Publications by authors named "Mengjie Geng"

Background: Riboflavin, a water-soluble vitamin, is not synthesized in the human body. Hence, developing riboflavin carriers that can be retained in the gastrointestinal system for longer periods can facilitate riboflavin supplementation.

Results: The present study aimed to prepare a soy protein isolate (SPI)-κ-carrageenan composite gel-mediated riboflavin delivery model.

View Article and Find Full Text PDF

The advancement and utilization of functional foods hold the capacity to efficaciously enhance human nutrition and well-being. However, within the present epoch characterized by recurrent food safety and quality concerns, there exists a paucity of suitable food systems that are capable of concurrently amalgamating the merits of nutritional enrichment and high stability. Therefore, in this study, heteroprotein aggregates were synthesized with modified-soy lipophilic protein (SLP) and lysozyme (LY) as the main components.

View Article and Find Full Text PDF

Background: Co-existence of efficient transportation networks and geographic imbalance of medical resources greatly facilitated inter-city migration of patients of infectious diseases in China.

Methods: To characterize the migration patterns of major notifiable infectious diseases (NIDs) during 2016-2020 in China, we collected migratory cases, who had illness onset in one city but were diagnosed and reported in another, from the National Notifiable Infectious Disease Reporting System, and conducted a nationwide network analysis of migratory cases of major NIDs at the city (prefecture) level.

Findings: In total, 2,674,892 migratory cases of NIDs were reported in China during 2016-2020.

View Article and Find Full Text PDF
Article Synopsis
  • * From 2014 to 2019, over 5 million influenza cases were analyzed, showing that increases in urbanization were connected to higher influenza rates, particularly impacting regions in southern China.
  • * The findings suggest that urbanization not only raises local influenza incidence but also has spillover effects on nearby areas; thus, local governments should enhance healthcare access and collaborate on influenza prevention strategies across cities.
View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates how temperature variability (TV) affects influenza rates in China, using data from 339 cities collected between 2014 and 2019, and examines the role of PM levels in modifying this relationship.
  • - Results show that a 1°C increase in temperature variability over the past week is associated with a 3.3% rise in influenza cases, potentially accounting for nearly 15% of total cases.
  • - The research found that higher PM levels amplify the risk of influenza, with particularly vulnerable groups being females and individuals over 65, especially during the cold season and in northern regions, suggesting that public health strategies should consider both TV and PM exposure.
View Article and Find Full Text PDF
Article Synopsis
  • The study focused on creating layer-by-layer self-assembled liposomes using sodium alginate and chitosan to co-encapsulate folic acid and vitamin E while examining their structure, stability, and digestive behavior.
  • Results showed that liposomes encapsulating both nutrients had a larger particle size and a more uniform distribution compared to those without, with the 3:7 mass ratio achieving the highest encapsulation efficiency (79.54% for folic acid and 81.57% for vitamin E).
  • The liposomes effectively protected folic acid and vitamin E from degradation in harsh conditions and enhanced their release in a simulated gastrointestinal environment, highlighting their potential for creating effective nutrient delivery systems.
View Article and Find Full Text PDF

Background: Studies have reported the adverse effects of cold events on influenza. However, the role of critical factors, such as characteristics of cold spells, and regional variations remain unresolved.

Objective: We aimed to systematically evaluate the association between cold spells and influenza incidence in mainland China.

