvolvimento , Allium/metabolismo , Temperatura Alta
14.
World J Surg Oncol ; 11: 132, 2013 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-23742050

RESUMO

BACKGROUND: Golgi protein 73 (GP73) is a type II Golgi transmembrane protein. It is over-expressed in several cancers, including hepatocellular carcinomas, bile duct carcinomas, lung cancer and prostate cancer. However, there are few reports of GP73 in gastric cancer. This study is aimed at investigating the expression of GP73 and its relationship with clinical pathological characters in gastric cancer. METHODS: GP73 mRNA level was determined by quantitative real-time RT-PCR in 41 pairs of matched gastric tumorous tissues and adjacent non-tumorous mucosal tissues. Western blotting was also performed to detect the GP73 protein level. GP73 protein expression was analyzed by immunohistochemistry in 52 clinically characterized gastric cancer patients and 10 non-tumorous gastric mucosal tissue controls. RESULTS: The mRNA and protein level of GP73 were significantly down-regulated in gastric tumorous tissues compared with the non-tumorous mucosal tissues. In non-tumorous mucosa, strong diffuse cytoplasmic staining can be seen in cells located at the surface of the glandular and foveolar compartment; while in tumorous tissues, the staining was much weaker or even absent, and mainly in a semi-granular dot-like staining pattern. The expression level of GP73 protein was associated with patients' gender and tumor differentiation. CONCLUSIONS: GP73 was normally expressed in non-tumorous gastric mucosa and down-regulated in gastric cancer. Its expression in gastric cancer was correlated with tumor differentiation.


Assuntos
Biomarcadores Tumorais/metabolismo , Diferenciação Celular , Mucosa Gástrica/patologia , Proteínas de Membrana/metabolismo , Neoplasias Gástricas/patologia , Biomarcadores Tumorais/genética , Western Blotting , Estudos de Casos e Controles , Regulação para Baixo , Feminino , Seguimentos , Mucosa Gástrica/metabolismo , Humanos , Metástase Linfática , Masculino , Proteínas de Membrana/genética , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , RNA Mensageiro , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Neoplasias Gástricas/genética , Neoplasias Gástricas/metabolismo
15.
Zhonghua Yi Xue Za Zhi ; 93(42): 3375-8, 2013 Nov 12.
Artigo em Zh | MEDLINE | ID: mdl-24418035

RESUMO

OBJECTIVE: To explore the expressions of Jumonji domain containing protein 2C (JMJD2C) and hypoxia-inducible factor-1 alpha (HIF-1α) in gastric carcinoma and their relationship with clinicopathological characteristics. METHODS: A retrospective cohort study was performed for 110 gastric cancer (GC) patients at Zhejiang Provincial People's Hospital from 2005 to 2007. There were 78 males and 32 females with an average age of 57 (32-79) years. There was no preoperative radiochemotherapy.Immunohistochemical analysis was used to evaluate the expressions of JMJD2C and HIF-1α in 110 specimens of gastric cancer tissues and 80 normal adjacent tissues. RESULTS: The positive expression rates of JMJD2C and HIF-1α in GC (69.1% (76/110) and 73.6% (81/110) ) were significantly higher than those in normal tissues (both 0, both P < 0.05). The positive expression of JMJD2C in GC was significantly correlated with TNM stage, invasive depth, lymph node metastasis and distant metastasis (all P < 0.05). The positive expression of HIF-1α was significantly correlated with TNM stage, invasive depth, lymph node metastasis and distant metastasis (all P < 0.05).JMJD2C expression was positively correlated with HIF-1α expression (r = 0.219, P < 0.05) . The survival time of JMJD2C positive group and HIF-1α positive group were significantly shorter than those of the negative group ( (38 ± 4) vs (56 ± 6) months, (38 ± 4) vs (60 ± 6) months, χ(2) = 8.006, 7.218, both P < 0.01). The survival time of group positive in both JMJD2C and HIF-1α was significantly shorter than that of single positive or double negative groups (χ(2) = 10.425, P < 0.01). CONCLUSIONS: The over-expressions of JMJD2C and HIF-1α in gastric cancer tissues play a role in the growth, invasion and metastasis of gastric tumor. Both may be used to predict the prognosis of GC patients.


