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Effects of N-acetylcysteine on the expressions of UCP1 and factors related to thyroid function in visceral adipose tissue of obese adults: a randomized, double-blind clinical trial N-乙酰半胱氨酸对肥胖成人内脏脂肪组织中 UCP1 和甲状腺功能相关因子表达的影响:一项随机双盲临床试验
IF 3.5 3区 医学 Q1 Medicine Pub Date : 2024-05-03 DOI: 10.1186/s12263-024-00744-7
Mohammad Hassan Sohouli, Ghazaleh Eslamian, Seyed Hossein Ardehali, Seyed Ahmad Raeissadat, Ghazaleh Shimi, Katayoun Pourvali, Hamid Zand
Evidences have shown that obesity is influenced by various factors, including various hormones such as thyroid hormones and the body’s metabolism rate. It seems that practical solutions such as weight loss diets and common drugs can affect these potential disorders. In this study, we investigate one of these common drugs, N-Acetylcysteine (NAC), on expressions of UCP1 and factors related to thyroid function in adults with obesity. The current investigation was carried out as a randomized clinical trial (RCT) including 43 adults with obesity who were potential candidates for bariatric surgery. These individuals were randomly divided into two groups: 600 mg of NAC (n = 22) or placebo (n = 21) for a duration of 8 weeks. Visceral adipose tissue was utilized in the context of bariatric surgery to investigate the gene expression of UCP1 and thyroid function. Polymerase chain reaction (PCR) was performed in duplicate for UCP1, DIO2, DIO3, THRα and β, and 18s RNA (as an internal control) using the provided instructions to investigate the expression of the respective genes. Our findings revealed that after 8 weeks compared to placebo, NAC caused a significant decrease in the expression of the DIO3 gene as one of the genes related to thyroid function and metabolism. However, regarding other related genes, no statistically significant was found (despite the increase in UCP1, DIO2, and THRα expression and decrease in THRβ expression). In addition, after adjustment of possible confounders, no significant effect was observed on anthropometric factors and serum levels of thyroid hormones. The results of this study indicate that, following an 8-week period, NAC effectively decreases the expression of the DIO3 gene in the visceral fat tissue, in comparison to the placebo.
有证据表明,肥胖受多种因素影响,包括各种激素,如甲状腺激素和人体新陈代谢率。减肥饮食和常用药物等实际解决方案似乎可以影响这些潜在的疾病。在本研究中,我们调查了这些常用药物之一--N-乙酰半胱氨酸(NAC)--对成人肥胖症患者体内 UCP1 的表达和甲状腺功能相关因素的影响。本次调查以随机临床试验(RCT)的形式进行,包括 43 名可能接受减肥手术的成年肥胖症患者。这些人被随机分为两组:服用 600 毫克 NAC(22 人)或安慰剂(21 人),为期 8 周。利用减肥手术中的内脏脂肪组织来研究 UCP1 的基因表达和甲状腺功能。聚合酶链反应(PCR)一式两份,按照提供的说明检测 UCP1、DIO2、DIO3、THRα 和 β 以及 18s RNA(作为内部对照),以研究相应基因的表达。我们的研究结果表明,与安慰剂相比,8 周后,NAC 会导致与甲状腺功能和新陈代谢相关的基因之一 DIO3 基因的表达显著下降。然而,在其他相关基因方面,尽管 UCP1、DIO2 和 THRα 的表达量有所增加,而 THRβ 的表达量则有所减少,但在统计学上却没有发现明显的影响(尽管 UCP1、DIO2 和 THRα 的表达量有所增加,而 THRβ 的表达量则有所减少)。此外,在调整了可能的混杂因素后,也没有观察到对人体测量因素和血清甲状腺激素水平的显著影响。本研究结果表明,与安慰剂相比,NAC 能在 8 周内有效降低内脏脂肪组织中 DIO3 基因的表达。
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引用次数: 0
Probiotics ameliorate endocrine disorders via modulating inflammatory pathways: a systematic review 益生菌通过调节炎症途径改善内分泌失调:系统综述
IF 3.5 3区 医学 Q1 Medicine Pub Date : 2024-03-19 DOI: 10.1186/s12263-024-00743-8
Marzieh Nemati, Bahareh Ebrahimi, Nima Montazeri-Najafabady
