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Relevant bibliographies by topics / Preovulatory period

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Academic literature on the topic 'Preovulatory period'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Preovulatory period"

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Souza, Suelen Pamato Gonçalves, Marceli Vieira Martins, Gustavo Otoboni Molina, Jefferson Ricardo Pereira, Marcelo Tomás Oliveira, and Janaina Salomon Ghizoni. "INFLUENCE OF HORMONAL VARIATION ON PERIODONTAL TISSUES DURING PREMENSTRUAL AND PREOVULATORY PERIODS." Journal of Research in Dentistry 2, no. 2 (2014): 129. http://dx.doi.org/10.19177/jrd.v2e22014129-37.

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The aim of this work was to evaluate the hormonal influence on periodontal tissues in two moments: premenstrual and preovulatory, in women whose are in the reproductive phase between 18 and 45 years. The sample is composed by 30 women, who were analyzed following the inclusion criteria as: not pregnant women, who are not using contraceptive or other means of hormonal replacement, who were not in the menopause and who did not present systemic diseases. The periodontal exams were accomplished in two periods: premenstrual and preovulatory, when it was verified bleeding on probing (BOP) and probin

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Choi, Hyeonhae, and Jaesook Roh. "Role of Klf4 in the Regulation of Apoptosis and Cell Cycle in Rat Granulosa Cells during the Periovulatory Period." International Journal of Molecular Sciences 20, no. 1 (2018): 87. http://dx.doi.org/10.3390/ijms20010087.

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In the ovary, the luteinizing hormone (LH) surge suppresses the proliferation and induces the luteinization of preovulatory granulosa cells (GCs), which is crucial for the survival of terminally-differentiated GCs. Krüppel-like factor 4 (Klf4) has been shown to play a role in regulating the cell cycle and apoptosis in various cell types. The rapid induction of Klf4 expressions by LH was observed in preovulatory GCs. To evaluate whether Klf4 affects GC proliferation and survival, primary rat GCs were isolated from pregnant mare serum gonadotropin-primed Sprague–Dawley rat ovaries and transfecte

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Wu, Sheng-Hai, Hao-Ping Tang, Hsien-Chi Wang, Li-Jen Chang, Wei-Ming Lee, and Kuan-Sheng Chen. "YEAR-LONG ULTRASONOGRAPHIC OBSERVATION OF FOLLICULAR FEATURES IN CAPTIVE YELLOW-MARGINED BOX TURTLES (CUORA FLAVOMARGINATA) FROM TAIWAN." Taiwan Veterinary Journal 45, no. 04 (2019): 119–28. http://dx.doi.org/10.1142/s1682648519500045.

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Ultrasonography is widely used to examine reproductive systems in chelonians. Previous studies have described how follicular size is associated with the reproductive stages of yellow-margined box turtles (YMBTs), but our understanding of follicular morphology remains limited. This study describes the different ultrasonographic appearances of preovulatory follicles of these turtles in Taiwan. Randomly selected 28 adult captive female turtles were examined under ultrasonography, weekly from November 2012 to November 2013. The females were divided into ovulatory and non-ovulatory groups with equa

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Zhao, Ping, Ananya De, Zeng Hu, et al. "Gonadotropin Stimulation of Ovarian Fractalkine Expression and Fractalkine Augmentation of Progesterone Biosynthesis by Luteinizing Granulosa Cells." Endocrinology 149, no. 6 (2008): 2782–89. http://dx.doi.org/10.1210/en.2007-1662.

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Recent studies indicated that ovarian functions are regulated by diverse paracrine factors induced by the preovulatory increases in circulating LH. Based on DNA microarray analyses and real-time RT-PCR, we found a major increase in the transcript levels of a chemokine fractalkine after human chorionic gonadotropin (hCG) treatment during the preovulatory period in gonadotropin-primed immature mice and rats. Although CX3CR1, the seven-transmembrane receptor for fractalkine, was also found in murine ovaries, its transcripts displayed minimal changes. Using tandem RT-PCR and immunohistochemistry,

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Roa, J., E. Vigo, J. M. Castellano, et al. "Follicle-Stimulating Hormone Responses to Kisspeptin in the Female Rat at the Preovulatory Period: Modulation by Estrogen and Progesterone Receptors." Endocrinology 149, no. 11 (2008): 5783–90. http://dx.doi.org/10.1210/en.2008-0604.

