ABSTRACT
Objective@#To investigate clinical characteristics and treatment of phytophotodermatitis due to ingesting Chenopodium album.@*Methods@#This study included 11 patients with phytophotodermatitis caused by ingesting Chenopodium album collected from Department of Dermatology, Affiliated Hospital of Jining Medical University from 2013 to 2017. The patients′ general information, clinical manifestations, laboratory test results, treatment and prognosis were retrospectively analyzed.@*Results@#All the 11 patients were female, and their age ranged from 45 to 62 years. They all had a history of ingesting Chenopodium album and exposing to sunlight within 1 - 2 days prior to the disease onset. Clinical manifestations included symmetrically distributed, painful and pruritic, nonpitting, swelling erythema on the face and back of both hands and at sunexposed sites of forearms, with a tense and bright surface. Increased white blood cell counts were observed in 6 patients, and increased eosinophil counts in 1. All of the 11 patients were treated with systemic methylprednisolone, loratadine, ebastine, spironolactone, furosemide and omeprazole as well as topical agents, 2 also received human immunoglobulin treatment, and 3 were also treated with oral ibuprofen and codeine for painful lesions. Ten patients received obvious improvement and were discharged after 7 - 10 days of treatment, and no pigmentation or scars were observed after 1-year follow-up. Skin necrosis occurred on the back of both hands in 1 patient after 7-day treatment, and scars remained in the patient after follow-up of half a year.@*Conclusions@#Chenopodium album-induced phytophotodermatitis commonly manifests as swelling erythema on the exposed body sites. After confirmed diagnosis, Chenopodium album ingestation and sunlight exposure should be avoided, and timely antianaphylactic treatment should be considered to effectively control the disease.
ABSTRACT
Objective To investigate clinical characteristics and treatment of phytophotodermatitis due to ingesting Chenopodium album.Methods This study included 11 patients with phytophotodermatitis caused by ingesting Chenopodium album collected from Department of Dermatology,Affiliated Hospital of Jining Medical University from 2013 to 2017.The patients' general information,clinical manifestations,laboratory test results,treatment and prognosis were retrospectively analyzed.Results All the 11 patients were female,and their age ranged from 45 to 62 years.They all had a history of ingesting Chenopodium album and exposing to sunlight within 1-2 days prior to the disease onset.Clinical manifestations included symmetrically distributed,painful and pruritic,nonpitting,swelling erythema on the face and back of both hands and at sunexposed sites of forearms,with a tense and bright surface.Increased white blood cell counts were observed in 6 patients,and increased eosinophil counts in 1.All of the 11 patients were treated with systemic methylprednisolone,loratadine,ebastine,spironolactone,furosemide and omeprazole as well as topical agents,2 also received human immunoglobulin treatment,and 3 were also treated with oral ibuprofen and codeine for painful lesions.Ten patients received obvious improvement and were discharged after 7-10 days of treatment,and no pigmentation or scars were observed after 1-year follow-up.Skin necrosis occurred on the back of both hands in 1 patient after 7-day treatment,and scars remained in the patient after follow-up of half a year.Conclusions Chenopodium album-induced phytophotodermatitis commonly manifests as swelling erythema on the exposed body sites.After confirmed diagnosis,Chenopodium album ingestation and sunlight exposure should be avoided,and timely antianaphylactic treatment should be considered to effectively control the disease.
ABSTRACT
Objective To evaluate the inhibitory effect of butyl flufenamate (BT) on ultraviolet (UV)-induced acute skin phototoxic reaction,and to investigate its possible mechanisms.Methods Eight SKH-1 hairless mice were included in this study.The back of each SKH-1 hairless mouse was divided into six regions,which were then randomly classified into six groups:blank group receiving no treatment,UV group receiving UV radiation only,BT + UV group and vehicle + UV group topically treated with BT ointment and vehicle respectively followed by UV radiation,UV + BT group and UV + vehicle group topically treated with BT ointment and vehicle respectively after UV radiation.Skin samples were obtained from these mice at 24 hours after treatment.Subsequently,hematoxylin-eosin (HE) staining was performed,real-time PCR was carried out to detect mRNA expressions of caspase-3,p53,COX-2,PGER1,interleukin (IL)-1β,IL-6,and an immunofluorescence assay was conducted to observe the expression of caspase-3.Statistical analysis was carried out by repeated-measures analysis of variance (ANOVA).Results Compared with the UV group,both BT + UV group and UV + BT group showed a decrease in the degree of skin edema and number of apoptotic cells at 24 hours after UV radiation.Real-time PCR showed that the mRNA expressions of caspase-3,p53,COX-2,PGER1,IL-l β and IL-6 were significantly higher in the UV group than in the blank group (all P ＜ 0.05),but significantly lower in the BT + UV group than in the UV group (all P ＜ 0.05),and only the expressions of caspase-3 and p53 mRNAs were significantly decreased in the UV + BT group compared with the UV group (both P ＜ 0.05).The immunofluorescence assay revealed that the expression of caspase-3 increased in the UV group compared with the blank group,but decreased in both BT + UV group and UV + BT group compared with the UV group.Conclusion BT could partially inhibit UV-induced acute skin phototoxicity in SKH-1 hairless mice.