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Expression and significance of GAS6 and AXL in C57BL/6J mice with aldosterone-induced renal injury cas6和AXL在醛固酮致肾损伤C57BL/6J小鼠中的表达及意义
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-10-04 DOI: 10.1016/j.genrep.2025.102354
Xin Zhang , Nanfang Li , Qing Zhu , Wen Jiang , Ting Wu , Mei Yang , Di Shen , Wenbo Yang , Mengru Wang , Jing Hong
The GAS6/AXL signalling pathway has been implicated in inflammation and tissue injury, but its role in aldosterone-induced renal damage remains unclear. This study investigated whether aldosterone regulates the expression of growth arrest-specific 6 (GAS6) and its receptor AXL in the kidney, and whether this regulation is dependent on mineralocorticoid receptor (MR) activation. Male C57BL/6J mice were treated with aldosterone, with or without the MR antagonists spironolactone or finerenone. Immunohistochemical analysis showed significantly increased expression of GAS6 and AXL in kidneys from aldosterone-treated mice compared with controls (P < 0.01). AXL expression was positively correlated with MR, interleukin-1β, and CCL2 levels (P < 0.05). Both spironolactone and finerenone treatment reduced the expression of GAS6 and AXL to near-control levels (P < 0.05). These findings suggest that aldosterone stimulates renal GAS6/AXL expression via MR activation and that this pathway may contribute to renal inflammation.
GAS6/AXL信号通路与炎症和组织损伤有关,但其在醛固酮诱导的肾损伤中的作用尚不清楚。本研究探讨醛固酮是否调控生长阻滞特异性6 (GAS6)及其受体AXL在肾脏中的表达,以及这种调控是否依赖于矿化皮质激素受体(MR)的激活。雄性C57BL/6J小鼠给予醛固酮治疗,同时给予或不给予MR拮抗剂螺内酯或芬尼酮。免疫组织化学分析显示,与对照组相比,醛固酮处理小鼠肾脏中GAS6和AXL的表达显著增加(P < 0.01)。AXL表达与MR、白细胞介素-1β、CCL2水平呈正相关(P < 0.05)。螺内酯和芬烯酮处理均使GAS6和AXL的表达降低至接近控制水平(P < 0.05)。这些发现表明醛固酮通过MR激活刺激肾脏GAS6/AXL的表达,这一途径可能导致肾脏炎症。
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引用次数: 0
Optimized delivery of dual-gRNA CRISPR/Cas9 via FolicPolySpermine nanoparticles for MHC class I elimination through B2M gene knockout 优化双grna CRISPR/Cas9通过FolicPolySpermine纳米颗粒通过敲除B2M基因消除MHC I类
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-10-03 DOI: 10.1016/j.genrep.2025.102350
Hossein Jafari Khamirani , Maryam Aghasipour , Somayeh Khoddam , Amirmasoud Shiri , Hossein Heli , Maryam Ranjbar , Mahsa Jafari Khamirani , Sina Zoghi , Mehdi Dianatpour , Seyed Alireza Dastgheib
MHC class I molecules are expressed on the surface of all nucleated cells and play a significant role in graft rejection. B2m, the non-polymorphic constituent of the MHC class I molecule, is crucial to the structural integrity of the MHC class I. Targeting B2m using gene editing technologies to generate cells with minimal or no surface MHC class I expression is a promising strategy for addressing graft rejection. Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) technology is among the most effective approaches to editing genes, in vitro and in vivo, in a wide range of cell lines and species. However, delivery methods to transfer the CRISPR/Cas9 system to the cells can bring up challenges. In this study, we have deployed FolicPolySpermine nanoparticles based on spermine, polyethylene glycol, and folic acid for the transfection of two gRNAs targeting B2m and Cas9 into the HEK293T cell line. These nanoparticles were effectively transferred to the HEK293T cells, and we validated the expression and functionality of the CRISPR/Cas9 system within the cells. Moreover, we compared the efficiency of lipofectamine 2000 and FolicPolySpermine as delivery systems. FolicPolySpermine nanoparticle, as a biocompatible, safe, and efficient strategy, is useful in the transfection of CRISPR plasmids with high efficacy and precision into the target cells. Additionally, our study demonstrated that the use of dual gRNAs is a suitable approach for directly targeting and inducing predicted deletions at specific loci, which can be utilized for gene knockout purposes. All in all, our findings highlight the potential of FolicPolySpermine as a promising gene delivery method for the CRISPR/Cas9 system.
MHC I类分子在所有有核细胞表面表达,在移植物排斥反应中起重要作用。B2m是MHC I类分子的非多态性成分,对MHC I类的结构完整性至关重要。利用基因编辑技术靶向B2m,生成表面MHC I类表达很少或没有表达的细胞,是解决移植物排斥反应的一种很有前景的策略。集群规则间隔短回文重复序列(CRISPR)技术是最有效的基因编辑方法之一,在体外和体内,在广泛的细胞系和物种中。然而,将CRISPR/Cas9系统转移到细胞中的递送方法可能会带来挑战。在这项研究中,我们部署了基于精胺、聚乙二醇和叶酸的FolicPolySpermine纳米颗粒,将靶向B2m和Cas9的两种grna转染到HEK293T细胞系中。这些纳米颗粒被有效地转移到HEK293T细胞中,我们验证了细胞内CRISPR/Cas9系统的表达和功能。此外,我们比较了lipofectamine 2000和FolicPolySpermine作为递送系统的效率。FolicPolySpermine纳米颗粒作为一种具有生物相容性、安全、高效的策略,在将CRISPR质粒转染到靶细胞中具有较高的效率和精度。此外,我们的研究表明,使用双grna是直接靶向和诱导特定位点预测缺失的合适方法,可用于基因敲除目的。总而言之,我们的发现突出了FolicPolySpermine作为CRISPR/Cas9系统的一种有前途的基因传递方法的潜力。
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引用次数: 0
Targeted inhibition of 7SK long non-coding RNA using Rn7SK-siRNA promotes gastric cancer cell proliferation and migration 利用Rn7SK-siRNA靶向抑制7SK长链非编码RNA,促进胃癌细胞增殖和迁移
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-10-03 DOI: 10.1016/j.genrep.2025.102349
Maryam Valizadeh-Otagsara , Hassan Dariushnejad , Vahideh Tarhriz , Roya Fattahi , Mozhgan Abasi

