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Muchira JM, Mogos MF, Park C, Logan J, Piano MR. A Mother-Child Dyadic Approach to Evaluating Subclinical Cardiovascular Disease in Young Children: A Feasibility Study. J Cardiovasc Nurs 2024; 39:307-317. [PMID: 36066587 DOI: 10.1097/jcn.0000000000000944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Cardiovascular (CV) risk factors can be transmitted from mothers to their children. However, it is challenging to measure and identify subclinical CV risk in young children using traditional CV risk methods and metrics. OBJECTIVE The purpose of this study was to determine the feasibility of recruiting mother-child dyads and measuring arterial stiffness (pulse wave velocity, augmentation index/pressure), blood pressure (BP), BP circadian pattern, specifically nocturnal BP dipping, and CV health metrics in mothers and in children aged 1 to 5 years. METHODS All BP and arterial stiffness measures were obtained using the noninvasive automated oscillometric Mobil-O-Graph device. Also measured were blood cholesterol level; glucose level; body mass index (BMI); and smoking, diet, and physical activity history. Descriptive statistics were used for assessing recruitment feasibility and Pearson correlations for mother-child associations. RESULTS Thirty-five mother-child dyads completed the protocol. Recruitment reach was 89% and retention rate was 80%. Mothers were 34.3 ± 5.4 years old with a mean systolic BP (SBP) of 114.6 ± 9.5 mm Hg and BMI of 26.0 ± 6.5. Children were 3 ± 1.4 years old with a mean SBP of 103.3 ± 9.4 mm Hg and BMI z -scores of -0.3 ± 1.5. Arterial stiffness parameters were within normal ranges for mothers and children. Twenty-three percent of mothers did not exhibit nocturnal dipping (<10% decrease between day and nighttime SBP). Maternal SBP was positively correlated with child BMI z -scores ( r = 0.42, P = .022) as well as mother-child augmentation pressure ( r = 0.51, P = .010). CONCLUSIONS Our findings support using a mother-child approach and novel noninvasive approaches to assess and target CV risk in mothers and their young children.
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Pieczyńska-Zając JM, Malinowska A, Łagowska K, Leciejewska N, Bajerska J. The effects of time-restricted eating and Ramadan fasting on gut microbiota composition: a systematic review of human and animal studies. Nutr Rev 2024; 82:777-793. [PMID: 37528052 PMCID: PMC11082590 DOI: 10.1093/nutrit/nuad093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023] Open
Abstract
CONTEXT It is well known that the microbiome undergoes cyclical diurnal rhythms. It has thus been hypothesized that meal timing may affect gut microbial composition, function, and host health. OBJECTIVE This review aims to examine the effects of time-restricted eating (TRE) and Ramadan fasting (RF) on the composition of the gut microbiota in animal and human studies. The associations between composition of microbiota and host metabolic parameters are also examined. DATA SOURCES A search was performed on the PubMed, Cochrane, Scopus, and Web of Science databases up to December 31, 2022. The search strategy was performed using the Medical Subject Heading (MeSH) terms "intermittent fasting" and "gastrointestinal microbiome" and the key words "Ramadan fasting" and "microbes." DATA EXTRACTION Seven human studies (4 TRE and 3 RF) and 9 animal studies (7 TRE, 2 RF-like) were retrieved. DATA ANALYSIS TRE and RF in human studies lead to an increase in gut microbial community alpha-diversity. In animal studies (both TRE and RF-like), fasting is not associated with improved alpha-diversity, but enhancement of microbial fluctuation is observed, compared with high-fat diet ad libitum groups. Within Firmicutes and Bacteroidetes phyla, no specific direction of changes resulting from fasting are observed in both animals and human. After TRE or RF, a greater abundance of the Faecalibacterium genus is observed in human studies; changes in Lactobacillus abundance are found in animal studies; and increases in Akkermansia are seen both in humans and in animals fed a feed-pellet diet. Only 2 human studies show a beneficial correlation between microbiota changes and host metabolic (HDL cholesterol) or anthropometric parameters (body mass index). CONCLUSIONS These findings support the importance of both regimens in improving the gut microbiota composition. However, based on results of animal studies, it can be suggested that diet remains the essential factor in forming the microbiota's environment. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration no. CRD42021278918.
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Affiliation(s)
| | - Anna Malinowska
- Laboratory of Microbiology, Wageningen University and Research, Wageningen, The Netherlands
| | - Karolina Łagowska
- Department of Human Nutrition and Dietetics, Poznań University of Life Sciences, Poznań, Poland
| | - Natalia Leciejewska
- Department of Physiology, Biochemistry, and Biostructure of Animals, Poznań University of Life Sciences, Poznań, Poland
| | - Joanna Bajerska
- Department of Human Nutrition and Dietetics, Poznań University of Life Sciences, Poznań, Poland
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Rowland SN, James LJ, O'Donnell E, Bailey SJ. Influence of acute dietary nitrate supplementation timing on nitrate metabolism, central and peripheral blood pressure and exercise tolerance in young men. Eur J Appl Physiol 2024; 124:1381-1396. [PMID: 38040982 PMCID: PMC11055761 DOI: 10.1007/s00421-023-05369-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 11/08/2023] [Indexed: 12/03/2023]
Abstract
PURPOSE Dietary nitrate (NO3-) supplementation can lower systolic blood pressure (SBP) and improve exercise performance. Salivary flow rate (SFR) and pH are key determinants of oral NO3- reduction and purported to peak in the afternoon. We tested the hypotheses that NO3--rich beetroot juice (BR) would increase plasma [nitrite] ([NO2-]), lower SBP and improve exercise performance to a greater extent in the afternoon (AFT) compared to the morning (MORN) and evening (EVE). METHOD Twelve males completed six experimental visits in a repeated-measures, crossover design. NO3--depleted beetroot juice (PL) or BR (~ 13 mmol NO3-) were ingested in the MORN, AFT and EVE. SFR and pH, salivary and plasma [NO3-] and [NO2-], brachial SBP and central SBP were measured pre and post supplementation. A severe-intensity exercise tolerance test was completed to determine cycling time to exhaustion (TTE). RESULTS There were no between-condition differences in mean SFR or salivary pH. The elevation in plasma [NO2-] after BR ingestion was not different between BR-MORN, BR-AFT and BR-EVE. Brachial SBP was unchanged following BR supplementation in all conditions. Central SBP was reduced in BR-MORN (- 3 ± 4 mmHg), BR-AFT (- 4 ± 3 mmHg), and BR-EVE (- 2 ± 3 mmHg), with no differences between timepoints. TTE was not different between BR and PL at any timepoint. CONCLUSION Acute BR supplementation was ineffective at improving TTE and brachial SBP and similarly effective at increasing plasma [NO2-] and lowering central SBP across the day, which may have implications for informing NO3- supplementation strategies.
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Affiliation(s)
- Samantha N Rowland
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK
| | - Lewis J James
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK
| | - Emma O'Donnell
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK
| | - Stephen J Bailey
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK.
- Department of Cardiovascular Science, University of Leicester, Leicester, UK.
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Zhao H, Li Z, Yan M, Ma L, Dong X, Li X, Zhang H, Li P. Irbesartan ameliorates diabetic kidney injury in db/db mice by restoring circadian rhythm and cell cycle. J Transl Int Med 2024; 12:157-169. [PMID: 38799791 PMCID: PMC11117442 DOI: 10.2478/jtim-2022-0049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024] Open
Abstract
Background and Objectives Irbesartan has been widely used in the clinical treatment of diabetic kidney disease (DKD). However, the molecular mechanism of its delay of DKD disease progression has not been fully elucidated. The aim of the present study was to investigate the mechanism of irbesartan in the treatment of DKD. Materials and Methods C57BL/KsJ db/db mice were randomly divided into the model group and irbesartan-treated group. After treatment with irbesartan for 12 weeks, the effects on blood glucose, body weight, 24-h urinary albumin, and renal injuries were evaluated. Microarray was used to determine the differentially expressed genes (DEGs) in the renal cortex of mice. |Log FC| <0.5 and false discovery rate (FDR) <0.25 were set as the screening criteria. Kyoto Encyclopedia of Genes and Genomes (KEGG), gene ontology (GO), protein-protein interaction (PPI) network and modules, and microRNA (miRNA)-DEGs network analysis were applied to analyze the DEGs. Furthermore, quantitative real-time polymerase chain reaction (qRT-PCR) was used to validate the results of microarray. Results The present study demonstrated irbesartan could significantly improve the renal function in db/db mice through decreasing 24-h urinary albumin and alleviating the pathological injury of kidney. Irbesartan may affect the expression of numerous kidney genes involved in circadian rhythm, cell cycle, micoRNAs in cancer, and PI3K-AKT signaling pathway. In the miRNA-DEGs network, miR-1970, miR-703, miR-466f, miR-5135, and miR-132-3p were the potential targets for irbesartan treatment. The validation test confirmed that key genes regulating circadian rhythm (Arntl, Per3, and Dbp) and cell cycle (Prc1, Ccna2, and Ccnb2) were restored in db/db mice on treatment with Irbesartan. Conclusion Generally, irbesartan can effectively treat DKD by regulating the circadian rhythm and cell cycle. The DEGs and pathways identified in the study will provide new insights into the potential mechanisms of irbesartan in the treatment of DKD.
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Affiliation(s)
- Hailing Zhao
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Zhiguo Li
- The Hebei Key Lab for Organ Fibrosis, the Hebei Key Lab for Chronic Disease, School of Public Health, International Science and Technology Cooperation Base of Geriatric Medicine, North China University of Science and Technology, Tangshan063210, Hebei Province, China
| | - Meihua Yan
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Liang Ma
- Clinical Laboratory, China–Japan Friendship Hospital, Beijing10029, China
| | - Xi Dong
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Xin Li
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Haojun Zhang
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Ping Li
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
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Mangini C, Zarantonello L, Formentin C, Giusti G, Domenie ED, Ruggerini D, Costa R, Skene DJ, Basso D, Battagliarin L, Di Bella A, Angeli P, Montagnese S. Managing Circadian Disruption due to Hospitalization: A Pilot Randomized Controlled Trial of the CircadianCare Inpatient Management System. J Biol Rhythms 2024; 39:183-199. [PMID: 38153134 DOI: 10.1177/07487304231213916] [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] [Indexed: 12/29/2023]
Abstract
The objective of the present study was to test the effects of an inpatient management system (CircadianCare) aimed at limiting the negative impact of hospitalization on sleep by enhancing circadian rhythmicity. Fifty inpatients were randomized to either CircadianCare (n = 25; 18 males, 62.4 ± 1.9 years) or standard of care (n = 25; 14 males, 64.5 ± 2.3 years). On admission, all underwent a full sleep-wake evaluation; they then completed daily sleep diaries and wore an actigraph for the whole length of hospitalization. On days 1 (T0), 7 (T1), and 14 (T2, if still hospitalized), salivary melatonin for dim light melatonin onset (DLMO) and 24-h skin temperature were recorded. In addition, environmental noise, temperature, and illuminance were monitored. Patients in the CircadianCare arm followed 1 of 3 schedules for light/dark, meal, and physical activity timings, based on their diurnal preference/habits. They wore short-wavelength-enriched light-emitting glasses for 45 min after awakening and short-wavelength light filter shades from 18:00 h until sleep onset. While the first, primary registered outcome (reduced sleep-onset latency on actigraphy or diary) was not met, based on sleep diaries, there was a trend (0.05 < p < 0.1) toward an advance in bedtime for CircadianCare compared to standard of care patients between T0 and T1. Similarly, DLMO time significantly advanced in the small group of patients for whom it could be computed on both occasions, with untreated ones starting from earlier baseline values. Patients sleeping near the window had significantly higher sleep efficiency, regardless of treatment arm. As noise fluctuation increased, so did the number of night awakenings, regardless of treatment arm. In conclusion, the CircadianCare management system showed positive results in terms of advancing sleep timing and the circadian rhythm of melatonin. Furthermore, our study identified a combination of environmental noise and lighting indices, which could be easily modulated to prevent hospitalization-related insomnia.
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Affiliation(s)
- Chiara Mangini
- Department of Medicine, University of Padova, Padova, Italy
| | | | | | - Gianluca Giusti
- Chronobiology Section, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | | | | | - Rodolfo Costa
- Chronobiology Section, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- Institute of Neuroscience, National Research Council, Padova, Italy
| | - Debra J Skene
- Chronobiology Section, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Daniela Basso
- Department of Medicine, University of Padova, Padova, Italy
| | - Lisa Battagliarin
- Department of Industrial Engineering, University of Padova, Padova, Italy
- Iuav University of Venice, Venice, Italy
| | - Antonino Di Bella
- Department of Industrial Engineering, University of Padova, Padova, Italy
| | - Paolo Angeli
- Department of Medicine, University of Padova, Padova, Italy
| | - Sara Montagnese
- Department of Medicine, University of Padova, Padova, Italy
- Chronobiology Section, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
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Zhao H, Li Z, Yan M, Ma L, Dong X, Li X, Zhang H, Li P. Irbesartan ameliorates diabetic kidney injury in db/db mice by restoring circadian rhythm and cell cycle. J Transl Int Med 2024; 12:157-169. [PMID: 38779121 PMCID: PMC11107183 DOI: 10.2478/jtim-2023-0049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024] Open
Abstract
Background and Objectives Irbesartan has been widely used in the clinical treatment of diabetic kidney disease (DKD). However, the molecular mechanism of its delay of DKD disease progression has not been fully elucidated. The aim of the present study was to investigate the mechanism of irbesartan in the treatment of DKD. Materials and Methods C57BL/KsJ db/db mice were randomly divided into the model group and irbesartan-treated group. After treatment with irbesartan for 12 weeks, the effects on blood glucose, body weight, 24-h urinary albumin, and renal injuries were evaluated. Microarray was used to determine the differentially expressed genes (DEGs) in the renal cortex of mice. |Log FC| <0.5 and false discovery rate (FDR) <0.25 were set as the screening criteria. Kyoto Encyclopedia of Genes and Genomes (KEGG), gene ontology (GO), protein-protein interaction (PPI) network and modules, and microRNA (miRNA)-DEGs network analysis were applied to analyze the DEGs. Furthermore, quantitative real-time polymerase chain reaction (qRT-PCR) was used to validate the results of microarray. Results The present study demonstrated irbesartan could significantly improve the renal function in db/db mice through decreasing 24-h urinary albumin and alleviating the pathological injury of kidney. Irbesartan may affect the expression of numerous kidney genes involved in circadian rhythm, cell cycle, micoRNAs in cancer, and PI3K-AKT signaling pathway. In the miRNA-DEGs network, miR-1970, miR-703, miR-466f, miR-5135, and miR-132-3p were the potential targets for irbesartan treatment. The validation test confirmed that key genes regulating circadian rhythm (Arntl, Per3, and Dbp) and cell cycle (Prc1, Ccna2, and Ccnb2) were restored in db/db mice on treatment with Irbesartan. Conclusion Generally, irbesartan can effectively treat DKD by regulating the circadian rhythm and cell cycle. The DEGs and pathways identified in the study will provide new insights into the potential mechanisms of irbesartan in the treatment of DKD.
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Affiliation(s)
- Hailing Zhao
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Zhiguo Li
- The Hebei Key Lab for Organ Fibrosis, the Hebei Key Lab for Chronic Disease, School of Public Health, International Science and Technology Cooperation Base of Geriatric Medicine, North China University of Science and Technology, Tangshan063210, Hebei Province, China
| | - Meihua Yan
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Liang Ma
- Clinical Laboratory, China–Japan Friendship Hospital, Beijing10029, China
| | - Xi Dong
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Xin Li
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Haojun Zhang
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
| | - Ping Li
- Beijing Key Lab Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China–Japan Friendship Hospital, Beijing100029, China
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7
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Chrysant SG. The Option of Chronotherapy of Hypertension. Cardiol Rev 2024:00045415-990000000-00234. [PMID: 38506526 DOI: 10.1097/crd.0000000000000644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
The aim of the present paper is to explore the option of chronotherapy of hypertension and its effectiveness in blood pressure (BP) lowering compared with its standard daily treatment. The treatment of BP has gone through many different schemes over the years. From no treatment in the early 1930s, to step care, to multiple drug combinations, or to single daily drug combinations with 2-3 drugs, still BP is not well controlled in a significant number of patients. Recently, the role of the circadian rhythm in the treatment of hypertension has been tested by several studies comparing the evening versus the morning drug administration with no clear evidence of superiority of either mode of drug administration. However, in cases of morning surge of BP, nocturnal hypertension, and renal disease, the evening drug administration has been more effective than the morning drug administration, and thus, more preferable. In order to get a better perspective on this approach of hypertension treatment, a Medline search of the English literature was contacted between 2010 and 2023 using the terms BP control, circadian rhythm, morning drug administration, evening drug administration, and 38 pertinent papers were selected for analysis. Careful review of the selected papers showed that chronotherapy of hypertension is effective. However, the overall effectiveness of evening drug administration compared with the morning administration is not significantly more effective compared to the morning administration and more work is needed in this field.
