Objective:To investigate the effect of HSM on the inflammation and pulmonary fibrosis in mice with cecal ligation and puncture ( CLP) . Methods: Both 5 day and 10 day timepoint pulmonary fibrosis were induced by CLP;mice were randomly divided into three groups,including sham group (sham,n=5),model group (CLP,n=11),therapy group (HSM,n=11). HSM extract (200 mg/kg,less than human dose of 0. 27 g/kg) was orally administered to HSM group 2 hour before surgery and repeated everyday, while sham group and model group were given the same dose of normal saline. We used Q-PCR assay to analyze the expression of in-flammatory molecules ( IL-1β and TNF-α) and fibrogenic cytokines ( TGF-β, MMP9 and TIMP1 ) from lung tissues , we used FACS assay to analyze the amount of Th1 cells in PBMC and spleen sections,as well as Treg in spleen sections. Besides,lung sections were subjected to HE stain and immunohistochemical staining withα-SMA and fibronectin. Results:The amount of model group's Th1 cells in PBMC and spleen sections,as well as Treg in spleen sections were significantly lower than sham group's,whereas HSM succeeded in raising them. By day 5, the expression of inflammatory molecules IL-1β and fibrogenic cytokines (TGF-β,MMP9 and TIMP1) from CLP group's lung sections were remarkably improved,by day 10,the expression had decreased but was higher than sham group's;HSM inhibited these cytokines' expression. The expression of TNF-α of CLP group and HSM group had no significant changes. The CLP group's HE results showed obvious pulmonary inflammatory damage,by day 10,the situation had improved,whereas HSM reduced the histopathologic alterations;contrast to sham group,model group's expression of α-SMA and fibronectin was remarkably improved,while HSM group showed lower expression. Conclusion: HSM extract can suppress inflammation, balances immune system and relieves pulmonary fibrosis.

Objective:To investigate the effect of HSM on the immunoreaction and renal fibrosis in mice with cecal ligation and puncture (CLP).Methods: Renal fibrosis was induced by CLP;mice were divided into three groups,including sham group (sham,n =5),model group (CLP,n =11),therapy group (HSM,n =11).HSM extract [200 mg/(kg?d)] was orally administered to HSM group2 hour before surgery and repeated everyday throughout 10 days,while sham group and model group were given the same dose of normalsaline.FACS assay was used to analyze the amount of macrophages ,neutrophils and Treg in PBMC,as well as macrophages in peritonealfluid;we used Q-PCR assay to analyze the expression of inflammatory molecules (IL-1βand TNF-α) and fibrogenic cytokines (TGF-β,MMP9 and TIMP1) from renal sections.Besides,renal sections were subjected to HE stain and immunohistochemical staining with α-SMA and fibronectin.Results: The amount of model group′s macrophages and neutrophils in PBMC,as well as macrophages in theperitoneal fluid were significantly higher than sham group ′s,whereas HSM succeeded in lowering them;contrast to sham group,Tregs′amount of CLP group and HSM group in PBMC had no significant changes .The expression of inflammatory molecules (IL-1βand TNF-α) and fibrogenic cytokines (TGF-β,MMP9 and TIMP1) from CLP group′s renal sections were remarkably improved ,whereas HSM inhibitedthat.The CLP group′s HE results showed obvious renal inflammatory damage ,whereas HSM reduced the histopathologicalterations;contrast to sham group,model group′s expression of α-SMA and fibronectin was remarkably improved,while HSM groupshowed lower expression.Conclusion: HSM extract could regulate immunity response and had effect in improving renal fibrosis .

Objective To discuss methods of decoration reconstruction for finger defect in emergency and to observe the elinical effects.Methods Of the 41 cases of finger injuries of different degrees,15 were repaired with part of the skin flaps of the big toenails or skin flaps of the second toenalis,8 were repaired with part of the skin flaps of the big toenails,7 were reeonstructed with the second tiptoes,11 were repaired with the abdominal skin flaps of the big toes or lateral flaps of the second toes.Results All the 41 fingers sur- vived.One skin flap of the big toe was somewhat swelling and a decorating operation was performed.The 4～18 months of follow-up visitation of the rest cases revealed good function and shapes.No obvious functional ab- norality was found in the donating feet.Conclusion Various kinds of decoration reeonstruetion for finger defects are available to recover the hand shape and function as much as possible.