Background

With a length of 331 nucleotides, Rn7SK small nuclear RNA (snRNA) is an extremely plentiful noncoding RNA (ncRNA). Multiple lines of evidence propose that Rn7SK snRNA controls RNA polymerase II transcription by regulating the positive transcription elongation factor b (P-TEFb) function. Previous researches has shown that Rn7SK is downregulated in some tumor cells. This investigation aimed to analyze the impact of the downregulation of Rn7SK expression via transfection of Rn7SK-siRNA on proliferation, migration, and spheroid formation in human gastric adenocarcinoma cells AGS. Also, the expression level of genes engaged in cancer cell proliferation and apoptosis was assessed.

Results

The obtained findings demonstrated that transfection of AGS cells with Rn7SK-siRNA increased their migration, proliferation, and spheroid formation. Besides, qPCR analysis revealed higher and lower expression levels of genes involved in proliferation and apoptosis, respectively, in Rn7SK-siRNA-transfected AGS cells.

Conclusions

Our result suggests that Rn7SK has a crucial role in the progression of human gastric cancer AGS cells, and applying effective strategies to overexpress Rn7SK might help with the efficient treatment of gastric cancer.
Rn7SK小核RNA (snRNA)是一种丰富的非编码RNA (ncRNA),长度为331个核苷酸。多种证据表明,Rn7SK snRNA通过调节正转录延伸因子b (P-TEFb)功能来控制RNA聚合酶II的转录。先前的研究表明,Rn7SK在一些肿瘤细胞中下调。本研究旨在分析转染Rn7SK- sirna下调Rn7SK表达对人胃腺癌细胞AGS增殖、迁移和球体形成的影响。同时,我们还检测了参与癌细胞增殖和凋亡的基因的表达水平。结果结果表明,转染Rn7SK-siRNA后,AGS细胞的迁移、增殖和球形形成均增加。此外,qPCR分析显示,rn7sk - sirna转染的AGS细胞中,增殖和凋亡相关基因的表达水平分别较高和较低。结论Rn7SK在人胃癌AGS细胞的发展过程中起着至关重要的作用,采用有效的策略过表达Rn7SK可能有助于胃癌的有效治疗。
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引用次数: 0
Investigating polymorphism of Plasmodium falciparum msp1 and msp2 vaccine candidates reveals a high proportion of genetically diverse monoclonal infections in Cameroon 对恶性疟原虫msp1和msp2候选疫苗多态性的调查显示,喀麦隆遗传多样性单克隆感染的比例很高
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-10-01 DOI: 10.1016/j.genrep.2025.102348
Loick P. Kojom Foko , Joseph Hawadak , Vineeta Singh

Background

Antimalarial immunity is greatly modulated by the genetic structure of Plasmodium populations, which is an important hurdle to successful vaccine development.

