Lipoma of hemangiopericytomas (LHPC) is one ofrare soft-tissue tumors that grow slowly and occur in deep soft tissues. The classical histological morphology of LHPC is circularor spindle undifferentiated tumor cells that grow surrounding the thin-walled branching blood vessels. The clinical and pathological features of one patient with LHPC are retrospective analyzed to strengthen the understanding of LHPC.

Objective To explore a novel quantitative detection method for the concentration of specific IgG (sIgG) in food intolerance, taking egg sIgG detection for the example. Methods A total of 173 patients underwent food allergen sIgG detection were included in this study, and 78 healthy subjects were used as negative controls. The microtiter plates were coated with biotinylated bovine serum albumin (BSA) and linked with streptavidin. Then, the biotinylated egg antigen and specimen were successively added into the wells of plate.After washing, enzyme labeled anti-human IgG was added to establish an antigen indirectly coated liquid-phase reaction patterns of ELISA method. The concentration of the biotinylated allergens and enzyme labeled antibody were optimized and the reaction conditions were determined. This method was used to detect the sIgG in serum samples. Results The biotinylated egg white was selected as antigen, the optimal dilution rate was 1∶2 000,and the most suitable enzyme labeled antibody dilution ratio was 1∶12 000 in this method. The within-run and the between-run coefficients of variation were 4.83%-8.55%and 4.88%-7.93%respectively. The specificity is preferable, the species-crossed reaction rates with crab, cow milk and goat milk were＜10%. There was a good correlation between the assay developed in this study and the food intolerance detection kit provided by United States BIOMERICA Inc ( =0.977X+8.45, r=0.961, P＜0.05). Conclusion The detection method can be used to detect serum sIgG for egg intolerance patients with easy operation, highly accuracy and specificity. Furthermore, it showed the capacity of excellent repeatability and flexibility potential, which provided a good foundation for developing a kind of“personalized”random combination of food varieties ELISA kit.

Purpose To investigate the relation of EGFR and KRAS gene mutations with the pathological characteristics in non-small cell lung cancer (NSCLC).Methods The EGFR and KRAS gene mutations were detected and analyzed in 64 patients with NSCLC by capillary electrophoresis and fluorescent probe method.Results In 64 cases,the EGFR gene mutations were detected in 27 patients (42.2％);the KRAS gene mutations in 8 patients (12.5％).The EGFR and KRAS mutations synchronized in 4 patients (6.25％).The mutations rate of EGFR was related to gender,histology type and smoking condition (P ＜ 0.05).There was no association between mutation of EGFR gene with the age,differentiation,lymph node metastasis and TNM stages (P ＞ 0.05).The mutations rate of KRAS gene was higher in adenocarcinoma patients than that in squamous carcinoma (P ＜ 0.01).There was no relationship between mutation of KRAS gene with the gender,age,smoking condition,differentiation,lymph node metastasis and TNM stages (P ＞ 0.05).Conclusion In NSCLC,EGFR gene mutations rate is higher than KRAS gene mutation.The mutation rate of EGFR gene is higher in female,adenocarcinoma and never smokers;the mutations rate of KRAS mutations is higher in patients with adenocarcinoma.The mutations in EGFR and KRAS can exist at the same time.

Objective To improve the detecting sensitivity of serum specific IgE (sIgE) by improving the quality of coated antigen in shrimp. Methods The extracts from shrimp protein was prepared. Western blot assay was used to identify the major allergenic protein components. The protein components>55 ku were separated by Sephadex gel chromatography. SDS-PAGE technology was used to analyze proteins. Samples of shrimp protein and proteins>55 ku were used as the coat-ing antigen to coat 96 microplate respectively. Western blot assay and ELISA were used to evaluate preliminary sensitivity of the purified antigen for detecting sIgE. Results Immunoblot experiments showed that the protein>55 ku was the main aller-genic protein component of shrimp. Those >55 ku proteins were separated successfully by Sephadex gel chromatography, showing 10 identifiable bands in SDS-PAGE. Dot-pot immunoassay showed that proteins>55 ku used as coated antigens could improve the spots density of the weak serum. Meanwhile, the result of ELISA showed that sIgE detection value in-creased 92.9%in patients with shrimp allergy after coating effective antigens. Conclusion The detecting sensitivity of sIgE can be improved by using effective protein components of shrimp as coated antigens.

