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1.
Curr Probl Cancer ; 48: 101035, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37988903

RESUMO

OBJECTIVE: This research explored the relationship between a patient's nutritional state and inflammatory markers and the prognosis of their non-small cell lung cancer (NSCLC) treatment while receiving a combination of chemotherapy and immunotherapy. METHOD: This retrospective and single-center analysis included NSCLC patients who received a combination of chemotherapy and immunotherapy at the Department of Oncology at Shanghai Lung Hospital. Patients were categorized based on malnutrition, sarcopenia, sarcopenic obesity, and advanced-lung-cancer-inflammation-index (ALI) scores after collecting nutritional and inflammatory indices. Kaplan-Meier and the Cox models were utilized to analyze survival. RESULTS: There was a significant correlation between malnutrition, sarcopenia, sarcopenic obesity, and low ALI scores with lower overall survival (OS) and progression-free survival (PFS) (p < 0.05). Low ALI score and malnutrition were independent factors influencing patient survival in terms of both OS and PFS (p < 0.01). CONCLUSION: The nutritional and inflammatory indices of immunotherapy-treated NSCLC patients substantially affect their prognosis. Assessing these variables could aid in optimizing treatment strategies and improving patient outcomes. Additional research is required to comprehend the intricate relationship between nutrition, inflammation, and cancer progression and to develop individualized therapies.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Desnutrição , Pneumonia , Sarcopenia , Humanos , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Avaliação Nutricional , Estudos Retrospectivos , China/epidemiologia , Prognóstico , Imunoterapia , Inflamação , Desnutrição/etiologia , Desnutrição/terapia , Obesidade
2.
Int J Ophthalmol ; 16(10): 1676-1681, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37854374

RESUMO

AIM: To investigate time trends in myopia and high myopia prevalence over 6y among young university adults in China. METHODS: This is a 6-year series cross-sectional study from 2016 to 2021. Totally 4910 freshmen were enrolled and completed a questionnaire concerning age, gender, and disease history. Students with eye diseases were excluded after a detailed eye examination. The refractive status was measured by non-cycloplegic objective refraction and ocular parameters were measured by Lenstar 900. The examination followed the same protocol each year. Trends over time in myopia and high myopia prevalence, as well as ocular biometry parameters, were analyzed. RESULTS: From 2016 to 2021, the axial length (AL) and corneal radius (CR) increased significantly (P=0.002 for AL; P=0.04 for CR). However, the spherical equivalent (SE) and the ratio of axial length to the corneal radius (AL/CR) did not change significantly (P=0.59 for SE; P=0.24 for AL/CR). The frequency of AL ≥26.0 mm increased from 26.6% in 2016 to 29.3% in 2021 (P=0.05 for trend). The prevalence of myopia and high myopia did not change significantly in our study (P≥0.18). Compared to a similar cross-sectional study conducted 10 years ago, the prevalence of myopia decreased significantly (94.9% vs 91.8%, P<0.001). Whereas the prevalence of high myopia increased largely (18.12% vs 27.6%, P<0.001). CONCLUSION: The prevalence of high myopia increases in young university adults during 10y period. Myopia control should begin earlier in childhood. However, these interventions are still needed for high myopia even in young adulthood.

3.
Insect Sci ; 30(5): 1393-1404, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36576078

RESUMO

Systemic RNA interference deficient-1-like (SIL1) is considered a core component in dsRNA uptake in some insect species. Investigation related to the potential function of SIL1 in dsRNA uptake can contribute to a further understanding of RNA interference (RNAi) mechanisms in insects and agricultural pest control. However, the role of SIL1 in dsRNA uptake in insects such as aphids remains controversial. We have thoroughly analyzed the role of SIL1 from the model aphid Acyrthosiphon pisum (ApSIL1) in cellular dsRNA to clarify its function. First, the induced expression of ApSIL1 upon dsRNA oral exposure provided a vital clue for the possible involvement of ApSIL1 in cellular dsRNA uptake. Subsequent in vivo experiments using the RNAi-of-RNAi approach for ApSIL1 supported our hypothesis that the silencing efficiencies of reporter genes were reduced after inhibition of ApSIL1 expression. The impaired biological phenotypes of aphids, including cumulative average offspring, deformities of the nymph, and mortality upon pathogen infection, were then observed in the treatment group. Thereafter, in vitro dual-luciferase reporter assay showed compelling evidence that the luciferin signal was significantly attenuated when dsluciferase or dsGFP was transferred into ApSIL1-transfected Drosophila S2 cells. These observations further confirmed that the signal of Cy3-labeled dsRNA was rapidly attenuated with time in ApSIL1-transfected Drosophila S2 cells. Overall, these findings conclusively establish that ApSIL1 is involved in dsRNA uptake in A. pisum.


