Pesquisa | SciELO

Resumo A proteína 2 de ligação de nucleotídeos de guanina (GNB2) codifica a subunidade β2 (Gβ2) do complexo da proteína G. Tendo em vista o aumento da demanda de biomarcadores em câncer, o presente estudo foi planejado para explorar extensivamente a variação da expressão de GNB2 e seus papéis em diferentes cânceres usando bancos de dados on-line disponíveis e metodologia diversificada. Em vista de nossos resultados, o GNB2 foi notavelmente regulado para cima em relação aos controles correspondentes em 23 tipos de câncer. Além disso, a expressão elevada de GNB2 foi associada à redução da sobrevida global (OS) do carcinoma hepatocelular do fígado (LIHC) e do adenocarcinoma do reto (READ) apenas em todos os tipos de câncer analisados. Isso implica que GNB2 desempenha um papel vital na tumorigênese de LIHC e READ. Várias análises adicionais também exploraram seis vias críticas e poucas correlações relacionadas à expressão de GNB2 e diferentes outros parâmetros, como metilação do promotor, pureza do tumor, infiltração de células T CD8+, alteração genética e drogas quimioterápicas. Em conclusão, o gene GNB2 foi identificado neste estudo como um potencial biomarcador compartilhado (diagnóstico e prognóstico) de LIHC e READ.

Abstract The Guanine-nucleotide binding protein 2 (GNB2) encodes for β2 subunit (Gβ2) of the G-protein complex. Keeping in view the increased demand of reliable biomarkers in cancer, the current study was planned to extensively explored GNB2 expression variation and its roles in different cancers using online available databases and diverse methodology. In view of our results, the GNB2 was notably up-regulated relative to corresponding controls in twenty three cancer types. As well, the elevated expression of GNB2 was found to be associated with the reduced overall survival (OS) of the Liver Hepatocellular Carcinoma (LIHC) and Rectum Adenocarcinoma (READ) only out of all analyzed cancer types. This implies GNB2 plays vital role in the tumorigenesis of LIHC and READ. Several additional analysis also explored six critical pathways and few important correlations related to GNB2 expression and different other parameters such as promoter methylation, tumor purity, CD8+ T immune cells infiltration, and genetic alteration, and chemotherapeutic drugs. In conclusion, GNB2 gene has been identified in this study as a shared potential biomarker (diagnostic and prognostic) of LIHC and READ.

https://doi.org/10.1590/1519-6984.260169

Effects of somatostatin in combination with early hemoperfusion on inflammatory, hemorheological and oxidative parameters during the treatment of acute pancreatitis.
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Zhai, Hengyong

; Yang, Bin

; Fu, Yiwei

; Zhang, Dongli

; Li, Yujiang

; Huang, Junxing

Investigación Clínica

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Mar 2023, Volume 64 Nº 1 Páginas 41 - 52

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract We aimed to evaluate the effects of somatostatin combined with early hemoperfusion on inflammatory and stress responses during acute pancreatitis (AP) treatment. A total of 159 AP patients treated from September 2016 to January 2020 were randomly divided into three groups A-C (n=53). In addition to routine treatment, groups A-C were additionally given somatostatin, early hemoperfusion, and somatostatin combined with early hemoperfusion, respectively. Their inflammatory factors, stress response, intestinal mucosal barrier, hemorheological indices, recovery time, length of stay, clinical efficacy, and adverse reactions were compared. The levels of serum interleukin-10 (IL - 10), catalase and glutathione peroxidase rose in the three groups after ten days of treatment, compared with values before treatment, being the highest rise in group C. The levels of IL -18, tumor necrosis factor-α, soluble intercellular adhesion molecule-1, procalcitonin, high mobility group protein B1, lipid hydrogen peroxide, advanced oxidation protein products, epinephrine, cortisol, D-lactic acid, diamine oxidase, and endotoxin decreased after ten days of treatment compared with those before treatment, which were lowest in group C (P<0.05). After ten days of treatment, the levels of hemorheological indices were significantly lower than those before treatment (P<0.05). Compared with groups A and B, group C had a shorter recovery time of urine amylase, bowel sound and passing gas, remission time of abdominal pain, length of stay, and a higher total response rate (P<0.05). During AP treatment, somatostatin combined with early hemoperfusion effectively relieved inflammatory and stress responses, protected the intestinal mucosal barrier function and improved the hemorheology, thereby promoting the recovery and benefiting the prognosis of patients.

Resumen Nuestro objetivo fue evaluar los efectos de la somatostatina combinada con hemoperfusión temprana sobre las respuestas inflamatorias y de estrés durante el tratamiento de la pancreatitis aguda (PA). Un total de 159 pacientes con PA tratados entre septiembre de 2016 y enero de 2020 se dividieron aleatoriamente en tres grupos A-C (n=53). Con base en el tratamiento de rutina, los grupos A-C recibieron además somatostatina, hemoperfusión temprana y somatostatina combinada con hemoperfusión temprana, respectivamente. Se compararon sus factores inflamatorios, respuesta al estrés, barrera de la mucosa intestinal, índices hemorreológicos, tiempo de recuperación, tiempo de estancia, eficacia clínica y reacciones adversas. Los niveles séricos de interleucina-10 (IL -10), catalasa y glutatión peroxidasa aumentaron en los tres grupos después de 10 días de tratamiento, comparados con los valores antes del tratamiento, siendo más elevados en el grupo C. Los niveles de IL - 18, factor de necrosis tumoral α, molécula de adhesión intercelular 1 soluble, procalcitonina, proteína B1 del grupo de alta movilidad, peróxido de hidrógeno lipídico, los productos proteicos de oxidación avanzada, epinefrina, cortisol, ácido D-láctico, diaminooxidasa y endotoxina disminuyeron después de 10 días de tratamiento en comparación con los previos al tratamiento, que fueron más bajos en el grupo C (P<0,05). Después de 10 días de tratamiento, los índices hemorreológicos fueron significativamente menores que los previos al tratamiento (P<0,05). En comparación con los grupos A y B, el grupo C tuvo un tiempo de recuperación más corto de amilasa en orina, sonido y escape intestinal, tiempo de remisión del dolor abdominal y tiempo de estancia, y una tasa de respuesta total más alta (P<0,05). Durante el tratamiento de la AP, la somatostatina combinada con hemoperfusión precoz alivia eficazmente las respuestas inflamatorias y de estrés, protege la función de la barrera de la mucosa intestinal y mejora la hemorología, favoreciendo la recuperación y beneficiando el pronóstico de los pacientes.

