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1.
Cir Cir ; 92(3): 314-323, 2024.
Article de Anglais | MEDLINE | ID: mdl-38862107

RÉSUMÉ

OBJECTIVE: The objective of this study was to investigate the clinical effect of overlap anastomosis and functional end-to-end anastomosis (FEEA) in laparoscopic radical resection of colorectal cancer (CRC). METHODS: The clinical data of 180 patients who underwent laparoscopic radical resection of CRC and side-to-side anastomosis were retrospectively collected; the patients were divided into the Overlap group and FEEA group, according to the anastomosis method that was used to treat them. RESULTS: The Overlap group had a shorter operation time, anastomosis time, post-operative hospital stay, post-operative feeding time, and post-operative exhaust time than the FEEA group (p < 0.05). The total incidence of post-operative complications was 14.4% (13/90) in the FEEA group and 0.7% (6/90) in the Overlap group, and there was no significant difference between the two groups (p > 0.05). CONCLUSIONS: Overlapping anastomosis can shorten the operation time and accelerate the recovery of intestinal function without increasing the incidence of post-operative complications, and it will not affect the quality of life and survival of patients in the short term after surgery.


OBJETIVO: Investigar el efecto clínico de la anastomosis superpuesta y de la anastomosis funcional de extremo a extremo (AFEE) en la resección radical laparoscópica del cáncer colorrectal (CCR). MÉTODO: Se recolectaron retrospectivamente los datos clínicos de 180 pacientes sometidos a resección radical laparoscópica de CCR y anastomosis de lado a lado. Los pacientes se dividieron en grupo de anastomosis superpuesta y grupo AFEE, según el método de anastomosis que se utilizó para tratarlos. RESULTADOS: El grupo de anastomosis superpuesta tuvo un tiempo de operación, un tiempo de anastomosis, una estancia hospitalaria posoperatoria, un tiempo de alimentación posoperatorio y un tiempo de escape posoperatorio más cortos que el grupo AFEE (p < 0.05). La incidencia total de complicaciones posoperatorias fue del 14.4% (13/90) en el grupo AFEE y del 0.7% (6/90) en el grupo de anastomosis superpuesta, y no hubo diferencias significativas entre los dos grupos (p > 0.05). CONCLUSIONES: La anastomosis superpuesta puede acortar el tiempo operatorio y acelerar la recuperación de la función intestinal sin aumentar la incidencia de complicaciones posoperatorias, y sin afectar la calidad de vida y la supervivencia de los pacientes a corto plazo después de la cirugía.


Sujet(s)
Anastomose chirurgicale , Côlon , Tumeurs colorectales , Laparoscopie , Durée opératoire , Complications postopératoires , Humains , Anastomose chirurgicale/méthodes , Laparoscopie/méthodes , Mâle , Femelle , Études rétrospectives , Adulte d'âge moyen , Complications postopératoires/épidémiologie , Complications postopératoires/étiologie , Tumeurs colorectales/chirurgie , Côlon/chirurgie , Sujet âgé , Résultat thérapeutique , Durée du séjour/statistiques et données numériques , Colectomie/méthodes , Adulte
2.
Biol Res ; 57(1): 24, 2024 May 06.
Article de Anglais | MEDLINE | ID: mdl-38711133

RÉSUMÉ

Despite the record speed of developing vaccines and therapeutics against the SARS-CoV-2 virus, it is not a given that such success can be secured in future pandemics. In addition, COVID-19 vaccination and application of therapeutics remain low in developing countries. Rapid and low cost mass production of antiviral IgY antibodies could be an attractive alternative or complementary option for vaccine and therapeutic development. In this article, we rapidly produced SARS-CoV-2 antigens, immunized hens and purified IgY antibodies in 2 months after the SARS-CoV-2 gene sequence became public. We further demonstrated that the IgY antibodies competitively block RBD binding to ACE2, neutralize authentic SARS-CoV-2 virus and effectively protect hamsters from SARS-CoV-2 challenge by preventing weight loss and lung pathology, representing the first comprehensive study with IgY antibodies. The process of mass production can be easily implemented in most developing countries and hence could become a new vital option in our toolbox for combating viral pandemics. This study could stimulate further studies, optimization and potential applications of IgY antibodies as therapeutics and prophylactics for human and animals.