Assuntos
Afídeos , Animais , Interferência de RNA , Afídeos/fisiologia , Pisum sativum/genética , RNA de Cadeia Dupla/genética , RNA de Cadeia Dupla/metabolismo , Drosophila/genética
4.
International Eye Science ; (12): 1859-1864, 2023.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-996899

RESUMO

Femtosecond laser-assisted laser in situ keratomileusis(FS-LASIK)and small incision lenticule extraction(SMILE)are the mainstream corneal refractive surgeries at present. Despite efficacy, safety and predictability they have showed in refractive error correction, there are still complications relating to femtosecond laser, such as suction loss and opaque bubble layer(OBL), due to that the production of corneal flap or lenticule is dependent on the femtosecond laser. OBL is a complication that is unique to femtosecond laser surgery and the bubbles are generated from photo-disruptive effect towards corneal tissues which consisted of water vapor and carbon dioxide, and OBL gradually formed when the bubbles are trapped in the stroma. The bubbles can influence the intraoperative manipulation and postoperative visual quality. This review discusses the mechanism, grading, classification, and influencing factors of OBL and its effects on intraoperative manipulations and postoperative recovery, in the hope of providing reference and basis for further clinical studies.

5.
Chinese Pharmacological Bulletin ; (12): 685-692, 2023.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1013816

RESUMO

Aim To investigate the effect of p-hydroxybenzaldehyde ( HD) on intestinal fibrosis in mice based on mouse intestinal fibrosis model and in vitro EMT model,and to explore the underlying mechanism Methods HE staining, Masson staining, immunohisto-chemistry ,qPCR, Western blot and other experimental methods were used to verify the effect of HD on intestinal fibrosis in mice and the potential mechanism. Results In vivo experiments showed that compared with the normal group, the DSS-induced intestinal fibrosis model group had shortened colon, increased colon his-topathological score, increased collagen volume fraction, and significantly increased collagen I expression. After treatment with 4, 10, and 25 mg • kg

6.
Front Plant Sci ; 13: 952758, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35937339

RESUMO

Drought stress limits plant development and reproduction. Multiple mechanisms in plants are activated to respond to stress. The MYC2 transcription factor is a core regulator of the jasmonate (JA) pathway and plays a vital role in the crosstalk between abscisic acid (ABA) and JA. In this study, we found that SlMYC2 responded to drought stress and regulated stomatal aperture in tomato (Solanum lycopersicum). Overexpression of SlMYC2 repressed SlCHS1 expression and decreased the flavonol content, increased the reactive oxygen species (ROS) content in guard cells and promoted the accumulation of JA and ABA in leaves. Additionally, silencing the SlCHS1 gene produced a phenotype that was similar to that of the MYC2-overexpressing (MYC2-OE) strain, especially in terms of stomatal dynamics and ROS levels. Finally, we confirmed that SlMYC2 directly repressed the expression of SlCHS1. Our study revealed that SlMYC2 drove stomatal closure by modulating the accumulation of flavonol and the JA and ABA contents, helping us decipher the mechanism of stomatal movement under drought stress.