Methods

Dried blood spots were collected from hospital patients living in four towns (Douala, Maroua, Mayo-Oulo, and Pette). Genomic DNA was extracted and used to genotype the merozoite surface protein 1 and 2 genes (msp1 and msp2).

Results

K1 (76.3 %) and IC/3D7 (83.3 %) were the most frequently found msp1 and msp2 allelic types, respectively. The total number of genotypes was 24 msp1 (11 K1; 8 Mad20; 5 RO33) and 43 msp2 (29 IC/3D7; 14 FC27). Monoclonal infections were predominant: 68.4 % for msp1 [K1 (46.1 %), Mad20 (18.4 %), and RO33 (3.9 %)], and 67.1 % for msp2 [IC/3D7 (50.0 %), and FC27 (17.1 %)]. Individuals living in Pette had fewer chances to get msp1-related monoclonal infections than those living in Douala (OR = 0.22, p = 0.01). Regarding msp2, IC/3D7 and FC27 genotypes found in MI accounted for 58.6 % and 100 % of total IC/3D7 and FC27 genotypes found. No statistically significant association was found between MOI, age, parasite density, and geographical area.

Conclusion

This study reveals a high genetic diversity of P. falciparum infections, with a predominance of monoclonal infections.
疟疾免疫在很大程度上受疟原虫种群遗传结构的调节,这是成功研制疫苗的一个重要障碍。方法采集4个镇(杜阿拉、马鲁阿、梅奥奥洛和佩特)医院患者的干血斑。提取基因组DNA,对裂殖子表面蛋白1和2基因(msp1和msp2)进行基因分型。结果msp1和msp2等位基因型分别为sk1(76.3%)和IC/3D7(83.3%)。基因型总数为24个msp1(11个K1; 8个Mad20; 5个RO33)和43个msp2(29个IC/3D7; 14个FC27)。msp1 [K1(46.1%)、Mad20(18.4%)、RO33(3.9%)]单克隆感染占68.4%,msp2 [IC/3D7(50.0%)、FC27(17.1%)]单克隆感染占67.1%。居住在Pette的个体获得msp1相关单克隆感染的机会低于居住在Douala的个体(OR = 0.22, p = 0.01)。msp2在MI中发现的IC/3D7和FC27基因型分别占IC/3D7和FC27基因型总数的58.6%和100%。MOI与年龄、寄生虫密度和地理区域无统计学意义相关。结论恶性疟原虫感染具有高度的遗传多样性,且以单克隆感染为主。
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引用次数: 0
Genomic architecture of skeletal malocclusions: Implications for precision orthodontics - Narrative review 骨骼错咬合的基因组结构:对精确正畸的影响-叙述性回顾
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-09-30 DOI: 10.1016/j.genrep.2025.102347
Katarzyna Chojnacka , Marcin Mikulewicz

Background

Genetic variants, particularly single-nucleotide polymorphisms (SNPs), have been linked to craniofacial growth, dentoalveolar development, and skeletal remodeling through core pathways that govern morphogenesis (e.g., FGF/FGFR, WNT/β-catenin, TGF-β/BMP, and the GH/IGF axis). Interethnic differences in allele frequencies and effect sizes indicate ancestry-specific architecture. Multiple candidate genes and loci related to skeletal Class II/III malocclusion have been reported across genome-wide association studies (GWAS) and candidate-gene analyses, including signals at GHR/IGF1, FGFR2, RUNX2, WNT3A, MSX1, and GLI2.

Aim

To collate and critically appraise current genetic evidence on skeletal malocclusions and to identify a functionally supported subset of SNPs relevant to precision orthodontic care. Given cohort heterogeneity and ancestry-specific effects, loci labeled as higher-confidence were prioritized when replication (where available), biological plausibility, and clinical association converged. Here, a functional SNP denotes a variant with experimental or expression evidence for a biological effect on gene regulation, protein function, or development.

Methods

Narrative review with a structured search of PubMed/Scopus (last search May 5, 2025). Two complementary approaches were applied: (i) an annotation table linking genotype, phenotype, putative mechanism, zygosity, and references; and (ii) an allele-phenotype matrix stratified by ancestry (Asian, European, admixed).

Results

Of approximately 95 reported SNPs screened, 38 met the predefined criteria (including replication where available, functional relevance to craniofacial development, and clinical association with prognathism and/or maxillary deficiency). Replication remains limited for several loci. The resulting set provides a pragmatic basis for risk stratification, not deterministic prediction. From this 38-SNP higher-confidence set, we selected an illustrative 11-SNP subset to prototype PRS-Ortho v1.