Sujet(s)
Anticorps neutralisants , Anticorps antiviraux , COVID-19 , Poulets , Jaune d'œuf , Immunoglobulines , SARS-CoV-2 , Animaux , SARS-CoV-2/immunologie , Anticorps neutralisants/immunologie , COVID-19/prévention et contrôle , COVID-19/immunologie , Poulets/immunologie , Cricetinae , Immunoglobulines/immunologie , Jaune d'œuf/immunologie , Anticorps antiviraux/immunologie , Femelle , Mesocricetus , Vaccins contre la COVID-19/immunologie
4.
Clin Transl Oncol ; 26(7): 1613-1622, 2024 Jul.
Article de Anglais | MEDLINE | ID: mdl-38218916

RÉSUMÉ

PURPOSE: To investigate the optimal surgical margin and prognostic risk factors for borderline and malignant phyllodes tumors (PTs). METHODS: A retrospective analysis was conducted on patients with borderline and malignant PTs at our hospital from 2011 to 2022. Univariate and multivariate Cox proportional hazard models were employed to analyze the effects of various variables on local recurrence-free survival (LRFS) and disease-free survival (DFS). RESULTS: This study comprised 150 patients, 85 classified as borderline and 65 as malignant. During a median follow-up of 66 months (range: 3-146 months), 34 cases (22.7%) experienced local recurrence, 9 cases (6.0%) exhibited distant metastasis, and 7 cases (4.7%) resulted in death. Irrespective of the histological subtypes, patients with surgical margins ≥ 1 cm exhibit significantly higher 5-year LRFS and 5-year DFS rates compared to those with margins < 1 cm. Among patients with initial margins < 1 cm, LRFS (P = 0.004) and DFS (P = 0.003) were improved in patients reoperated to achieve margins ≥ 1 cm. Surgical margin < 1 cm (HR = 2.567, 95%CI 1.137-5.793, P = 0.023) and age < 45 years (HR = 2.079, 95%CI 1.033-4.184, P = 0.040) were identified as independent risk factors for LRFS. Additionally, surgical margin < 1 cm (HR = 3.074, 95%CI 1.622-5.826, P = 0.001) and tumor size > 5 cm (HR = 2.719, 95%CI 1.307-5.656, P = 0.007) were determined to be independent risk factors for DFS. CONCLUSIONS: A negative surgical margin of at least 1 cm (with secondary resection if necessary) should be achieved for borderline and malignant PTs. Tumor size > 5 cm and age < 45 years were predictive of recurrence, suggesting multiple therapy modalities may be considered for these high-risk patients.


Sujet(s)
Tumeurs du sein , Marges d'exérèse , Récidive tumorale locale , Tumeur phyllode , Humains , Tumeur phyllode/chirurgie , Tumeur phyllode/anatomopathologie , Tumeur phyllode/mortalité , Femelle , Études rétrospectives , Adulte , Tumeurs du sein/anatomopathologie , Tumeurs du sein/chirurgie , Tumeurs du sein/mortalité , Adulte d'âge moyen , Pronostic , Récidive tumorale locale/anatomopathologie , Récidive tumorale locale/chirurgie , Jeune adulte , Adolescent , Survie sans rechute , Sujet âgé , Modèles des risques proportionnels , Facteurs de risque , Études de suivi
5.
Biol. Res ; 572024.
Article de Anglais | LILACS-Express | LILACS | ID: biblio-1564039

RÉSUMÉ

Despite the record speed of developing vaccines and therapeutics against the SARS-CoV-2 virus, it is not a given that such success can be secured in future pandemics. In addition, COVID-19 vaccination and application of therapeutics remain low in developing countries. Rapid and low cost mass production of antiviral IgY antibodies could be an attractive alternative or complementary option for vaccine and therapeutic development. In this article, we rapidly produced SARS-CoV-2 antigens, immunized hens and purified IgY antibodies in 2 months after the SARS-CoV-2 gene sequence became public. We further demonstrated that the IgY antibodies competitively block RBD binding to ACE2, neutralize authentic SARS-CoV-2 virus and effectively protect hamsters from SARS-CoV-2 challenge by preventing weight loss and lung pathology, representing the first comprehensive study with IgY antibodies. The process of mass production can be easily implemented in most developing countries and hence could become a new vital option in our toolbox for combating viral pandemics. This study could stimulate further studies, optimization and potential applications of IgY antibodies as therapeutics and prophylactics for human and animals.

6.
Braz J Microbiol ; 54(4): 2991-3003, 2023 Dec.
Article de Anglais | MEDLINE | ID: mdl-37921953

RÉSUMÉ

Endophytic bacteria play important roles in medicinal plant growth, abiotic stress, and metabolism. Mirabilis himalaica (Edgew.) Heimerl is known for its medicinal value as Tibetan traditional plant; however, little is known about the endophytic bacteria associated with this plant in different geographic conditions and vegetal tissues. To compare the endophytic bacterial community associated with this plant in different geographic conditions and vegetal tissues, we collected the leaves, stems, and roots of M. himalaica from five locations, Nongmu college (NM), Gongbujiangda (GB), Zhanang County (ZL), Lang County (LX), and Sangri County (SR), and sequenced the 16S rRNA V5-V7 region with the Illumina sequencing method. A total of 522,450 high-quality sequences and 4970 operational taxonomic units (OTUs) were obtained. The different tissues from different locations harbored unique bacterial assemblages. Proteobacteria and Actinobacteria were the dominant phyla in all the samples, while the dominant genera changed based on the different tissues. The endophytic bacterial structures in the leaf and stem tissues were different compared to root tissues. Redundancy analysis (RDA) showed that the endophytic bacterial community was significantly correlated with pH, available phosphorus (AP), total phosphorus (TP), total nitrogen (TN), and soil organic matter (SOM). These findings suggested that the geographic conditions, climate type, ecosystem type, and tissues determined the endophytic bacterial composition and relative abundances. This conclusion could facilitate an understanding of the relationship and ecological function of the endophytic bacteria associated with M. himalaica and provide valuable information for artificial planting of M. himalaica and identifying and applying functional endophytic bacteria.