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Affiliation(s)
- Steven G Chrysant
- From the Department of Cardiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
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Faraci FM, Scheer FA. Hypertension: Causes and Consequences of Circadian Rhythms in Blood Pressure. Circ Res 2024; 134:810-832. [PMID: 38484034 PMCID: PMC10947115 DOI: 10.1161/circresaha.124.323515] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 02/16/2024] [Indexed: 03/19/2024]
Abstract
Hypertension is extremely common, affecting approximately 1 in every 2 adults globally. Chronic hypertension is the leading modifiable risk factor for cardiovascular disease and premature mortality worldwide. Despite considerable efforts to define mechanisms that underlie hypertension, a potentially major component of the disease, the role of circadian biology has been relatively overlooked in both preclinical models and humans. Although the presence of daily and circadian patterns has been observed from the level of the genome to the whole organism, the functional and structural impact of biological rhythms, including mechanisms such as circadian misalignment, remains relatively poorly defined. Here, we review the impact of daily rhythms and circadian systems in regulating blood pressure and the onset, progression, and consequences of hypertension. There is an emphasis on the impact of circadian biology in relation to vascular disease and end-organ effects that, individually or in combination, contribute to complex phenotypes such as cognitive decline and the loss of cardiac and brain health. Despite effective treatment options for some individuals, control of blood pressure remains inadequate in a substantial portion of the hypertensive population. Greater insight into circadian biology may form a foundation for novel and more widely effective molecular therapies or interventions to help in the prevention, treatment, and management of hypertension and its related pathophysiology.
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Affiliation(s)
- Frank M. Faraci
- Department of Internal Medicine, Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa, Iowa City, IA 52242-1081
- Department of Neuroscience and Pharmacology, Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa, Iowa City, IA 52242-1081
| | - Frank A.J.L. Scheer
- Division of Sleep Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts, 02115
- Medical Chronobiology Program, Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, 02115
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Sansom K, Reynolds A, Windred D, Phillips A, Dhaliwal SS, Walsh J, Maddison K, Singh B, Eastwood P, McArdle N. The interrelationships between sleep regularity, obstructive sleep apnea, and hypertension in a middle-aged community population. Sleep 2024; 47:zsae001. [PMID: 38180870 PMCID: PMC10925954 DOI: 10.1093/sleep/zsae001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 12/20/2023] [Indexed: 01/07/2024] Open
Abstract
STUDY OBJECTIVES Little is known about the interrelationships between sleep regularity, obstructive sleep apnea (OSA) and important health markers. This study examined whether irregular sleep is associated with OSA and hypertension, and if this modifies the known association between OSA and hypertension. METHODS Six hundred and two adults (age mean(SD) = 56.96(5.51) years, female = 60%) from the Raine Study who were not evening or night shift workers were assessed for OSA (in-laboratory polysomnography; apnea-hypopnea index ≥ 15 events/hour), hypertension (doctor diagnosed, or systolic blood pressure ≥140 mmHg and/or diastolic ≥90 mmHg) and sleep (wrist actigraphy for ≥5 days). A sleep regularity index (SRI) was determined from actigraphy. Participants were categorized by tertiles as severely irregular, mildly irregular, or regular sleepers. Logistic regression models examined the interrelationships between SRI, OSA and hypertension. Covariates included age, sex, body mass index, actigraphy sleep duration, insomnia, depression, activity, alcohol, smoking, and antihypertensive medication. RESULTS Compared to regular sleepers, participants with mildly irregular (OR 1.97, 95% confidence intervals [CI] 1.20 to 3.27) and severely irregular (OR 2.06, 95% CI: 1.25 to 3.42) sleep had greater odds of OSA. Compared to those with no OSA and regular sleep, OSA and severely irregular sleep combined had the highest odds of hypertension (OR 2.34 95% CI: 1.07 to 5.12; p for interaction = 0.02) while those with OSA and regular/mildly irregular sleep were not at increased risk (p for interaction = 0.20). CONCLUSIONS Sleep irregularity may be an important modifiable target for hypertension among those with OSA.
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Affiliation(s)
- Kelly Sansom
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Perth, WA, Australia
- Queen Elizabeth II Medical Centre, West Australian Sleep Disorders Research Institute, Nedlands, WA, Australia
- Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute - Sleep Health, Adelaide, SA, Australia
| | - Amy Reynolds
- Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute - Sleep Health, Adelaide, SA, Australia
| | - Daniel Windred
- School of Psychological Sciences, Monash University, Turner Institute for Brain and Mental Health, Clayton, VIC, Australia
| | - Andrew Phillips
- School of Psychological Sciences, Monash University, Turner Institute for Brain and Mental Health, Clayton, VIC, Australia
| | - Satvinder S Dhaliwal
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Bentley, WA, Australia
- Office of the Provost, Singapore University of Social Sciences, Clementi, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Jennifer Walsh
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Perth, WA, Australia
- Queen Elizabeth II Medical Centre, West Australian Sleep Disorders Research Institute, Nedlands, WA, Australia
- Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Kathleen Maddison
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Perth, WA, Australia
- Queen Elizabeth II Medical Centre, West Australian Sleep Disorders Research Institute, Nedlands, WA, Australia
- Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Bhajan Singh
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Perth, WA, Australia
- Queen Elizabeth II Medical Centre, West Australian Sleep Disorders Research Institute, Nedlands, WA, Australia
- Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Peter Eastwood
- Health Futures Institute, Murdoch University, Perth, WA, Australia
| | - Nigel McArdle
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Perth, WA, Australia
- Queen Elizabeth II Medical Centre, West Australian Sleep Disorders Research Institute, Nedlands, WA, Australia
- Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia
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Braekman E, De Bruyne R, Vandekerckhove K, Prytula A. Etiology, risk factors and management of hypertension post liver transplantation. Pediatr Transplant 2024; 28:e14630. [PMID: 37915282 DOI: 10.1111/petr.14630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 09/09/2023] [Accepted: 10/11/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Cardiovascular events are one of the most important causes of morbidity and mortality in the long-term follow-up of liver transplant recipients. Hypertension is a significant cardiovascular risk factor that occurs frequently after pediatric liver transplantation. Chronic use of immunosuppressants - mainly calcineurin inhibitors - plays a major role in the development of post-transplant hypertension and circadian disturbances such as flattening of the nocturnal blood pressure dip. This requires special attention in children given the long timeframe during which immunosuppressive therapy is necessary. Careful and structured blood pressure monitoring and adequate treatment of hypertension are essential to optimize the quality of life and life expectancy of pediatric liver transplant patients. However, evidence-based guidelines for monitoring and management of post-transplant hypertension and its complications are lacking. METHODS We conducted a comprehensive review of the current knowledge and practices concerning post-transplant hypertension. The databases Pubmed, Embase, Web of Science and Google Scholar were scanned with the following keywords: pediatric liver transplantation, immunosuppression, tacrolimus, cardiovascular effects, hypertension, heart function, kidney function, circadian rhythm, mechanism, monitoring, and management. RESULTS In this review, we describe the incidence and etiology of hypertension in pediatric liver transplant recipients, the underlying mechanisms and characteristics of calcineurin inhibitor-induced hypertension, and the consequences of and risk factors for post-transplant hypertension. We hereby present an overview of the current practices in blood pressure monitoring and antihypertensive treatment as well as an algorithm for the evaluation and management of hypertension post liver transplantation. Finally, we discuss knowledge gaps and suggestions for future research.
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Affiliation(s)
- Eline Braekman
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Ruth De Bruyne
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, Ghent University Hospital, Ghent, Belgium
| | - Kristof Vandekerckhove
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Department of Pediatric Cardiology, Ghent University Hospital, Ghent, Belgium
| | - Agnieszka Prytula
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Department of Pediatric Nephrology and Rheumatology, Ghent University Hospital, Ghent, Belgium
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11
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Ghazi L, Cohen JB, Townsend RR, Drawz PE, Rahman M, Pradhan N, Cohen DL, Weir MR, Rincon-Choles H, Juraschek SP. Orthostatic hypotension, orthostatic hypertension, and ambulatory blood pressure in patients with chronic kidney disease in CRIC. J Hypertens 2024; 42:329-336. [PMID: 37889527 PMCID: PMC10842034 DOI: 10.1097/hjh.0000000000003604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
BACKGROUND Orthostatic changes in blood pressure (BP), either orthostatic hypotension or orthostatic hypertension (OHTN), are common among patients with chronic kidney disease. Whether they are associated with unique out-of-office BP phenotypes is unknown. METHODS CRIC is a prospective, multicenter, observational cohort study of participants with CKD. BP measured at 2 min after standing and ambulatory BP monitoring (ABPM) were obtained on 1386 participants. Orthostatic hypotension was defined as a 20 mmHg drop in SBP or 10 mmHg drop in DBP when changing from seated to standing positions. Systolic and diastolic night-to-day ratio was also calculated. OHTN was defined as a 20 or 10 mmHg rise in SBP or DBP when changing from a seated to a standing position. White-coat effect (WCE) was defined as seated minus daytime ambulatory BP. RESULTS Of the 1386 participants (age: 58 ± 10 years, 44% female, 39% black), 68 had orthostatic hypotension and 153 had OHTN. Postural reduction in SBP or DBP was positively associated with greater systolic and diastolic WCE and systolic and diastolic night-to-day ratio. Orthostatic hypotension was positively associated with diastolic WCE (β = 3 [0.2, 5.9]). Diastolic OHTN was negatively associated with systolic WCE (β = -4 [-7.2, -0.5]) and diastolic WCE (β = -6 [-8.1, -4.2]). CONCLUSION Postural change in BP was associated with WCE and night-to-day-ratio. Orthostatic hypotension was positively associated with WCE and OHTN was negatively associated with WCE. These findings strengthen observations that postural changes in BP may associate with distinct BP patterns throughout the day. These observations are informative for subsequent research tailoring orthostatic hypotension and OHTN treatment to specific BP phenotypes.
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Affiliation(s)
- Lama Ghazi
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, AL
| | - Jordana B Cohen
- Renal-Electrolyte and Hypertension Division, Department of Medicine, University of Pennsylvania, PA
| | - Raymond R Townsend
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Paul E Drawz
- Division of Nephrology and Hypertension, Department of Medicine, University of Minnesota, Minneapolis, MN
| | - Mahboob Rahman
- Division of Nephrology and Hypertension, University Hospitals Cleveland Medical Center, Case Western Reserve University, OH
| | - Nishigandha Pradhan
- Division of Nephrology and Hypertension, University Hospitals Cleveland Medical Center, Case Western Reserve University, OH
| | - Debbie L Cohen
- Renal-Electrolyte and Hypertension Division, Department of Medicine, University of Pennsylvania, PA
| | - Matthew R. Weir
- Division of Nephrology, University of Maryland School of Medicine, Baltimore, MD
| | - Hernan Rincon-Choles
- Cleveland Clinic Foundation, Glickman Urological & Kidney Institute, Department of Nephrology, Cleveland, OH
| | - Stephen P Juraschek
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
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12
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Jiang X, Mang X, Zhou H, Chen J, Tan H, Ren H, Huang B, Zhong L, Lipsitz LA, Manor B, Guo Y, Zhou J. The physiologic complexity of beat-to-beat blood pressure is associated with age-related alterations in blood pressure regulation. Aging Cell 2024; 23:e13943. [PMID: 37615223 PMCID: PMC10776119 DOI: 10.1111/acel.13943] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 08/25/2023] Open
Abstract
The fluctuations in resting-state beat-to-beat blood pressure (BP) are physiologically complex, and the degree of such BP complexity is believed to reflect the multiscale regulation of this critical physiologic process. Hypertension (HTN), one common age-related condition, is associated with altered BP regulation and diminished system responsiveness to perturbations such as orthostatic change. We thus aimed to characterize the impact of HTN on resting-state BP complexity, as well as the relationship between BP complexity and both adaptive capacity and underlying vascular characteristics. We recruited 392 participants (age: 60-91 years), including 144 that were normotensive and 248 with HTN (140 controlled- and 108 uncontrolled-HTN). Participants completed a 10-min continuous finger BP recording during supine rest, then underwent measures of lying-to-standing BP change, arterial stiffness (i.e., brachial-ankle pulse wave velocity), and endothelial function (i.e., flow-mediated vasodilation). The complexity of supine beat-to-beat systolic (SBP) and diastolic (DBP) BP was quantified using multiscale entropy. Thirty participants with HTN (16 controlled-HTN and 14 uncontrolled-HTN) exhibited orthostatic hypotension. SBP and DBP complexity was greatest in normotensive participants, lower in those with controlled-HTN, and lowest in those in uncontrolled-HTN (p < 0.0005). Lower SBP and DBP complexity correlated with greater lying-to-standing decrease in SBP and DBP level (β = -0.33 to -0.19, p < 0.01), greater arterial stiffness (β = -0.35 to -0.18, p < 0.01), and worse endothelial function (β = 0.17-0.22, p < 0.01), both across all participants and within the control- and uncontrolled-HTN groups. These results suggest that in older adults, BP complexity may capture the integrity of multiple interacting physiologic mechanisms that regulate BP and are important to cardiovascular health.
