Publications by authors named "Dechen Liu"

Examining the role of resting heart rate (RHR) in hypertension risk could improve our understanding of its pathogenesis. However, most relevant studies have been conducted in developed countries such as the United States and Brazil, with no evidence for the older Chinese population. Therefore, this study aimed to investigate the association between RHR and the risk of developing hypertension in an older Chinese population.

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Background: Evidence on the association of dynamic change in frailty index (FI) with risk of all-cause mortality in the older Chinese population is limited. This study aimed to explore the association of 3-year change in FI with risk of all-cause mortality in an older Chinese population.

Methods: We analyzed the data of 4969 participants from the Chinese Longitudinal Healthy Longevity Survey.

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Background: The prevalence of steatotic liver disease (SLD) in patients with type 2 diabetes (T2DM) exceeds 50%. This study aimed to investigate the clinical characteristics of SLD and liver fibrosis in Chinese patients with T2DM.

Methods: Inpatients from 2021 to 2023 were included in the study.

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Article Synopsis
  • The orbitofrontal cortex (ORB) is essential for linking stimuli to rewards and making decisions, but its intricate neural connections are not well understood.
  • Researchers mapped inputs to specific types of ORB neurons and the related outputs to inhibitory neurons, revealing that different ORB neurons receive inputs from similar brain regions with some variations.
  • The study found that parvalbumin (PV) interneurons are more prevalent in sensory areas while somatostatin (SST) interneurons are more common in subcortical regions related to medial ORB neurons, enhancing our understanding of ORB neuron functions.
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Levodopa-induced dyskinesia (LID) is an intractable motor complication arising in Parkinson's disease with the progression of disease and chronic treatment of levodopa. However, the specific cell assemblies mediating dyskinesia have not been fully elucidated. Here, we utilize the activity-dependent tool to identify three brain regions (globus pallidus external segment [GPe], parafascicular thalamic nucleus, and subthalamic nucleus) that specifically contain dyskinesia-activated ensembles.

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Article Synopsis
  • Mapping single-neuron projections in the hippocampus (HIP) is crucial to grasping how the brain's connectivity and functions work.
  • Researchers reconstructed over 10,000 single-neuron projectomes and identified 43 distinct subtypes based on their projection patterns.
  • The study revealed that projection characteristics vary based on neuron location in the HIP and highlighted wiring diagrams for neurons connecting within the HIP and to other brain regions, informing us about their functional roles.
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The rising prevalence of metabolic disorders such as obesity and type 2 diabetes mellitus (T2DM) poses a major challenge to global health. Existing therapeutic approaches have limitations, and there is a need for new, safe, and less invasive treatments. Interventional metabolic therapy is a new addition to the treatment arsenal for metabolic disorders.

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The secondary motor cortex (M2) encodes choice-related information and plays an important role in cue-guided actions. M2 neurons innervate the dorsal striatum (DS), which also contributes to decision-making behavior, yet how M2 modulates signals in the DS to influence perceptual decision-making is unclear. Using mice performing a visual Go/No-Go task, we showed that inactivating M2 projections to the DS impaired performance by increasing the false alarm (FA) rate to the reward-irrelevant No-Go stimulus.

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Brain-specific serine/threonine-protein kinase 2 (BRSK2) plays critical roles in insulin secretion and β-cell biology. However, whether BRSK2 is associated with human type 2 diabetes mellitus (T2DM) has not been determined. Here, we report that BRSK2 genetic variants are closely related to worsening glucose metabolism due to hyperinsulinemia and insulin resistance in the Chinese population.

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Background: Existing evidence on the association of dynamic change in sleep duration with risk of all-cause mortality in Chinese older population is limited. We aimed to explore the association of 3-year change in sleep duration with risk of all-cause mortality in a Chinese older population.

Materials And Methods: A total of 5772 Chinese older participants (median age 82 years) were enrolled in the current study.

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Article Synopsis
  • The study found that exocrine pancreatic insufficiency (EPI) affects about 22% of patients with type 2 diabetes, with a significant rate of severe cases (8%).
  • EPI prevalence varies by geography, being highest in Asian countries (35%) compared to Europe (18%) and Australia (9%).
  • Factors like higher insulin requirements and being under 60 years old are associated with a greater likelihood of developing EPI.
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To estimate the associations between single-nucleotide polymorphisms (SNPs) and methylation of SLC30A8 gene and T2DM risk, and the interactions among SNPs, methylation, and environmental factors on T2DM risk. We genotyped 9 SNPs and tested methylation at 46 CpG loci of SLC30A8 in the baseline DNA of 290 T2DM cases and 290 matched controls nested in the Rural Chinese Cohort Study. A conditional logistic regression model was used to estimate the associations between SNPs and SLC30A8 methylation and T2DM risk.