Sujet(s)
Mirabilis , Plantes médicinales , Humains , ARN ribosomique 16S/génétique , Mirabilis/génétique , Mirabilis/métabolisme , Écosystème , Bactéries/génétique , Phosphore/métabolisme , Racines de plante/microbiologie , Endophytes/génétique
7.
Sci Total Environ ; 905: 166802, 2023 Dec 20.
Article de Anglais | MEDLINE | ID: mdl-37683854

RÉSUMÉ

Over the past two decades, soybean cultivation has become one of the principal replacements for forests in the Brazilian Amazon. Previous studies showed that the conversion of forests into large-scale soybean farms has different effects on local and regional climate than other forms of land use, e.g., conversion to pasture. The bio-geophysical feedbacks that lead to changes in temperature and rainfall caused by the expansion of commodity crops is not fully understood, and this has implications for both modelling potential future climatic change and understanding its impact. Here we performed model simulations to characterize the feedback to climate caused by the replacement of Amazonian forests with soybean and pastures. Our results show that: when compared to deforestation caused by pastures, the conversion of forests into soybean plantations results in more pronounced changes in the atmospheric boundary layer. Because they are characterized by a period of the year with bare soil, soybean fields transmit more long-wave radiation to the atmosphere than pastures, leading to an increase in boundary layer average temperature by 2.4 K. Although soybean plantations tend to strengthen convective lifting, the decrease in boundary layer water vapor content plays a decisive role in reducing rainfall. Finally, we demonstrate that the climatic impacts associated with the replacement of forests by soybean is likely to be magnified with agricultural expansion along new frontiers in the northern and western regions of the Amazon basin due to a more pronounced reduction in water vapor content.


Sujet(s)
Glycine max , Vapeur , Rétroaction , Conservation des ressources naturelles , Forêts , Brésil
8.
Lancet Public Health ; 8(9): e691-e700, 2023 09.
Article de Anglais | MEDLINE | ID: mdl-37633678

RÉSUMÉ

BACKGROUND: The association between duration of smoking abstinence before non-small-cell lung cancer (NSCLC) diagnosis and subsequent survival can influence public health messaging delivered in lung-cancer screening. We aimed to assess whether the duration of smoking abstinence before diagnosis of NSCLC is associated with improved survival. METHODS: In this retrospective, pooled analysis of cohort studies, we used 26 cohorts participating in Clinical Outcomes Studies of the International Lung Cancer Consortium (COS-ILCCO) at 23 hospitals. 16 (62%) were from North America, six (23%) were from Europe, three (12%) were from Asia, and one (4%) was from South America. Patients enrolled were diagnosed between June 1, 1983, and Dec 31, 2019. Eligible patients had smoking data before NSCLC diagnosis, epidemiological data at diagnosis (obtained largely from patient questionnaires), and clinical information (retrieved from medical records). Kaplan-Meier curves and multivariable Cox models (ie, adjusted hazard ratios [aHRs]) were generated with individual, harmonised patient data from the consortium database. We estimated overall survival for all causes, measured in years from diagnosis date until the date of the last follow-up or death due to any cause and NSCLC-specific survival. FINDINGS: Of 42 087 patients with NSCLC in the COS-ILCCO database, 21 893 (52·0%) of whom were male and 20 194 (48·0%) of whom were female, we excluded 4474 (10·6%) with missing data. Compared with current smokers (15 036 [40·0%] of 37 613), patients with 1-3 years of smoking abstinence before NSCLC diagnosis (2890 [7·7%]) had an overall survival aHR of 0·92 (95% CI 0·87-0·97), patients with 3-5 years of smoking abstinence (1114 [3·0%]) had an overall survival aHR of 0·90 (0·83-0·97), and patients with more than 5 years of smoking abstinence (10 841 [28·8%]) had an overall survival aHR of 0·90 (0·87-0·93). Improved NSCLC-specific survival was observed in 4301 (44%) of 9727 patients who had quit cigarette smoking and was significant at abstinence durations of more than 5 years (aHR 0·87, 95% CI 0·81-0·93). Results were consistent across age, sex, histology, and disease-stage distributions. INTERPRETATION: In this large, pooled analysis of cohort studies across Asia, Europe, North America, and South America, overall survival was improved in patients with NSCLC whose duration of smoking abstinence before diagnosis was as short as 1 year. These findings suggest that quitting smoking can improve overall survival, even if NSCLC is diagnosed at a later lung-cancer screening visit. These findings also support the implementation of public health smoking cessation strategies at any time. FUNDING: The Alan B Brown Chair, The Posluns Family Fund, The Lusi Wong Fund, and the Princess Margaret Cancer Foundation.