https://doi.org/10.54817/ic.v64n1a04

Effects of dietary supplementation with yeast chromium or dihydropyridine on milk composition and serum biochemical indices of periparturient dairy cows under heat stress
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Zhang, L.W.

; Zhang, Y.F.

; Wang, C.

; Wang, S.Q.

; Zhang, S.B.

; Li, J.D.

; Gao, S.

; Qi, Z.L.

; Chen, H.J.

South African Journal of Animal Science

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2023, Volume 53 Nº 5 Páginas 637 - 648

Resumo: En | Texto: En | PDF: En

The objective of the current study was to evaluate the effects of dietary supplementation with chromium yeast (Cr-yeast) and dihydropyridine (DHP) on nutrient utilization, milk composition, and antioxidative status of prepartum dairy cows under heat stress. Twenty-four perinatal dairy cows (600 ± 14 kg; parity 2-3) were divided into three groups and fed the same basal diet with no supplement (control group), 8 g of Cr-yeast (Cr-yeast group), or 3 g of DHP (DHP group) per day. The experimental period consisted of a 7-d adaptation period and a 30-d data collection period from day 27 prepartum to day 3 postpartum. The temperature humidity index (THI) observed at daytime during the trial period exceeded 72, and the mean daily THI was 79.43. Norepinephrine in the Cr-yeast group decreased in prepartum cows. Serum cortisol in Cr-yeast or DHP group cows was lower in the postpartum period than in the control; however, serum cortisol levels decreased in the DHP group in the prepartum period. Dietary supplementation with Cr-yeast increased the digestibility of ether extract and the concentration of milk fat, while the solid non-fat (SNF) level was reduced. In the DHP group, the lactoprotein content was higher than the control. Total antioxidant capacity (T-AOC) was higher and the malondialdehyde (MDA) content tended to increase before calving in the Cr-yeast and DHP groups. Dietary supplementation with Cr-yeast or DHP can relieve the adverse impact caused by heat stress in prepartum dairy cows.

https://doi.org/10.4314/sajas.v53i5.03

Bioinformatics-based design of a fusion vaccine with CTLA-4 variable region to combat Brucella
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Guo, W.H.

; Zhu, Y.J.

; Haimiti, G.

; Xie, X.R.

; Niu, C.

; Li, M.

; Shi, J.

; Yin, Z.W.

; Yu, M.K.

; Ding, J.B.

; Zhang, F.B.

Brazilian Journal of Medical and Biological Research

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2023, Volume 56 elocation e12938

Resumo: En | Texto: En | PDF: En

Brucellosis has become a global zoonotic disease, seriously endangering the health of people all over the world. Vaccination is an effective strategy for protection against Brucella infection in livestock in developed countries. However, current vaccines are pathogenic to humans and pregnant animals, which limits their use. Therefore, it is very important to improve the safety and immune protection of Brucella vaccine. In this study, different bioinformatics approaches were carried out to predict the physicochemical properties, T/B epitope, and tertiary structure of Omp2b and Omp31. Then, these two proteins were sequentially linked, and the Cytotoxic T lymphocyte associated antigen-4 (CTLA-4) variable region was fused to the N-terminal of the epitope sequence. In addition, molecular docking was performed to show that the structure of the fusion protein vaccine had strong affinity with B7 (B7-1, B7-2). This study showed that the designed vaccine containing CTLA-4 had high potency against Brucella, which could provide a reference for the future development of efficient brucellosis vaccines.

https://doi.org/10.1590/1414-431x2023e12938

Cross-genera amplification and identification of Colpodella sp. with Cryptosporidium primers in fecal samples of zoo felids from northeast China
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Hussain, S.

; Li, X.

; Bukhari, S. M.

; Zhou, M.

; Ahmad, S.

; Javid, A.

; Guan, C.

; Hussain, A.

; Ali, W.

; Khalid, N.

; Ahmad, U.

; Tian, L.

; Hou, Z.

