1
|
Silveira NC, Balieiro LCT, Gontijo CA, Teixeira GP, Fahmy WM, Maia YCDP, Crispim CA. Association between sleep duration and quality with food intake, chrononutrition patterns, and weight gain during pregnancy. Br J Nutr 2024; 131:1413-1420. [PMID: 38178731 DOI: 10.1017/s0007114523002908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
To analyse the association between sleep duration and quality with food intake, chrononutrition patterns, and weight gain during pregnancy. A prospective cohort study was conducted with 100 pregnant women. Data collection occurred once during each gestational trimester. The assessment of sleep quality and duration was performed using the Pittsburgh Sleep Quality Index. Food intake was assessed using three 24-h recalls in each trimester. Body weight was measured during the three trimesters, and height was measured only once to calculate the BMI. Linear regression analyses were performed to associate sleep duration and quality with food consumption and weight gain variables. Longer sleep duration was associated with a later dinner in the first trimester (β = 0·228, P = 0·025) and earlier in the third trimester (β = -0·223, P = 0·026), in addition to a later morning snack in the second trimester (β = 0·315, P = 0·026). Worse sleep quality was associated with higher total energy intake (β = 0·243, P = 0·044), total fat (β = 0·291, P = 0·015) and the chrononutrition variables such as a higher number of meals (β = 0·252, P = 0·037), higher energetic midpoint (β = 0·243, P = 0·044) and shorter fasting time (β = -0·255, P = 0·034) in the third trimester. Sleep quality was also associated with a higher BMI in the first trimester of pregnancy (β = 0·420, P = < 0·001). Most of the associations found in the present study show that poor sleep is associated with higher energy and fat intake and higher BMI. Longer sleep duration was associated with a later dinner in early pregnancy and an earlier dinner in late pregnancy, as well as with a later morning snack in the second trimester of pregnancy.
Collapse
Affiliation(s)
- Noara Carvalho Silveira
- Chrononutrition Research Group (Cronutri), School of Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | | | - Cristiana Araújo Gontijo
- Chrononutrition Research Group (Cronutri), School of Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Gabriela Pereira Teixeira
- Chrononutrition Research Group (Cronutri), School of Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Walid Makin Fahmy
- Department of Obstetrics, Hospital and Municipal Maternity of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Yara Cristina de Paiva Maia
- Molecular Biology and Nutrition Research Group, School of Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Cibele Aparecida Crispim
- Chrononutrition Research Group (Cronutri), School of Medicine, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| |
Collapse
|
2
|
Pereira TDS, Spindola RH, Rabelo CABS, Silveira NC, Adorno MAT, Kunz A, Pires EC, Damianovic MHRZ. A predictive model for N 2O production in anammox-granular sludge reactors: Combined effects of nitrite/ammonium ratio and organic matter concentration. J Environ Manage 2021; 297:113295. [PMID: 34311258 DOI: 10.1016/j.jenvman.2021.113295] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/29/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
Once the use of anammox reactors has been increasing on a global scale, it is important to understand the mechanisms of N2O emissions and how to minimise the emissions by optimising the operating conditions. In this study, the influence of chemical oxygen demand (COD) (from 0 mgO2 L-1 to 100 mgO2 L-1) and nitrite/ammonium ratio from 0.79 to 2.21 (maintaining ammonium at 100 mgN L-1 and varying nitrite from 79 mgN L-1 to 221 mgN L-1) in the N2O emissions from anammox-granular sludge reactor was investigated in two steps. Step 1 consisted of batch tests, using central composite design, and Step 2, long-term operation of a 6.5 L continuous up-flow reactor. The results showed that the N2O emissions were minimized by controlling, in the influent, the NO2--N/NH4+-N ratio from 1.1 to 1.3 and maintaining the COD concentration below 100 mgO2 L-1. TN removal efficiencies were higher than 70% in all conditions tested".
Collapse
Affiliation(s)
- T D S Pereira
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, 13563-120, São Carlos, SP, Brazil.
| | - R H Spindola
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, 13563-120, São Carlos, SP, Brazil
| | - C A B S Rabelo
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, 13563-120, São Carlos, SP, Brazil
| | - N C Silveira
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, 13563-120, São Carlos, SP, Brazil
| | - M A T Adorno
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, 13563-120, São Carlos, SP, Brazil
| | - A Kunz
- Embrapa Suínos e Aves, 89715-899, Concórdia, SC, Brazil
| | - E C Pires
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, 13563-120, São Carlos, SP, Brazil
| | - M H R Z Damianovic
- Laboratory of Biological Processes, Department of Hydraulics and Sanitation, São Carlos School of Engineering, University of São Paulo, Av. João Dagnone, 1100, Jd. Santa Angelina, 13563-120, São Carlos, SP, Brazil
| |
Collapse
|