On the basis of the system requirement on medical oxygen supply in modern hospital, from the aspects of rigorous installation, ensuring logical course environment, following related technological standard and enhancing personnel training, the whole quality course management is put up. It is indicate that proper equipment and quality control in evary link are the quarantee of clinical service.

Objective :To sutdy the effects of Shenyanling on chronic glomerulonephritis in rabbits. Meth-ods:Rat glomerular base membrane (GBM) and Freund＇s adjuvant were injected into rabbits subcuta-neously or intracutaneously to build the Steblay nephritis model. Shenyanglin was administered. Kidneyfunction was evaluated by measuring urine protein,urea nitrogen ,creatinine ,albumin and globulin in serumas wellas the histopathological changes of kidney were observed. Results:Compared with model group,Shenyanling could dose-dependently reduce the level of the urine protein,urea nitrogen and creatinine inserum and the damage of kidney;while,the serum albumin could maintain the normal level (P＜0.05).Conclusion:Shenyanling has protective effects on chronic glomerulonephritis in rabbits.

Objective To observe the changes of the depressive behavior and amygdaloid nucleus nerve growth factor(NGF)expression in estro?gen?deprived female rats and explore the possible mechanism and targets of estradiol in depression treatment. Methods A total of 30 adult SD fe?male rats were randomly assigned to 3 groups:sham operation group(SHAM,n=10);ovariectomized group(OVX,n=10)and ovariectomized rats treated with estradiol group(OVX+E,n=10). The behavior changes were observed by tail suspension test(TST)and sucrose preference test (SPT) after 8?week estradiol treatment. Subsequently ,immunohistochemical staining detect NGF expression in amygdaloid nucleus. Results Compared with the SHAM group rats,sucrose preference ratio significantly decreased in SPT(P<0.01),immobile time prolonged in TST(P<0.01),serum estradiol level and amygdaloid NGF expression significantly decreased(all P<0.01). 8?week estradiol treatment ameliorated depres?sion?like behavior and increased serum E2 level and NGF expression in amygdaloid nucleus in OVX+E group rats when compared with the OVX group(all P<0.01). Conclusion Estradiol treatment can improve the depressive behavior of ovariectomized rats ,which may be related to the in?crease of serum estradiol level and the expression of NGF in amygdaloid nucleus.

OBJECTIVETo study the over-expression of mutant p53 protein in non-mucinous adenocarcinoma in-situ (NMAIS) and invasive adenocarcinoma, NOS of lung.

METHODSImmunohistochemical study for p53 protein was performed on 17 cases of NMAIS and 70 cases of invasive adenocarcinoma, NOS of lung. The difference in p53 over-expression between the two tumor subtypes was analyzed.

RESULTSThe over-expression of mutant p53 protein was observed in 0 case (0%) of NMAIS and 37 cases (52.9%) of invasive adenocarcinoma, NOS of lung. The difference was of statistical significance (P = 0.000).

CONCLUSIONMutant p53 protein over-expression may play a role in the progression of NMAIS to invasive adenocarcinoma, NOS.

Adenocarcinoma ; metabolism ; Adenocarcinoma in Situ ; metabolism ; Humans ; Immunohistochemistry ; Mutant Proteins ; genetics ; metabolism ; Tumor Suppressor Protein p53 ; genetics ; metabolism

