Cervical stimulation induces two daily rhythmic prolactin surges, nocturnal and diurnal, which persist for several days. We have shown that a bolus injection of oxytocin initiates a similar prolactin rhythm, which persists despite low levels of oxytocin after injection. This suggests that oxytocin may trigger the cervical stimulation-induced rhythmic prolactin surges. To investigate this hypoth...

A number of mouse x mouse hybridomas producing monoclonal antibodies (MAbs) against bovine growth hormone (bGH) were prepared by fusion of spleen cells from bGH-primed mice (Balb/c) with non-secretory mouse myeloma cells (PAIOP3) and characterized. MAbs obtained from three fusion experiments belonged to IgM, IgG1 and IgG2b class/subclass of antibodies. Cross-reaction studies indicated that gene...

Immunoreactive prolactin (ir-PRL) in rat brain has been consistently documented. However, the identity of this ir-PRL is controversial. Ir-PRL is defined by its ability to bind to PRL antibodies. All previous studies of brain ir-PRL have used polyclonal antibodies, at least one of which apparently crossreacts with a portion of the proopiomelanocortin molecule. To begin to define the epitopes co...

Pregnancy hormones, such as prolactin, sensitize neural circuits controlling parental interactions to induce timely activation of maternal behaviors immediately after parturition. While the medial preoptic area (MPOA) is known to be critical for maternal behavior, the specific role of prolactin in this brain region has remained elusive. Here, we evaluated the role of prolactin action in the MPO...

Increasing prolactin levels or increasing responsiveness to prolactin may contribute to reproductive aging by influencing the secretory patterns of hypothalamic GnRH, pituitary gonadotropins, and/or ovarian steroids. Some studies have documented changes in the levels of prolactin in peripheral plasma. The goal of this study was to determine whether prolactin receptor mRNA levels in the brain ch...

background: systemic lupus eyrythematosus (sle) is an autoimmune disease charac-terized by antibodies to nuclear antigens, particularly anti-dsdna. imbalance between production and destruction of immune cells causes cytopenia. sex hormones have im-munomodulatory effects; estrogen increases the production of autoantibodies in sle prone nzb/nzw mice. objective: to investigate the relationship bet...

OBJECTIVE To investigate prolactin levels and related side effects in 128 men and 90 women initially treated with risperidone. METHOD Patients initially treated with risperidone were followed over 5 years, during which 45% were switched to other antipsychotic drugs. RESULTS Initially, prolactin levels were fivefold the norm in women, and threefold in men. Diagnosis did not affect the prolac...

BACKGROUND Pemphigus vulgaris is a chronic inflammatory disease of skin, the etiology of which is not completely known. Despite the latter, anti-desmoglein antibodies play a proven role in the pathogenesis. Recent studies showed an etiologic effect for prolactin in the pemphigus vulgaris. This study aimed to quantify the correlation between serum prolactin levels and anti-desmoglein antibodies ...

BACKGROUND Prolactin performs as a neuroendocrine modulator of skin epithelial cell proliferation and the skin immune system. OBJETIVE The aim was to assess the serum prolactin levels in patients with atopic dermatitis and the relationship with disease severity. METHODS The study was performed on 46 patients with atopic dermatitis and 100 healthy controls aged between 0.5 years and 19.5 yea...

The authors explored whether prolactin is associated with paternal care in 3 monkey species: titi monkey (Callicebus cupreus), common marmoset (Callithrix jacchus), and Goeldi's monkey (Callimico goeldii). They compared prolactin levels in fathers before and after infant birth as well as between fathers and nonfathers. C. cupreus fathers carry infants almost exclusively, have higher prolactin l...