OBJECTIVE To evaluate the effect of neuromedin U(NMU) in lymph node metastasis of laryngocarcinoma and provide a new biomarker of metastasis. METHODS Samples of 120 cases of laryngocarcinoma were collected from the Otolaryngology Department of the First Affiliated Hospital of Jinzhou Medical University from 2013 to 2015. Patients were divided into two groups: metastasis group and non-metastasis group. Immunohistochemistry was performed to analyze the NMU expression in primary tumor and lymph node. An independent tissue microassay was used to analyze the relationship between NMU expression and T, N stages. RESULTS Expression of NMU in metastasis group was higher than that in non-metastasis group, NMU was positively correlated with N stages, but not with T stages. CONCLUSION The expression of NMU is higher in metastasis tissue of laryngocarcinoma, It could be used as a biomarker of lymph node metastasis of laryngocarcinoma.

Objectives To investigate the characteristics of changes in serum metabolic profile before and after resection of carcinoma tissues to establish a disease distinguishing model,to analyze the changing trend of characteristic metabolites,and to determine the molecular mechanism and potential clinical value of characteristic metabolic markers for HBV-related liver cancer.Methods Ultraperformance liquid chromatography-mass spectrometry (UPLC-MS) was used to analyze the serum metabolites of 15 patients with hepatocellular carcinoma (HCC) before and after partial hepatectomy and on 25 healthy volunteers.The pattern recognition method and nonparametric test analyzes were used to analyze the data and to identify the specific metabolites and their changes after resection of carcinoma tissues.Results We established the principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) disease distinguishing model for HCC patients before and after operation as against the healthy volunteers.To distinguish between the liver cancer group and the normal control group,27 characteristic metabolites were selected from the patients before and after resection of carcinoma tissues.Eight moved towards the normal control after resection of carcinoma tissues.This indicated that liver carcinoma was an important impacting factor for these metabolites.Finally,7 metabolites were identified,and these metabolites had high diagnostic value as shown on ROC curves.Conclusions Through serum metabolic profiling of patients before and after resection of carcinoma tissues,a high correlation between metabolism and hepatocellular carcinoma was found.Researches on endogenous metabolites and pathways in liver diseases will provide a better understanding of the molecular mechanisms and provide further directions for clinical diagnosis and treatment.

Objective To study the changes of serum markers of hepatic fibrosis in patients with fatty liver,and to provide clinical diagnosis and treatment for patients with fatty liver.Methods Three hundred and sixty-one patients with fatty liver were divided into light,medium and heavy three degrees according to the intrahepatic echo and structure.Serum markers of hepatic fibrosis-hyaluronic acid (HA),laminin (LN),procollagen Ⅲ (PC Ⅲ) and type Ⅳ collagen (C-Ⅳ) were examined by enzyme linked immunosorbent assay (ELISA),and the ordinal logistic regression model was used to analyze,regarding the grade of fatty liver as dependent variable.Results The levels of serum fibrosis markers HA,LN,PC Ⅲ and C-Ⅳ in patients with mild,moderate and severe fatty liver were (94.53 ± 16.21),(101.38 ± 20.42),(127.34 ± 26.54) μg/L,(107.25±22.63),(117.38±24.84),(136.62±32.27) μg/L,(110.27±23.15),(121.55±27.36),(138.62± 30.62) μg/L,(72.61 ± 15.46),(82.06 ± 18.28),(92.96 ± 21.35) μg/L respectively,there was significant difference in serum fibrosis markers among mild,moderate and severe fatty liver patients (F =675.719,398.771,303.960,840.570;P＜0.05),while the markers of patients with severe fatty liver were higher than normal.The ordinal logistic regression model showed that the serum fibrosis indexes of HA,LN,PC Ⅲ and C-Ⅳ had significant effects on the grading of fatty liver(P＜0.05),whose odds ratio were 1.322,1.229,1.899,3.935,that was the higher the HA,LN,PC Ⅲ,C-Ⅳ,the more severe fatty liver.Conclusion There were liver fibrosis trend in patients with severe fatty liver.Detection of serum markers of hepatic fibrosis can be used as an important basis for monitoring and diagnosis of fatty liver disease.