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Affiliation(s)
- Xin Jiang
- Department of GeriatricsShenzhen People's HospitalShenzhenChina
- The Second Clinical Medical CollegeJinan UniversityShenzhenChina
- The First Affiliated HospitalSouthern University of Science and TechnologyShenzhenChina
| | - Xiaoying Mang
- Department of GeriatricsShenzhen People's HospitalShenzhenChina
- The Second Clinical Medical CollegeJinan UniversityShenzhenChina
- The First Affiliated HospitalSouthern University of Science and TechnologyShenzhenChina
| | - Huiting Zhou
- Department of GeriatricsShenzhen People's HospitalShenzhenChina
- The Second Clinical Medical CollegeJinan UniversityShenzhenChina
- The First Affiliated HospitalSouthern University of Science and TechnologyShenzhenChina
| | - Jingmei Chen
- Department of GeriatricsShenzhen People's HospitalShenzhenChina
- The Second Clinical Medical CollegeJinan UniversityShenzhenChina
- The First Affiliated HospitalSouthern University of Science and TechnologyShenzhenChina
| | - Huiying Tan
- Department of GeriatricsShenzhen People's HospitalShenzhenChina
- The Second Clinical Medical CollegeJinan UniversityShenzhenChina
| | - Huixia Ren
- Department of GeriatricsShenzhen People's HospitalShenzhenChina
- The Second Clinical Medical CollegeJinan UniversityShenzhenChina
- The First Affiliated HospitalSouthern University of Science and TechnologyShenzhenChina
| | - Baofeng Huang
- Department of GeriatricsShenzhen People's HospitalShenzhenChina
- The Second Clinical Medical CollegeJinan UniversityShenzhenChina
- The First Affiliated HospitalSouthern University of Science and TechnologyShenzhenChina
| | - Lilian Zhong
- Department of GeriatricsShenzhen People's HospitalShenzhenChina
- The Second Clinical Medical CollegeJinan UniversityShenzhenChina
- The First Affiliated HospitalSouthern University of Science and TechnologyShenzhenChina
| | - Lewis A. Lipsitz
- Hinda and Arthur Marcus Institute for Aging ResearchHebrew SeniorLifeBostonMassachusettsUSA
- Division of GerontologyBeth Israel Deaconess Medical CenterBostonMassachusettsUSA
- Harvard Medical SchoolBostonMassachusettsUSA
| | - Brad Manor
- Hinda and Arthur Marcus Institute for Aging ResearchHebrew SeniorLifeBostonMassachusettsUSA
- Division of GerontologyBeth Israel Deaconess Medical CenterBostonMassachusettsUSA
- Harvard Medical SchoolBostonMassachusettsUSA
| | - Yi Guo
- The Second Clinical Medical CollegeJinan UniversityShenzhenChina
- The First Affiliated HospitalSouthern University of Science and TechnologyShenzhenChina
- Department of NeurologyShenzhen People's HospitalShenzhenChina
- Shenzhen Bay LaboratoryShenzhenChina
| | - Junhong Zhou
- Hinda and Arthur Marcus Institute for Aging ResearchHebrew SeniorLifeBostonMassachusettsUSA
- Division of GerontologyBeth Israel Deaconess Medical CenterBostonMassachusettsUSA
- Harvard Medical SchoolBostonMassachusettsUSA
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13
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Bommarito JC, Millar PJ. Effects of aerobic exercise on ambulatory blood pressure responses to acute partial sleep deprivation: impact of chronotype and sleep quality. Am J Physiol Heart Circ Physiol 2024; 326:H291-H301. [PMID: 38038716 DOI: 10.1152/ajpheart.00441.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/07/2023] [Accepted: 11/28/2023] [Indexed: 12/02/2023]
Abstract
Blood pressure (BP) follows a circadian rhythm intertwined with the sleep-wake cycle. Acute partial sleep deprivation (PSD; sleep ≤ 6 h) can increase BP, associated with increased cardiovascular risk. Acute exercise can reduce BP for up to 24 h, a phenomenon termed postexercise hypotension. The present study tested whether aerobic exercise could mitigate the augmented 24-h ambulatory BP caused by acute PSD. Twenty-four young otherwise healthy adults (22 ± 3 yr; 14 females; self-reported chronotypes: 6 early/10 intermediate/8 late; Pittsburgh sleep quality index: 17 good/7 poor sleepers) completed a randomized crossover trial in which, on different days, they slept normally (2300-0700), restricted sleep [0330-0700 (PSD)], and cycled for 50 min (70-80% predicted heart rate maximum) before PSD. Ambulatory BP was assessed every 30 min until 2100 the next day. Acute PSD increased 24-h systolic BP (control 117 ± 9 mmHg, PSD 122 ± 9 mmHg; P < 0.001) and prior exercise attenuated (exercise + PSD 120 ± 9 mmHg; P = 0.04 vs. PSD) but did not fully reverse this response (exercise + PSD, P = 0.02 vs. control). Subgroup analysis revealed that the 24-h systolic BP reduction following exercise was specific to late types (PSD 119 ± 7 vs. exercise + PSD 116 ± 6 mmHg; P < 0.05). Overall, habitual sleep quality was negatively correlated with the change in daytime systolic BP following PSD (r = -0.56, P < 0.01). These findings suggest that the ability of aerobic cycling exercise to counteract the hemodynamic effects of acute PSD in young adults may be dependent on chronotype and that habitual sleep quality can predict the daytime BP response to acute PSD.NEW & NOTEWORTHY We demonstrate that cycling exercise attenuates, but does not fully reverse, the augmented 24-h ambulatory blood pressure (BP) response caused by acute partial sleep deprivation (PSD). This response was primarily observed in late chronotypes. Furthermore, daytime BP after acute PSD is related to habitual sleep quality, with better sleepers being more prone to BP elevations. This suggests that habitual sleeping habits can influence BP responses to acute PSD and their interactions with prior cycling exercise.
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Affiliation(s)
- Julian C Bommarito
- Human Cardiovascular Physiology Laboratory, Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Philip J Millar
- Human Cardiovascular Physiology Laboratory, Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
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14
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Bohmke NJ, Dixon DL, Kirkman DL. Chrono-nutrition for hypertension. Diabetes Metab Res Rev 2024; 40:e3760. [PMID: 38287721 DOI: 10.1002/dmrr.3760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 10/27/2023] [Accepted: 11/15/2023] [Indexed: 01/31/2024]
Abstract
Despite the advancement in blood pressure (BP) lowering medications, uncontrolled hypertension persists, underscoring a stagnation of effective clinical strategies. Novel and effective lifestyle therapies are needed to prevent and manage hypertension to mitigate future progression to cardiovascular and chronic kidney diseases. Chrono-nutrition, aligning the timing of eating with environmental cues and internal biological clocks, has emerged as a potential strategy to improve BP in high-risk populations. The aim of this review is to provide an overview of the circadian physiology of BP with an emphasis on renal and vascular circadian biology. The potential of Chrono-nutrition as a lifestyle intervention for hypertension is discussed and current evidence for the efficacy of time-restricted eating is presented.
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Affiliation(s)
- Natalie J Bohmke
- Department of Kinesiology and Health Sciences, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Dave L Dixon
- Department of Pharmacotherapy and Outcomes Science, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Danielle L Kirkman
- Department of Kinesiology and Health Sciences, Virginia Commonwealth University, Richmond, Virginia, USA
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15
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He SK, Wang JH, Li T, Yin S, Cui JW, Xiao YF, Tang Y, Wang J, Bai YJ. Sleep and circadian rhythm disturbance in kidney stone disease: a narrative review. Front Endocrinol (Lausanne) 2023; 14:1293685. [PMID: 38089624 PMCID: PMC10711275 DOI: 10.3389/fendo.2023.1293685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
The circadian rhythm generated by circadian clock genes functions as an internal timing system. Since the circadian rhythm controls abundant physiological processes, the circadian rhythm evolved in organisms is salient for adaptation to environmental change. A disturbed circadian rhythm is a trigger for numerous pathological events. Recently, accumulated data have indicated that kidney stone disease (KSD) is related to circadian rhythm disturbance. However, the mechanism between them has not been fully elucidated. In this narrative review, we summarized existing evidence to illustrate the possible association between circadian rhythm disturbance and KSD based on the epidemiological studies and risk factors that are linked to circadian rhythm disturbance and discuss some chronotherapies for KSD. In summary, KSD is associated with systemic disorders. Metabolic syndrome, inflammatory bowel disease, and microbiome dysbiosis are the major risk factors supported by sufficient data to cause KSD in patients with circadian rhythm disturbance, while others including hypertension, vitamin D deficiency, parathyroid gland dysfunction, and renal tubular damage/dysfunction need further investigation. Then, some chronotherapies for KSD were confirmed to be effective, but the molecular mechanism is still unclear.
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Affiliation(s)
- Si-Ke He
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Jia-Hao Wang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Li
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Shan Yin
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Jian-Wei Cui
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Yun-Fei Xiao
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Yin Tang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Jia Wang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Yun-Jin Bai
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu, China
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16
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Staub O, Debonneville A, Stifanelli M, Juffre A, Maillard MP, Gumz ML, Al-Qusairi L. Renal tubular SGK1 is required to achieve blood pressure surge and circadian rhythm. Am J Physiol Renal Physiol 2023; 325:F629-F637. [PMID: 37676758 PMCID: PMC10878722 DOI: 10.1152/ajprenal.00211.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/29/2023] [Accepted: 08/29/2023] [Indexed: 09/09/2023] Open
Abstract
Blood pressure (BP) follows a circadian pattern that rises during the active phase of the day (morning surge) and decreases during the inactive (night dipping) phase of the day. The morning surge coincides with increased circulating glucocorticoids and aldosterone, ligands for glucocorticoid receptors and mineralocorticoid receptors, respectively. Serum- and glucocorticoid-induced kinase 1 (SGK1), a clock-controlled and glucocorticoid receptor- and mineralocorticoid receptor-induced gene, plays a role in BP regulation in human and animal models. However, the role of SGK1 in BP circadian regulation has not yet been demonstrated. Using telemetry, we analyzed BP in the inducible renal tubule-specific Sgk1Pax8/LC1 model under basal K+ diet (1% K+) and high-K+ diet (HKD; 5% K+). Our data revealed that, under basal conditions, renal SGK1 plays a minor role in BP regulation; however, after 1 wk of HKD, Sgk1Pax8/LC1 mice exhibited significant defects in diastolic BP (DBP), including a blunted surge, a decreased amplitude, and reduced day/night differences. After prolonged HKD (7 wk), Sgk1Pax8/LC1 mice had lower BP than control mice and exhibited reduced DBP amplitude, together with decreased DBP day/night differences and midline estimating statistic of rhythm (MESOR). Interestingly, renal SGK1 deletion increased pulse pressure, likely secondary to an increase in circulating aldosterone. Taken together, our data suggest that 1) the kidney plays a significant role in setting the BP circadian rhythm; 2) renal tubule SGK1 mediates the BP surge and, thus, the day/night BP difference; 3) long-term renal SGK1 deletion results in lower BP in mutant compared with control mice; and 4) renal SGK1 indirectly regulates pulse pressure due to compensatory alterations in aldosterone levels.NEW & NOTEWORTHY Dysregulation of blood pressure (BP) circadian rhythm is associated with metabolic, cardiovascular, and kidney diseases. Our study provides experimental evidence demonstrating, for the first time, that renal tubule serum- and glucocorticoid-induced kinase 1 (SGK1) plays an essential role in inducing the BP surge. Inhibitors and activators of SGK1 signaling are parts of several therapeutic strategies. Our findings highlight the importance of the drug intake timing to be in phase with SGK1 function to avoid dysregulation of BP circadian rhythm.
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Affiliation(s)
- Olivier Staub
- Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Anne Debonneville
- Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Matteo Stifanelli
- Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
| | - Alexandria Juffre
- Division of Nephrology, Department of Physiology and Aging, College of Medicine, University of Florida, Gainesville, Florida, United States
- Center for Integrative Cardiovascular and Metabolic Diseases, University of Florida, Gainesville, Florida, United States
| | - Marc P Maillard
- Division of Nephrology, Lausanne University Hospital, Lausanne, Switzerland
| | - Michelle L Gumz
- Division of Nephrology, Department of Physiology and Aging, College of Medicine, University of Florida, Gainesville, Florida, United States
- Center for Integrative Cardiovascular and Metabolic Diseases, University of Florida, Gainesville, Florida, United States
| | - Lama Al-Qusairi
- Department of Biomedical Sciences, University of Lausanne, Lausanne, Switzerland
- Division of Nephrology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
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17
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Safdar M, Wessells RJ. Octopamine Rescues Endurance and Climbing Speed in Drosophila Clkout Mutants with Circadian Rhythm Disruption. Cells 2023; 12:2515. [PMID: 37947593 PMCID: PMC10648926 DOI: 10.3390/cells12212515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023] Open
Abstract
Circadian rhythm disturbances are associated with various negative health outcomes, including an increasing incidence of chronic diseases with high societal costs. While exercise can protect against the negative effects of rhythm disruption, it is not available to all those impacted by sleep disruptions, in part because sleep disruption itself reduces exercise capacity. Thus, there is a need for therapeutics that bring the benefits of exercise to this population. Here, we investigate the relationship between exercise and circadian disturbances using a well-established Drosophila model of circadian rhythm loss, the Clkout mutant. We find that Clkout causes reduced exercise capacity, measured as post-training endurance, flight performance, and climbing speed, and these phenotypes are not rescued by chronic exercise training. However, exogenous administration of a molecule known to mediate the effects of chronic exercise, octopamine (OA), was able to effectively rescue mutant exercise performance, including the upregulation of other known exercise-mediating transcripts, without restoring the circadian rhythms of mutants. This work points the way toward the discovery of novel therapeutics that can restore exercise capacity in patients with rhythm disruption.
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Affiliation(s)
| | - Robert J. Wessells
- Department of Physiology, School of Medicine, Wayne State University, Detroit, MI 48201, USA;
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18
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Reichenberger DA, Ness KM, Strayer SM, Mathew GM, Schade MM, Buxton OM, Chang AM. Recovery Sleep After Sleep Restriction Is Insufficient to Return Elevated Daytime Heart Rate and Systolic Blood Pressure to Baseline Levels. Psychosom Med 2023; 85:744-751. [PMID: 37363991 PMCID: PMC10543608 DOI: 10.1097/psy.0000000000001229] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
OBJECTIVE Sleep restriction alters daytime cardiac activity, including elevating heart rate (HR) and blood pressure (BP). There is minimal research on the cumulative effects of sleep loss and the response after subsequent recovery sleep on HR and BP. This study examined patterns of HR and BP across baseline, sleep restriction, and recovery conditions using multiple daytime cardiac measurements. METHODS Participants (15 healthy men, mean [standard deviation] = 22.3 [2.8] years) completed an 11-day inpatient protocol with three nights of 10 hours/night baseline sleep opportunity, five sleep restriction nights (5-hour/night sleep opportunity), and two recovery nights (10-hour/night sleep opportunity). Resting HR and BP were measured every 2 hours during wake. Multilevel models with random effects for individuals examined daytime HR and BP across study conditions and days into the study. RESULTS Mean daytime HR was 1.2 (0.5) beats/min lower during sleep restriction compared with baseline ( p < .001). During recovery, HR was 5.5 (1.0) beats/min higher ( p < .001), and systolic BP (SBP) was 2.9 (1.1) mm Hg higher ( p = .009). When accounting for days into the study (irrespective of condition) and measurement timing across the day, HR increased by 7.6 beats/min and SBP increased by 3.4 mm Hg across the study period ( p < .001). CONCLUSIONS Our findings suggest that daytime HR and SBP increase after successive nights of sleep restriction, even after accounting for measurement time of day. HR and SBP did not recover to baseline levels after two recovery nights of sleep, suggesting that longer recovery sleep may be necessary to recover from multiple, consecutive nights of moderate sleep restriction.
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Affiliation(s)
| | - Kelly M. Ness
- Department of Medicine, Division of Metabolism, Endocrinology, and Nutrition, University of Washington
| | | | - Gina Marie Mathew
- Program in Public Health; Department of Family, Population, and Preventive Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States
| | | | - Orfeu M. Buxton
- Department of Biobehavioral Health, Pennsylvania State University
| | - Anne-Marie Chang
- Department of Biobehavioral Health, Pennsylvania State University
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19
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Martínez-Montoro JI, Benítez-Porres J, Tinahones FJ, Ortega-Gómez A, Murri M. Effects of exercise timing on metabolic health. Obes Rev 2023; 24:e13599. [PMID: 37416977 DOI: 10.1111/obr.13599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/12/2023] [Accepted: 06/12/2023] [Indexed: 07/08/2023]
Abstract
The increasing prevalence of metabolic syndrome is associated with major health and socioeconomic consequences. Currently, physical exercise, together with dietary interventions, is the mainstay of the treatment of obesity and related metabolic complications. Although exercise training includes different modalities, with variable intensity, duration, volume, or frequency, which may have a distinct impact on several characteristics related to metabolic syndrome, the potential effects of exercise timing on metabolic health are yet to be fully elucidated. Remarkably, promising results with regard to this topic have been reported in the last few years. Similar to other time-based interventions, including nutritional therapy or drug administration, time-of-day-based exercise may become a useful approach for the management of metabolic disorders. In this article, we review the role of exercise timing in metabolic health and discuss the potential mechanisms that could drive the metabolic-related benefits of physical exercise performed in a time-dependent manner.
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Affiliation(s)
- José Ignacio Martínez-Montoro
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Faculty of Medicine, University of Málaga, Málaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
| | - Javier Benítez-Porres
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Physical Education and Sport, Faculty of Medicine, University of Málaga, Málaga, Spain
| | - Francisco J Tinahones
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Faculty of Medicine, University of Málaga, Málaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
| | - Almudena Ortega-Gómez
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
| | - Mora Murri
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
- Heart Area Clinical Management Unit, Virgen de la Victoria University Hospital, Málaga, Spain
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20
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Alostaz M, Correa S, Lundy GS, Waikar SS, Mc Causland FR. Time of hemodialysis and risk of intradialytic hypotension and intradialytic hypertension in maintenance hemodialysis. J Hum Hypertens 2023; 37:880-890. [PMID: 36599899 DOI: 10.1038/s41371-022-00799-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 12/11/2022] [Accepted: 12/21/2022] [Indexed: 01/05/2023]
Abstract
Intradialytic hypotension and intradialytic hypertension are complications of hemodialysis (HD) associated with a higher risk of cardiovascular disease (CVD) and death. Blood pressure (BP) normally fluctuates in a circadian pattern, but whether the risk of intradialytic hypotension and intradialytic hypertension varies according to the time of the HD session is unknown. We analyzed two cohorts of thrice-weekly maintenance HD (N = 1838 patients/n = 64,503 sessions from the Hemodialysis [HEMO] Study, and N = 3302 patients/n = 33,590 sessions from Satellite Healthcare). Random effects logistic regression models examined the association of HD start time (at or before 9:00 a.m. [early AM], between 9:01 a.m. and 12:00 p.m. [late AM], and at or after 12:01 p.m. [PM]) with intradialytic hypotension (defined as nadir intra-HD systolic BP (SBP) < 90 mmHg if pre-HD SBP < 160 mmHg, or <100 mmHg if pre-HD SBP ≥ 160 mmHg) and intradialytic hypertension (SBP increase ≥ 10 mmHg from pre-HD to post-HD). Compared to early AM, late AM and PM were associated with an 8% (aOR 0.92, 95% CI 0.83-1.02) and a 16% (aOR 0.84, 95% CI 0.75-0.95) lower risk of intradialytic hypotension in HEMO, respectively. Conversely, compared to early AM, a monotonic higher risk of intradialytic hypertension was observed for late AM (aOR 1.23, 95% CI 1.12-1.35) and PM (aOR 1.41, 95% CI 1.27-1.56) in HEMO. These findings were consistent in Satellite. In two large cohorts of maintenance HD, we observed a monotonic lower risk of intradialytic hypotension and a monotonic higher risk of intradialytic hypertension with later dialysis start times. Whether HD treatment allocation to certain times of the day in hypotensive-prone or hypertensive-prone patients improves outcomes deserves further investigation.
