2024-07-12 01:22:33动物植物
卵细胞维护:长寿命蛋白质可能对生育能力至关重要

Female mammals—including humans—are born with all of their egg cells. Of a woman's one to two million egg cells, about 400 mature before menopause and can be fertilized. Some egg cells therefore survive for several decades—and need to remain functional o

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2024-07-12 01:07:48动物植物
活宿主的全基因组筛查揭示了寄生虫感染的新秘密

Apicomplexan parasites are a common cause of disease, infecting hundreds of millions of people each year. They are responsible for spreading malaria; cryptosporidiosis—a severe childhood diarrheal disease; and toxoplasmosis—a disease that endangers immune

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2024-07-12 00:53:32动物植物
伤寒细菌的多样性与较高的死亡率有关

Worldwide, 20% of the bacterial strains that cause typhoid fever have genetic variations in their external layer, called Vi capsule, that provide higher virulence, higher infectivity and high antibiotic resistance, Cornell researchers have discovered, pos

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2024-07-12 00:40:35动物植物
一项新的研究表明,古代大型袋鼠主要靠四条腿移动

A type of extinct kangaroo that lived during the Pleistocene around two and a half million to 10 thousand years ago, known as the "giant wallaby," was a poor hopper, a study by scientists at the University of Bristol has found.

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2024-07-12 00:29:20动物植物
病毒数据的“牺牲”为打开疾病发现管道扫清了道路

Tens of millions of still-unknown or misunderstood viruses can cause diseases—including new pandemics—and affect the health of valuable terrestrial and marine environments.

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2024-07-12 00:15:56动物植物
如何差异化提高我国耕地质量

Quality is the core characteristic of cultivated land and is crucial for ensuring sustainable resource utilization and national food security. To meet the increasing demand for food driven by rapid population growth and the continual optimization of dieta

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2024-07-12 00:05:13动物植物
jerboas适应双足跳跃和沙漠样栖息地的基因组见解

Jerboas are a lineage of small rodents displaying atypical mouse-like morphology with elongated strong hindlimbs and short forelimbs. A research team has recently sequenced and reported the chromosome-scale genome of the Mongolian five-toed jerboa (Orient

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2024-07-11 23:52:09动物植物
当有饮食选择时,海鸥仍然更喜欢海鲜

Seagull chicks raised on an "urban" diet still prefer seafood, new research shows. University of Exeter scientists studied herring gull chicks that had been rescued after falling off roofs in towns across Cornwall, UK.

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2024-07-11 23:40:28动物植物
海平面上升对猎户座等滨鸟构成危险

Research by James Cook University in Australia involving Radboud University scientists shows that rising sea levels will drastically reduce the number of shorebirds in Europe. The number of oystercatchers on three Waddeneilanden will decline an additional

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2024-07-11 23:29:31动物植物
世界上最大蝙蝠使用的节能技术揭晓

Researchers from Western Sydney University have led a pioneering new study, finding that flying-foxes, the largest of the bats, use torpor in the wild—a vital energy-saving state previously observed only among much smaller bat species.

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2024-07-11 23:17:36动物植物
TREK通道磷酸化机制具有治疗潜力

A team led by Prof. Dr. Han Sun from the Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) has elucidated an important mechanism in the function of TREK channels at an atomic level. The results, published in the journal Nature Communications,

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2024-07-11 23:04:06动物植物
噬菌体衍生酶靶向粪肠球菌生物膜以减轻急性移植物抗宿主病

Allogenic hematopoietic cell transplantation (allo-HCT) involves transferring healthy donor stem cells to recipients with conditions such as blood cancer, bone marrow failure, or certain genetic blood disorders. Acute graft-versus-host disease (aGVHD) is

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