Conclusions

This narrative review synthesizes evidence from over 70 peer-reviewed studies and presents 38 functionally supported SNPs currently most relevant to craniofacial growth. These data support the personalization of diagnosis, treatment planning, and prognosis in precision orthodontics, while underscoring the need for multi-ethnic replication and prospective evaluation before routine clinical testing. An 11-SNP subset (PRS-Ortho v1) is provided as a prototype for illustrative, unweighted scoring.
遗传变异,特别是单核苷酸多态性(snp),通过控制形态发生的核心途径(如FGF/FGFR、WNT/β-catenin、TGF-β/BMP和GH/IGF轴)与颅面生长、牙槽发育和骨骼重塑有关。等位基因频率和效应大小的种族间差异表明了特定于祖先的结构。在全基因组关联研究(GWAS)和候选基因分析中,已经报道了与骨骼II/III类错牙合相关的多个候选基因和位点,包括GHR/IGF1、FGFR2、RUNX2、WNT3A、MSX1和GLI2的信号。目的整理和批判性评估目前骨骼错颌的遗传证据,并确定与精确正畸护理相关的功能支持的snp子集。考虑到队列异质性和祖先特异性效应,当复制(如有)、生物学合理性和临床相关性趋同时,标记为高置信度的位点被优先考虑。在这里,功能性SNP是指具有实验或表达证据的变异,可以对基因调控、蛋白质功能或发育产生生物学效应。方法综述与PubMed/Scopus的结构化检索(上次检索于2025年5月5日)。采用了两种互补的方法:(i)将基因型、表型、推测机制、合子性和参考文献链接在一起的注释表;(ii)按祖先(亚洲人、欧洲人、混血儿)分层的等位基因表型基质。结果在筛选的大约95个报道的snp中,38个符合预定义的标准(包括可用的复制,与颅面发育的功能相关性,以及与前突和/或上颌缺陷的临床相关性)。几个基因座的复制仍然有限。结果集为风险分层提供了实用基础,而不是确定性预测。从这38个snp的高置信度集中,我们选择了一个说明性的11个snp子集来原型PRS-Ortho v1。结论:本文综合了70多项同行评议研究的证据,提出了38个功能支持的snp,目前与颅面生长最相关。这些数据支持了精确正畸的个性化诊断、治疗计划和预后,同时强调了在常规临床试验之前进行多民族复制和前瞻性评估的必要性。提供了一个11-SNP子集(PRS-Ortho v1)作为说说性非加权评分的原型。
{"title":"Genomic architecture of skeletal malocclusions: Implications for precision orthodontics - Narrative review","authors":"Katarzyna Chojnacka ,&nbsp;Marcin Mikulewicz","doi":"10.1016/j.genrep.2025.102347","DOIUrl":"10.1016/j.genrep.2025.102347","url":null,"abstract":"<div><h3>Background</h3><div>Genetic variants, particularly single-nucleotide polymorphisms (SNPs), have been linked to craniofacial growth, dentoalveolar development, and skeletal remodeling through core pathways that govern morphogenesis (e.g., FGF/FGFR, WNT/β-catenin, TGF-β/BMP, and the GH/IGF axis). Interethnic differences in allele frequencies and effect sizes indicate ancestry-specific architecture. Multiple candidate genes and loci related to skeletal Class II/III malocclusion have been reported across genome-wide association studies (GWAS) and candidate-gene analyses, including signals at GHR/IGF1, FGFR2, RUNX2, WNT3A, MSX1, and GLI2.</div></div><div><h3>Aim</h3><div>To collate and critically appraise current genetic evidence on skeletal malocclusions and to identify a functionally supported subset of SNPs relevant to precision orthodontic care. Given cohort heterogeneity and ancestry-specific effects, loci labeled as higher-confidence were prioritized when replication (where available), biological plausibility, and clinical association converged. Here, a functional SNP denotes a variant with experimental or expression evidence for a biological effect on gene regulation, protein function, or development.</div></div><div><h3>Methods</h3><div>Narrative review with a structured search of PubMed/Scopus (last search May 5, 2025). Two complementary approaches were applied: (i) an annotation table linking genotype, phenotype, putative mechanism, zygosity, and references; and (ii) an allele-phenotype matrix stratified by ancestry (Asian, European, admixed).</div></div><div><h3>Results</h3><div>Of approximately 95 reported SNPs screened, 38 met the predefined criteria (including replication where available, functional relevance to craniofacial development, and clinical association with prognathism and/or maxillary deficiency). Replication remains limited for several loci. The resulting set provides a pragmatic basis for risk stratification, not deterministic prediction. From this 38-SNP higher-confidence set, we selected an illustrative 11-SNP subset to prototype PRS-Ortho v1.