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Affiliation(s)
- Murad Alostaz
- Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA
| | - Simon Correa
- Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA.
- Yale New Haven Hospital, New Haven, CT, USA.
- Renal Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
| | - Gavin S Lundy
- Queen's University Belfast, Belfast, Northern Ireland
| | - Sushrut S Waikar
- Renal Section, Department of Medicine, Boston University Medical Center, Boston, MA, USA
| | - Finnian R Mc Causland
- Renal Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
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21
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Yang L, Wang Y, Liu X, Zhou T, Zhang L, Han Y, Wang X. Rhythm of Acute Aortic Syndrome in Northeastern China. Int Heart J 2023; 64:856-864. [PMID: 37704409 DOI: 10.1536/ihj.23-028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Acute aortic syndromes (AAS) are a series of life-threatening conditions of the aorta. To improve predictability and prevention, we investigated the daily, weekly, monthly, and seasonal variations in the onset of AAS in Liaoning Province, Northeast China.We collected the clinical data of 1,197 patients treated for AAS at the General Hospital of Northern Theater Command between June 2002 and June 2021. Chi-square goodness-of-fit testing was used to determine whether AAS uniformly occurred.The average age was 54.93 ± 12.32 years, and 614 patients (51.29%) aged below or equal to 55 years. Nine-hundred-and-five patients (75.61%) were male. The proportions of patients comorbid with hypertension and diabetes were 80.37% and 4.09%, respectively. The peak time of the day for the onset of AAS was between 12:00 and 17:59 (P < 0.001). Furthermore, we found that patients with hypertension had obvious circadian rhythm. AAS had a weekly distribution (P = 0.032), with Sunday and Monday being two troughs. The incidence rate of AAS was low in warmer periods, such as July and August in summer (P < 0.001). The correlation analysis revealed a negative association between the incidence of AAS and the monthly average temperature (P < 0.05).Our results revealed that AAS displayed circadian and seasonal rhythms in northeast China. AAS peaked between 12:00 and 17:59. Patients with AAS with hypertension had obvious circadian rhythm. Summer was trough season for the onset of AAS. The incidence rate of AAS was negatively correlated with the monthly average temperature.
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Affiliation(s)
- Lin Yang
- College of Medicine and Biological Information Engineering, Northeastern University
- State Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command
| | - Yasong Wang
- State Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command
| | - Xuanze Liu
- State Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command
| | - Tienan Zhou
- State Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command
| | - Lei Zhang
- State Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command
| | - Yaling Han
- State Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command
| | - Xiaozeng Wang
- State Key Laboratory of Frigid Zone Cardiovascular Disease, Cardiovascular Research Institute and Department of Cardiology, General Hospital of Northern Theater Command
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22
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Mitchell JW, Gillette MU. Development of circadian neurovascular function and its implications. Front Neurosci 2023; 17:1196606. [PMID: 37732312 PMCID: PMC10507717 DOI: 10.3389/fnins.2023.1196606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 08/14/2023] [Indexed: 09/22/2023] Open
Abstract
The neurovascular system forms the interface between the tissue of the central nervous system (CNS) and circulating blood. It plays a critical role in regulating movement of ions, small molecules, and cellular regulators into and out of brain tissue and in sustaining brain health. The neurovascular unit (NVU), the cells that form the structural and functional link between cells of the brain and the vasculature, maintains the blood-brain interface (BBI), controls cerebral blood flow, and surveils for injury. The neurovascular system is dynamic; it undergoes tight regulation of biochemical and cellular interactions to balance and support brain function. Development of an intrinsic circadian clock enables the NVU to anticipate rhythmic changes in brain activity and body physiology that occur over the day-night cycle. The development of circadian neurovascular function involves multiple cell types. We address the functional aspects of the circadian clock in the components of the NVU and their effects in regulating neurovascular physiology, including BBI permeability, cerebral blood flow, and inflammation. Disrupting the circadian clock impairs a number of physiological processes associated with the NVU, many of which are correlated with an increased risk of dysfunction and disease. Consequently, understanding the cell biology and physiology of the NVU is critical to diminishing consequences of impaired neurovascular function, including cerebral bleeding and neurodegeneration.
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Affiliation(s)
- Jennifer W. Mitchell
- Department of Cell and Developmental Biology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Martha U. Gillette
- Department of Cell and Developmental Biology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Carle-Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL, United States
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23
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Visniauskas B, Kilanowski-Doroh I, Ogola BO, Mcnally AB, Horton AC, Imulinde Sugi A, Lindsey SH. Estrogen-mediated mechanisms in hypertension and other cardiovascular diseases. J Hum Hypertens 2023; 37:609-618. [PMID: 36319856 PMCID: PMC10919324 DOI: 10.1038/s41371-022-00771-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 10/06/2022] [Accepted: 10/18/2022] [Indexed: 06/08/2023]
Abstract
Cardiovascular disease (CVD) is the leading cause of death globally for men and women. Premenopausal women have a lower incidence of hypertension and other cardiovascular events than men of the same age, but diminished sex differences after menopause implicates 17-beta-estradiol (E2) as a protective agent. The cardioprotective effects of E2 are mediated by nuclear estrogen receptors (ERα and ERβ) and a G protein-coupled estrogen receptor (GPER). This review summarizes both established as well as emerging estrogen-mediated mechanisms that underlie sex differences in the vasculature during hypertension and CVD. In addition, remaining knowledge gaps inherent in the association of sex differences and E2 are identified, which may guide future clinical trials and experimental studies in this field.
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Affiliation(s)
- Bruna Visniauskas
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, USA
| | | | - Benard O Ogola
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, USA
| | - Alexandra B Mcnally
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, USA
| | - Alec C Horton
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, USA
| | - Ariane Imulinde Sugi
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, USA
| | - Sarah H Lindsey
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, USA.
- Tulane Center of Excellence in Sex-Based Biology and Medicine, New Orleans, LA, USA.
- Tulane Brain Institute, New Orleans, LA, USA.
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24
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Bumgarner JR, Walker WH, Quintana DD, White RC, Richmond AA, Meléndez-Fernández OH, Liu JA, Becker-Krail DD, Walton JC, Simpkins JW, DeVries AC, Nelson RJ. Acute exposure to artificial light at night alters hippocampal vascular structure in mice. iScience 2023; 26:106996. [PMID: 37534143 PMCID: PMC10391664 DOI: 10.1016/j.isci.2023.106996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/15/2023] [Accepted: 05/25/2023] [Indexed: 08/04/2023] Open
Abstract
The structure and function of the cardiovascular system are modulated across the day by circadian rhythms, making this system susceptible to circadian rhythm disruption. Recent evidence demonstrated that short-term exposure to a pervasive circadian rhythm disruptor, artificial light at night (ALAN), increased inflammation and altered angiogenic transcripts in the hippocampi of mice. Here, we examined the effects of four nights of ALAN exposure on mouse hippocampal vascular networks. To do this, we analyzed 2D and 3D images of hippocampal vasculature and hippocampal transcriptomic profiles of mice exposed to ALAN. ALAN reduced vascular density in the CA1 and CA2/3 of female mice and the dentate gyrus of male mice. Network structure and connectivity were also impaired in the CA2/3 of female mice. These results demonstrate the rapid and potent effects of ALAN on cerebrovascular networks, highlighting the importance of ALAN mitigation in the context of health and cerebrovascular disease.
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Affiliation(s)
- Jacob R Bumgarner
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
| | - William H Walker
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
| | - Dominic D Quintana
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
| | - Rhett C White
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
| | - Alexandra A Richmond
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
| | | | - Jennifer A Liu
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
| | - Darius D Becker-Krail
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
| | - James C Walton
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
| | - James W Simpkins
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
| | - A Courtney DeVries
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
- Department of Medicine, Division of Oncology/Hematology West Virginia University Morgantown, WV 26505, USA
- WVU Cancer Institute West Virginia University Morgantown, WV 26505 USA
| | - Randy J Nelson
- Department of Neuroscience, Rockefeller Neuroscience Institute West Virginia University Morgantown, WV 26505, USA
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25
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Visniauskas B, Reverte V, Abshire CM, Ogola BO, Rosales CB, Galeas-Pena M, Sure VN, Sakamuri SSVP, Harris NR, Kilanowski-Doroh I, Mcnally AB, Horton AC, Zimmerman M, Katakam PVG, Lindsey SH, Prieto MC. High-plasma soluble prorenin receptor is associated with vascular damage in male, but not female, mice fed a high-fat diet. Am J Physiol Heart Circ Physiol 2023; 324:H762-H775. [PMID: 36930656 PMCID: PMC10151046 DOI: 10.1152/ajpheart.00638.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 03/02/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023]
Abstract
Plasma soluble prorenin receptor (sPRR) displays sexual dimorphism and is higher in women with type 2 diabetes mellitus (T2DM). However, the contribution of plasma sPRR to the development of vascular complications in T2DM remains unclear. We investigated if plasma sPRR contributes to sex differences in the activation of the systemic renin-angiotensin-aldosterone system (RAAS) and vascular damage in a model of high-fat diet (HFD)-induced T2DM. Male and female C57BL/6J mice were fed either a normal fat diet (NFD) or an HFD for 28 wk to assess changes in blood pressure, cardiometabolic phenotype, plasma prorenin/renin, sPRR, and ANG II. After completing dietary protocols, tissues were collected from males to assess vascular reactivity and aortic reactive oxygen species (ROS). A cohort of male mice was used to determine the direct contribution of increased systemic sPRR by infusion. To investigate the role of ovarian hormones, ovariectomy (OVX) was performed at 32 wk in females fed either an NFD or HFD. Significant sex differences were found after 28 wk of HFD, where only males developed T2DM and increased plasma prorenin/renin, sPRR, and ANG II. T2DM in males was accompanied by nondipping hypertension, carotid artery stiffening, and aortic ROS. sPRR infusion in males induced vascular thickening instead of material stiffening caused by HFD-induced T2DM. While intact females were less prone to T2DM, OVX increased plasma prorenin/renin, sPRR, and systolic blood pressure. These data suggest that sPRR is a novel indicator of systemic RAAS activation and reflects the onset of vascular complications during T2DM regulated by sex.NEW & NOTEWORTHY High-fat diet (HFD) for 28 wk leads to type 2 diabetes mellitus (T2DM) phenotype, concomitant with increased plasma soluble prorenin receptor (sPRR), nondipping blood pressure, and vascular stiffness in male mice. HFD-fed female mice exhibiting a preserved cardiometabolic phenotype until ovariectomy revealed increased plasma sPRR and blood pressure. Plasma sPRR may indicate the status of systemic renin-angiotensin-aldosterone system (RAAS) activation and the onset of vascular complications during T2DM in a sex-dependent manner.
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Affiliation(s)
- Bruna Visniauskas
- Department of Physiology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Tulane Center for Sex-Based Biology and Medicine, New Orleans, Louisiana, United States
| | - Virginia Reverte
- Department of Physiology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Caleb M Abshire
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Benard O Ogola
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, Georgia, United States
| | - Carla B Rosales
- Department of Physiology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Michelle Galeas-Pena
- Department of Physiology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Venkata N Sure
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Siva S V P Sakamuri
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Nicholas R Harris
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Isabella Kilanowski-Doroh
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Alexandra B Mcnally
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Alec C Horton
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Margaret Zimmerman
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Prasad V G Katakam
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Sarah H Lindsey
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Tulane Center for Sex-Based Biology and Medicine, New Orleans, Louisiana, United States
- Tulane Hypertension and Renal Center of Excellence, New Orleans, Louisiana, United States
| | - Minolfa C Prieto
- Department of Physiology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Tulane Center for Sex-Based Biology and Medicine, New Orleans, Louisiana, United States
- Tulane Hypertension and Renal Center of Excellence, New Orleans, Louisiana, United States
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26
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Toffoli B, Tonon F, Giudici F, Ferretti T, Ghirigato E, Contessa M, Francica M, Candido R, Puato M, Grillo A, Fabris B, Bernardi S. Preliminary Study on the Effect of a Night Shift on Blood Pressure and Clock Gene Expression. Int J Mol Sci 2023; 24:ijms24119309. [PMID: 37298261 DOI: 10.3390/ijms24119309] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Night shift work has been found to be associated with a higher risk of cardiovascular and cerebrovascular disease. One of the underlying mechanisms seems to be that shift work promotes hypertension, but results have been variable. This cross-sectional study was carried out in a group of internists with the aim of performing a paired analysis of 24 h blood pressure in the same physicians working a day shift and then a night shift, and a paired analysis of clock gene expression after a night of rest and a night of work. Each participant wore an ambulatory blood pressure monitor (ABPM) twice. The first time was for a 24 h period that included a 12 h day shift (08.00-20.00) and a night of rest. The second time was for a 30 h period that included a day of rest, a night shift (20.00-08.00), and a subsequent period of rest (08.00-14.00). Subjects underwent fasting blood sampling twice: after the night of rest and after the night shift. Night shift work significantly increased night systolic blood pressure (SBP), night diastolic blood pressure (DBP), and heart rate (HR) and decreased their respective nocturnal decline. Clock gene expression increased after the night shift. There was a direct association between night blood pressure and clock gene expression. Night shifts lead to an increase in blood pressure, non-dipping status, and circadian rhythm misalignment. Blood pressure is associated with clock genes and circadian rhythm misalignement.
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Affiliation(s)
- Barbara Toffoli
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Federica Tonon
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Fabiola Giudici
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Tommaso Ferretti
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Elena Ghirigato
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Matilde Contessa
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Morena Francica
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Riccardo Candido
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
- SC Patologie Diabetiche, ASUGI, 34100 Trieste, Italy
| | - Massimo Puato
- SSD Angiologia e Fisiologia Clinica Vascolare Multidisciplinare Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Andrea Grillo
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
- UCO Medicina Clinica, ASUGI Azienda Sanitaria Universitaria Giuliano-Isontina, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Bruno Fabris
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
- UCO Medicina Clinica, ASUGI Azienda Sanitaria Universitaria Giuliano-Isontina, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
| | - Stella Bernardi
- Department of Medical Surgical and Health Sciences, University of Trieste, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
- UCO Medicina Clinica, ASUGI Azienda Sanitaria Universitaria Giuliano-Isontina, Cattinara Teaching Hospital, Strada di Fiume 447, 34149 Trieste, Italy
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27
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Zečević K, Popović N, Vuksanović Božarić A, Vukmirović M, Rizzo M, Muzurović E. Timing Is Important-Management of Metabolic Syndrome According to the Circadian Rhythm. Biomedicines 2023; 11:biomedicines11041171. [PMID: 37189789 DOI: 10.3390/biomedicines11041171] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/01/2023] [Accepted: 04/10/2023] [Indexed: 05/17/2023] Open
Abstract
Physiological processes occur in accordance with a rhythm regulated by the endogenous biological clock. This clock is programmed at the molecular level and synchronized with the daily light-dark cycle, as well as activities such as feeding, exercise, and social interactions. It consists of the core clock genes, Circadian Locomotor Output Cycles Protein Kaput (CLOCK) and Brain and Muscle Arnt-Like protein 1 (BMAL1), and their products, the period (PER) and cryptochrome (CRY) proteins, as well as an interlocked feedback loop which includes reverse-strand avian erythroblastic leukemia (ERBA) oncogene receptors (REV-ERBs) and retinoic acid-related orphan receptors (RORs). These genes are involved in the regulation of metabolic pathways and hormone release. Therefore, circadian rhythm disruption leads to development of metabolic syndrome (MetS). MetS refers to a cluster of risk factors (RFs), which are not only associated with the development of cardiovascular (CV) disease (CVD), but also with increased all-cause mortality. In this review, we consider the importance of the circadian rhythm in the regulation of metabolic processes, the significance of circadian misalignment in the pathogenesis of MetS, and the management of MetS in relation to the cellular molecular clock.
