Ebola virus disease (EVD) is a severe infectious disease caused by Ebola virus in humans and primates. The main clinical features are fever and bleeding. The disease was first identified in Zaire and Sudan in Africa in 1976. Since then, it has caused many large-scale epidemics in Africa. One of the largest and most complex Ebola outbreaks in history was the 2014-2016 outbreak in West Africa, which caused more cases and deaths than all previous outbreaks combined. As of 2022, about 35 000 EVD cases and 15 000 deaths have been reported. During the African pandemic, EVD also spread to other regions outside the African continent, such as the Americas and Europe, and became a public health issue of worldwide concern. In Africa, the re-emergence of the disease in Uganda and the Republic of Congo in 2022 has attracted much attention from the world. This article systematically summarizes the history, epidemiological distribution, route of infection, clinical symptoms, diagnosis, treatment, prevention and control of Ebola virus disease, so as to provide reference for relevant workers in China.

BACKGROUND: Magnetic resonance imaging(MRI)is considered safe for diagnosis of meniscus injury,having accuracy as high as 80% to 100%.However,it is found that there are some false positive and false negative in the clinic.OBJECTIVE: Through assessment of menisci injuries of the knee using magnetic resonance imaging and arthroscopy,to investigate MRI manifestation in different types of meniscal injuries.METHODS: A study from January 2003 to December 2008 was performed in 212 patients with knee injury undergoing preoperative MRI.Radiograph was read by physicians who had a senior professional title from radiology and orthopaedics departments,and meniscus damage and damage morphology were predicted.Arthroscopy was conducted by chief physician.Meniscus damage during surgery was considered as gold standards.The accuracy of them was compared.The statistics of accuracy of MRI diagnosis was gathered.RESULTS AND CONCLUSION: Totally 212 patients and 230 knees were included,and a total of 215 knees of meniscus injury were described by MRI diagnosis and 213 knees of meniscus injury were proven by arthroscopy.The sensitivity,specificity and accuracy of MRI diagnosis of meniscus injury respectively were 93.5%,64.7%,93.0%.It is found that the sensitivity of MRI diagnosis of bucket-handle damage is high.MRI is easy to miss diagnosis in a light meniscus posterior horn tear,and resuts are more false positive in lateral meniscus injury.It needs arthroscope operation or further surgery in some condition such as gradeⅢ type injury,meniscus displacement after injury and articular capsule separation,which indicates instable meniscus.

Objective To evaluate the value and the expression of Axl receptor tyrosine kinase (AxlTK) in renal pathology of lupus nephritis (LN) patients. Methods The expression of AxlTK were detected in 29 LN and 10 primary nephritic syndrome (NS) patients using immunohistochemistry in renal tissue. The correlations between the levels of AxlTK on glomeruli and clinical manifestations, laboratory parameters, disease activity, and renal pathology in LN patients were investigated. T test and single factor analysis of variance were used tp compare between groups, and Pearson or Spearman test was used for correlation analysis. Results AxlTK was extensively expressed on surface of mesangial cells, endothelial cells in glomeruli. There was more expression of AxlTK on mesangial cells in LN patients [(7.0 ±2.2)×10-2] than that in primary NS patients [(3.1 ±1.2) ×10-2] (t=5.382, P<0.01). The expression of AxlTK in the glomeruli of LN patients with oral ulcers is higher than that in patients without of ulcers (t=2.259, P=0.032), and it was positively correlated with the anti-nucleosome antibody (AnuA) level in patients (r=0.488, P=0.017). The expression of AxlTK on glomeruli were higher in class Ⅳ and classⅢ of LN patients than that of class Ⅴ, but there was no statistically significant difference between them (P>0.05). Conclusion The expression of Axl TK in glomerular is significantly increased in glomeruli in LN patients. The expression level of AxlTK on glomeruli is correlated with the occurrence of oral ulcers and AnuA. The level of AxlTK expression is related to pathological categories of kidney in LN patients. The results of this study suggest that AxlTK might participate in the pathogenesis of LN.

Lymphocytic hypophysitis(LH) is a rare but increasingly recognized autoimmune endocrine condition that causes partial or total hypopituitarism and is often associated with peripartum young women.We here report a 28-year-old patient who had a spontaneous and uneventful pregnancy following LH that had been treated with transspenoidal surgery and followed by anti-inflammatory agent.The woman failed to lactate and developed frontal headaches 3 months after normal delivery of her first child 3 years ago.Lab test showed the reduced concentrations of thyroxine,estradial and cortisol,suggesting hypopituitarism.Magnetic resonance imaging of the brain with contrast was performed and showed a uniformly enhancing pituitary mass with elevated optic chiasm.She underwent transsphenoidal surgery and histological examination of the resected specimen was consistent with lymphocytic hypophysitis.Anti-inflamation was started with prednisolone 40 mg per day because of a recurrence of headache that had completely recovered after surgery and regularly withdrawn to a long term maintenance dose of 10 mg per day.Physiological thyroxine replacement therapy was maintained.Her menstruation was restored without sex hormone replacement after 3 months.Three years after surgery,she got pregnant spontaneously and had normal breastfeeding after delivery.LH did not recur during this peripartum.

