The love-shaper: role of the foetus in modulating mother-child attachment through stem cell migration to the maternal brain.

BACKGROUND: Foetal PAPCs (pregnancy-associated progenitor cells) begin to cross the placenta in a scheduled manner from early pregnancy and colonise many maternal organs, both in mammals and humans, during each pregnancy. The maternal limbic system appears to be colonised with a 100% frequency when compared with other maternal organs. Once they arrive in the limbic system, foetal PAPCs differentiate into neurons and glial cells, resulting in the formation of new synapses with and among maternal neurons. This process is accompanied by major structural neurobiological alterations orchestrated by hormonal changes characteristic of gestation and involves the limbic system, reward areas, and other closely connected brain structures, i.e., the same areas colonised by foetal PAPCs. OBJECTIVE: To correlate findings regarding microscopic and macroscopic changes induced by foetal stem cell migration into the maternal limbic system and hormonal surges during pregnancy with the biological basis of mother-child attachment dynamics, with a focus on the clinical implications this discovery has for normal, complicated, and assisted pregnancies. EVIDENCE REVIEW: A literature review of evidence regarding the neuroanatomical correlation between the targeted, colonising migration of foetal PAPCs into the maternal brain and the structural neurobiological alterations within the affective areas related to attachment and reward was conducted. RESULTS AND CONCLUSIONS: These findings suggest a synergic effect of cellular and morphological changes, with a common biological aim of conferring an adaptive advantage in motherhood, and with the foetus playing a surprisingly active role in modulating the mother's ability to love and care for it.

Fetal stem cells migration into the maternal brain and the morphological alterations of the latter occurring during pregnancy appear to confer an adaptive advantage in motherhood, with the fetus playing a surprisingly active role in modulating the mother's ability to love and care for it.

Vitamin D Supplementation for Premenstrual Syndrome-Related Mood Disorders in Adolescents with Severe Hypovitaminosis D.

STUDY OBJECTIVE: Premenstrual syndrome (PMS) might become severe enough to interfere with normal interpersonal relationships. This study was planned to assess whether administration of vitamin D (200,000 IU at first, followed by 25,000 IU every 2 weeks) for a 4-month period might lessen the appearance and the intensity of mood disorders associated with PMS in young girls with severe hypovitaminosis D. DESIGN, SETTING, PARTICIPANTS, INTERVENTIONS, AND MAIN OUTCOME MEASURES: One hundred fifty-eight young girls (15-21 years old) with PMS-related severe symptoms of the emotional and cognitive domains and low serum 25-hydroxycholecalciferol (25-OH-D) levels (≤10 ng/mL) were randomly assigned to two treatment groups and treated for 4 months with vitamin D (group 1; n = 80) or placebo (group 2; n = 78). Clinical and hormonal effects were compared between the two groups. RESULTS: In patients from group 1, levels of vitamin D reached the normal range (35-60 ng/mL) after the first month and remained stable throughout the whole study. At the end of treatment, anxiety score decreased from 51 to 20 (P < .001 vs baseline); irritability score declined from 130 to 70 (P < .001 vs baseline). Crying easily and sadness decreased by a score of 41 and 51 to a score of 30 and 31, respectively (P < .001). For disturbed relationships, the score decreased from 150 to 70 (P < .001). Conversely, no appreciable changes were noted in symptom intensity from patients of group 2. The frequency of adverse events (nausea and constipation) was not different between participants of group 1 and group 2. CONCLUSION: On the basis of the present findings, vitamin D therapy can be proposed as a safe, effective, and convenient method for improving the quality of life in young women with severe hypovitaminosis D and concomitant mood disorders associated with PMS.