Introduction
Methods
Novel case series
Literature review
Results
Novel case series
Case 1
PRKN-PD local cohort
Patient | Genetics | AAO (years) | Symptoms/management during menstruations | Number of pregnancies | Description of pregnancies | Breastfeeding |
---|---|---|---|---|---|---|
Case 1 | PRKN exon 3 deletion het + PRKN c1285 + 1G > A het pathogenic variant | 30 | Worsening of motor and non-motor features before menses | N = 2, medical assisted, after PD diagnosis | N = 1 early miscarriage due to anembryonic pregnancy, no changes in PD medications (levodopa/benserazide 300/75 mg/day) N = 1 full-term pregnancy, vaginal birth, healthy baby girl. Perception of asthenia/fatigue during the first trimester of pregnancy, rapidly ameliorated during the second and third semester. No changes in medications (levodopa/benserazide 300/75 mg/day) | No, artificial milk to avoid exposure of PD medications |
Case 2 | PRKN exon 3 deletion homo | 30 | Worsening of motor and non-motor features before menses | N = 3, before PD diagnosis | N = 2 full-term pregnancies, C-section, 2 healthy babies Pain and rigidity in right lower limb in the third trimester during the first pregnancy and in the puerperium of the second pregnancy N = 1 voluntary abortion | No, artificial milk for reasons unrelated to PD |
Case 3 | PRKN exon 5,6 duplication | 40 | Worsening of motor and non-motor features before menses, response to estrogenic replacement treatment after menopause | N = 3, before PD diagnosis | N = 2 full-term pregnancies, 1 vaginal birth, and 1 C-section, healthy babies N = 1 miscarriage | Yes |
Case 4 | PRKN exon 3,4 deletion | 33 | Worsening of motor and non-motor features before menses | N = 0 | NA | NA |
Case 5 | PRKN mutation, NS | 39 | No modifications | N = 0 | NA | NA |
Case 6 | PRKN exon 5.6 deletion | 39 | No modifications | N = 2, before PD diagnosis | N = 2 full-term pregnancies, vaginal births, healthy babies | Yes |
Literature review
Study | Genetics | AAO (years) | Symptoms/management during menstruations | Number of pregnancies | Description of pregnancies | Breastfeeding |
---|---|---|---|---|---|---|
Serikawa et al., 2011 (N = 1) | PRKN exon 2–4 deletion | 12 | Worsening of symptoms between ovulation and menstruation | N = 1 dichorionic/diamniotic twin pregnancy, after PD diagnosis | Inpatient hospital care and discontinuation of antiparkinsonian drugs except levodopa/carbidopa (450 mg/day); worsening of motor symptoms in the third trimester; gradually increase levodopa/carbidopa up to 700 mg/day, resumption of entacapone (400 mg/day) and selegiline (7.5 mg/day) C-section at 35th week of gestation due to preterm premature rupture of the membranes Two healthy male twins, non-surgical ventricular septum defect in one of the babies | No, synthetic milk to avoid exposure to PD medications |
Sprenger et al., 2014 (N = 2) | Patient 1: genetic testing NA (sibling of patient 2) Patient 2: PRKN intron 6 homo pathogenic variants (c.734 + 1G > A) | 34 37 | Patient 1,2: perimenstrual worsening of symptoms and response to dienogest-ethinylestradiol (75 lg) for continuous use | NA | NA | NA |
Scelza et al., 2015 (N = 3) | Patient 1, NS “Parkin mutation” | 19 | NS | N = 4, after PD diagnosis | N = 1 healthy female, NS birth, NS PD medications N = 1 female with suffering from a severe atrial defect, NS birth, NS PD medications N = 1 voluntary abortion (fear of teratogenic effects of antiparkinsonian drugs) N = 1 single pregnancy while on STN-DBS, pharmacological treatment (NS) discontinuation without worsening of motor symptoms; C-section at full term because of the baby’s abnormal position; worsening of right leg dystonia and impairment in walking 1 week after delivery | N = 2 NS (prior to STN-DBS) N = 1 safe breastfeeding (while on STN-DBS, no pharmacological treatment) |
Patient 2 and patient 3, NS “Parkin mutations” | NS | NS | Patient 2,3 N = 4 singleton pregnancies, after PD diagnosis | Patient 2,3, N = 2 “healthy pregnancies,” while on STN-DBS + PD NS pharmacological treatment. Type of birth and symptoms NS Patient 2, N = 2 voluntary abortions (fear of teratogenic effects of PD medications) Patient 3, N = 2 spontaneous abortion for unknown reasons (the first when taking levodopa, the second when taking rasagiline, trihexyphenidyl, and levodopa) | Patients 2 and 3, no breastfeeding but synthetic milk to avoid exposure to PD medications | |
Sazci, 2019 (N = 1) | PRKN three silent mutations: bases 429 (C > T), 513 (G > A), and 667 (C > T). The missense mutations detected at bases 932 (A > G) and 1111 (G > A) replace Gln311 with Arg and Ala371 with Thr respectively | 34 | NS | N = 1 singleton pregnancy before PD diagnosis N = 1 singleton pregnancy after PD diagnosis | N = 1 “Healthy baby,” type of birth NS (before PD diagnosis) N = 1 miscarriage at first semester (after PD diagnosis), no changes in PD medications: levodopa 100 mg/carbidopa 25 mg/200 mg × 5/day, pramipexole 1 mg × 3/day, rasagiline 1 mg/day. Amelioration of motor symptoms (H&Y from stage 3 to stage 1, MDS-UPDRS part III from 32 to 6) | NS |
Lim et al., 2021 (N = 1) | PRKN homozygous p.Cys441Arg (c.1321 T > C) | 16 | NS | N = 1 singleton pregnancies after PD diagnosis N = 1 voluntary abortion after PD diagnosis (fear of teratogenic effects of PD medications) | N = 1 “Healthy boy,” type of birth NS, levodopa, symptoms NS | NS |
Fumihito Yoshii et al., 2021 (N = 1) | PRKN exon 3–4 deletion, c.535-3A > G | 24 | NS | N = 1 singleton pregnancy after PD diagnosis | N = 1 healthy baby, type of birth NS, levodopa discontinuation with worsening of lower limbs dystonia | Safe breastfeeding, no pharmacological treatment, resumption of levodopa/carbidopa after breastfeeding (200 mg/die) with benefit on lower limbs dystonia |