Pneumoconiosis is the most common occupational disease in China, which severely endangers people's health. Depending on the inhaled air pollutants, pneumoconiosis is classified as anthracosis, silicosis, asbestosis, etc., among which silicosis is the most common and serious. Silicosis is a systemic, poor prognostic disease characterized by diffuse fibrosis of lung tissue, which is caused by long-term exposure to dust with high levels of free silicon dioxide (SiO₂) in the occupational environment. Appropriate treatment in time is important for the disease. Unfortunately, no effective drugs have been approved to delay or even reverse pulmonary fibrosis caused by SiO₂. This review briefly classifies potent therapeutic drugs and compounds in term of mechanisms, providing the probability for clinical treatment of silicosis.

Adenocarcinoma, Mucinous ; classification ; metabolism ; pathology ; Biomarkers, Tumor ; metabolism ; Breast Neoplasms ; classification ; metabolism ; pathology ; Carcinoma, Ductal, Breast ; pathology ; Carcinoma, Intraductal, Noninfiltrating ; pathology ; Female ; Humans ; Lymphatic Metastasis ; Mucin-1 ; metabolism ; Mucin-2 ; metabolism ; Mucins ; metabolism ; WT1 Proteins ; metabolism

AIM:To establish the quality specification of Yinzhihuang Injection (extract of Herba Artemisiae scopariae,extract of Fructus Gardeniae,extract of Radix Scutellariae,extract of Flos Lonicerae Japonicae); METHODS:Extractum Artemisiae Scopariae、 Extractum Fructus gardeniae、 Extractum Flos lonicerae and Extractum Radix scutellariae were identified by TLC and were determined by HPLC. RESULTS:The average recoveries of chlorogenil、gardenoside、baicalin and p-hydroxyacetophenone were 99.8%,99.2%,100.1% and 99.9%,respectively.RSD were 0.81%,1.20%,1.90% and 0.55%,respectively.The TLC sports developed were fairly clear,and the blank test showed no interference. CONCLUSION:The method developed is simple and accurate with good reproducibility,and the method can be used for quality control of Yinzhihuang Injection.

Objective To observe the changes in cardiopulmonary exercise test (CPET) variables of children with frequent premature ventricular contraction (PVC)before and after creatine phosphate treatment,to examine the difference of CPET results between PVC patients and healthy children,and to evaluate the effect of frequent PVC on the cardiac reserve function in children.Methods One hundred and nine frequent PVC children and 98 healthy children underwent treadmill exercise test and CPET respectively,the changes of CPET variables were observed among patients before and after treatment as well as among the healthy children.CPET variables include maximal oxygen consumption/kg (VO2max/kg),maximal oxygen consumption/heart rate( VO2max/HR),HR( at different time point),anaerobic threshold ( AT),and AT/VO2 maximum prediction (AT/VO2max pred).Results Before creatine phosphate treatment,VO2max/kg,VO2max/HR and AT/VO2max in frequent PVC children were ( 22.9±7.4 ) ml/( kg·min),( 9.3 ± 1.5 ) ml,( 15.5 ±2.7 ) ml/( kg· min).After creatine phosphate treatment,VO2 max/kg,VO2 max/HR and AT/VO2 max were (26.4 ± 6.0) ml/( kg· min),( 11.4 ± 3.3 ) ml,and ( 17.4 ± 3.8 ) ml/( kg· min).These CPET variables after creatine phosphate treatment in frequent PVC children were obviously higher than those before treatment and there was a significant difference [ VO2 max/kg ( t =2.11,P ＜ 0.001 ),VO2 max/HR ( t =4.02,P ＜ 0.001 ),AT( t =10.2,P ＜ 0.001 )].Control group of 98 healthy children had negative CPET results.Conclusion Cardiac reserve function decreases in frequent PVC children.After treatment,the exercise capacity and cardiac reserve function can be improved.CPET can reflect cardiac functional reserve changes in PVC children.

