Objective To explore the clinical effect of high-frequency repetitive transcranial magnetic stimulation (rTMS) on post-stroke depression (PSD). Methods Sixty PSD patients were randomly divided into an rTMS group and a control group, each of 30 patients. In addition to conventional treatment, rTMS group members were given high-frequency rTMS treatment for 10 d while the control group were given sham stimulation. In order to test the efficacy, the two groups were compared using the Hamilton depression rating scale (HAMD) before and after 10 and 30 days treatment. Results After 10 days of treatment the rTMS group had significantly lower HAMD scores than before treatment, and average HAMD scores differed significantly between the rTMS group and the controls, with the former performing significantly better. There was no obvious difference in HAMD scores after 30 days of treatment between the two groups. Conclusions High-frequency rTMS is a safe and effective treatment for PSD.

Objective: Our purpose was to study the concentration of soluble tumor necrosis factor receptor-Ⅰ(sTNFR-Ⅰ) in the serum of patients with acute tuberculosis. Methods: The levels of soluble TNFR-Ⅰ in serum were measured in 11 patients with acute tuberculosis. Concentration of sTNFR-Ⅰ were measured by using enzyme-linked immunological binding assay. Results: In patients with acute tuberculosis, especially severe tuberculosis, serum levels of sTNFR-Ⅰ increased significantly (P<0.01), compared with those of control. After antituberculosis therapy, serum levels of sTNFR-Ⅰin patients with acute tuberculosis decreased by various degrees. Conclusion: Measurements of sTNFR-Ⅰ in serum of patients with acute tuberculosis could be an important index in the judgement of the outcome of the disease.

BACKGROUND:Methylene blue can hinder abnormal pain conduction via the sensory nerve, and its mechanism is to block bradykinin-induced hyperalgesia and eliminate pain caused by local tissue inflammation.
OBJECTIVE:To observe the influence of methylene blue solution on the lumbar spinal cord and spinal ganglia function of rats, and to investigate whether methylene blue is safe for treating discogenic low back pain.
METHODTotal y 120 Wistar rats were randomly divided into five groupthree experimental groups, a saline control group and a blank control group, n=24 in each group. Lumbar segmental dura was exposed in rats. In the three experimental groups, 0.2, 1, and 2 mL methylene blue were injected epidural y, respectively. The saline control group was subjected to the epidural injection of 1 mL saline. In the blank control group, there was no treatment. Six rats from each group were selected randomly and perfused at 30 minutes, 2 hours, 24 hours, 72 hours after injection, respectively. Then, the corresponding segments of the spinal cord and ganglions were removed. Hematoxylin eosin staining was used for comparing histological and structural changes under light microscope.
RESULTS AND CONCLUSION:Hematoxylin-eosin staining showed that at 30 minutes, 2 hours, 24 hours and 72 hours after injection of methylene blue, the spinal dorsal side exhibited the structural integrity, clear boundaries between the white matter and gray matter, dense nerve fibers in the white matter, and round or oval nuclei of glial cells among fibers;dense nerve fibers in the posterior horn of gray matter;light-colored neuronal nuclei with prominent nucleoli;a bundle of nerve fibers among cellpopulations. There was no significant change in tissue structure of lumbar spinal cord and spinal ganglia between the experimental groups and the saline control group or between the experimental groups and the blank control group. Thus, the epidural injection of 1%methylene blue has no significant effect on the spinal cord and spinal nerve structures.

Child ; Child, Preschool ; Endoscopy, Digestive System ; Female ; Follow-Up Studies ; Humans ; Infant ; Male ; Peptic Ulcer