Probiotics has offered a new prospect to treat and manage a variety of endocrine disorders such as obesity, diabetes, non- alcoholic fatty liver disease and metabolic syndrome. The precise mechanisms by which probiotics exert their beneficial effects on endocrine disorders and its associated problems are still indecisive. It seems that regulating the immune system and suppressing pro-inflammatory pathways like tumor necrosis factor-α and interleukin-6 or triggering anti-inflammatory pathways like interleukin-4 and 10 may be one of the potential mechanisms in the managing of endocrine disorders. In this systematic review, we hypothesized that various probiotic strains (Lactobacillus, Biofidiobacteria, Streptococcus, Entrococcus, Clostridium, and Bacillus) alone or in combination with each other could manage endocrine disorders via modulating inflammatory pathways such as suppressing pro-inflammatory cytokines (IL-6, IL-12, TNF-α, TNF-β, NFκB, and MCP-1), stimulating anti-inflammatory cytokines (IL-4,IL-6, IL-22, IL-23, IL-33, and TGF-β) and maintaining other factors like C-reactive protein, Toll like receptors, LPS, and NK cells. Data source this search was performed in PubMed and Scopus. Both human and animal studies were included. Among more than 15,000 papers, 25 studies were identified as eligible for more assessments. Quality assessment of the studies was cheeked by two researchers independently by title and abstract screening, then article which have inclusion criteria were included, and data retrieved from the included full text studies as the authors had originally reported. Results specified that Lactobacillus has been the most widely used probiotic as well as which one exhibiting the extend of the therapeutic effects on endocrine disorders, especially obesity by modulating immune responses. Also, most studies have revealed that probiotics through suppressing pro-inflammatory pathways specially via reducing levels TNF-α cytokine exhibited protective or beneficial effects on endocrine diseases particularly obesity as well as through decreasing level of IL-6 induced therapeutic effects in diabetes. This systematic review suggests that probiotics could ameliorate endocrine disorders via their immunomodulatory effects.
益生菌为治疗和控制肥胖症、糖尿病、非酒精性脂肪肝和代谢综合征等多种内分泌疾病提供了新的前景。益生菌对内分泌失调及其相关问题产生有益影响的确切机制尚不明确。看来,调节免疫系统、抑制肿瘤坏死因子-α和白细胞介素-6等促炎途径或触发白细胞介素-4和白细胞介素-10等抗炎途径可能是控制内分泌失调的潜在机制之一。IL-12、TNF-α、TNF-β、NFκB 和 MCP-1),刺激抗炎细胞因子(IL-4、IL-6、IL-22、IL-23、IL-33 和 TGF-β),并维持 C 反应蛋白、Toll 受体、LPS 和 NK 细胞等其他因子。数据来源 该搜索在 PubMed 和 Scopus 上进行。人类研究和动物研究均包括在内。在 15,000 多篇论文中,有 25 项研究被确定为有资格进行更多评估。研究质量评估由两名研究人员通过标题和摘要筛选独立完成,然后纳入符合纳入标准的文章,并从纳入的全文研究中检索作者最初报告的数据。结果表明,乳酸杆菌是使用最广泛的益生菌,也是通过调节免疫反应对内分泌失调,尤其是肥胖症有最广泛治疗效果的益生菌。此外,大多数研究表明,益生菌通过抑制促炎途径,特别是通过降低 TNF-α 细胞因子的水平,对内分泌疾病,尤其是肥胖症,以及通过降低 IL-6 水平诱导的糖尿病治疗效果具有保护或有益作用。本系统综述表明,益生菌可通过其免疫调节作用改善内分泌失调。
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引用次数: 0
The impact of vitamin D on type 2 diabetes management: boosting PTP1B gene expression and physical activity benefits in rats 维生素 D 对 2 型糖尿病控制的影响:促进 PTP1B 基因表达和大鼠体育锻炼的益处
IF 3.5 3区 医学 Q1 Medicine Pub Date : 2024-03-02 DOI: 10.1186/s12263-023-00736-z
Kimya Khaledi, Rastegar Hoseini, Ahmad Gharzi
The protein tyrosine phosphatase 1B (PTP1B) plays a crucial role in the development of insulin resistance. Aerobic training (AT) and vitamin D (Vit D) supplementation have been shown to individually improve glucose tolerance and diabetes-related factors. However, the impact of their combined effect on PTP1B gene expression and serum irisin in the visceral adipose tissue remains unknown. This study aims to investigate whether 8 weeks of combined AT with Vit D supplementation can improve the expression of PTP1B in adipose