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Genetics of T2DM and Its Chronic Complications: Are We Any Closer to the Individual Prediction of Genetic Risk? 2型糖尿病及其慢性并发症的遗传学:我们是否更接近于遗传风险的个体预测?
IF 0.8 4区 生物学 Q4 BIOLOGY Pub Date : 2022-01-01 DOI: 10.14712/fb2022068050159
D Galuška, L Dlouhá, J A Hubáček, K Kaňová

Type 2 diabetes mellitus (T2DM) is a complex disease that has risen in global prevalence over recent decades, resulting in concomitant and enormous socio-economic impacts. In addition to the well-documented risk factors of obesity, poor dietary habits and sedentary lifestyles, genetic background plays a key role in the aetiopathogenesis of diabetes and the development of associated micro- and macrovascular complications. Recent advances in genomic research, notably next-generation sequencing and genome- wide association studies, have greatly improved the efficiency with which genetic backgrounds to complex diseases are analysed. To date, several hundred single-nucleotide polymorphisms have been associated with T2DM or its complications. Given the polygenic background to T2DM (and numerous other complex diseases), the degree of genetic predisposition can be treated as a "continuous trait" quantified by a genetic risk score. Focusing mainly on the Central European population, this review summarizes recent state-of-the-art methods that have enabled us to better determine the genetic architecture of T2DM and the utility of genetic risk scores in disease prediction.

2型糖尿病(T2DM)是一种复杂的疾病,近几十年来全球患病率上升,造成了伴随的巨大社会经济影响。除了肥胖、不良饮食习惯和久坐不动的生活方式等有充分证据的危险因素外,遗传背景在糖尿病的病因发生和相关微血管和大血管并发症的发展中也起着关键作用。基因组研究的最新进展,特别是下一代测序和全基因组关联研究,大大提高了分析复杂疾病遗传背景的效率。迄今为止,已有数百种单核苷酸多态性与2型糖尿病或其并发症有关。鉴于2型糖尿病(以及许多其他复杂疾病)的多基因背景,遗传易感性的程度可以被视为一种通过遗传风险评分量化的“连续性状”。本综述主要关注中欧人群,总结了最新的最先进的方法,这些方法使我们能够更好地确定2型糖尿病的遗传结构和遗传风险评分在疾病预测中的应用。
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引用次数: 0
Up-regulation of MiR-146b-5p Inhibits Fibrotic Lung Pericytes via Inactivation of the Notch1/PDGFRβ/ROCK1 Pathway. MiR-146b-5p上调通过Notch1/PDGFRβ/ROCK1通路失活抑制纤维化肺周细胞
IF 0.8 4区 生物学 Q4 BIOLOGY Pub Date : 2022-01-01 DOI: 10.14712/fb2022068050180
W Shuai, Q Chen, X Zhou

Lung fibrosis is a serious human pathology. MiR-146b-5p is down-regulated in idiopathic pulmonary fibrosis, and the Notch1/PDGFRβ/ROCK1 pathway is activated. However, the relation between miR-146b-5p and the Notch1/PDGFRβ/ROCK1 pathway in lung fibrosis remains unclear. To investigate the function of miR-146b-5p in lung fibrosis, an in vivo model of lung fibrosis was established in mice by bleomycin. The fibrosis in lung tissues of mice was observed by HE, Masson and Sirius Red staining. Lung pericytes were isolated and identified by fluorescence microscopy. Immunofluorescence staining and Western blot were used to investigate the expression of desmin, NG2, collagen I and α-SMA. CCK8 assay was used to assess the cell viability, and flow cytometry was performed to evaluate the cell cycle in pericytes. Furthermore, the correlation between miR-146b-5p and Notch1 was analysed by Spearman analysis. The mechanism by which miR-146b-5p affects pericytes and lung fibrosis via the Notch1/ PDGFRβ/ROCK1 pathway was explored by RT-qPCR, Western blot, immunofluorescence staining and dual luciferase reporter gene assay. In bleomycin-treated mice, miR-146b-5p was down-regulated, while Notch1 was up-regulated. Up-regulation of miR-146b-5p significantly inhibited the viability and induced G1 phase arrest of lung pericytes. MiR-146b-5p mimics up-regulated miR-146b-5p, desmin, and NG2 and down-regulated α-SMA and collagen I in the lung pericytes. Additionally, miR-146b-5p was negatively correlated with Notch1, and miR-146b-5p interacted with Notch1. Over-expression of miR-146b-5p inactivated the Notch1/PDGFRβ/ROCK1 pathway. Our results indicate that up-regulation of miR-146b-5p inhibits fibrosis in lung pericytes via modulation of the Notch1/PDGFRβ/ROCK1 pathway. Thus, our study might provide a novel target against lung fibrosis.