Brazilian Journal of Biology

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2023, Volume 83 elocation e247181

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Os protozoários incluem muitos patógenos humanos intracelulares. A detecção acurada desses patógenos é necessária para tratar as doenças. Na epidemiologia clínica, a identificação molecular de protozoários é considerada o método de identificação mais confiável e rápido do que a microscopia. Entre esses protozoários, o Cryptosporidium é considerado um dos importantes patógenos zoonóticos transmitidos pela água e uma das principais causas de uma doença diarreica denominada criptosporidiose em humanos, animais domésticos e selvagens. Este estudo teve como objetivo identificar Cryptosporidium em zoofelídeos (N = 56) pertencentes a diferentes zoológicos da China, mas acidentalmente Colpodella foi encontrada na amostra de zoofelídeos e os dados filogenéticos confirmaram essa amplificação inesperada de amostras fecais usando nested-PCR em duas etapas. A análise filogenética revelou o fato sobre os primers específicos usados anteriormente por muitos pesquisadores e a amplificação entre gêneros. Ficamos sabendo que o amplicon sequenciado geneticamente fornece uma identificação mais acurada das espécies. Este estudo sugere mais investigação sobre Colpodella, que foi negligenciada anteriormente, mas ganha a atenção dos pesquisadores depois de identificada em humanos e animais e é conhecida por se correlacionar com sintomas neurológicos em pacientes.

Abstract The protozoans include many intracellular human pathogens. Accurate detection of these pathogens is necessary to treat the diseases. In clinical epidemiology, molecular identification of protozoan is considered a more reliable and rapid method for identification than microscopy. Among these protozoans, Cryptosporidium considered being one of the important water-borne zoonotic pathogens and a major cause of a diarrheal disease named cryptosporidiosis in humans, domestic animals, and wild animals. This study was aimed to identify Cryptosporidium in zoo felids (N= 56) belonging to different zoo of China, but accidentlly Colpodella was encountered in the zoo felids sample and phylogenetic data confirmed this unexpected amplification from fecal samples using two-step nested-PCR. Phylogenetic analysis revealed the fact about the specific primers used previously by many researchers and cross-genera amplification. We came to know that genetically sequenced amplicon gives more accurate identification of species. This study suggests more investigation on Colpodella which has been neglected previously but gains the attention of researchers after identified from humans and animals and has been known to correlate with neurological symptoms in patients.

https://doi.org/10.1590/1519-6984.247181 92 downloads

Comparison of different local analgesia protocols in postoperative pain management after total knee arthroplasty
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Wang, Yang

; Li, Guoqing

; Momin, Muhtar

; Ji, Baochao

; Cao, Li

; Aisikeerbayi, Aishajiang

Brazilian Journal of Anesthesiology

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Abr 2022, Volume 72 Nº 2 Páginas 267 - 273

Resumo: En | Texto: En | PDF: En

Abstract Objectives This study was to compare the effects of different local analgesia protocols on osteoarthritis patients undergoing total knee arthroplasty (TKA). Methods Medical records of 148 osteoarthritis patients who underwent unilateral TKA between October 2016 and October 2017 in our hospital were retrospectively analyzed. All these patients were divided into three groups according to the pain management protocol (morphine, morphine + cocktail [100 mg ropivacaine, 10 mg morphine, and 30 mL 0.9% sodium chloride solution containing 2 mL betamethasone (4 mg)], or cocktail). The postoperative visual analog scale (VAS) score, muscle strength, and complications were compared between the groups. Results At 6 and 12 hours post-operation, the VAS score in group C was significantly higher than that in group A or group B. In addition, the muscle (quadriceps femoris) strength score of group C (3.7 ± 2.8) was significantly higher than that in groups A and B at 6 and 12 hours post-operation. The VAS score and muscle strength score showed no significant differences among the three groups at 24 and 36 hours post-operation. The time of postoperative first void of group C was significantly shorter than that of groups A and B. Groups A or B had a significantly higher incidence of nausea and emesis compared with group C. The incidence of pruritus was higher in groups A or B than that in group C. Conclusion Epidural anesthesia combined with local analgesic cocktail injection is a preferable effective multimodal analgesia for TKA.

https://doi.org/10.1016/j.bjane.2020.12.020

A declaração PRISMA 2020: diretriz atualizada para relatar revisões sistemáticas
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Page, Matthew J.

; McKenzie, Joanne E.

; Bossuyt, Patrick M.

; Boutron, Isabelle

; Hoffmann, Tammy C.

; Mulrow, Cynthia D.

; Shamseer, Larissa

; Tetzlaff, Jennifer M.

; Akl, Elie A.

; Brennan, Sue E.

; Chou, Roger

; Glanville, Julie

; Grimshaw, Jeremy M.

; Hróbjartsson, Asbjørn

; Lalu, Manoj M.

; Li, Tianjing

; Loder, Elizabeth W.

; Mayo-Wilson, Evan

; McDonald, Steve

; McGuinness, Luke A.

; Stewart, Lesley A.

; Thomas, James

; Tricco, Andrea C.

; Welch, Vivian A.

; Whiting, Penny

; Moher, David

Revista Panamericana de Salud Pública

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2022, Volume 46 elocation e112

Resumo: En Pt Es | Texto: En Pt Es | PDF: En | PDF: Pt | PDF: Es

ABSTRACT The Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) statement, published in 2009, was designed to help systematic reviewers transparently report why the review was done, what the authors did, and what they found. Over the past decade, advances in systematic review methodology and terminology have necessitated an update to the guideline. The PRISMA 2020 statement replaces the 2009 statement and includes new reporting guidance that reflects advances in methods to identify, select, appraise, and synthesise studies. The structure and presentation of the items have been modified to facilitate implementation. In this article, we present the PRISMA 2020 27-item checklist, an expanded checklist that details reporting recommendations for each item, the PRISMA 2020 abstract checklist, and the revised flow diagrams for original and updated reviews.

