Publications by authors named "Shuhan Duan"

Article Synopsis
  • The study focuses on the Tujia, the largest ethnic minority in southwestern China, to gain insights into their genetic diversity and evolutionary history, which has been under-researched.
  • Results indicate that the Tujia population exhibits a mix of northern and southern ancestries and shares genetic similarities with nearby Sinitic-speaking groups, revealing connections to ancient millet farmers.
  • The research also uncovers unique genetic adaptations related to traits like hair and skin characteristics in the Tujia, emphasizing their diverse genetic heritage and population movements in East Asia.
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Introduction: Traditional surgical resection, radiotherapy, and chemotherapy have been the treatment options for patients with head and neck squamous cell carcinoma (HNSCC) over the past few decades. Nevertheless, the five-year survival rate for patients has remained essentially unchanged, and research into treatments has been relatively stagnant. The combined application of photothermal therapy (PTT) and immunotherapy for treating HNSCC has considerable potential.

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Genetic genealogy provides crucial insights into the complex biological relationships within contemporary and ancient human populations by analyzing shared alleles and chromosomal segments that are identical by descent to understand kinship, migration patterns, and population dynamics. Within forensic science, forensic investigative genetic genealogy (FIGG) has gained prominence by leveraging next-generation sequencing technologies and population-specific genomic resources, opening new investigative avenues. In this review, we synthesize current knowledge, underscore recent advancements, and discuss the growing role of FIGG in forensic genomics.

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  • * Genomic analysis of 264 individuals from Han populations in Shandong revealed that they share a close genetic link to ANEA, indicating long-term genetic continuity in the region and adaptations related to immune and metabolic functions.
  • * The study identified specific genes linked to local adaptations that influence traits such as height, body mass index, and other health-related characteristics, highlighting the role of environment and lifestyle in shaping genetic diversity in East Asians.
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  • Large-scale genomic projects and innovations in ancient DNA have improved our understanding of human evolution, but the genetic connections of ancient Eurasians to modern Chinese paternal lineages remain unclear.
  • Researchers created a Y-chromosome genomic database of 15,563 individuals, revealing multiple population movements and expansions during the Neolithic era, significantly impacting the genetic landscape of modern Chinese people.
  • The study identifies four major ancient migrations linked to technological advancements: early East Asian millet farmers, rice farmers, Neolithic Siberian hunter-gatherers, and western Eurasian pastoralists, all of which have shaped the genetic diversity seen in contemporary populations.
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  • - Genetic and environmental factors contribute to esophageal cancer (EC), with a particular focus on the high incidence rate of EC in northern Sichuan, China, where the underlying reasons are not fully understood.
  • - A study analyzed genetic structures using genome-wide SNPs and Y-STRs in 214 individuals from the Sichuan Han Chinese population, revealing a distinct genetic difference between the EC group and a control group, as well as strong connections to high-risk populations in Fujian and Chaoshan.
  • - High-density SNP data from 60 healthy Han Chinese individuals across Sichuan, Fujian, and Henan indicated a close genetic relationship among these regions, hinting at shared evolutionary history and admixture events among high-prevalence EC populations
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Pathogen‒host adaptative interactions and complex population demographical processes, including admixture, drift, and Darwen selection, have considerably shaped the Neolithic-to-Modern Western Eurasian population structure and genetic susceptibility to modern human diseases. However, the genetic footprints of evolutionary events in East Asia remain unknown due to the underrepresentation of genomic diversity and the design of large-scale population studies. We reported one aggregated database of genome-wide SNP variations from 796 Tai-Kadai (TK) genomes, including that of Bouyei first reported here, to explore the genetic history, population structure, and biological adaptative features of TK people from southern China and Southeast Asia.

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Background: The underrepresentation of human genomic resources from Southern Chinese populations limited their health equality in the precision medicine era and complete understanding of their genetic formation, admixture, and adaptive features. Besides, linguistical and genetic evidence supported the controversial hypothesis of their origin processes. One hotspot case was from the Chinese Guangxi Pinghua Han people (GPH), whose language was significantly similar to Southern Chinese dialects but whose uniparental gene pool was phylogenetically associated with the indigenous Tai-Kadai (TK) people.

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Background: The underrepresentation of Hmong-Mien (HM) people in Asian genomic studies has hindered our comprehensive understanding of the full landscape of their evolutionary history and complex trait architecture. South China is a multi-ethnic region and indigenously settled by ethnolinguistically diverse HM, Austroasiatic (AA), Tai-Kadai (TK), Austronesian (AN), and Sino-Tibetan (ST) people, which is regarded as East Asia's initial cradle of biodiversity. However, previous fragmented genetic studies have only presented a fraction of the landscape of genetic diversity in this region, especially the lack of haplotype-based genomic resources.

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Tibeto-Burman (TB) people have endeavored to adapt to the hypoxic, cold, and high-UV high-altitude environments in the Tibetan Plateau and complex disease exposures in lowland rainforests since the late Paleolithic period. However, the full landscape of genetic history and biological adaptation of geographically diverse TB-speaking people, as well as their interaction mechanism, remain unknown. Here, we generate a whole-genome meta-database of 500 individuals from 39 TB-speaking populations and present a comprehensive landscape of genetic diversity, admixture history, and differentiated adaptative features of geographically different TB-speaking people.

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Background: Yungui Plateau in Southwest China is characterized by multi-language and multi-ethnic communities and is one of the regions with the wealthiest ethnolinguistic, cultural and genetic diversity in East Asia. There are numerous Tai-Kadai (TK)-speaking populations, but their detailed evolutionary history and biological adaptations are still unclear.

Results: Here, we genotyped genome-wide SNP data of 77 unrelated TK-speaking Zhuang and Dong individuals from the Yungui Plateau and explored their detailed admixture history and adaptive features using clustering patterns, allele frequency differentiation and sharing haplotype patterns.

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Article Synopsis
  • The study focuses on the Y-chromosome's role in tracing male human evolution, highlighting the importance of Y-chromosome genetic diversity in understanding population divergence and ancestry.
  • Researchers developed a high-resolution panel for Y-chromosome single nucleotide polymorphisms (Y-SNPs), genotyping 1033 Chinese men from various ethnic backgrounds, resulting in 256 identified Y-chromosomal lineages.
  • Findings revealed significant genetic differentiation among different ethnic groups in China, with specific founding lineages prominent in distinct populations, underscoring the relationship between genetics and cultural-linguistic diversity.
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  • - The study investigates the genetic structure of Hmong-Mien populations, particularly the Miao people, to understand their evolutionary history and adaptive traits in relation to other Chinese populations.
  • - Using genome-wide SNP data from Guizhou, the research reveals that the Miao people's ancestry is largely derived from nearby Guangxi Gaohuahua populations, highlighting significant genetic differentiation and a possible historical population bottleneck.
  • - The findings identify candidate genes related to natural selection, reflecting unique biological adaptations of the Miao people and emphasizing their close genetic ties to other southern Chinese indigenous communities.
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