To observe the effect of oxidized low density lipoprotein (OxLDL) on arterial endothelial cells apoptosis in vivo, we established a model in which Sprague-Dawley rats were given intraperitoneal and intravenous injection of unmodified LDL (8 mg/kg every day) via the tail vein. Seven days after the injection, the aortic endothelial cells specimens were prepared by an en face preparation of rat aorta. The apoptotic cells were identified and counted by in situ nick and labelling (TUNEL) method and light microscopy. The numbers of the apoptotic cells were 12.52 +/- 4.71/field in the intraperitoneal injection control group, 11.41 +/- 2.94/field in the intravenous injection control group, 22.98 +/- 8.01/field in the intraperitoneal injection LDL group and 103.8 +/- 11.5/field in the intravenous injection LDL group, respectively. The difference was significant between injection LDL group and control (P < 0.01), and the difference was also significant between two LDL injection groups (P < 0.01). These findings suggest that injection of LDL can induce apoptosis in arterial endothelial cells and the effect is especially significant with intravenous injection LDL. After injection, oxidative modification of LDL may occur in local arteries and causes injury to the endothelial cells.
Aorta ; Apoptosis/*drug effects ; Endothelium, Vascular/*pathology ; In Situ Nick-End Labeling ; Injections, Intraperitoneal ; Injections, Intravenous ; Lipoproteins, LDL/*metabolism ; Lipoproteins, LDL/*pharmacology ; Oxidation-Reduction ; Random Allocation ; Rats, Sprague-Dawley

The infrastructure of Liberia has been destroyed due to the prolonged civil war.In this situation,it's critical for the Medical Contingent to have a good self-communication to carry out medical support for the United Nations Mission in Liberia.The communication instruments,their management and maintenance are introduced in this paper.The communication support for large-scale movement is emphasized on.The methods for using effectively the restricted Internet connection are discussed in detail.To cope with the problems of poor communication between the Medical Contingent and homeland,an Internet connection system is put forward which is based on VSAT(very small aperture terminal)hardware platform and subscription of international Internet connection.The system is believed to be reliable,economical,flexible and convenient.

To explore the significance of the application of standardized special staining technique in pathologic diagnosis of pulmonary fungal infectious diseases.Methods Final pathologic diagnosis of 104 cases pulmonary fungus infection disease in Beijing Chaoyang hospital from September 2011 to March 2016 were selected;HE staining only,HE staining combined with the traditional manual special staining method PAS and hexamine silver,and HE staining combined with automatic special staining PAS and hexamine-silver were used and compared.The two kinds of special staining technology were compared;the microscopic observation,analysis results (all the first staining results,not including the results of complex staining),the results on the basis of final pathologic diagnosis were also compared with the clinical preliminary diagnosis.Results Lung fungal infectious disease diagnosis rate and fungal classification rate,from low to high order consistence,showed that for the primary clinical diagnosis (29.8％ and 19.2％),HE staining (32.7％ and 32.7％),HE staining combined with traditional manual special staining method PAS and hexamine silver (90.4％ and 87.5％),and HE staining combined with automatic special staining PAS and hexamine-silver (98.1％ and 94.2％).The four methods were statistically significant on two aspects (P ＜ 0.01,P ＜ 0.01);the fourth method was significantly different from the first two (P ＜ 0.01,P ＜ 0.01).The fourth method was significantly different from the third kind of diagnosis rate (P ＜ 0.05),typing rate was no significant difference (P ＞ 0.05).But automatic special dyeing method of PAS and hexamine silver steps were more simple,with standardized chemical reagents,no artificial and environmental factors,short time-consuming,and less number of dropping-off and restaining of the section.Conclusion HE staining and its combination with automatic special staining of PAS and hexamine silver are much more standardized,and help to improve the diagnosis of pulmonary fungal infectious diseases and fungal classification rate.