Objective To investigate the association between expression of the epithelial?to?mesenchymal transition(EMT)biomarkers and the malignant progression of gastric cancer in primary tumors and metastases and their possible correlation with progression of gastric cancer(GC). Methods The EMT biomarkers including E?cadherin,β?catenin,N?cadherin,Snail and TGF?β1 were detected by immunohistochemical method for 145 cases of gastric cancer(GC),25 cases of abnormal hyperplasia,13 cases of intestinal metaplasia,42 cases of lymph node metastasis and 40 cases of normal gastric mucosa tissues. Results Positive rates of TGF?β1,Snail,E?cadherin,β?catenin and N?cadherin were 73.5%,65.5%, 14.5%,53.1%and 35.9%,respectively,in gastric cancer tissues and 100%,100%,0%,27.5%and 2.5%,respectively,in normal gastric tissues, with a significant difference between the two groups(P<0.05). The decreased expression of E?cadherin andβ?catenin and the increased expression of TGF?β1 were related to the depth of invasion of gastric cancer(P<0.05). The expression of E?cadherin was correlated positively with the expres?sion ofβ?catenin,but negatively with the expression of TGF?β1. Whereas,the expression of N?cadherin was correlated positively with the expression of TGF?β1(P<0.05). The expression of E?cadherin andβ?catenin in lymph node metastasis was significantly higher than that in gastric cancer tis?sues,while the expression of TGF?β1 was lower than in gastric cancer tissues(P<0.05). Conclusion The increased expression of TGF?β1 and Snail and the decreased expression of E?cadherin,β?catenin,and N?cadherin are involved in the processes of invasion and metastasis of GC. The transformation of E?cadherin to N?cadherin and the expression of TGF?β1 may play an important role in the development of GC. In lymph node me?tastasis,the phenomenon of mesenchymal?to?epithelial transition(MET)occurs.

Five hundred and twelve patients with psudohypertrophic muscular dystrophy underwent rapidly minimally invasive muscle biopsy with TZ semi-automatic biopsy needle under intravenous anesthesia. Three hundred and seventy nine samples were taken from quadriceps femoris muscle, while other 133 samples were taken from the deltoid muscle. The pathological diagnosis was obtained in all patients and there were no complications after biopsy. The results indicated that this method was simple, safe, effective, indolent, and minimally invasive. The obtained muscle samples can meet the request of histopathological and immunohistochemical examination and the method should be recommended for clinical applicatioa.

Objective To investigate the dementia caregivers' awareness of dementia diagnosis for patients aged≥80 years in veterans community in Beijing.Methods Patients aged 80 years and over who were diagnosed as dementia were selected from Dec.2009 to Jul.2011 in the veterans community in Beijing.A face-to-face interview and questionnaire survey were conducted in dementia caregivers individually,including basic social demographic data (gender,age,educational background),awareness rate of dementia,treatment and drug use situation and their attitude to dementia patients.Results A total of 118 caregivers were investigated individually.The caregivers in this study were mainly the spouse of the patients,and most of them were elderly people.46.6％ (55/118) of caregivers were the spouse of the patients,and 52.5％ (62/118) of caregivers were 65 years old and over.The caregivers' awareness rate of dementia was 32.3％ (38/118) when patients were diagnosed as dementia.There was no correlations of gender,age and educational background with the awareness rate of dementia diagnosis (all P＞0.05).50％ of dementia patients received the dementia treatment,and only 17.8％ (21/118) of patients got the first line drug treatment for dementia (acetylcholinesterase inhibitors and / or memantine).98.3 ％ (116 / 118) of caregivers agreed that the dementia patients should be treated kindly.Conclusions The dementia caregivers are mainly patients' spouse in veterans community and most of them are the elderly.The awareness rate of dementia diagnosis is low among the caregivers.Most patients do not take the formal treatment.The social support for the dementia caregivers should be strengthened.

Objective:To analyze the magnetic resonance imaging (MRI) features of diffuse midline gliomas with H3K27M mutation, and to quantitatively analyze the changes of apparent diffusion coefficient (ADC).Methods:The MRI images of 14 cases of diffuse midline gliomas with H3K27M mutation were retrospectively analyzed in the Affiliated Hospital of Qingdao University from April 2017 to November 2019. The location, edge, signal, peritumoral edema and enhancement characteristics of the lesions were observed, and the changes of ADC values were analyzed.Results:The tumors were located in thalamus in four cases, pons in six cases, medulla oblongata in two cases and spinal cord in two cases. In seven cases, the tumor was confined to the midline region, of which six cases had clear boundary, seven cases were located in the midline area, but infiltrated into the non midline area at the same time, and six cases had unclear boundary. Basilar artery entrapment was found in all six patients located in pons. Multiple large cystic changes were found in five cases, multiple small cysts in four cases and no cystic changes in five cases. Cystic changes were found in all seven cases of tumors involving the non midline region, of which six cases were located only in the non midline region, and only two of the seven tumors localized in the midline region had small cysts. Hemorrhage was found in four cases. Five cases showed mild heterogeneous enhancement, six cases showed moderate heterogeneous enhancement, two cases showed obvious enhancement, and one case showed no enhancement. There was no edema around the tumor in nine cases and mild edema in five cases. The average edema index was 1.13. The average ADC value of tumor parenchyma in 12 patients was (7.83±0.88)×10 -4 mm 2/s, which was 15.6% lower than that of the contralateral side [(9.28±0.69)×10 -4 mm 2/s, t=-6.336, P<0.05]. Conclusions:Diffuse midline gliomas with H3K27M mutation have a younger onset age and are more likely to occur in thalamus, brainstem and spinal cord. Most of the tumors have no peritumoral edema or mild peritumoral edema. The tumors confined to the midline region are regular in shape and clear in boundary. The masses involving the non midline area are prone to cystic necrosis. Diffuse midline gliomas with H3K27M mutation in pons are prone to basilar artery entrapment. ADC value can provide a quantitative basis for preoperative tumor grading.

