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Hubená P, Horký P, Grabic R, Grabicová K, Douda K, Slavík O, Randák T. Aggression repeatability in stressed fish in response to an environmental concentration of sertraline and lunar cycle as evidenced by brain metabolomics. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 264:106707. [PMID: 37806025 DOI: 10.1016/j.aquatox.2023.106707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/18/2023] [Accepted: 09/24/2023] [Indexed: 10/10/2023]
Abstract
Sertraline is an environmental pollutant which received magnified scientific attention due to its global presence in waters. Adverse effects on feeding, reproduction and other traits were observed mostly in unstressed aquatic organisms. Chronic stress, however, induces significant physiological changes, and the effects of sertraline in stressed fish may differ from those observed in non-stressed individuals. The current laboratory study addresses this gap by repeatedly monitoring the individual aggression of chronically stressed juvenile chub (Squalius cephalus L.) using the non-reversing mirror test at an environmental sertraline concentration of 0.022 g/L every three to four days for a period of 39 days. Specifically, it was hypothesized that the level and repeatability of aggressiveness would be (i) correlated with the concentration of sertraline/norsertraline in the fish brain; (ii) linked to the individual brain metabolomic profile described by LC-HRMS analyses; (iii) related to the lunar cycle. Sertraline led to an increase in fish aggression and more repeatable/consistent behaviour compared to control fish. While the level of sertraline in the brain did not correlate with aggressiveness, aggressive responses increased with higher norsertraline concentration. The observed aggressive behaviour also varied depending on the individual metabolomic profile of the brain. The behavioural outcome and metabolic change in fish brain may indicate that sertraline has demonstrated neuroprotective effects by reducing cortisol release. It is possible that fish exposed to sertraline could suffer a blunted stress response under the chronic stressors in the wild. Aggressiveness of both treatments evolved in time, revealing a sinusoid-like pattern corresponding to a lunar cycle with a peak of the aggressiveness during the new moon. There is a need for future studies to focus on this relationship to reveal its details and general validity. Our results emphasize that long-term behavioural variability should generally be taken into account in laboratory behavioural studies.
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Affiliation(s)
- Pavla Hubená
- Czech University of Life Sciences Prague, Department of Zoology and Fisheries, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic; Uppsala University, Uppsala Biomedical Centre, Department of Medical Cell Biology, Husargatan 3, 751 23 Uppsala, Sweden.
| | - Pavel Horký
- Czech University of Life Sciences Prague, Department of Zoology and Fisheries, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic
| | - Roman Grabic
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 398 25 Vodňany, Czech Republic
| | - Kateřina Grabicová
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 398 25 Vodňany, Czech Republic
| | - Karel Douda
- Czech University of Life Sciences Prague, Department of Zoology and Fisheries, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic
| | - Ondřej Slavík
- Czech University of Life Sciences Prague, Department of Zoology and Fisheries, Kamýcká 129, 165 00 Praha 6 Suchdol, Czech Republic
| | - Tomáš Randák
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 398 25 Vodňany, Czech Republic
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Chowdhury SD, Pramanik S, Bhattacharjee K, Mondal LK. Effects of lunar cycle on fasting plasma glucose, heart rate and blood pressure in type 2 diabetic patients. Chronobiol Int 2020; 38:270-277. [PMID: 33307847 DOI: 10.1080/07420528.2020.1842754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The purpose of this study was to investigate the influence of lunar phases on fasting plasma glucose, heart rate, and blood pressure in type 2 diabetic patients. The present cross-sectional study was carried out during four phases, i.e., full moon (FM), first quarter (FQ), new moon (NM), and third quarter (TQ), of the lunar month. The study was conducted on 42 randomly selected patients (22 males and 20 females) from the Diabetes Clinic of Calcutta Medical College. Fasting plasma glucose (FPG) of each subject was determined and heart rate (HR) and blood pressure (BP) were measured at rest and during static exercise conditions, i.e., performance of a standard handgrip dynamometer test. The FPG level during the NM and FM was significantly higher (p < .001) than during the TQ and FQ for both males and females, respectively. The mean HR during static exercise during the NM and FM for both males and females was significantly higher than that during the FQ (p < .05) and TQ (p < .01). It appears from the present study that lunar phases may affect fasting plasma glucose level and cardiovascular functions of aged type 2 diabetic patients both at rest and during exercise.
