1.Imaging Features of Chest CT and Prognosis of Proven Pulmonary Invasive Fungal Disease After Hematopoietic Stem Cell Transplantation
Chinese Journal of Medical Imaging 2015;(6):453-457
Purpose To assess the initial and follow-up CT findings of proven pulmonary invasive fungal disease (IFD) in patients after hematopoietic stem cell transplantation (HSCT), and to look for the signs for the prognosis. Materials and Methods A retrospective investigation of the CT features and the evolution process was carried out in 13 patients with proven pulmonary IFD diagnosed by histological examination. Results The first abnormal CT finding showed single nodule or mass in 5 cases, two nodules or masses in 2 cases, multiple nodules or masses in 2 cases, patchy consolidation in 1 case, patchy ground glass opacity (GGO) in 1 case, multiple stripes and GGOs in 1 case, and multiple consolidations in peribronchial distribution in 1 case; the presence of reversed halo sign (RHS) was found in 7 cases, not including 4 cases with aspergillosis. The median initial diameter was 32.0 mm, and the median maximum diameter was 51.5 mm. 9 of them reached partial remission after drug treatment, and 9 accepted operation resection. In the end, there were 5 cases cured, 1 keeping stable, 2 suspected recurrent on imaging, and 5 dead. In summary, it showed less than 2 nodules or masses in 7 patients (group 1) and other imaging patterns in 6 patients (group 2), the former group had smaller max diameter (t=4.397, P<0.01), the effective rate within 12 weeks, operation resection rate and final cure rate of group 1 were 85.7%, 100.0% and 71.4%, and those of group 2 were 16.7%, 33.3% and 0, respectively, with group 1 all higher than group 2 (P<0.05). Conclusion Nodule or mass is the most common CT finding of pulmonary IFD in HSCT recipients, with high incidence of reversed halo sign, less than 2 nodules or masses on the first CT imaging may be associated with better prognosis.
2.Application of shear wave elastography in the diagnosis of non-mass-like breast lesions
Zhili, WANG ; Nan, LI ; Ye, LI
Chinese Journal of Medical Ultrasound (Electronic Edition) 2014;(9):755-758
Objective To obtain the elasticity value of non-mass-like breast lesions with supersonic shear wave elastrography (SWE), in order to observe the value of quantitative elastography with SWE in differential diagnosis of non-mass-like breast lesions. Methods SWE was performed in 80 non-mass-like breast lesions. Taking pathologic results as reference, quantitative elasticity value of the lesions were performed. The diagnostic accuracy, sensitivity and speciifcity were calculated. Results In the 80 non-mass-like breast lesions, 37 lesions (46%) were malignant and 43 lesions (54%) were benign. The max and mean elasticity value of malignant lesions were (106.28±46.39) kPa and (51.02±30.06) kPa, and the max and mean elasticity value of benign lesions were (37.13±18.22) kPa and (26.44±15.62) kPa. There was statistical differences between malignant and benign lesions in max and mean elasticity values (t=15.328, 18.149, both P<0.05). Taking 61.25 kPa as the threshold of max elasticity value and 40.65 kPa as the threshold of mean elasticity value, the diagnostic accuracy, sensitivity and speciifcity were 70.53%, 66.83%, 51.22%and 68.34%, 65.81%, 50.63%, respectively. When max elasticity was combined with conventional ultrasound (US), the diagnostic accuracy, sensitivity and speciifcity were 84.17%, 92.28%and 68.39%, respectively. The diagnostic accuracy and speciifcity signiifcantly increased compared with conventional US (χ2=5.217, 9.652, both P<0.05). When mean elasticity was combined with conventional US, the diagnostic accuracy, sensitivity and speciifcity were 82.35%, 90.66%, and 63.35%, respectively. The diagnostic accuracy and speciifcity signiifcantly increased compared with conventional US (χ2=5.084, 8.686, both P<0.05). Conclusions The diagnostic accuracy and speciifcity of SWE for non-mass-like breast lesions are not high. But when SWE is combined with conventional US, the diagnostic accuracy and speciifcity increase signiifcantly, which is very helpful for the diagnostic of non-mass-like breast lesions.