Objective To evaluate the clinical efficacy of percutaneous haemostat stroke-poking reduction and elastic intramedullary nailing for pediatric radial neck fractures of O'Brien types Ⅱ & Ⅲ.Methods From January 2014 to June 2016,38 children (23 boys and 15 girls) with radial neck fracture of O'Brien type u or Ⅲ were treated by percutaneous haemostat stroke-poking reduction and elastic intramedullary nailing in our department.We had 26 left and 12 right sides.Their ages ranged from 5 to 14 years,averaging 8.6 years.All fractures were fresh.According to O'Brien classification,22 cases were type Ⅱ and 16 type Ⅲ.The operation time,frequency of intraoperative C-arm fluoroscopy,frequency of percutaneous haemostat stroke-poking reduction,and union time were recorded.The elbow function was assessed one day before removal of internal implants according to the Métaizeau scoring system.Results All operations succeeded,lasting from 12 to 25 min (average,16.4 min).The frequency of intraoperative fluoroscopy ranged from 3 to 11 times (average,6.4 times);the frequency of intraoperative percutaneous reduction ranged from 1 to 4 times (average,2.3 times).The patients were followed up for 6 to 22 months (average,1 1.2 months).Postoperative X-ray films showed satisfactory alignment of the fracture ends.All fractures demonstrated clinical and radiographic evidence of complete healing after a mean time of 58 days (from 38 to 72 days).The Métaizeau scoring showed 33 excellent,4 good and one fair cases,yielding an excellent to good rate of 97.4％.Follow-ups revealed no infection,implants breakage,nonunion,fracture redisplacement,or iatrogenic radial nerve injury.Conclusions As percutaneous haemostat stroke-poking reduction can increase the probability of successful reduction at first attempt,reduce frequency of close reduction and X-ray exposure for both children and medical staff,and shorten operation time,the procedure is effective,simple,reliable and minimally invasive,leading to fewer complications.

BACKGROUNDThe level of basic fibroblast growth factor (bFGF) increases rapidly after cerebral ischemia. However, the molecular mechanisms for the effects of bFGF on cerebral microvascular endothelial cells (cMVECs) have not yet been fully elucidated. In this study, a murine cMVEC line, bEnd.3, was employed to study the effects of bFGF on cyclooxygenase (COX) expression and its downstream effects in cMVECs.

METHODSAfter treatment with bFGF, RT-PCR and Western blotting analyses were carried out to evaluate the changes in COX-2 mRNA and protein expression, respectively. MTT assays were performed to measure cell proliferation. The prostaglandin E2 (PGE2) and vascular endothelial growth factor (VEGF) concentrations in the culture medium were measured by enzyme-linked immunosorbent assay (ELISA).

RESULTSCOX-2 mRNA and protein expressions in bEnd.3 cells were induced by bFGF in time- and dose-dependent manners. The bFGF-induced COX-2 upregulation led to enhanced PGE2 production by bEnd.3 cells, and this effect was abolished by the selective COX-2 inhibitor NS-398. bFGF also increased VEGF production by bEnd.3 cells, and this effect was blocked by NS-398 and the EP1/2 (PGE2 receptors) antagonist AH6809. Furthermore, exogenous PGE2 increased VEGF production in bEnd.3 cells, and AH6809 blocked this effect.

CONCLUSIONbFGF increases VEGF production in an autocrine manner by increasing COX-2-generated PGE2 in cMVECs and subsequently stimulates MVEC proliferation and angiogenesis.