肺纤维化是一种严重的人类病理。MiR-146b-5p在特发性肺纤维化中下调,Notch1/PDGFRβ/ROCK1通路被激活。然而,miR-146b-5p与Notch1/PDGFRβ/ROCK1通路在肺纤维化中的关系尚不清楚。为了研究miR-146b-5p在肺纤维化中的作用,我们用博来霉素建立了小鼠肺纤维化的体内模型。HE染色、Masson染色、Sirius Red染色观察小鼠肺组织纤维化程度。采用荧光显微镜分离鉴定肺周细胞。采用免疫荧光染色和Western blot检测desmin、NG2、I型胶原和α-SMA的表达。CCK8法测定细胞活力,流式细胞术测定周细胞周期。此外,采用Spearman分析miR-146b-5p与Notch1的相关性。通过RT-qPCR、Western blot、免疫荧光染色和双荧光素酶报告基因检测,探讨miR-146b-5p通过Notch1/ PDGFRβ/ROCK1通路影响周细胞和肺纤维化的机制。在博莱霉素处理的小鼠中,miR-146b-5p下调,而Notch1上调。上调miR-146b-5p显著抑制肺周细胞活力,诱导肺周细胞G1期阻滞。MiR-146b-5p模拟肺周细胞中上调的MiR-146b-5p、desmin和NG2以及下调的α-SMA和胶原I。此外,miR-146b-5p与Notch1呈负相关,miR-146b-5p与Notch1相互作用。过表达miR-146b-5p使Notch1/PDGFRβ/ROCK1通路失活。我们的研究结果表明,上调miR-146b-5p通过调节Notch1/PDGFRβ/ROCK1途径抑制肺周细胞纤维化。因此,我们的研究可能提供抗肺纤维化的新靶点。
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引用次数: 0
A Contribution to the Biogeography of Ablepharus anatolicus and A. budaki (Squamata: Scincidae) Using Ecological Niche Modeling in Turkey 利用生态位模型对土耳其安纳托利库和布达基库生物地理学的贡献
IF 0.7 4区 生物学 Q4 BIOLOGY Pub Date : 2021-12-23 DOI: 10.3409/fb_69-4.17
Muammer Kurnaz, S. S. H. Yousefkhani
The Anatolian Peninsula is very richly biodiverse in terms of its location and with new studies, this wealth has gradually increased as new taxa of Anatolian origin are added to the literature. Ablepharus budaki and A. anatolicus, formerly considered to be subspecies of A. kitaibelli and A. budaki respectively, are spread throughout the southern part of Anatolia. Although recent phylogenetic and morphological studies revealed their species status, no information was given about the relation of the species with each other in terms of ecological niche. In this study, our primary goal was to discover whether the niches of these two taxa were different from each other. Considering the analyses made within the scope of this study, it has been revealed that both A. anatolicus and A. budaki are different from each other in terms of their ecological niche. However, since these two taxa have very small contact regions, an example of parapatric speciation, and their distribution areas cover almost completely different geographies, we can say that they have different ecological niche requirements, according to the results of this study. As a result, this study supported the findings in literature and the idea that these taxa are two different species
安纳托利亚半岛在地理位置上具有丰富的生物多样性,随着新的研究,随着安纳托利亚起源的新分类群被添加到文献中,这一财富逐渐增加。Ablepharus budaki和A.anatolicus,以前分别被认为是A.kitaibelli和A.budaki的亚种,分布在安纳托利亚的整个南部。尽管最近的系统发育和形态学研究揭示了它们的物种状况,但没有提供关于物种之间生态位关系的信息。在这项研究中,我们的主要目标是发现这两个分类群的生态位是否彼此不同。考虑到在本研究范围内进行的分析,已经发现A.anatolicus和A.budaki在生态位方面彼此不同。然而,根据这项研究的结果,由于这两个分类群的接触区域非常小,是副父系物种形成的一个例子,而且它们的分布区域覆盖了几乎完全不同的地理位置,我们可以说它们有不同的生态位要求。因此,这项研究支持了文献中的发现,以及这些分类群是两个不同物种的观点
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引用次数: 3
Effects of Salvianolic Acid B/ginsenoside Rg1 Combination Against Chronic Pulmonary Embolism Induced by Polystyrene Microspheres 丹酚酸B/人参皂苷Rg1联合应用对聚苯乙烯微球诱导的慢性肺栓塞的影响
IF 0.7 4区 生物学 Q4 BIOLOGY Pub Date : 2021-12-23 DOI: 10.3409/fb_69-4.20
Huimiao Bian, Na Han, Linlin Wang, Xiao-yu Wang, Kenka Cho, Jun Yin, B. Jiang
Pulmonary embolism (PE) is the most life-threatening complication of venous thromboembolism, but few effective treatments have been discovered to attenuate chronic PE currently. In this study, we investigated the protective effects of salvianolic acid B (SalB) and ginsenoside Rg1 (Rg1) combination (SalB/Rg1) on chronic PE and explored the potential mechanisms. The PE model was induced by 45 μm polystyrene microspheres and 20 mg/kg of SalB/Rg1 was administered to PE rats intraperitoneally. A histopathological analysis of the lungs and heart was performed through hematoxylin and eosin staining and immunohistochemical analysis. The pulmonary index and right ventricular cardiomyocyte cross-sectional area were evaluated. SalB/Rg1 markedly downregulated pulmonary index, attenuated pulmonary interstitial changes, suppressed neutrophil infiltration, prevented collagen deposition, and inhibited MMP-9 activities in the lung. We also found that SalB/Rg1 improved right ventricular hypertrophy accompanied by reducing the cardiomyocyte cross-sectional area. These data suggest that SalB/Rg1 played a protective role against microsphere-induced PE and holds a high potential for the treatment of PE in the future.