Sujet(s)
Carcinome pulmonaire non à petites cellules , Tumeurs du poumon , Humains , Femelle , Mâle , Études rétrospectives , Carcinome pulmonaire non à petites cellules/diagnostic , Tumeurs du poumon/diagnostic , Études de cohortes , Fumer/épidémiologie
9.
Clinics (Sao Paulo) ; 78: 100202, 2023.
Article de Anglais | MEDLINE | ID: mdl-37130488

RÉSUMÉ

PURPOSES: Braided and laser-cut stents both are efficacious and safe for coiling intracranial aneurysms. The study aimed to compare outcomes following braided stent-assisted coil embolization versus laser engraved stent-assisted coil embolization in 266 patients who were diagnosed with unruptured intracranial aneurysms of different types and locations. METHODS: Patients with unruptured complex intracranial aneurysms underwent braided (BSE cohort, n = 125) or laser engraved (LSE cohort, n = 141) stent-assisted embolization. RESULTS: The deployment success rate was higher for patients of the LSE cohort than those of the BSE cohort (140 [99%] vs. 117 [94%], p = 0.0142). Seventy-one (fifty-seven percentages) and 73 (52%) were coil embolization procedure success rates of the BSE and the LSE cohorts. Periprocedural intracranial hemorrhage was higher in patients of the BSE cohort than those of the LSE cohort (8 [6%] vs. 1 [1%], p = 0.0142). Four (three percentages) patients from the LSE cohort and 3 (2%) patients from the BSE cohort had in-stent thrombosis during embolization. Permanent morbidities were higher in patients of the LSE cohort than those of the BSE cohort (8 [6%] vs. 1 [1%], p = 0.0389). Higher successful procedures (76% vs. 68%) and fewer postprocedural intracranial hemorrhage (0% vs. 5%) and mortality (0% vs. 5%) were reported for patients of the BSE cohort in posterior circulation aneurysmal location than those of the LSE cohort. Laser engraved stent has fewer problems with deployment and may have better periprocedural and follow-up outcomes after embolization. CONCLUSIONS: Braided stent-assisted embolization should be preferred when the aneurysm is present in the posterior circulation.


Sujet(s)
Anévrysme intracrânien , Humains , Anévrysme intracrânien/chirurgie , Études rétrospectives , Prothèse vasculaire , Endoprothèses , Hémorragies intracrâniennes , Résultat thérapeutique
10.
Clin Transl Oncol ; 25(10): 2871-2883, 2023 Oct.
Article de Anglais | MEDLINE | ID: mdl-37084153

RÉSUMÉ

PURPOSE: Doramectin (DRM) is a kind of avermectin drugs, and it has been shown that DRM has anti-cancer effects. However, the molecular mechanism of DRM in programmed cell death (PCD) aspects is still unclear. The objective of this study was to confirm whether DRM induced PCD in glioma cells. METHODS: In this experiment, the MTT assay and Ki-67 assay were used to detect in vitro cell viability and in vivo tumor proliferation. Then, the effect of DRM on PCD was analyzed by transcriptome comparison. Next, Endogenous apoptosis was detected by transmission electron microscopy (TEM), the DNA gel electrophoresis, JC-1 assay, western blotting and qRT-PCR. Meanwhile, necroptosis was detected by TEM, Hoechst 33342, FITC and PI staining assay, western blotting. RESULTS: We found DRM induced apoptosis through Bcl-2/Bax/Caspase-3 pathway. And, DRM induced ROS overproduction, then ROS caused necroptosis through RIPK1/RIPK3/MLKL pathway, Mitochondria acted as a bridge between the two pathways. CONCLUSION: Our research provided new insight with the function of anti-cancer of DRM. These results demonstrated DRM may be used as potential therapeutic agents inducing apoptosis and necroptosis for cancer therapy.


Sujet(s)
Apoptose , Gliome , Humains , Espèces réactives de l'oxygène/métabolisme , Ivermectine/pharmacologie , Gliome/traitement médicamenteux
11.
Clin Transl Oncol ; 25(8): 2499-2513, 2023 Aug.
Article de Anglais | MEDLINE | ID: mdl-36976490