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Affiliation(s)
- Ksenija Zečević
- Faculty of Medicine, University of Montenegro, 81000 Podgorica, Montenegro
| | - Nataša Popović
- Faculty of Medicine, University of Montenegro, 81000 Podgorica, Montenegro
| | | | - Mihailo Vukmirović
- Faculty of Medicine, University of Montenegro, 81000 Podgorica, Montenegro
- Cardiology Clinic, Clinical Center of Montenegro, 81000 Podgorica, Montenegro
| | - Manfredi Rizzo
- Promise Department, School of Medicine, University of Palermo, 90127 Palermo, Italy
| | - Emir Muzurović
- Faculty of Medicine, University of Montenegro, 81000 Podgorica, Montenegro
- Department of Internal Medicine, Endocrinology Section, Clinical Center of Montenegro, 81000 Podgorica, Montenegro
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28
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Butel-Simoes LE, Haw TJ, Williams T, Sritharan S, Gadre P, Herrmann SM, Herrmann J, Ngo DTM, Sverdlov AL. Established and Emerging Cancer Therapies and Cardiovascular System: Focus on Hypertension-Mechanisms and Mitigation. Hypertension 2023; 80:685-710. [PMID: 36756872 PMCID: PMC10023512 DOI: 10.1161/hypertensionaha.122.17947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Cardiovascular disease and cancer are 2 of the leading causes of death worldwide. Although improvements in outcomes have been noted for both disease entities, the success of cancer therapies has come at the cost of at times very impactful adverse events such as cardiovascular events. Hypertension has been noted as both, a side effect as well as a risk factor for the cardiotoxicity of cancer therapies. Some of these dynamics are in keeping with the role of hypertension as a cardiovascular risk factor not only for heart failure, but also for the development of coronary and cerebrovascular disease, and kidney disease and its association with a higher morbidity and mortality overall. Other aspects such as the molecular mechanisms underlying the amplification of acute and long-term cardiotoxicity risk of anthracyclines and increase in blood pressure with various cancer therapeutics remain to be elucidated. In this review, we cover the latest clinical data regarding the risk of hypertension across a spectrum of novel anticancer therapies as well as the underlying known or postulated pathophysiological mechanisms. Furthermore, we review the acute and long-term implications for the amplification of the development of cardiotoxicity with drugs not commonly associated with hypertension such as anthracyclines. An outline of management strategies, including pharmacological and lifestyle interventions as well as models of care aimed to facilitate early detection and more timely management of hypertension in patients with cancer and survivors concludes this review, which overall aims to improve both cardiovascular and cancer-specific outcomes.
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Affiliation(s)
- Lloyd E Butel-Simoes
- Cardiovascular Department, John Hunter Hospital, Newcastle, NSW, Australia
- College of Health and Medicine, University of Newcastle, NSW Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW Australia
| | - Tatt Jhong Haw
- College of Health and Medicine, University of Newcastle, NSW Australia
- Newcastle Centre of Excellence in Cardio-Oncology, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW Australia
| | - Trent Williams
- College of Health and Medicine, University of Newcastle, NSW Australia
- Newcastle Centre of Excellence in Cardio-Oncology, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW Australia
| | - Shanathan Sritharan
- Department of Medicine, Hunter New England Local Health District, NSW, Australia
| | - Payal Gadre
- Department of Medicine, Hunter New England Local Health District, NSW, Australia
| | - Sandra M Herrmann
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
| | - Joerg Herrmann
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN 55902, USA
| | - Doan TM Ngo
- College of Health and Medicine, University of Newcastle, NSW Australia
- Newcastle Centre of Excellence in Cardio-Oncology, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW Australia
| | - Aaron L Sverdlov
- Cardiovascular Department, John Hunter Hospital, Newcastle, NSW, Australia
- College of Health and Medicine, University of Newcastle, NSW Australia
- Newcastle Centre of Excellence in Cardio-Oncology, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW Australia
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29
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Smith D, Layton A. The intrarenal renin-angiotensin system in hypertension: insights from mathematical modelling. J Math Biol 2023; 86:58. [PMID: 36952058 DOI: 10.1007/s00285-023-01891-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/14/2023] [Accepted: 02/21/2023] [Indexed: 03/24/2023]
Abstract
The renin-angiotensin system (RAS) plays a pivotal role in the maintenance of volume homeostasis and blood pressure. In addition to the well-studied systemic RAS, local RAS have been documented in various tissues, including the kidney. Given the role of the intrarenal RAS in the pathogenesis of hypertension, a role established via various pharmacologic and genetic studies, substantial efforts have been made to unravel the processes that govern intrarenal RAS activity. In particular, several mechanisms have been proposed to explain the rise in intrarenal angiotensin II (Ang II) that accompanies Ang II infusion, including increased angiotensin type 1 receptor (AT1R)-mediated uptake of Ang II and enhanced intrarenal Ang II production. However, experimentally isolating their contribution to the intrarenal accumulation of Ang II in Ang II-induced hypertension is challenging, given that they are fundamentally connected. Computational modelling is advantageous because the feedback underlying each mechanism can be removed and the effect on intrarenal Ang II can be studied. In this work, the mechanisms governing the intrarenal accumulation of Ang II during Ang II infusion experiments are delineated and the role of the intrarenal RAS in Ang II-induced hypertension is studied. To accomplish this, a compartmental ODE model of the systemic and intrarenal RAS is developed and Ang II infusion experiments are simulated. Simulations indicate that AT1R-mediated uptake of Ang II is the primary mechanism by which Ang II accumulates in the kidney during Ang II infusion. Enhanced local Ang II production is unnecessary. The results demonstrate the role of the intrarenal RAS in the pathogenesis of Ang II-induced hypertension and consequently, clinical hypertension associated with an overactive RAS.
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Affiliation(s)
- Delaney Smith
- Department of Applied Mathematics, University of Waterloo, 200 University Ave, Waterloo, ON, N2L 3G1, Canada.
| | - Anita Layton
- Department of Applied Mathematics, University of Waterloo, 200 University Ave, Waterloo, ON, N2L 3G1, Canada
- Cheriton School of Computer Science, University of Waterloo, 200 University Ave, Waterloo, ON, N2L 3G1, Canada
- Department of Biology, University of Waterloo, 200 University Ave, Waterloo, ON, N2L 3G1, Canada
- School of Pharmacy, University of Waterloo, 200 University Ave, Waterloo, ON, N2L 3G1, Canada
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30
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Berry MH, Moldavan M, Garrett T, Meadows M, Cravetchi O, White E, Leffler J, von Gersdorff H, Wright KM, Allen CN, Sivyer B. A melanopsin ganglion cell subtype forms a dorsal retinal mosaic projecting to the supraoptic nucleus. Nat Commun 2023; 14:1492. [PMID: 36932080 PMCID: PMC10023714 DOI: 10.1038/s41467-023-36955-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 02/24/2023] [Indexed: 03/19/2023] Open
Abstract
Visual input to the hypothalamus from intrinsically photosensitive retinal ganglion cells (ipRGCs) influences several functions including circadian entrainment, body temperature, and sleep. ipRGCs also project to nuclei such as the supraoptic nucleus (SON), which is involved in systemic fluid homeostasis, maternal behavior, social behaviors, and appetite. However, little is known about the SON-projecting ipRGCs or their relationship to well-characterized ipRGC subtypes. Using a GlyT2Cre mouse line, we show a subtype of ipRGCs restricted to the dorsal retina that selectively projects to the SON. These ipRGCs tile a dorsal region of the retina, forming a substrate for encoding ground luminance. Optogenetic activation of their axons demonstrates they release the neurotransmitter glutamate in multiple regions, including the suprachiasmatic nucleus (SCN) and SON. Our results challenge the idea that ipRGC dendrites overlap to optimize photon capture and suggests non-image forming vision operates to sample local regions of the visual field to influence diverse behaviors.
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Affiliation(s)
- Michael H Berry
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
- Medical Scientist Training Program, Oregon Health & Science University, Portland, OR, USA
| | - Michael Moldavan
- Oregon Institute of Occupational Health Sciences, Oregon Health and Science University, Portland, OR, USA
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - Tavita Garrett
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
- Neuroscience Graduate program, Oregon Health & Science University, Portland, OR, USA
| | - Marc Meadows
- Neuroscience Graduate program, Oregon Health & Science University, Portland, OR, USA
- Vollum Institute, Oregon Health & Science University, Portland, OR, USA
| | - Olga Cravetchi
- Oregon Institute of Occupational Health Sciences, Oregon Health and Science University, Portland, OR, USA
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - Elizabeth White
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
| | - Joseph Leffler
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
| | - Henrique von Gersdorff
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA
- Vollum Institute, Oregon Health & Science University, Portland, OR, USA
- Department of Chemical Physiology and Biochemistry, Oregon Health & Science University, Portland, OR, USA
| | - Kevin M Wright
- Vollum Institute, Oregon Health & Science University, Portland, OR, USA
| | - Charles N Allen
- Oregon Institute of Occupational Health Sciences, Oregon Health and Science University, Portland, OR, USA
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - Benjamin Sivyer
- Department of Ophthalmology, Casey Eye Institute, Oregon Health & Science University, Portland, OR, USA.
- Department of Chemical Physiology and Biochemistry, Oregon Health & Science University, Portland, OR, USA.
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Bradshaw JL, Cushen SC, Ricci CA, Tucker SM, Gardner JJ, Little JT, Osikoya O, Goulopoulou S. Gestational exposure to unmethylated CpG oligonucleotides dysregulates placental molecular clock network and fetoplacental growth dynamics, and disrupts maternal blood pressure circadian rhythms in rats. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.14.532649. [PMID: 36993698 PMCID: PMC10055100 DOI: 10.1101/2023.03.14.532649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Bacterial infections and impaired mitochondrial DNA dynamics are associated with adverse pregnancy outcomes. Unmethylated cytosine-guanine dinucleotide (CpG) motifs are common in bacterial and mitochondrial DNA and act as potent immunostimulators. Here, we tested the hypothesis that exposure to CpG oligonucleotides (ODN) during pregnancy would disrupt blood pressure circadian rhythms and the placental molecular clock machinery, mediating aberrant fetoplacental growth dynamics. Rats were repeatedly treated with CpG ODN in the 3 rd trimester (gestational day, GD, 14, 16, 18) and euthanized on GD20 (near term) or with a single dose of CpG ODN and euthanized 4 hours after treatment on GD14. Hemodynamic circadian rhythms were analyzed via Lomb-Scargle periodogram analysis on 24-h raw data collected continuously via radiotelemetry. A p -value ≥ 0.05 indicates the absence of a circadian rhythm. Following the first treatment with CpG ODN, maternal systolic and diastolic blood pressure circadian rhythms were lost ( p ≥ 0.05). Blood pressure circadian rhythm was restored by GD16 and remained unaffected after the second treatment with CpG ODN ( p < 0.0001). Diastolic blood pressure circadian rhythm was again lost after the last treatment on GD18 ( p ≥ 0.05). CpG ODN increased placental expression of Per2 and Per3 and Tnfα ( p ≤ 0.05) and affected fetoplacental growth dynamics, such as reduced fetal and placental weights were disproportionately associated with increases in the number of resorptions in ODN-treated dams compared to controls. In conclusion, gestational exposure to unmethylated CpG DNA dysregulates placental molecular clock network and fetoplacental growth dynamics and disrupts blood pressure circadian rhythms.
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Tang D, Tang Q, Huang W, Zhang Y, Tian Y, Fu X. Fasting: From Physiology to Pathology. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204487. [PMID: 36737846 PMCID: PMC10037992 DOI: 10.1002/advs.202204487] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 01/06/2023] [Indexed: 06/18/2023]
Abstract
Overnutrition is a risk factor for various human diseases, including neurodegenerative diseases, metabolic disorders, and cancers. Therefore, targeting overnutrition represents a simple but attractive strategy for the treatment of these increasing public health threats. Fasting as a dietary intervention for combating overnutrition has been extensively studied. Fasting has been practiced for millennia, but only recently have its roles in the molecular clock, gut microbiome, and tissue homeostasis and function emerged. Fasting can slow aging in most species and protect against various human diseases, including neurodegenerative diseases, metabolic disorders, and cancers. These centuried and unfading adventures and explorations suggest that fasting has the potential to delay aging and help prevent and treat diseases while minimizing side effects caused by chronic dietary interventions. In this review, recent animal and human studies concerning the role and underlying mechanism of fasting in physiology and pathology are summarized, the therapeutic potential of fasting is highlighted, and the combination of pharmacological intervention and fasting is discussed as a new treatment regimen for human diseases.
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Affiliation(s)
- Dongmei Tang
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China HospitalSichuan University and Collaborative Innovation Center of BiotherapyChengduSichuan610041China
| | - Qiuyan Tang
- Neurology Department of Integrated Traditional Chinese and Western Medicine, School of Clinical MedicineChengdu University of Traditional Chinese MedicineChengduSichuan610075China
| | - Wei Huang
- West China Centre of Excellence for PancreatitisInstitute of Integrated Traditional Chinese and Western MedicineWest China‐Liverpool Biomedical Research CentreWest China HospitalSichuan UniversityChengduSichuan610041China
| | - Yuwei Zhang
- Division of Endocrinology and MetabolismWest China HospitalSichuan UniversityChengduSichuan610041China
| | - Yan Tian
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China HospitalSichuan University and Collaborative Innovation Center of BiotherapyChengduSichuan610041China
| | - Xianghui Fu
- Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China HospitalSichuan University and Collaborative Innovation Center of BiotherapyChengduSichuan610041China
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Bingham MA, Neijman K, Yang CR, Aponte A, Mak A, Kikuchi H, Jung HJ, Poll BG, Raghuram V, Park E, Chou CL, Chen L, Leipziger J, Knepper MA, Dona M. Circadian gene expression in mouse renal proximal tubule. Am J Physiol Renal Physiol 2023; 324:F301-F314. [PMID: 36727945 PMCID: PMC9988533 DOI: 10.1152/ajprenal.00231.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 01/18/2023] [Accepted: 01/26/2023] [Indexed: 02/03/2023] Open
Abstract
Circadian variability in kidney function is well recognized but is often ignored as a potential confounding variable in physiological experiments. Here, we have created a data resource consisting of expression levels for mRNA transcripts in microdissected proximal tubule segments from mice as a function of the time of day. Small-sample RNA sequencing was applied to microdissected S1 proximal convoluted tubules and S2 proximal straight tubules. After stringent filtering, the data were analyzed using JTK-Cycle to detect periodicity. The data set is provided as a user-friendly webpage at https://esbl.nhlbi.nih.gov/Databases/Circadian-Prox2/. In proximal convoluted tubules, 234 transcripts varied in a circadian manner (4.0% of the total). In proximal straight tubules, 334 transcripts varied in a circadian manner (5.3%). Transcripts previously known to be associated with corticosteroid action and with increased flow were found to be overrepresented among circadian transcripts peaking during the "dark" portion of the day [zeitgeber time (ZT)14-22], corresponding to peak levels of corticosterone and glomerular filtration rate in mice. To ask whether there is a time-of-day dependence of protein abundances in the kidney, we carried out LC-MS/MS-based proteomics in whole mouse kidneys at ZT12 and ZT0. The full data set (n = 6,546 proteins) is available at https://esbl.nhlbi.nih.gov/Databases/Circadian-Proteome/. Overall, 293 proteins were differentially expressed between ZT12 and ZT0 (197 proteins greater at ZT12 and 96 proteins greater at ZT0). Among the regulated proteins, only nine proteins were found to be periodic in the RNA-sequencing analysis, suggesting a high level of posttranscriptional regulation of protein abundances.NEW & NOTEWORTHY Circadian variation in gene expression can be an important determinant in the regulation of kidney function. The authors used RNA-sequencing transcriptomics and LC-MS/MS-based proteomics to identify gene products expressed in a periodic manner. The data were used to construct user-friendly web resources.
