To determine the relationship between Barrett's esophagus (BE) and features of gastroesophageal acid reflux, 24 h esophageal pH monitoring was performed in 90 patients. The patients were divided into 3 groups: 31 subjects with BE, 21 with mild esophagitis and 38 with severe esophagitis. The following parameters were evaluated: the percentage time of pH < 4; the number of reflux episodes over 5 min; the duration of longest episodes and DeMeester score over total period and the auterior three parameters in erect and supine position. All these parameters in BE were significantly different from those with mild esophagitis (P < 0.01) and not significantly different from those with severe esophagitis (P > 0.05). During supine position all the above parameters in BE were significantly different from those with reflux esophagitis (P < 0.05). It is concluded that the quantity of acid reflux is not an important factor in development of BE in gastroesophageal reflux (GER), and the acid reflux in supine position might be important in development of BE in GER.
Barrett Esophagus/etiology ; Barrett Esophagus/*physiopathology ; Esophagitis, Peptic/etiology ; Gastroesophageal Reflux/*complications ; Hydrogen-Ion Concentration ; Supine Position

AIM To investigate the protective effect of GSTT on myocardial injury induced by ischemia reperfusion. METHODS The content of lactic dehydrogenase(LDH),creatine kinase(CK),methylenedioxyamphetamine(MDA),superoxide dismutase(SOD),tumor necrosis factor alpha(TNF ?) and interleukine 6(IL 6) were determined in medium after reperfusion by simulating model of ischemia reperfusion; The content of nitric oxide(NO) was determined in medium by TNF ? injury myocardium,and mitochondrial activity was determined by MTT after TNF ? stimulated. RESULTS Compared with the model control,in the GSTT, the content of LDH,CK,MDA,TNF ? and IL 6 in medium decreased and activity of SOD increased after reperfusoin,the level of NO in medium decreased and OD 490 increased after TNF ? injuried. CONCLUSION It is suggested that GSTT can mitigate injury of ischemia reperfusion on myocardium, and has a direct protective effect on injuried myocardium.

Objective: To investigate the effect of vitamin B12 on the growth and hemopoiesis of broilers. Methods: The Arbor Acres broilers were fed the experimental diets with different doses of vitamin B12 0.00, 0.008, 0.016, 0.024 mg/kg for 3 weeks. The body weight gain and hematologic indices of the broilers were measured. Results: Vitamin B12 deficiency in the diet could depress the body weight gain and feed conversion ratio of the broilers, decrease the amount of red blood cell and hemoglobin, enlarge the volume of red blood cell, increase the content of each cell hemoglobin, reduce platelet in blood. While 0.008 mg/kg vitamin B12 was added in the experimental diets, the body weight gain and feed conversion ratio of the broilers increased markedly. Furthermore, when 0.016mg/kg vitamin B12 was added to the diet, the number of the red blood cell and the content of hemoglobin of the broilers increased significantly, and the shape and volume of the red blood cell became ordinary. There were significants interrelations between BWG,RBC,Hb,PCV,PLT,MCV,MCH of the broilers and the addition of vitamin B12 in the diet. Conclusion: Vitamin B12 deficiency could result in the megaloblastic animia. 0.02-0.03 mg vitamin B12 per kilo diet was required to maintain the growth and normal hemopoiesis of the broilers.

Objective To observe bone formation of compound of autologous periosteum cells plus calcium alginate gelatin in animal body and investigate the best mixing ratio of the two components.Methods A total of 96 healthy adult New Zealand rabbits were randomly divided into six groups (Groups A,B,C,D,E and control group).The excised bilateral periostea from rabbits in each experimental group were all made into 0.4 ml cell suspensions.The compounds were prepared by blending 0.4 ml calcium alginate gelatin with 1,1/4,1/16,1/64 and 1/256 of the periosteum cell suspension respectively,and then were applied to autologous right radial defect area.Gross observation,X-ray examination and histological study were carried out at 2,4,8,12 weeks postoperatively.Levels of serum alkaline phosphatase and serum calcium were determined as well.Results The compounds containing periosteum cell suspension with cell counts of 1/4 or 1/16 and calcium alginate gelatin reached the best osteogenesis.Conclusion Compound of autologous periosteum cell suspension-calcium alginate gelatin induces obvious bone formation and is worthy of clinical application,for it has advantages of satisfactory bone defect repair and easy operation.

To analyze the causes of failure in conventional treatment to refractory gastroesophageal reflux diseases (GERD) patients, 16 refractory GERD patients (group R) and 16 cases of GERD primarily diagnosed (group P) were studied. Endoscopy, pathologic examination and 14C urea breath test were conducted in every patient. 24 h ambulatory pH and bilirubin monitoring were performed with Digitrapper MK III and Synetics Bilitec 2000. It was found that esophagitis in group R was more severe than in group P. The rate of Helicobacter pylori infection in group R was significantly lower than in group P. Fraction time pH below 4.00 was not longer while the bile reflux represented by fraction time abs above 0.14 was greater for patients in the group R as compared with those in the group P. The mixed refluxes and pure bile refluxes between the two groups had significant difference. The reflux episodes in the group R mainly occurred during nights. These results indicated that severe esophagitis, especially Barrett's esophagus with complications makes it difficult to control GERD. Severe duodenogastroesophageal refluxes (DGER) are often accompanied by refractory GERD. Mixed refluxes aggravate the esophageal injuries. Pure bile refluxes and nocturnal refluxes may cause failure of administration of proton pump inhibitors (PPI) in the morning. Helicobacter pylori infection and acid refluxes may not be the direct cause of refractoriness. Individual refractory GERD patient without abnormal results on pH or bile reflux recently should be diagnosed again.
Barrett Esophagus/complications ; Esophagitis/complications ; Esophagitis/microbiology ; Gastroesophageal Reflux/complications ; Gastroesophageal Reflux/diagnosis ; Gastroesophageal Reflux/*therapy ; Helicobacter Infections/complications ; Helicobacter pylori ; Treatment Failure