tissue and serum irisin in obese rats with type 2 diabetes (T2D). Fifty male Wistar rats were divided into two groups: diabetic (n = 40) and non-diabetic (ND; n = 10). The diabetic rats were further divided into four groups: aerobic training with vitamin D supplementation (D + AT + Vit D; n = 10), aerobic training only (D + AT; n = 10), vitamin D supplementation only (D + Vit D; n = 10), and control (D + C; n = 10). The D + Vit D and D + AT + Vit D groups received 5000 IU of vitamin D via injection once a week, while the D + AT and D + C groups received sesame oil. Diabetes was induced in all groups except the nondiabetic group by intraperitoneal (IP) injection of streptozotocin. At the end of the intervention, blood and adipose tissue samples were collected, and RNA was extracted from adipose tissue for real-time PCR analysis of PPTP1B gene expression. There was an increase in serum Vit D and irisin levels and a decrease in HOMA-IR and PTP1B gene expression in the diabetic rat model treated with D + AT and injected with 50,000 IU/kg/week of Vit D. Comparatively, when treated with D + AT + Vit D, the downregulation of PTP1B was significantly higher (p = 0.049; p = 0.004), and there was a significant increase in irisin (p = 0.010; p = 0.001). The present study shows that the combined AT and Vit D supplementation positively impacts the expression of PTP1B in adipose tissue and serum irisin in rats with T2D. These findings suggest that combining AT with Vit D supplementation can provide a new and effective strategy to improve glucose tolerance and diabetes-related factors in individuals with T2D by regulating the expression of PTP1B in adipose tissue and promoting the synthesis of beneficial irisin protein.
蛋白酪氨酸磷酸酶 1B (PTP1B)在胰岛素抵抗的形成过程中起着至关重要的作用。有氧训练(AT)和维生素 D(Vit D)补充剂已被证明可单独改善葡萄糖耐量和糖尿病相关因素。然而,它们的联合作用对内脏脂肪组织中 PTP1B 基因表达和血清鸢尾素的影响仍然未知。本研究的目的是探讨联合服用 AT 和维生素 D 8 周能否改善肥胖的 2 型糖尿病(T2D)大鼠脂肪组织中 PTP1B 基因的表达和血清鸢尾素。50 只雄性 Wistar 大鼠分为两组:糖尿病组(n = 40)和非糖尿病组(n = 10)。糖尿病大鼠又分为四组:进行有氧训练并补充维生素 D(D + AT + Vit D;n = 10)、仅进行有氧训练(D + AT;n = 10)、仅补充维生素 D(D + Vit D;n = 10)和对照组(D + C;n = 10)。D + 维生素 D 组和 D + AT + 维生素 D 组每周注射一次 5000 IU 维生素 D,而 D + AT 组和 D + C 组则服用芝麻油。除非糖尿病组外,其他各组均通过腹腔注射链脲佐菌素诱发糖尿病。干预结束后,收集血液和脂肪组织样本,并从脂肪组织中提取 RNA 进行 PPTP1B 基因表达的实时 PCR 分析。在使用 D + AT 和注射 50,000 IU/kg/week Vit D 治疗的糖尿病大鼠模型中,血清 Vit D 和鸢尾素水平增加,HOMA-IR 和 PTP1B 基因表达下降;相比之下,在使用 D + AT + Vit D 治疗时,PTP1B 的下调幅度明显更高(p = 0.049;p = 0.004),而鸢尾素则显著增加(p = 0.010;p = 0.001)。本研究表明,联合补充 AT 和维生素 D 会对 T2D 大鼠脂肪组织中 PTP1B 的表达和血清鸢尾素产生积极影响。这些研究结果表明,通过调节 PTP1B 在脂肪组织中的表达和促进有益鸢尾素蛋白的合成,将 AT 与维生素 D 补充剂结合使用可为改善 T2D 患者的葡萄糖耐量和糖尿病相关因素提供一种新的有效策略。
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引用次数: 0
Palm-based tocotrienol-rich fraction (TRF) supplementation modulates cardiac sod1 expression, fxr target gene expression, and tauro-conjugated bile acid levels in aleptinemic mice fed a high-fat diet 补充以棕榈为基础的富含生育三烯酚的组分(TRF)可调节以高脂肪饮食喂养的瘦肉精小鼠的心脏sod1表达、fxr靶基因表达和牛磺酸结合胆汁酸水平
IF 3.5 3区 医学 Q1 Medicine Pub Date : 2024-02-27 DOI: 10.1186/s12263-024-00742-9
Nur Aliah Natasha Md Shahrulnizam, Mohd Danial Mohd Efendy Goon, Sharaniza Ab Rahim, Sook Weih Lew, Siti Hamimah Sheikh Abdul Kadir, Effendi Ibrahim
