🧬 biology

Development of cAMP signaling underlies tonotopic differentiation of Kv1.1 expression in the avian cochlear nucleus

本研究表明,禽类耳蜗核中 Kv1.1 表达的频率调谐分化是由钙离子依赖性 cAMP 信号转导的区域特异性成熟所驱动的,该信号转导在孵化期前后介导了高频神经元中 Kv1.1 的活动依赖性上调,以确保精确的听觉处理。

Hiroshi Kuba, Hesheng Chen, Ryota Adachi, Ryo Egawa, Ryota Fukaya, Yixuan Du, Tenyu Imaizumi2026-06-29
🧬 biology

Feasibility and Preliminary Effectiveness of a School-Based Speed- Related Fitness Program in Primary School Children: A Large Quasi-Experimental Study

这项大型准实验研究表明,将为期8周、对设备要求较低的速度、敏捷与快速反应(SAQ)训练项目嵌入常规体育教育中,能显著提高小学生50米冲刺表现,相比于常规教学,这证明了该方案作为一种在学校环境中提升速度相关体能的务实方法的有效性。

Junhui Zhu, Mingling Zhao, Ling Xu, Zhongming Song, Yan Bu2026-06-29
🧬 biology

Regulation of a symbiotic species network by a Megalomyrmex guest ant parasite: Establishment, maintenance, and threat of breakdown

这项研究揭示了社会寄生蚁 *Megalomyrmex symmetochus* 如何通过窃听用于定位巢穴和报警反应的化学信号来渗透并稳定其宿主的共生网络,同时利用其抗菌毒液来调节微生物群落。

Alissa R. Geisse, Blake S. Bringhurst, Aryel C. Goes, Ana R. Martinez, Sabrina Amador-Vargas, Lillian A. Brennan, Rachel (…)2026-06-29
🧬 biology

Extruded blue corn and tepary beans-based tortillas’ impact on obesity and gut microbiota in vivo

这项研究表明,在Wistar大鼠中,由挤压蓝玉米和提帕里豆制成的饼干能改善肠道微生物群多样性并降低总胆固醇,且不会加重血脂异常,为缓解肥胖相关的代谢问题提供了一种潜在的饮食策略。

Guadalupe M. Perez-Guerrero, Cuauhtémoc Reyes-Moreno, Nuria Elizabeth Rocha-Guzmán, Edith Oliva Cuevas-Rodriguez, Mariel (…)2026-06-29
🧬 biology

Identification of Acetylation-Related Gene Biomarkers for Gallbladder Carcinoma via Multi-dataset and Machine Learning, with Insights into Immune Microenvironment Modulation

本研究通过机器学习构建了一个高准确度的诊断模型,鉴定了七个与胆囊癌相关的乙酰化基因生物标志物,并揭示了它们与免疫细胞浸润的显著关联,特别强调了 NCOA1 与激活态自然杀伤细胞之间的联系。

Yecheng Wang, Dongbin Liu, Yaming Zheng, Kuo Liang, Minghao Sui, Xiang Gao2026-06-29
🧬 biology

Microvesicles derived from follicular fluid and seminal plasma modulate human sperm quality after vitrification: Functional and molecular parameters based Assessment

本研究表明,在人类精子玻璃化冷冻培养基中添加高剂量的原始卵泡液或精浆,或低剂量的其衍生的微囊泡,通过增强精子活力、膜完整性和抗氧化能力,同时降低氧化应激和凋亡相关基因的表达,能够显著减轻冷冻损伤。

Morteza Taravat, Mustafa Numan Bucak, Reza Asadpour, Zahra Karimi, Mohammad saber Maroufi, Hojat Ghasemnejad, Tohid Reza (…)2026-06-29