肺栓塞(PE)是静脉血栓栓塞最危及生命的并发症,但目前很少发现有效的治疗方法来减轻慢性PE。在本研究中,我们研究了丹酚酸B(SalB)和人参皂苷Rg1(Rg1)组合(SalB/Rg1)对慢性PE的保护作用,并探讨了潜在的机制。用45μm聚苯乙烯微球诱导PE模型,并向PE大鼠腹膜内给予20mg/kg的SalB/Rg1。通过苏木精和伊红染色以及免疫组织化学分析对肺和心脏进行组织病理学分析。评估肺指数和右心室心肌细胞截面积。SalB/Rg1显著下调肺指数,减轻肺间质变化,抑制中性粒细胞浸润,防止胶原沉积,并抑制肺中MMP-9的活性。我们还发现SalB/Rg1改善了右心室肥大,同时减少了心肌细胞的截面积。这些数据表明,SalB/Rg1对微球诱导的PE具有保护作用,在未来的PE治疗中具有很高的潜力。
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引用次数: 0
Histological Changes in the Kidneys and Heart in Experimental Acanthamoebiasis in Immunocompetent and Immunosuppressed Hosts 免疫活性和免疫抑制宿主实验性棘阿米巴病肾脏和心脏的组织学变化
IF 0.7 4区 生物学 Q4 BIOLOGY Pub Date : 2021-12-23 DOI: 10.3409/fb_69-4.18
K. Kot, D. Kosik-Bogacka, Łanocha-Arendarczyk, M. Ptak, P. Roszkowska, A. Kram
The course of Acanthamoeba spp. infection depends on the age and immune status of the host, and the virulence of the Acanthamoeba spp. strain. Some strains of free-living amoebae exhibit organ specificity, during the course of infection, while others may cause changes in many organs or completely lose pathogenicity. The aim of the current study was to investigate the pathological properties of Acanthamoeba spp. isolated from a patient with acute myeloid leukemia and atypical pneumonia (AM22). Moreover, the objective was to investigate the histopathological changes in the kidneys and heart of immunocompetent and immunosuppressed mice infected with Acanthamoeba spp. Amoebae were re-isolated from both the kidneys and hearts of the inoculated mice, although no cysts or trophozoites of the amoebae were detected in microscopic slides of the fragments of these organs. Acanthamoeba spp. induced changes in the kidney and heart weight of infected mice. In immunocompetent and immunosuppressed Acanthamoeba spp. infected mice, we found some histopathological changes, including areas with less acidic cytoplasm and a relaxation of muscle fibers. In further studies, it is important to analyze changes in gene and protein expressions in the heart and kidneys of hosts with disseminated acanthamoebiasis to better understand the course of infection in these organs, because the results of histological analysis varied depending on the immune status and duration of infection.
