Biomedical subjects

M Rüsse

Publications and source records attributed to M Rüsse.

11 recordsLinked to original sources

PubMed1990

[Effect of 3,4-dihydroxybenzylamine (DHBA) on the myometrium of cattle in vitro].

The effect of 3,4-DHBA was tested in vitro on strips of cattle myometrium. It was discovered that adding DHBA to non-contracting strips of myometrium, clear contractions can be induced. With spontaneously weakly contracting strips addition of DHBA further strengthens the contractions. With irregular contraction forms a coordination of the contractions can be achieved. The optimal effective doses is 5.1.10(-6) mmol DHBA/ml of the nutrient solution.

Animals↗

PubMed1987

[Resuscitation of puppies after cesarean section].

The neonatal depression of puppies, developed by C-section, can be treated effectively by the application of 0.1-0.2 ml Narcanti respectively Narcanti Neonatal (Naloxon) right after development. The technique of the intravenous injection in newborn puppies is simple and easy to learn.

Animals↗

PubMed1985

An opioid antagonist stimulates myometrial activity in early postpartum cows.

The influence of the opioid antagonist naltrexone on myometrial activity of cows was tested during the early postpartum period, when uterine contractions are a highly sensitive indicator of oxytocin actions. Registering intrauterine pressure oscillations in five first calf heifers revealed that myometrial activity was enhanced after naltrexone was administered (0.02 mg/kg BW). However, plasma concentrations of oxytocin were not consistently elevated. In addition, naltrexone did not reliably potentiate the suckling-induced peak of oxytocin release in plasma. In all cases, naltrexone injections caused increases in the cows' respiratory rates and distinct behavioral changes during the first days postpartum, but not later. We conclude that: 1) In the early postpartum period, an inhibitory opioidergic control of myometrial activity may exist in cattle. 2) This control does not seem to be caused by a change in circulating oxytocin levels. 3) Opioids may exert an inhibitory influence on respiratory functions in cattle.

Journal Article↗

PubMed1983