Publications by authors named "Yixue Shao"

Article Synopsis
  • Obesity causes pancreatic β-cell dysfunction linked to increased levels of microRNAs (miRNAs), specifically miR-27a-5p, which negatively impacts insulin secretion.
  • miR-27a-5p is transported by extracellular vesicles from visceral fat, and reducing its levels in obese mice improves insulin secretion and glucose tolerance.
  • The study identifies miR-27a-5p as a key factor in visceral fat's role in causing β-cell dysfunction in obesity-related type 2 diabetes by targeting and reducing the function of the L-type calcium channel CaV1.2.
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Objective: To estimate lifetime incremental medical spending attributed to incident type 2 diabetes (T2D) among Medicare beneficiaries by age at diagnosis, sex, and race/ethnicity.

Research Design And Methods: We used the 1999-2019 100% Medicare fee-for-service claims database to identify a cohort of beneficiaries with newly diagnosed T2D in 2001-2003 using ICD codes. We matched this cohort with a nondiabetes cohort using a propensity score method and then followed the two cohorts until death, disenrollment, or the end of 2019.

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Excessive macroautophagy/autophagy leads to pancreatic β-cell failure that contributes to the development of diabetes. Our previous study proved that the occurrence of deleterious hyperactive autophagy attributes to glucolipotoxicity-induced NR3C1 activation. Here, we explored the potential protective effects of (-)-epigallocatechin 3-gallate (EGCG) on β-cell-specific NR3C1 overexpression mice and NR3C1-enhanced β cells .

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Background: Type 2 diabetes mellitus (T2DM) results in heavy economic and disease burdens in Louisiana. The Centers for Medicare and Medicaid Services has reimbursed non-face-to-face chronic care management (NFFCCM) for patients with two or more chronic conditions since 2015.

Objective: To assess the impacts of NFFCCM on healthcare utilization and health outcomes.

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Introduction: The impact of telehealth use on healthcare utilization is limited, especially among Medicaid beneficiaries with type 2 diabetes. Considering the rapid adoption of telehealth during the COVID-19 pandemic, this study examined associations between telehealth use and healthcare utilization among Medicaid beneficiaries with type 2 diabetes.

Methods: Using Louisiana Medicaid claims data from March 2019 to August 2021, the associations were examined using a difference-in-difference model with propensity score weighting.

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Aim: To evaluate the impact of telehealth use during the COVID-19 pandemic on glycaemic control and other clinical outcomes among patients with type 2 diabetes.

Methods: We used electronic health records from the Research Action for Health Network (REACHnet) database for patients with type 2 diabetes who had telehealth visits and those who only received in-person care during the pandemic. A quasi-experimental method of difference-in-difference with propensity-score weighting was implemented to mitigate selection bias and to control for observed factors related to telehealth use.

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Article Synopsis
  • The BRAVO diabetes model is a microsimulation tool developed for managing type 2 diabetes, focusing on using fully de-identified data to ensure privacy in secure research environments.
  • To test the model, researchers used de-identified patient data from the EXSCEL trial and imputed missing details with data from NHANES, assessing the model's ability to predict various health outcomes over seven years.
  • The results showed that the BRAVO model performs well in predicting critical diabetes-related complications and mortality, confirming its effectiveness even when using limited and anonymized data.
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Aim: To examine trends in telehealth use among Medicaid beneficiaries with type 2 diabetes (T2D) before and during the coronavirus disease 2019 (COVID-19) pandemic and identify factors related to telehealth use.

Methods: We compared monthly proportions of outpatient visits delivered by telehealth by race/ethnicity, geography and age among Louisiana Medicaid beneficiaries with T2D using claims data from January 2018 to August 2021. We also examined the changes in provider types delivering telehealth.

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Background: Limited availability of in-person health care services and fear of contracting COVID-19 during the pandemic promoted an increased reliance on telemedicine. However, long-standing inequities in telemedicine due to unequal levels of digital literacy and internet connectivity among different age groups raise concerns about whether the uptake of telemedicine has exacerbated or alleviated those inequities.

Objective: The aim of this study is to examine changes in telemedicine and in-person health service use during the COVID-19 pandemic across age groups for Medicaid beneficiaries in the state of Louisiana.

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Diabetes is a complex and heterogeneous disorder characterized by chronic hyperglycemia. Its core cause is progressively impaired insulin secretion by pancreatic β-cell failures, usually upon a background of preexisting insulin resistance. Recent studies demonstrate that macroautophagy/autophagy is essential to maintain architecture and function of β-cells, whereas excessive autophagy is also involved in β-cell dysfunction and death.