Tocotrienol-rich fraction (TRF) has been reported to protect the heart from oxidative stress-induced inflammation. It is, however, unclear whether the protective effects of TRF against oxidative stress involve the activation of farnesoid X receptor (fxr), a bile acid receptor, and the regulation of bile acid metabolites. In the current study, we investigated the effects of TRF supplementation on antioxidant activities, expression of fxr and its target genes in cardiac tissue, and serum untargeted metabolomics of high-fat diet-fed mice. Mice were divided into high-fat diet (HFD) with or without TRF supplementation (control) for 6 weeks. At the end of the intervention, body weight (BW), waist circumference (WC), and random blood glucose were measured. Heart tissues were collected, and the gene expression of sod1, sod2, gpx, and fxr and its target genes shp and stat3 was determined. Serum was subjected to untargeted metabolomic analysis using UHPLC-Orbitrap. In comparison to the control, the WC of the TRF-treated group was higher (p >0.05) than that of the HFD-only group, in addition there was no significant difference in weight or random blood glucose level. Downregulation of sod1, sod2, and gpx expression was observed in TRF-treated mice; however, only sod1 was significant when compared to the HFD only group. The expression of cardiac shp (fxr target gene) was significantly upregulated, but stat3 was significantly downregulated in the TRF-treated group compared to the HFD-only group. Biochemical pathways found to be influenced by TRF supplementation include bile acid secretion, primary bile acid biosynthesis, and biotin and cholesterol metabolism. In conclusion, TRF supplementation in HFD-fed mice affects antioxidant activities, and more interestingly, TRF also acts as a signaling molecule that is possibly involved in several bile acid-related biochemical pathways accompanied by an increase in cardiac fxr shp expression. This study provides new insight into TRF in deregulating bile acid receptors and metabolites in high-fat diet-fed mice.
据报道,富含生育三烯酚的组分(TRF)可保护心脏免受氧化应激引起的炎症。然而,TRF对氧化应激的保护作用是否涉及胆汁酸受体法尼类脂X受体(fxr)的激活和胆汁酸代谢物的调节,目前尚不清楚。在本研究中,我们研究了补充 TRF 对高脂饮食小鼠抗氧化活性、心脏组织中 fxr 及其靶基因的表达以及血清非靶代谢组学的影响。小鼠被分为补充或不补充TRF的高脂饮食(对照组),为期6周。干预结束时,测量体重(BW)、腰围(WC)和随机血糖。采集心脏组织,测定 sod1、sod2、gpx 和 fxr 及其靶基因 shp 和 stat3 的基因表达。使用 UHPLC-Orbitrap 对血清进行非靶向代谢组学分析。与对照组相比,TRF处理组的WC高于纯HFD组(P>0.05),此外,体重和随机血糖水平也无显著差异。在TRF处理组小鼠中观察到sod1、sod2和gpx的表达下调;然而,与仅含高纤维食物组相比,只有sod1的表达下调显著。与纯高密度脂蛋白饮食组相比,TRF处理组的心脏shp(fxr靶基因)表达明显上调,但stat3表达明显下调。补充TRF可影响的生化途径包括胆汁酸分泌、初级胆汁酸生物合成以及生物素和胆固醇代谢。总之,HFD喂养的小鼠补充TRF会影响抗氧化活性,更有趣的是,TRF还是一种信号分子,可能参与了多种胆汁酸相关的生化途径,并伴随着心脏fxr shp表达的增加。本研究为TRF在高脂饮食小鼠胆汁酸受体和代谢物失调中的作用提供了新的见解。
{"title":"Palm-based tocotrienol-rich fraction (TRF) supplementation modulates cardiac sod1 expression, fxr target gene expression, and tauro-conjugated bile acid levels in aleptinemic mice fed a high-fat diet","authors":"Nur Aliah Natasha Md Shahrulnizam, Mohd Danial Mohd Efendy Goon, Sharaniza Ab Rahim, Sook Weih Lew, Siti Hamimah Sheikh Abdul Kadir, Effendi Ibrahim","doi":"10.1186/s12263-024-00742-9","DOIUrl":"https://doi.org/10.1186/s12263-024-00742-9","url":null,"abstract":"Tocotrienol-rich fraction (TRF) has been reported to protect the heart from oxidative stress-induced inflammation. It is, however, unclear whether the protective effects of TRF against oxidative stress involve the activation of farnesoid X receptor (fxr), a bile acid receptor, and the regulation of bile acid metabolites. In the current study, we investigated the effects of TRF supplementation on antioxidant activities, expression of fxr and its target genes in cardiac tissue, and serum untargeted metabolomics of high-fat diet-fed mice. Mice were divided into high-fat diet (HFD) with or without TRF supplementation (control) for 6 weeks. At the end of the intervention, body weight (BW), waist circumference (WC), and random blood glucose were measured. Heart tissues were collected, and the gene expression of sod1, sod2, gpx, and fxr and its target genes shp and stat3 was determined. Serum was subjected to untargeted metabolomic analysis using UHPLC-Orbitrap. In comparison to the control, the WC of the TRF-treated group was higher (p >0.05) than that of the HFD-only group, in addition there was no significant difference in weight or random blood glucose level. Downregulation of sod1, sod2, and gpx expression was observed in TRF-treated mice; however, only sod1 was significant when compared to the HFD only group. The expression of cardiac shp (fxr target gene) was significantly upregulated, but stat3 was significantly downregulated in the TRF-treated group compared to the HFD-only group. Biochemical pathways found to be influenced by TRF supplementation include bile acid secretion, primary bile acid biosynthesis, and biotin and cholesterol metabolism. In conclusion, TRF supplementation in HFD-fed mice affects antioxidant activities, and more interestingly, TRF also acts as a signaling molecule that is possibly involved in several bile acid-related biochemical pathways accompanied by an increase in cardiac fxr shp expression. This study provides new insight into TRF in deregulating bile acid receptors and metabolites in high-fat diet-fed mice.","PeriodicalId":54337,"journal":{"name":"Genes and Nutrition","volume":"1 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139978492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dysfunction of DMT1 and miR-135b in the gut-testis axis in high-fat diet male mice 高脂饮食雄性小鼠肠道-睾丸轴中 DMT1 和 miR-135b 的功能障碍
IF 3.5 3区 医学 Q1 Medicine Pub Date : 2024-01-19 DOI: 10.1186/s12263-024-00737-6
Yanru Zhang, Ruike Ding, Yulin Zhang, Jia Qi, Wenbin Cao, Lijun Deng, Lin Zhou, Yun Ye, Ying Xue, Enqi Liu
Obese patients have been found to be susceptible to iron deficiency, and malabsorption of dietary iron is the cause of obesity-related iron deficiency (ORID). Divalent metal transporter 1 (DMT1) and ferroportin (FPN), are two transmembrane transporter proteins expressed in the duodenum that are closely associated with iron absorption. However, there have been few studies on the association between these two proteins and the increased susceptibility to iron deficiency in obese patients. Chronic inflammation is also thought to be a cause of obesity-related iron deficiency, and both conditions can have an impact on spermatogenesis and impair male reproductive function. Based on previous studies, transgenerational epigenetic inheritance through gametes was observed in obesity. Our results showed that obese mice had decreased blood iron levels (p < 0.01), lower protein and mRNA expression for duodenal DMT1 (p < 0.05), but no statistically significant variation in mRNA expression for duodenal FPN (p > 0.05); there was an increase in sperm miR-135b expression (p < 0.05). Bioinformatics revealed ninety overlapping genes and further analysis showed that they were primarily responsible for epithelial cilium movement, fatty acid beta-oxidation, protein dephosphorylation, fertilization, and glutamine transport, which are closely related to spermatogenesis, sperm development, and sperm viability in mice. In obese mice, we observed downregulation of DMT1 in the duodenum and upregulation of miR-135b in the spermatozoa.