RESUMO A declaração dos Principais Itens para Relatar Revisões Sistemáticas e Meta-análises (PRISMA), publicada em 2009, foi desenvolvida para ajudar revisores sistemáticos a relatar de forma transparente por que a revisão foi feita, os métodos empregados e o que os autores encontraram. Na última década, os avanços na metodologia e terminologia de revisões sistemáticas exigiram a atualização da diretriz. A declaração PRISMA 2020 substitui a declaração de 2009 e inclui novas orientações para relato que refletem os avanços nos métodos para identificar, selecionar, avaliar e sintetizar estudos. A estrutura e apresentação dos itens foram modificadas para facilitar a implementação. Neste artigo, apresentamos a lista de checagem PRISMA 2020 de 27 itens, uma lista de checagem expandida que detalha as recomendações para relato para cada item, a lista de checagem PRISMA 2020 para resumos e os fluxogramas revisados para novas revisões e para atualização de revisões.

RESUMEN La declaración PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses), publicada en 2009, se diseñó para ayudar a los autores de revisiones sistemáticas a documentar de manera transparente el porqué de la revisión, qué hicieron los autores y qué encontraron. Durante la última década, ha habido muchos avances en la metodología y terminología de las revisiones sistemáticas, lo que ha requerido una actualización de esta guía. La declaración PRISMA 2020 sustituye a la declaración de 2009 e incluye una nueva guía de presentación de las publicaciones que refleja los avances en los métodos para identificar, seleccionar, evaluar y sintetizar estudios. La estructura y la presentación de los ítems ha sido modificada para facilitar su implementación. En este artículo, presentamos la lista de verificación PRISMA 2020 con 27 ítems, y una lista de verificación ampliada que detalla las recomendaciones en la publicación de cada ítem, la lista de verificación del resumen estructurado PRISMA 2020 y el diagrama de flujo revisado para revisiones sistemáticas.

https://doi.org/10.26633/rpsp.2022.112

Vitamin D alleviates skeletal muscle loss and insulin resistance by inducing vitamin D receptor expression and regulating the AMPK/SIRT1 signaling pathway in mice
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LI, Aijuan

; SHEN, Pengcheng

; LIU, Sijia

; WANG, Jiao

; ZENG, Jingru

; DU, Chunping

Food Science and Technology

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2022, Volume 42 elocation e47921

Resumo: En | Texto: En | PDF: En

Abstract Vitamin D (VD) was reported to play protective roles in skeletal muscle. This study aimed to explore whether endoplasmic reticulum (ER) stress inhibition is associated with the protective effects of VD/VD receptor (VDR) signaling on skeletal muscle functions. C2C12 skeletal muscle cells were treated with palmitic acid (PA) and then incubated with different concentrations of 1,25-(OH)2-vitamin D3 (VD3), and we found that VD3 improved the impaired cell viability induced by PA and increased VDR expression in a dose-dependent manner. Then 100 nM VD3 treatment and VDR overexpression both ameliorated PA-induced ER stress, apoptosis, inflammation and glucose uptake inhibition in C2C12 myocytes. Furthermore, VDR knockdown reversed the protective effects of VD3 on C2C12 cell functions. Additionally, PA-treated C2C12 cells were treated with VD3 alone or together with AMPK signaling inhibitor Compound C. VD3 promoted phosphorylation of AMPK and SIRT1 expression, while Compound C reversed these effects and abolished the protective effects of VD3 in C2C12 cells. High-fat diet (HFD)-fed mice were treated with VD3, and VD3 alleviated skeletal muscle loss and insulin resistance in mice. In conclusion, VD inhibited AMPK/SIRT1-mediated ER stress by increasing VDR expression, and further ameliorated skeletal muscle loss and insulin resistance in mice.

https://doi.org/10.1590/fst.47921

Clinical research for dose effects of ketorolac tromethamine on PCIA after hip arthroplasty
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SONG, Hailong

; LI, Cong

; QU, Changwei

; ZHANG, Yan

; MIAO, Shaohua

Food Science and Technology

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2022, Volume 42 elocation e70520

Resumo: En | Texto: En | PDF: En

Abstract To observe effect and safety of different doses of ketorolac tromethamine in patient controlled intravenous analgesia (PCIA) after hip arthroplasty. 60 hip arthroplasty patients injected with 0.5 mg/kg ketorolac tromethamine before anesthesia were randomly divided into group A, B and C in which the patients were injected 2, 3 and 4 mg/kg ketorolac tromethamine after operation respectively. Compared with group A, MAP and HR in group B and group C were lower at T1 (3 h after operation) and T2 (6 h after operation). In group A, MAP and HR at T3 (24 h after operation) and T4 (48 h after operation) were lower than at T1. Compared with group A, NRS scores of group B and C were significantly lower during the analgesia. Compared with group A, ramesay sedation scores in group B and group C were significantly higher at T1 and T2; Harris hip scores of group B and group C were significantly higher at T3 and T4; the total number of pushing PCA pump and dezocine dosage were significantly decreased in group B and group C. Preemptive analgesia combined with postoperative analgesia on patients after hip replacement was appropriate.

https://doi.org/10.1590/fst.70520

10.