Blotting, Western ; Cell Line ; Cell Proliferation ; drug effects ; Cyclooxygenase 2 ; genetics ; metabolism ; physiology ; Dinoprostone ; metabolism ; pharmacology ; Endothelial Cells ; cytology ; drug effects ; metabolism ; Enzyme-Linked Immunosorbent Assay ; Fibroblast Growth Factor 2 ; pharmacology ; Humans ; Receptors, Prostaglandin E ; antagonists & inhibitors ; Reverse Transcriptase Polymerase Chain Reaction ; Vascular Endothelial Growth Factor A ; metabolism ; Xanthones ; pharmacology

OBJECTIVETo observe the thoracic aorta features in patients with bicuspid aortic valve (BAV) with echocardiography.

METHODSWe retrospectively analyzed the echocardiographic features and clinical manifestations in 273 patients with BAV detected from 1991-04 to 2006-02.

RESULTS(1) Aortic dimensions of the anulus, the sinuses of valsalva, the sinotubular junction, the ascending aorta at the level of its largest diameter of 31 patients with functionally normal BAV were significantly increased compared that in control subjects (P < 0.01 to P < 0.001) while the dimension of the descending aorta posterior to the left atrium was similar between the two groups (P > 0.05). (2) There is no relation between the vulval positions of BAV and aortic dimensions (P > 0.05). (3) The dimensions of the annulus as well as the sinuses of valsalva were negatively related to the aortic valve gradient, and the dimension of the annulus, the sinuses of valsalva and sinotubular junction were positively related to the degree of aortic regurgitation in 273 patients with BAV (all P < 0.05).

CONCLUSIONOur results show there is a hemodynamic independent thoracic aortic dilation in patients with functionally normal BAV. Gradient and aortic regurgitation are related to the dimension of the annulus, the sinuses of valsalva and sinotubular junction in patients with BAV.

Adult ; Aorta, Thoracic ; diagnostic imaging ; Aortic Valve ; abnormalities ; Female ; Heart Defects, Congenital ; diagnostic imaging ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Ultrasonography

Objective To investigate the safety and effectiveness of open radical prostatectomy (ORP) for locally advanced prostate cancer (LAPC).Methods From January 2012 to April 2017,132 cases underwent ORP were included.The mean age was 65.1 years old (ranged 41 to 83 years old),median PSA was 28.9 ng/ml (ranged 1.2 to 319.7 ng/ml) and mean Glcason score was 8.0(ranged 6.0 to 10.0).The number of clinical stage T3aN0,T3bN0,T4N0 and T1 ～4N1 were 92 cases(69.7％),20 cases (15.2％),8 cases (6.1％) and 12 cases (9.0％),respectively.Results The median length of hospital day,mean operative time and median blood loss were 9 d,180 min and 350 ml respectively.The intraoperative complication rate was 3.0％ (4/132),including 2 rectum injury and 2 iliac vessel injury.Pathological tumor stage revealed that ≤ pT2 N0 7 cases (5.3％),pT3a N0 61 cases (46.2％),pT3b N0 38 cases (28.8％),pT4N0 12 cases (9.1％) and pT1～4N1 14 cases (10.6％).The mean Gleason score was 8.0 (ranged 6 tol0).The numbers of patients with perineural invasion,seminal vesicle invasion and positive surgical margin were 81 cases (61.4％),49 cases (37.1％) and 41 cases (31.1％) respectively.The median follow-up duration was 24.1 (ranged 1.8 to 62.2) months.The rate of postoperative complications was 3.0％ (4/132) including 1 urethral stricture,1 wound infection,1 intestinal fistula and 1 lymphatic fistula.The rates of patients with urinary continence 1,3,6 and 12 months after surgery were 30.4％ (38/125)、63.9％ (76/119)、72.6％ (82/112)、89.1％ (90/101).The rates of adjuvant hormonal therapy and radiotherapy were 34.1％ (45/132) and 38.6％ (51/132).One patient (0.8％) died of lung cancer.The rate of biochemical recurrence(BCR) was 25.8％ (34/132).The 5-year BCRfree survival rate was 57.2％ (95％ CI 41.9％ ～ 70.6％).Conclusion The oncological control and functional recovery outcomes of ORP for locally advanced prostate cancer were reliable.