View Article and Find Full Text PDF
Article Synopsis
  • The study evaluates the trends of HIV/AIDS, gonorrhea, and syphilis among Chinese children and adolescents (6-22 years old) from 2013 to 2021, analyzing data from over 614,000 reported cases.
  • While the spread of HIV/AIDS has stabilized, gonorrhea and syphilis cases have risen significantly, particularly among students aged 13-15, indicating a concerning public health trend.
  • The research highlights that areas with less sexual health education have higher STI rates, and suggests that economic conditions also contribute to these disparities, pointing to a need for targeted public health strategies to address the issue.
View Article and Find Full Text PDF
Article Synopsis
  • * Higher SA concentrations resulted in larger, denser beads with improved textures, while those made with lower SA concentrations broke apart during digestion in intestinal fluid.
  • * The encapsulated vitamins showed high bioaccessibility, with vitamin C at 90.20% and vitamin E at 95.19%, indicating effective release and potential nutritional benefits.
View Article and Find Full Text PDF
Article Synopsis
  • The study examines the impact of the COVID-19 pandemic on the incidence and mortality rates of 42 infectious diseases among children and adolescents in China, comparing these to levels before the pandemic.
  • Utilizing the Notifiable Infectious Disease Surveillance System, researchers analyzed data from individuals aged 5-22 from 2018 to 2021, focusing on various categories of infectious diseases and their trends during different phases of the pandemic.
  • Findings reveal a sharp decline in infectious disease cases during the pandemic year (2020) followed by a rebound in 2021, with notable differences between disease types and a consistent decrease in mortality over the four years studied.
View Article and Find Full Text PDF
Article Synopsis
  • * Among various PM components, sulfate was found to have the strongest association with increased infectious disease risk, with a 2.72% rise in incidence per interquartile range increase, particularly affecting respiratory diseases like influenza and tuberculosis.
  • * The findings suggest that reducing PM levels could significantly lower the incidence of various infectious diseases, emphasizing the need for stricter air quality standards and targeted health interventions in China.
View Article and Find Full Text PDF

Background: An accelerated epidemiological transition, spurred by economic development and urbanization, has led to a rapid transformation of the disease spectrum. However, this transition has resulted in a divergent change in the burden of infectious diseases between urban and rural areas. The objective of our study was to evaluate the long-term urban-rural disparities in infectious diseases among children, adolescents, and youths in China, while also examining the specific diseases driving these disparities.

View Article and Find Full Text PDF

Background: An accelerated epidemiological transition, economic development and urbanization have brought rapid reductions but a potential disparity in infectious diseases burdens in-school and out-of-school children, adolescents, and youths in China. This paper assesses the disparity in spectrum of infectious diseases between two groups, and described disparity's variation by age, year and province, and determined the priority diseases.

Methods: A total of 7,912,274 new incident cases (6,159,021 in school and 1,753,253 out of school) aged 6-21 years across 43 notifiable infectious diseases have been collected based on China's Notifiable Infectious Disease Surveillance System from 2013 to 2021.

View Article and Find Full Text PDF
Article Synopsis
  • Acute diarrhea with fever may indicate a more severe condition, and this study aimed to analyze the characteristics and pathogens involved in febrile diarrhea across different age groups in China between 2011 and 2020.
  • A nationwide survey of 146,296 acute diarrhea patients showed that 18.6% had fever, with the highest incidence (24.2%) in children under 5, who also had a greater prevalence of viral pathogens.
  • The study found notable differences in pathogen associations with fever, revealing that nontyphoidal Salmonella was more common in febrile patients across all ages, while rotavirus A and diarrheagenic E. coli were more strongly linked to fever in specific age groups.
View Article and Find Full Text PDF

This study aimed to explore the interaction mechanism between soybean lipophilic protein (LP) and vitamin B and the potential of LP as a vitamin B carrier. The results of spectroscopy indicated that the interaction between vitamin B and LP changed the conformation of LP and exposed hydrophobic groups largely. The results of molecular docking revealed that vitamin B interacted with LP through a hydrophobic pocket embedded on the surface of LP.