7.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 30(3): 797-803, 2022 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-35680808

RESUMO

AbstractObjective: To investigate the effect of γδ T cells on the proliferation, apoptosis and autophagy of multiple myeloma cells. METHODS: Peripheral blood mononuclear cells (PBMNC) were isolated from healthy volunteers, and stimulated with zoledronic acid (Zol) in combination with rhIL-2. Flow cytometry analysis was used to detected the purity of γδ T cells. γδ T cells were collected and co-cultured with RPMI-8226 or U-266 cells at different effector target ratios. The proliferation of RPMI-8226 or U-266 cell lines were detected by CCK-8. Cell cycle and cell apoptosis were detected by flow cytometry and Western blot.The expressions of autophagy-related proteins were detected by Western blot. RESULTS: γδ T cells can be expanded in vitro. γδ T cells could inhibit the proliferation of RPMI-8226 or U-266 cells, induced cell cycle arrest and promoted apoptosis in an effector target-dependent manner. In addition, γδ T cells could induce autophagy of myeloma cells, inhibited the expression of autophagy-related PI3K, P-AKT and P-mTOR, while increased the expression of AMPK and Beclin-1. CONCLUSION: γδ T cells can inhibit the proliferation of RPMI-8226 and U-266 myeloma cells, induce cell cycle arrest, promote apoptosis, and enhance autophagy in vitro. The mechanism may be related to inhibition of PI3K/AKT/mTOR signaling pathway and/or activation of AMPK/Beclin-1 signaling pathway.


Assuntos
Mieloma Múltiplo , Proteínas Quinases Ativadas por AMP/farmacologia , Apoptose , Autofagia , Proteína Beclina-1/farmacologia , Proliferação de Células , Humanos , Leucócitos Mononucleares/metabolismo , Mieloma Múltiplo/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Linfócitos T , Serina-Treonina Quinases TOR/metabolismo
8.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-939691

RESUMO

AbstractObjective: To investigate the effect of γδ T cells on the proliferation, apoptosis and autophagy of multiple myeloma cells.@*METHODS@#Peripheral blood mononuclear cells (PBMNC) were isolated from healthy volunteers, and stimulated with zoledronic acid (Zol) in combination with rhIL-2. Flow cytometry analysis was used to detected the purity of γδ T cells. γδ T cells were collected and co-cultured with RPMI-8226 or U-266 cells at different effector target ratios. The proliferation of RPMI-8226 or U-266 cell lines were detected by CCK-8. Cell cycle and cell apoptosis were detected by flow cytometry and Western blot.The expressions of autophagy-related proteins were detected by Western blot.@*RESULTS@#γδ T cells can be expanded in vitro. γδ T cells could inhibit the proliferation of RPMI-8226 or U-266 cells, induced cell cycle arrest and promoted apoptosis in an effector target-dependent manner. In addition, γδ T cells could induce autophagy of myeloma cells, inhibited the expression of autophagy-related PI3K, P-AKT and P-mTOR, while increased the expression of AMPK and Beclin-1.@*CONCLUSION@#γδ T cells can inhibit the proliferation of RPMI-8226 and U-266 myeloma cells, induce cell cycle arrest, promote apoptosis, and enhance autophagy in vitro. The mechanism may be related to inhibition of PI3K/AKT/mTOR signaling pathway and/or activation of AMPK/Beclin-1 signaling pathway.


Assuntos
Humanos , Proteínas Quinases Ativadas por AMP/farmacologia , Apoptose , Autofagia , Proteína Beclina-1/farmacologia , Proliferação de Células , Leucócitos Mononucleares/metabolismo , Mieloma Múltiplo/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Linfócitos T , Serina-Treonina Quinases TOR/metabolismo
9.
Am J Physiol Cell Physiol ; 321(1): C117-C133, 2021 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-34010066