RÉSUMÉ

PURPOSE: The de novo lipogenesis has been a longstanding observation in hepatocellular carcinoma (HCC). However, the prognostic value and carcinogenic roles of the enzyme Acetyl-CoA carboxylase alpha (ACACA) in HCC remains unknown. METHODS: The proteins with remarkable prognostic significance were screened out from The Cancer Proteome Atlas Portal (TCPA) database. Furthermore, the expression characteristics and prognostic value of ACACA were evaluated in multiple databases and the local HCC cohort. The loss-of-function assays were performed to uncover the potential roles of ACACA in steering malignant behaviors of HCC cells. The underlying mechanisms were conjectured by bioinformatics and validated in HCC cell lines. RESULTS: ACACA was identified as a crucial factor of HCC prognosis. Bioinformatics analyses showed that HCC patients with higher expression of ACACA protein or mRNA levels had poor prognosis. Knockdown of ACACA remarkably crippled the proliferation, colony formation, migration, invasion, epithelial-mesenchymal transition (EMT) process of HCC cells and induced the cell cycle arrest. Mechanistically, ACACA might facilitate the malignant phenotypes of HCC through aberrant activation of Wnt/ß-catenin signaling pathway. In addition, ACACA expression was associated with the dilute infiltration of immune cells including plasmacytoid DC (pDC) and cytotoxic cells by utilization of relevant database analysis. CONCLUSION: ACACA could be a potential biomarker and molecular target for HCC.


Sujet(s)
Carcinome hépatocellulaire , Tumeurs du foie , Humains , Acetyl-coA carboxylase/génétique , Acetyl-coA carboxylase/métabolisme , bêta-Caténine/métabolisme , Carcinome hépatocellulaire/anatomopathologie , Lignée cellulaire tumorale , Mouvement cellulaire , Prolifération cellulaire , Transition épithélio-mésenchymateuse/génétique , Régulation de l'expression des gènes tumoraux , Tumeurs du foie/anatomopathologie , Pronostic , Protéines/métabolisme
12.
Clinics ; Clinics;78: 100202, 2023. tab, graf
Article de Anglais | LILACS-Express | LILACS | ID: biblio-1439915

RÉSUMÉ

Abstract Purposes: Braided and laser-cut stents both are efficacious and safe for coiling intracranial aneurysms. The study aimed to compare outcomes following braided stent-assisted coil embolization versus laser engraved stent-assisted coil embolization in 266 patients who were diagnosed with unruptured intracranial aneurysms of different types and locations. Methods: Patients with unruptured complex intracranial aneurysms underwent braided (BSE cohort, n = 125) or laser engraved (LSE cohort, n = 141) stent-assisted embolization. Results: The deployment success rate was higher for patients of the LSE cohort than those of the BSE cohort (140 [99%] vs. 117 [94%], p = 0.0142). Seventy-one (fifty-seven percentages) and 73 (52%) were coil embolization procedure success rates of the BSE and the LSE cohorts. Periprocedural intracranial hemorrhage was higher in patients of the BSE cohort than those of the LSE cohort (8 [6%] vs. 1 [1%], p = 0.0142). Four (three percentages) patients from the LSE cohort and 3 (2%) patients from the BSE cohort had in-stent thrombosis during embolization. Permanent morbidities were higher in patients of the LSE cohort than those of the BSE cohort (8 [6%] vs. 1 [1%], p = 0.0389). Higher successful procedures (76% vs. 68%) and fewer postprocedural intracranial hemorrhage (0% vs. 5%) and mortality (0% vs. 5%) were reported for patients of the BSE cohort in posterior circulation aneurysmal location than those of the LSE cohort. Laser engraved stent has fewer problems with deployment and may have better periprocedural and follow-up outcomes after embolization. Conclusions: Braided stent-assisted embolization should be preferred when the aneurysm is present in the posterior circulation.

13.
Adv Rheumatol ; 63: 22, 2023. graf
Article de Anglais | LILACS-Express | LILACS | ID: biblio-1447144

RÉSUMÉ

Abstract Background and objective Systemic sclerosis (SSc) is an immune-mediated rheumatic disease characterized by fibrosis and vascular lesions. Interstitial lung disease is an early complication of SSc and the main cause of death from SSc. Although baricitinib shows good efficacy in a variety of connective tissue diseases, its role in systemic sclerosis-related interstitial lung disease (SSc-ILD) is unclear. The objective of our study was to explore the effect and mechanism of baricitinib in SSc-ILD. Methods We explored crosstalk between the JAK2 and TGF-β1 pathways. In vivo experiments, SSc-ILD mice model were constructed by subcutaneous injection of PBS or bleomycin (7.5 mg/kg) and intragastric administration of 0.5% CMC-Na or baricitinib (5 mg/kg) once every two days. We used ELISA, qRT-PCR, western blot and immunofluorescence staining to evaluate the degree of fibrosis. In vitro experiments, we used TGF-β1 and baricitinib to stimulate human fetal lung fibroblasts (HFLs) and assessed protein expression by western blot. Results The vivo experiments showed that baricitinib notably alleviated skin and lung fibrosis, decreased the concentration of pro-inflammatory factors and increased those of the anti-inflammatory factors. Baricitinib affected the expression of TGF-β1 and TβRI/II inhibitiing JAK2. In the vitro experiments, following the culture of HFLs with baricitinib or a STAT3 inhibitor for 48 h, the expression levels of TβRI/II decreased. Conversely, with successful inhibition of TGF-β receptors in HFLs, JAK2 protein expression decreased. Conclusions Baricitinib attenuated bleomycin-induced skin and lung fibrosis in SSc-ILD mice model by targeting JAK2 and regulating of the crosstalk between the JAK2 and TGF-β1 signaling pathways.

