Low zinc (1.4-1.5 ppm) ration containing saturated fat (coconut oil) was fed to weanling rats, death occurred since second week. In third week, total death was 55%. The survivors manifested severe Zn-deficiency symptoms. When they were given Zn supplement in drinking water (100 ppm Zn), the deficient symptoms disappeared quickly and body weights increased rapidly. When coconut oil was replaced by safflower oil, the rats didn't show any Zn-deficiency symptom in 4 weeks. There was no difference in Zn contents of plasma and hair between Zn-deficient rats and the normals. Adjusting fatty acids composition of dietary fat to contain linoleic acid at 20% of total fatty acids, the rats manifested Zn-deficient symptoms after 2 weeks, and Zn contents of plasma and hair were significantly lower than that of normal rats(P

Zinc deficient rats were injected subcutaneously each day for 3 weeks with 250 ?l evening primrose oil (EPO, containing 10% Y-linolenic acid and 73% linoleic acid) or safflower oil (SFO, containing 77% linoleic acid only) and compared with zinc supplemented group (ZnS) and zinc deficient group (ZnD) without injections. At the end of the experiment, rats were killed under anaesthesia, organ weights, zinc content of kidneys, blood cholesterol and fatty acid compositions were determined. The results showed animals in EPO group had the best recoveries both in deficient symptoms and in body weights,the zinc content of kidneys was the highest, the serum cholesterol level was significantly lower than those of SFO and ZnD groups, but no difference from ZnS group. The total percentage of 22-C and above(?-6)polyunsatured fatty acids was the highest among those four groups. These results indicated that?-linolenic acid was beneficial to zinc deficient rats in growth, zinc utilization and the metabolism of essential fatty acids.

Objective To investigate the source of CD147 expressing cells in joint and its corelation with rheumatoid arthritis (RA),and to study the expression of CD147 on different cells of peripheral blood and joint fluid of RA patients and normal health controls.Methods The expression rate and intensity of CD147 on lymphocyte (CD3 +T),monocyte (CD14 + Mo) and neutrophils (N) of 10 active RA patients before and after treatment and 10 normal health controls′ peripheral blood and synovial fluid were studied by bicolor immunofluorescence flow cytometry.Results ① Compared with normal control,the expression intensity of CD147 on CD3 + T and CD14 + Mo were higher (P

Adult ; Aged ; Aged, 80 and over ; Anthracosis ; complications ; microbiology ; Anti-Bacterial Agents ; pharmacology ; Drug Resistance, Bacterial ; Humans ; Lung Neoplasms ; complications ; microbiology ; Male ; Middle Aged ; Pseudomonas Infections ; microbiology ; Pseudomonas aeruginosa ; drug effects

Objective To compare the risk of tumor invasion and metastasis under paravertebral block (PVB) combined with general anesthesia versus general anesthesia in the patients undergoing radical resection for lung cancer performed via video-assisted thoracoscope in terms of plasma concentrations of vascular endothelial growth factor (VEGF) and matrix metalloproteinase-9 (MMP-9).Methods Forty ASA physical status Ⅰ or Ⅱ patients of both sexes,aged 30-64 yr,with body mass index of 18-25 kg/m2,scheduled for elective radical resection for lung cancer performed via video-assisted thoracoscope,were randomly divided into 2 groups (n =20 each) using a random number table:general anesthesia group (group G) and PVB combined with general anesthesia (group PG).PVB of T4-7 was performed successfully with local injection of 0.375％ ropivacaine 5 ml before induction of anesthesia.Double-lumen endotracheal tube was placed after induction of anesthesia,and the patients were mechanically ventilated.Anesthesia was maintained with inhalation of sevoflurane (end-tidal concentration 1％-2％),and intravenous infusion of remifentanil 0.2-0.3 μg · kg-1 · min-1,and intermittent intravenous boluses of atracurium.Before anesthesia and at 24 h after surgery,the venous blood samples were collected for measurement of plasma concentrations of VEGF and MMP-9.Results The plasma VEGF and MMP-9 concentrations were significantly lower after surgery in group PG than in group G.Conclusion PVB combined with general anesthesia significantly decreases the risk of tumor invasion and metastasis in the patients undergoing radical lung cancer resection performed via video-assisted thoracoscope in comparison to general anesthesia.

