Publications by authors named "Junwei Hao"

Micronutrient deficiency (hidden hunger) is one of the serious health problems globally, often due to diets dominated by staple foods. Genetic biofortification of a staple like wheat has surfaced as a promising, cost-efficient, and sustainable strategy. Significant genetic diversity exists in wheat and its wild relatives, but the nutritional profile in commercial wheat varieties has inadvertently declined over time, striving for better yield and disease resistance.

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Background: Glial fibrillary acidic protein-immunoglobulin G (GFAP-IgG) positivity is associated with autoimmune GFAP astrocytopathy (GFAP-A), but also with other autoimmune encephalitides and viral infections. We attempted to elucidate the characteristics of GFAP-A in relation to other GFAP-IgG-positive encephalitides and constructed a differential diagnosis model.

Methods: 141 GFAP-IgG-positive cases were identified, including 52 astrocytopathy (GFAP-A group), 48 autoimmune encephalitis (AE-G), and 41 viral encephalitis (VE-G).

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Background: Myasthenia gravis (MG) is an autoimmune neuromuscular disease marked by dysregulation of several immune cell populations. Here we explored peripheral immune landscape, particularly the role of low-density granulocytes (LDGs).

Methods: Single-cell and bulk RNA sequencing analyzed peripheral immune cells from MG patients pre- (n = 4) and after treatment (n = 2), as well as healthy controls (n = 3).

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Objective: To explore the clinical phenotypes, characteristics, immunotherapy response, and outcomes of glutamic acid decarboxylase-65 (GAD65) neurological autoimmunity.

Methods: We performed a retrospective review of patients diagnosed with GAD65 neurological autoimmunity in the Department of Neurology at Xuanwu Hospital over the past 6 years (2017-2023). The clinical and laboratory data, imaging, therapeutic response, and long-term prognosis of those patients were collected and analyzed.

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Diabetes-associated cognitive dysfunction (DACD) is increasingly recognized as a critical complication of diabetes. The complex pathology of DACD remains unknown. Here, we performed single-nucleus RNA sequencing (snRNA-seq) to demonstrate unique cellular and molecular patterns of the hippocampus from a mouse model of diabetes.

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Importance: Autoantibodies targeting astrocytes, such as those against glial fibrillary acidic protein (GFAP) or aquaporin protein 4, are crucial diagnostic markers for autoimmune astrocytopathy among central nervous system (CNS) autoimmune disorders. However, diagnosis remains challenging for patients lacking specific autoantibodies.

Objective: To characterize a syndrome of unknown meningoencephalomyelitis associated with an astrocytic autoantibody.

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Myocardial ischemia/reperfusion (IR) injury is a common adverse event in the clinical treatment of myocardial ischemic disease. Autosis is a form of cell death that occurs when autophagy is excessive in cells, and it has been associated with cardiac IR damage. This study aimed to investigate the regulatory mechanism of circRNA CDR1AS on autosis in cardiomyocytes under IR.

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Background And Objectives: The incidence of stroke among young adults was rising globally, but the death burden of stroke in young adults in China is lacking. We aimed to examine the temporal trends in mortality and years of life lost (YLLs) caused by stroke among young adults from 2005 to 2020 across China.

Methods: Based on the data from the National Mortality Surveillance System in China, we estimated the number and age-standardized rate of mortality and YLLs due to stroke and its subtypes among young adults aged 15-49 years during 2005-2020, for both China and its 31 mainland provinces.

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Background: Death burden of stroke is severe in China with over one-third rural residents, but there is still a lack of specific national and high-quality reports on the urban-rural differences in stroke burden, especially for subtypes. We aimed to update the understanding of urban-rural differences in stroke deaths.

Methods: This is a descriptive observational study.

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Article Synopsis
  • This study investigates how astrocytes and microglia change after an ischemic stroke, focusing on alternative splicing (AS) of genes, which has not been extensively explored before.
  • Researchers analyzed Ribo-Tag-seq data from male and female mice and found a significant increase in differential alternative splicing events, with astrocytes showing 109 events at 4 hours and 320 at 3 days poststroke, while microglia had 316 and 266, respectively.
  • The research highlights how these alternative splicing events are connected to important functions like immune response and metabolism, revealing the complexity of the molecular responses in the brain after a stroke.
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Aims: Colony stimulating factor 1 receptor (CSF1R)-related leukoencephalopathy is a rapidly progressing neurodegenerative disease caused by CSF1R gene mutations. This study aimed to identify and investigate the effect of a novel intronic mutation (c.1754-3C>G) of CSF1R on splicing.

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Previous studies have found that ferroptosis plays an important role in a variety of neurological diseases. However, the precise role of ferroptosis in the multiple sclerosis patients remains uncertain. We defined and validated a computational metric of ferroptosis levels.

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Multiple sclerosis (MS) is the most common inflammatory demyelinating disease of the central nervous system. 'Omics' technologies (genomics, transcriptomics, proteomics) and associated drug information have begun reshaping our understanding of multiple sclerosis. However, these data are scattered across numerous references, making them challenging to fully utilize.