Objective To analyze the influencing factors of severe pneumonia in children with mycoplasma pneumonia.Methods A total of 307 children with mycoplasma pneumonia hospitalized in Shanxi Children′s Hospital from March 2021 to February 2022 were se-lected as the study subjects and divided into severe group(200 cases)and non-severe group(107 cases).The differences of the clinical data between the two groups were compared,and a nomogram prediction model was established,and the model was internally validated.Results The severe group had more patients aged≤3 and<6 years,≥6 and≤10 years and autumn and winter(P<0.05).There were significant differences in the course of disease,peak body temperature,abnormal electrocardiogram findings,three concave signs positive,perioral cyanosis,extrapulmonary manifestations,and involvement of other systems between the two groups(P<0.05).There were significant differences between the two groups in 15 indicators including epstein-barr virus infection,antibody titer levels,and C-reactive protein among the laboratory test indicators(P<0.05).The Logistic regression analysis showed that long disease duration and el-evated platelet count,lactate dehydrogenase,and Th cell levels were positively correlated with the occurrence of severe pneumonia,and elevated NK cell levels were negatively correlated with the occurrence of severe pneumonia(P<0.05).The nomogram results showed that the probability of severe pneumonia was 92.8%,the calibration curve was basically consistent with the ideal curve,the area under the re-ceiver operating characteristic curve was0.819,and the decision curve showed a high net benefit value when the threshold probability was 4%-89%.Conclusion The nomogram model is helpful for early detection of severe pneumonia in children with mycoplasma pneumoni-a,and has important significance for preventing the development of severe pneumonia.

OBJECTIVETo assess the value of genetic testing for Fragile X syndrome (FXS).

METHODSA domestically made diagnostic kit based Tri-primer-PCR method was used to detect mutations of the FMR1 gene among 6 pedigrees with unexplained intellectual disability. The results were verified by methylation PCR and Southern blotting.

RESULTSPedigrees 1 and 6 were positive for the screening. In pedigree 1, a full-mutation allele with methylation was identified in the proband and his mother, which was passed on to the fetus. In pedigree 6, the proband was mosaic for a full-mutation allele and a pre-mutation allele. His sister was asymptomatic with a full-mutation. His mother carried pre-mutation allele, while his father and sister's baby were normal. The number of CGG repeats of the pedigrees 2 to 5 were in the normal range.

CONCLUSIONGenetic testing can provide an effective way to prevent FXS caused by FMR1 mutations and enable prenatal diagnosis for families with a high risk for the disease.

A wireless wearable sleep monitoring system based on EEG signals is developed.The collected EEG signals are wirelessly sent to the PC or mobile phone Bluetooth APP for real-time display.The system is small in size,low in power consumption,and light in weight.It can be worn on the patient's forehead and is comfortable.It can be applied to home sleep monitoring scenarios and has good application value.The key performance indicators of the system are compared with the industry-related medical device measurement standards,and the measurement results are better than the special standards.