</div></div><div><h3>Conclusions</h3><div>This narrative review synthesizes evidence from over 70 peer-reviewed studies and presents 38 functionally supported SNPs currently most relevant to craniofacial growth. These data support the personalization of diagnosis, treatment planning, and prognosis in precision orthodontics, while underscoring the need for multi-ethnic replication and prospective evaluation before routine clinical testing. An 11-SNP subset (PRS-Ortho v1) is provided as a prototype for illustrative, unweighted scoring.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"41 ","pages":"Article 102347"},"PeriodicalIF":0.9,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exome sequencing reveals a novel de novo ARHGAP31 frameshift variant in a neurodevelopmental disorder: Structural and functional insights into RhoGAP domain loss 外显子组测序揭示了神经发育障碍中新的ARHGAP31移码变体:RhoGAP结构域丢失的结构和功能见解
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-09-29 DOI: 10.1016/j.genrep.2025.102345
Jalal Gharesouran , Mohammad Reza Asadi , Samira Behroozi , Maryam Rezazadeh , Soudeh Ghafouri-Fard
ARHGAP31 is a GTPase activating protein that inactivates Rac1 and Cdc42 by promoting their conversion from the GTP to GDP bound state. Pathologic variants in ARHGAP31 are primarily associated with Adams-Oliver syndrome (AOS), a congenital disorder characterized by aplasia cutis congenita (ACC) and terminal transverse limb defects (TTLDs), attributed to disrupted Rho GTPase signaling. In this study, exome sequencing and bioinformatic analysis were employed to investigate a 6-year-old male presenting with craniofacial anomalies (high palate, dental malalignment), developmental delay (motor and speech), and gastrointestinal dysmotility (feeding difficulties, constipation) notably without ACC or TTLDs. Trio exome sequencing revealed a heterozygous de novo frameshift variant in ARHGAP31 (NM_020754.4:c.732del, p.(Met245Ter)), absent from population databases (gnomAD, dbSNP) and both parental genomes. In silico predictions (MutationTaster, SWISS-MODEL) suggested a pathogenic effect (probability: 0.99), with nonsense-mediated decay (NMD) and truncation of the RhoGAP domain critical for cytoskeletal regulation. The variant's proximal truncation site likely disrupts autoinhibitory regulation, enhancing RhoGAP activity and impairing Cdc42/Rac1 signaling. Despite parental consanguinity, the de novo variant highlights the diagnostic value of trio sequencing in consanguineous families. Moreover, until now only gain-of-function mutation of ARHGAP31 was found to be associated with AOS, while this article reports a brand-new loss-of-function mutation. Overall, these findings support the existence of a novel ARHGAP31-related neurodevelopmental disorder distinct from AOS, expanding the allelic and phenotypic spectrum associated with this gene.
ARHGAP31是一种GTPase激活蛋白,通过促进Rac1和Cdc42从GTP转化为GDP结合状态来灭活它们。ARHGAP31的病理变异主要与亚当斯-奥利弗综合征(AOS)有关,这是一种先天性疾病,其特征是先天性皮肤发育不全(ACC)和终末横肢缺陷(ttld),归因于Rho GTPase信号传导中断。在这项研究中,外显子组测序和生物信息学分析研究了一名6岁的男性,其表现为颅面异常(高腭,牙齿错位),发育迟缓(运动和语言)和胃肠运动障碍(进食困难,便秘),特别是没有ACC或ttld。三外显子组测序结果显示,ARHGAP31 (NM_020754.4:c)中存在一个杂合的从头移码变异。732del, p.(Met245Ter))),在种群数据库(gnomAD, dbSNP)和亲本基因组中缺失。计算机预测(MutationTaster, SWISS-MODEL)显示了致病作用(概率:0.99),无义介导的衰变(NMD)和RhoGAP结构域的截断对细胞骨架调节至关重要。该变体的近端截断位点可能会破坏自身抑制调节,增强RhoGAP活性并损害Cdc42/Rac1信号。尽管父母有血缘关系,但新生变异突出了三组测序在近亲家庭中的诊断价值。此外,迄今为止只发现了ARHGAP31的功能获得突变与AOS相关,而本文报道了一个全新的功能丧失突变。总的来说,这些发现支持存在一种不同于AOS的新型arhgap31相关神经发育障碍,扩大了与该基因相关的等位基因和表型谱。
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引用次数: 0
Prevalence and molecular characterization of carbapenem-resistant Pseudomonas aeruginosa and emergence of blaNDM gene 耐碳青霉烯铜绿假单胞菌的流行、分子特征及blaNDM基因的出现
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-09-26 DOI: 10.1016/j.genrep.2025.102346
Samira Ahmadi Asli , Shabnam Golbouy Daghdari , Farzin Asghari-Sana , Mohammad Sarkheili