RESUMO

Sepsis is a life-threatening condition that can lead to several organ failures including kidney. In this study, we investigated the roles of GAS5 and miR-579-3p in regulating cell pyroptosis in the sepsis-induced renal injury model. Lipopolysaccharide (LPS) treatment or cecal ligation and puncture (CLP) surgery was used to create the in vitro and in vivo sepsis-induced renal injury model. The interactions between GAS5 and miR-579-3p, and miR-579-3p and SIRT1 were determined by bioinformatic prediction, luciferase reporter assay, and RIP assay. In vitro cell pyroptosis was examined by flow cytometry marked with active caspase-1 and PI. The protein levels of IL-1ß and IL-18 induced by cell pyroptosis were quantified using ELISA assay. In vivo renal injuries were evaluated with HE and TUNEL stainings, bacterial load in serum and creatinine, and blood urea nitrogen content analyses. Expression levels of GAS5, miR-579-3p, pyroptosis, and SIRT1/PGC-1a/Nrf2 pathway-related molecules were evaluated by qRT-PCR or Western blot. GAS5 and SIRT1 were downregulated, whereas miR-579-3p was upregulated in in vitro and in vivo sepsis-induced renal injury models. GAS5 negatively and directly regulated miR-579-3p to reduce cell pyroptosis via the activation of SIRT1/PGC-1a/Nrf2 pathway. In addition, miR-579-3p suppressed PGC-1a/Nrf2 pathway to induce cell pyroptosis by directly targeting SIRT1. What's more, overexpression of GAS5, or knockdown of miR-579-3p, enhanced SIRT1 expression that led to the improved survival rate, reduced the weight loss, and relieved renal injuries in septic mice. Overexpression of GAS5 demonstrated protective effects against sepsis-induced renal injury via downregulating miR-579-3p and activating SIRT1/PGC-1α/Nrf2 pathway to inhibit cell pyroptosis.


Assuntos
Injúria Renal Aguda/genética , MicroRNAs/genética , Fator 2 Relacionado a NF-E2/genética , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo/genética , RNA Longo não Codificante/genética , Sepse/genética , Sirtuína 1/genética , Injúria Renal Aguda/metabolismo , Injúria Renal Aguda/mortalidade , Injúria Renal Aguda/patologia , Animais , Nitrogênio da Ureia Sanguínea , Caspase 1/genética , Caspase 1/metabolismo , Creatinina/sangue , Modelos Animais de Doenças , Células Epiteliais/efeitos dos fármacos , Células Epiteliais/metabolismo , Células Epiteliais/patologia , Regulação da Expressão Gênica , Genes Reporter , Humanos , Interleucina-18/genética , Interleucina-18/metabolismo , Interleucina-1beta/genética , Interleucina-1beta/metabolismo , Túbulos Renais Proximais/efeitos dos fármacos , Túbulos Renais Proximais/metabolismo , Túbulos Renais Proximais/patologia , Lipopolissacarídeos/farmacologia , Luciferases/genética , Luciferases/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos C57BL , MicroRNAs/metabolismo , Fator 2 Relacionado a NF-E2/metabolismo , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo/metabolismo , Piroptose/genética , RNA Longo não Codificante/metabolismo , Sepse/metabolismo , Sepse/mortalidade , Sepse/patologia , Transdução de Sinais , Sirtuína 1/metabolismo , Análise de Sobrevida
10.
Acta Anatomica Sinica ; (6): 182-188, 2021.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1015482

RESUMO

Objective To investigate the expression and role of Huntingtin-associated protein-1 (HAP-1) in the process of valproate acid (VP A) inducing neural stem cells (NSCs) into neurons. Methods The hippocampus NSCs of SD rats were isolated and cultured, Real-time PCR and Western blotting were used to detect HAP-1 mRNA and protein expression at day 0, day 1, day 3 and day 5 during the induction of VPA on NSCs differentiation into neurons ; Real-time PCR was used to detect the expression level of HAP-1 mRNA in multiple tissues of adult SD rats, as well as NSCs, neurons and astrocytes. After applying small interfering RNA technology to down-regulate the expression of HAP-1 mRNA in NSCs, Real-time PCR was used to detect the mRNA expression levels of neuron-specific molecules stathmin-2 ( Stmn-2), neuronal differentiation-1 (Neurod-1), microtubule-associated protein-2 (Map-2) and synapsin-1 (Syn-1), and Western blotting was used to detect the protein expression levels of neuron-specific marker β-tubulin III (Tuj-1). Immunofluorescence was used to detect the proportion of NSCs differentiated into Tuj-1 positive neurons, and to observe the development of neurons. Results At day 1 and day 3 after VPA treatment, the expression of HAP-1 mRNA and protein in the VPA group was significantly up-regulated; HAP-1 mRNA was predominantly expressed in the hippocampus, and its expression was higher in neurons, followed by NSCs, and minimally in astrocytes. After down-regulating HAP-1 with small interference technology, the proportion of NSCs differentiated into Tuj-1 positive neurons reduced, and neuron development became worse. Conclusion VPA may promote the differentiation of NSCs into neurons by up-regulating HAP-1 expression.