棘阿米巴感染的过程取决于宿主的年龄和免疫状态,以及棘阿米巴菌株的毒力。一些自由生活的变形虫菌株在感染过程中表现出器官特异性,而另一些菌株可能会导致许多器官发生变化或完全丧失致病性。本研究的目的是研究从一名急性髓系白血病和非典型肺炎(AM22)患者身上分离的棘阿米巴属的病理特性。此外,目的是研究感染棘阿米巴属的免疫活性和免疫抑制小鼠的肾脏和心脏的组织病理学变化。尽管在这些器官碎片的显微镜载玻片中没有检测到变形虫的囊肿或滋养体,但从接种疫苗的小鼠的肾和心脏中重新分离出变形虫。棘阿米巴引起感染小鼠肾脏和心脏重量的变化。在免疫活性和免疫抑制的棘阿米巴属感染小鼠中,我们发现了一些组织病理学变化,包括细胞质酸性较低的区域和肌肉纤维松弛。在进一步的研究中,重要的是分析播散性棘阿米巴病宿主心脏和肾脏中基因和蛋白质表达的变化,以更好地了解这些器官的感染过程,因为组织学分析的结果因免疫状态和感染持续时间而异。
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引用次数: 4
Development of Fannia pusio (Diptera: Fanniidae) Under Controlled Temperature Conditions and its Enforcement in the Estimate of the Post-mortem Interval (PMI) 控制温度条件下pusio Fannia(Diptera:Fanniidae)的发育及其在估计死后间隔(PMI)中的应用
IF 0.7 4区 生物学 Q4 BIOLOGY Pub Date : 2021-12-23 DOI: 10.3409/fb_69-4.19
Yolanda Bravo-Pena, J. Galián, E. Romera
Fannia pusio (Wiedemann, 1830) is a species belonging to the family Fanniidae, which is of great forensic, sanitary, and veterinary interest. The behavioral peculiarities of this species, depending on the temperature at which it is found, may provide additional information for future research. The application of entomology in the forensic field has focused especially on the early colonizing taxa of corpses that are in the initial stage of decomposition. However, species occurring at more advanced stages can contribute to further knowledge, as is the case with F. pusio. In addition, the species has the ability to colonize buried corpses that are inaccessible to larger dipterans. On the other hand, the sanitary and veterinary interest of this species is due to the performance of females as phoretic hosts of Dermatobia hominis eggs that cause myiasis in both animals and humans. In the current study, the behavior of F. pusio was observed at a temperature range of 5°C to 40°C. We found that its viability range is limited between 15°C and 35°C; above and below these temperatures, adults survive but oviposition does not take place. Data collected by statistical analysis were subsequently applied to calculate the post-mortem interval (PMI) using isomorphen and isomegalen diagrams. The results show a directly proportional relationship between growth rate and temperature increase. However, a slowdown in the growth of individuals was observed at extreme temperatures (5°C and 35°C). The results shown in this manuscript, together with the existing bibliography of other species, help to broaden the knowledge of F. pusio, which has not been studied in such depth until now.
Fannia pusio (Wiedemann, 1830)是Fanniidae科的一种,具有重要的法医、卫生和兽医意义。这个物种的行为特点取决于它被发现时的温度,这可能为未来的研究提供额外的信息。昆虫学在法医领域的应用主要集中在处于分解初期的尸体的早期殖民分类群上。然而,发生在更高级阶段的物种可以为进一步的知识做出贡献,就像假单胞菌一样。此外,这个物种有能力在大型双翅目动物无法到达的掩埋尸体上定居。另一方面,这一物种的卫生和兽医利益是由于雌性作为人类皮癣虫卵的传播宿主的表现,导致动物和人类的蝇蛆病。在本研究中,观察了F. posio在5°C至40°C温度范围内的行为。我们发现其生存能力范围限制在15 ~ 35℃之间;高于或低于这个温度,成虫都能存活,但不能产卵。通过统计分析收集的数据随后应用于使用同构图和等ω图计算死后间隔(PMI)。结果表明,生长速率与温度升高成正比关系。然而,在极端温度(5°C和35°C)下,观察到个体的生长放缓。本文所显示的结果,与已有的其他物种的参考书目一起,有助于拓宽对F. pusio的认识,迄今为止还没有对其进行过如此深入的研究。
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引用次数: 1
KRAKOW AND ITS RIVERS 克拉科夫和它的河流
IF 0.7 4区 生物学 Q4 BIOLOGY Pub Date : 2021-10-05 DOI: 10.2307/j.ctv201xjkz.5
Andrzej Chwalba
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引用次数: 0
PLANTS IN THE LIVES OF MEDIEVAL CRACOVIANS 中世纪恐龙生活中的植物
IF 0.7 4区 生物学 Q4 BIOLOGY Pub Date : 2021-10-05 DOI: 10.2307/j.ctv201xjkz.6
A. Mueller-Bieniek
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引用次数: 1
THE POWER OF MYTH: 神话的力量:
IF 0.7 4区 生物学 Q4 BIOLOGY Pub Date : 2021-10-05 DOI: 10.2307/j.ctv201xjkz.11
Małgorzata Praczyk
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引用次数: 0
A CITY IS NOT AN ISLAND: 一座城市不是一座孤岛;
IF 0.7 4区 生物学 Q4 BIOLOGY Pub Date : 2021-10-05 DOI: 10.2307/j.ctv201xjkz.7
Piotr Miodunka
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引用次数: 1
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Folia Biologica-Krakow
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