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Affiliation(s)
- Molly A Bingham
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Kim Neijman
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Chin-Rang Yang
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Angel Aponte
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Angela Mak
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Hiroaki Kikuchi
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Hyun Jun Jung
- Division of Nephrology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
| | - Brian G Poll
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Viswanathan Raghuram
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Euijung Park
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Chung-Lin Chou
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Lihe Chen
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Jens Leipziger
- Department of Biomedicine, Physiology, Aarhus University, Aarhus, Denmark
| | - Mark A Knepper
- Systems Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland, United States
| | - Margo Dona
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
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Gumz ML, Shimbo D, Abdalla M, Balijepalli RC, Benedict C, Chen Y, Earnest DJ, Gamble KL, Garrison SR, Gong MC, Hogenesch JB, Hong Y, Ivy JR, Joe B, Laposky AD, Liang M, MacLaughlin EJ, Martino TA, Pollock DM, Redline S, Rogers A, Dan Rudic R, Schernhammer ES, Stergiou GS, St-Onge MP, Wang X, Wright J, Oh YS. Toward Precision Medicine: Circadian Rhythm of Blood Pressure and Chronotherapy for Hypertension - 2021 NHLBI Workshop Report. Hypertension 2023; 80:503-522. [PMID: 36448463 PMCID: PMC9931676 DOI: 10.1161/hypertensionaha.122.19372] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Healthy individuals exhibit blood pressure variation over a 24-hour period with higher blood pressure during wakefulness and lower blood pressure during sleep. Loss or disruption of the blood pressure circadian rhythm has been linked to adverse health outcomes, for example, cardiovascular disease, dementia, and chronic kidney disease. However, the current diagnostic and therapeutic approaches lack sufficient attention to the circadian rhythmicity of blood pressure. Sleep patterns, hormone release, eating habits, digestion, body temperature, renal and cardiovascular function, and other important host functions as well as gut microbiota exhibit circadian rhythms, and influence circadian rhythms of blood pressure. Potential benefits of nonpharmacologic interventions such as meal timing, and pharmacologic chronotherapeutic interventions, such as the bedtime administration of antihypertensive medications, have recently been suggested in some studies. However, the mechanisms underlying circadian rhythm-mediated blood pressure regulation and the efficacy of chronotherapy in hypertension remain unclear. This review summarizes the results of the National Heart, Lung, and Blood Institute workshop convened on October 27 to 29, 2021 to assess knowledge gaps and research opportunities in the study of circadian rhythm of blood pressure and chronotherapy for hypertension.
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Affiliation(s)
- Michelle L Gumz
- Department of Physiology and Aging; Center for Integrative Cardiovascular and Metabolic Disease, Department of Medicine, Division of Nephrology, Hypertension and Renal Transplantation, University of Florida, Gainesville, FL (M.L.G.)
| | - Daichi Shimbo
- Department of Medicine, The Columbia Hypertension Center, Columbia University Irving Medical Center, New York, NY (D.S.)
| | - Marwah Abdalla
- Department of Medicine, Center for Behavioral Cardiovascular Health, Columbia University Irving Medical Center, New York, NY (M.A.)
| | - Ravi C Balijepalli
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD (R.C.B., Y.H., J.W., Y.S.O.)
| | - Christian Benedict
- Department of Pharmaceutical Biosciences, Molecular Neuropharmacology, Uppsala University, Sweden (C.B.)
| | - Yabing Chen
- Department of Pathology, University of Alabama at Birmingham, and Research Department, Birmingham VA Medical Center, AL (Y.C.)
| | - David J Earnest
- Department of Neuroscience & Experimental Therapeutics, Texas A&M University, Bryan, TX (D.J.E.)
| | - Karen L Gamble
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, AL (K.L.G.)
| | - Scott R Garrison
- Department of Family Medicine, University of Alberta, Canada (S.R.G.)
| | - Ming C Gong
- Department of Physiology, University of Kentucky, Lexington, KY (M.C.G.)
| | | | - Yuling Hong
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD (R.C.B., Y.H., J.W., Y.S.O.)
| | - Jessica R Ivy
- University/British Heart Foundation Centre for Cardiovascular Science, The Queen's Medical Research Institute, The University of Edinburgh, United Kingdom (J.R.I.)
| | - Bina Joe
- Department of Physiology and Pharmacology and Center for Hypertension and Precision Medicine, University of Toledo College of Medicine and Life Sciences, OH (B.J.)
| | - Aaron D Laposky
- National Center on Sleep Disorders Research, Division of Lung Diseases, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD (A.D.L.)
| | - Mingyu Liang
- Center of Systems Molecular Medicine, Department of Physiology, Medical College of Wisconsin, Milwaukee, WI (M.L.)
| | - Eric J MacLaughlin
- Department of Pharmacy Practice, Texas Tech University Health Sciences Center, Amarillo, TX (E.J.M.)
| | - Tami A Martino
- Center for Cardiovascular Investigations, Department of Biomedical Sciences, University of Guelph, Ontario, Canada (T.A.M.)
| | - David M Pollock
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, AL (D.M.P.)
| | - Susan Redline
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (S.R.)
| | - Amy Rogers
- Division of Molecular and Clinical Medicine, University of Dundee, United Kingdom (A.R.)
| | - R Dan Rudic
- Department of Pharmacology and Toxicology, Augusta University, GA (R.D.R.)
| | - Eva S Schernhammer
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (E.S.S.)
| | - George S Stergiou
- Hypertension Center, STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece (G.S.S.)
| | - Marie-Pierre St-Onge
- Division of General Medicine, Department of Medicine, Columbia University Irving Medical Center' New York, NY (M.-P.S.-O.)
| | - Xiaoling Wang
- Georgia Prevention Institute, Department of Medicine, Augusta University, GA (X.W.)
| | - Jacqueline Wright
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD (R.C.B., Y.H., J.W., Y.S.O.)
| | - Young S Oh
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD (R.C.B., Y.H., J.W., Y.S.O.)
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Costello HM, Juffre A, Cheng KY, Bratanatawira P, Crislip GR, Zietara A, Spires DR, Staruschenko A, Douma LG, Gumz ML. The circadian clock protein PER1 is important in maintaining endothelin axis regulation in Dahl salt-sensitive rats. Can J Physiol Pharmacol 2023; 101:136-146. [PMID: 36450128 PMCID: PMC9992312 DOI: 10.1139/cjpp-2022-0134] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Endothelin-1 (ET-1) is a peptide hormone that acts on its receptors to regulate sodium handling in the kidney's collecting duct. Dysregulation of the endothelin axis is associated with various diseases, including salt-sensitive hypertension and chronic kidney disease. Previously, our lab has shown that the circadian clock gene PER1 regulates ET-1 levels in mice. However, the regulation of ET-1 by PER1 has never been investigated in rats. Therefore, we used a novel model where knockout of Per1 was performed in Dahl salt-sensitive rat background (SS Per1 -/-) to test a hypothesis that PER1 regulates the ET-1 axis in this model. Here, we show increased renal ET-1 peptide levels and altered endothelin axis gene expression in several tissues, including the kidney, adrenal glands, and liver in SS Per1 -/- compared with control SS rats. Edn1 antisense lncRNA Edn1-AS, which has previously been suggested to be regulated by PER1, was also altered in SS Per1 -/- rats compared with control SS rats. These data further support the hypothesis that PER1 is a negative regulator of Edn1 and is important in the regulation of the endothelin axis in a tissue-specific manner.
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Affiliation(s)
- Hannah M. Costello
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610
| | - Alexandria Juffre
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610
| | - Kit-Yan Cheng
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610
| | - Phillip Bratanatawira
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610
| | - G. Ryan Crislip
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610
| | - Adrian Zietara
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53226
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33602
| | - Denisha R. Spires
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53226
| | - Alexander Staruschenko
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33602
- James A. Haley Veterans’ Hospital, Tampa, FL 33612
| | - Lauren G. Douma
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610
| | - Michelle L. Gumz
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610
- Center for Integrative Cardiovascular and Metabolic Diseases, University of Florida, Gainesville, FL 32610
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36
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Kamga Fogno AW, Rouquette A, Gronfier C, Bernard JY, Plancoulaine S. Associations between screen use, outdoor time/daylight exposure and sleep changes during the first COVID-19 lockdown in French children from the ELFE and EPIPAGE2 birth cohorts. CNS Neurosci Ther 2023; 29:1649-1656. [PMID: 36807866 PMCID: PMC10173720 DOI: 10.1111/cns.14128] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/08/2023] [Accepted: 02/08/2023] [Indexed: 02/22/2023] Open
Abstract
AIMS To investigate associations between outdoor and screen time and changes in sleep patterns in children from two nationwide birth-cohorts in the SAPRIS project. METHODS During the first French COVID-19 pandemic lockdown, volunteer parents of children enrolled in the ELFE and EPIPAGE2 birth-cohorts completed online questions about their child's outdoor time, screen time, and changes in sleep duration and quality compared with the pre-lockdown situation. In 5700 children (aged 8-9 years, 52% boys) with available data, we assessed associations between outdoor time, screen time, and sleep changes using multinomial logistic regression models adjusted for confounders. RESULTS Children spent on average 3 h08 outdoors and 4 h34 using screens/day (3 h27 for leisure, 1 h07 for class-work). Sleep duration increased in 36% of children and decreased in 13.4%; sleep difficulties appeared/increased in 22.5% and decreased/disappeared/remained stable in 18.3%. After adjustment, increased screen time, especially for leisure, was associated with increased and decreased sleep duration (OR(95%CI) = 1.03(1.00-1.06) and OR = 1.06(1.02-1.10), respectively). No association was observed between outdoor time and sleep changes after adjustment. CONCLUSIONS Our study adds evidence for the association between high leisure-time screen time and shorter sleep time. It supports current screen guidelines for children, especially during leisure time and for those whose sleep duration is short.
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Affiliation(s)
- Alex Wilfried Kamga Fogno
- Université Paris Cité and Université Sorbonne Paris Nord, Inserm, INRAE, Center for Research in Epidemiology and StatisticS (CRESS), Paris, France
| | - Alexandra Rouquette
- Université Paris-Saclay, UVSQ, Inserm U1018, CESP, Paris, France.,AP-HP Paris-Saclay, Hôpital du Kremlin Bicêtre, Service de Santé Publique et d'Epidemiologie, Le Kremlin Bicêtre, France
| | - Claude Gronfier
- Université Claude Bernard Lyon 1, INSERM, CRNS, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, Bron, France
| | - Jonathan Y Bernard
- Université Paris Cité and Université Sorbonne Paris Nord, Inserm, INRAE, Center for Research in Epidemiology and StatisticS (CRESS), Paris, France.,Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Sabine Plancoulaine
- Université Paris Cité and Université Sorbonne Paris Nord, Inserm, INRAE, Center for Research in Epidemiology and StatisticS (CRESS), Paris, France.,Université Claude Bernard Lyon 1, INSERM, CRNS, Centre de Recherche en Neurosciences de Lyon CRNL U1028 UMR5292, Bron, France
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Xu Y, Gong C, Liao J, Ge Z, Tan Y, Jiang Y, Liu M, Zhong W, Zhang X, Dong N, Shen X. Absence of fluctuation and inverted circadian rhythm of blood pressure increase the risk of cognitive dysfunction in cerebral small vessel disease patients. BMC Neurol 2023; 23:73. [PMID: 36793019 PMCID: PMC9930256 DOI: 10.1186/s12883-023-03107-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 02/03/2023] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND AND PURPOSE Cerebral small vessel disease (CSVD) is a common cause of stroke and senile vascular cognitive impairment, imposing a heavy burden on public health care systems worldwide. Hypertension and 24-hour blood pressure variability (BPV), known to be significant risk factors for cognitive dysfunction, have been found to be associated with cognitive function in CSVD patients in previous studies. However, as a derived part of BPV, there are few studies on the relationship between circadian rhythm of blood pressure and cognitive dysfunction in CSVD patients, and the relationship between them is still unclear. Thus, this study aimed to investigate whether the disturbance of circadian rhythm of blood pressure can affect the cognitive function of patients with CSVD. METHODS A total of 383 CSVD patients hospitalized in the Geriatrics Department of the Lianyungang Second People's Hospital between May 2018 and June 2022 were enrolled in this study. The clinical information and parameters of 24-hour ambulatory blood pressure monitoring were compared between the cognitive dysfunction group (n = 224) and the normal group (n = 159). Finally, a binary logistic regression model was used to assess the relationship between circadian rhythm of blood pressure and cognitive dysfunction in patients with CSVD. RESULTS (1) Patients in the cognitive dysfunction group were older, had lower blood pressure on admission, and had a greater number of previous cardiovascular and cerebrovascular diseases (P < 0.05). (2) More patients in the cognitive dysfunction group had circadian rhythm abnormalities in blood pressure, especially the non-dipper and reverse-dipper types (P < 0.001). (3) In the elderly, there was a statistical difference in the circadian rhythm of blood pressure between the cognitive dysfunction group and the normal group, but this phenomenon did not exist in the middle-aged. (4) Binary logistic regression analysis showed that after adjusting for confounding factors, the risk of cognitive dysfunction in CSVD patients with non-dipper type was 4.052 times higher than that of dipper type (95% CI, 1.782-9.211; P = 0.001), and reverse-dipper type was 8.002 times higher than those with dipper type (95% CI, 3.367-19.017; P<0.001). CONCLUSIONS The disturbance of circadian rhythm of blood pressure may affect the cognitive function of patients with CSVD, and the risk of cognitive dysfunction in non-dipper and reverse-dipper types are higher.
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Affiliation(s)
- Yiwen Xu
- grid.440785.a0000 0001 0743 511XDepartment of Geriatrics, Lianyungang Hospital affiliated to Jiangsu University (Lianyungang Second People’s Hospital), Lianyungang, 222000 China
| | - Chen Gong
- grid.440785.a0000 0001 0743 511XDepartment of Geriatrics, Lianyungang Hospital affiliated to Jiangsu University (Lianyungang Second People’s Hospital), Lianyungang, 222000 China
| | - Jingxian Liao
- grid.440785.a0000 0001 0743 511XDepartment of Geriatrics, Lianyungang Hospital affiliated to Jiangsu University (Lianyungang Second People’s Hospital), Lianyungang, 222000 China
| | - Zhonglin Ge
- Department of Neurology, Lianyungang Second People’s Hospital, Lianyungang, China
| | - Yu Tan
- Department of Neurology, Lianyungang Second People’s Hospital, Lianyungang, China
| | - Yi Jiang
- grid.252957.e0000 0001 1484 5512Department of Geriatrics, Lianyungang Hospital affiliated to Bengbu Medical College (Lianyungang Second People’s Hospital), Lianyungang, China
| | - Mengqian Liu
- grid.440785.a0000 0001 0743 511XDepartment of Geriatrics, Lianyungang Hospital affiliated to Jiangsu University (Lianyungang Second People’s Hospital), Lianyungang, 222000 China
| | - Wen Zhong
- grid.440785.a0000 0001 0743 511XDepartment of Geriatrics, Lianyungang Hospital affiliated to Jiangsu University (Lianyungang Second People’s Hospital), Lianyungang, 222000 China
| | - Xianxian Zhang
- grid.459351.fDepartment of Neurology, The Sixth Affiliated Hospital of Nantong University, Yancheng Third People’s Hospital, Yancheng, China
| | - Nan Dong
- Department of Neurology, Suzhou Industrial Park Xinghai Hospital, Suzhou, China
| | - Xiaozhu Shen
- Department of Geriatrics, Lianyungang Hospital affiliated to Jiangsu University (Lianyungang Second People's Hospital), Lianyungang, 222000, China.
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Jones L, Blair J, Hawcutt DB, Lip GYH, Shantsila A. Hypertension in Turner syndrome: a review of proposed mechanisms, management and new directions. J Hypertens 2023; 41:203-211. [PMID: 36583347 DOI: 10.1097/hjh.0000000000003321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Acquired cardiovascular diseases account for much of the increased risk of premature death in patients with Turner syndrome (TS). Hypertension is a major modifiable cardiovascular risk factor. It has a high prevalence in TS developing at an early age and thus leading to prolonged exposure to high blood pressure. The aetiology for hypertension in TS is largely unknown. It is likely multifactorial, and recent hypotheses include altered sympathetic tone, vasculopathy and endocrine factors. In this review article we aim to provide a comprehensive review of data on mechanisms of hypertension in TS and their implication for diagnostics and optimal choice of antihypertensive treatments. Ultimately this knowledge should help prevent hypertension-related complications, and improve quality of life and life expectancy for patients with TS.