14.
Adv Rheumatol ; 63: 45, 2023. tab, graf
Article de Anglais | LILACS-Express | LILACS | ID: biblio-1513561

RÉSUMÉ

Abstract Objective The study explored improvements in pulmonary inflammation and fibrosis in a bovine type II collagen-induced rheumatoid arthritis-associated interstitial lung disease mouse model after treatment with baricitinib and the possible mechanism of action. Methods A rheumatoid arthritis-associated interstitial lung disease mouse model was established, siRNA Jak2 and lentiviral vectors were transfected with human embryonic lung fibroblast cells. And the levels of relevant proteins in mouse lung tissue and human embryonic lung fibroblasts were detected by Western blotting. Results The levels of JAK2, p-JAK2, p-STAT3, p-SMAD3, SMA, TGFβR2, FN and COL4 were increased in the lung tissues of model mice (P < 0.5) and decreased after baricitinib intervention (P < 0.05). The expression levels of p-STAT3, p-SMAD3, SMA, TGFβR2, FN and COL4 were reduced after siRNA downregulation of the JAK2 gene (P < 0.01) and increased after lentiviral overexpression of the JAK2 gene (P < 0.01). Conclusion Baricitinib alleviated fibrosis in the lung tissue of rheumatoid arthritis-associated interstitial lung disease mice, and the mechanism of action may involve the downregulation of Smad3 expression via inhibition of the Jak2/Stat3 signaling pathway, with consequent inhibition of the profibrotic effect of transforming growth factor-β1.

15.
Radiol Artif Intell ; 4(6): e210292, 2022 Nov.
Article de Anglais | MEDLINE | ID: mdl-36523644

RÉSUMÉ

Accurate differentiation of intramedullary spinal cord tumors and inflammatory demyelinating lesions and their subtypes are warranted because of their overlapping characteristics at MRI but with different treatments and prognosis. The authors aimed to develop a pipeline for spinal cord lesion segmentation and classification using two-dimensional MultiResUNet and DenseNet121 networks based on T2-weighted images. A retrospective cohort of 490 patients (118 patients with astrocytoma, 130 with ependymoma, 101 with multiple sclerosis [MS], and 141 with neuromyelitis optica spectrum disorders [NMOSD]) was used for model development, and a prospective cohort of 157 patients (34 patients with astrocytoma, 45 with ependymoma, 33 with MS, and 45 with NMOSD) was used for model testing. In the test cohort, the model achieved Dice scores of 0.77, 0.80, 0.50, and 0.58 for segmentation of astrocytoma, ependymoma, MS, and NMOSD, respectively, against manual labeling. Accuracies of 96% (area under the receiver operating characteristic curve [AUC], 0.99), 82% (AUC, 0.90), and 79% (AUC, 0.85) were achieved for the classifications of tumor versus demyelinating lesion, astrocytoma versus ependymoma, and MS versus NMOSD, respectively. In a subset of radiologically difficult cases, the classifier showed an accuracy of 79%-95% (AUC, 0.78-0.97). The established deep learning pipeline for segmentation and classification of spinal cord lesions can support an accurate radiologic diagnosis. Supplemental material is available for this article. © RSNA, 2022 Keywords: Spinal Cord MRI, Astrocytoma, Ependymoma, Multiple Sclerosis, Neuromyelitis Optica Spectrum Disorder, Deep Learning.

16.
Rev. bras. med. esporte ; Rev. bras. med. esporte;28(6): 834-836, Nov.-Dec. 2022. tab, graf
Article de Anglais | LILACS-Express | LILACS | ID: biblio-1376725

RÉSUMÉ

ABSTRACT Introduction Kung fu exercise has a significant effect in treating lumbar disc herniation, effectively meeting the internal and external circulation of the human body functional system, the lumbar intervertebral disc movement function can be effectively repaired. Objective analyze and explore the effect of kung fu rehabilitation on symptoms of lumbar intervertebral disc herniation. Methods 85 patients with lumbar disc herniation were randomly divided into a control and a kung fu group. Results The comparison between the martial arts group before and after the experiment showed a very significant difference (p<0.05); there was no significant difference in the control group. The total effective rate in the kung fu group was 97.67%, and the relapse rate was 2.33%. The total effective rate of the control group was 90.48%, and the relapse rate was 21.43%. Conclusions Kung fu exercise is beneficial for the relaxation of waist muscles, relieves muscle tone, increases muscle strength, may improve clinical symptoms and signs of lumbar disc herniation. Evidence level II; Therapeutic Studies - Investigating the results.