Assuntos
Subunidade alfa do Fator 1 Induzível por Hipóxia/metabolismo , Histona Desmetilases com o Domínio Jumonji/metabolismo , Neoplasias Gástricas/metabolismo , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/patologia
16.
Zhonghua Yi Xue Za Zhi ; 93(46): 3691-3, 2013 Dec.
Artigo em Zh | MEDLINE | ID: mdl-24534352

RESUMO

OBJECTIVE: To explore the indications, timing and approaches of surgical interventions for severe acute pancreatitis (SAP). METHODS: A retrospective study was performed for 115 hospitalized SAP patients from 2007 to 2013. RESULTS: Among them, 62 underwent surgery and another 53 were treated conservatively. The curative and mortality rates of surgical intervention and non-operation groups were 87.1%vs 84.9% (P > 0.05) and 9.68% vs 9.43% (P > 0.05) respectively. Twenty-five patients received early surgical intervention (<2 week) and another 37 delayed surgical intervention. The interval from diagnosis to surgical intervention of two groups were 7.5 ± 3.3 and 23.9 ± 8.5 days respectively. The mortality rates of early and delayed surgical groups were 16.0% and 5.4% respectively (P > 0.05). CONCLUSIONS: Individualized comprehensive therapy should be offered in the treatment of SAP. Timing of surgery for those with pancreatic necrosis and infection should be delayed to 3-4 weeks later until their general conditions permit.


Assuntos
Pancreatectomia , Pancreatite Necrosante Aguda/cirurgia , Feminino , Humanos , Masculino , Estudos Retrospectivos , Fatores de Tempo
17.
Toxins (Basel) ; 15(3)2023 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-36977088

RESUMO

Aflatoxin contamination of maize is a major food safety issue worldwide. The problem is of special significance in African countries because maize is a staple food. This manuscript describes a low-cost, portable, non-invasive device for detecting and sorting aflatoxin-contaminated maize kernels. We developed a prototype employing a modified, normalized difference fluorescence index (NDFI) detection method to identify potentially aflatoxin-contaminated maize kernels. Once identified, these contaminated kernels can be manually removed by the user. The device consists of a fluorescence excitation light source, a tablet for image acquisition, and detection/visualization software. Two experiments using maize kernels artificially infected with toxigenic Aspergillus flavus were implemented to evaluate the performance and efficiency of the device. The first experiment utilized highly contaminated kernels (71.18 ppb), while mildly contaminated kernels (1.22 ppb) were used for the second experiment. Evidently, the combined approach of detection and sorting was effective in reducing aflatoxin levels in maize kernels. With a maize rejection rate of 1.02% and 1.34% in the two experiments, aflatoxin reduction was achieved at 99.3% and 40.7%, respectively. This study demonstrated the potential of using this low-cost and non-invasive fluorescence detection technology, followed by manual sorting, to significantly reduce aflatoxin levels in maize samples. This technology would be beneficial to village farmers and consumers in developing countries by enabling safer foods that are free of potentially lethal levels of aflatoxins.


Assuntos
Aflatoxinas , Aflatoxinas/análise , Zea mays , Aspergillus flavus , Contaminação de Alimentos/análise , Alimentos
18.
Turk J Gastroenterol ; 34(12): 1197-1205, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37823316

RESUMO

BACKGROUND/AIMS: Gastric cancer is a prevalent malignancy with unfavorable prognosis partially resulting from its high metastasis rate. Clarifying the molecular mechanism of gastric cancer occurrence and progression for improvement of therapeutic efficacy and prognosis is needed. The study tended to delineate the role and regulatory mechanism of aldo-keto reductase 1B10 (AKR1B10) in gastric cancer progression. MATERIALS AND METHODS: The relationship of AKR1B10 expression with survival rate in gastric cancer was analyzed through Kaplan-Meier analysis. The mRNA levels of AKR1B10 and integrin subunit alpha 5 (ITGA5) in gastric cancer tissues and cell lines were measured by real-time quantitative polymerase chain reaction. Protein levels of AKR1B10 and integrin subunit alpha 5 were assayed via western blot. The molecular relationship between AKR1B10 and ITGA5 was analyzed by co-immunoprecipitation assay. Cell viability was assayed through Cell Counting Kit-8, invasion and migration of tumor cells was assessed through wound healing and transwell assays. Transwell assay was utilized to detect invasion. The adhesion of gastric cancer cells was detected using cell adhesion assays. RESULTS: The results unveiled that integrin subunit alpha 5 was upregulated, while AKR1B10 was downregulated in gastric cancer tissues and cells. Overexpressing AKR1B10 hindered gastric cancer cell proliferation, migration, invasion and adhesion. It was striking that we certified the inhibitory effect of AKR1B10 on integrin subunit alpha 5 expression and their (AKR1B10 and ITGA5)) negative relationship via bioinformatics method, real-time quantitative polymerase chain reaction, and co-immunoprecipitation assays. Via rescue experiments, it was concluded that AKR1B10 served as tumor suppressor potentially by ITGA5 expression in gastric cancer. CONCLUSION: Our results indicated that AKR1B10 inhibited migration, invasion, and adhesion of gastric cancer cells via modulation of ITGA5.


