Publications by authors named "Y-M Yan"

Purpose: To investigate whether lateral femoral condyle ratio (LFCR) and lateral femoral condyle index (LFCI) were associated with a greater risk of anterior cruciate ligament (ACL) injury and concomitant injuries.

Methods: This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and was registered on PROSPERO. PubMed, Web of Science, Embase, and the Cochrane Library were searched from inception to April 1, 2024.

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Non-alcoholic steatohepatitis (NASH) is a severe type of the non-alcoholic fatty liver disease (NAFLD). NASH is a growing global health concern due to its increasing morbidity, lack of well-defined biomarkers and lack of clinically effective treatments. Using metabolomic analysis, the most significantly changed active lipid sphingosine d18:1 [So(d18:1)] is selected from NASH patients.

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Intestinal barrier hyperpermeability, which is characterised by impaired tight junction proteins, is associated with a variety of gastrointestinal and systemic diseases. Therefore, maintaining intestinal barrier integrity is considered one of the effective strategies to reduce the risk of such disorders. This study aims to investigate the potential benefits of two probiotic strains ( ST-III and KF7) on intestinal barrier function by using a physiologically relevant in vitro model of the intestinal epithelium.

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T cell receptor (TCR)-engineered T cell therapy is a promising potential treatment for solid tumors, with preliminary efficacy demonstrated in clinical trials. However, obtaining clinically effective TCR molecules remains a major challenge. We have developed a strategy for cloning tumor-specific TCRs from long-term surviving patients who have responded to immunotherapy.

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Article Synopsis
  • The study investigates the link between HIV, hepatitis C virus (HCV), and the presence of carotid artery atherosclerotic plaques, which are related to an increased risk of stroke.
  • Conducted on participants from the MACS/WIHS Combined Cohort Study, researchers used high-resolution ultrasound to analyze plaque characteristics and controlled for various demographic and health factors in their analysis.
  • Findings show that individuals with HIV, especially those with a low CD4 count, and those with HCV—either alone or in combination with HIV—exhibited different types of plaques, indicating various risk profiles for cardiovascular issues.
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Epstein-Barr virus (EBV) is a type of human -herpesvirus, and its reactivation plays an important role in the development of EBV-driven Burkitt lymphoma (BL). Despite intensive chemotherapy, the prognosis of relapsed/refractory BL patients remains unfavorable, and a definitive method to completely eliminate latent EBV infection is lacking. Previous studies have demonstrated that histone deacetylase (HDAC) inhibitors can induce the transition of EBV from latency to the lytic phase.

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  • A study investigated the effectiveness and safety of acupuncture, doxylamine-pyridoxine, and their combination for treating moderate to severe nausea and vomiting during pregnancy (NVP) in 352 early-pregnancy women across 13 hospitals in China from mid-2020 to early 2022.
  • Results showed that all treatment groups (acupuncture, doxylamine-pyridoxine, and the combination) significantly reduced nausea scores compared to controls, with the combination being the most effective.
  • However, the treatment with doxylamine-pyridoxine was associated with a higher risk of having babies who were small for their gestational age, and the true clinical significance of these findings remains unclear
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Background: Whether hospitalized patients benefit from COVID-19 oral antivirals is uncertain.

Objective: To examine the real-world effectiveness of molnupiravir and nirmatrelvir-ritonavir in hospitalized patients with COVID-19 during the Omicron outbreak.

Design: Target trial emulation study.

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Background: Vascular aging, as assessed by structural and functional arterial properties, is an independent predictor of cardiovascular outcomes. We aimed to explore the associations of individual cardiovascular risk factors from childhood to midlife and their accumulation over a 30-year span with vascular aging in midlife.

Methods: Using data from the ongoing cohort of Hanzhong Adolescent Hypertension study, 2180 participants aged 6 to 18 years at baseline were followed for over 30 years.

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SARS-CoV-2 Omicron variants feature highly mutated spike proteins with extraordinary abilities in evading antibodies isolated earlier in the pandemic. Investigation of memory B cells from patients primarily with breakthrough infections with the Delta variant enables isolation of a number of neutralizing antibodies cross-reactive to heterologous variants of concern (VOCs) including Omicron variants (BA.1-BA.

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Background: High blood pressure (BP) is highly prevalent in patients with chronic kidney disease. However, the thresholds to initiate BP-lowering treatment in this population are unclear. We aimed to examine the associations between BP levels and clinical outcomes and provide evidence on potential thresholds to initiate BP-lowering therapy in people with chronic kidney disease.

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Background: Establishing registries to collect demographic characteristics, processes of care, and outcomes of patients with out-of-hospital cardiac arrest (OHCA) can better understand epidemiological trends, measure care quality, and identify opportunities for improvement. This study aimed to describe the design, implementation, and scientific significance of a nationwide registry-the BASIC-OHCA (Baseline Investigation of Out-of-Hospital Cardiac Arrest)-in China.

Methods: BASIC-OHCA was designed as a prospective, multicenter, observational, population-based study.

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Background: Cardiac regeneration after injury is limited by the low proliferative capacity of adult mammalian cardiomyocytes (CMs). However, certain animals readily regenerate lost myocardium through a process involving dedifferentiation, which unlocks their proliferative capacities.

Methods: We bred mice with inducible, CM-specific expression of the Yamanaka factors, enabling adult CM reprogramming and dedifferentiation in vivo.

