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Lin Y, Zhang N, Zhang J, Lu J, Liu S, Ma G. Seasonality Affects Fluid Intake Behaviors among Young Adults in Hebei, China. Nutrients 2024; 16:1542. [PMID: 38892476 PMCID: PMC11173941 DOI: 10.3390/nu16111542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/15/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND Evidence on the association between environmental factors and fluid intake behavior remains limited. The current study aims to explore seasonal variations in fluid intake behaviors among young adults in China. METHODS A prospective cohort of 79 healthy young adults (43 males and 36 females) aged 19-21 in Hebei, China, was assessed for fluid intake behaviors for four seasons. For each assessment, the participants' anthropometric measurements were collected. Temperature and humidity on survey days were measured. Participants' total drinking fluid (TDF) was recorded using a self-administrative 7 d, 24 h fluid intake questionnaire. To calculate water from food (WFF), we weighed all foods consumed by participants. Duplicates of consumed food samples were collected to measure the water content via the drying method. RESULTS The mean total water intake (TWI) was 2761 ± 881, 2551 ± 845, 2210 ± 551, and 1989 ± 579 for spring, summer, fall, and winter, respectively (F(2.37) = 42.29, p < 0.001). The volume and proportion of TWI from TDF and WFF varied across the four seasons. The volume of WFF in spring (1361 ± 281, F(2.61) = 17.21, p < 0.001) and TDF in summer (1218 ± 502, F(2.62) = 9.36, p < 0.001) was among the highest, while participants' fluid intake behaviors in spring and summer were less distinct than the other pairwise comparisons. A moderate association was found between outdoor temperature and TDF (r = 0.53, p < 0.01). Different general estimating equations suggested that gender, seasonality, outdoor temperature, differences in indoor and outdoor temperature, and mean temperature were independent factors of TDF. An interactive effect was found for gender and temperature, showing that the expected TDF of males may increase more as the temperature climbs. CONCLUSIONS Gender, seasonality, and air temperature could significantly affect fluid intake behaviors, including the amount and type of fluid intake. However, the independent effect of BMI and humidity remains unclear.
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Affiliation(s)
- Yongwei Lin
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (Y.L.); (J.Z.); (J.L.)
| | - Na Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (Y.L.); (J.Z.); (J.L.)
- Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, China
| | - Jianfen Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (Y.L.); (J.Z.); (J.L.)
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Junbo Lu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (Y.L.); (J.Z.); (J.L.)
- National Center for Occupational Safety and Health, Beijing 102308, China
| | - Shufang Liu
- School of Public Health, Hebei University Health Science Center, Baoding 071000, China
| | - Guansheng Ma
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing 100191, China; (Y.L.); (J.Z.); (J.L.)
- Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing 100191, China
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Timpka S, Melander O, Engström G, Elmståhl S, Nilsson PM, Lind L, Pihlsgård M, Enhörning S. Short-term association between outdoor temperature and the hydration-marker copeptin: a pooled analysis in five cohorts. EBioMedicine 2023; 95:104750. [PMID: 37556945 PMCID: PMC10432996 DOI: 10.1016/j.ebiom.2023.104750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Whereas outdoor temperature is linked to both mortality and hydration status, the hormone vasopressin, measured through the surrogate copeptin, is a marker of cardiometabolic risk and hydration. We recently showed that copeptin has a seasonal pattern with higher plasma concentration in winter. Here, we aimed to investigate the association between outdoor temperature and copeptin. METHODS Copeptin was analysed in fasting plasma from five cohorts in Malmö, Sweden (n = 26,753, 49.7% men, age 18-86 years). We utilized a multivariable adjusted non-linear spline model with four knots to investigate the association between short-term temperature (24 h mean apparent) and log copeptin z-score. FINDINGS We found a distinct non-linear association between temperature and log copeptin z-score, with both moderately low and high temperatures linked to higher copeptin concentration (p < 0.0001). Between 0 °C and nadir at the 75th temperature percentile (corresponding to 14.3 °C), log copeptin decreased 0.13 z-scores (95% CI 0.096; 0.16), which also inversely corresponded to the increase in z-score log copeptin between the nadir and 21.3 °C. INTERPRETATION The J-shaped association between short-term temperature and copeptin resembles the J-shaped association between temperature and mortality. Whereas the untangling of temperature from other seasonal effects on hydration warrants further study, moderately increased water intake constitutes a feasible intervention to lower vasopressin and might mitigate adverse health effects of both moderately cold and hot outdoor temperatures. FUNDING Swedish Research Council, Å Wiberg, M Stephen, A Påhlsson, Crafoord and Swedish Heart-Lung Foundations, Swedish Society for Medical Research and Swedish Society of Medicine.
