Objective To discuss the clinical features of dystonia manifested as Parkinsonism ( PKS) . Methods Clinical materials of a patient with dystonia manifested as PKS were analyzed retrospectively. Results The onset age of the young women was 31 years old, who was started asymmetrically with symptoms of claudication and tremor of the right foot. Levodopa had a short-term effect. The results of dopamine transporter ( DAT) PET showed that DAT in retrolentiform part were decreased significantly. Atypical Parkinson's disease was considered and she was treated as PKS long-termly. Subsequently, heterozygous mutation of c. 268-4T>A (NM_018105) in DYT6 gene was found through the next-generation sequencing, which was a kind of splicing mutation and confirmed by the first-generation sequencing. Conclusions Patients with dystonia might share similar clinical manifestations with PKS. Particularly, they should be differentiated with young-onset Parkinson's disease combined with focal dystonia. Clinical observation and genetic testing are important approaches to differentiate them.

In recent years, the increasing incidence of perinatal depression has become an important public health problem. In addition to the traditional social demographic factors, biological factors, obstetric factors, etc., the association between air pollution and perinatal depression (PND) has also attracted more and more attention. In this paper, studies on the association between air pollution and PND were reviewed, especially the associations of PND with ambient air pollutants such as PM_2.5, PM₁₀, NO₂, and O₃ as well as indoor air pollutants such as tobacco smoke, and the characteristics and possible biological mechanisms of the influence of different pollutants on PND were summarized. Based on the available studies, various outdoor air pollutants are associated with PND, and some pollutants may exhibit a dose-response relationship with it. As for indoor air pollution, studies only have focused on the impact of tobacco exposure on PND, and as yet, no study has explored the association between other indoor pollutants (e.g. cooking oil smoke and solid fuel) and PND. Current studies indicate that air pollution may act on PND through oxidative stress and neuroendocrine mechanisms, but the exact biological mechanism remains to be further studied. In the future, further studies should be encouraged on the epidemiological associations of other indoor air pollutants with PND and the interactions between other factors and air pollution on PND, and the underlying biological mechanisms, to provide new insights for the prevention of PND from the perspective of environmental health.