Animals ; Animals, Newborn ; Brain Edema ; prevention & control ; Hypoxia-Ischemia, Brain ; prevention & control ; Progesterone ; therapeutic use ; Rats ; Rats, Wistar

Objective:To screen for the pathogenesis-related genes of osteosarcoma and to assess their roles for the de- velopment of osteosareoma.Methods:Total RNA was extracted from 3 ATCC osteosarcoma cell lines and an osteoblastic cell line and was used to synthesize biotinylated cRNAs;the latter were hybridized to Affymetrix~(?)GeneChip~(?)U133A ar- rays and a gene with more than 2 folds of change was selected.Ten of the differentially expressed genes were chosen and the primers were designed and the synthesized.Then SYBR~(?)Green real-time PCR(RT-PCR)method was used to detect the expression of the 10 genes in 9 fresh osteosarcoma specimens.ABI Prism 7 000 system was used to analyze the differ- ent expression between osteosarcoma cell line and osteoblastic cell line.Results:We identified 58 up-regulated and 142 down-regulated genes in the 3 osteosareoma cell lines.Many of the genes were firstly reported to be related to the patho- genesis of osteosarcoma.These differentially expressed genes were mainly involved in energy and material metabolism,on- cogene,signal transduction gene,transcription- related genes,cell cycle-related genes,cell apoptosis-related gene,im- mune response gene,tumor suppressor genes,etc.The array results of 10 randomly selected genes were further verified by the RT-PCR in 9 fresh osteosarcoma specimens.Conclusion:Many genes are involved in the pathogenesis of osteosarcoma. Gene microarray can help to discover the genes related to the pathogenesis of osteosarcoma,which may lay a foundation for studying the molecular mechanism of osteosarcom.

Purpose:To investigate the efficacy of infusion gemcitabine via artery port and catheter system (PCS) for advanced pancreatic cancer.Methods:57 cases advanced pancreatic cancer proved by pathology were implanted Implantofix PCS.The number of ports implanted subcutaneously in inferior right abdomen and subcutanceusly in inferior chest was 48 and 9 cases respectively.The first total does in experience group was gemcitabine 3.0,5-FU 3.0,IL-2 6 million u via three times infusion.Results:The overall implanted successful rates was 100% and indwelling catheter tip dislocation rate was 0. Two PCS were pulled out in 2 fat old female patients because of bad wound healing after two months.In the experimental and control group according to the standard of clinical benefit-responces were 37 and 20 respectively.The obvious improve- ment in pain in experimental and control group was 27.2% and 4.8%,respectively.The duration of clinical benefit-re- sponces were 18 weeks in experimental groups,13 weeks in control group.The midian survival in experimental group was 6.25 months,4.41 months in control group.The 6-,9-,12-months survival rates in experimental group were 46%,24%, 18% more thans 31%,6% and 2% in control group.Conclusions:Infusion gemcitabine via artery PCS can not only relieve pain,prolong survival rate but also provides a long-term intra-arterial chemotherapy and effctive access for advanced pancre- atic cancer.

Objective To preliminarily investigate curative effect of hepatic arterial perfusion of p53 gene in the therapy of advanced hepatocellular carcinoma.Methods Tirty cases of advanced hepatocellular carcinoma were divided into experimental group and control group,p53 gene was perfused into target artery confirmed by angiography.In experimental group,10~(12)Vp of p53 gene and 20 mg OPT were employed every week as a course for 21 days and 1 to 4 courses time the cases of the study.In control group,only 20 mg OPT was used.Results The survival period was 14 to 405 days in experimental group and 18 to 167 days in control group.There was a significant difference between the two groups(P＜0.05). Conclusion p53 gene is efficacious in the therapy of advanced hepatocellular carcinoma.(J Intervent Radiol,2007,16:127-129)

Objective To evaluate the feasibility of model-based iterative reconstruction (MBIR) in low-dose chest CT (80 kV) examination in children.Methods Forty-four children who had post-operation scoliosis and received low dose chest CT scans were included.The fix tube voltage was 80 kV,fix current was 50 mA.Images were reconstructed with MBIR (observation group).The pre-operation scan were used 120 kV and 50 mA for acquisition,and images were reconstructed with filtered back-projection (FBP) mehed (control group).The subjective quality of the images was independently evaluated by two radiologists.Objective noises in the muscle and lung field were measured,the SNR,CNR were calculated,and the CTDIvol was record.Results The subjective noise score in the observation group was significantly higher than that in the control group (P＜0.05).Objective noise reduced about 40.36％,SNR increased 72.37％,CNR increased 78.69％,CTDIvol decreased by 66.52％,all of which had statistical difference between both groups (all P＜0.001).Conclusion Low-dose chest CT (80 kV) examination in children can meet the requirements of diagnosis for children.

Background and purpose: Paclitaxel is believed to be efficient in treating malignant ascites in gastric cancer. However, researches are still needed to get more evidence. The aim of this study was to discuss the efficacy and safety of the treatment of malignant ascites in gastric cancer with paclitaxel. Methods: Six cases of late phase gastric cancer patients were enrolled into the study, paclitaxel 60 mg/m~2 and 1 500-2 000 mL natural solution were administered via intraperitoneal injection, qw, for a of total 2-4 weeks. Efficacy and toxicity were determined according to WHO criteria. Results: Five (5/6) had complete response, and one (1/6) with partial response. The malignant ascites recession time was 0.5-10 months, overall survival time 2-10 months, 4 cases suffered grade Ⅰ-Ⅲabdominal pain, 4 cases grade Ⅰ leucopenia, 3 cases grade Ⅰ hair loss, 1 case grade Ⅰ liver injury (with past history of hepatitis). Conclusion: Paclitaxel is effective and relatively safe to treat malignant ascites of gastric cancer.