Technology News | Research finds genetic link between fingerprints and limb development

【Today’s cover】

Recently, the Nanxi River section of Xin'an River in Huangshan, Anhui Province welcomed many pairs of wild mandarin ducks. Some of them were playing in the water, some were preening their feathers on the shore, and some were flying side by side. Photo by Ye Zhenghong, China News Service

News Station

Screenshot of the State Post Bureau website

●On January 7, the State Post Bureau issued a notice on soliciting public opinions on the "Regulations on the Administration of the Express Market (Draft for Revision)" (Draft for Comments). It mentioned that: Enterprises engaged in express delivery business shall not confirm the receipt of express delivery on behalf of users without the consent of users, and shall not deliver express delivery to smart express boxes, express service stations and other express terminal service facilities without authorization; enterprises engaged in express delivery business shall adopt security technical measures such as encryption and de-identification to protect the information security of express delivery waybills, and shall not fully display the identity information of natural persons. No unit or individual shall illegally use or resell express delivery waybills. (Source: China News Network)

On January 5, in Zhoujiazhuang Village, Guodu Street, Chang'an District, Xi'an, medical staff prepared to conduct nucleic acid tests at homes. Photo by Xinhua News Agency reporter Shao Rui

●On January 7, Xi'an, Shaanxi Province issued a notice to further clarify the medical treatment process for various types of personnel. The notice requires that all communities (villages), Xi'an emergency centers and medical institutions in the city shall not use the 48-hour negative nucleic acid test certificate as a restriction on entering and leaving the community for medical treatment, transferring patients and receiving treatment. After the patient arrives at the receiving hospital, if he does not have a 48-hour negative nucleic acid test certificate, he can receive treatment normally after the nucleic acid is collected simultaneously. (Source: CCTV News Client)

Image source: CCTV News Client

●Recently, the organ transplantation team of the People's Hospital of Guangxi Zhuang Autonomous Region successfully performed a kidney transplant on a child infected with human immunodeficiency virus (HIV) and suffering from renal failure. It is reported that this is the first kidney transplant operation for a child infected with HIV in the country. (Source: CCTV News Client)

Pure Technology

Li Jinxi, a postdoctoral fellow at the Human Phenotype Group Research Institute of Fudan University and the first author of the paper, demonstrates the fingerprint collection device. Image source: Fudan University official website

●Recently, an international study led by Chinese scientists conducted a genome-wide association scan and multi-population meta-analysis on more than 23,000 individuals, identifying 43 genetic loci associated with human fingerprint patterns. After analyzing the relationship between millions of genetic loci and fingerprint patterns, the researchers pointed out that genes related to human limb development play a key role in the formation of fingerprint pattern phenotypes. On January 7, the relevant research results were published in the main journal of Cell. (Source: Science and Technology Daily)

●The regenerative medicine team of Dai Jianwu, a researcher at the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences, and the team of Hu Yali, a professor at Nanjing Drum Tower Hospital, have collaborated for the first time to perform single-cell sequencing analysis of the human embryonic spinal cord in the early and mid-pregnancy period using single-cell transcriptome technology, providing theoretical support for understanding human spinal cord development, studying spinal cord regeneration and repair, and exploring the selection of seed cells in in vitro spinal cord manufacturing strategies. Related research was recently published in EMBO Reports. (Source: China Science Daily)

See the world

Image source: Observer.com Weibo

●According to statistics from Johns Hopkins University in the United States, as of 10:21 am Beijing time on January 7, 2022, the cumulative number of confirmed cases of COVID-19 worldwide has exceeded 300 million, reaching 30,002,021, and the cumulative number of deaths has reached 5,471,856. Among them, the United States is the country with the most confirmed cases and deaths of COVID-19 in the world. (Source: China News Network)

●On January 6, Science magazine published a study in which American scientists demonstrated a new method of using mRNA preparations to reprogram T cells to attack fibroblasts in the heart. Injecting mRNA preparations into mice simulating heart failure successfully reprogrammed a large number of mouse T cells, resulting in a significant reduction in cardiac fibrosis in the animals and the restoration of most normal heart function. (Source: Science and Technology Daily)

Grand View Garden

"Ice butterflies" are everywhere in Doulonggou Village, Houma, Shanxi. Image source: CCTV News Client

●Recently, the "Ice Butterflies" that covered the mountains in Doulonggou Village, Houma, Shanxi Province, attracted many photography enthusiasts. "Ice Butterflies" is a natural landscape that often forms from December to February of the following year. When the temperature, humidity, wind speed and wind direction are suitable, thin ice flakes like butterflies will form on the mint grass in the mountains. They are crystal clear and have different shapes, hence the name. (Source: CCTV News Client)

Editor: Zhang Shuang

Reviewer: Wang Xiaolong

Final review: Liu Haiying

Science and Technology Daily