Dataset Information

Analysis of low molecular weight protein profile in whole saliva with special reference to ovulation

ABSTRACT: Whole saliva is contains major, minor and gingival crevicular fluid/secretions and it plays vital role in maintaining the oral health, three pair of major salivary glands consist of parotid, submandibular and sub-lingual glands. Saliva is a good biological fluid to explore health and disease status of human. Further, the saliva secrets from major salivary glands and have various biomolecules such as, proteins, enzymes and ions originated from serum and saliva is easily accessible through a safe and noninvasive method. In contrast, the concentrations of biomolecules in saliva are generally one tenth to one thousand of the levels in blood. Ovulation is an exclusive process through the mature (pre-ovulatory) ovarian follicles reacts to the surge of luteinizing hormone (LH) and burst to discharge fertilizable oocytes. The LH surge initiates a flow of proteolytic actions with the aim of control ovulation. Presently, many salivary proteins are have been showed as a biomarker such as Sjogren’s syndrome, Lung cancer, oral and Systemic diseases, HIV-seropositive patients, dental pellicle development, and hyperglycemia. However, there is no prominent marker protein was reported for monitoring ovulation process in human saliva. It is important prediction of fertile period in women for various applications like assisted reproduction and invitro fertilization.

INSTRUMENT(S):

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Saliva

SUBMITTER: Saibaba Ganesan

LAB HEAD: Archunan Govindaraju

PROVIDER: PXD000921 | Pride | 2016-12-22

REPOSITORIES: Pride

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Proteomic analysis of human saliva: An approach to find the marker protein for ovulation.

Saibaba Ganesan G Rajesh Durairaj D Muthukumar Subramanian S Sathiyanarayanan Ganesan G Padmanabhan Parasuraman P Akbarsha Mohammad Abdulkader MA Gulyás Balázs B Archunan Govindaraju G

Reproductive biology 20161029 4

Human saliva contains numerous molecules that play a variety of roles. Among them there are proteins which serve as biomarkers of various physiological and/or pathological conditions. Compared to other body fluids, saliva is the most convenient material for investigations, and especially for monitoring the disease conditions. Presently, there is an increasing need to develop a noninvasive method to identify the time of ovulation in humans to ensure successful fertilization, and for evolving stra ...[more]

PMID: 27802913

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Project description:Gonadotropin surge acts on the preovulatory follicle of the ovary to induce luteinization of follicular cells, oocyte meiotic maturation, cumulus expansion and follicular rupture leading to ovulation. These processes are brought about by spatial and temporal changes in transcriptional regulation of genes in the follicular cells in response to the gonadotropin surge. Analysis of gene expression changes in the periovulatory follicular cells will help in delineating the signal transduction pathways involved in the above mentioned processes. In monoovulatory species like bovines, the time interval of 24-28 hours between gonadotropin surge and ovulation provides distinct advantage for studying the temporal changes in the gene expression pattern. Thus, in the present study, we attempt to identify the temporal changes in the global gene expression profile in the periovulatory follicle of buffalo cows in response to gonadotropin surge and the results suggest the involvement of Insulin-like Growth Factor 1 and cytokine signaling pathways in the periovulatory events. Experiment Overall Design: To study the periovulatory gene expression changes in buffalo cows, an induced-ovulation model system involving sequential treatment with PGF2alpha and GnRH was standardized. The follicular wave containing at least one large follicle of ~7mm size was determined by ultrasonography on day 7 of the estrous cycle before administering exogenous PGF2alpha to induce luteolysis and follicular growth. Exogenous GnRH (100Âµg i.m) was administered 36h post PGF2alpha to induce LH surge. The time course of increase in LH levels post GnRH injection was monitored. Since peak LH levels are attained 2 h post GnRH administration, the time intervals of 3 h post GnRH (corresponding to1 h post LH surge) and 24 h post GnRH (corresponding to 22 h post LH surge) were chosen to identify the gene expression profile associated with immediate early and delayed changes in periovulatory follicle respectively. Thus ovaries were collected before, 1 h and 22 h post LH surge and follicle wall and granulosa cells were isolated from the ovaries and snap frozen for the purpose of RNA isolation.

			Action	DRS
	O-GS ----SAIBABA--27JAN14.D.pride.mgf.gz	Mgf
	O-GS----SAIBABA--27JAN14.D.mgf	Mgf
	P1 MGF.pride.mgf.gz	Mgf
	P1MGF.mgf	Mgf
	P2 MGF.pride.mgf.gz	Mgf