Related Experiment Video

Updated: Aug 15, 2026

Using Chronic Social Stress to Model Postpartum Depression in Lactating Rodents
07:30

Using Chronic Social Stress to Model Postpartum Depression in Lactating Rodents

Published on: June 10, 2013

Stress-induced block of milk ejection

R R CHAUDHURY, M R CHAUDHURY, F C LU

    British Journal of Pharmacology and Chemotherapy
    |December 1, 1961
    PubMed

    A simple method has been described by which the action of drugs on the stress-induced block in milk ejection can be investigated on lactating guinea-pigs. Reserpine, meprobamate and chlorpromazine when administered to the lactating mother at various periods before suckling reduced the block in milk ejection caused by the stress. Dibenamine and dichloroisoprenaline did not affect in any way the stress-induced block. It is suggested that the stress-induced block in milk ejection is probably a nervous block and not mediated through adrenaline.

    Keywords:
    LACTATION/physiologySTRESS/experimentalSYMPATHOLYTICS/pharmacologyTRANQUILIZING AGENTS/pharmacology

    More Related Videos

    Milk Collection in the Rat Using Capillary Tubes and Estimation of Milk Fat Content by Creamatocrit07:38

    Milk Collection in the Rat Using Capillary Tubes and Estimation of Milk Fat Content by Creamatocrit

    Published on: December 16, 2015

    An Efficient Single-Person Technique for Milk Sampling from Laboratory Mice04:56

    An Efficient Single-Person Technique for Milk Sampling from Laboratory Mice

    Published on: March 28, 2025

    Related Concept Videos

    Neuromuscular Junction And Blockade01:29

    Neuromuscular Junction And Blockade

    The site of chemical communication between a motor neuron and a muscle fiber is called the neuromuscular junction (NMJ). The end of the motor neuron at the NMJ divides into a cluster of synaptic end bulbs. The cytoplasm of these bulbs consists of synaptic vesicles enclosing acetylcholine molecules, the principal neurotransmitter released at the NMJ. The region opposite the synaptic bulb that ends in the muscle fiber is called the motor end plate, which has acetylcholine receptors. Within the...
    Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

    Local Anesthetics: Differential Sensitivity of Nerve Fibers

    Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
    Intestinal Phase of Digestion01:29

    Intestinal Phase of Digestion

    The intestinal phase of digestion is the third and final stage of the digestive process, occurring after the cephalic and gastric phases. It begins when chyme, a partially digested mixture of food and digestive enzymes, enters the small intestine from the stomach. This phase is crucial for nutrient absorption and involves complex hormonal and enzymatic interactions.
    The arrival of the chyme in the small intestine distends the duodenum, which triggers the enterogastric reflex. This distension...
    Intestinal Obstruction II: Pathophysiology01:07

    Intestinal Obstruction II: Pathophysiology

    Intestinal obstruction triggers a series of physiological responses, starting with gas and fluid accumulation in the bowel segment proximal to the obstruction, leading to distension. This distended intestine compresses the diaphragm, hindering lung expansion and potentially leading to reduced respiratory effort, atelectasis, and pneumonia.To overcome the blockage, the gut intensifies contractions, causing colicky abdominal pain, nausea, and vomiting, which reduces fluid and food intake and...