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Article Synopsis
  • The study investigates the relationship between blood pressure (systolic and diastolic) and cardiovascular disease (CVD) specifically in individuals without major cardiovascular risk factors.
  • A large cohort of 36,042 participants was analyzed, focusing on those with optimal glycemic and lipid profiles, over a follow-up period to assess the development of CVD.
  • Results showed a significant linear increase in CVD risk for higher blood pressure levels, with specific hazard ratios indicating increased risk associated with certain systolic (110-139 mm Hg) and diastolic (80-89 mm Hg) blood pressure ranges compared to lower levels.
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Background And Objectives: Spontaneous spinal epidural hematoma (SSEH) is an uncommon but serious condition with a high morbidity rate. Although SSEH is related to numerous risk factors, its etiology remains unclear. There is a paucity of data on its prognostic factors.

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Background: Recent evidence indicates that long-term visit-to-visit blood pressure variability (BPV) may be associated with risk of cardiovascular disease. We, therefore, aimed to determine the potential associations of long-term BPV from childhood to middle age with subclinical kidney damage (SKD) and albuminuria in adulthood.

Methods: Using data from the ongoing cohort of Hanzhong Adolescent Hypertension study, which recruited children and adolescents aged 6 to 18 years at baseline, we assessed BPV by SD and average real variability (ARV) for 30 years (6 visits).

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Insulin analogs have been developed to treat diabetes with focus primarily on improving the time action profile without affecting ligand-receptor interaction or functional selectivity. As a result, inherent liabilities (e.g.

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RNA-dependent RNA polymerases play essential roles in RNA-mediated gene silencing in eukaryotes. In , RNA-DEPENDENT RNA POLYMERASE 2 (RDR2) physically interacts with DNA-dependent NUCLEAR RNA POLYMERASE IV (Pol IV) and their activities are tightly coupled, with Pol IV transcriptional arrest, induced by the nontemplate DNA strand, somehow enabling RDR2 to engage Pol IV transcripts and generate double-stranded RNAs. The double-stranded RNAs are then released from the Pol IV-RDR2 complex and diced into short-interfering RNAs that guide RNA-directed DNA methylation and silencing.

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Article Synopsis
  • Brugada syndrome (BrS) is linked to mutations in a cardiac sodium channel gene, but there is limited research on the genetic factors in patients experiencing their first arrhythmic events.
  • A large survey of 678 BrS patients across 14 countries identified 392 probands, with 23.5% having pathogenic or likely pathogenic (P/LP) variants, revealing differences in demographics and clinical features based on genotype.
  • Results showed that patients with P/LP variants were generally younger, more often female, and had a higher incidence of family history of sudden cardiac death, suggesting a complex interplay between genetics, age, gender, and ethnicity in BrS.
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Introduction: Azathioprine-induced pancreatitis is an idiosyncratic and unpredictable response, occurring in up to 7% of azathioprine-exposed patients with inflammatory bowel disease (IBD). The haplotype HLADQA1-HLADRB1*07:01A>C is strongly associated with azathioprine-induced pancreatitis in IBD. We aimed to evaluate whether pretreatment HLADQA1-HLADRB1*07:01A>C screening will reduce the risk of azathioprine-induced pancreatitis.

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Objective: To measure the global impact of COVID-19 pandemic on volumes of IV thrombolysis (IVT), IVT transfers, and stroke hospitalizations over 4 months at the height of the pandemic (March 1 to June 30, 2020) compared with 2 control 4-month periods.

Methods: We conducted a cross-sectional, observational, retrospective study across 6 continents, 70 countries, and 457 stroke centers. Diagnoses were identified by their ICD-10 codes or classifications in stroke databases.

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Background: Heart failure (HF) is among the leading causes of morbidity and mortality, and its prevalence continues to rise. LARP7 (La ribonucleoprotein domain family member 7) is a master regulator that governs the DNA damage response and RNAPII (RNA polymerase II) pausing pathway, but its role in HF pathogenesis is incompletely understood.

Methods: We assessed LARP7 expression in human HF and in nonhuman primate and mouse HF models.

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Increasing evidence suggests a role of epigenetic mechanisms at chromosome 8q24, an important cancer genetic susceptibility region, in prostate cancer. We investigated whether DNA methylation at 8q24 (six CpG sites from exon 3 to the 3' UTR) in prostate tumor was associated with tumor aggressiveness (based on Gleason score, GS), and we incorporated RNA expression data to investigate the function. We accessed radical prostatectomy tissue for 50 Caucasian and 50 African American prostate cancer patients at the University of Maryland Medical Center, selecting an equal number of GS 6 and GS 7 cases per group.

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Rationale: We recently discovered pivotal contributions of stress kinase JNK2 (c-Jun N-terminal kinase isoform 2) in increased risk of atrial fibrillation through enhanced diastolic sarcoplasmic reticulum (SR) calcium (Ca) leak via RyR2 (ryanodine receptor isoform 2). However, the role of JNK2 in the function of the SERCA2 (SR Ca-ATPase), essential in maintaining SR Ca content cycling during each heartbeat, is completely unknown.

Objective: To test the hypothesis that JNK2 increases SERCA2 activity SR Ca content and exacerbates an arrhythmic SR Ca content leak-load relationship.

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