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Ovulation is triggered by the preovulatory surge of gonadotropins that, in rodents, is defined by the concomitant rise in circulating LH and FSH at the afternoon of proestrus (primary surge), followed by persistently elevated FSH levels at early estrus (secondary surge). In recent years, kisspeptins, products of the KiSS-1 gene that act via G protein-coupled receptor 54, have emerged as an essential hypothalamic conduit for the generation of the preovulatory LH surge by conveying positive feedback effects of estradiol onto GnRH neurons, an event that involves not only estradiol-induced transcr

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Benmachiche, Abdelhamid, Sebti Benbouhedja, Abdelali Zoghmar, and Peter Samir Hesjaer Al Humaidan. "The impact of preovulatory versus midluteal serum progesterone level on live birth rates during fresh embryo transfer." PLOS ONE 16, no. 2 (2021): e0246440. http://dx.doi.org/10.1371/journal.pone.0246440.

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Background Conflicting evidence still prevails concerning the effect of preovulatory elevated progesterone (EP4) on reproductive outcomes in fresh embryo transfer (ET). However, few studies have analyzed the effect of EP4 on the likelihood of pregnancy using multivariate regression approach. The potential confounding factors tested in these studies were limited to either patient’s characteristics or to stimulation related parameters. Yet, several studies have shown that postovulatory parameters such as midluteal progesterone (P4) level may be considered as a proxy variable of endometrial recep

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Satué, Katy, Paloma Montesinos, and Ana MuÑoz. "Modulation of the renin–angiotensin–aldosterone system by steroid hormones during the oestrous cycle in mares." Acta Veterinaria Hungarica 68, no. 1 (2020): 79–84. http://dx.doi.org/10.1556/004.2020.00011.

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AbstractIn women and females of different species of laboratory animals, oestrogens stimulate the renin–angiotensin–aldosterone system (RAAS) by increasing tissue and circulating levels of angiotensinogen and renin during the preovulatory period. Progesterone and cortisol compete with aldosterone for mineralocorticoid receptors, which results in increased Na+ reabsorption during the postovulatory period. The purpose of the current research was to analyse the relationship of oestradiol-17β, progesterone and cortisol with RAAS in 23 mares during an oestrous cycle. During the preovulatory period,

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MAHMOOD, TAHIR A., and ALLAN TEMPLETON. "Peritoneal fluid volume and sex steroids in the preovulatory period in mild endometriosis." BJOG: An International Journal of Obstetrics and Gynaecology 98, no. 2 (1991): 179–83. http://dx.doi.org/10.1111/j.1471-0528.1991.tb13365.x.

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Carrasco, R., J. Singh, and G. P. Adams. "135 SHORT-TERM OVARIAN EFFECTS OF UNILATERAL OVARIECTOMY IN COWS." Reproduction, Fertility and Development 28, no. 2 (2016): 197. http://dx.doi.org/10.1071/rdv28n2ab135.

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Classical studies established that the removal of one of the paired organs produces a compensatory effect on the remaining organ. In the bovine ovary this aspect has not been examined in detail. We took advantage of follicular and luteal profiles from a previous study to retrospectively examine the effects of ovariectomy before and after ovulation on follicular dynamics of the remaining ovary in cattle. To characterise the prevalence and distribution of tyrosine kinase receptor A in the bovine ovary, the original design involved unilateral ovariectomy of cows at different stages of the periovu

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Zaghari, M., R. Taherkhani, and S. Honarbakhsh. "Effects of chronic progesterone injection on performance, plasma hormones and ovarian morphology of feed-satiated and fed restricted broiler breeder hens." Proceedings of the British Society of Animal Science 2009 (April 2009): 204. http://dx.doi.org/10.1017/s175275620003043x.

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Single injection of chronic dose of P4 in laying hens during the preovulatory open period has been shown to have positive effects on inducing a preovulatory LH surge and ovulation (Johnson et al., 1985). However, chronic injection of P4 has been shown to increase baseline concentrations of P4 and result in arrested laying and disrupted distribution of hierarchical follicles in turkeys (Bacon and Liu, 2004). The current study was designed to examine the effects of a simulated progesterone surge (by injection of chronic dose of P4) on broiler breeder hens performance, ovary morphology, plasma me

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Dissertations / Theses on the topic "Preovulatory period"

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Souto, Lucas de Araujo. "THE EFFECT OF LENGTH OF THE PREOVULATORY PERIOD ON MECHANISMS REGULATING EMBRYONIC SURVIVAL IN BEEF CATTLE." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1291052927.

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Book chapters on the topic "Preovulatory period"

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Makinoda, S., M. Tabata, T. Yamaguchi, K. Nakajin, T. Koyama, and K. Ichinoe. "Ovarian Blood Flow and Oxygen Transport to the Follicle during the Preovulatory Period." In Oxygen Transport to Tissue X. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4615-9510-6_85.

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Larsen, William J., Susan E. Wert, Lin Chen, Paul Russell, and E. Michael Hendrix. "Expansion of the Cumulus-Oocyte Complex During the Preovulatory Period: Possible Roles in Oocyte Maturation, Ovulation, and Fertilization." In Ultrastructure of the Ovary. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3944-5_3.

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