Acoustic Stimulation ; Animals ; Corpus Striatum ; physiology ; Estrogens ; metabolism ; Estrus ; physiology ; Evoked Potentials, Auditory ; physiology ; Female ; Rats ; Rats, Sprague-Dawley

Objective To evaluate the vestibular function in patients with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). Methods Seventeen CADASIL patients were recruited in the present study and 17 healthy volunteers served as control subjects. Electronystagmogram examinations including gaze nystagmus test, spontaneous nystagmus test, saccade test, pursuit test, optokinetic nystagmus test and caloric test were performed in the subjects. Results Neither patients nor controls had gaze nystagmus or spontaneous nystagmus. There was no difference in the latency and velocity of saccade movement between patients and controls. The accuracy of the saccade movement, the accuracy in leftward saccade, was significantly lower in CADASIL group compared with controls. The pursuit movement gains was also significantly lower in CADASIL group than in control group(G_L:0.79±0.08, G_R:0.76±0.12)(t=-3.739、-2.911,P <0.05) compared with controls(G_L:0.87±0.04, G_R:0.86±0.06).The optokinetic nystagmus gains were significantly decreased in CADASIL group(G_L:0.79±0.17,G_R:0.78±0.18)(t=-2.342、-2.335,P<0.05) compared with controls(G_L:0.90±0.08,G_R:0.89±0.09). The caloric test was performed in one CADASIL patient and the result revealed an incomplete fixing inhibition. CADASIL group was further divided into normal subgroup and abnormal subgroup based on the pursuit curve. The comparison between those two subgroups demonstrated a significant correlation between the pursuit movement and the symptoms of vertigo or dizziness(P<0.05). Conclusions The central vestibular function is impaired in CADASIL patients and the abnormal vestibular function is related to the symptom of vertigo or dizziness in CADASIL patients.

Abstract? AIM: To analyze the ocular manifestations of meningiomas in the trigone of the lateral ventricle, discuss the relevant factors of visual impairment in these patients and things need attention clinically.?METHODS:Retrospectively study on the clinical data of 90 eyes in 45 patients diagnosed of trigonal meningiomas treated at Beijing Tian Tan Hospital from October 2011 to October 2015.Preoperative examinations including visual acuity, optic disc findings, visual field, size of tumors and other change in MRI were analyzed.?RESULTS: Patients'age was 12-68 years old ( mean 41.7 ±13.7 years ). Male/female ratio was 1 ∶4.6. Decreased visual acuity occurred in 18 eyes.Optic disc edema was found in 24 eyes and optic disc pale in 6 eyes. Fourty -seven eyes had visual field defect, mostly homonymous hemianopia or defect. The maximum diameter of tumors was 2.1-9.6cm (4.8±1.7cm).Range of tumor volume was 3.02-193.2cm3(48.3±47.8cm3).A positive correlation of preoperative visual field defect was found with tumor volume, tumor maximum diameter, and brain midline shift respectively. While the preoperative visual field defect was not found any correlation with age, gender, course, and the enlargement of the ventricle and the edema of the tissue around the tumors. After Mann-Whitney U test, the differences on tumor volume, the maximum diameter of tumors, and brain midline shift between the two groups were significant.? CONCLUSION: Patients with trigonal meningiomas often have ocular signs and symptoms.The major reason of visual field defect is the damage of optic radiation around the tumor.The specific position of injured optic radiation determines the type and extent of visual field defect.Both ophthalmologist and neurosurgeon should pay attention to tumors nearby posterior visual pathway. Doing neurophthalmology examinations for these patients and realizing the position between the tumor and posterior visual pathway will be helpful and necessary in surgical planning.

