In order to study on the properconcentrations for patch test(PT),and the availability of PT w ith the suspected cosm etic products used by the patients,PT ofvarious cosm etic products w as per- form ed on 35 healthy subjects and 38 patients w ith non-contactderm atitis and non-eczem a by using dif- ferent concentrations of cosm etic products and their vehicles in cosm etic products.In 62 patients w ith cosm etic derm atitis PT w as done using their ow n suspected causative cosm etic products.The results show ed thatm ost products could be tested “w ith originalproducts”,w ithout dilution,such as skin care products(cream ),lipsticks,hair care products(hair cream ,hair oil,m ousse),others had to be diluted, such as hair dyes,hotoiland soap,to 2% solution,sham poos to 5% solution,perm anent-w ave solutions and perfum es to 5% or 10% in distilled w ater,nailvarnish to 5% or 10% in acetone.The totalpositive rate of PT by using suspected cosm etics w as 95.16% .Our results indicate that PT concentrations and vehicles vary w ith different products in suspected cosm etics,PT of the suspected causative cosm etic products is an im portant m eans for the diagnosis of cosm etic derm atitis.Our study provides necessary data for the further study ofChinese standard cosm etic screening series allergens for PT.

Objective To explore the curative effect and prognosis of umbilical cord blood in the treatment of hematological diseases in children. Method The clinical data of 51 children who underwent umbilical cord blood transplantation from January 2011 to June 2016 were analyzed retrospectively. Results In 51 children (34 males and 17 females) with median age of 62 months, 32 children had malignant hematologic diseases and 19 children had nonmalignant hematologic diseases. Two children died before the granulocytes were reconstructed, 4 children had primary implantation failure, and 45 children had successfully implantation. The median time of implantation was 16 d, and the median time of platelet implantation was 23 d. The incidence of peri-implantation syndrome was 46.94%. The 100 day survival rate and long-term overall survival (OS) in children with peri-implantation syndrome were (73.9±9.2)% and (50.2±11.7)% respectively, which were significantly lower than the OS (100%) in children without peri-implantation syndrome (P<0.01). The incidence of acute graft versus host disease (aGVHD) was 55.10%, among which Ⅱ-Ⅲ degrees of aGVHD was 28.57% and Ⅳdegrees of aGVHD was 26.53%. The 100 day OS in children with Ⅳ degrees of aGVHD was (61.5±13.5)%, and The OS in children with Ⅲ and Ⅳ degrees of aGVHD were (75.0±21.7)% and (44.9±14.1)% respectively, and the OS in children without aGVHD was (90.2±6.6)%. The difference was statistically significant (χ2=14.35,P=0.002). The incidence of chronic GVHD (cGVHD) was 28.57%. The long-term OS in children with cGVHD was (72.7±13.4)%, while OS in children without cGVHD was 100%. The 100 days OS was (86.0±4.9)%. Long-term OS in cord blood transplantation was (77.9±6.3)%, among which OS for malignant hematological diseases was (76.6±7.8)% and OS for nonmalignant hematological diseases was (79.5±11.3)%. Among malignant hematological diseases, the OS in acute lymphoblastic leukemia (ALL) was (87.5±11.7)%, OS in acute myeloid lymphocytic leukemia (AML) was (76.7±10.3)%, and OS in myelodysplastic syndrome (MDS) was (33.3±27.2)%. Conclusions Umbilical cord blood transplantation is an effective treatment for hematologic diseases in children. It is important to treat the peri-implantation syndrome. Prevention and treatment Ⅲ/Ⅳ degree of aGVHD and cGVHD are important strategies to improve the efficacy of umbilical cord blood transplantation.

Humans ; Arthroplasty, Replacement, Knee/adverse effects* ; Surgical Wound Infection/etiology* ; Retrospective Studies ; Risk Factors ; Arthroplasty, Replacement, Hip/adverse effects* ; Prosthesis-Related Infections/etiology*

Objective To report a pedigree with tyrosinemia type Ⅱ,and to analyze its causative mutations.Methods Clinical data were obtained from a 10-year-old male proband with tyrosinemia type Ⅱ,and analyzed retrospectively.Blood and urine samples were collected from 19 persons in 3 generations of the pedigree,and the amino acid level was detected in these samples.Genomic DNA was extracted from all of the 19 family members,and mutations in the tyrosine aminotransferase (TAT) gene were detected.Results The patient developed photophobia at 2 months after birth,and the symptom was gradually aggravated after that.At the age of 6 years,ocular pain and photophobia occurred.At the age of 8 years,linear keratotic plaques occurred on his fingertips and soles of both feet,with obvious tenderness.Ophthalmic examination showed no obvious abnormalities in corneal staining or ocular fundus.Skin examination showed multiple linear keratotic plaques on the fingers and soles of both feet.The serum tyrosine level was 825.64 μmol/L,and the level of p-hydroxyphenyllactic acid in urine was 161.4 μmol/L.Genetic testing showed 2 novel mutations,including c.236G ＞ A at position 236 in exon 2 of the TAT gene causing the substitution of glycine by glutamic acid (p.Gly79Glu),and c.1141G ＞ T at position 1141 in exon 10 of the TAT gene leading to the formation of a premature termination codon instead of glutamic acid (p.Glu381*).The proband was the only patient in the family.Some members in the patrilineal family carried the mutation c.1141G ＞ T (p.Glu381*),and some in the maternal family carried the mutation c.236G ＞ A (p.Gly79Glu).Conclusion This is the first case of tyrosinemia type Ⅱ reported in the domestic population,and 2 novel heterozygous mutations were identified in the TAT gene,which may lead to the occurrence of tyrosinemia type Ⅱ in the patient.

Humans ; Arthroplasty, Replacement, Knee/adverse effects* ; Arthritis, Rheumatoid/surgery* ; Risk Factors ; Patients ; Arthroplasty, Replacement, Hip/adverse effects*

Objective: To evaluate the role of histologicalpathology in the diagnosis of periprosthetic joint infection. Methods: A total of 145 cases of joint arthroplasty during October 2017 and October 2018 from Beijing Jishuitan Hospital were collected. There were 23 cases of infection, including knee joint arthroplasty (12 cases) and hip arthroplasty (11 cases). There were 17 females and 6 males. Patients′ age ranged from 39 to 76 years (mean 63 years). The infection was diagnosed if there were >5 neutrophils per high power field in at least 5 high power field. The permanent sections were examined twice separately by two pathologists, and the interval time of histologic examination was at least two weeks. Sensitivity (SE), specificity (SP), positive predictivevalue (PPV), and negative predictive value (NPV) were calculated. The consistency evaluation of histologic examination of two pathologists was calculated by Kappa analysis. Results: The neutrophil cells could locate scattered or focally in the synovium tissue of periprosthetic joint infection. Somewhere, the infiltration of vessel and the perivascular distribution could also exist. Opportunity coincidence rate between two pathologists was 91.3% (Kappa=0.817). The results showed that SE was 60.9%, SP was 100.0%, NPV was 93.1%, PPV was 100.0%. Conclusions The presence of polymorphonuclear cells in histologic examination is correlated with infection. There was high consistency between histologic examination and clinical diagnosis of joint arthroplasty.