Effect of Temperature Leaching Solution of Disposable Plastic Tableware on Intestinal Health of Adults

Studies have shown that disposable plastic tableware will cause harm to human health after heat exposure, which is closely related to the rapid development of modern society and economy and the accelerated pace of life. Most of the existing studies focused on the characterization of micro-nano plastic particles and organic pollutants such as bisphenol A and polycyclic aromatic hydrocarbons produced after thermal exposure of disposable plastic tableware, but did not pay sufficient attention to the potential relationship with individual health effects. In addition; Sporadic animal tests and molecular tests have verified the health hazards of disposable plastic tableware leaching solution. Based on the previous research results, we believe that the leaching solution of disposable plastic tableware at high temperature environment will disturb the intestinal flora structure, affect the intestinal metabolic profile, and produce adverse health outcomes for human intestinal health. This study intends to recruit healthy school students as research objects, and collect urine and stool samples of test subjects, in order to explore the effects of high-temperature leaching solution of disposable plastic tableware on intestinal health of adults.

Study Overview

• Status: Enrolling by invitation
• Conditions: Inflammation; Intestinal Dysfunction
• Intervention / Treatment: Other: hot purified water

Detailed Description

The method of single blind randomized controlled cross trial was adopted. A total of 80 healthy adults were recruited and divided into test group and control group according to the principle of randomization. During the trial period, the experimental group used a disposable plastic cup to drink a cup of hot water boiled in a hot kettle in the morning and in the evening (reduced to room temperature, about 300mL), while the control group also used a disposable plastic cup to drink room temperature water without heat exposure. The first phase lasted for 5 working weeks, and after a one-month washout period in the middle, the experimental group and the control group crossed. The second phase of the cross-over trial also lasted 5 workweeks. A total of four medical examinations were performed throughout the trial period, before and after the first and second trials. A check-up lasts half a day.

Health outcome indicators: height, weight, body composition analysis, saliva, blood pressure, blood, urine sample, stool sample indicators.

Urine, feces and blood samples were collected to detect the relevant indicators in order to explore the potential mechanism of the harm of heavy metals in the hot exposure leaching solution of disposable plastic tableware to human intestinal health.

• Study Type: Interventional
• Enrollment (Estimated): 80
• Phase: Not Applicable

Contacts and Locations

Study Locations

• China
  • Zhejiang
    • Hangzhou, Zhejiang, China, 310000
      • Zhejiang Chinese Medicine University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• .Healthy college students aged 18 to 35;
• .Subjects can receive the intervention in this study.

Exclusion Criteria:

• 1.Have been diagnosed with diabetes, ulcerative colitis, Crohn's disease, or an infectious disease;

  • Chemotherapy, radiation or surgery 3-6 months prior to sampling;
  • Abnormal bowel movements one week before sampling;
  • I was menstruating at the time of sampling;
  • In the past three months, the sample has taken probiotics and other related health products and dietary supplements.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Non-Randomized
• Interventional Model: Crossover Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: hot water; 300ml pure water cooled to room temperature in a kettle.	Other: hot purified water; Hot purified water,drink once a workday,almost 360mL.Buy from regular channels.
Placebo Comparator: normal temperature water; 300 ml pure water without any treatment	Other: hot purified water; Hot purified water,drink once a workday,almost 360mL.Buy from regular channels.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Forced Vital Capacity(FVC)	We plan to measure forced vital capacity (FVC) of lung function.	Baseline and after 4 weeks plants exposure in first stage, and after washout period, baseline and after 4weeks plants exposure in second stage
Blood Pressure(BP)	We plan to measure systolic blood pressure (SBP) and diastolic blood pressure (DBP)	Baseline and after 4 weeks plants exposure in first stage, and after washout period, baseline and after 4weeks plants exposure in second stage.

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Heart Rate Variability(HRV)	We plan to measure Heart Rate Variability (HRV).	Baseline and after 4 weeks plants exposure in first stage, and after washout period, baseline and after 4weeks plants exposure in second stage.

Other Outcome Measures

Outcome Measure	Measure Description	Time Frame
C-reactive protein(CRP)	We plan to measure serum concentrations of C-reactive protein(CRP)	Baseline and after 4 weeks plants exposure in first stage, and after washout period, baseline and after 4weeks plants exposure in second stage.

Collaborators and Investigators

• Sponsor: Xiang Zeng

Study record dates

Study Major Dates

• Study Start (Actual): March 24, 2024
• Primary Completion (Estimated): June 13, 2024
• Study Completion (Estimated): December 20, 2024

Study Registration Dates

• First Submitted: May 6, 2024
• First Submitted That Met QC Criteria: May 29, 2024
• First Posted (Actual): May 31, 2024

Study Record Updates

• Last Update Posted (Actual): May 31, 2024
• Last Update Submitted That Met QC Criteria: May 29, 2024
• Last Verified: May 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathologic Processes; Inflammation
• Other Study ID Numbers: 20240306-1

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No