Objective To discuss the value of DTI on recovery of white matter injury in periventricular leucomalacia (PVL) with cerebral palsy after surgery.Methods 15 childrens suffered from PVL and 15 age-matched normal controls with normal MRI findings and no neurological abnormalities were recruited in this study.Conventional plain MRI scans and DTI sequence of brain were preformed in all subjects.FA maps of eight selected regions,which included the corpus callosum genu,splenium of corpus callosum,bilateral anterior limb of internal capsule,bilateral posterior limb of internal capsule,bilateral optic radiation,bilateral cerebral pedunculusand superior longitudinal fasciculus were compared between two groups.Results Significant differences of FA values were observed among the three group before and after the treatment and control groups(P＜0.05).FA value of the caudate nucleus and lenticular nucleus among three group was not statistically significant difference.Further pairwise comparison,FA values of the posterior limb of internal capsul,genu of corpus callosum and splenium of corpus callosum in three groups showed statistically significant differences,there was no statistically significant difference for FA value of the genu of capsulae internae,cerebral peduncle and pons among the three group.Compared to the contralateral normal areas,FA value of the genu of capsulae internae,cerebral peduncle and pons showed statistically significant differences (P＜0.05).Conclusion Quantitative DTI may show subtle changes in the structure of white matter,which has a certain reference value of FA values of white matter in periventricular leucomalacia with cerebral palsy after surgery,and help clinicians further reasonable treatment.

Abstract: Objective To observe the etiological distribution, basic information, clinical characteristics, imaging and pathological features, treatment regimens, and prognosis of pathologically confirmed cases of pulmonary mycosis, aiming to improve the diagnosis and treatment level of pulmonary mycosis. Methods The clinical, imaging and pathological data of patients with pulmonary mycosis diagnosed by pathological biopsy in the Affiliated Hospital of Southwest Medical University from January 2014 to December 2021 were retrospectively analyzed. Results There were 77 cases of pulmonary mycosis who were diagnosed by pathology, and of these patients, 42 cases (54.54%) suffered from pulmonary aspergillosis, 34 cases (44.16%) suffered from pulmonary cryptococcosis, and 1 case (1.30%) suffered from pulmonary mucormycosis. Among the 77 patients, there were 38 male and 39 female patients, with an age range of 25 to 68 years old (mean age 51.13±10.32 years old). The common respiratory symptoms on admission included cough (33 cases, 42.86%), hemoptysis (24 cases, 31.17%), expectoration (22 cases, 28.57%) and chest pain (13 cases, 16.88%). Chest imaging features mainly included pulmonary nodules (37 cases, 48.05%), cavity (14 cases, 18.18%) and air crescent sign (10 cases, 12.99%). In this study, the main treatment measures for pulmonary mycosis were surgical resection (47 cases, 61.04%) and antifungal therapy combined with surgical resection (19 cases, 24.68%). After active treatments, most of these patients (72/77, 93.51%) discharged with better condition. Conclusions Pulmonary aspergillosis and pulmonary cryptococcosis are common pulmonary mycosis diagnosed by pathology. The main respiratory symptoms on admission are cough, expectoration and hemoptysis. Pulmonary nodules are the most common imaging features, and "air crescent sign" can be seen in some patients with pulmonary aspergillosis. Most pulmonary mycosis can have good treatment outcomes. Combining fungal histopathological characteristics and fungal special staining such as Periodic Acid-Schiff (PAS) staining and Gomori methenamine silver (GMS) staining can identify most pathogenic fungi into genera, which has important clinical significance for the timely diagnosis and treatment of pulmonary mycosis