RESUMO Introdução O exercício de kung fu tem um efeito significativo no tratamento da hérnia discal lombar, atendendo efetivamente à circulação interna e externa do sistema funcional corporal humano, a função de movimento do disco intervertebral lombar pode ser efetivamente reparada. Objetivo Analisar e explorar o efeito de reabilitação com kung fu nos sintomas da hérnia de disco intervertebral lombar. Métodos 85 pacientes com hérnia de disco lombar foram divididos aleatoriamente em um grupo de controle e um grupo de kung fu. Resultados A comparação entre o grupo de artes marciais antes e depois do experimento mostrou uma diferença muito significativa (p<0,05); não houve diferença significativa no grupo controle. A taxa efetiva total no grupo de kung fu foi de 97,67%, e a taxa de recidiva foi de 2,33%. A taxa efetiva total do grupo de controle foi de 90,48%, e a taxa de recidiva foi de 21,43%. Conclusões O exercício de kung fu é benéfico para o relaxamento dos músculos da cintura, alivia o tônus muscular, aumenta a força muscular; pode melhorar os sintomas clínicos e os sinais de hérnia de disco lombar. Nível de evidência II; Estudos terapêuticos - Investigação de resultados.


RESUMEN Introducción el ejercicio de kung fu tiene un efecto significativo en el tratamiento de la hernia discal lumbar, atendiendo eficazmente a la circulación interna y externa del sistema funcional del cuerpo humano, la función de movimiento del disco intervertebral lumbar puede repararse eficazmente. Objetivo Analizar y explorar el efecto de la rehabilitación con kung fu en los síntomas de la hernia discal intervertebral lumbar. Métodos 85 pacientes con hernia discal lumbar fueron divididos aleatoriamente en un grupo de control y un grupo de kung fu. Resultados La comparación entre el grupo de artes marciales antes y después del experimento mostró una diferencia altamente significativa (p<0,05); no hubo diferencia significativa en el grupo de control. La tasa de efectividad total en el grupo de kung fu fue del 97,67%, y la tasa de recaída fue del 2,33%. La tasa efectiva total del grupo de control fue del 90,48%, y la tasa de recidiva del 21,43%. Conclusiones El ejercicio de kung fu es beneficioso para la relajación de los músculos de la cintura, alivia el tono muscular, aumenta la fuerza muscular; puede mejorar los síntomas y signos clínicos de la hernia discal lumbar. Nivel de evidencia II; Estudios terapéuticos - Investigación de resultados.

17.
J Pediatr ; 240: 72-78, 2022 01.
Article de Anglais | MEDLINE | ID: mdl-34508748

RÉSUMÉ

OBJECTIVE: To determine the effects of maternal periconceptional supplementation with folic acid or multiple micronutrients containing folic acid on the prevention of fetal congenital heart defects (CHDs). STUDY DESIGN: Data were drawn from a Prenatal Health Care System and a Birth Defects Surveillance System in a district of Beijing, China. A total of 63 969 singleton births, live or stillborn, 308 CHDs among them, during 2013 to 2018 were included. Associations between different patterns of supplementation and risk for total CHDs or main types of CHDs were evaluated with risk ratios (RRs). RESULTS: For folic acid or multiple micronutrients containing folic acid users compared with nonusers, the adjusted RRs (ARRs) for total CHDs, critical CHD, and ventricular septal defect (VSD) were 0.60 (95% CI, 0.44-0.83), 0.41 (95% CI, 0.26-0.67), and 0.47 (95% CI, 0.30-0.74), respectively. When we compared multiple micronutrients containing folic acid users with folic acid users, the ARRs were 0.84 (95% CI, 0.66-1.09), 0.64 (95% CI, 0.41-1.00), and 0.94 (95% CI, 0.63-1.41) for total CHDs, critical CHD, and VSD, respectively. We also found that, compared with supplementation initiated after conception, supplementation initiated before conception was associated with a lower risk for CHDs: the ARRs were 0.68 (95% CI, 0.48-0.95) for total CHDs and 0.26 (95% CI, 0.10-0.71) for critical CHD, but 1.08 (95% CI, 0.63-1.83) for VSD. CONCLUSIONS: Maternal periconceptional supplementation with folic acid or multiple micronutrients containing folic acid seems to decrease the risk for CHDs, especially critical CHD, in offspring. Supplementation confers a greater protective effect when it is initiated before conception. We did not find any difference between folic acid and multiple micronutrients containing folic acid in terms of preventing CHDs.


