Objective To investigate the eye lens and hand dose levels of interventional radiology workers in Baoji City, China, and to provide data reference for radiation protection. Methods In two general hospitals, the eye lens and finger doses of 121 interventional radiology workers were monitored between 2021 and 2023. The average annual dose levels and dose distribution were analyzed based on years, job positions, surgical sites, and duties during surgery. Results The average annual dose to the eye lens was 3.36 mSv, with the highest dose of 16.36 mSv. The average annual dose to the fingers was 3.38 mSv, with the highest dose of 17.72 mSv. The average annual dose to the eye lens and fingers decreased from 2021 to 2023. The average annual dose to the eye lens of the interventional surgeons was higher than those of the technicians and nurses, while the average annual dose to the fingers of the interventional surgeons was higher than that of the technicians. The average annual doses to the eye lens and fingers of the first operator were similar to those of the second operator, but both were higher than other personnel involved in the interventional surgery, and the differences were statistically significant (all P < 0.05). There were linear regression relationships between the annual doses to the eye lens and fingers and the effective whole-body dose of the interventional radiology workers. A paired test was conducted on the annual dose to the eye lens and fingers of the interventional workers for different surgical sites. The cardiovascular and peripheral vascular interventional workers had higher average annual doses to the eye lens than to the fingers, the cerebrovascular interventional workers had a higher average annual dose to the fingers than to the eye lens, and the differences were statistically significant. Conclusion The annual doses to the eye lens and fingers of the interventional radiology workers in Baoji City were lower than the national limits. However, some workers showed eye lens annual doses close to the new international standard limit (20 mSv). Special attention should be given to interventional physicians, especially the first and second surgeons.

Objective To investigate the roles of neuroinflammation and pathology of peripheral nervous system in the pathogenesis of Parkinson's disease (PD).Methods Immunohistochemical staining was performed to examine the nodose ganglia (containing vagus nerve) and intestine of an autopsy case of PD.The neuroinflammation and morphological changes of vagus nerve and enteric nervous system were observed.Results The expressions and distributions of glial fibrillary acidic protein and ionized calcium binding adapter molecule 1,two typical glia cell biomarkers,were different in vagus nerve and intestinal mucosa.Tumor necrosis factor α and inducible nitric oxide synthase were expressed in intestinal mucosa and myenteric plexus of the PD patient.There was a strong inflammatory reaction in the myenteric plexus,which distributed diffusely.Conclusion Satellite glial cells and intestinal inflammatory response may play a role in the pathogenesis of PD.

Objective To develop a new method for correction of the deformity of the complete bilateral cleft lip with short pre-lip. Methods Two specimens with the complete bilateral cleft lip was chosen to investigate the arterial supply to the pre-lip. The arteries were observed by radiography when the specimen was infused with lead oxide. 16 patients with the complete bilateral cleft lip and shortage in the length of pre-lip were enrolled in this study. Taking advantage of the unique character of arterial supply of complete bilateral cleft lip, those with short pre-lip were corrected. Photos of them were taken when preand post-operation for further measurement. And more than 1 year following-up was conducted to judge if the results were good enough or not. 30 babies were chosen as a control group to confirm the results of surgury objectively. Results Post nasal septal arteries were found to supply the pre-lip of the bilateral complete cleft lip. Appearance of 16 patients was good after surgery or 1 years later. There was no statistical significant difference between the patients and control group in the measurement data but nasal-lip angle. Conclusion It is an effective way to correct deformity of the bilateral cleft lip with short pre-lip by taking advantage of post nasal septal arterie's flap.