The risks related to the essential performance were analyzed with considerations on the concept of the essential performance in GB 9706.1-2020 Medical electrical equipment-Part 1:General requirements for basic safety and essential performance,and the determination process for the essential performance of medical electrical equipment was summarized.The essential performance of the example equipment was clarified with the semi-quantitative risk analysis,and the influences of the arrangement of the electromagnetic compatibility test on the determination of the essential performance were explored with the conducted immunity test and conventional test.References were provided for standard users to understand and determine the essential performance effectively.[Chinese Medical Equipment Journal,2024,45(11):72-76]

OBJECTIVETo assess the value of (99m)Tc-N-NOET ((99m)Tc-N-ethoxy-N-ethyl dithiocarbamato-nitrito) myocardial perfusion SPECT for the diagnosis of coronary artery disease.

METHODSA total of 42 patients [mean age (54 +/- 9) years, 35 men] with suspected chest pain were included in this study. 740 MBq of (99m)Tc-N-NOET was injected intravenously during bicycle exercise when the heart rate attained reached more than 85% of the expected maximum, or in cases of angina pectoris, severe arrhythmias and ischemic ST segment changes. (99m)Tc-N-NOET 740 MBq, SPECT myocardial imaging acquisitions were obtained at 15 minutes and 2 hours after (99m)Tc-N-NOET injection. Coronary angiography was performed in all patients.

RESULTSCoronary artery stenosis was detected in 26 patients and normal coronary angiography was shown in 16 patients. (99m)Tc-N-NOET myocardial perfusion imaging was abnormal in twenty-one patients out of the 26 patients with significant coronary artery stenosis (sensitivity, 81%); 14 out of 16 patients with normal angiography had a normal myocardial perfusion imaging (specificity, 88%). The positive predictive value, negative predictive value and predictive accuracy of (99m)Tc-N-NOET myocardial perfusion imaging for detection of CAD was 91%, 74% and 83%, respectively. The sensitivity of the imaging for detecting single vessel, double vessels and triple vessels disease were 60% (6/10), 86% (6/7) and 100% (9/9), respectively. There was mild (99m)Tc-N-NOET lung uptake in patients with coronary artery stenosis 15 minutes post (99m)Tc-N-NOET injection.

CONCLUSIONSPECT myocardial perfusion imaging with (99m)Tc-N-NOET supplied an important diagnostic tool for detecting coronary artery disease. Lung uptake with stress (99m)Tc-N-NOET might be related to coronary artery disease.

Adult ; Aged ; Coronary Artery Disease ; diagnostic imaging ; Exercise Test ; Female ; Humans ; Male ; Middle Aged ; Organotechnetium Compounds ; Thiocarbamates ; Tomography, Emission-Computed, Single-Photon

Objective:To determine the effect of comprehensive measures at reducing mosquito density in residential parking lot， and to provide scientific evidence for exploring a new mosquito density control mode in parking lot. Methods:During April to October in 2018， a package of measures were implemented in the observation group， including designating a full-time staff， combination of property management and mosquito eradication work， continual clean-up of breeding ground， appropriate use of pesticide， education and training of pest control knowledge， and so on. No intervention was conducted in the control group. Then we observed the effect of the above measures in reducing mosquito density. Results:After the implementation of the comprehensive measures， the average adult mosquito density and infant positive rate of ponding mosquitoes in the residential parking lot in the observation group were significantly lower than those in the control group. The mosquito positive rate in rainwater well， sewage well， drainage ditch and intercepting ditch in the observation group was significantly lower than that in the control group. There were no statistically significant difference between the observation group and the control group in the adult mosquito density and the infant positive rate of ponding mosquito in April. Conclusion:Through a package of comprehensive prevention and control measures， mosquito density in the parking lot at residential areas can be effectively reduced. However， there are still some resistances in the implementation process of measures， which need to be constantly optimized to achieve better on-site prevention and control effect.