Sujet(s)
Cannabis , Cardiopathies congénitales , Compléments alimentaires , Femelle , Acide folique , Cardiopathies congénitales/épidémiologie , Cardiopathies congénitales/étiologie , Cardiopathies congénitales/prévention et contrôle , Humains , Nourrisson , Grossesse , Appréciation des risques
18.
Braz. J. Pharm. Sci. (Online) ; 58: e19902, 2022. tab, graf
Article de Anglais | LILACS | ID: biblio-1383970

RÉSUMÉ

Abstract Xuezhikang (XZK) is an extract of Chinese red yeast rice. It has multiple protective effects in cardiovascular systems. However, the underlying mechanism by which XZK affects free fatty acid (FFA)-induced lipogenesis in hepatocellular steatosis model is still unknown. Herein, we investigated this mechanism in HepG2 cells. The HepG2 cells were treated with palmitate acid (PA) to induce lipogenesis. Then the PA-induced HepG2 cells were subsequently treated with XZK. After 24 h of treatment, we determined the intracellular triglyceride (TG) contents and average areas of lipid droplets. To study the involvement of AMPK signaling pathway, we pre-treated the PA-induced HepG2 cells with Compound C, an AMPK inhibitor, before XZK treatment. Expressions of p-AMPK and AMPK were determined by Western blot. The results showed that XZK decreased TG content and lipid accumulation in hepatocellular steatosis model. Compound C abolished the effects of XZK. These results demonstrated for the first time that XZK protects hepatocytes against lipid accumulation induced by free fatty acids. Its effects may be mediated by the activation of AMPK pathway.


Sujet(s)
Oryza/anatomie et histologie , AMP-activated protein kinase kinases/métabolisme , Lipides/effets indésirables , Asiatiques/classification , Cellules HepG2
19.
Blood Adv ; 5(23): 5387-5395, 2021 12 14.
Article de Anglais | MEDLINE | ID: mdl-34597381

RÉSUMÉ

In the absence of head-to-head trials, an indirect-treatment comparison can estimate the treatment effect of tisagenlecleucel in comparison with blinatumomab on rates of complete remission (CR) and overall survival (OS) in patients with relapsed or primary refractory (R/R) acute lymphoblastic leukemia (ALL). Patient-level data from two pivotal trials, ELIANA (tisagenlecleucel; n = 79) and MT103-205 (blinatumomab; n = 70), were used in comparisons of CR and OS, controlling for cross-trial difference in available patient characteristics. Five different adjustment approaches were implemented: stabilized inverse probability of treatment weight (sIPTW); trimmed sIPTW; stratification by propensity score quintiles; adjustment for prognostic factors; and adjustment for both prognostic factors and propensity score. Comparative analyses indicate that treatment with tisagenlecleucel was associated with a statistically significant higher likelihood of achieving CR and lower hazard of death than treatment with blinatumomab. The tisagenlecleucel group exhibited a higher likelihood of CR than the blinatumomab group in every analysis regardless of adjustment approach (odds ratios: 6.71-9.76). Tisagenlecleucel was also associated with a lower hazard of death than blinatumomab in every analysis, ranging from 68% to 74% lower hazard of death than with blinatumomab, determined using multiple adjustment approaches (hazard ratios: 0.26-0.32). These findings support the growing body of clinical trials and real-world evidence demonstrating that tisagenlecleucel is an important treatment option for children and young adults with R/R ALL.


Sujet(s)
Anticorps bispécifiques , Antinéoplasiques , Leucémie-lymphome lymphoblastique à précurseurs B et T , Anticorps bispécifiques/usage thérapeutique , Antinéoplasiques/usage thérapeutique , Enfant , Humains , Leucémie-lymphome lymphoblastique à précurseurs B et T/traitement médicamenteux , Récepteurs aux antigènes des cellules T , Jeune adulte
20.
Clin Transl Oncol ; 23(12): 2415-2430, 2021 Dec.
Article de Anglais | MEDLINE | ID: mdl-34125407

RÉSUMÉ

Cancer immunotherapy has revolutionized the treatment of many malignant tumors. Although immune checkpoint inhibitors (ICIs) can reactivate the anti-tumor activity of immune cells, sensitivity to immune checkpoint inhibitor therapy depends on the complex tumor immune processes. In recent years, numerous researches have demonstrated the role of intestinal microbiota in immunity and metabolism of the tumor microenvironment, as well as the efficacy of immunotherapy. Epidemiological studies have further demonstrated the efficacy of antibiotic therapy on the probability of patients' response to ICIs and predictability of the short-term survival of cancer patients. Disturbance to the intestinal microbiota significantly affects ICIs-mediated immune reconstitution and is considered a possible mechanism underlying the development of adverse effects during antibiotic-based ICIs treatment. Intestinal microbiota, antibiotics, and ICIs have gradually become important considerations for the titer of immunotherapy. In the case of immunotherapy, the rational use of antibiotics and intestinal microbiota is expected to yield a better prognosis for patients with malignant tumors.


Sujet(s)
Antibactériens/administration et posologie , Bactéries/immunologie , Microbiome gastro-intestinal , Inhibiteurs de points de contrôle immunitaires/usage thérapeutique , Immunothérapie/méthodes , Tumeurs/traitement médicamenteux , Microenvironnement tumoral , Humains , Tumeurs/immunologie , Tumeurs/microbiologie , Pronostic
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