Publications by authors named "Ramesh Gautam"

Background: Continuous glucose monitors (CGMs) are increasingly being used to guide glucose management in the hospital. However, uncertainty regarding their accuracy in this setting remains.

Methods: We conducted a nonrandomized, open-label, clinically blinded prospective trial of the Dexcom G6 Pro (G6P) and FreeStyle Libre Pro (FLP) in the inpatient setting among critically ill hospitalized patients (n = 40) requiring continuous intravenous insulin infusion.

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Background: Dietary quality has been linked to better glycemic control, but the precise molecular mechanisms giving rise to these associations are not fully understood.

Objectives: To examine the association of metabolites associated with the intake of a healthy diet with measures of insulin/glucose homeostasis.

Methods: Using cross-sectional data from 295 United States adults, the associations between 3 diet pattern scores and metabolome-wide metabolites were estimated via linear regression models, which controlled for demographic factors and health behaviors.

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Background: In 2019, the EAT-Lancet Commission on healthy diets from sustainable food systems proposed a Planetary Health Diet that seeks to optimise both chronic disease prevention as well as global environmental health. In this study, we aimed to examine the association between a dietary index based on the Planetary Health Diet and risk of cardiovascular disease.

Methods: We included women from the Nurses' Health Study (NHS I; 1986-2016), women from the Nurses' Health Study II (NHS II; 1991-2017), and men from the Health Professionals Follow-up Study (HPFS; 1986-2016) who were free of cardiovascular disease, cancer, and diabetes at baseline.

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Despite the availability of successful vaccines, measles outbreaks have occurred frequently in recent years, presumably due to the lack of proper vaccination implementation. Moreover, measles cases in adult groups, albeit small in number, indicate that the previously neglected adult group may need to be brought into vaccine coverage to achieve WHO's goal of measles eradication from the globe. In this study, we develop a novel transmission dynamics model to describe measles cases in adults and children to evaluate the role of adult infection in persistent measles cases and vaccination programs for eradication.

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Short-chain fatty acids (SCFAs) have been extensively studied for potential beneficial roles in glucose homeostasis and risk of diabetes; however, most of this research has focused on butyrate, acetate, and propionate. The effect on metabolism of branched SCFAs (BSCFAs; isobutyrate, isovalerate, and methylbutyrate) is largely unknown. In a cohort of 219 non-Hispanic White participants and 126 African American participants, we examined the association of BSCFA with dysglycemia (prediabetes and diabetes) and oral glucose tolerance test-based measures of glucose and insulin homeostasis, as well as with demographic, anthropometric, lifestyle, and lipid traits, and other SCFAs.

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  • The study examined the link between avocado consumption and blood sugar control among Hispanic/Latino adults.
  • Participants were analyzed for various glucose and insulin measures like fasting glucose and hemoglobin A1c across different glycemic statuses.
  • Results indicated that avocado intake was positively associated with better insulin responses in healthy adults and improved glucose levels in those with Type 2 diabetes, highlighting potential benefits for managing blood sugar.
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  • The study developed mathematical models to estimate infection and hospitalization risks during the Delta and Omicron COVID-19 surges in Nepal, highlighting key insights for resource allocation and health policy planning.
  • It found no significant differences in reproduction numbers between the two variants, but clear variations in infection risk across provinces, with Bagmati having the highest risk and Madhesh the lowest during both surges.
  • The research indicated that hospitalization risks were considerably lower during the Omicron surge compared to Delta, and that targeted NPIs, like closing schools and workplaces, could effectively reduce infection rates.
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Background: Chlamydia trachomatis is infecting service members (SMs) at a rate of two to three times that of the U.S. population.

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  • * A study examined how different ABO blood haplotypes relate to insulin traits in African Americans and non-Hispanic whites, using genetic markers and gut bacteria data.
  • * For non-Hispanic whites, the A1 haplotype was linked to better insulin sensitivity and lower lactate levels, suggesting lactate could mediate this effect, whereas no significant associations were found in African Americans.
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Gut microbiome studies have documented depletion of butyrate-producing taxa in type 2 diabetes. We analyzed associations between butyrate-producing taxa and detailed measures of insulin homeostasis, whose dysfunction underlies diabetes in 224 non-Hispanic Whites and 129 African Americans, all of whom completed an oral glucose tolerance test. Stool microbiome was assessed by whole-metagenome shotgun sequencing with taxonomic profiling.