研究发现,肥胖患者容易缺铁,而饮食中铁的吸收不良是肥胖相关性缺铁症(ORID)的病因。二价金属转运蛋白 1(DMT1)和铁蛋白(FPN)是在十二指肠中表达的两种跨膜转运蛋白,与铁的吸收密切相关。然而,有关这两种蛋白与肥胖患者更易缺铁之间关系的研究却很少。慢性炎症也被认为是肥胖相关缺铁症的原因之一,这两种情况都会影响精子生成,损害男性生殖功能。根据以往的研究,肥胖症可通过配子发生跨代表观遗传。我们的研究结果表明,肥胖小鼠的血铁水平降低(P 0.05);精子 miR-135b 表达增加(P < 0.05)。生物信息学发现了九十个重叠基因,进一步分析表明,这些基因主要负责上皮纤毛运动、脂肪酸β-氧化、蛋白质去磷酸化、受精和谷氨酰胺转运,与小鼠的精子发生、精子发育和精子活力密切相关。在肥胖小鼠中,我们观察到十二指肠中 DMT1 的下调和精子中 miR-135b 的上调。
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引用次数: 0
Purple grape juice improves performance of recreational runners, but the effect is genotype dependent: a double blind, randomized, controlled trial 紫葡萄汁可以提高休闲跑步者的表现,但效果是基因型依赖的:一项双盲、随机、对照试验
IF 3.5 3区 医学 Q1 Medicine Pub Date : 2022-06-02 DOI: 10.1186/s12263-022-00710-1
de Sousa, Bruno Rafael Virginio, de Lima Tavares Toscano, Lydiane, de Almeida Filho, Eder Jackson Bezerra, Sena, Klécia Farias, Costa, Matheus Silveira, de Souza Cunha, Rebeka Correia, de Souza Siqueira Quintans, Jullyana, Heimfarth, Luana, Marques, Aline Telles Biasoto, da Silva, Darcilene Fiuza, de Campos, Luis Felipe Castelli Correia, Persuhn, Darlene Camati, Silva, Alexandre Sérgio
We examined the influence of superoxide dismutase 3 (SOD3) Arg213Gly and Peroxisome Proliferator-Activated α-Receptor (PPARα) 7G/C polymorphisms to a single dose of purple grape juice supplementation on time-to-exhaustion running test, redox balance and muscle damage in recreational runners. Forty-seven male recreational runners performed a running test until exhaustion after supplementation with grape juice or a control drink. Serum total antioxidant capacity (TAC), malondialdehyde (MDA), plasma nitrite (NO), creatine kinase (CK) and lactate dehydrogenase (LDH) were measured pre and post exercise. Also, polymorphisms were analyzed in DNA extracted from the oral mucosa. Grape juice improved the time-to-exhaustion. When analyzed by genotype, the recreational runners with GG+CG genotypes of the SOD3 gene had greater time-to-exhaustion than the CC genotype, but was no different for the PAPRα gene. A slight difference was noted in TAC, since the CC genotype of the SOD3 gene showed higher TAC values in the post-exercise compared to the baseline and with pre-exercise, but these values did not increase compared to the CG+GG group, respectively. The SOD3 and PPARα genes were similar at all times for the other biochemical variables. The ergogenic effect of grape juice was genotype-dependent for SOD3 Arg213Gly. However, biochemical redox balance markers did not explain this difference.
我们研究了单剂量紫葡萄汁对超氧化物歧化酶3 (SOD3) Arg213Gly和过氧化物酶体增殖物激活α-受体(PPARα) 7G/C多态性对休闲跑步者疲劳时间测试、氧化还原平衡和肌肉损伤的影响。47名男性休闲跑步者在补充葡萄汁或对照饮料后进行了跑步测试,直到筋疲力尽。测定运动前后血清总抗氧化能力(TAC)、丙二醛(MDA)、血浆亚硝酸盐(NO)、肌酸激酶(CK)和乳酸脱氢酶(LDH)。同时,对口腔黏膜提取的DNA进行多态性分析。葡萄汁缩短了疲劳时间。通过基因型分析,SOD3基因GG+CG基因型的休闲跑步者比CC基因型的跑步者有更长的疲劳时间,但PAPRα基因没有差异。TAC略有差异,因为SOD3基因的CC基因型在运动后与基线和运动前相比显示更高的TAC值,但这些值分别与CG+GG组相比没有增加。SOD3和PPARα基因在其他生化变量中始终相似。葡萄汁对SOD3 Arg213Gly的基因型依赖性。然而,生化氧化还原平衡标志物并不能解释这种差异。
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引用次数: 1
Genetic support of a causal relationship between iron status and atrial fibrillation: a Mendelian randomization study 铁状态和房颤之间因果关系的遗传支持:孟德尔随机研究
IF 3.5 3区 医学 Q1 Medicine Pub Date : 2022-05-30 DOI: 10.1186/s12263-022-00708-9
Wang, Tianyi, Cheng, Jun, Wang, Yanggan
Atrial fibrillation is the most common arrhythmia disease. Animal and observational studies have found a link between iron status and atrial fibrillation. However, the causal relationship between iron status and AF remains unclear. The purpose of this investigation was to use Mendelian randomization (MR) analysis, which has been widely applied to estimate the causal effect, to reveal whether systemic iron status was causally related to atrial fibrillation. Single nucleotide polymorphisms (SNPs) strongly associated (P < 5 × 10−8) with four biomarkers of systemic iron status were obtained from a genome-wide association study involving 48,972 subjects conducted by the Genetics of Iron Status consortium. Summary-level data for the genetic associations with atrial fibrillation were acquired from the AFGen (Atrial Fibrillation Genetics) consortium study (including 65,446 atrial fibrillation cases and 522,744 controls). We used a two-sample MR analysis to obtain a causal estimate and further verified credibility through sensitivity analysis. Genetically instrumented serum iron [OR 1.09; 95% confidence interval (CI) 1.02–1.16; p = 0.01], ferritin [OR 1.16; 95% CI 1.02–1.33; p = 0.02], and transferrin saturation [OR 1.05; 95% CI 1.01–1.11; p = 0.01] had positive effects on atrial fibrillation. Genetically instrumented transferrin levels [OR 0.90; 95% CI 0.86–0.97; p = 0.006] were inversely correlated with atrial fibrillation. In conclusion, our results strongly elucidated a causal link between genetically determined higher iron status and increased risk of atrial fibrillation. This provided new ideas for the clinical prevention and treatment of atrial fibrillation.