Objective To investigate the role of heat shock protein 70 (HSP70) in liver flbrosis in infants with biliary atresia (BA) and its impact on prognosis. Methods Fourty-six (46) cases of infants with BA undergoing elective Kasai surgery were selected. In the same period, 30 cases of children with choledochal cyst and 17 cases of children with portal vein cavernous transformation were selected. The expressions of HSP70 in liver tissues were detected using immunohistochemical staining. The liver flbrosis in children with BA was detected using Sirius red-saturated picric acid staining. The expressions of HSP70 proteins in different flbrotic liver tissues were detected by using double staining. All postoperative BA infants were followed up and ended at June 30, 2016.Results The proportion of high expression of HSP 70 proteins in BA infants were signiflcantly higher than that in children with choledochal cyst and vein cavernous transformation (P<0.05). Rank correlation analysis showed that the expressions of HSP70 in liver tissues were positively correlated with the degree of liver flbrosis (r=0.861,P<0.05). 15 patients died among 46 cases of BA infants. The survival rate in BA children with mild liver flbrosis was 82.4%, which was signiflcantly higher than 58.6% in the severe group (P<0.05). The survival rate in HSP70 protein low expression group was 85.0%, while in HSP70 protein high expression group was 53.8%. Kaplan-meier survival analysis showed that the median survival time in the HSP70 protein low expression group was (34.0±2.6) months, while in the HSP70 protein high expression group was (18.3±2.2) months, the difference was statistically signiflcant (χx2=4.765,P=0.029).Conclusions The expressions of HSP70 proteins in liver tissues in infants with BA were high and were positively correlated with the degree of hepatic flbrosis. It suggested the possible involvement of HSP70 in the process of liver fibrosis. The upregulated expressions of HSP70 often indicated poor prognosis in children. It could be used as determining biomarker for prognosis.

Objective To evaluate the validity of Community Extremity Disability Assessment Schedule (CEDA) in community rehabilitation. Methods 313 patients with hemiplegia after stroke were divided into rehabilitation group and control group. The rehabilitation group received community-based rehabilitation (CBR) for 3 months, and was assessed with Community Extremity Disability Assessment Schedule before and 1 month, 2 months and 3 months after rehabilitation respectively. And it was compared with Fugl-Meyer Assessment (FMA). The control group received the same evaluation only. Results The scores of CEDA and FMA improved more in the rehabilitation group than in the control group 2 months after rehabilitation (P<0.01). The score of CEDA positively correlated with the FMA (r=0.643, P<0.01). Conclusion CEDA can be used to evaluate the efficacy of community rehabilitation.

AIMTo explore the characteristics of the urinary excretion in the elderly patients and to offer some advice for the prevention and treatment of hyponatremia in the elderly patients.

METHODS42 inpatients aged over 80 were divided into tow groups according to their creatinine clearance rate (CCR). Meanwhile, 24 patients aged 45-59 and 31 patients aged 60-79 were chosen as the control groups. All patients were examined 24h urinary electrolytes and CCR.

RESULTS(1) The CCR in the elderly group was lower than in the middle-aged and old group and the 24 h urinary sodium excretion was accordingly diminished than the two groups. 24 h urinary sodium excretion in CCR abnormal group was also diminished than in CCR normal group. The urinary sodium excretion was not linearly correlate with the CCR in middle-aged group and old group but was linearly correlate in the elderly group. (2) The elderly patients' capability of holding blood sodium and excreting potassium was declined in the CCR normal group. But the urinary excretion of sodium, potassium and phosphonium were all diminished in CCR abnormal group. (3) All patients' sodium intake was higher than the criteria made by China Hypertension Association.

CONCLUSIONTheir urinary sodium excretion is linearly correlate with CCR. Urinary sodium excretion is increased when the elderly patients' renal function is relative normal but when the renal function is severely damaged, urinary sodium excretion is diminished.