Objective To investigate the clinical diagnostic values of quantitative DTI and MRS in AIDS-related cerebral tuberculosis. Methods 17 cases confirmed with AIDS and brain tuberculosis,16 volunteers were recruited to perform routine MRI,DTI and MRS sequences. Morphological characteristics of lesions were observed.ADC,FA,rADC,rFA,NAA/Cho,NAA/Cr and Cho/Cr of the lesions solid areas,edematous areas,normal areas and contralateral corresponding normal areas were measured and their variances in different areas were analyzed. Results Significant differences of the values were observed among the three regions of AIDS-related brain tuberculosis,the results of multiple comparisons between the three areas had statistical significances (P <0.05)excepted NAA/Cr between edematous and contralateral areas.ADC,FA,rADC,rFA,NAA/Cho,NAA/Cr on solid areas were lower than that on edematous areas,Cho/Cr on solid areas was higher than that on other two areas.The diagnostic efficiency of rFA value to distinguish solid and edematous areas was the highest by ROC analysis(P <0.05).The normal areas of the two groups had statistical significances(P <0.05)excepted Cho/Cr.Conclusion DTI is valuable to display the lesions micro-structure changes and MRS can reflect the early pathology metabolites changes of AIDS-related tuberculosis.

Objective To study miRNA expression differences in ovalbumin(OVA)- induced murine asthma models of mice and mast cells stimulated by inflammatory cytokines stimulation,and to better understand asthma deve-lopment so as to provide potential target for its prevention and treatment. Methods OVA - induced murine asthma models were validated by detecting cells in bronchoalveolar lavage fluid(BALF)and histopathology. And miRNA ex-pression differences in the lung tissues between the model group and the normal control group were detected by real -time polymerose chain reaction PCR . After tumor necrosis factor - α(TNF - α),interleukin 12(IL - 12)stimulation, miRNA expression differences in murine mast cells P815 were detected. Results The number of total cells and eosino-phil cells both increased in BALF of the model group[(12. 8 ± 2. 2)x 107 / L vs(5. 6 ± 2. 5)x 107 / L,t = 4. 760,P ﹤0. 05;(6. 6 ± 1. 9)x 107 / L vs(0. 8 ± 0. 8)x 107 / L,t = 8. 068,P ﹤ 0. 05]. In addition,histopathology showed more inflammatory cell infiltration in the model group than that in the normal control group,indicating that the models were validated. The expression of miRNA - 155 was up - regulated approximately 5. 0 - fold in the lung tissues of the model group(P ﹤ 0. 05),while miRNA - 192 showed no differences compared with the controls. After TNF - α and IL - 12 stimulated P815 mast cells,miRNA - 192 expressions in P815 were expression in P815 was up - regulated approximate-ly 1. 9 - fold and 1. 7 - fold after TNF - α and IL - 12 stimulation,respectively(P ﹤ 0. 05). Conclusions It is conclu-ded that miRNAs are differentially expressed in the presence of OVA - induced murint asthma models and mast cells stimulated by inflammatory cytokines. These differentially expressed miRNAs may regulate the function of mast cells and involved in the pathogenesis of asthma.

Objective To confirm the optimal tissue sampling location of current injury combined with the histopathological observation in specific parts of electrocution based on previous animal experiments. Methods Twenty-three human cases from the autopsy through the hand-to-foot circuit pathway were analyzed. Additional ten autopsy patients who died from traffic accidents and sudden cardiac attacks were used as the control group. All cases were extracted the soft tissues from the upper anterior wrist and medial malleolus to further observe and analysis the L/S axis ratio of the nuclei of the skeletal muscle cells (SkMCs) and artery smooth muscle cells (ASMCs). Results The age of the 23 eligible electrical deaths ranged from 19 to 59 years, including 19 cases were male and 4 cases were female. 3 cases were high-voltage 20 cases were low voltage. The occurrence rate of electric marks averaged 31.18% in all cases. The incidence of the classical arborizing pattern of fine branching was 36.4%, appearing on the pleura in 5 cases (22.7%). The nuclei of the SkMCs and ASMCs nuclei in the anterior wrist and medial malleolus within the electrical current pathway were obviously stretched, narrowed, and coalesced, presenting a nuclear polarization and arranging as line-like and moniliform patterns. The L/S axis ratio of those nuclei in the anterior wrist and medial malleolus were markedly increased as compared with the control group (p < 0.001). Through the ROC curve analysis, the critical diagnostic values of the L/S axis ratio of those nuclei were respectively 4.84 and 3.81. Conclusion These findings suggest that the soft tissues of the anterior wrist and/or the medial malleolus, as the narrowest parts of the limbs, could be used as the sites for tissue sampling and considered as necessary locations for histopathological examinations to determine the electrocution in medicolegal identification.