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Affiliation(s)
- Simon Timpka
- Perinatal and Cardiovascular Epidemiology, Lund University Diabetes Centre, Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden; Department of Obstetrics and Gynecology, Skåne University Hospital, Malmö, Sweden
| | - Olle Melander
- Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden; Department of Internal Medicine, Skåne University Hospital, Malmö, Sweden
| | - Gunnar Engström
- Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden
| | - Sölve Elmståhl
- Department of Clinical Sciences in Malmö, Division of Geriatric Medicine, Lund University, Malmö, Sweden
| | - Peter M Nilsson
- Internal Medicine - Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Lars Lind
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Mats Pihlsgård
- Perinatal and Cardiovascular Epidemiology, Lund University Diabetes Centre, Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden
| | - Sofia Enhörning
- Perinatal and Cardiovascular Epidemiology, Lund University Diabetes Centre, Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden; Department of Internal Medicine, Skåne University Hospital, Malmö, Sweden.
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Karamaria S, Dossche L, Delens V, Degraeuwe E, Raes A, Mauel R, Vande Walle C, Everaert K, Vande Walle J. Circadian rhythm of water and solute excretion in nocturnal enuresis. Pediatr Nephrol 2023; 38:771-779. [PMID: 35748940 DOI: 10.1007/s00467-022-05645-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/11/2022] [Accepted: 05/27/2022] [Indexed: 01/19/2023]
Abstract
BACKGROUND Nocturnal polyuria (NP) due to a suppressed vasopressin circadian rhythm is a well-documented pathogenetic mechanism in enuresis, mainly studied in monosymptomatic enuresis. A substantial percentage of patients do not respond to desmopressin. This suggests that NP may not only be related to vasopressin, but that other kidney components play a role. Solute handling and osmotic excretion have been investigated in the past, especially in refractory patients. Nevertheless, data in treatment-naïve populations with information on timing overnight are sparse. This study aims to investigate the diuresis and solute excretion in treatment-naïve patients with or without NP, with emphasis on circadian rhythms. METHODS Retrospective analysis of 403 treatment-naïve children 5-18 years with severe enuresis (> 8 nights/2 weeks). Circadian rhythms were evaluated by a 24-h urine collection in 8 timed portions (4 day, 4 nighttime) at in-home settings. Urine volume, osmolality, and creatinine were measured. Patients were subdivided into three groups according to nocturnal diuresis (ND) and Expected Bladder Capacity (EBCage) ratio: (a) < 100%, (b) 100-129%, (c) > 130%. RESULTS All groups maintained circadian rhythm for diuresis and diuresis rates. Patients with higher ND (100-129% and > 130% EBCage) had higher daytime volumes and less pronounced circadian rhythm. In the ND group > 130% EBCage, the ND rate was higher during the first night collection and osmotic excretion was significantly higher overnight. CONCLUSIONS Overall 24-h fluid intake (reflected by 24-h diuresis) and nutritional intake (24-h osmotic excretion) might play a role in enuresis. Increased diuresis rate early in the night can be important in some patients, whereas the total night volume can be important in others. A higher resolution version of the Graphical abstract is available as Supplementary Information.
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Affiliation(s)
- Sevasti Karamaria
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Lien Dossche
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Vincent Delens
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Eva Degraeuwe
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Ann Raes
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Reiner Mauel
- Department of Pediatric Intensive Care, Brussels University Hospital, Brussels, Belgium
| | | | - Karel Everaert
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - Johan Vande Walle
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium.