Pseudomonas aeruginosa is a major cause of hospital-acquired infections, with increasing multidrug resistance. This study aimed to evaluate antimicrobial resistance patterns, assess phenotypic metallo-β-lactamase (MBL) detection, and investigate key resistance genes (blaNDM, blaIMP, blaVIM, and blaOXA-10) in clinical isolates. A total of 472 clinical samples were collected from three major hospitals in Urmia, Iran, resulting in the identification of 81 confirmed P. aeruginosa isolates. Antimicrobial susceptibility was tested using the disk diffusion method, and MBL production was assessed through four phenotypic tests (CDT-IPM, DDST-IPM, CDT-CAZ, and DDST-CAZ). Resistance genes were confirmed using both uniplex and multiplex PCR. The highest resistance was observed against cefoxitin (93.8 %) and meropenem (60.0 %), while colistin and amikacin remained the most effective agents. Among the phenotypic tests, DDST-IPM demonstrated the highest sensitivity (100 %), but showed limited specificity (57 %). CDT-IPM showed comparable specificity. In contrast, CDT-CAZ and DDST-CAZ exhibited lower specificity and variable sensitivity. PCR results showed that blaOXA-10 was present in 85.7 % of carbapenem-resistant isolates, followed by blaVIM (73.5 %), blaIMP (53.0 %), and blaNDM (38.8 %). The detection of colistin-resistant strains and the co-occurrence of multiple MBL genes raise concerns about treatment limitations and highlight the need for better diagnostics and resistance monitoring.
铜绿假单胞菌是医院获得性感染的主要原因,具有越来越多的耐多药性。本研究旨在评估临床分离菌株的耐药模式,评估表型金属β-内酰胺酶(MBL)检测,并研究关键耐药基因(blaNDM、blaIMP、blaVIM和blaOXA-10)。从伊朗乌尔米娅的三家大医院共收集了472份临床样本,鉴定出81株铜绿假单胞菌确诊菌株。采用纸片扩散法检测抗菌药物敏感性,通过CDT-IPM、DDST-IPM、CDT-CAZ和DDST-CAZ四种表型试验评估MBL的产生。采用单链和多重PCR鉴定耐药基因。头孢西丁(93.8%)和美罗培南(60.0%)的耐药率最高,粘菌素和阿米卡星的耐药率最高。在表型试验中,DDST-IPM表现出最高的敏感性(100%),但特异性有限(57%)。CDT-IPM表现出可比的特异性。相比之下,CDT-CAZ和DDST-CAZ表现出较低的特异性和可变敏感性。PCR结果显示,85.7%的碳青霉烯类耐药菌株中存在blaOXA-10,其次是blaVIM(73.5%)、blaIMP(53.0%)和blaNDM(38.8%)。对粘菌素耐药菌株的检测和多个MBL基因的共存引起了对治疗局限性的关注,并突出了更好的诊断和耐药性监测的必要性。
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引用次数: 0
A hypothetical link between FAHD1 and mitochondrial resilience? FAHD1和线粒体弹性之间的假设联系?
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-09-24 DOI: 10.1016/j.genrep.2025.102343
Konstantin A. Wilhelmy , Yana Rytchenko , Alexander K.H. Weiss
The mitochondrial enzyme FAHD1 may influence acetyl-CoA metabolism under certain conditions, although physiological relevance remains to be determined. This study explores the potential association between a naturally occurring FAHD1 variant with altered catalytic properties, that is statistically expressed in some long-lived species. Through comparative gene expression and metabolic pathway analyses in kidney, liver, and brain tissues, we examine whether this FAHD1 variant is associated with mitochondrial gene expression patterns indicative of metabolic adaptation. However, our conclusions remain exploratory and hypothesis-generating rather than definitive. The variant's altered catalytic properties might affect acetyl-CoA-related pathways, potentially influencing mitochondrial energy balance and biosynthesis, though in vivo physiological consequences remain unconfirmed. Given the exclusively transcriptomic nature of the data, no causal inferences can be drawn; the findings are exploratory and intended to generate hypotheses for future validation.
线粒体酶FAHD1可能在某些条件下影响乙酰辅酶a代谢,尽管生理相关性仍有待确定。本研究探讨了自然发生的FAHD1变异与催化特性改变之间的潜在关联,这在一些长寿物种中有统计学表达。通过比较肾脏、肝脏和脑组织的基因表达和代谢途径分析,我们研究了FAHD1变异是否与指示代谢适应的线粒体基因表达模式相关。然而,我们的结论仍然是探索性的和假设生成的,而不是决定性的。该变体催化特性的改变可能会影响乙酰辅酶a相关途径,潜在地影响线粒体能量平衡和生物合成,尽管体内生理后果尚未得到证实。考虑到数据的转录组学性质,无法得出因果推论;这些发现是探索性的,旨在为未来的验证产生假设。
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引用次数: 0
Association of CDH1 gene variant C > A (rs16260) with expression and treatment outcomes in cervical cancer patients receiving chemoradiotherapy CDH1基因变异C > A (rs16260)与宫颈癌放化疗患者的表达和治疗结果的关系
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-09-19 DOI: 10.1016/j.genrep.2025.102344
Shireen Masood , Atar Singh Kushwah , Kirti Srivastava , Monisha Banerjee