心房颤动是最常见的心律失常疾病。动物和观察性研究已经发现了铁状态和房颤之间的联系。然而,铁状态与房颤之间的因果关系尚不清楚。本研究的目的是使用孟德尔随机化(MR)分析来揭示全身铁状态是否与房颤有因果关系,孟德尔随机化(MR)分析已被广泛应用于估计因果关系。在一项涉及48,972名受试者的全基因组关联研究中,由遗传铁状态联盟(Genetics of iron status consortium)获得了与四种全身铁状态生物标志物密切相关(P < 5 × 10−8)的单核苷酸多态性(SNPs)。房颤遗传关联的概要数据来自AFGen(房颤遗传学)联合研究(包括65,446例房颤病例和522,744例对照)。我们使用双样本MR分析获得因果估计,并通过敏感性分析进一步验证可信性。基因检测血清铁[OR 1.09;95%置信区间(CI) 1.02 ~ 1.16;p = 0.01],铁蛋白[OR 1.16;95% ci 1.02-1.33;p = 0.02],转铁蛋白饱和度[OR 1.05;95% ci 1.01-1.11;P = 0.01]对房颤有积极作用。基因检测转铁蛋白水平[OR 0.90;95% ci 0.86-0.97;P = 0.006]与房颤呈负相关。总之,我们的研究结果有力地阐明了基因决定的高铁状态和房颤风险增加之间的因果关系。这为房颤的临床防治提供了新的思路。
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引用次数: 3
Impact of anthocyanin on genetic stability in mammary adenocarcinoma-induced mice treated with methotrexate 花青素对甲氨蝶呤治疗乳腺腺癌小鼠遗传稳定性的影响
IF 3.5 3区 医学 Q1 Medicine Pub Date : 2022-05-05 DOI: 10.1186/s12263-022-00709-8
Khamis, Abeer A., Ibrahim, Rana M., El-hefnawy, Gad B., Ibrahim, Wafaa M., Ali, Ehab M.
Genetic instability leads to genome mutations, changes in nucleotide sequences, rearrangements, and gains or losses of part of the chromosomes. This instability can initiate and develop cancer. This study evaluated genomic stability in methotrexate and anthocyanin-treated mammary adenocarcinoma model. Seventy albino mice were divided into seven groups: negative control, anthocyanin, methotrexate, Ehrlich’s solid tumor; Ehrlich’s solid tumor and methotrexate; Ehrlich’s solid tumor and anthocyanin; and Ehrlich’s solid tumor, methotrexate, and anthocyanin groups. Tumor weight and size were evaluated. Serum arylesterase activity was low in all the induced tumors and those treated with anthocyanin, methotrexate, or both. Poly[adenosine diphosphate (ADP)-ribose] polymerase activity was high, and glutathione S-transferase activity was low in the tumors treated with anthocyanin, methotrexate, or both, compared with that of the untreated tumor. There was an increase in DNA damage in the mice with solid tumors and those injected with methotrexate or methotrexate and anthocyanin, compared with that in the untreated mice. There was a decrease in genetic instability and DNA damage in the tumor-bearing mice treated with anthocyanin, with a concomitant increase in nuclear poly[adenosine diphosphate (ADP)-ribose] polymerase activity, compared with those of the untreated group. Anthocyanin exerted positive effects in the treatment of mammary adenocarcinoma.