Mechanisms of Coreopsis tinctoria Nutt in the Treatment of Diabetic Nephropathy Based on Network Pharmacyology Analysis of its Active Ingredients
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Li, Tian

; Liu, Shuaishuai

; Abula, Zulipiya

; kadier, Kedireya

; Guo, Yanli

; Gu, Simeng

; Wang, Lifeng

; Zhang, Fang

; Mao, Xinmin

; Li, Xuejun

International Journal of Morphology

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2022, Volume 40 Nº 5 Páginas 1152 - 1164

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

SUMMARY: Coreopsis tinctoria Nutt. (C. tinctoria Nutt.) can protect diabetic kidneys, but the mechanisms are unclear. This work is to investigate the potential mechanisms of C. tinctoria Nutt. in the treatment of diabetic nephropathy based on network pharmacology analysis of its active ingredients. Twelve small molecular compounds of C. tinctoria Nutt. and targets related to diabetic nephropathy were docked by Discovery Studio 3.0. DAVID database was used for GO enrichment and KEGG pathway analysis. Cytoscape 3.6.1 was used to construct active ingredient-target network. Cell viability was detected with MTT. Glucose consumption was analyzed with glucose oxidase method. Protein expression was measured with Western blot and immunofluorescence. Electron microscopy observed autophagosomes. The core active ingredients of C. tinctoria Nutt. included heriguard, flavanomarein, maritimein, and marein. Twenty-one core targets of the 43 potential targets were PYGM, TLR2, RAF1, PRKAA2, GPR119, INS, CSF2, TNF, IAPP, AKR1B1, GSK3B, SYK, NFKB2, ESR2, CDK2, FGFR1, HTRA1, AMY2A, CAMK4, GCK, and ABL2. These 21 core targets were significantly enriched in 50 signaling pathways. Thirty- four signaling pathways were closely related to diabetic nephropathy, of which the top pathways were PI3K/AKT, insulin, and mTOR, and insulin resistance. The enriched GO terms included biological processes of protein phosphorylation, and the positive regulation of PI3K signaling and cytokine secretion; cellular components of cytosol, extracellular region, and extracellular space; and molecular function of protein kinase activity, ATP binding, and non-membrane spanning protein tyrosine kinase activity. In vitro experiments found that marein increased the expression of phosphorylated AKT/AKT in human renal glomerular endothelial cells of an insulin resistance model induced by high glucose, as well as increased and decreased, respectively, the levels of the microtubule-associated proteins, LC3 and P62. C. tinctoria Nutt. has many active ingredients, with main ingredients of heriguard, flavanomarein, maritimein, and marein, and may exert anti-diabetic nephropathy effect through various signaling pathways and targets.

RESUMEN: Coreopsis tinctoria Nutt. (C. tinctoria Nutt.) puede proteger riñones diabéticos, sin embargo los mecanismos son desconocidos. Este trabajo se realizó para investigar los potenciales mecanismos de C. tinctoria Nutt. en el tratamiento de la nefropatía diabética basado en el análisis de farmacología en red de sus principios activos. Doce compuestos moleculares pequeños de C. tinctoria Nutt. y los objetivos relacionados con la nefropatía diabética fueron acoplados por Discovery Studio 3.0. La base de datos DAVID se utilizó para el enriquecimiento GO y el análisis de la vía KEGG. Se usó Cytoscape 3.6.1 para construir una red de ingrediente-objetivo activa. La viabili- dad celular se detectó mediante MTT. El consumo de glucosa se analizó con el método de glucosa oxidasa. La expresión proteica fue determinada mediante Western blot e inmunofluorescencia. En la microscopía electrónica se observó autofagosomas. Los principales ingredientes activos de C. tinctoria Nutt. incluyeron heriguard, flavanomarein, maritimin y marein. Veintiún de los 43 objetivos potenciales fueron PYGM, TLR2, RAF1, PRKAA2, GPR119, INS, CSF2, TNF, IAPP, AKR1B1, GSK3B, SYK, NFKB2, ESR2, CDK2, FGFR1, HTRA1, AMY2A, CAMK4, GCK y ABL2. Estos 21 objetivos principales se enriquecieron significativamente en 50 vías de señalización. Treinta y cuatro vías de señalización estuvieron estrechamente relacionadas con la nefropatía diabética, de las cuales las principales vías fueron PI3K/ AKT, insulina y mTOR, y resistencia a la insulina. Los términos GO enriquecidos incluyeron procesos biológicos de fosforilación proteica, la regulación positiva de la señalización de PI3K y la secreción de citoquinas; componentes celulares del citosol, región extracelular y espacio extracelular; y la función molecular de la actividad de la proteína quinasa, la unión de ATP y la actividad de la proteína tirosina quinasa que no se extiende por la membrana. Los experimentos in vitro encontraron que la mareína aumentaba la expresión de AKT/AKT fosforilada en células endoteliales glomerulares renales humanas en un modelo de resistencia a la insulina inducida por niveles elevados de glucosa, así como aumentaron y disminuyeron respectivamente, los niveles de las proteínas asociadas a los microtúbulos, LC3 y P62. C. tinctoria Nutt. tiene muchos principios activos, con ingredientes principales de heriguard, flavanomarein, maritimain y marein, y puede ejercer un efecto de nefropatía antidiabética a través de distintass vías de señalización y objetivos.

11.