Assuntos
Aldo-Ceto Redutases , Integrinas , Neoplasias Gástricas , Humanos , Aldeído Redutase/genética , Aldeído Redutase/metabolismo , Aldo-Ceto Redutases/genética , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células/genética , Neoplasias Gástricas/patologia
19.
Medicine (Baltimore) ; 102(50): e36379, 2023 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-38115308

RESUMO

INTRODUCTION: This paper presents a case of a Chinese patient with advanced colon cancer who developed drug-induced interstitial lung disease while undergoing treatment with cetuximab combined with XELOX. PATIENT CONCERNS: A 75-year-old man with a history of colon cancer, had metastases in the liver, peritoneum, and lungs, which were initially treated with XELOX and cetuximab (0.4 g) in 2019. However, the lung metastases progressed, and the cetuximab dosage was adjusted to 0.9 g and then readjusted to 0.4 g. DIAGNOSIS: In January 2021, computed tomography revealed developed interstitial lung disease, leading to the discontinuation of chemotherapy and cetuximab. INTERVENTIONS: Receiving methylprednisolone pulse therapy. OUTCOMES: The patient experienced respiratory failure and passed away. The Naranjo Algorithm Assessment score indicated a probable relationship between cetuximab and the adverse event. CONCLUSION: This case highlights the need for regular pulmonary imaging examinations during cetuximab therapy, as drug-induced interstitial lung disease may be associated with the dose and duration of treatment.


Assuntos
Neoplasias do Colo , Doenças Pulmonares Intersticiais , Neoplasias Pulmonares , Masculino , Humanos , Idoso , Cetuximab/efeitos adversos , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/etiologia , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neoplasias Pulmonares/etiologia , Doenças Pulmonares Intersticiais/induzido quimicamente , Doenças Pulmonares Intersticiais/diagnóstico por imagem , Doenças Pulmonares Intersticiais/tratamento farmacológico
20.
Sci Rep ; 12(1): 20833, 2022 12 02.
Artigo em Inglês | MEDLINE | ID: mdl-36460663

RESUMO

Intrahepatic cholestasis of pregnancy (ICP) is a common liver disease during pregnancy, that has serious complications. This study aimed to compare the blood inflammation and biochemical markers of pregnant women with ICP in Southwest China and analyse their diagnostic value for ICP. A controlled cross-sectional study was conducted, and routine blood and biochemical indicators of 304 diagnosed ICP patients and 363 healthy pregnant women undergoing routine prenatal examination were assessed. The blood inflammatory indicators and biochemical indicators were compared between the ICP groups and normal groups. In this study, the levels of the ALT, AST, GGT, TBIL and DBIL biochemical indicators and the levels of WBC, neutrophils, NLR and PLR inflammatory indicators in the ICP group were significantly higher than those in healthy pregnant women (p < 0.001). The PA and lymphocytes of the ICP group were significantly lower than those of the normal group (p < 0.001). ROC curves showed that ALT and the NLR had higher predictive value for ICP. The GGT, TBA and NLR of pregnant women with ICP in the preterm group were significantly higher than those in the term group, and the combined NLR and TBA had a certain predictive value for preterm birth.


Assuntos
Gestantes , Nascimento Prematuro , Recém-Nascido , Gravidez , Humanos , Feminino , Prognóstico , Estudos Transversais , China , Inflamação/diagnóstico
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