11.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-912779

RESUMO

Objective:To evaluate the implementation of the China Healthcare Improvement Initiative(CHII)from 2018 to 2020 in 143 tertiary public hospitals in China.Methods:In March 2019 and from January to March in 2021, 143 tertiary public hospitals in 31 provinces of China were investigated using the unified " medical institution questionnaire Ⅰ" and " medical institution Questionnaire Ⅱ" . The data were collected by means of hospital self-report and expert on-site scoring. Descriptive and inferential statistical analysis were used to analyze the data, and the data of two cross-sectional surveys were compared and analyzed.Results:The average score rate of implementing CHII in 143 sample hospitals in 2020 was 88.9%, which was higher than that in 2018(84.4%). The appointment diagnosis and treatment system, clinical pathway management system, day service, smart hospital and humanistic service were significantly improved. In 2020, the average score rate of logistics service, high quality nursing service and clinical pathway management system was higher than 95%, while the average score rate of day service, telemedicine system and medical social work system was lower than 85%. The total score rate of general hospitals was significantly higher than that of specialized hospitals( P<0.001). In 2020, the proportion of hospitals with full marks in 29 secondary indicators(74.4%)was more than 80%, reaching the standard level. Conclusions:The implementation level of CHII in tertiary public hospitals in China has been improved continuously and made significant progress, but some dimensions and indicators need to be further improved.

12.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 28(2): 700-703, 2020 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-32319420

RESUMO

Abstract  Autophagy is a process in which cells in eukaryotes degrades abnormal proteins and organelles, thus it possesses important effects on the survival of normal cells and tumor cells. The related studies have shown that autophagy is widely present in the life activities of myeloma cells, which not only protects myeloma cells, but also induces death, and plays an important role in survival, proliferation, invasion and migration of myeloma cells and the treatment of multiple myeloma. This review focuses on the progress of regulating autophagy in the treatment of multiple myeloma.


Assuntos
Autofagia , Mieloma Múltiplo , Apoptose , Linhagem Celular Tumoral , Proliferação de Células , Humanos
13.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-1008456

RESUMO

To analyze the medication regularity of traditional Chinese medicine(TCM) prescriptions for gastropyretic excessiveness diabetes recorded in Chinese Medicine Prescriptions Dictionary. A total of 103 eligible prescriptions were input into the system platform, and the Apriori algorithm was used to analyze their medication regularity. The 103 prescriptions for gastropyretic excessiveness diabetes were selected from the system, and 29 herb medicines were found with frequency of usage more than 8. Totally 33 commonly used herbal pairs(support degree≥10), twenty-three 3-herb core combinations(support degree≥8, confidence values≥0.5), and twenty-one 4-herb core combinations(confidence values≥0.5) were discovered after the medication regularity analysis by Apriori algorithm. The herbal medicine combinations with the highest correlation degree were discovered after the association rule analysis on the 103 prescriptions(support degree≥10, confidence values≥0.5). The four properties, five tastes, channel distributions and frequency of dose of the 103 prescriptions were also obtained after the corresponding analysis. According to the analysis and summary of the above data, the combination of Trichosanthis Radix, Anemarrhenae Rhizoma, Coptidis Rhizoma and Ophiopogonis Radix could reflect the medication regularity of TCM prescriptions for gastropyretic excessiveness diabetes to a certain degree, which is of great significance in guiding value in clinic.


