Estrous Cycle Ratio as a Reproductive Index in the Rats

Adeniyi, MJ; Brito, Cleiton Felizardo; Agoreyo, FO

doi:10.34297/ajbsr.2019.04.000772

Cited by 6 publications

(8 citation statements)

References 8 publications

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“…The estrus cycle ratio was used to predict the intervals of folliculogenesis, luteogenesis, and luteolysis. An increase in the ratio of the estrus cycle can indicate the follicular phase and delayed ovulation (Adeniyi & Agoreyo, 2019). The results of the data showed that the dose of 400 mg/Kg BW had a higher ratio than the control (P<0.05).…”

Section: Estrus Cyclementioning

confidence: 94%

“…The vaginal smear were then examined with an Olympus Cx21 microscope (100x magnification) and photographs were made with Optilab and Images raster (Mohammed & Sundaram, 2018). Observations consisted of the phase of the estrus cycle, the total length of the estrus cycle, and the ratio of the estrus cycle (Adeniyi & Agoreyo, 2019). The estrus cycle ratio was calculated by dividing the number of proestrus and estrus phases by the number of metestrus and diestrus phases with the following formula:…”

Section: Observation Of the Estrus Cyclementioning

confidence: 99%

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The Effects of Calina Papaya Leaf Ethanol Extract On Estrus Cycle And Uterus Morphology of Wistar Rats

et al. 2021

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Calina papaya leaf is an Indonesian papaya plant type that has the potential to be used as a medicinal plant. Phytochemical compounds found in papaya leaves act as antifertility agents. The research aimed to study the antifertility effect of Calina papaya leaf ethanol extract on estrus cycle and uterine morphology of wistar rats. The experiment lasted 30 days and involved 25 female wistar rats. The treatment consisted of 5 groups, namely K (distilled water), K+ (contraceptive pill), P1 (Calina papaya leaf ethanol extract 200mg/KgBW), P2 (Calina papaya leaf ethanol extract 300mg/KgBW), and P3 (Calina papaya leaf ethanol extract 400mg/KgBW). The parameters of estrus cycle consisted of estrus cycle phase, total cycle and estrus cycle ratio. Uterus morphological parameters consist of wall thickness of the endometrium, myometrium, and perimetrium. The estrus cycle examination was carried out every day using the vaginal smear method (Giemsa 5%). On the 31st day, surgery was performed and the uterus was taken for histological observation using the paraffin method (HE staining). Data were analyzed using One Way ANOVA with further Duncan’s test. The results showed that a dose of 400 mg/KgBW could affect the estrus cycle with accelerate the estrus phase and increase the estrus cycle ratio compared to the control (P0.05). There was a decrease in endometrium and myometrium wall thickness at a dose of 400 mg/KgBW compared to the control (P0.05). The conclusion of the study is that the ethanol extract of Calina papaya leaves at a dose of 400 mg/KgBW has the potential to be a natural antifertility agent on female wistar rats.

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Section: Estrus Cyclementioning

confidence: 94%

Section: Observation Of the Estrus Cyclementioning

confidence: 99%

The Effects of Calina Papaya Leaf Ethanol Extract On Estrus Cycle And Uterus Morphology of Wistar Rats

et al. 2021

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“…Biorhythms are periodic variations in physiologic events occurring within a time frame. Important attributes of biorhythms include orderliness, entrainability, selfsustenance, and endogeny [1,27,28]. Biorhythms that are completed in less than 24 hours are called ultradian rhythms (example is ultradian LH secretion).…”

Section: Photic Stress and Rhythmically Controlled Physiological Proc...mentioning

confidence: 99%

“…These patterns are influenced by external cues such as light, temperature, metabolic activity, and diet. Indiscriminate exposure to external cues affects the pattern of the rhythms [1][2][3]. For instance, light is necessary as an external cue to reset circadian pacemakers situated in the suprachiasmatic nucleus; indiscriminate exposure to light and photic stress will affect the functionalities of these pacemakers, causing alteration in the rhythmic pattern of gene expressions with attendant impairments in physiological functions [4,5].…”

Section: Introductionmentioning

confidence: 99%

Photic Stress and Rhythmic Physiological Processes: Roles of Selenium as a Chronobiotic

Awosika¹,

Adeniyi²,

Okojie³

et al. 2023

Selenium and Human Health

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Physiological processes exhibit distinct rhythmic patterns influenced by external cues. External cues such as photic signal play an important role in the synchronization of physiological rhythms. However, excess of or indiscriminate exposure to photic signals exerts profound effects on physiological processes, disrupting normal hormonal secretory rhythms, altering sleep/wakefulness cycle, and impairing reproductive function. Alteration in sleep/wakefulness cycle, impairment in reproductive cycle, and disruption of normal hormonal secretory rhythms characterize risk groups for photic stress such as night workers, trans-meridian travelers, and night-active people. Evidence from primary studies is increasing on the tendency of selenium to reset internal biorhythms by targeting circadian proteins and melatonin. The review highlights the chronobiological roles of selenium.

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“…Furthermore, light also influences body temperature and the reproductive cycle. Specifically, in rodents' study, exposure to light stress has been shown to lengthen the estrous cycle and estrous cycle ratio [2,3,14] and impairs body temperature rhythm [15]. Light exposure may also influence the activities of antioxidant enzymes.…”

Section: Effect Of Photic Stress On Autonomic Nervous Systemmentioning

confidence: 99%

Impacts of Environmental Stressors on Autonomic Nervous System

Adeniyi¹

2022

Autonomic Nervous System - Special Interest Topics

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Stress can be described as the perception of discomforts physically, psychologically, or physico-psychologically. During stress, the perceived discomfort indicates there is a deviation from homeostasis. In stress, there is a nonspecific physiological response to stressors, a group of stress-inducing phenomena. Stress-inducing phenomena can be defined as environmental insults, such as perturbed levels of light, temperature, chemicals, ambient oxygen, and noise. Response to stress occurs via the chemical messenger-mediated sympathetic nervous system including the autonomic-adrenal axis. Furthermore, the chemical messenger-mediated sympathetic nervous system determines nonhormonal effects which are often devised as general stress markers. Examples of general stress markers include changes in heart rate, heart rate variability, blood pressure, body temperature, blood glucose, baroreflex sensitivity, among others.

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Estrous Cycle Ratio as a Reproductive Index in the Rats

Abstract: This work is licensed under Creative Commons Attribution 4.0 License AJBSR.MS.ID.000772

Cited by 6 publications

References 8 publications

The Effects of Calina Papaya Leaf Ethanol Extract On Estrus Cycle And Uterus Morphology of Wistar Rats

The Effects of Calina Papaya Leaf Ethanol Extract On Estrus Cycle And Uterus Morphology of Wistar Rats

Photic Stress and Rhythmic Physiological Processes: Roles of Selenium as a Chronobiotic

Impacts of Environmental Stressors on Autonomic Nervous System

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