Objective:To develop a remote monitoring system for blood counting and temperature of banked blood in the transfusion department based on 2.4G wireless transmission technique with STM32 single-chip,so as to implement remotely dynamic monitoring for counting and temperature of banked blood in transfusion department.Methods:Based on 2.4G wireless transmission technique with STM32 single-chip,the NRF24L01 wireless transceiver was adopted in this design.STM32 single-chip was used as the processor,and QT50 infrared photoelectric sensor was used to sense the counting for stored blood,and LM35DT temperature sensor was used to collect temperature.The display screen adopted high-brightness digital tube of light emitting diode(LED)of Quanhai(QH)series,so as to achieve accurate data transmission and dynamic monitoring for temperature.Results:The measurement for multiple rooms indoors showed that the distance of wireless transmission can reach 45m without delay,and the counting for banked blood was accurate,and the range of controlling temperature was±0.24℃,which controlled precision was higher than that(±1℃)of national standard.It has ultra-high sensitivity for high and low alarm temperature,which buzzer will alarm when the temperature rises to 7℃or falls to 1℃,and the action time was less than 1s.Conclusion:The developed remote monitoring system for blood counting and temperature of banked blood in transfusion department is flexible in use,and it has stable performance,which can timely prevent the occurrence of blood damage,and greatly reduce the workload of transfusion department.It has a broad application prospect.

Objective:To develop a remote monitoring system for blood counting and temperature of banked blood in the transfusion department based on 2.4G wireless transmission technique with STM32 single-chip,so as to implement remotely dynamic monitoring for counting and temperature of banked blood in transfusion department.Methods:Based on 2.4G wireless transmission technique with STM32 single-chip,the NRF24L01 wireless transceiver was adopted in this design.STM32 single-chip was used as the processor,and QT50 infrared photoelectric sensor was used to sense the counting for stored blood,and LM35DT temperature sensor was used to collect temperature.The display screen adopted high-brightness digital tube of light emitting diode(LED)of Quanhai(QH)series,so as to achieve accurate data transmission and dynamic monitoring for temperature.Results:The measurement for multiple rooms indoors showed that the distance of wireless transmission can reach 45m without delay,and the counting for banked blood was accurate,and the range of controlling temperature was±0.24℃,which controlled precision was higher than that(±1℃)of national standard.It has ultra-high sensitivity for high and low alarm temperature,which buzzer will alarm when the temperature rises to 7℃or falls to 1℃,and the action time was less than 1s.Conclusion:The developed remote monitoring system for blood counting and temperature of banked blood in transfusion department is flexible in use,and it has stable performance,which can timely prevent the occurrence of blood damage,and greatly reduce the workload of transfusion department.It has a broad application prospect.

BACKGROUND: Breast cancer patients who are positive for hormone receptor typically exhibit a favorable prognosis. It is controversial whether chemotherapy is necessary for them after surgery. Our study aimed to establish a multigene model to predict the relapse of hormone receptor-positive early-stage Chinese breast cancer after surgery and direct individualized application of chemotherapy in breast cancer patients after surgery. METHODS: In this study, differentially expressed genes (DEGs) were identified between relapse and nonrelapse breast cancer groups based on RNA sequencing. Gene set enrichment analysis (GSEA) was performed to identify potential relapse-relevant pathways. CIBERSORT and Microenvironment Cell Populations-counter algorithms were used to analyze immune infiltration. The least absolute shrinkage and selection operator (LASSO) regression, log-rank tests, and multiple Cox regression were performed to identify prognostic signatures. A predictive model was developed and validated based on Kaplan-Meier analysis, receiver operating characteristic curve (ROC). RESULTS: A total of 234 out of 487 patients were enrolled in this study, and 1588 DEGs were identified between the relapse and nonrelapse groups. GSEA results showed that immune-related pathways were enriched in the nonrelapse group, whereas cell cycle- and metabolism-relevant pathways were enriched in the relapse group. A predictive model was developed using three genes ( CKMT1B , SMR3B , and OR11M1P ) generated from the LASSO regression. The model stratified breast cancer patients into high- and low-risk subgroups with significantly different prognostic statuses, and our model was independent of other clinical factors. Time-dependent ROC showed high predictive performance of the model. CONCLUSIONS A multigene model was established from RNA-sequencing data to direct risk classification and predict relapse of hormone receptor-positive breast cancer in Chinese patients. Utilization of the model could provide individualized evaluation of chemotherapy after surgery for breast cancer patients.
Humans ; Female ; Breast Neoplasms/genetics* ; East Asian People ; Neoplasm Recurrence, Local/genetics* ; Breast ; Algorithms ; Chronic Disease ; Prognosis ; Tumor Microenvironment

Objective: To develop a new method for the determination of calcipotriol ointment by high-speed counter-current chro-matography(HSCCC). Methods: An HSCCC method was used coupled with two-phase solvent system consisting of petroleum benzine-ethanol -water(2: 1: 0. 5, v/v/v). The injection volume was 1. 0 ml and the detection wavelength was set at 265 nm. Results: The proposed method showed good linearity within the range of 4.02-40.20 μg·ml-1(r=0.999 4). The average recovery was 99.2%, and the RSD was 0. 4% (n=9) . Conclusion: The HSCCC method is simple and rapid, and suitable for the determination of calcipo-triol ointment.