AIM: To study the effect of Jiunaoning Injection on apoptosis and the changes in cytosolic calcium induced by hypoxia/hypoglycemia in SH-SY5Y human neuroblastoma cells. METHODS: The apoptosis and the changes in cytosolic calcium were induced by hypoxia and hypoglycemia .Apoptosis was measured via flow cytometry(FCM), and cytosolic calcium was determined by Fluo-3 fluorometry. RESULTS: The hypoxia/hypoglycemia induced apoptosis and increased the cytosolic calcium in SH-SY5Y cells. Jiunaoning Injection inhibited the apoptosis of the SH-SY5Y cells and decreased the concentration of cytosolic free calcium. CONCLUSION: Hypoxia/hypoglycemia induced apoptosis and increase in cytosolic free calcium in SH-SY5Y cells, which were significantly inhibited by Jiunaoning Injection.

Objective:To investigate the diagnostic value of contrast-enhanced ultrasonography (CEUS) in evaluating the severity of renal artery stenosis.Methods:Eighty six patients with suspected renal artery stenosis admitted to Shanxi Provincial People′s Hospital from January 2018 to July 2021 were enrolled in the study. All patients underwent digital subtraction angiography (DSA), Doppler ultrasonography (DUS) and CEUS examinations. With DSA results as gold standard the sensitivity, specificity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) of CEUS and DUS in the diagnosis of renal artery stenosis were analyzed. The consistency between CEUS and DSA in the diagnosis of renal artery stenosis was evaluated. The accuracy of DUS and CEUS in diagnosis of renal artery stenosis was assessed by the area under receiver operating characteristic (ROC) curve (AUC) and compared between groups.Results:Among 153 renal arteries from 86 patients examined by DSA, 101 showed the stenosis ≥30% (49 left and 52 right renal arteries), and there were 31, 45, 20 and 5 renal arteries with grade I, II, III and IV stenosis. The sensitivity and specificity of DUS in the diagnosis of renal artery stenosis were 74.3% (75/101) and 76.9% (40/52),respectively. DUS showed 21, 42, 20 and 4 renal arteries with grade Ⅰ, Ⅱ, Ⅲ and Ⅳ stenosis, respectively. The sensitivity and specificity of CEUS in the diagnosis of renal artery stenosis were 88.1% (89/101) and 86.5%(45/52), respectively. CEUS showed 26, 43, 23 and 4 renal arteries with grade Ⅰ, Ⅱ, Ⅲ and Ⅳ stenosis, respectively. There was a significant difference between DUS and DSA in grading of renal artery stenosis (χ2=4.447, P=0.03),and there was a moderate consistency between DUS and DSA ( Kappa=0.480). There was no significant difference between CEUS and DSA in grading renal artery stenosis (χ2=0.842, P=0.36) with a good consistency ( Kappa=0.730). The AUC of CEUS in diagnosis of renal artery stenosis was higher than that of DUS [0.873 (95% CI: 0.808-0.938) vs. 0.756 (95% CI:0.673-0.839); Z=4.361, P<0.01]. Conclusion:The study suggests that contrast-enhanced ultrasonography may be used as a diagnostic method for grading renal artery stenosis.