View Article and Find Full Text PDF
Article Synopsis
  • A study focused on a delivery system made from soy protein isolate (SPI) and pectin to encapsulate vitamins C and E in different pH conditions (neutral and acidic).
  • Results showed that the SPI-vitamin-pectin complex performed better in acidic conditions, exhibiting larger particle sizes and higher efficiency in encapsulating vitamin E compared to neutral conditions.
  • The combined effects of vitamins C and E were found to enhance antioxidant properties significantly, indicating their potential for creating functional nutraceutical products.
View Article and Find Full Text PDF

In this study, a ternary conjugate was prepared by covalent bonding of protein, polysaccharide, and polyphenol via ultrasound and the Maillard reaction. Subsequently, the β-carotene nanoemulsion was prepared with the soy protein isolate-(-)-epigallocatechin gallate-maltose (SPI-EGCG-maltose) conjugate as the emulsifiers via ultrasound. The SPI-EGCG-maltose conjugate showed superior solubility, emulsification and foaming properties at 4 h reaction time.

View Article and Find Full Text PDF

Introduction: Numerous studies have reported the modification of particulate matters (PMs) on the association between cold temperature and health. However, it remains uncertain whether the modification effect may vary by size of PMs, especially in Shandong Province, China where the disease burdens associated with cold temperature and PMs are both substantial. This study aimed to examine various interactive effects of cold exposure and ambient PMs with diameters ≤1/2.

View Article and Find Full Text PDF

The effects of the preparation method (mixing, chemical polymerization, or ultrasound treatment) on the structure and functional properties of soy protein isolate-(-)-epigallocatechin-3-gallate (SPI-EGCG) complexes were examined. The mixing treated SPI-EGCG samples (M-SE) were non-covalently linked, while the chemical polymerization and ultrasound treated SPI-EGCG samples (C-SE and U-SE, respectively) were bound covalently. The covalent binding of EGCG with protein improved the molecular weight and changed the structures of the SPI by decreasing the α-helix content.

View Article and Find Full Text PDF

Background: To quantitatively assess the impact of the onset-to-diagnosis interval (ODI) on severity and death for coronavirus disease 2019 (COVID-19) patients.

Methods: This retrospective study was conducted based on the data on COVID-19 cases of China over the age of 40 years reported through China's National Notifiable Infectious Disease Surveillance System from February 5, 2020 to October 8, 2020. The impacts of ODI on severe rate (SR) and case fatality rate (CFR) were evaluated at individual and population levels, which was further disaggregated by sex, age and geographic origin.

View Article and Find Full Text PDF

Background: Insoluble dietary fiber (IDF) has beneficial physiological effects, such as the promoting of intestinal peristalsis, the improving of intestinal flora, and the absorbing of some harmful substances. Okara, a byproduct of soybean processing, is a potential source of IDF. But the larger particle size and poor water solubility of okara IDF have adverse effects on sensory properties and functional characteristics.

View Article and Find Full Text PDF

Background: The emulsifying, antioxidant and foaming properties of soy protein isolate hydrolysates (SPH) can be improved by the addition of gum arabic (GA). We investigated the effects of different hydrolysis conditions on the complexation of SPH and GA, and the effects of the complex on the properties of emulsions.

Results: Fluorescence spectroscopy showed that the addition of GA had a stronger effect on bromelain and pepsin hydrolysates than trypsin hydrolysate, and therefore had a higher binding constant (K ) and a larger number of binding sites (n).

View Article and Find Full Text PDF

Background: Acute meningitis or encephalitis (AME) results from a neurological infection causing high case fatality and severe sequelae. AME lacked comprehensive surveillance in China.

Methods: Nation-wide surveillance of all-age patients with AME syndromes was conducted in 144 sentinel hospitals of 29 provinces in China.

View Article and Find Full Text PDF

Nationwide nonpharmaceutical interventions (NPIs) have been effective at mitigating the spread of the novel coronavirus disease (COVID-19), but their broad impact on other diseases remains under-investigated. Here we report an ecological analysis comparing the incidence of 31 major notifiable infectious diseases in China in 2020 to the average level during 2014-2019, controlling for temporal phases defined by NPI intensity levels. Respiratory diseases and gastrointestinal or enteroviral diseases declined more than sexually transmitted or bloodborne diseases and vector-borne or zoonotic diseases.

View Article and Find Full Text PDF