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We quantitatively evaluated the dose-response association of low and normal ankle brachial index (ABI) with the risk of morbidity and mortality from cardiovascular diseases (CVDs). PubMed, Embase, and Web of Science were systematically searched for cohort studies. Random effects or fixed effects models were used to estimate the pooled relative risks (RRs) and 95% confidence intervals (95% CIs).

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Aims: The evidence for association between cardiovascular health (CVH) metrics and type 2 diabetes mellitus (T2DM) in Chinese population is limited. We explored the association between the number of ideal CVH metrics and risk of incident T2DM in a rural Chinese population.

Materials And Methods: A total of 12,150 rural Chinese participants (median age 51 years) were enrolled.

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Background: People with chronic pancreatitis (CP) normally develop a fibrotic pancreas with reduced β-cell mass. Limited studies have focused on the development and pathogenesis of CP-related diabetes. MiRNAs packaged as exosomes are the key regulators of β-cell dysfunction.

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Diabetes of the exocrine pancreas (DEP), also commonly described as pancreatogenic diabetes mellitus, is a type of diabetes secondary to abnormalities in pancreatic or exocrine secretion of the pancreas. However, its pathogenesis is not yet known. The aim of this article was to explore the biomarkers of DEP and their potential molecular mechanisms.

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Background And Aims: We aimed to evaluate the joint effect of physical activity (PA) and blood lipid levels on all-cause and cardiovascular disease (CVD) mortality.

Methods And Results: We analyzed 17,236 participants from the Rural Chinese Cohort Study. Cox's proportional-hazards regression models were used to assess the hazard ratios (HRs) and 95% confidence intervals (CIs) between the joint effect of PA and blood lipid levels and risk of all-cause and CVD mortality.

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Prefrontal cortex (PFC) is the cognitive center that integrates and regulates global brain activity. However, the whole-brain organization of PFC axon projections remains poorly understood. Using single-neuron reconstruction of 6,357 mouse PFC projection neurons, we identified 64 projectome-defined subtypes.

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Aims: The early distinction of pancreatic cancer associated diabetes (PaCDM) in patients with elderly diabetes is critical. However, PaCDM and type 2 diabetes mellitus (T2DM) remain indistinguishable. We aim to address the differences between the pancreatic and gut endocrine hormones of patients with PaCDM and T2DM.

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Background: Although the functional damage of the diabetic pancreas can affect the postoperative recovery of pancreatic cancer patients, there is no significant difference in the prognosis of pancreatic cancer patients with a history of diabetes and ordinary pancreatic cancer patients. There is still no practical theory to explain this phenomenon.

Materials And Method: The mRNA expression profile data of 141 cases and 51 cases with clinical data of diabetes status were obtained from the TCGA database and the GEO database, respectively.

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Background And Aims: An association between cardiorespiratory fitness (CRF) and type 2 diabetes mellitus (T2DM) has not been established in the Chinese population. This study aimed to estimate the independent and joint associations of CRF and obesity with T2DM incidence in the rural Chinese population.

Methods And Results: We conducted a prospective study of 11,825 non-T2DM subjects among rural Chinese adults.

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Pancreatic β-cells adapt to compensate for increased metabolic demand during obesity. Although the miRNA pathway has an essential role in β-cell expansion, whether it is involved in adaptive proliferation is largely unknown. First, we report that EGR2 binding to the miR-455 promoter induced miR-455 upregulation in the pancreatic islets of obesity mouse models.

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Objective: More than one-third of chronic pancreatitis patients will eventually develop diabetes, recently classified as post-chronic pancreatitis diabetes mellitus (PPDM-C). This study was aimed to investigate the pancreatic and gut hormone responses to a mixed meal test in PPDM-C patients, compared with non-diabetic chronic pancreatitis (CP), and type 2 diabetes patients or healthy controls.

Design And Methods: Sixteen patients with PPDM-C, 12 with non-diabetic CP as well as 10 with type 2 diabetes and healthy controls were recruited.

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Diabetic nephropathy (DN) is one of the most common microvascular complications in diabetic patients, and is the main cause of end-stage renal disease. The exact molecular mechanism of DN is not fully understood. The aim of this study was to identify novel biomarkers and mechanisms for DN disease progression by weighted gene co-expression network analysis (WGCNA).

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