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Background: At the onset of the COVID-19 pandemic, the Centers for Medicare and Medicaid Services broadened access to telehealth. This provided an opportunity to test whether diabetes, a risk factor for COVID-19 severity, can be managed with telehealth services.

Objective: The objective of this study was to examine the impacts of telehealth on diabetes control.

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Background: The COVID-19 pandemic led to an increased reliance on telemedicine. Whether this exacerbated existing disparities within vulnerable populations is not yet known.

Objectives: Characterize changes in outpatient telemedicine evaluation and management (E&M) services for Louisiana Medicaid beneficiaries by race, ethnicity, and rurality during the COVID-19 pandemic.

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Aims: We evaluated the impact of reimbursement for non-face-to-face chronic care management (NFFCCM) on comprehensive metabolic risk factors among multimorbid Medicare beneficiaries with type 2 diabetes in Louisiana.

Materials And Methods: We implemented a propensity score method to obtain comparable treatment (n=1501 with NFFCCM) and control (n=17,524 without NFFCCM) groups. Patients with type 2 diabetes were extracted from the electronic health records stored in REACHnet.

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Objectives: We evaluated the impact of reimbursement for non-face-to-face chronic care management (NFFCCM) on healthcare utilization among Medicare beneficiaries with type 2 diabetes in Louisiana.

Methods: We implemented group-based trajectory balancing and propensity score matching to obtain comparable treatment (with NFFCCM) and control (without NFFCCM) groups at baseline. Patients with diabetes with Medicare as their primary payer at baseline were extracted using electronic health records of 3 health systems from Research Action for Health Network, a Clinical Research Network.

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Background: Harmonic ACE +7 Shears with Advanced Hemostasis is an upgraded ultrasonic device, an ultrasonic surgical and electrosurgical system (USES). The study aimed to evaluate the economic and clinical effectiveness of the USES compared with the conventional ultrasonic scalpel (CUS) in gastrectomy.

Methods: We conducted a single-center, retrospective cohort study using the electronic medical records in China.

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The COVID-19 pandemic disrupted routine vaccinations for children and adolescents. However, it remains unclear whether the impact has been different for children and adolescents from low-income families. To address this, we compared monthly routine vaccination use per 1000 vaccine-eligible children and adolescents enrolled in Louisiana Medicaid in the years before (2017-2019) and during the COVID-19 pandemic (2020).

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Objectives: Louisiana extended Medicaid coverage on July 1, 2016, to previously ineligible populations. We aimed to estimate the effect of Louisiana's Medicaid expansion on self-reported affordability of health care.

Methods: We used 2011-2019 data from the Behavioral Risk Factor Surveillance System (BRFSS).

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Objectives: This study aimed to estimate the impact of the Check It program, a novel community-based chlamydia seek, test, and treat program for young Black men who have sex with women, on test positivity rates for chlamydia in young Black women.

Methods: We used a synthetic control model to compare chlamydia test positivity rates in Orleans Parish (intervention site) with other similar parishes (control sites) in Louisiana. We estimated a model that used all other parishes as potential contributors to a synthetic control for Louisiana as well as a sample limited to the 40 parishes in Louisiana with the largest Black populations.

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Chronic ethanol consumption is a well-established independent risk factor for type 2 diabetes mellitus (T2DM). Recently, increasing studies have confirmed that excessive heavy ethanol exerts direct harmful effect on pancreatic β-cell mass and function, which may be a mechanism of pancreatic β-cell failure in T2DM. In this study, we evaluated the effect of Lentinan (LNT), an active ingredient purified from the bodies of Lentinus edodes, on pancreatic β-cell apoptosis and dysfunction caused by ethanol and the possible mechanisms implicated.

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Objective: We conducted a meta-analysis to compare major adverse cardiovascular events (MACEs) in recent diabetes type 2 drugs cardiovascular outcome trials (CVOTs) in the subgroups that used insulin at baseline to the subgroups that did not.

Methods: English publications from 2010 to 2019 were searched in PubMed and Google Scholar. We searched published clinical trials for CVOTs with new drugs for type 2 diabetes and found 12 publications, of which 8 provided outcomes according to insulin use.

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Introduction: This systematic review aims to provide a critical summary of economic evaluations of pneumococcal vaccines for adults aged 50 years or older in low- and middle-income countries (LMICs): a 23-valent polysaccharide vaccine (PPSV23), and a 13-valent conjugated vaccine (PCV13).

Areas Covered: We systematically searched for studies published until October2020 in PubMed and Web of Science. Searching strategies in this literature review were done using various combinations of terms related to 'economic evaluation or cost-effectiveness or cost-benefit or cost-utility,' 'pneumococcal or PPSV or PCV or PPV,' and 'vaccine or vaccination or immunization' in all fields.

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