- Department of Pediatric Nephrology, Ghent University Hospital, Ghent, Belgium.
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Fan L, Wu P, Li X, Tie L. Aquaporins in Cardiovascular System. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1398:125-135. [PMID: 36717490 DOI: 10.1007/978-981-19-7415-1_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Recent studies have shown that aquaporins (AQPs) are involved in the regulation of cardiovascular function and the development of related diseases, especially in cerebral ischemia, congestive heart failure, hypertension, and angiogenesis. Therefore, further studies are needed to elucidate the mechanism accounting for the association between AQPs and vascular function-related diseases, which may lead to novel approaches to the prevention and treatment of those diseases. Here we will discuss the expression and physiological roles of AQPs in vascular tissues and summarize recent progress in the research on AQPs related cardiovascular diseases.
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Affiliation(s)
- Lu Fan
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Pin Wu
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China
| | - Xuejun Li
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China.
| | - Lu Tie
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, China.
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Enhörning S, Melander O, Engström G, Elmståhl S, Lind L, Nilsson PM, Pihlsgård M, Timpka S. Seasonal variation of vasopressin and its relevance for the winter peak of cardiometabolic disease: A pooled analysis of five cohorts. J Intern Med 2022; 292:365-376. [PMID: 35340071 PMCID: PMC7613412 DOI: 10.1111/joim.13489] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Vasopressin concentration is typically higher at night, during stress, and in males, but readily lowered by water intake. Vasopressin is also a causal candidate for cardiometabolic disease, which shows seasonal variation. OBJECTIVE To study whether vasopressin concentration varies by season in a temperate climate. METHODS The vasopressin surrogate marker copeptin was analyzed in fasting plasma samples from five population-based cohorts in Malmö, Sweden (n = 25,907, 50.4% women, age 18-86 years). We investigated seasonal variation of copeptin concentration and adjusted for confounders in sinusoidal models. RESULTS The predicted median copeptin level was 5.81 pmol/L (7.18 pmol/L for men and 4.44 pmol/L for women). Copeptin exhibited a distinct seasonal pattern with a peak in winter (mid-February to mid-March) and nadir in late summer (mid-August to mid-September). The adjusted absolute seasonal variation in median copeptin was 0.62 pmol/L (95% confidence interval [CI] 0.50; 0.74, 0.98 pmol/L [95% CI 0.73; 1.23] for men and 0.46 pmol/L [95% CI 0.33; 0.59] for women). The adjusted relative seasonal variation in mean log copeptin z-score was 0.20 (95% CI 0.17; 0.24, 0.18 [95% CI 0.14; 0.23] in men and 0.24 [95% CI 0.19; 0.29] in women). The observed seasonal variation of copeptin corresponded to a risk increase of 4% for incident diabetes mellitus and 2% for incident coronary artery disease. CONCLUSION The seasonal variation of the vasopressin marker copeptin corresponds to increased disease risk and mirrors the known variation in cardiometabolic status across the year. Moderately increased water intake might mitigate the winter peak of cardiometabolic disease.
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Affiliation(s)
- Sofia Enhörning
- Perinatal and Cardiovascular Epidemiology, Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden.,Department of Internal Medicine, Skåne University Hospital, Malmö, Sweden
| | - Olle Melander
- Department of Internal Medicine, Skåne University Hospital, Malmö, Sweden.,Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden
| | - Gunnar Engström
- Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden
| | - Sölve Elmståhl
- Department of Clinical Sciences in Malmö, Division of Geriatric Medicine, Lund University, Malmö, Sweden
| | - Lars Lind
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Peter M Nilsson
- Internal Medicine-Epidemiology, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Mats Pihlsgård
- Perinatal and Cardiovascular Epidemiology, Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden
| | - Simon Timpka
- Perinatal and Cardiovascular Epidemiology, Department of Clinical Sciences in Malmö, Lund University, Malmö, Sweden.,Department of Obstetrics and Gynecology, Skåne University Hospital, Malmö, Sweden
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