Assuntos
Humanos , Mineração de Dados , Diabetes Mellitus/tratamento farmacológico , Prescrições de Medicamentos/estatística & dados numéricos , Medicamentos de Ervas Chinesas/administração & dosagem , Medicina Tradicional Chinesa
14.
Medicine (Baltimore) ; 98(8): e14618, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30813191

RESUMO

To analyze the clinical characteristics, treatment modalities and outcomes of adult renal solitary fibrous tumors (SFT) treated at a single institution. Demographic, diagnostic, surgical, and pathological findings of patients who had undergone radical nephrectomy (RN) due to renal SFT were collected from the database of a single institution and were retrospectively reviewed. Ten patients (6 men and 4 women) were diagnosed with renal SFT in our institution between January 1, 2000 and December 31, 2016. The mean age was 50.9 ±â€Š8.2 years (range, 38-63 years). Of the 10 patients, 6 were asymptomatic, 2 presented with flank pain, 1 presented with abdominal discomfort, and 1 presented with haematuria. Computed tomography scans were obtained for all patients. Open RN was performed on 6 patients, and laparoscopic RN was performed on 4 patients. The mean tumor size was 10.23 ±â€Š4 cm (range, 5.3-19 cm). Pathological diagnosis revealed that the tumors in 8 patients were benign, while those in the other 2 patients were malignant renal SFT. No recurrence occurred during a mean follow-up period of 47.3 ±â€Š21.5 months (range, 16-85 months). Renal SFT is extremely rare, and its diagnosis may be challenging because of a lack of typical imaging manifestations. RN is a safe treatment modality for benign or low-grade malignant renal SFT, ensuring favorable outcomes.


Assuntos
Neoplasias Renais/patologia , Laparoscopia/métodos , Nefrectomia/métodos , Tumores Fibrosos Solitários/patologia , Adulto , Feminino , Seguimentos , Humanos , Rim/patologia , Neoplasias Renais/cirurgia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Tumores Fibrosos Solitários/cirurgia , Tomografia Computadorizada por Raios X , Resultado do Tratamento
15.
Oncotarget ; 9(55): 30552-30560, 2018 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-30093968

RESUMO

BACKGROUND & AIM: At present, numerous reports have shown that high/positive expression of tissue vascular endothelial growth factor (VEGF) may be associated with the prognosis of patients with ovarian cancer. However, their results still remained controversy. Thus, this meta-analysis was designed to analyze and assess the prognostic value of tissue VEGF expression in patients with ovarian cancer. METHOD: We searched PubMed, Embase, Cochrane Library and Web of Science to October, 2017. Hazard Ratio (HR) with its 95% confidence intervals (CIs) was used to evaluate the association between high/positive expression of tissue VEGF and the prognosis of ovarian cancer patients. All statistical analyses were performed using standard statistical procedures provided in RevMan 5.2. RESULT: A total of 18 studies (including 1145 patients) were included for this meta-analysis. The positive/high expression of tissue VEGF had an obvious association with overall survival (OS) (HR 2.24, 95% CI 1.36-3.70; P=0.002), progression-free survival (PFS) (HR 1.60, 95% CI 1.11-2.31; P=0.01) and disease-free survival (DFS) (HR 3.49, 95% CI 1.27-9.56; P=0.02) of patients with ovarian cancer respectively. CONCLUSION: The present meta-analysis indicated that positive/high expression of tissue VEGF may have a close association with survival of ovarian cancer.

16.
Ann Clin Lab Sci ; 48(6): 743-750, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30610044

RESUMO

Bone marrow mesenchymal stromal cells (BMSCs) have positive therapeutic effects on inflammation associated diseases. However, the underlying mechanism is largely unknown. This study was conducted to investigate whether BMSCs could alleviate the inflammation reaction in lipopolysaccaride (LPS)-induced acute kidney injury (septic-AKI) of rats via inhibition of toll-like receptors (TLR4)-nuclear factor-kappa B (NF-κB) signaling pathway. The septic-AKI rat model was established by injecting the 1ml/mg LPS through the femoral vein. Based on this model, rats were subjected to BMSC transplantation, PDTC (a kind of NF-κB inhibitor) administration alone, and combined treatment of the first two together. Results showed that LPS treatment caused the increases of the concentration of blood urea nitrogen (BUN) and serum creatinine (SCr), accompanied by tissue injury and the up-regulation of TLR4 and NF-κB, that was its key downstream signaling molecule, in both mRNA and protein level. Notably, it has been found that BMSCs transplantation significantly reversed the already upregulated concentration of BUN and SCr, dramatically attenuated the event of the tissue injury, and prominently reduced mortality after AKI. These were paralleled by down-regulation of the level of TLR4 and NF-κB. These effects of BMSCs transplantation were similar to those of PDTC treatment. Importantly, the effects in the combination therapy of BMSCs transplantation and PDTC group were much stronger than those of either BMSCs or PDTC used alone. These findings suggest that BMSCs transplantation contributes to therapeutic effects in LPS-induced AKI rat model, and that the most obvious effects occurred in the combined treatment group, with BMSCs and PDTC together, which was tightly associated with inhibition of the TLR4-NF-κB signaling pathway.