3.Effect of microbubble destruction with ultrasound on wound healing in rats
Nan HAN ; Guang YANG ; Ye TAO
Chinese Journal of Ultrasonography 2011;20(2):164-167
Objective To investigate the effect of microbubble(Sono Vue) destruction with ultrasound on wound healing in rats. Methods Total 96 SD rats were accepted one rounded whole-layer skin incision on back each other and randomly divided into four groups:microbubble destruction with ultrasound(US + MB),microbubble(MB), ultrasound(US) and control group. Rats in US + MB group were injected with 0.5 ml microbubble contrast agent via tail vein,and then ultrasound irradiated for 3 minutes immediately. MB group were injected with 0.5 ml microbubble contrast agent. US group were injected with 0.5 ml physiological saline,and then ultrasound irradiated for 3 minutes immediately under the same condition. Control group were injected with 0.5 ml physiological saline. Feed each rat in single cage. On day 1,3,5,7,14 and 21 after wound creation,the excised wound tissues were analyzed by histology and VEGF expression in wounds by immunohistochemistry. Results HE staining: On day 7, wounds of US + MB group displayed the most accumulation of granulation tissue and all new capillaries were perpendicular to the wound surface, but the new capillaries of other 3 groups were disordered. Immunohistochemical examination of VEGF expression:the peak expression appeared on day 3 in US + MB group, other 3 groups were on day 5 to day 7.Conclusions US + MB treatment could improve the quality of wound healing and granulation tissues were maturated earlier than MB, US treatment and control group, which could accelerate wound healing. High temperature,high pressure and some kind of chemistry effecs induced by microbubble destruction with ultrasound can stimulate the secretion of endogenous VEGF, which may be the mechanism of promoting angiogenesis and wound healing.
4.Clinical significance of increased plasma IGF-1 in type 2 diabetic patients with malignant tumor
Yu CHEN ; Yingyu NAN ; Guo YE
Chongqing Medicine 2015;(5):628-630
Objective To test plasma insulin‐like growth factor 1(IGF‐1) level in type 2 diabetic patients with malignant tumor , and make comparison with diabetic patients and normal patients .To discuss the significance of detection of plasma IGF‐1 level in type 2 diabetes in screening early malignant tumor .Methods Plasma IGF‐1 level were determined in type 2 diabetes among malig‐nant tumor group ,type 2 diabetes ,and normal control group ,and statistical comparison was made between the three groups .Results the plasma levels of IGF‐1 of type 2 diabetes mellitus ,type 2 diabetes mellitus with malignant tumor were significantly lower than normal group(P<0 .05) .And the plasma level of IGF‐1 in type 2 diabetes mellitus with malignant tumor group was obviously high‐er than that of type 2 diabetic group(P<0 .05) .Plasma IGF‐1 ,FBG ,HbA1c and 2 HBG level are risk factors for tumor .The level of FIns is a protective factor for tumor .Conclusion Type 2 diabetes is closely related to the malignant tumor ,and the plasma levels of IGF‐1 is a risk factor for tumor .
5.Sodium nitroprusside preventing pulmonary ischemia-reperfusion injury
Chongwu XU ; Ye LI ; Nan LI
Chinese Journal of Organ Transplantation 1996;0(04):-
Objective To study the role of sodium nitroprusside in preventing pulmonary ische-mia-reperfusion injury and the possible mechanism. Methods Fourteen pigs were randomly divided into 2 groups: control group underwent controlled reperfusion with reperfusion solution (leukocyte-depleting blood modified buckberg perfusate = 4:1) for 10 min at lower pressure of 18 mm Hg and 37℃? 1℃ before removing the pulmonary artery clamp; experimental group were subjected to controlled reperfusion with reperfusion solution before removing the pulmonary artery clamp, followed by infusion of sodium nitroprusside (10?g?kg-1?min 1 for 10 min) via pulmonary artery. Blood oxygen pressure, pulmonary vascular resistance, pulmonary compliance and the changes in pulmonary oxygen-ation function were assessed 0. 5, 1 and 2 h later. After the trail, the contents of water, NO and MDA in pulmonary tissues were measured. Results In the experimental group, left lung oxygenation function and pulmonary compliance was significantly better (P
6.Postoperative observation and nursing of hip developmental dislocation in infants with Ferguson operation
Modern Clinical Nursing 2013;(7):33-34,35
Objective To explore the clinical nursing of hip developmental dislocation in infants with Ferguson operation.Method The nursing strategy was performed including observation of the surgical incision,skin care,care of cast and instructions to their parents. Result No pressure sores occurred in all the 34 cases of hip developmental dislocation.1 case had delayed allergy reaction because of use of contrast media during operation,1 cast syndrome,and 19 edema of perineum of different degrees including 6 severe edemata,which were cured using wet compress with Adlerika.Conclusion It is of great importance for the reduced incurrence of operation complications and promising operative effect to observe the conditions and treat timely problems in postoperative nursing.