Background

The CDH1 gene promoter variant C > A (rs16260) is associated with downregulation of E-cadherin, which compromises epithelial integrity and has been linked to poor prognosis in various cancers. This study investigates the association of the CDH1 C > A variant with gene expression and its potential as a prognostic biomarker for cervical cancer in an Indian population.

Methods

This case-control study involved 107 cervical cancer patients and 96 age-matched healthy controls. Genotyping of the CDH1 C > A (rs16260) variant was performed using PCR-RFLP, and gene expression was analyzed through qPCR. Kaplan-Meier and Cox regression analyses were used to correlate genotypes and gene expression with treatment response and survival outcomes. Statistical analysis was conducted using QUANTO (v.1.2), GraphPad Prism (v. 10), SPSS (v. 25).

Results

The CA and CA + AA genotypes of the CDH1 variant were significantly associated with cervical cancer risk (P = 0.011 and P = 0.004, respectively). CDH1 gene expression was significantly downregulated in cervical cancer patients compared to controls (P = 0.023). While the CA genotype was protective against recurrence and treatment toxicity (P < 0.001 and P = 0.050, respectively), the CC genotype was linked to increased toxicity and recurrence. CA genotype shows a trend toward better overall survival (median 27 vs. 19 months; HR < 1), though not statistically significant (P = 0.079).