Objective To use a simple bedside technique to verify the pathophysiological mechanism of pulmonary hypertension (PH) in different races. Method The Valsalva maneuver (VM) was performed in patients referred to a specialty PH clinic. The blood pressure response of patients to VM was in different fashions. The blood pressure (BP) was measured by using cuff and stethoscope. When the cuff was inflated to 15 mmHg above the systolic pressure, sound could be heard by auscultation during VM and when the cuff was deflated the sound disappeared over 3 heart beats which was considered as abnormal BP response, and less than 3 heart beats defined as normal BP response. The right heart catheterization in patients with PH as a part of the standard evaluation. Results This study included 84 patients with a mean age of (63 ± 16) years. Those with abnormal BP response to VM had higher pulmonary artery wedge pressure (PAWP) [(22.5±6.6) vs. (11.9±4.3) mmHg, P ＜0.0001] and lower pulmonary vascular resistance [(5.8 ± 4.0) vs. (8.1 ± 4.6 ) WU, P = 0.01]. Blood pressure response to VM did not correlate with mean pulmonary artery (PA) pressure [(46.2 ± 9.9) vs. (43.4 ±10.4) mmHg, P =0.20] or cardiac index (both 2.4 ± 0.6 L/min/m2). The abnormal BP response to VM had high sensitivity (89.4%), specificity (86.1%) and accuracy (86.9%) for determining PAWP＞ 15 mmHg.Conclusions BP response to Valsalva maneuver provides important information about left heart filling pressures in patients with PH.

Objective To investigate the prevalence of hyperuricemia (HUA) and its relationship with chronic kidney disease (CKD) among the population of Yunnan Plateau area.Methods Residents aged over 18 years old (n=4581) in the city of Yuxi,a community where original inhabitants were relatively concentrated,were randomly chosen for screening cross-sectional.Fasting blood and urine samples were collected to detect blood and urine parameters.Results The prevalence of HUA in the community residents was 25.91％,of which the prevalence of HUA was 34.15％ in male and 15.55％ in female.The prevalence of HUA in men was higher than that in women,and the difference was statistically significant (P ＜ 0.01).In the age of 30-49 years old,the prevalence of HUA was higher than that in other age groups (P ＜ 0.01).Multivariate logistic regression analysis showed that HUA,age,gender,hyperglycemia,low HDL levels were independently associated with CKD (P ＜ 0.05).In addition,high blood uric acid (≥404 μmol/L) group has a higher risk of CKD than low blood uric acid (≤282 μmol/L) group,when divided into four groups according to the blood uric acid level (OR=3.447,95％ CI 2.218-5.375,P＜0.01).Conclusions HUA is independently associated with CKD.The prevalence of HUA in community residents of Yunnan Plateau (Yuxi) is different from their counterparts in eastern coastal area and the data of developed regions reported by studies in past 10 years.

Objective To explore the CT features of infantile hepatic hemangioendothelioma (IHH).Methods CT imaging features of 16 IHH patients confirmed by surgical pathology and clinical diagnosis were retrospectively reviewed.Results Of 16 patients,there were single lesion in 10 cases and multiple lesions in 6 cases.All the lesions were rich in blood supply,and the arterial phase showed obviously rings enhanced.Some linear enhancement towards to the center below the annular enhancement of solitary lesions were found.There were patchy enhancement in annular enhancement center area,and the area of enhancement obvious increasing in venous phase and delayed phase in 4 cases with multiple lesions,enhancement mode was similar to single lesion in 1 case with multiple lesions.The lesions of IHH Ⅱ were small and multiple,and showed intermittent line shaped edge enhancement;some lesions below the linear enhancement showed small nodular enhancement and the area of nodular enhancement enlarged in venous phase,the range of linear enhancement was not obvious.Conclusion CT manifestations of IHH have some characteristics,and the enhancement of CT is more important in the diagnosis of this disease.