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  • Continuous glucose monitoring (CGM) has potential benefits for inpatients, especially for those critically ill with COVID-19, as it may reduce patient-provider contact and the risk of virus transmission.
  • A study was conducted using CGM (Dexcom G6) alongside standard glucose tests to evaluate its effectiveness in managing glycemic control for patients on IV insulin therapy.
  • Results indicated that CGM improved glycemic control and showed high accuracy when compared to point-of-care glucose measurements, suggesting it could safely replace traditional glucose testing methods in hospitals.
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The cross-border mobility of malaria cases poses an obstacle to malaria elimination programmes in many countries, including Nepal. Here, we develop a novel mathematical model to study how the imported malaria cases through the Nepal-India open-border affect the Nepal government's goal of eliminating malaria by 2026. Mathematical analyses and numerical simulations of our model, validated by malaria case data from Nepal, indicate that eliminating malaria from Nepal is possible if strategies promoting the absence of cross-border mobility, complete protection of transmission abroad, or strict border screening and isolation are implemented.

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Measles is one of the highly contagious human viral diseases. Despite the availability of vaccines, measles outbreak frequently occurs in many places, including Nepal, partly due to the lack of compliance with vaccination. In this study, we develop a novel transmission dynamics model to evaluate the effects of monitored vaccination programs to control and eliminate measles.

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Background And Aims: The DASH diet conveys protection against type 2 diabetes mellitus (T2D) Via plant-based and non-plant-based recommendations. Research has not identified which glucose homeostasis pathways are improved. We examined associations between adherence to a DASH diet and six glucose homeostasis traits, probing whether associations could be attributed to the plant-based (DASH-P) and/or non-plant based (DASH-NP) components.

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Article Synopsis
  • - Cardiovascular and cardiometabolic diseases can often be avoided and are mainly caused by unhealthy eating habits.
  • - Factors contributing to poor diets include inadequate access to nutritious foods, agricultural subsidies that don’t support healthy options, and aggressive marketing of unhealthy foods.
  • - To improve the nation's diet, we need better dietary guidelines, legislative reforms for agricultural subsidies and food advertising, and programs that promote plant-based eating.
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Insulin resistance and insufficient insulin secretion are well-recognized contributors to type 2 diabetes. A potential role of reduced insulin clearance has been suggested, but few studies have investigated the contribution of insulin clearance while simultaneously examining decreased insulin sensitivity and secretion. The goal of this study was to conduct such an investigation in a cohort of 353 non-Hispanic White and African American individuals recruited in the Microbiome and Insulin Longitudinal Evaluation Study (MILES).

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While most of the countries around the globe are combating the pandemic of COVID-19, the level of its impact is quite variable among different countries. In particular, the data from Nepal, a developing country having an open border provision with highly COVID-19 affected country India, has shown a biphasic pattern of epidemic, a controlled phase (until July 21, 2020) followed by an outgrown phase (after July 21, 2020). To uncover the effective strategies implemented during the controlled phase, we develop a mathematical model that is able to describe the data from both phases of COVID-19 dynamics in Nepal.

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Background Diagnostic testing in the ED increases the length of stay (LOS). Urinalysis testing is highlighted specifically as a source of delays. We aim to determine whether a triage-initiated urine specimen collection process decreases ED time to disposition (TTD) in ambulatory patients with abdominal pain.

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  • Pediatric integrative medicine is a new field in the U.S. that addresses common pediatric health issues and emphasizes overall patient well-being.
  • Initial research suggests that integrative treatments may effectively help with conditions like irritable bowel syndrome, chronic pain, headaches, and allergies in children.
  • This manuscript aims to showcase effective integrative treatments in pediatrics, detail the development of a specific program, summarize its early results, and identify challenges and success strategies.
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Background And Purpose: Patients with heart failure often experience cognitive deficits. The relationship between systolic function and cerebral gray matter injury is unclear.

Methods: An automated program SIENAX (v2.

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Purpose: To investigate the relationship between neuroretinal rim (NRR) differential light absorption (DLA, a measure of spectral absorption properties) and visual field (VF) sensitivity in primary open-angle glaucoma (POAG).

Methods: Patients diagnosed with (n = 22) or suspected of having (n = 7) POAG were imaged with a multispectral system incorporating a modified digital fundus camera, 250-W tungsten-halogen lamp, and fast-tuneable liquid crystal filter. Five images were captured sequentially within 1.

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Purpose: To describe different patterns of blinking in patients undergoing a visual field test and to establish whether the blink parameters are related to threshold variability.

Methods: Thirty-nine patients with diagnosed or suspected glaucoma were recruited to undertake a perimetric task twice. Blinks were detected with a video eye-tracker system that records at a sampling rate of 60 Hz.

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