Disease relevance of Enzaprost F

• A brief review of a comprehensive toxicity study using 20-160 times the recommended dose level, daily for 8 days, concludes that PGF2alpha-Tham has a 20 times safety margin for a single injection [1].
• Nineteen nulliparous, sexually mature heifers free of antibody to infectious bovine rhinotracheitis (IBR) virus were given two 35 mg intramuscular injections of Lutalyse 10 days apart to synchronize estrus and randomly divided into control and vaccinated groups [2].
• In two series of experiments the optimal dose of one of the tested analogues of PGF 2 alpha (Estrumate 3-4 microgram/kg, Lutalyse 130-170 microgram/kg of body weight) was used [3].

Psychiatry related information on Enzaprost F

• In summary, lutalyse increased libido scores, but did not affect the number of boars trained for semen collection [4].

High impact information on Enzaprost F

• On Days 9-11, the rats received twice daily injections of saline, PGF (Lutalyse, 250 microg/injection), or PRL (312 microg/injection) to induce luteal regression [5].
• Sows were assigned to one of eight treatments on d 90 of gestation that included variables such as parity (1 vs. >/=3), dietary fat (0 vs. 10%), and farrowing (natural vs. induction via lutalyse on d 112) [6].
• On the test day (day 46 or 47 of pseudopregnancy) animals were injected with 3 ml saline (n=5) or 15 mg of PGF(2alpha) (Lutalyse, Upjohn; n=6) intramuscularly [7].
• Interaction of hCG and Lutalyse on steroidogenesis of bovine luteal cells [8].
• In conclusion, the luteotropic effects of hCG were incapable of preventing Lutalyse-induced regression of the corpus luteum, and treatment of animals with hCG prior to Lutalyse administration could not prevent the significant decrease in responsiveness of luteal cells in vitro [8].

Biological context of Enzaprost F

• Lutalyse was used to synchronize estrus in a two injection scheme [9].
• Seven control (noncystic) cows in the luteal phase of the estrous cycle were injected with Lutalyse approximately 48 to 50 h before slaughter so they would be in the follicular phase (FP) of the cycle at the time of slaughter [10].
• The first trial was to evaluate parturition induced by various dosages of luprostiol compared with those of lutalyse or vehicle [11].
• Conception rate to timed insemination was not different (P > 0.1) among Estrumate- and Lutalyse-treated heifers within herd A (14%, 4/28 and 7%, 2/29, respectively) [12].
• All females (149 heifers and 399 postpartum cows) were fed MGA (.5 mg) daily for 14 d and then administered PGF2 alpha (25 mg Lutalyse) 13, 15, and 17 d (Groups 1, 2, and 3, respectively) after the last day of MGA feeding [13].

Anatomical context of Enzaprost F

• The effect of lutalyse on the training of sexually inexperienced boars for semen collection [4].
• Cows that had 3 consecutive high tests (>5 ng/ml) were assumed to have persistent corpora lutea (CL) and were treated with 5 ml PGF(2)alpha (Lutalyse, 5 mg/ml) [14].
• The obtained results expressed in per cent indicate that Estrumate exerts a greater effects on the parietal cells in the abomasal mucosa in sheep and Lutalyse stimulates more strongly the chief cells, as reflected in increased proteolytic power of the studied juice [3].

Associations of Enzaprost F with other chemical compounds

• The gifts' behavior was recorded on a control day, during which no treatment was given, and a test day (= 45.9 +/- 0.42 days of pseudopregnancy) when gilts received either 15 mg PGF2alpha (dinoprost: Lutalyse, Upjohn, Crawley, UK, n = 11) or 0.9% saline (n = 10) im at 11.00 h [15].
• Responses of different doses of PGF(2) alpha (Lutalyse) on estrus induction, fertility, and progesterone levels were studied in buffaloes [16].
• Heifers not observed in estrus within 5 d were randomly assigned to receive 15 mg Luprostiol or 25 mg Lutalyse [17].
• To investigate control of parturition time, 154 sows farrowing 220 litters at three locations were treated with altrenogest and Lutalyse (PG) [18].
• The effectiveness of using estrogen-induced pseudopregnancy followed by PGF(2alpha) (Lutalyse) treatment to synchronize estrus in gilts and the subsequent effect of pseudopregnancy on litter parameters was examined in two experiments [19].

Gene context of Enzaprost F

• Holstein heifers were treated with PGF2 alpha (25 mg Lutalyse) on Day 6 or Day 7 of the oestrous cycle and corpora lutea were collected 0 h, 2 h, 12 h, and 24 h later (n = 6, 4, 4, and 4 respectively) [20].
• It is concluded that either SMB containing norgestomet or a CIDR containing progesterone alters luteal secretion of PGE2, Lutalyse lowers luteal weights in the induced estrous cycle, and NO or ET-1 given alone are not luteolytic agents [21].
• A study was conducted on 40 buffalo-cows, assigned randomly, immediately after calving into three groups: group I (n = 10) injected with saline and taken as control; group II (n = 15) received 25 mg PGF2 alpha/animal (Lutalyse); group III (n = 15) received 25 mg PGF2 alpha + 25 i.u. oxytocin/animal (Syntocinon), single i.m. dose [22].

Analytical, diagnostic and therapeutic context of Enzaprost F

• Endogenous hormone response and fertility in dairy heifers after treatment with Lutalyse and GnRH [23].

References