Objective To investigate the value of butylphthalide and sodium chloride injectio combined with compound salvia miltiorrhiza injection in the treatment of acute ischemic stroke.Methods From January 2016 to December 2017,104 patients with acute ischemic stroke in Tongji Huangzhou Hospital Affiliated to Huazhong University of Science and Technology were randomly divided into observation group (52 cases) and control group (52 cases) according to the digital table.The control group was given butylphthalide and sodium chloride injectio,and the observation group was combined with the compound salvia miltiorrhiza injection on the basis of the control group.The courses of the treatment in the two groups were 14 d.The effects of the two groups were compared.Results The total effective rate of the observation group(90.38％,47/52) was higher than that of the control group(73.08％,38/52) (x2 =5.216,P ＜ 0.05).After treatment,the daily living activity (ADL) score of the observation group was (60.49 ± 5.46) points,which was higher than (44.54 ± 4.10) points of the control group (t =16.845,P ＜ 0.05).After treatment,endothelin-1 (ET-1),C reactive protein (CRP),homocysteine (Hcy) in the observation group were (37.42 ± 5.47) ng/L,(6.51 ± 1.89)mg/L,(7.42 ± 1.27) μmol/L,respectively,which in the control group were (58.98 ± 7.89) ng/L,(12.34 ± 2.65) mg/L,(15.39 ± 2.06) μmol/L,respectively,the levels of ET-1,CRP and Hcy in the observation group were lower than those in the control group (t =16.194,12.916,23.749,all P ＜ 0.05).After treatment,the plasma viscosity,fibrinogen,whole blood viscosity at high shear and low shear whole blood viscosity of the observation group were (1.20 ± 0.23) mPa/s,(2.54 ± 0.37) g/L,(2.54 ± 0.37) mPa/s and (8.19 ± 0.68) mPa/s,respectively,which of the control group were (2.09 ± 0.32) mPa/s,(3.47 ± 0.58) g/L,(3.46 ± 0.59) mPa/s and (9.81 ± 0.82) mPa/s,respectively,the plasma viscosity,fibrinogen,whole blood viscosity at high shear and low shear whole blood viscosity of water of the observation group after treatment were lower than those of the control group(t =16.286,9.748,10.994,10.966,all P ＜ 0.05).Conclusion The effect of butylphthalide and sodium chloride injectio combined with compound salvia miltiorrhiza injection in the treatment of acute ischemic stroke is significant,which is worth studying.

Objective To investigate the change rules of the lumbar vertebral bone marrow fat fraction(FF)and T2* values at different bone mineral density(BMD)groups,and their relevances and the applications on the diagnosis of the primary osteoporosis. Methods The patients who underwent the dual energy X-ray absorptiometry(DXA)and the routine lumbar MRI scan,mDIXON-Quant scan were collected,and the BMD,T-score,FF and T2* values of L1-L4 were measured.According to the T-score,the vertebral bodies were divided into the normal group,the osteopenia group and the osteoporosis group.The differences of the FF,T2* values and BMD between each group were analyzed by one-way analysis of variance,and their correlations with BMD were analyzed by Pearson correlation,the diagnostic effects of them were evaluated by receiver operating characteristic curve(ROC curve).Results The differences of the FF ,T2 * values and BMD among the three groups were statistically significant (P < 0 .05) .The correlations of the FF and T2 * values with BMD were negative (r = - 0 .628 ,P < 0 .05 and r = - 0 .468 ,P < 0 .05 ,respectively) .The area under curve (AUC) of the FF and T2 * values were 0 .82 ± 0 .03 ,0 .79 ± 0 .03 ,respectively .Conclusion mDIXON-Quant which can accuratly quantify fat content could evaluate the lumbar vertebral bone marrow fat content ,reflect the changes of the bone quality ,provide valuable information for the diagnosis of osteoporosis ,and is helpful to predict the risks of the lumbar fragility fracture.