7.Study on the influences of lacrimal secretion and tear film after interferon-alpha therapy in patients with chronic viral hepatitis
Xiaoli WANG ; Ning XU ; Shuyi MAI ; Nan YE
Chinese Journal of Primary Medicine and Pharmacy 2015;(14):2169-2171
Objective To analyze the influences of lacrimal secretion and tear film after interferon-alpha therapy in patients with chronic viral hepatitis.Methods Sixty patients with chronic viral hepatitis who would accept the interferon-alpha therapy,including 30 cases of hepatitis B and 30 chronic viral hepatitis C,visited our department of ophthalmology and were enrolled in this study.All cases received eye examination,including medical history,slit lamp examination,corneal fluorescein staining ( FL) ,tear film break-up time ( BUT) and schirmer test before inter-feron-alpha therapy and two months after the therapy.Results In the 60 cases of chronic viral hepatitis,there were 19 dry eye cases (31.67%) and 41 non-dry eye cases (68.33%).In dry eyes group,9 of them (47.37%) were hepatitis B patients and 10 of them were hepatitis C patients (52.63%) .There was significant difference in FL grade (t=-5.288,P<0.05),BUT (t=5.799,P<0.05),Schirmer Ⅰ(t=5.319,P<0.05) test in hepatitis B before and two months after interferon-alpha therapy.Statistical significance had been found before and two months after therapy in FL grade (t=-9.103,P<0.05),BUT (t=5.682,P<0.05),SchirmerⅠtest (t=4.592,P<0.05). The incidence of dry eye syndrome in hepatitis B patients increased from 26.70%to 53.30%two months after treated with interferon-alpha,while the incidence of dry eye syndrome in hepatitis C patients increased from 33.30% to 60.00% two months after treated with interferon-alpha.Conclusion Dry eye syndrome is one of common complica-tions in patients with chronic viral hepatitis.Interferon-alpha therapy would influence the lacrimal secretion and dam-age tear film,which increased the dry symptoms in patients.We should pay attention to the side effects of interferon-alpha therapy.
9.Recent studies on the natural products with xanthine oxidase inhibitory effect
Nan JIANG ; Xiao-lin ZHANG ; Jin-ying TIAN ; Fei YE
Acta Pharmaceutica Sinica 2021;56(5):1229-1237
Xanthine oxidase (XOD), catalyzing purine metabolism, is the key enzyme in uric acid (UA) biosynthesis, and becomes an important target for hyperuricemia treatment. The inhibition on XOD plays an important role in the treatment of hyperuricemia-related diseases, such as gout, as well as oxidative stress-induced tissue injury. Here, studies on the natural products with XOD inhibition are reviewed.
10.Smoking Associated with Aspirin and Clopidogrel Resistance in Patients with Stable Angina after Percutaneous Coronary Intervention
Ming YE ; Yan QIAO ; Chang LIU ; Yan YAN ; Nan LI
Chinese Journal of Rehabilitation Theory and Practice 2010;16(11):1057-1059
ObjectiveTo explore the association of smoking to the Aspirin and Clopidogrel antiplatelet in patients with stable angina after percutaneous coronary intervention (PCI). Methods241 smoking patients and 252 non-smoking patients underwent PCI for stable coronary artery disease, all patients had taken aspirin 100 mg/d for 7 d or more. The arachidonic acid (AA)- and adenosine diphosphate (ADP)-induced platelet aggregation were tested as they got in hospital. Then, they accepted Clopidogrel 300 mg as loading dose, continued with 75 mg/d for 3 d. The ADP-induced platelet aggregation were re-tested. ResultsThe incidence of aspirin resistance (AR) and aspirin semiresponder (ASR) was 19.1% in all the cases, and was 25.5% in smoking group, 14.3% in non-smoking group (P=0.027). Age (OR=3.79,95%CI: 1.77~8.12) and smoking (OR=1.98,95%CI: 1.18~4.43) were the independent risk factors of AR and ASR. The incidence of Clopidogrel resistance was 19.5% in all the cases, and was 13.2% in smoking group, 24.3% in non-smoking group (P=0.03). Smoking (OR=0.22,95%CI: 0.09~0.54) may reduce the risk of Clopidogrel resistance. ConclusionSmoking increased the risk of AR and ASR, but reduced the risk of Clopidogrel resistance.