Objective: To establish an analytical method for serum prolactin (PRL) based on the photoinduced chemiluminescence technology, and evaluate its performance. Methods: A pair of PRL monoclonal antibodies were labeled with luminescent nanospheres and biotin respectively, and the double antibody sandwich detection system was formed with the serum prolactin and streptavidin-labeled photosensitive microspheres (universal photosensitive solution) under homogeneous conditions. The performance index and correlation of the detection system were evaluated. Results: The precision of intra-assay and within-day (coefficient of variation) of the developed assay were 4.60% and 5.25%, respectively. The functional sensitivity was 2.48 μIU/mL, and its reportable results were ranged from 2.48 to 4 240 μIU/mL. The recovery rates of different PRL calibrators (42.2, 424, 4 240 μIU/mL) added to human sera were ranged from 96.25% to 102.93%. There was no interference from bilirubin＜20 mg/dL, hemoglobin＜200 mg/dL, triglyceride＜3 000 mg/dL and biotin＜20 ng/mL. Also, the light-initiated chemiluminescent assay for PRL (PRL-LICA) correlated well with Beckman Unicel Dxi 800 Access 2. Conclusions LICA showed effective performance for detecting PRL in human serum, and it could meet the basic requirements of clinical diagnosis.

Objective To investigate the prevalence of the loss of basic activities of daily living (ADL) and instrumental ADL (IADL) influencing factors in the elderly population in China and provide evidence for the effective keeping and improvement of the elderly daily living.Methods The information about demographic characteristics and activities of daily living of elderly Chinese aged ≥ 60 years were collected by using the data of 2013 China Health and Retirement Longitudinal Study.The elderly's ADL of taking bath,eating,getting in and out of bed,dressing,toilet use,and defecating and the IADL of doing housework,cooking,making phone call,taking medicine,shopping and money managing were evaluated.The differences in loss of ADL among different populations were compared by x2 test and logistic regression analysis was conducted to identify influencing factors for the loss of ADL and IADL.Results The overall ADL loss rate was 23.8％ and the overall IADL loss rate was 35.4％ in elderly Chinese.The proportion of having trouble in toilet use was highest among all ADL items,followed by bathing and getting in and out of bed.The proportion of having trouble in making phone call was highest among all IADL items,followed by doing housework and money managing.Female,older age,low educational level,living in central and western China,chronic diseases and disability were factors associated with ADL loss and IADL loss;the divorced or separated,widowed were more likely to have ADL loss;people living in rural area were more likely to have IADL loss.Conclusion It is necessary to take comprehensive measures to delay and reduce the ADL and IADL loss in elderly Chinese and provide timely and appropriate health care for the elderly with ADL or IADL loss.

Objective:To evaluate the efficacy and safety of mitoxantrone hydrochloride liposome injection in the treatment of peripheral T-cell lymphoma (PTCL) in a real-world setting.Methods:This was a real-world ambispective cohort study (MOMENT study) (Chinese clinical trial registry number: ChiCTR2200062067). Clinical data were collected from 198 patients who received mitoxantrone hydrochloride liposome injection as monotherapy or combination therapy at 37 hospitals from January 2022 to January 2023, including 166 patients in the retrospective cohort and 32 patients in the prospective cohort; 10 patients in the treatment-na?ve group and 188 patients in the relapsed/refractory group. Clinical characteristics, efficacy and adverse events were summarized, and the overall survival (OS) and progression-free survival (PFS) were analyzed.Results:All 198 patients were treated with mitoxantrone hydrochloride liposome injection for a median of 3 cycles (range 1-7 cycles); 28 cases were treated with mitoxantrone hydrochloride liposome injection as monotherapy, and 170 cases were treated with the combination regimen. Among 188 relapsed/refractory patients, 45 cases (23.9%) were in complete remission (CR), 82 cases (43.6%) were in partial remission (PR), and 28 cases (14.9%) were in disease stabilization (SD), and 33 cases (17.6%) were in disease progression (PD), with an objective remission rate (ORR) of 67.6% (127/188). Among 10 treatment-na?ve patients, 4 cases (40.0%) were in CR, 5 cases (50.0%) were in PR, and 1 case (10.0%) was in PD, with an ORR of 90.0% (9/10). The median follow-up time was 2.9 months (95% CI 2.4-3.7 months), and the median PFS and OS of patients in relapsed/refractory and treatment-na?ve groups were not reached. In relapsed/refractory patients, the difference in ORR between patients with different number of treatment lines of mitoxantrone hydrochloride liposome injection [ORR of the second-line, the third-line and ≥the forth-line treatment was 74.4% (67/90), 73.9% (34/46) and 50.0% (26/52)] was statistically significant ( P = 0.008). Of the 198 PTCL patients, 182 cases (91.9%) experienced at least 1 time of treatment-related adverse events, and the incidence rate of ≥grade 3 adverse events was 66.7% (132/198), which was mainly characterized by hematologic adverse events. The ≥ grade 3 hematologic adverse events mainly included decreased lymphocyte count, decreased neutrophil count, decreased white blood cell count, and anemia; non-hematologic adverse events were mostly grade 1-2, mainly including pigmentation disorders and upper respiratory tract infection. Conclusions:The use of mitoxantrone hydrochloride liposome injection-containing regimen in the treatment of PTCL has definite efficacy and is well tolerated, and it is a new therapeutic option for PTCL patients.