Age Factors ; Aged ; Aged, 80 and over ; Calcium ; urine ; Coronary Disease ; urine ; Creatinine ; metabolism ; Humans ; Male ; Middle Aged ; Potassium ; urine ; Sodium ; urine

Objective To observe the clinical efficacy of modified Huanglian Wendan Decoction for treatment of tic disorder (TD) children with syndrome of wind stirring due to phlegm-heat; To detect its effects on peripheral-blood miR-429 expression. Methods Eighty cases of TD children were randomly divided into treatment group and control group,with 40 cases in each group.In the treatment group,children were treated with modified Huanglian Wendan Decoction, one dosage a day, twice a day, orally. In the control group, TD children were treated with haloperidol, 0.03 mg/(kg?d), orally, according to the symptom to adjust dose, and the maximum amount did not exceed 0.08 mg/(kg?d). 30 d was a treatment course for both groups. The treatment lasted for three courses. Before and after 3 months of clinical observation, the severity of disease was evaluated by TCM syndrome and Yale Global Tic Severity Scale (YGTSS) score. Clinical efficacy and TCM syndrome efficacy were evaluated; the level of miR-429 in peripheral blood was detected; the adverse reactions were observed. Results The total effective rate of clinical efficacy was 82.5% (33/40) in treatment group and 80.0% (32/40) in the control group, without statistical significance (P>0.05); The total effective rate of TCM syndrome efficacy was 92.5% (37/40) in treatment group and 75.0% (30/40) in the control group, with statistical significance (P<0.05). Compared with before treatment, the YGTSS score and TCM syndrome score significantly decreased after treatment (P<0.01), and the TCM syndrome score in the treatment group was much lower than the control group after treatment (P<0.05). Compared with before treatment, miR-429 level in both groups increased obviously after treatment (P<0.01), and the miR-429 level in the treatment group was much higher than the control group after treatment (P<0.05). There were mild constipation (1 cases), diarrhea (2 cases), and anorexia (2 cases) in the treatment group, and obvious lethargy (3 cases) and dizziness (3 cases) in the control group. Conclusion Modified Huanglian Wendan Decoction shows obvious effects for treating TD, and can up-regulate miR-429 of peripheral-blood.

OBJECTIVETo investigate the protective effect and action mechanism of petroleum ether extracts from Saussurea involucrate on brain tissues of hypoxia rats under constant pressure and closed conditions.

METHODThe PESI dosage-dependent experiment for hypoxia rats was conducted under constant pressure and closed conditions by intraperitoneally injecting 125, 250, 500 mg x kg(-1) to finalize that the optimum dosage is the high dose of PESI. Afterwards, 90 Wistar rats were randomly divided into the hypoxic model group, the acetazolamide 250 mg x kg(-1) group and the PESI high dose group. Each group was further divided into three subgroups according to different hypoxia times, with 10 rats in each subgroup. Under the same hypoxia and administration conditions, the rats were sacrificed after 0, 3, 6 h respectively. Their brain samples were collected for common pathological observation and immunohistochemical staining of HIF-1alpha. Real-time RT-PCR was used to detect HIF-1alpha, EPO, HO-1 and Caspase-3 gene expressions. And the Western blot assay was adopted to detect HIF-1alpha protein expression.

RESULTThe brain tissues of the hypoxia model group were severely damaged with the increase in the hypoxia time. The acetazolamide group and the PESI high does group were damaged in a much lower degree. According to the gene expression and the Western blot assay, high dose of PESI could inhibit HIF-1alpha expression. According to the pure gene expression test, high dose of PESI could increase EPO and HO-1 mRNA expressions, but inhibit Caspase-3 mRNA expression.

CONCLUSIONPESI's protective mechanism for brain tissues of hypoxia rats under constant pressure and closed conditions may be related to its effects in inhibiting HIF-1alpha expression, increasing EPO expression and resisting cell apoptosis.

Alkanes ; chemistry ; Animals ; Brain ; cytology ; drug effects ; metabolism ; Caspase 3 ; genetics ; Cell Hypoxia ; drug effects ; Cytoprotection ; drug effects ; Dose-Response Relationship, Drug ; Drugs, Chinese Herbal ; pharmacology ; Erythropoietin ; genetics ; Gene Expression Regulation, Enzymologic ; drug effects ; Heme Oxygenase-1 ; genetics ; Hypoxia-Inducible Factor 1, alpha Subunit ; genetics ; metabolism ; Male ; Rats ; Rats, Wistar ; Saussurea ; chemistry