Objective To investigate the relationship of procollagen?lysine 2?oxoglutarate 5?dioxygenase 2 ( PLOD2 ) expression and the clinical characteristics of osteosarcoma, and explore the potential mechanism of tumour metastasis promoted by PLOD2. Methods The expression of PLOD2 in osteosarcoma tissues and paired adjacent tissues were detected by immunohistochemistry and qRT?PCR. Correlation of PLOD2 expression in osteosarcoma with the clinical pathologic features was analyzed by Chi square test and Kaplan?Meier analysis.Fibrillar collagen formation and collagen deposition in the tumor tissues were detected by picrosirius red staining. We transfected U?2OS cells with LV?vector, LV?over／PLOD2, sh?NC and sh?PLOD2. The expression of PLOD2 was detected by qRT?PCR. The impact of POLD2 on U?2OS cell invasion was determined by wound?healing assay and Transwell migration assay. The expressions of PLOD2／FAK／JAK2?STAT3 signal pathway related proteins were detected by western blotting. Results The high expression level of PLOD2 in osteosarcoma tissues was 72.5%, significantly higher than 0% in paired adjacent noncancerous tissues ( P＜0.01), the expression of PLOD2 was positively correlated with lymph node metastasis, pulmonary metastasis and poor outcome (P＜0.01). The same results were also observed in qRT?PCR assay. The median survival time of patients with high expression of PLOD2 protein was 13 months, significantly shorter than 32 months of patients with low expression of PLOD2 ( P＜0.05). The result of picrosirius red staining showed that the percentage of collagen fiber deposition in the osteosarcoma tissue with high level of PLOD2 was (74.43+9.63)%, significantly higher than ( 9.67± 1.28)% in tissue with low expression of PLOD2 (P＜0.001).The result of wound?healing and Transwell migration assay showed that over?expression of PLOD2 markedly promoted the invasion, however, knockdown of PLOD2 suppressed the invasion of U?2OS cells ( both P＜0.01).The result of western blotting showed that over?expression of PLOD2 significantly increased the expression levels of p?FAK, p?JAK2, p?STAT3, but knockdown PLOD2 decreased the levels of p?FAK, p?JAK2, p?STAT3 in U?2OS cells. Conclusions Up?regulation of PLOD2 in osteosarcoma is correlated with lymphatic and distant metastasis. PLOD2 promotes invasion and metastasis of osteosarcoma might through FAK／JAK2?STAT3 signal pathway.

Objective To investigate the relationship of procollagen?lysine 2?oxoglutarate 5?dioxygenase 2 ( PLOD2 ) expression and the clinical characteristics of osteosarcoma, and explore the potential mechanism of tumour metastasis promoted by PLOD2. Methods The expression of PLOD2 in osteosarcoma tissues and paired adjacent tissues were detected by immunohistochemistry and qRT?PCR. Correlation of PLOD2 expression in osteosarcoma with the clinical pathologic features was analyzed by Chi square test and Kaplan?Meier analysis.Fibrillar collagen formation and collagen deposition in the tumor tissues were detected by picrosirius red staining. We transfected U?2OS cells with LV?vector, LV?over／PLOD2, sh?NC and sh?PLOD2. The expression of PLOD2 was detected by qRT?PCR. The impact of POLD2 on U?2OS cell invasion was determined by wound?healing assay and Transwell migration assay. The expressions of PLOD2／FAK／JAK2?STAT3 signal pathway related proteins were detected by western blotting. Results The high expression level of PLOD2 in osteosarcoma tissues was 72.5%, significantly higher than 0% in paired adjacent noncancerous tissues ( P＜0.01), the expression of PLOD2 was positively correlated with lymph node metastasis, pulmonary metastasis and poor outcome (P＜0.01). The same results were also observed in qRT?PCR assay. The median survival time of patients with high expression of PLOD2 protein was 13 months, significantly shorter than 32 months of patients with low expression of PLOD2 ( P＜0.05). The result of picrosirius red staining showed that the percentage of collagen fiber deposition in the osteosarcoma tissue with high level of PLOD2 was (74.43+9.63)%, significantly higher than ( 9.67± 1.28)% in tissue with low expression of PLOD2 (P＜0.001).The result of wound?healing and Transwell migration assay showed that over?expression of PLOD2 markedly promoted the invasion, however, knockdown of PLOD2 suppressed the invasion of U?2OS cells ( both P＜0.01).The result of western blotting showed that over?expression of PLOD2 significantly increased the expression levels of p?FAK, p?JAK2, p?STAT3, but knockdown PLOD2 decreased the levels of p?FAK, p?JAK2, p?STAT3 in U?2OS cells. Conclusions Up?regulation of PLOD2 in osteosarcoma is correlated with lymphatic and distant metastasis. PLOD2 promotes invasion and metastasis of osteosarcoma might through FAK／JAK2?STAT3 signal pathway.