The protective effects of dietary Clostridium butyricum supplementation on hepatic ischemia reperfusion injury in rats
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Yang, Xuan

; Yu, Hui

; Wei, Jingli

; Wei, Qiuyan

; Huang, Hui

; Chen, Jing

; Li, Jianzhe

; Yu, Shuyi

Acta Cirúrgica Brasileira

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2022, Volume 37 Nº 9 elocation e370904

Resumo: En | Texto: En | PDF: En

ABSTRACT Purpose: This study investigated the effects of oral administration of Clostridium butyricum (C. butyricum) on inflammation, oxidative stress, and gut flora in rats with hepatic ischemia reperfusion injury (HIRI). Methods: The rats from C. butyricum group were given C. butyricum for 5 days. Then, hepatic ischemia for 30 min and reperfusion for 6 h were performed in all the rats. After the animals were sacrificed, alanine transaminase (ALT), aspartate aminotransferase (AST), lipopolysaccharide (LPS) in serum, short-chain fatty acids (SCFAs), and gut microbiota composition in feces, and malondialdehyde (MDA), glutathione (GSH), tumor necrosis factor-α (TNF-α), interleukin 6 (IL-6), Toll-like receptor 4 (TLR4), nuclear factor-kappa Bp65 (NF-κBp65) and histological analysis in the liver were performed. Results: The rats given C. butyricum showed decreased ALT, AST, LPS, and MDA; improved GSH and histological damage; changes in SCFAs; declined TNF-α, IL-6, TLR4, and pNF-κBp65/NF-κBp65; and changes in the gut microbial composition, which decreased the Firmicutes/Bacteroidetes ratio and increased the relative abundance (RA) of probiotics. Conclusions: C. butyricum supplementation protected against HIRI by regulating gut microbial composition, which contributed to the decreased LPS and attenuation of inflammation and oxidative stress. These indicate C. butyricum may be a potent clinical preoperative dietary supplement for HIRI.

https://doi.org/10.1590/acb370904

12.

Saúde Cardiovascular e Fibrilação ou Flutter Atrial: Um Estudo Transversal do ELSA-Brasil
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Santos, Itamar S.

; Lotufo, Paulo A.

; Goulart, Alessandra C.

; Brant, Luisa C. C.

; Pinto Filho, Marcelo M

; Pereira, Alexandre C.

; Barreto, Sandhi M.

; Ribeiro, Antonio L. P.

; Thomas, G Neil

; Lip, Gregory Y. H.

; Bensenor, Isabela M.

; Arasalingam, Ajini

; Beane, Abi

; Bensenor, Isabela M

; Brocklehurst, Peter

; Cheng, Kar Keung

; El-Bouri, Wahbi

; Feng, Mei

; Goulart, Alessandra C

; Greenfield, Sheila

; Guo, Yutao

; Guruparan, Mahesan

; Gusso, Gustavo

; Gooden, Tiffany E

; Haniffa, Rashan

; Humphreys, Lindsey

; Jolly, Kate

; Jowett, Sue

; Kumarendran, Balachandran

; Lancashire, Emma

; Lane, Deirdre A

; Li, Xuewen

; Lip (Co-PI), Gregory Y.H.

; Li, Yan-guang

; Lobban, Trudie

; Lotufo, Paulo A

; Manseki-Holland, Semira

; Moore, David J

; Nirantharakumar, Krishnarajah

; Olmos, Rodrigo D

; Paschoal, Elisabete

; Pirasanth, Paskaran

; Powsiga, Uruthirakumar

; Romagnolli, Carla

; Santos, Itamar S

; Shantsila, Alena

; Sheron, Vethanayagam Antony

; Shribavan, Kanesamoorthy

; Szmigin, Isabelle

; Subaschandren, Kumaran

; Surenthirakumaran, Rajendra

; Tai, Meihui

; Neil Thomas (Co-PI), G

; Varella, Ana C

; Wang, Hao

; Wang, Jingya

; Zhang, Hui

; Zhong, Jiaoyue

Arquivos Brasileiros de Cardiologia

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2022, Nº ahead

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Fundamento A associação entre o status de saúde cardiovascular ideal ( ideal cardiovascular health ( ICVH) e diagnóstico de fibrilação ou flutter atrial (FFA) foi menos estudado em comparação a outras doenças cardiovasculares. Objetivos Analisar a associação entre o diagnóstico de FFA e métricas e escores de ICVH no Estudo Longitudinal de Saúde do Adulto (ELSA-Brasil). Métodos Este estudo analisou dados de 13141 participantes com dados completos. Os traçados eletrocardiográficos foram codificados de acordo com o Sistema de Minnesota, em um centro de leitura centralizado. As métricas do ICVH (dieta, atividade física, índice de massa corporal, tabagismo, glicemia de jeju, e colesterol total) e escores do ICVH foram calculados conforme proposto pela American Heart Association . Modelos de regressão logística bruta e ajustada foram construídos para analisar associações de métricas e escores do ICVH com diagnóstico de FFA. O nível de significância foi estabelecido em 0,05. Resultados A idade mediana da amostra foi de 55 anos, e 54,4% eram mulheres. Nos modelos ajustados, os escores de ICVH não apresentaram associação significativa com diagnóstico de FFA prevalente [odds ratio (OR):0,96; intervalo de confiança de 95% (IC95%):0,80-1,16; p=0,70). Perfis de pressão arterial ideal (OR:0,33; IC95%:0,1-0,74; p=0,007) e colesterol total ideal (OR:1,88; IC95%:1,19-2,98; p=0,007) foram significativamente associados com o diagnóstico de FFA. Conclusões Não foram identificadas associações significativas entre escores de ICVH global e diagnóstico de FFA após ajuste multivariado em nossas análises, devido, ao menos em parte, às associações antagônicas da FFA com métricas de pressão arterial e de colesterol total do ICVH. Nossos resultados sugerem que estimar a prevenção da FFA por meio de escore de ICVH global pode não ser adequado, e as métricas do ICVH devem ser consideradas separadamente.