Assuntos
Injúria Renal Aguda/complicações , Inflamação/etiologia , Inflamação/cirurgia , Transplante de Células-Tronco Mesenquimais/métodos , Transdução de Sinais/fisiologia , Injúria Renal Aguda/induzido quimicamente , Análise de Variância , Animais , Antioxidantes/uso terapêutico , Nitrogênio da Ureia Sanguínea , Modelos Animais de Doenças , Feminino , Regulação da Expressão Gênica/fisiologia , Lipopolissacarídeos/toxicidade , Células-Tronco Mesenquimais/fisiologia , Camundongos Endogâmicos C57BL , NF-kappa B/genética , NF-kappa B/metabolismo , Prolina/análogos & derivados , Prolina/uso terapêutico , RNA Mensageiro/metabolismo , Ratos , Tiocarbamatos/uso terapêutico , Receptor 4 Toll-Like/genética , Receptor 4 Toll-Like/metabolismo , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/metabolismo
17.
International Eye Science ; (12): 1117-1120, 2018.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-695387

RESUMO

· AIM:To investigate the effects and safety of intravitreal injection of Conbercept combined with macular grid pattern photocoagulation for macular edema secondary to non-ischemic branch retinal vein occlusion (BRVO).· METHODS:A total of 38 patients (38 eyes) with macular edema following non-ischemic BRVO were retrospectively analyzed.All patients were given best corrected visual acuity(BCVA),intraocular pressure,slit lamp with preset lens,optic coherent tomography(OCT) and fluorescence fundus angiography (FFA) examination.The BCVA and central macular thickness (CMT) were observed before and 1wk,1,2,3,6,9 and 12mo after treatment.The change in pre-treatment and post-treatment were compared,and the related complications were recorded.· RESULTS:BCVA before treatment and 1wk,1,2,3,6,9 and 12mo after treatment were 0.89±0.62,0.64±0.59,0.55±0.62,0.46±0.43,0.53±0.67,0.43±0.38,0.42±0.29,0.40 ± 0.30,the difference was statistically significant between that before and after treatment (P<0.001),while the BCVA after treatment showed no significant difference with each other (P> 0.05).CMT were 683.25 ± 236.47,298.65±116.12,276.89±107.28,281.55±99.62,251.41 ± 119.47,240.58±88.62,231.74±75.36,209.51±84.68pm,the difference was statistically significant between that before and after treatment (P< 0.001),while the those after treatment showed no significant difference with each other (P> 0.05).There were 11 eyes received one injection,18 eyes with two injections,2 eyes with 3,3 eyes with 4,and 4 eyes more than 4,the average injection was 2.01±1.42.The CMT decreased after every injection.The intraocular hypertension and other complications were not seen after treatment.· CONCLUSION:Intravitreal injection of conbercept combined with macular grid pattern photocoagulation for macular edema to non-ischemic BRVO can reduce the macular edema and improve BCVA,which is effective and safety.