Ectopia Cordis ; surgery ; Humans ; Infant, Newborn ; Male

The clinical features and gene mutation characteristics of 2 children who suffered from Cornelia de Lange syndrome(CdLs)and were admitted to Affiliated Hospital of Zunyi Medical University in March 2019 were retrospectively analyzed.The 2 cases developed in infancy and presented with intractable epilepsy were accompanied with developmental retardation and special appearance.It was obvious that the 2 children had SMC1A gene mutations on X chromosome.Case 1 was frameshift mutations in the SMC1A gene at c. 2561dupA(p.K854fs), and case 2 was mutations in the SMC1A gene at c. 3441+ 1G>A(exon24)splicing mutation.These were heterozygous de novo mutations, and weren′t detected in their parents, which was not reported in literatures.In this study, 2 cases of CdLs were caused by SMC1A gene mutation, which enriched the human gene mutation database.CdLs should be considered in children with early-onset epilepsy, especially appearance and developmental retardation.Genetic testing is the most important diagnostic method.

Objective To investigate the value of ADC and FA of diffusion tensor imaging(DTI)and T2 value of T2 mapping for assessing lumbar intervertebral disc degeneration.Methods 12 cases of healthy volunteers(8 males and 4 females),28 cases of patients with chronic low back pain(15 males and 13 females,19-70 years old)were performed lumbar spine MRI,DTI and T2 mapping to obtain ADC,FA and T2 value.Intervertebral discs were classified according to the Pfirrmann grading.The correlations of different degeneration grade with ADC,FA and T2 value were analyzed.The diagnostic value of ADC,FA and T2 values of lumbar intervertebral disc degeneration were compared. Results Both ADC value and T2 value were significantly negative correlated with lumbar intervertebral disc degeneratic Pfirrminn grading(r=-0.779,r=-0.708,P<0.001).FA value were positively correlated with Pfirrminn grading(r=0.474,P<0.001), the correlation was not closely.Conclusion DTI and T2 mapping can be effectively used to quantitatively evaluate the degeneration degree of lumbar intervertebral disc,the diagnostic value of ADC was the highest,followed by T2 ,and FA was the worst.

OBJECTIVETo explore therapeutic effect and action mechanism of regulating spleen-stomach needling on diabetic nephropathy (DN).

METHODSUsing multi-centric, randomized, controlled and blind principles, 144 cases of DN were divided into an observation group and a control group according to random digital tab, 72 cases in each one. Based on regular treatment of diabetes, the regulating spleen-stomach needling was applied at Zhongwan (CV 12), Quchi (LI 11), Hegu (LI 4) and Xuehai (SP 10), etc. in the observation group while Shenshu (BL 23), Taixi (KI 3), Sanyinjiao (SP 6), Yanglingquan (GB 34), etc. were selected in the control group by reference of Acupuncture and moxibustion. The treatment was given twice a day, six days as a treatment session with interval of one day between sessions. Totally six weeks were required. Changes of clinical symptoms and signs, fast blood glucose (FBG), urinary albumin excretion rate (UAER), beta2-microglobulin (beta2-MG), monocyte chemotactic protein-1 (MCP-1), lymphocyte membrane cholesterol, propanediol (MDA), PCO, 8-hydroxydeoxy guanosine (8-OHdG), superoxide dismutase (SOD), CD3+, CD4+, CD8+, and CD4+/CD8+ were observed before and after treatment in two groups.

RESULTSAs for improving clinical symptoms and signs, total effective rate was 84.29% (59/70) in the observation group and 55.56% (40/72) in the control group, which had statistical difference between two groups (P<0.01). As for regulating glycometabolism [(6.25 +/- 0.32) mmol/L vs (8.09 +/- 0.63) mmol/L], reducing UAER [(154.43 +/- 55.14) mg/24h vs (268.91 +/- 77.65) mg/24h], restraining over-expression of MCP-1 [(137.59 +/- 36.15) pg/mL vs (166.89 +/- 42.82) pg/mL], regulating level of oxidative stress, prohibiting oxidation of protein and adjusting quantity and activity of T lymphocyte subgroup, the observation group was superior to the control group (P< 0.05, P<0.01).

CONCLUSIONThe regulating spleen-stomach needling is an effective method for treatment of DN, which cold improve glycometabolism disturbance-induced progressive kidney injury, recover glomerular filtration, reduce urinary albumin excretion rate, restrain overexpression of MCP-1, adjust level of oxidative stress, prohibit oxidation of protein, increase protectiveness of membrane, adjust quantity and activity abnormity of T lymphocyte subgroup, leading to repairing lymphocyte damage and improving immune expression to delay kidney damage.

Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Diabetic Nephropathies ; immunology ; physiopathology ; therapy ; Female ; Humans ; Male ; Middle Aged ; Spleen ; physiopathology ; Stomach ; physiopathology

To investigate the effect and possible mechanism of echinacoside-containing serum on the osteogenic differentiation in rat bone marrow mesenchymal stem cells. Rat bone marrow mesenchymal stem cells were cultivated by the whole bone marrow adherence method. The 3rd generation of cells were divided into 3 groups: the blank control group, the classic osteogenic-induced group and the 10% echinacoside-containing serum group. The expression of alkaline phosphatase and osteocalcin were detected by ELISA. The ex- pression of ZHX, protein was detected by Western blot technique. RT-PCR technique was used to detect the expression of ZHX₃mRNA. According to the result, the expressions of the alkaline phosphatase and osteocalcin in the classic osteogenic-induced group and the 10% echinacoside-containing serum group were significantly higher than that of the blank control group (P <0. 01). And expressions of the alkaline phosphatase activity and osteocalcin in the 10% echinacoside-containing serum group were significantly higher than that in the classic osteogenic-induced group (P < 0.01). Meanwhile, the classic osteogenic-induced group and the 10% echinacoside-containing serum group showed obviously higher ZHX₃ protain and mRNA expression than that of the black control group, with significant differences (P < 0.01); the 10% echinacoside-containing serum group showed obviously higher ZHX₃ protain and mRNA expression than that of the classic osteogenic-induced group, with a significant difference (P < 0.01). In conclusion, 10% echinacoside-containing serum can promote the differentiation of the bone marrow mesenchymal stem cells cultured in vitro. Its mechanism may be correlated with the increase in the ZHX₃expression.
Animals ; Cell Differentiation ; drug effects ; Cell Proliferation ; drug effects ; Cells, Cultured ; Female ; Glycosides ; blood ; pharmacology ; Homeodomain Proteins ; genetics ; metabolism ; Male ; Mesenchymal Stromal Cells ; cytology ; drug effects ; metabolism ; Osteogenesis ; drug effects ; Rats ; Rats, Sprague-Dawley ; Serum ; chemistry ; Transcription Factors ; genetics ; metabolism

Objective To investigate the changing pattern of antimicrobial resistance among gram-negative bacilli isolated from respiratory intensive care unit (RICU) for rational use of antimicrobial agents.Methods Antimicrobial susceptibility of 1 047 isolates of gram-negative bacilli from 2000 to 2004 was tested by disk diffusion method.WHONET 5.3 software was used to analyze the data.Results The most common pathogens were Pseudomonas aeruginosa (42.9%),Stenotrophomonas malto- philia (17.1%),Acinetobacter baurnannii (10.0%) and Klebsiella pneumoniae (6.5%).The susceptibility rate of P.aerug- inosa was relatively higher to ceftazidime (50%-74%),amikacin (33.3%-81.0%),piperacillin-tazobactam (30.4%-64.6%) and cefoperazone-sulbactam (33.5%-47.5%),while the susceptibility to imipenem decreased.The susceptibility rate of S. maltophilia was relatively higher to cefoperazone-sulbactam (47.2%-78.6%) and ticarcillin-clavulanic acid(28.3%-86.6%). More than 90% of Acinetobacter baumannii isolates were susceptible to imipenem.The susceptibility rates of K.pneumoniae to imipenem and cefepime were 92.9%-100% and 55.6%-80.0%,respectively.The susceptibility rate to piperacillin-tazobac- tam decreased from 58.3% to 21.7%.The prevalence of extended-spectrum?-lactamases (ESBLs) in K.pneumoniae increased from 11.1% in 2002 to 47.8% in 2004.Conclusions Most pathogens show significant resistance to the most commonly used an- tibiotics.It is very important to select antibiotics for the treatment of infections in ICU based on the results of susceptibility.