Objective To explore the value of diffusion tensor imaging (DTI)for the cerebral white matter recovery in children with cerebral palsy after cervical perivascular sympathectomy.Methods 30 children with hemiplegic cerebral palsy were recruited for clinical assessment and routine MRI and DTI examination before and after operation.The fractional anisotropy (FA)values for the regions including internal capsule and cerebral peduncle in the preoperative operation side and the opposite side,preoperative and postoperative were measured and compared.Gross motor function classification system (GMFCS)was used to evaluate the movement function of cerebral palsy in children.Paired sample t-test was performed to compare the differences of FA values between the preoperative operation side and the lateral,preoperative and postoperative white matter.Spearman relativity analysis was performed to assess correlation between DTI parameters in different white matter fiber bundles and GMFCS in patients.Results The FA values of white matter fiber bundle in different parts of the preoperative operation side were significantly lower in preoperative contralateral side,and the differences were statistically significant(P<0.001).Compared to preoperative,the FA values of white matter fiber bundle in different parts of the operation side were significantly increased in the six months after surgery (P<0.001),with the improvement of gross motor.Preoperative and postoperative FA value of the white matter fiber bundles in the different parts of the contralateral brain was not statistically significant(P>0.05).Clinical GMFCS in the patients were negatively correlated with the FA values (P<0.001).Moreover,the relativity between the GMFCS and the FA value of internal capsule and cerebral peduncle were both higher(r=-0.800,P<0.001;r=-0.786,P<0.001). Conclusion DTI can be used to quantitatively evaluate the postoperative recovery of white matter in children with cerebral palsy.The FA value can be used as a sensitive index for the evaluation of curative effect in children with cerebral palsy.

Nonalcoholic fatty liver disease(NAFLD)has developed into the most common chronic liver disease and can lead to liver cancer.Our laboratory previously developed a novel prescription for NAFLD,"Eight Zhes Decoction"(EZD),which has shown good curative effects in clinical practice.However,the pharmaco-dynamic material basis and mechanism have not yet been revealed.A strategy integrating lipidomics,network pharmacology and pharmacokinetics was used to reveal the active components and mecha-nisms of EZD against NAFLD.The histopathological results showed that EZD attenuated the degrees of collagen deposition and steatosis in the livers of nonalcoholic steatofibrosis model mice.Furthermore,glycerophospholipid metabolism,arachidonic acid metabolism,glycerolipid metabolism and linoleic acid metabolism with phospholipase A2 group IVA(PLA2G4A)and cytochrome P450 as the core targets and 12,13-cis-epoxyoctadecenoic acid,12(S)-hydroxyeicosatetraenoic acid,leukotriene B4,prostaglandin E2,phosphatidylcholines(PCs)and triacylglycerols(TGs)as the main lipids were found to be involved in the treatment of NAFLD by EZD.Importantly,naringenin,artemetin,canadine,and bicuculline were iden-tified as the active ingredients of EZD against NAFLD;in particular,naringenin reduces PC consumption by inhibiting the expression of PLA2G4A and thus promotes sufficient synthesis of very-low-density lipoprotein to transport excess TGs in the liver.This research provides valuable data and theoretical support for the application of EZD against NAFLD.

OBJECTIVETo investigate the value of serum IgA/C3 ratio in the diagnosis of IgA nephropathy and explore its relationship with the clinicopathological features of the patients.

METHODSSixty-six patients with IgA nephropathy, 111 with other glomerular diseases, and 40 healthy control subjects without kidney disease were tested for serum IgA and C3 levels using CRM470 adjusted standardized immune turbidimetric method, and the IgA/C3 ratio was calculated. According to Oxford and Lee's classification criteria, we analyzed the pathological grades of the renal biopsy samples from patients with IgA nephropathy. The ROC curve was used to assess the value of serum IgA and IgA/C3 ratio in predicting IgA nephropathy.

RESULTSPatients with IgA nephropathy had an elevated serum IgA/C3 ratio than those with other glomerular diseases and the control subjects, with an area under the ROC curve of 0.776. An elevated serum IgA/C3 ratio was not found to significantly correlate with the pathological grade of renal biopsy samples in patients with IgA nephropathy.

CONCLUSIONIn the absence of renal biopsy findings, serum IgA/C3 ratio can help in the diagnosis of IgA nephropathy.

Biopsy ; Case-Control Studies ; Complement C3 ; analysis ; Glomerulonephritis, IGA ; blood ; diagnosis ; Humans ; Immunoglobulin A ; blood ; Kidney ; pathology