18.
J Inorg Biochem ; 172: 23-33, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28419923

RESUMO

Two rhodamine-active probes RBAI (Rhodamine B-di-Aminobenzene-phenyl Isothiocyanate) and RGAI (Rhodamine 6G-di-Aminobenzene-phenyl Isothiocyanate) were designed, synthesized and characterized. The probes were developed as fluorescent and colorimetric chemodosimeters in ethanol-water solution with a broad pH span (5-10) and high selectivity toward Hg2+ but no significant response toward other common competitive cations. The Hg2+-promoted ring opening of spirolactam of the rhodamine moiety induced cyclic guanylation of the thiourea moiety, which resulted in the dual chromo- and fluorogenic observation (off-on). Cytotoxicity and bioimaging studies by L929 living cells and living mice indicated that the probes were negligible cytotoxicity, cell permeable and suitable for detecting Hg2+ in biological environments. Moreover, the new probes not only displayed excellent abilities for the successful detection of Hg2+ in L929 living cells and living mice but also able to detect Hg2+ by adsorbing on solid surfaces and quantitative detection of Hg2+ in real water samples with good recovery (more than 90%), indicating that they have promising prospect for application for Hg2+ sensing in environmental and biological sciences.


Assuntos
Colorimetria/métodos , Corantes Fluorescentes/química , Mercúrio/análise , Rodaminas/síntese química , Tiocianatos/síntese química , Animais , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Cristalografia por Raios X , Corantes Fluorescentes/síntese química , Corantes Fluorescentes/toxicidade , Água Doce/química , Limite de Detecção , Camundongos , Estrutura Molecular , Rodaminas/química , Rodaminas/farmacologia , Tiocianatos/química , Tiocianatos/farmacologia
19.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-475989

RESUMO

Objective To assess circulating miRNAs’diagnosis value of breast cancer.Methods Conducted PubMed,Embase, the Cochrane Library,CNKI,cqvip,and wangfang database search in any language before June 2014.A total of 12 publica-tions were included in the meta-analysis.Then,the meta-analysis was performed using Meta-Disc 1.4.Meanwhile,the diag-nostic sensitivity,specitivity,positive likelyhood ratio,negative likelyhood ratio and diagnostic odds ratio were pooled by ran-dom-effects models.And the overall diagnostic performance was estimated by summary receiver operating characteristic curves (sROC)approaches.Stata12.0 was used to evaluated the publication bias.Results The pooled sensitivity was 80%(95%CI 0.77~0.82),specificity was 78% (95%CI 0.75~0.81);positive likelihood ratio was 4.09 (95%CI 2.80~5.99), negative likelihood ratio was 0.22 (95%CI 0.15~0.31),diagnostic odds rations was 20.64 (95%CI 10.24~41.62).The AUC for circulating miRNAs was 0.89 with Q value of 0.82.Publication bias was observed in existing literatures.Conclu-sion Circulating miRNAs is a potential biomarker in the diagnosis of breast cancer.

20.
Artigo em Chinês | WPRIM (Pacífico Ocidental) | ID: wpr-458508

RESUMO

BACKGROUND:The aid treatment of aphasia is mainly achieved through computer training system, and the applied software of the market at present is mainly Chinese aphasia training system software. The software for a native Uighur aphasia patient does not apply and no research of Uygur language aphasia training software has been reported. OBJECTIVE:To design a clinic oriented training software for Uighur aphasia, based on training specifications of rehabilitative therapist in the treatment of Uighur aphasia patients. METHODS:The experiment was conducted from January 2013 to December 2013 in South and North areas of Xinjiang Uygur Autonomous Region, deeply researching the common and familiar life material of the Uyghur’s and combining the life custom of the Uyghur’s, to screen the relevant materials of the speech rehabilitation training, preliminary build up the living language material database of the Uyghur’s. Basing on this database, we designed the computer-assisted application software which has the Uygur and Chinese double interface. The software is designed by the software research and development personnel in accordance with the requirements of the members of our group, with Uygur and Chinese double interface speech rehabilitation training software. 30 Uygur aphasiac patients after stroke in Xinjiang were screened for clinical trials and evaluation, the software after many corrections, detailed recorded the valuable dates and the problems existing in the experimental stage. And we constantly communicate with the software designers so as to repeatedly revise the wrong in the process of training, and eventualy developing a set of basic mature Uygur language aphasia and training software. RESULTS AND CONCLUSION:A set of basic mature Uygur aphasia training software was designed. With the research and development of the Uighur aphasia training software, speech therapists of Xinjiang get a fuly functional, easy operation, flexible extension training tool, which help to reduce the workload of speech therapists and improve the clinical efficiency.

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