Abstract Background The association between ideal cardiovascular health (ICVH) status and atrial fibrillation or flutter (AFF) diagnosis has been less studied compared to other cardiovascular diseases. Objective To analyze the association between AFF diagnosis and ICVH metrics and scores in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Methods This study analyzed data from 13,141 participants with complete data. Electrocardiographic tracings were coded according to the Minnesota Coding System, in a centralized reading center. ICVH metrics (diet, physical activity, body mass index, smoking, blood pressure, fasting plasma glucose, and total cholesterol) and scores were calculated as proposed by the American Heart Association. Crude and adjusted binary logistic regression models were built to analyze the association of ICVH metrics and scores with AFF diagnosis. Significance level was set at 0.05. Results The sample had a median age of 55 years and 54.4% were women. In adjusted models, ICVH scores were not significantly associated with prevalent AFF diagnosis (odds ratio [OR]:0.96; 95% confidence interval [95% CI]:0.80-1.16; p=0.70). Ideal blood pressure (OR:0.33; 95% CI:0.15–0.74; p=0.007) and total cholesterol (OR:1.88; 95% CI:1.19–2.98; p=0.007) profiles were significantly associated with AFF diagnosis. Conclusions No significant associations were identified between global ICVH scores and AFF diagnosis after multivariable adjustment in our analyses, at least partially due to the antagonistic associations of AFF with blood pressure and total cholesterol ICVH metrics. Our results suggest that estimating the prevention of AFF burden using global ICVH scores may not be adequate, and ICVH metrics should be considered in separate.

https://doi.org/10.36660/abc.20210970

13.

Ameliorative effects of morel mushroom (Morchella esculenta) against Cadmium-induced reproductive toxicity in adult male rats
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Iqbal, T.

; Jahan, S.

; Ain, Q. Ul

; Ullah, H.

; li, C.

; Chen, L.

; Zhou, X.

Brazilian Journal of Biology

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2022, Volume 82 elocation e250865

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O cádmio (Cd) é um dos principais tóxicos, que afeta a saúde humana por meio da exposição ocupacional e ambiental. No presente estudo, avaliamos os efeitos protetores dos cogumelos morel contra os danos reprodutivos induzidos pelo Cd em ratos. Para tanto, 30 ratos machos foram divididos em 6 grupos (n = 5 / grupo); o primeiro grupo serviu de controle, o segundo grupo foi tratado com injeção intraperitoneal (i.p) de 1 mg / kg / dia de Cd. O terceiro e o quarto grupos foram cotratados com 1 mg / kg / dia de Cd (i.p) e 10 e 20 mg / kg / dia de extrato de cogumelo morel (por via oral), respectivamente. Os dois grupos finais receberam gavagem oral de 10 e 20 mg / kg / dia de extrato de cogumelo morel sozinho. Após o tratamento por 17 dias, os animais foram sacrificados e os testículos e o epidídimo foram dissecados. Um testículo e epidídimo de cada animal foram processados para histologia, enquanto o outro testículo e epidídimo foram usados para produção diária de esperma (DSP) e ensaio cometa. Nossos resultados mostraram que os cogumelos Cd e morel não têm efeito sobre o peso do animal, mas o Cd diminui significativamente a contagem de DSP e danifica o DNA hereditário, que é revertido em grupos de cotratamento. Da mesma forma, os resultados histopatológicos dos testículos e do epidídimo mostram que os cogumelos morel controlam os danos a esses tecidos. Considerando que o extrato de cogumelo morel sozinho pode aumentar a produção de testosterona. Esses resultados concluem que os cogumelos morel não apenas controlam os danos causados pelo Cd, mas também podem ser usados como um mecanismo de proteção para danos hereditários ao DNA.

Abstract Cadmium (Cd) is one of the major toxicants, which affects human health through occupational and environmental exposure. In the current study, we evaluated the protective effects of morel mushrooms against Cd-induced reproductive damages in rats. For this purpose, 30 male rats were divided into 6 groups (n=5/group), the first group served as the control group, second group was treated with an intraperitoneal (i.p) injection of 1 mg/kg/day of Cd. Third and fourth groups were co-treated with 1 mg/kg/day of Cd (i.p) and 10 and 20 mg/kg/day of morel mushroom extract (orally) respectively. The final 2 groups received oral gavage of 10 and 20 mg/kg/day of morel mushroom extract alone. After treatment for 17 days, the animals were euthanized, and testes and epididymis were dissected out. One testis and epididymis of each animal were processed for histology, while the other testis and epididymis were used for daily sperm production (DSP) and comet assay. Our results showed that Cd and morel mushrooms have no effect on animal weight, but Cd significantly decreases the DSP count and damages the heritable DNA which is reversed in co-treatment groups. Similarly, the histopathological results of testes and epididymis show that morel mushrooms control the damage to these tissues. Whereas the morel mushroom extract alone could enhance the production of testosterone. These results conclude that morel mushrooms not only control the damage done by Cd, but it could also be used as a protection mechanism for heritable DNA damage.

https://doi.org/10.1590/1519-6984.250865 4 downloads

14.

Molecular epidemiology of Pseudomonas aeruginosa isolated from lower respiratory tract of ICU patients
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Yang, X.

; Lai, Y.

; Li, C.

; Yang, J.

; Jia, M.

; Sheng, J.