Objective To observe the protective effect of Tangshenqing Formula II ( TSQF) on the renal function of mice with type 2 diabetes mellitus ( DM) . Methods KK-Ay mice, a spontaneous DM mod-el, were fed with fat-enriched diet for three weeks. Based on their serum glucose ( Glu) and body weight ( BW) , the mice were divided into model group, valsartan group, high, middle, and low dose of TSQF ( high-, mid-, low- dose ) group ( n =6 each ) and were treated for consecutive 12 weeks. And six C57BL/6J mice were included into control group. At the timepoint of Week 0, 4, 8, 12, Glu, urine al-bumin ( Alb) , urine creatine ( Cr) , Alb/Cr( ACR) and 24-h urine protein ( pr/24 h) were detected. At the end of Week 12, all the mice were sacrificed and their serum samples were collected. And the serum levels of TG, TC, Scr, BUN and β2-MG were measured. Results Compared with the control group,
the levels of pr/24 h, ACR, Scr, TG and TC in the model group significantly increased ( P<0. 05 or P<0. 01), While BUN,β2-MG and ratio of kidney weight to body weight showed no statistcal differences (P>0. 05). Compared to the model group, the levels of Scr, TG and ACR in valsartan group and three TSQF groups significantly decreased (P<0. 05 or P<0. 01), and those of TC, Glu, and pr/24 h de-creased at different degree. Conclusion TSQF could reduce the serum levels of Glu, Scr and TG of kk-Ay mice, and alleviate the kidney injuries to reduce the progression of diabetic nephropathy.

Objective To investigate the relative mechanism of Maimendong Tang (Ophiopogon Decoction) in amelioration of lung function and endoplasmic reticulum stress (ERS) in rats with bleomycin-induced pulmonary fibrosis.Methods Male healthy SD rats were randomly divided into normal group, model group, Maimendong Tang group 1 and Maimendong Tang group 2.The rat model of pulmonary fibrosis was established by bleomycin pulverization via tracheal intubation.On the 14 t h d after modeling, Maimendong Tang was intragastrically given to Maimendong Tang group1 and Maimendong Tang group 2 twice a day for 20 d continuously.The general conditions were observed, and pathological changes of lung tissue were observed after HE and Masson staining.The forced vital capacity (FVC) , 0.4 second rate (FEV0.4/FVC) , mass FVC, inspiratory resistance (Ri) , expiratory resistance (Re) and dynamic pulmonary compliance (Cydn) were detected by using spirometer.The expressions of glucose regulated protein 78 (GRP78) and C/EBP homologous protein (CHOP) protein in lung tissue were analyzed by using Western blotting assay and immunohistochemistry staining technique.Results Compared with normal group, FVC, FVC/lung mass and Cydn decreased, and 0.4 second rate increased in model group.Compared with model group, FVC increased and 0.4 second rate decreased and Cydn increased in Maimendong Tang group 1 and Maimendong Tang group 2, and mass FVC increased in Maimendong Tang group 2.Pathological sections showed that there were chronic inflammatory cell infiltration in consolidation zone of lung tissue and massive collagen deposition, GRP78 and CHOP with high expressions were mainly positioned in vesicular type Ⅱ alveolar epithelial cells (AECⅡs).The inflammation was relieved, collagen deposition was decreased, protein expressions of GRP78 and CHOP were reduced and in Maimendong Tang group 2.Conclusion Maimendong Tang can significantly improve lung function and reduce lung interstitial collagen deposition, which may be related to regulation of protein expressions of GRP78 and CHOP in AECⅡs in consolidation zone of lung tissue, relief of ERS, and recovery of normal AECⅡs function.