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Affiliation(s)
- Lily Jones
- Department of Women's and Children's Health, University of Liverpool
| | - Joanne Blair
- Department of Endocrinology, Alder Hey Children's NHS Foundation Trust
| | - Daniel B Hawcutt
- Department of Women's and Children's Health, University of Liverpool
- NIHR Alder Hey Clinical Research Facility, Alder Hey Children's NHS Foundation Trust
| | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK
| | - Alena Shantsila
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK
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Facanha CFS, Alencar VS, Machado PS, Macêdo RBL, de Bruin PFC, Costa E Forti A, Rocha TM, de Bruin VMS. Morningness/eveningness in gestational diabetes mellitus: clinical characteristics and maternal-neonatal outcomes. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2023; 67:92-100. [PMID: 36155121 PMCID: PMC9983797 DOI: 10.20945/2359-3997000000515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Objective This study aims to evaluate the impact of morning-evening preference in pregnancy outcomes in gestational diabetes mellitus (GDM). Methods This is a prospective cohort study of 2nd-3rd trimester GDM outpatient care in Fortaleza, Brazil (2018-2020). Eveningness was defined by the Horne-Östberg Morningness-Eveningness-Questionnaire (MEQ ≤ 41). Furthermore, we obtained a 7-day actigraphic register. Subjective sleep quality, daytime somnolence, insomnia, fatigue and depressive symptoms were also evaluated. Associations with pregnancy outcomes were investigated. Results Among 305 patients with GDM, evening preference was found in 21 (6.9%). Patients with evening preference had worse sleep quality (p < 0.01), greater severity of insomnia (p < 0.005), fatigue (p < 0.005) and depressive symptoms (<0.009). Evening chronotype was associated with preeclampsia [p = 0.01; OR = 0.27; CI 0.09-0.79] and a greater need for admission to a neonatal intensive care unit (NICU) [p = 0.02; OR = 0.23; CI .0.06-0.80]. A lower MEQ score confirmed an association with preeclampsia [p = 0.002; OR = 0.94; CI 0.90-0.97] and this was maintained after controlling for age, arterial hypertension, sleep quality, fatigue and depressive symptoms [p < 005; OR = 0.91; CI 0.87-0.95]. Conclusion In GDM, patients with evening preference had worse sleep quality, more insomnia, fatigue, and depressive symptoms. Furthermore, eveningness was independently associated with preeclampsia. These results indicate the important role of eveningness in adverse pregnancy outcomes.
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Affiliation(s)
- Cristina Figueiredo Sampaio Facanha
- Departamento de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil, ; .,Departamento de Medicina, Centro Universitário Christus, Fortaleza, CE, Brasil.,Centro Integrado de Diabetes e Hipertensão do Ceará (CIDH), Secretaria Estadual de Saúde do Ceará, Fortaleza, CE, Brasil
| | | | | | - Rejane Belchior Lima Macêdo
- Departamento de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil.,Centro Integrado de Diabetes e Hipertensão do Ceará (CIDH), Secretaria Estadual de Saúde do Ceará, Fortaleza, CE, Brasil
| | | | - Adriana Costa E Forti
- Departamento de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil.,Centro Integrado de Diabetes e Hipertensão do Ceará (CIDH), Secretaria Estadual de Saúde do Ceará, Fortaleza, CE, Brasil
| | - Thaine Mirla Rocha
- Departamento de Medicina, Centro Universitário Christus, Fortaleza, CE, Brasil
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Yao J, Liang J, Li H. Screening for key genes in circadian regulation in advanced atherosclerosis: A bioinformatic analysis. Front Cardiovasc Med 2023; 9:990757. [PMID: 36712250 PMCID: PMC9878187 DOI: 10.3389/fcvm.2022.990757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 12/28/2022] [Indexed: 01/15/2023] Open
Abstract
Background Atherosclerosis (AS) is the most important cardiovascular disease threatening human health, leading to adverse events such as myocardial infarction and stroke. The research on the pathogenesis and causes of AS is being improved step by step, and many factors are associated with AS. However, the relationship between circadian regulation and the pathogenesis of AS is still unclear. Our study identified 2 key genes of circadian regulation in AS by bioinformatics analysis, which provides new perspectives to understand the relationship between circadian rhythm and AS. Methods We downloaded samples of early and advanced AS from public databases, screened key genes by weighted gene co-expression network analysis (WGCNA) and Lasso, calculated the immune cell content of the samples using "CIBERSORT," and analyzed the relationship between key genes and immune cells. Results We obtained the most relevant core modules for advanced AS and analyzed the functions of these modules. Two circadian rhythm-related genes were obtained, which influence the immune infiltration of this late AS. ROC curves demonstrated the efficacy of key genes to differentiate between early and advanced AS. Conclusion We identified 2 genes most associated with circadian rhythms in advanced AS, whose association with AS has not been elucidated and may become the next therapeutic target.
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Affiliation(s)
- Jiali Yao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Jingyan Liang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China,Jiangsu Key Laboratory of Experimental & Translational Non-Coding RNA Research, Yangzhou University, Yangzhou, Jiangsu, China
| | - Hongliang Li
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, China,Jiangsu Key Laboratory of Experimental & Translational Non-Coding RNA Research, Yangzhou University, Yangzhou, Jiangsu, China,*Correspondence: Hongliang Li,
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Costello HM, Crislip GR, Cheng KY, Lynch IJ, Juffre A, Bratanatawira P, Mckee A, Thelwell RS, Mendez VM, Wingo CS, Douma LG, Gumz ML. Adrenal-Specific KO of the Circadian Clock Protein BMAL1 Alters Blood Pressure Rhythm and Timing of Eating Behavior. FUNCTION 2023; 4:zqad001. [PMID: 36778748 PMCID: PMC9909366 DOI: 10.1093/function/zqad001] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 01/11/2023] Open
Abstract
Brain and muscle ARNT-like 1 (BMAL1) is a core circadian clock protein and transcription factor that regulates many physiological functions, including blood pressure (BP). Male global Bmal1 knockout (KO) mice exhibit ∼10 mmHg reduction in BP, as well as a blunting of BP rhythm. The mechanisms of how BMAL1 regulates BP remains unclear. The adrenal gland synthesizes hormones, including glucocorticoids and mineralocorticoids, that influence BP rhythm. To determine the role of adrenal BMAL1 on BP regulation, adrenal-specific Bmal1 (ASCre/+ ::Bmal1) KO mice were generated using aldosterone synthase Cre recombinase to KO Bmal1 in the adrenal gland zona glomerulosa. We confirmed the localization and efficacy of the KO of BMAL1 to the zona glomerulosa. Male ASCre/+ ::Bmal1 KO mice displayed a shortened BP and activity period/circadian cycle (typically 24 h) by ∼1 h and delayed peak of BP and activity by ∼2 and 3 h, respectively, compared with littermate Cre- control mice. This difference was only evident when KO mice were in metabolic cages, which acted as a stressor, as serum corticosterone was increased in metabolic cages compared with home cages. AS Cre/+ ::Bmal1 KO mice also displayed altered diurnal variation in serum corticosterone. Furthermore, these mice have altered eating behaviors where they have a blunted night/day ratio of food intake, but no change in overall food consumed compared with controls. Overall, these data suggest that adrenal BMAL1 has a role in the regulation of BP rhythm and eating behaviors.
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Affiliation(s)
- Hannah M Costello
- Department of Physiology and Aging, University of Florida, Gainesville, FL 32610, USA
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
- Center for Integrative Cardiovascular and Metabolic Diseases, University of Florida, Gainesville, FL 32610, USA
| | - G Ryan Crislip
- Department of Physiology and Aging, University of Florida, Gainesville, FL 32610, USA
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
- Center for Integrative Cardiovascular and Metabolic Diseases, University of Florida, Gainesville, FL 32610, USA
| | - Kit-Yan Cheng
- Department of Physiology and Aging, University of Florida, Gainesville, FL 32610, USA
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
| | - I Jeanette Lynch
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
- Research, North Florida/South Georgia Malcolm Randall Veterans Affairs Medical Center, Gainesville, FL 32608, USA
| | - Alexandria Juffre
- Department of Physiology and Aging, University of Florida, Gainesville, FL 32610, USA
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610, USA
| | - Phillip Bratanatawira
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
| | - Annalisse Mckee
- Department of Physiology and Aging, University of Florida, Gainesville, FL 32610, USA
| | - Ryanne S Thelwell
- Department of Physiology and Aging, University of Florida, Gainesville, FL 32610, USA
| | - Victor M Mendez
- Department of Physiology and Aging, University of Florida, Gainesville, FL 32610, USA
| | - Charles S Wingo
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
- Research, North Florida/South Georgia Malcolm Randall Veterans Affairs Medical Center, Gainesville, FL 32608, USA
| | - Lauren G Douma
- Department of Physiology and Aging, University of Florida, Gainesville, FL 32610, USA
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
- Center for Integrative Cardiovascular and Metabolic Diseases, University of Florida, Gainesville, FL 32610, USA
| | - Michelle L Gumz
- Department of Physiology and Aging, University of Florida, Gainesville, FL 32610, USA
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
- Center for Integrative Cardiovascular and Metabolic Diseases, University of Florida, Gainesville, FL 32610, USA
- Research, North Florida/South Georgia Malcolm Randall Veterans Affairs Medical Center, Gainesville, FL 32608, USA
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610, USA
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Kamat PK, Khan MB, Smith C, Siddiqui S, Baban B, Dhandapani K, Hess DC. The time dimension to stroke: Circadian effects on stroke outcomes and mechanisms. Neurochem Int 2023; 162:105457. [PMID: 36442686 PMCID: PMC9839555 DOI: 10.1016/j.neuint.2022.105457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/14/2022] [Accepted: 11/19/2022] [Indexed: 11/26/2022]
Abstract
The circadian system is widely involved in the various pathological outcomes affected by time dimension changes. In the brain, the master circadian clock, also known as the "pacemaker," is present in the hypothalamus's suprachiasmatic nucleus (SCN). The SCN consists of molecular circadian clocks that operate in each neuron and other brain cells. These circadian mechanisms are controlled by the transcription and translation of specific genes such as the clock circadian regulator (Clock) and brain and muscle ARNT-Like 1 (Bmal1). Period (Per1-3) and cryptochrome (Cry1 and 2) negatively feedback and regulate the clock genes. Variations in the circadian cycle and these clock genes can affect stroke outcomes. Studies suggest that the peak stroke occurs in the morning after patients awaken from sleep, while stroke severity and poor outcomes worsen at midnight. The main risk factor associated with stroke is high blood pressure (hypertension). Blood pressure usually dips by 15-20% during sleep, but many hypertensives do not display this normal dipping pattern and are non-dippers. A sleep blood pressure is the primary determinant of stroke risk. This article discusses the possible mechanism associated with circadian rhythm and stroke outcomes.
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Affiliation(s)
- Pradip K Kamat
- Departments of Neurology, Medical College of Georgia, Augusta University, USA.
| | | | - Cameron Smith
- Departments of Neurology, Medical College of Georgia, Augusta University, USA
| | - Shahneela Siddiqui
- Departments of Neurology, Medical College of Georgia, Augusta University, USA
| | - Babak Baban
- Departments of Oral Biology, Dental College of Georgia, Augusta University, USA
| | - Krishnan Dhandapani
- Department of Neurosurgery, Medical College of Georgia, Augusta University, USA
| | - David C Hess
- Departments of Neurology, Medical College of Georgia, Augusta University, USA
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Cortés-Ríos J, Rodriguez-Fernandez M. Understanding the dosing-time-dependent antihypertensive effect of valsartan and aspirin through mathematical modeling. Front Endocrinol (Lausanne) 2023; 14:1110459. [PMID: 36967780 PMCID: PMC10031009 DOI: 10.3389/fendo.2023.1110459] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/08/2023] [Indexed: 03/11/2023] Open
Abstract
Chronopharmacology of arterial hypertension impacts the long-term cardiovascular risk of hypertensive subjects. Therefore, clinical and computational studies have proposed optimizing antihypertensive medications' dosing time (Ta). However, the causes and mechanisms underlying the Ta-dependency antihypertensive effect have not been elucidated. Here we propose using a Ta- dependent effect model to understand and predict the antihypertensive effect of valsartan and aspirin throughout the day in subjects with grade I or II essential hypertension. The model based on physiological regulation mechanisms includes a periodic function for each parameter that changes significantly after treatment. Circadian variations of parameters depending on the dosing time allowed the determination of regulation mechanisms dependent on the circadian rhythm that were most relevant for the action of each drug. In the case of valsartan, it is the regulation of vasodilation and systemic vascular resistance. In the case of aspirin, the antithrombotic effect generates changes in the sensitivity of systemic vascular resistance and heart rate to changes in physical activity. Dosing time-dependent models predict a more significant effect on systemic vascular resistance and blood pressure when administering valsartan or aspirin at bedtime. However, circadian dependence on the regulation mechanisms showed different sensitivity of their circadian parameters and shapes of functions, presenting different phase shifts and amplitude. Therefore, different mechanisms of action and pharmacokinetic properties of each drug can generate different profiles of Ta-dependence of antihypertensive effect and optimal dosing times.
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Papagerakis S, Said R, Ketabat F, Mahmood R, Pundir M, Lobanova L, Guenther G, Pannone G, Lavender K, McAlpin BR, Moreau A, Chen X, Papagerakis P. When the clock ticks wrong with COVID-19. Clin Transl Med 2022; 12:e949. [PMID: 36394205 PMCID: PMC9670202 DOI: 10.1002/ctm2.949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/06/2022] [Accepted: 06/11/2022] [Indexed: 11/18/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a member of the coronavirus family that causes the novel coronavirus disease first diagnosed in 2019 (COVID-19). Although many studies have been carried out in recent months to determine why the disease clinical presentations and outcomes can vary significantly from asymptomatic to severe or lethal, the underlying mechanisms are not fully understood. It is likely that unique individual characteristics can strongly influence the broad disease variability; thus, tailored diagnostic and therapeutic approaches are needed to improve clinical outcomes. The circadian clock is a critical regulatory mechanism orchestrating major physiological and pathological processes. It is generally accepted that more than half of the cell-specific genes in any given organ are under circadian control. Although it is known that a specific role of the circadian clock is to coordinate the immune system's steady-state function and response to infectious threats, the links between the circadian clock and SARS-CoV-2 infection are only now emerging. How inter-individual variability of the circadian profile and its dysregulation may play a role in the differences noted in the COVID-19-related disease presentations, and outcome remains largely underinvestigated. This review summarizes the current evidence on the potential links between circadian clock dysregulation and SARS-CoV-2 infection susceptibility, disease presentation and progression, and clinical outcomes. Further research in this area may contribute towards novel circadian-centred prognostic, diagnostic and therapeutic approaches for COVID-19 in the era of precision health.