Brazilian Journal of Biology

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Mai 2021, Volume 81 Nº 2 Páginas 351 - 360

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Infecções do trato respiratório inferior (ITRIs) são as infecções mais comuns entre pacientes internados em unidade de terapia intensiva (UTI). Pseudomonas aeruginosa é a causa mais comum de ITRIs e está associada ao aumento da mortalidade. Diferentes espécies de Pseudomonas exibem diferentes perfis genéticos e resistência variada as drogas. O presente estudo determina a epidemiologia molecular através do método de fingerprinting de DNA e resistência as drogas de P. aeruginosa isoladas de pacientes com LTRIs internados em UTI. Um total de 79 P. aeruginosa isoladas de pacientes com ITRIs internados em UTI foram caracterizados por Polimorfismo de Comprimento de Fragmentos de Restrição (RFLP), DNA Polimórfico Amplificado ao Acaso (RAPD) e PCR Extrapalindrômico Repetitivo (REP-PCR). A resistência aos antibióticos foram determinadas pelos ensaios de concentrações inibitória mínima (MIC), enquanto os genes MDR, blaTEM, blaOXA, blaVIM, blaCTX-M-15 foram detectados pela reação em cadeia da polimerase (PCR). Das 137 Pseudomonas sp isoladas de pacientes de UTI, 57,7% dos isolados foram relatados como P. aeruginosa. A prevalência geral de P. aeruginosa entre os pacientes incluídos foram de 34,5%. A análise RAPD renderam 45 padrões diferentes com 72 clusters com nível de similaridade de 57% a 100%. A análise RFLP renderam 8 padrões diferentes com 14 clusters com 76% a 100% de similaridade. A análise de PCR do REP produziram 37 padrões diferentes com 65 clusters com nível de similaridade de 56% a 100%. Não houveram correlações entre os diferentes padrões de DNA observados entre os três diferentes métodos. Predominantes dos isolados (46,8%) eram resistentes à amicacina. Dos 79 isolados, 60,8% foram positivos para o gene blaTEM e 39,2% foram positivos para o gene blaOXA. P. aeruginosa foi predominantemente isolado de pacientes com ITRIs internados em UTI. A diferença no nível de similaridade observado entre os três métodos de fingerprinting do DNA indica que há alta variabilidade inter-strain. A alta variabilidade genética e os padrões de resistência indicam que devemos monitorar continuamente a tendência na prevalência e resistência a antibióticos de P. aeruginosa, especialmente em pacientes com ITRIs internados em UTI.

Abstract Lower respiratory tract infections (LRTIs) caused by Pseudomonas aeruginosa are the most common infection among hospitalized patients, associated with increased levels of morbidity, mortality and attributable health care costs. Increased resistant Pseudomonas worldwide has been quite meaningful to patients, especially in intensive care unit (ICUs). Different species of Pseudomonas exhibit different genetic profile and varied drug resistance. The present study determines the molecular epidemiology through DNA fingerprinting method and drug resistance of P. aeruginosa isolated from patients with LTRIs admitted in ICU. A total of 79 P. aeruginosa isolated from patients with LRTIs admitted in ICU were characterized by Restriction Fragment Length Polymorphism (RFLP), Random Amplified Polymorphic DNA (RAPD) and Repetitive Extrapalindromic PCR (REP-PCR). Antibiotic resistance was determined by minimum inhibitory concentration (MIC) assay while MDR genes, viz, blaTEM, blaOXA, blaVIM, blaCTX-M-15 were detected by polymerase chain reaction (PCR). Of the 137 Pseudomonas sp isolated from ICU patients, 57.7% of the isolates were reported to be P. aeruginosa. The overall prevalence of P. aeruginosa among the all included patients was 34.5%. The RAPD analysis yielded 45 different patterns with 72 clusters with 57% to 100% similarity level. The RFLP analysis yielded 8 different patterns with 14 clusters with 76% to 100% similarity level. The REP PCR analysis yielded 37 different patterns with 65 clusters with 56% to 100% similarity level. There was no correlation among the different DNA patterns observed between the three different methods. Predominant of the isolates (46.8%) were resistant to amikacin. Of the 79 isolates, 60.8% were positive for blaTEM gene and 39.2% were positive for blaOXA gene. P. aeruginosa was predominantly isolated from patients with LRTIs admitted in ICU. The difference in the similarity level observed between the three DNA fingerprinting methods indicates that there is high inter-strain variability. The high genetic variability and resistance patterns indicates that we should continuously monitor the trend in the prevalence and antibiotic resistance of P. aeruginosa especially in patients with LRTIs admitted in ICU.

https://doi.org/10.1590/1519-6984.226309 931 downloads

15.

Candida tropicalis sp. Nov., a novel, zinc-enriched yeast species found in China
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SU, Yu

; ZHU, Jian-Ning

; LI, Xiao-Ru

; ZHANG, Xin-Guo

; FENG, Ming

; WANG, Nan

; LIU, Wen-Jie

Food Science and Technology

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Mar 2021, Volume 41 Nº 1 Páginas 8 - 14

Resumo: En | Texto: En | PDF: En

Abstract Zinc is one of the most important trace elements and deficiency can lead to significant clinical complications. Microbial transformation is one of the most important methods used to supplement organic zinc and there may be some naturally occurring microorganisms that have both higher zinc tolerances and transformation capabilities. In this study, microorganisms which displayed such characteristics were widely screened, and a strain designated T-A was found. Morphological and molecular determination demonstrated that T-A is closely related to Candida tropicalis with 87% of 18S rDNA homology, with a G+C content measured by RP-HPLC of 88.42%. Candida tropicalis sp. T-A strains were shown to grow and transform zinc best at pH5 in medium with a zinc ion concentration of 8000 μg/mL at 28 °C for 121 hours. Our results showed C. tropicalis sp. T-A’s zinc content was 19.153 mg/g dry weight, with a relative bioavailability in rats of 173% when compared with traditional zinc supplements. Our study suggests that C. tropicalis sp. T-A could be exploited for use as a potential zinc supplement.

https://doi.org/10.1590/fst.23419 325 downloads

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