Objective To discuss the value of body adiposity index( BAI) in the prediction of the risk of dysglycemia,dyslipidemia and hyperuricemia.Methods Five thousand and thirty residents as the participants from Jinshan New Area and nearby of Jinshan,Shanghai were enrolled,including 2004 males and 3026 females. The receiver operating characteristic curve( ROC) was drew to predict dysglycemia,dyslipidemia and hyperurice?mia by body mass index( BMI) ,waist circumference( WC) ,waist?hip ratio( WHR) and BAI in different gender groups.Medcale soft was used to compare the area under the curve.Results According to the ROC analysis,in males the area under curve in the prediction of dysglycemia of BMI,WC,WHR and BAI was 0.553,0.556,0. 538,0.540(P<0.05),and 0.513,0.523,0.523,0.535 in females(P<0.05).The area under curve in the predic?tion of dyslipidemia of BMI,WC,WHR and BAI was 0.641,0.626,0.563,0.588(P<0.05) in males and 0.617, 0.613,0.597,0.587(P<0.05) in females.The area under curve in the prediction of hyperuricemia of BMI,WC, WHR and BAI was 0.685,0.665,0.609,0.577(P<0.05) in males and 0.730,0.708,0.656,0.649(P<0.05) in females,and BMI, WC of AUC were higher than BAI both in males and females(P<0.05).Conclusion BAI could be a predictor for the risk of metabolic disease,but less than BMI and WC.

Objective To evaluate the risk factors for diabetic foot in patients with type 2 diabetic mellitus (T2DM).Methods One hundred and forty-three patients with T2DM including 63 cases with diabetic foot(DF) and 80 cases with non-diabetic foot (NDF) were recruited.All possible risk factors for diabetic foot were documented,including low density lipoprotein-cholesterol (LDL-C),homocysteine (Hcy),diabetic polyneuropathy(DPN),diabetic retinopathy(DR),peripheral vascular disease(PVD) and so on.Results (1) There were significant differences between DF group and NDF group in terms of general clinical data,including age(65.38±11.58) years old and (60.12±9.92) years old,precious history of foot ulcer(28.6％ (18/63) and 3.8％(3/80)),serum homocysteine(Hcy) ((23.24± 11.77) μmol/L and (18.62±7.74) μmol/L)),glycosylated hemoglobin(HbA1c) ((10.22±2.81) ％ and (8.67±2.30) ％),blood albumin (Alb) ((32.45±5.83) g/L and (38.58±4.71) g/L),LDL-C ((2.15±0.72) mmol/L and (2.60±0.78) mmol/L),diabetic nephropathy (DN) (77.8％ (49/63) and 45.0％ (36/80)),diabetic retinopathy (DR) ((73.0％ (46/63) and 33.8％ (27/80)),diabetic peripheral vascular disease (PVD) (93.7％ (59/63) and 65.0％ (52/80)) and diabetic peripheral neuropathy (DPN) (77.8％ (46/63) and 60.0％ (48/80)) (P ＜0.05).(2) Logistic regression analysis showed that the development of diabetic foot was significantly correlated with age(OR =1.09,95％ CI:1.02-1.16,P =0.01),Hcy (OR =1.12,95％ CI:1.03-1.22,P =0.01),DR(OR=8.47,95％CI:1.85-38.87,P=0.01),PVD(OR=8.73,95％CI:1.07-70.92,P =0.04) and precious history of foot ulcer (OR =12.28,95％ CI:1.57-96.28,P =0.02).Conclusion Complications due to multiple factors of Diabetic foot,and Hcy is another risk factor for that.

Objective To establish an animal model of calpastatin ( CAST) transgenic mice by inserting the full hu-man CAST into the genome of C57BL/6J mice.Methods Recombinant transgenic vector pRP .EX3d-EF1A-CAST-IRES-eGFP was constructed by Gateway technology .It was injected into the fertilized eggs from C 57BL/6J mice.The injected eggs were transplanted into the oviduct of pseudopregnant mice .Tail DNA PCR screening was performed to identify the positive founder mice.The expressions of CAST mRNA and protein in tissues of the transgenic mice were detected by RT -PCR and Western blotting.Results Ninty eggs were transplanted into the oviducts of 3 recipients.The transplantation success rate was 100%.23 viable offsprings were born from the recipients .Tail DNA PCR screening showed that two of the offsprings were positive transgenic mice .The positive rate of transgenic mice was 9%.RT-PCR assay revealed that CAST mRNA ex-pressions were present in the heart , liver, kidney, lung, spleen, brain and skeletal muscle of the transgenic mice .Addition-ally, the CAST protein expression was significantly increased in the transgenic mice .Conclusion CAST transgenic mice have been successfully established and provide a good animal model support for further studies on the CAST function .

Objective The purpose of the present study was to investigate the effect of peroxisome proliferator-activated receptors δ（PPAR δ）activation with dietary GW610742X on the expression of tenascin-C in the infarcted and remodeling myocardium.Methods Sixty male Wistar rats were divided into four groups,including control group,sham group,myocardial infarction（MI） group,and MI＋GW610742X（GW）group.The left coronary artery was ligated to establish the MI model.PPAR δ activator GW610742X（100mg/kg/d）was administrated into the rats of GW group.At 3 months after procedure,the expression and distribution of tenascin-C in left ventricular free wall from each group were examined by Western blotting and immunofluorescence,respectively.Results After 3 months following procedure,there were obvious necrosis and fibrosis in left ventricular free wall from MI group.The expression of tenascin-C in MI and GW group was significantly higher than those in control and sham group（P 〈 0.01）.Moreover,tenascin-C expression in GW group was remarkably decreased compared to MI group（P 〈 0.05）.Additionally,tenascin-C expression in sham group was similar to that in control group（P 〉 0.05）.Conclusion The tenascin-C is upregulated in infarcted myocardium during the remodeling process,which can be significantly attenuated by PPAR δ activation.