ObjectiveTo investigate the independent risk factors of 30-day mortality of nontraumatic acute chest pain in emergency department so as to get non - traumatic acute chest pain risk score,MethodsThe clinical data of 532 patients with non - traumatic acute chest pain were reviewed.The independent risk factors of 30 - day mortality were identified after analysis of medical history,symptom and sign,laboratory findings by uuivariate analysis and logistic regression.Non- traumatic acute chest pain risk score was made as per the odds ratios of these risk factors. ResultsThe average age of the patients was (55.7 + 12.7 ) years,and 45 patients ( 8.4％ ) died after 30 days.In patients with non - traumatic acute chest pain,history of hypertension (OR:4.28; 95％ CI:1.59-11.55 ),prolonged chest pain (OR:1.1; 95％ CI:1.05-1.15),dyspnea (OR:6.61; 95％CI:2.40-18.10) and tachycardia (OR:1.02; 95％CI:1.00-1.04),high leucocyte count (OR:1.18; 95％CI:1.06-1.31) and D - Dimer ( OR:1.002; 95％ CI:1.001-1.002 ) predicted 30 - day mortality independently,whereas chest pain relieved by medicine (OR:0. 15; 95％ CI:0.04-0.65),high blood oxygen saturation (SaO2) (OR:0.89; 95％CI:0.83-0.98) and normal hematocrit (OR:0.92; 95％CI:0.86-0.99) were good markers to predict optimistic prognosis.Non - traumatic acute chest pain risk score was higher in 30 - day dead group than those in survival group significantly ( P ＜ 0.01 ),and mortality was significantly different between groups with various risk stratification (P ＜ 0. 01 ).Conclusions Clinical physician can predict 30 - day mortality and evaluate prognosis in patients with acute chest pain by using non - traumatic acute chest pain risk score quickly and effectively.

Objective To analyze CT and MR features of malignant peripheral nerve sheath tumor (MPNST)of children. Methods Sixteen patients with histologically proven MPNST were retrospectively reviewed.There were 8 male and 8 female, ages from 0.3 to 11.0 years, and median age was 2.5 years. Sixteen cases were performed with CT plain scan, and eight cases with CT enhancement scans, and three with MR examination. The imaging data were analyzed by two highly experienced doctors and obtained agreements after mutual consultation. Results Among 16 cases, 3 cases were located at neck, 5 cases at waist and back,3 cases at abdominal and pelvic, 2 cases at foot, 1 case at left clavicle, 1 case at right mediastinum, 1 case at right orbit. Fifteen cases appeared as solid masses and 1 case showed a diffuse growth. CT plain scan showed 8 cases were solid-appearing masses and 7 cases were cystic-solid mass. Enhanced CT showed enhancement of solid component was moderate to marked and gradually delayed enhanced while cystic component had no any enhancement. One was located on the left side of the neck and appeared as diffuse growth. Two cases of solid mass type appeared as hypo-intensity on T1WI and hyper-intensity on T2WI, and obviously high signal intensity of cystic component on T2WI, and with significantly heterogeneous enhanced.One case with diffuse growth appeared as hypo-intensity on T1WI and slightly hyper-intensity on T2WI, and with significantly enhanced. Sixteen cases appeared as invasive growth, 11 caseswith multiple organic metastases and recurrences, and 4 cases with neurofibromatosis type I and scoliosis.Conclusion CT and MR appearances of MPNST have certain characteristic features, and can demonstrateaggressive performance and multiple organic metastases, which is helpful for definite diagnosis and treatment plan.

Objective To explore the effect of the rational-emotive-behavior therapy (REBT) on mood, cognition and activities of dailyliving (ADL) of patients with poststroke depression (PSD). Methods 80 PSD patients were divided into control group (n=40) and observationgroup (n=40). Both groups were given Prozac (20 mg/d) for 8 weeks, and the observation group received REBT (3 times per week, 20min every time) additionally. Hamilton Rating Scale for Depression (HAMD), Mini Mental State Examination (MMSE) and Barthel Index(BI) were evaluated before and after treatment. Results After 8-week treatment, the scores of HAMD in two groups reduced significantly(P<0.01), and the scores of MMSE and BI increased significantly (P<0.01). The scores of HAMD were lower in the observation group thanin the control group (P<0.05), and the scores of MMSE and BI were higher in the observation group than in the control group (P<0.05). TheBI score was related with sleeping disorder in control group (P<0.05). The BI score was both related with sleeping disorder and somatizationin the observation group (P<0.05). There was no significant difference in the extent of effectiveness on depression between two groups(P>0.05), but there was the trend that the efficacy of the observation group was better than the control group. Conclusion REBT combinedwith antidepressant drugs can better relieve the symptoms of depression and improve cognitive function and ADL of PSD patients. The improvementof somatization and sleep disorders by REBT has a relationship with the enhancement of ADL.