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Affiliation(s)
- Silvana Papagerakis
- Laboratory of Oral, Head and Neck Cancer – Personalized Diagnostics and Therapeutics, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Department of Surgery, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Division of Biomedical EngineeringUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Department of Biochemistry, Microbiology and Immunology, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Department of Otolaryngology – Head and Neck Surgery, Medical SchoolThe University of MichiganAnn ArborMichiganUSA
| | - Raed Said
- Laboratory of Oral, Head and Neck Cancer – Personalized Diagnostics and Therapeutics, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Department of Surgery, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Laboratory of Precision Oral Health and Chronobiology, College of DentistryUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Department of Anatomy, Physiology and Pharmacology, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada
| | - Farinaz Ketabat
- Laboratory of Oral, Head and Neck Cancer – Personalized Diagnostics and Therapeutics, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Division of Biomedical EngineeringUniversity of SaskatchewanSaskatoonSaskatchewanCanada
| | - Razi Mahmood
- Laboratory of Oral, Head and Neck Cancer – Personalized Diagnostics and Therapeutics, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Department of Surgery, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Laboratory of Precision Oral Health and Chronobiology, College of DentistryUniversity of SaskatchewanSaskatoonSaskatchewanCanada
| | - Meenakshi Pundir
- Laboratory of Oral, Head and Neck Cancer – Personalized Diagnostics and Therapeutics, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Division of Biomedical EngineeringUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Laboratory of Precision Oral Health and Chronobiology, College of DentistryUniversity of SaskatchewanSaskatoonSaskatchewanCanada
| | - Liubov Lobanova
- Laboratory of Precision Oral Health and Chronobiology, College of DentistryUniversity of SaskatchewanSaskatoonSaskatchewanCanada
| | - Greg Guenther
- Laboratory of Oral, Head and Neck Cancer – Personalized Diagnostics and Therapeutics, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada
| | - Giuseppe Pannone
- Anatomic Pathology Unit, Department of Clinic and Experimental MedicineUniversity of FoggiaFoggiaItaly
| | - Kerry Lavender
- Department of Biochemistry, Microbiology and Immunology, College of MedicineUniversity of SaskatchewanSaskatoonSaskatchewanCanada
| | - Blake R. McAlpin
- Laboratories of Neuroimmunology, Department of Symptom Research, Division of Internal MedicineThe University of Texas MD Anderson Cancer CenterHoustonTexasUSA
| | - Alain Moreau
- Viscogliosi Laboratory in Molecular Genetics of Musculoskeletal DiseasesCentre Hospitalier Universitaire (CHU) Sainte‐Justine Research CenterMontrealQuebecCanada,Department of Stomatology, Faculty of Dentistry and Department of Biochemistry and Molecular Medicine, Faculty of MedicineUniversité de MontréalMontrealQuebecCanada
| | - Xiongbiao Chen
- Division of Biomedical EngineeringUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Department of Mechanical Engineering, School of EngineeringUniversity of SaskatchewanSaskatoonSaskatchewanCanada
| | - Petros Papagerakis
- Division of Biomedical EngineeringUniversity of SaskatchewanSaskatoonSaskatchewanCanada,Laboratory of Precision Oral Health and Chronobiology, College of DentistryUniversity of SaskatchewanSaskatoonSaskatchewanCanada
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Dosing time optimization of antihypertensive medications by including the circadian rhythm in pharmacokinetic-pharmacodynamic models. PLoS Comput Biol 2022; 18:e1010711. [DOI: 10.1371/journal.pcbi.1010711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 11/28/2022] [Accepted: 11/06/2022] [Indexed: 11/15/2022] Open
Abstract
Blood pressure (BP) follows a circadian variation, increasing during active hours, showing a small postprandial valley and a deeper decrease during sleep. Nighttime reduction of 10–20% relative to daytime BP is defined as a dipper pattern, and a reduction of less than 10%, as a non-dipper pattern. Despite this BP variability, hypertension’s diagnostic criteria and therapeutic objectives are usually based on BP average values. Indeed, studies have shown that chrono-pharmacological optimization significantly reduces long-term cardiovascular risk if a BP dipper pattern is maintained. Changes in the effect of antihypertensive medications can be explained by circadian variations in their pharmacokinetics (PK) and pharmacodynamics (PD). Nevertheless, BP circadian variation has been scarcely included in PK-PD models of antihypertensive medications to date. In this work, we developed PK-PD models that include circadian rhythm to find the optimal dosing time (Ta) of first-line antihypertensive medications for dipper and non-dipper patterns. The parameters of the PK-PD models were estimated using global optimization, and models were selected according to the lowest corrected Akaike information criterion value. Simultaneously, sensitivity and identifiability analysis were performed to determine the relevance of the parameters and establish those that can be estimated. Subsequently, Ta parameters were optimized to maximize the effect on BP average, BP peaks, and sleep-time dip. As a result, all selected models included at least one circadian PK component, and circadian parameters had the highest sensitivity. Furthermore, Ta with which BP>130/80 mmHg and a dip of 10–20% are achieved were proposed when possible. We show that the optimal Ta depends on the therapeutic objective, the medication, and the BP profile. Therefore, our results suggest making chrono-pharmacological recommendations in a personalized way.
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Xiao Z, Xu C, Liu Q, Yan Q, Liang J, Weng Z, Zhang X, Xu J, Hang D, Gu A. Night Shift Work, Genetic Risk, and Hypertension. Mayo Clin Proc 2022; 97:2016-2027. [PMID: 35995626 DOI: 10.1016/j.mayocp.2022.04.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/04/2022] [Accepted: 04/05/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To perform a prospective cohort study to investigate whether night shift work is associated with incident hypertension and whether this association is modified by genetic susceptibility to hypertension because evidence on the association between night shift work and hypertension is insufficient. METHODS A total of 232,665 participants of UK Biobank who were recruited from 2006 to 2010 and observed to January 31, 2018, were included in this study. A Cox proportional hazards model with covariate adjustment was performed to assess the association between night shift work exposure and hypertension risk. We constructed a polygenic risk score (PRS) for genetic susceptibility to hypertension, which was used to explore whether genetic susceptibility to hypertension modified the effect of night shift work. The robustness of the results was assessed by sensitivity analysis. RESULTS Night shift workers had a higher hypertension risk than day shift workers, which increased with increasing frequency of night shift work (Ptrend<.001). The association was attenuated but still remained statistically significant in the fully adjusted model. We explored the joint effect of night shift work and genetic susceptibility on hypertension. Permanent night shift workers with higher hypertension PRSs had higher risk of hypertension than day workers with low PRSs. CONCLUSION Night shift work exposure was associated with increased hypertension risk, which was modified by the genetic risk for hypertension, indicating that there is a joint effect of night shift work and genetic risk on hypertension.
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Affiliation(s)
- Zhihao Xiao
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing, China
| | - Cheng Xu
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing, China.
| | - Qian Liu
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing, China; Gusu School, Nanjing Medical University, Nanjing, China
| | - Qing Yan
- Department of Neurosurgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Jingjia Liang
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing, China
| | - Zhenkun Weng
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing, China
| | - Xin Zhang
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing, China
| | - Jin Xu
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing, China; Department of Maternal, Child, and Adolescent Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Dong Hang
- Department of Epidemiology and Biostatistics, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Aihua Gu
- State Key Laboratory of Reproductive Medicine, School of Public Health, Nanjing Medical University, Nanjing, China; Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, Nanjing Medical University, Nanjing, China.
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47
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Zietara A, Spires DR, Juffre A, Costello HM, Crislip GR, Douma LG, Levchenko V, Dissanayake LV, Klemens CA, Nikolaienko O, Geurts AM, Gumz ML, Staruschenko A. Knockout of the Circadian Clock Protein PER1 (Period1) Exacerbates Hypertension and Increases Kidney Injury in Dahl Salt-Sensitive Rats. Hypertension 2022; 79:2519-2529. [PMID: 36093781 PMCID: PMC9669134 DOI: 10.1161/hypertensionaha.122.19316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/14/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Circadian rhythms play an essential role in physiological function. The molecular clock that underlies circadian physiological function consists of a core group of transcription factors, including the protein PER1 (Period1). Studies in mice show that PER1 plays a role in the regulation of blood pressure and renal sodium handling; however, the results are dependent on the strain being studied. Using male Dahl salt-sensitive (SS) rats with global knockout of PER1 (SSPer1-/-), we aim to test the hypothesis that PER1 plays a key role in the regulation of salt-sensitive blood pressure. METHODS The model was generated using CRISPR/Cas9 and was characterized using radiotelemetry and measures of renal function and circadian rhythm. RESULTS SSPer1-/- rats had similar mean arterial pressure when fed a normal 0.4% NaCl diet but developed augmented hypertension after three weeks on a high-salt (4% NaCl) diet. Despite being maintained on a normal 12:12 light:dark cycle, SSPer1-/- rats exhibited desynchrony mean arterial pressure rhythms on a high-salt diet, as evidenced by increased variability in the time of peak mean arterial pressure. SSPer1-/- rats excrete less sodium after three weeks on the high-salt diet. Furthermore, SSPer1-/- rats exhibited decreased creatinine clearance, a measurement of renal function, as well as increased signs of kidney tissue damage. SSPer1-/- rats also exhibited higher plasma aldosterone levels. CONCLUSIONS Altogether, our findings demonstrate that loss of PER1 in Dahl SS rats causes an array of deleterious effects, including exacerbation of the development of salt-sensitive hypertension and renal damage.
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Affiliation(s)
- Adrian Zietara
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33602, USA
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53226
| | - Denisha R. Spires
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53226
| | - Alexandria Juffre
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610, USA
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610, USA
| | - Hannah M. Costello
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610, USA
| | - G. Ryan Crislip
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610, USA
| | - Lauren G. Douma
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610, USA
| | - Vladislav Levchenko
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33602, USA
| | - Lashodya V. Dissanayake
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33602, USA
| | - Christine A. Klemens
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33602, USA
- Hypertension and Kidney Research Center, University of South Florida, Tampa, FL 33602, USA
| | - Oksana Nikolaienko
- Department of Cellular Membranology, Bogomoletz Institute of Physiology, Kyiv, Ukraine
| | - Aron M. Geurts
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53226
| | - Michelle L. Gumz
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610, USA
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, FL 32610, USA
- Department of Medicine, Division of Nephrology, Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL 32610, USA
- Center for Integrative Cardiovascular and Metabolic Disease, University of Florida, Gainesville, FL 32610, USA
| | - Alexander Staruschenko
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, FL 33602, USA
- Hypertension and Kidney Research Center, University of South Florida, Tampa, FL 33602, USA
- James A. Haley Veterans’ Hospital, Tampa, FL 33612, USA
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48
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Lecour S, Du Pré BC, Bøtker HE, Brundel BJJM, Daiber A, Davidson SM, Ferdinandy P, Girao H, Gollmann-Tepeköylü C, Gyöngyösi M, Hausenloy DJ, Madonna R, Marber M, Perrino C, Pesce M, Schulz R, Sluijter JPG, Steffens S, Van Linthout S, Young ME, Van Laake LW. Circadian rhythms in ischaemic heart disease: key aspects for preclinical and translational research: position paper of the ESC working group on cellular biology of the heart. Cardiovasc Res 2022; 118:2566-2581. [PMID: 34505881 DOI: 10.1093/cvr/cvab293] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 06/04/2021] [Accepted: 09/07/2021] [Indexed: 12/11/2022] Open
Abstract
Circadian rhythms are internal regulatory processes controlled by molecular clocks present in essentially every mammalian organ that temporally regulate major physiological functions. In the cardiovascular system, the circadian clock governs heart rate, blood pressure, cardiac metabolism, contractility, and coagulation. Recent experimental and clinical studies highlight the possible importance of circadian rhythms in the pathophysiology, outcome, or treatment success of cardiovascular disease, including ischaemic heart disease. Disturbances in circadian rhythms are associated with increased cardiovascular risk and worsen outcome. Therefore, it is important to consider circadian rhythms as a key research parameter to better understand cardiac physiology/pathology, and to improve the chances of translation and efficacy of cardiac therapies, including those for ischaemic heart disease. The aim of this Position Paper by the European Society of Cardiology Working Group Cellular Biology of the Heart is to highlight key aspects of circadian rhythms to consider for improvement of preclinical and translational studies related to ischaemic heart disease and cardioprotection. Applying these considerations to future studies may increase the potential for better translation of new treatments into successful clinical outcomes.
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Affiliation(s)
- Sandrine Lecour
- Department of Medicine, Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa
| | - Bastiaan C Du Pré
- Department of Internal Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Bianca J J M Brundel
- Department of Physiology, Amsterdam UMC, Vrije Universiteit, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Andreas Daiber
- Department of Cardiology, Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
| | - Sean M Davidson
- The Hatter Cardiovascular Institute, University College London, London, UK
| | - Peter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Henrique Girao
- Faculty of Medicine, Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR), Center for Innovative Biomedicine and Biotechnology (CIBB), Clinical Academic Centre of Coimbra (CACC), Coimbra, Portugal
| | | | - Mariann Gyöngyösi
- Department of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Derek J Hausenloy
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University Singapore, Singapore
- The Hatter Cardiovascular Institute, University College London, London, UK
- Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taichung City, Taiwan
| | - Rosalinda Madonna
- Institute of Cardiology, University of Pisa, Pisa, Italy
- Department of Internal Medicine, University of Texas Medical School in Houston, Houston, TX, USA
| | - Michael Marber
- King's College London BHF Centre, The Rayne Institute, St Thomas' Hospital, London, UK
| | - Cinzia Perrino
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Maurizio Pesce
- Unità di Ingegneria Tissutale Cardiovascolare, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig University Giessen, Giessen, Germany
| | - Joost P G Sluijter
- Department of Cardiology, Experimental Cardiology Laboratory, Regenerative Medicine Center, Circulatory Health Laboratory, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Sabine Steffens
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Sophie Van Linthout
- Berlin Institute of Health Center for Regenerative Therapies & Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité, University Medicine Berlin, Berlin 10178, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Martin E Young
- Division of Cardiovascular Diseases, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Linda W Van Laake
- Cardiology and UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
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49
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Serial assessment of thrombogenicity and hemodynamics in patients with type II diabetes in a clinical research unit: Evidence for circadian variations in clot formation. J Thromb Thrombolysis 2022; 54:393-400. [PMID: 36074227 DOI: 10.1007/s11239-022-02699-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/16/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Circadian fluctuations in thrombogenicity and hemostasis play a role in acute cardiovascular thrombotic events occurring in the early morning hours. There is a lack of data assessing thrombogenicity, platelet function, and hemodynamics to investigate diurnal variations in a high cardiovascular risk population. METHODS This was an exploratory, single-center study conducted in aspirin-treated patients with Type II Diabetes Mellitus (T2DM) (n = 37) with documented vascular disease and/or multiple cardiovascular risk factors. Hemodynamic monitoring and blood sample collection for thromboelastography (TEG) and platelet function testing were done serially at 7-9 AM (morning), 7-9 PM (evening), 11 PM-1 AM (night), and at 5-7 AM (awakening). RESULTS R-value measured by TEG was shorter during awakening hours than during the night and day hours (p < 0.05). There were no changes in platelet reactivity in response to arachidonic acid, adenosine diphosphate, and collagen between time points. Pulse pressure (PP) was highest during awakening hours (p < 0.05). CONCLUSION Study findings provide a mechanistic explanation for increased thrombotic events observed in the early waking hours among diabetics with multiple cardiovascular risk factors. The role of chronotherapy in reducing coagulability and PP to improve clinical outcomes should be explored.
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50
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Hou T, Chacon AN, Su W, Katsumata Y, Guo Z, Gong MC. Role of sympathetic pathway in light-phase time-restricted feeding-induced blood pressure circadian rhythm alteration. Front Nutr 2022; 9:969345. [PMID: 36159491 PMCID: PMC9493072 DOI: 10.3389/fnut.2022.969345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/01/2022] [Indexed: 11/25/2022] Open
Abstract
Disruption of blood pressure (BP) circadian rhythm, independent of hypertension, is emerging as an index for future target organ damage and is associated with a higher risk of cardiovascular events. Previous studies showed that changing food availability time alters BP rhythm in several mammalian species. However, the underlying mechanisms remain largely unknown. To address this, the current study specifically investigates (1) the relationship between rhythms of food intake and BP in wild-type mice; (2) effects of light-phase time-restricted feeding (TRF, food only available during light-phase) on BP circadian rhythm in wild-type and diabetic db/db mice; (3) the roles of the autonomic system and clock gene in light-phase TRF induced changes in BP circadian rhythm. Food intake and BP of C57BL/6J and db/db mice were simultaneously and continuously recorded using BioDAQ and telemetry systems under ad libitum or light-phase TRF. Per2 protein daily oscillation was recorded in vivo by IVIS spectrum in mPer2 Luc mice. Autonomic nerve activity was evaluated by heart rate variability, baroreflex, urinary norepinephrine (NE) and epinephrine (Epi) excretion, and mRNA expressions of catecholamines biosynthetic and catabolic enzymes, and alpha-adrenergic receptors in mesenteric resistance arteries. We found that in wild-type mice, the BP level was correlated with the food intake temporally across the 24 h. Reversing the feeding time by imposing light-phase TRF resulted in reverse or inverted BP dipping. Interestingly, the net changes in food intake were correlated with the net alteration in BP temporally under light-phase TRF. In db/db mice, light-phase TRF worsened the existing non-dipping BP. The food intake and BP circadian rhythm changes were associated with alterations in Per2 protein daily oscillation and the time-of-day variations in heart rate variability, baroreflex, and urinary excretion of NE and Epi, and increased mRNA expression of Slc6a2 (encoding NE transporter) and Adra1d (encoding alpha-adrenergic receptor 1d) in the mesenteric resistance arteries, indicating the sympathetic nervous system (SNS) was modulated after light-phase TRF. Collectively, our results demonstrated that light-phase TRF results in reverse dipping of BP in wild-type and diabetic db/db mice and revealed the potential role of the sympathetic pathway in light-phase TRF-induced BP circadian rhythm alteration.
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Affiliation(s)
- Tianfei Hou
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, United States
| | - Aaron N. Chacon
- Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY, United States
| | - Wen Su
- Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY, United States
| | - Yuriko Katsumata
- Department of Biostatistics, College of Public Health, University of Kentucky, Lexington, KY, United States
| | - Zhenheng Guo
- Department of Pharmacology and Nutritional Sciences, College of Medicine, University of Kentucky, Lexington, KY, United States
- Research and Development, Lexington Veterans Affairs Medical Center, Lexington, KY, United States
| | - Ming C. Gong
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, United States
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