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Cardiac conduction regulatory RNA (CCRR) has been documented as an antiarrhythmic lncRNA in our earlier investigation. This study aimed to evaluate the effects of CCRR on SERCA2a and the associated Ca homeostasis in myocardial infarction (MI). Overexpression of CCRR via AAV9-mediated delivery not only partially reversed ischemia-induced contractile dysfunction but also alleviated abnormal Ca homeostasis and reduced the heightened methylation level of SERCA2a following MI.

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Article Synopsis
  • Multiple sclerosis (MS) is a major cause of disability in young adults in China, with a significant increase in prevalence from 1990 to 2019, reaching approximately 42,571 cases by 2019.
  • The age-standardized prevalence rate rose by 23.31%, showing a noticeable latitudinal gradient with higher rates in northern regions compared to the south.
  • The health impact of MS is substantial, with China ranking third among G20 countries in terms of disability-adjusted life-years (DALYs) lost, primarily due to premature mortality, while the years lived with disability (YLDs) have significantly increased over the study period.
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China's carbon-neutral target could have benefits for ambient fine particulate matter (PM)-associated mortality. Although previous studies have researched such benefits, the potential impact on cardiovascular disease incidence burden is yet to be investigated thoroughly. Here, we first estimate the association between short-term PM exposure and the incidence of stroke and coronary heart disease (CHD) via a case-crossover study before projecting future changes in short-term PM-associated excess incidence across China from 2025 to 2060 under three different emission scenarios.

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Background: Myasthenia gravis (MG) is a chronic autoimmune disorder characterized by fluctuating muscle weakness. Despite the availability of established therapies, the management of MG symptoms remains suboptimal, partially attributed to lack of efficacy or intolerable side-effects. Therefore, new effective drugs are warranted for treatment of MG.

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Article Synopsis
  • The brain-computer interface (BCI) technology allows direct communication with the brain and is increasingly used in clinical settings, such as rehabilitation for stroke patients.
  • Researchers collected a unique dataset from 50 acute stroke patients using wireless saline EEG devices, focusing on motor imagery for right- and left-handed movements.
  • This dataset includes motor imagery instructions, raw and pre-processed EEG recordings, and patient characteristics, aimed at improving analysis of brain activation and developing better decoding methods for BCIs in stroke rehabilitation.
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Background: Stroke and dementia are the leading causes of neurological disease burden. Detrimental effects of air pollution on both conditions are increasingly recognised, while the impacts on the dynamic transitions have not yet been explored, and whether critical time intervals exist is unknown.

Methods: This prospective study was conducted based on the UK Biobank.

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Limited knowledge exists regarding the ramifications of climate warming on death burden from neurodegenerative diseases. Here, we conducted a nationwide, individual-level, case-crossover study between 2013 and 2019 to investigate the effects of non-optimal temperatures on various neurodegenerative diseases and to predict the potential death burden under different climate change scenarios. Our findings reveal that both low and high temperatures are linked to increased risks of neurodegenerative diseases death.

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Background: Timely and proper suppression of inflammation can effectively reduce myocardial injury and promote the postmyocardial infarction (post-MI) wound-healing process. We have previously found that cardiac conduction regulatory RNA (CCRR), a long noncoding RNA (lncRNA) transcribed by the gene located on chromosome 9, with abundant expression in the heart, elicits antiarrhythmic effects in heart failure, and this is a continuing study on the role of CCRR in MI.

Methods: CCRR was overexpressed in CCRR transgenic mice or after injection of adeno-associated virus-9 (AAV-9).

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Objective: As a potentially life-threatening condition, myasthenia gravis (MG) has limited epidemiological studies on mortality. We aim to provide demographic distribution, geographical variation, and temporal trend of MG-related mortality in China.

Methods: The national population-based analysis was conducted based on records derived from the National Mortality Surveillance System of China.

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The evaluation of animals' motion behavior has played a vital role in neuromuscular biomedical research and clinical diagnostics, which reflects the changes caused by neuromodulation or neurodamage. Currently, the existing animal pose estimation methods are unreliable, unpractical, and inaccurate.Data augmentation (random scaling, random standard deviation Gaussian blur, random contrast, and random uniform color quantization) is adopted to augment image dataset.

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Vitamin D deficiency is associated with worse clinical outcomes after ischemic stroke; nevertheless, the pathophysiological mechanisms remain largely unexplored. In this study, we characterized the molecular mechanisms of how vitamin D signaling modulated stroke progression in male mouse ischemia-reperfusion stroke models. We found that vitamin D receptor (VDR) exhibited a predominant upregulation in peri-infarct microglia/macrophages following cerebral ischemia.

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Stroke is characterised by high mortality and disability rate in China. This study aimed to explore the temporal trends in years of life lost (YLL) and loss of life expectancy due to stroke and its subtypes in urban and rural areas in China during 2005-2020. Data were obtained from China National Mortality Surveillance System.

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