Conclusion

The CDH1 C > A (rs16260) variant may be a prognostic biomarker to predict toxicity and recurrence of cervical cancer, with implications for personalized treatment strategies. However, further studies in larger, more diverse cohorts are necessary to validate these findings.
CDH1基因启动子变异C >; A (rs16260)与e -钙粘蛋白下调有关,e -钙粘蛋白会损害上皮完整性,并与各种癌症的不良预后有关。本研究探讨了印度人群中cdh1c >; A变异与基因表达的关系及其作为宫颈癌预后生物标志物的潜力。方法对107例宫颈癌患者和96例年龄匹配的健康对照者进行病例对照研究。采用PCR-RFLP对CDH1 C >; A (rs16260)变异进行基因分型,并通过qPCR分析基因表达。Kaplan-Meier和Cox回归分析将基因型和基因表达与治疗反应和生存结果相关联。采用QUANTO (v.1.2)、GraphPad Prism (v. 10)、SPSS (v. 25)进行统计分析。结果CDH1变异的CA和CA + AA基因型与宫颈癌发病风险有显著相关性(P = 0.011和P = 0.004)。宫颈癌患者与对照组相比,CDH1基因表达明显下调(P = 0.023)。虽然CA基因型对复发和治疗毒性具有保护作用(P <; 0.001和P = 0.050分别),但CC基因型与毒性和复发增加有关。CA基因型患者的总生存期有提高的趋势(中位27个月vs. 19个月;HR < 1),但无统计学意义(P = 0.079)。结论cdh1c >; A (rs16260)变异可能是预测宫颈癌毒性和复发的预后生物标志物,对个性化治疗策略具有指导意义。然而,需要在更大、更多样化的人群中进行进一步的研究来验证这些发现。
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引用次数: 0
Phylogenetic structure and paternal migration history of Sichuan Bouyei people revealed by Y-chromosomal STRs 四川布依族y染色体STRs揭示的系统发育结构与父系迁移史
IF 0.9 Q4 GENETICS & HEREDITY Pub Date : 2025-09-18 DOI: 10.1016/j.genrep.2025.102342
Guang-Yao Fan , En-Na Wang , Jia-Xin Han , Xin-Ying Yu , An-Ying Zheng , Ying Zhu
This study investigates the phylogenetic structure and demographic history of the Sichuan Bouyei people. Genetic profiles of 37 Y-chromosomal short tandem repeat (STR) loci among 425 Bouyei males from eight regions in Sichuan Province were analyzed. Along with published datasets, multidimensional scaling plots, principal component analysis, and phylogenetic reconstruction were conducted on both an Asia-wide and national scale. Genetic stratification in the studied populations was influenced by linguistic and geographic distribution patterns. Significant genetic differentiation was observed between two predominant Bouyei groups from the counties of Ningnan and Muli. Machine learning-based category prediction was performed among contemporary Bouyei and non-Bouyei individuals using the Linear Discriminant Analysis (LDA) method. The results of the LDA indicated a deep fusion between Tai-Kadai-speaking and Hmong-Mien-speaking populations. The timing of population differentiations was estimated using BATWING. Furthermore, the migration rate between the Sichuan Bouyei and other populations was inferred using coalescence theory in the Migrate-n program. The migration models and directions were evaluated, revealing gene flow of Bouyei people from the Sichuan Muli to Vietnam. The data presented here for the Sichuan Bouyei people will be useful in establishing a more comprehensive Y-STR database, and enrich our understanding of the patrilineal history of Tai-Kadai-speaking peoples in China.
研究了四川布依族的系统发育结构和人口历史。对四川8个地区425名布依族男性的37个y染色体短串联重复序列(STR)位点进行了遗传分析。利用已发表的数据集,在亚洲和全国范围内进行了多维标度图、主成分分析和系统发育重建。研究群体的遗传分层受语言和地理分布模式的影响。来自宁南县和木里县的布依族两个优势类群之间存在显著的遗传分化。使用线性判别分析(LDA)方法对当代布依族和非布依族个体进行基于机器学习的类别预测。LDA的结果表明,台加泰语和苗语人口之间存在深度融合。利用BATWING估计种群分化的时间。此外,利用迁移-n程序中的聚结理论推断四川布依族与其他种群之间的迁移速率。对布依族的迁移模式和迁移方向进行了评价,揭示了布依族从四川木里向越南的基因流动。本文所提供的四川布依族的数据将有助于建立一个更全面的Y-STR数据库,并丰富我们对中国台加泰族父系历史的认识。
{"title":"Phylogenetic structure and paternal migration history of Sichuan Bouyei people revealed by Y-chromosomal STRs","authors":"Guang-Yao Fan ,&nbsp;En-Na Wang ,&nbsp;Jia-Xin Han ,&nbsp;Xin-Ying Yu ,&nbsp;An-Ying Zheng ,&nbsp;Ying Zhu","doi":"10.1016/j.genrep.2025.102342","DOIUrl":"10.1016/j.genrep.2025.102342","url":null,"abstract":"<div><div>This study investigates the phylogenetic structure and demographic history of the Sichuan Bouyei people. Genetic profiles of 37 Y-chromosomal short tandem repeat (STR) loci among 425 Bouyei males from eight regions in Sichuan Province were analyzed. Along with published datasets, multidimensional scaling plots, principal component analysis, and phylogenetic reconstruction were conducted on both an Asia-wide and national scale. Genetic stratification in the studied populations was influenced by linguistic and geographic distribution patterns. Significant genetic differentiation was observed between two predominant Bouyei groups from the counties of Ningnan and Muli. Machine learning-based category prediction was performed among contemporary Bouyei and non-Bouyei individuals using the Linear Discriminant Analysis (LDA) method. The results of the LDA indicated a deep fusion between Tai-Kadai-speaking and Hmong-Mien-speaking populations. The timing of population differentiations was estimated using BATWING. Furthermore, the migration rate between the Sichuan Bouyei and other populations was inferred using coalescence theory in the Migrate-n program. The migration models and directions were evaluated, revealing gene flow of Bouyei people from the Sichuan Muli to Vietnam. The data presented here for the Sichuan Bouyei people will be useful in establishing a more comprehensive Y-STR database, and enrich our understanding of the patrilineal history of Tai-Kadai-speaking peoples in China.</div></div>","PeriodicalId":12673,"journal":{"name":"Gene Reports","volume":"41 ","pages":"Article 102342"},"PeriodicalIF":0.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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Gene Reports
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