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Affiliation(s)
| | - Subhasish Pramanik
- Department of Opthalmology, Regional Institute of Ophthalmology, Medical College and Hospital , Kolkata, India
| | - Koena Bhattacharjee
- Department of Opthalmology, Regional Institute of Ophthalmology, Medical College and Hospital , Kolkata, India
| | - Lakshmi Kanta Mondal
- Department of Opthalmology, Regional Institute of Ophthalmology, Medical College and Hospital , Kolkata, India
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Yousfi N, Arbi Mejri M, Kasmi S, Tabben M, Haddad M, Hammami A, Chaouachi A, Chamari K. Does the moon cycle affect the physical endurance, balance, reaction-time, mood state and well-being in trained athletes? J Sports Med Phys Fitness 2020; 60:125-131. [DOI: 10.23736/s0022-4707.19.09940-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Affiliation(s)
- Ujjwal Chakraborty
- Life Science Division, Moulasole R.B. High School, Moulasole, Bankura, West Bengal, India
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Yousfi N, Mejri MA, Rouissi M, Hammami A, Tabben M, Chaouachi A, Haddad M, Chamari K. Effects of lunar phases on short-term, explosive physical performance among young trained athletes. Chronobiol Int 2018; 35:565-572. [DOI: 10.1080/07420528.2017.1422741] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Narimen Yousfi
- Research Laboratory “Sport Performance Optimization”, National Centre of Medicine and Science in Sport. Tunis, Tunisia
- High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University. Tunis, Tunisia
| | - Mohamed Arbi Mejri
- Research Laboratory “Sport Performance Optimization”, National Centre of Medicine and Science in Sport. Tunis, Tunisia
- High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University. Tunis, Tunisia
| | - Mehdi Rouissi
- High Institute of Sport and Physical Education, Ksar-Saïd, Manouba University. Tunis, Tunisia
| | - Amri Hammami
- Biochemistry Laboratory, CHU Farhat Hached. Sousse, Tunisia
| | - Montassar Tabben
- Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital. Doha, Qatar
| | - Anis Chaouachi
- Research Laboratory “Sport Performance Optimization”, National Centre of Medicine and Science in Sport. Tunis, Tunisia
| | - Monoem Haddad
- Sport Science Program, College of Arts and Sciences, Qatar University. Doha, Qatar
| | - Karim Chamari
- Athlete Health and Performance Research Centre, ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital. Doha, Qatar
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Mao Y, Schnytzer Y, Busija L, Churilov L, Davis S, Yan B. “MOONSTROKE”: Lunar patterns of stroke occurrence combined with circadian and seasonal rhythmicity—A hospital based study. Chronobiol Int 2015; 32:881-8. [DOI: 10.3109/07420528.2015.1049614] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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The Counterbalance of Skin Metabolism on Orbits and Diseases. Med Sci (Basel) 2015; 3:25-37. [PMID: 29083389 PMCID: PMC5635759 DOI: 10.3390/medsci3020025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 04/29/2015] [Accepted: 05/04/2015] [Indexed: 11/22/2022] Open
Abstract
Human organ functions are regulated by the nervous system. When human cells receive a message, this message is transmitted to the nervous system through a series of signal transmission processes. Skin conditions that occur after applying skin cream are closely related to signal transmission and nervous regulation. We determined the connection between signal regulation and natural rhythmic operations. The diurnal variations resulting from the earth’s rotation and indicate the relative relationships between the sympathetic nervous system and the parasympathetic nerve system. A spectrum was developed to assess neural transmission conditions by using skin signals which from Fourier transformation of the waves and established the association between the spectrum and diseases. The results could explain the relationships between the neurological illnesses and established spectrum. The objective was to promote the use of this spectrum as a new tool for conducting the nervous system tests in the future.
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Chakraborty U, Ghosh T. A study on the physical fitness index, heart rate and blood pressure in different phases of lunar month on male human subjects. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2013; 57:769-774. [PMID: 23161271 DOI: 10.1007/s00484-012-0605-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Revised: 10/24/2012] [Accepted: 10/26/2012] [Indexed: 06/01/2023]
Abstract
The gravitational pull of the moon on the earth is not the same in all phases of the lunar month, i.e. new moon (NM), first quarter (FQ), full moon (FM) and third quarter (TQ), and as a result the amplitude of tide differs in different phases. The gravitational pull of the moon may have effects on the fluid compartments of the human body and hence the cardiovascular system may be affected differentially in the different phases of the lunar month. In the present study resting heart rate (HR) and blood pressure (BP), physical fitness index (PFI), peak HR and BP immediately after step test, and recovery HR and BP after step test were measured during different phases of the lunar month in 76 male university students (age 23.7 ± 1.7 years). At rest, both systolic and mean arterial BP were ∼5 mmHg lower in NM and FM compared to FQ and TQ, but resting HR was not significantly different between phases. Further, peak HR and peak systolic BP after step test were lower (∼4 beat/min and ∼5 mmHg, respectively) in NM and FM compared to FQ and TQ. PFI was also higher (∼5) in NM and FM compared to FQ and TQ. Recovery of HR after step test was quicker in NM and FM compared to that of FQ and TQ. It appears from this study that gravitational pull of the moon may affect the cardiovascular functions of the human body. Moreover, the physical efficiency of humans is increased in NM and FM due to these altered cardiovascular regulations.
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Affiliation(s)
- Ujjwal Chakraborty
- Department of Human Physiology with Community Health, Vidyasagar University, Paschim Medinipur 721102, West Bengal, India
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