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Veterinary Archives, Vol. 86 No. 6, 2016.

Short communication, Note

Plasma levels of nitric oxide and nitric oxide synthase vis à vis ovarian steroid hormones at and around estrus in cycling cows - a short communication.

Shailaza Sharma ; Department of Biochemistry, College of Veterinary Science and Animal Husbandry, UP Pandit Deen Dayal Upadhyaya Pashuchikitsa Vigyan Vishvavidyalya evam Go Anusandhan Sansthan (DUVASU), Mathura, Uttar Pradesh, India
Rajesh Nigam ; Department of Biochemistry, College of Veterinary Science and Animal Husbandry, UP Pandit Deen Dayal Upadhyaya Pashuchikitsa Vigyan Vishvavidyalya evam Go Anusandhan Sansthan (DUVASU), Mathura, Uttar Pradesh, India
Vijay Pandey ; Department of Biochemistry, College of Veterinary Science and Animal Husbandry, UP Pandit Deen Dayal Upadhyaya Pashuchikitsa Vigyan Vishvavidyalya evam Go Anusandhan Sansthan (DUVASU), Mathura, Uttar Pradesh, India
Sarvpreet S. Ghuman ; Department of Veterinary Gynecology and Obstetrics, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Science University (GADVASU), Ludhiana, Punjab, India

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Abstract

Blood samples were collected from cycling Sahiwal cows at -2,-1, 0, +1, and +2 days of the estrus cycle and analyzed for plasma levels of Nitric oxide (NO) and Nitric Oxide Synthase (NOS) vis a vis ovarian steroidal hormones viz. estradiol-17β and progesterone. The results revealed a gradual increase in NO, NOS and Estradiol-17β levels from day -2 and they peaked at the day of estrus, followed by a steep fall up to day +2. The values of NO, NOS and estradiol-17β ranged between 7.93 to 18.92 μM/L, 0.39 to 0.95 U/L and 5.46 to 20.16 pg/mL, respectively. The levels of progesterone ranged from 0.15 to 0.71 ng/mL and showed a significant decline from day -2 to the day of estrus and then remained statistically parallel. In addition, levels of estradiol-17β exhibited a highly significant (P<0.01) association with levels of NO and NOS. The present study generated data on NO, NOS, estradiol-17β and progesterone at and around estrus in cows, which is of practical importance for clinical and experimental interpretation.

Keywords

cows; nitric oxide; nitric oxide synthase; estradiol 17β; progesterone; estrus

Hrčak ID:

170236

URI

https://hrcak.srce.hr/170236

Publication date:

22.11.2016.

Article data in other languages: croatian

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