BACKGROUND: It is of great significance to understand the effects of different components of blood pressure on the occurrence of cerebrovascular diseases and administer proper decompression treatments in various situations.OBJECTIVE: To study the relationship of increased pulse pressure with the occurrence and severity degree of cerebral infarction by analyzing the data of pulse pressure recorded in hospitalized patients with acute cerebral infarction.DESIGN: Case-control analysis.SETTING: First Affiliated Hospital of Harbin Medical University.PARTICIPANTS: A total of 300 patients hospitalized at the First Affiliated Hospital of Harbin Medical University between June 2002 and January 2003 for ischemic cerebral infarction were enrolled, including 196males and 104 females aged (57.9±11.9) years. Another 199 persons who came to the same hospital for physical examination at the same period were set as normal group, including 110 males and 89 females aged (55.9±12.4)years.METHODS: ① Measurement of blood pressure: Systolic pressure and diastolic pressure of each person were recorded with mercury sphygmomanometer at the site of brachial artery of the right upper extremity and pulse pressure was calculated. ② Evaluation of neurological impairment:Upon hospital admission, each patient with ischemic cerebral infarction was evaluated with the stroke scale made by the National Institute of Health (NIHSS), in which a higher score means more severe infarction.MAIN OUTCOME MEASURES: ① Comparison of blood pressure parameters of subjects in the two groups. ② Distribution of different pulse pressure levels in the two groups. ③ Comparison of pulse pressure of subjects of different age in the two groups. ④ Results of non-parameters tests of neural function loss in cerebral infarction patients with different pulse pressure levels.RESULTS: ① Mean systolic pressure: It was significantly higher in the case group than in control group [(152±22), (133±19) mm Hg, t' =10.494,P ＜ 0.01]. Mean diastolic pressure: It was higher in the case group than in control group [(93±14), (81±11) mm Hg, t' = 10.129, P ＜ 0.01]. Meanpulse pressure: It was higher in the case group than in control group [(59.61±11.86), (51.93±14.10) mm Hg, t' =5.612, P ＜ 0.05]. Pairwise corre lation analysis showed that Pearson correlation coefficient between pulse pressure and systolic pressure was 0.789 (P ＜ 0.01); Pearson correlation.coefficient between pulse pressure and diastolic pressure was 0.169 (P ＜ 0.01). Therefore, there was a close correlation between pulse pressure and systolic pressure. ② Pulse pressure was distributed between 60 mm Hg and 69 mm Hg in most subjects in the case group, which accounted for 27.7%.It was 40-49 mm Hg in control group, which accounted for 35.7%. It indicated that the incidence rate was high when the pulse pressure was over 60 mm Hg in cerebral infarction. ③ Pulse pressure increased with age.The level of pulse pressure in 40-69 years case group was higher than that in 40-69 control group [(54±16), (45±9)mm Hg, t=4.86, P=0.000]. ④ Patients with cerebral infarction of different levels of pulse pressure were given non-parameter tests of neurological impairment evaluation. The resuits of Kruskal-Wallis test were χ2=4.779, P=0.572 ＞ 0.05; results of median test were as x2=8.365, P=0.213 ＞ 0.05. The results of the two non-parameter tests suggested that there was no significant differences in hospitalization evaluation, that is, although the pulse pressure increased obviously in cerebral infarction, the degree of increase had no correlation with the severity of neurological impairment.CONCLUSION: The increase of pulse pressure is related to the occurrence of cerebral infarction and is also an important factor for evaluating cerebral infarction. However, pulse pressure change is not related to the severity of cerebral infarction.

Objective To compare difference of nt and aa of H gene between the measles virus strains(MVW) recently circulating and used vacci ne strain (Chang-47) in Liaoning province of China, and to study biological an d immunological characteristic and genotype of MVW and Chang-47. Method s The analysis of 1～1 800 nt and 1～600 aa abou t H gene of MVW and Chang- 47 vaccine strain was performed. Neutralization test was performed against MVW and Chang-47 vaccine strain in the sera of measles cases and children vaccinated after 30 days. Results The genoty pe of the MVW was different from genotypes previously described in other c ountries and vaccine strain (Chang-47) used in Liaoning province. It also showe d that 18～28 aa were distinct from aa of other genotype, but most of the importa nt biological and immunological sites were not changing except the site at aa 24 0 .Neutralization antibody titer GMT against MVW and Chang-47 strains were no sig n ificantly different in the sera of measles cases and the children vaccinated af te r 30 days, but antibody titers GMT of the measles cases sera against MVW or Cha ng-47 strain were much higher than children vaccinated. Conclusions There was nt variation in the MVW. Most of biological and immunological a a sites of the MVW and Chang -47 strains were the same and were not changing. C hang -47 vaccine may also protect from infection of the MVW.