遗传不稳定性导致基因组突变、核苷酸序列改变、重排以及部分染色体的获得或丢失。这种不稳定性会引发和发展癌症。本研究评估了甲氨蝶呤和花青素治疗乳腺腺癌模型的基因组稳定性。70只白化小鼠分为7组:阴性对照、花青素组、甲氨蝶呤组、埃利希实体瘤组;埃利希氏实体瘤和甲氨蝶呤;埃利希实体瘤与花青素;和埃利希氏实体瘤,甲氨蝶呤和花青素组。评估肿瘤的重量和大小。血清芳基酯酶活性在所有诱导肿瘤和花青素、甲氨蝶呤或两者同时治疗的肿瘤中均较低。与未治疗的肿瘤相比,花青素、甲氨蝶呤或两者治疗的肿瘤中聚二磷酸腺苷(ADP)核糖聚合酶活性高,谷胱甘肽s -转移酶活性低。与未治疗的小鼠相比,患有实体瘤的小鼠和注射甲氨蝶呤或甲氨蝶呤和花青素的小鼠的DNA损伤有所增加。与未治疗组相比,接受花青素治疗的荷瘤小鼠的遗传不稳定性和DNA损伤有所减少,同时核聚二磷酸腺苷(ADP)核糖聚合酶活性增加。花青素对乳腺腺癌的治疗有积极作用。
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引用次数: 0
Interactions between red and processed meat consumption and APOA5 gene variants associated with the incidence of metabolic syndrome in Korean adults 韩国成人代谢综合征发病率与红肉和加工肉消费与APOA5基因变异之间的相互作用
IF 3.5 3区 医学 Q1 Medicine Pub Date : 2022-04-25 DOI: 10.1186/s12263-022-00707-w
Choi, Woo Jeong, Shin, Dayeon
Metabolic syndrome (MetS) is characterized by the coexistence of disorders such as diabetes, hypertension, hyperlipidemia, and obesity and is affected by genetic factors. Previous genome-wide association studies (GWAS) suggested that APOA5 gene variants were significantly associated with MetS and its components. Dietary factors such as red and processed meat consumption can cause chronic diseases, including hypertension, diabetes, and vascular depression. The aim of this study was to investigate the modulation of the incidence of MetS by the interaction between APOA5 rs662799 polymorphism and red and processed meat consumption. In this prospective cohort study, 3266 participants were collected from the Korea Association REsource (KARE) cohort of the Korean Genome and Epidemiology Study (KoGES) from 2001 to 2016. APOA5 rs662799 polymorphism was extracted by GWAS using the Korean Chip. Red and processed meat consumption data were assessed using a semi-quantitative food frequency questionnaire. The incidence of MetS in carriers of the minor G allele of rs662799 (AG + GG) and the third tertile of red and processed meat consumption (serving/day) was higher than those with the major allele of rs662799 (AA) and the first tertile of red and processed meat consumption (HR 1.70, 95% CI 1.30–2.22, p interaction = 0.002). An association between the presence of the minor alleles of rs662799 and high red and processed meat consumption and the incidence of MetS was observed in Korean adults.
代谢综合征(MetS)以糖尿病、高血压、高脂血症、肥胖等疾病共存为特征,并受遗传因素影响。先前的全基因组关联研究(GWAS)表明,APOA5基因变异与MetS及其组分显著相关。饮食因素,如食用红肉和加工肉,可导致慢性疾病,包括高血压、糖尿病和血管抑郁症。本研究的目的是研究APOA5 rs662799多态性与红肉和加工肉消费之间的相互作用对MetS发病率的调节。在这项前瞻性队列研究中,从2001年至2016年韩国基因组与流行病学研究(KoGES)的韩国协会资源(KARE)队列中收集了3266名参与者。APOA5 rs662799多态性采用韩国芯片进行GWAS提取。使用半定量食物频率问卷评估红肉和加工肉的消费数据。携带rs662799次要G等位基因(AG + GG)和食用红肉和加工肉的第三分位数(日份数)的人患met的几率高于携带rs662799主要等位基因(AA)和食用红肉和加工肉的第一分位数的人(HR 1.70, 95% CI 1.30-2.22, p互作= 0.002)。在韩国成年人中观察到rs662799小等位基因的存在与大量食用红肉和加工肉制品以及MetS的发病率之间存在关联。
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Genes and Nutrition
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