Objective To study the level of mindfulness,mental toughness and clinical practice of nursing internship, to analyze the relationship between the level of mindfulness and mental toughness and clinical practice, to further improve the level and ability of nursing internship in clinical practice. Methods A total of 298 nursing internship in our hospital from January 2014 to December 2016 were included in the study. The level of mindfulness, resilience and clinical practice ability of all nursing internship were examined. The level of mindfulness, resilience and clinical practice ability of nursing students were analyzed. The relationship between mindfulness level, resilience and clinical practice ability of nursing students in our hospital were observed. Results The score of male nursing internshipin observation and description dimensions were 3.36±0.45, 3.52±0.43, significantly higher than female nursing internship 3.02 ± 0.41, 3.19 ± 0.38, the difference was statistically significant (t=6.815, 7.028, P<0.05). The scores of male nursing internship in individual ability, social ability, planning style, social resources and family cohesion dimensions were 4.82±0.36, 5.09±0.46, 4.06±0.42, 4.73±0.35, 5.04± 0.39, which were higher than those of female nursing students 4.51 ± 0.34, 4.89 ± 0.42, 3.91 ± 0.38, 4.58 ±0.31, 4.88 ± 0.32, the difference was statistically significant (t=3.268-6.847, P<0.05). Male nursing internship in the use of theoretical knowledge, communication and clinical skills scores were 3.35 ± 0.38, 3.76±0.45, 3.59±0.46, lower than that of female nursing internship 3.56±0.39, 3.54±0.42, 3.42±0.41, the difference was statistically significant (t=4.678, 2.851, 2.243, P<0.05). The level of mindfulness and the level of resilience of the male and female nursing internship were positively correlated with the ability of clinical practice (r=0.823- 0.884,P<0.05). Conclusions The level of mindfulness and mental toughness is the influencing factors of nursing internship in clinical practice ability, through the cultivation of the level of mindfulness and mental toughness for clinical nursing internship, we can effectively improve the clinical practice ability of nursing students,improve the level of nursing and ensure medical safety.

To determine the relationship between Barrett's esophagus (BE) and features of gastroesophageal acid reflux, 24 h esophageal pH monitoring was performed in 90 patients. The patients were divided into 3 groups: 31 subjects with BE, 21 with mild esophagitis and 38 with severe esophagitis. The following parameters were evaluated: the percentage time of pH < 4; the number of reflux episodes over 5 min; the duration of longest episodes and DeMeester score over total period and the auterior three parameters in erect and supine position. All these parameters in BE were significantly different from those with mild esophagitis (P < 0.01) and not significantly different from those with severe esophagitis (P > 0.05). During supine position all the above parameters in BE were significantly different from those with reflux esophagitis (P < 0.05). It is concluded that the quantity of acid reflux is not an important factor in development of BE in gastroesophageal reflux (GER), and the acid reflux in supine position might be important in development of BE in GER.
Adult ; Barrett Esophagus ; etiology ; physiopathology ; Esophagitis, Peptic ; etiology ; Female ; Gastroesophageal Reflux ; complications ; Humans ; Hydrogen-Ion Concentration ; Male ; Middle Aged ; Supine Position

Multiple myeloma is one type of hematological malignancy, characterized by the proliferation and accumulation of monoclonal plasma cells in bone marrow. Bone marrow microenvironment plays a key supporting role in the proliferation and survival of myeloma cells, where a large number of immune cells exist but are functionally suppressed. Based on the studies of myeloma immune microenvironment in recent years, we summarize the recent advances and existing problems in the treatment of multiple myeloma and put forward some considerations and suggestions, to provide references for researchers in this field.

To analyze the causes of failure in conventional treatment to refractory gastroesophageal reflux diseases (GERD) patients, 16 refractory GERD patients (group R) and 16 cases of GERD primarily diagnosed (group P) were studied. Endoscopy, pathologic examination and 14C urea breath test were conducted in every patient. 24 h ambulatory pH and bilirubin monitoring were performed with Digitrapper MK III and Synetics Bilitec 2000. It was found that esophagitis in group R was more severe than in group P. The rate of Helicobacter pylori infection in group R was significantly lower than in group P. Fraction time pH below 4.00 was not longer while the bile reflux represented by fraction time abs above 0.14 was greater for patients in the group R as compared with those in the group P. The mixed refluxes and pure bile refluxes between the two groups had significant difference. The reflux episodes in the group R mainly occurred during nights. These results indicated that severe esophagitis, especially Barrett's esophagus with complications makes it difficult to control GERD. Severe duodenogastroesophageal refluxes (DGER) are often accompanied by refractory GERD. Mixed refluxes aggravate the esophageal injuries. Pure bile refluxes and nocturnal refluxes may cause failure of administration of proton pump inhibitors (PPI) in the morning. Helicobacter pylori infection and acid refluxes may not be the direct cause of refractoriness. Individual refractory GERD patient without abnormal results on pH or bile reflux recently should be diagnosed again.
Adult ; Barrett Esophagus ; complications ; Esophagitis ; complications ; microbiology ; Female ; Gastroesophageal Reflux ; complications ; diagnosis ; therapy ; Helicobacter Infections ; complications ; Helicobacter pylori ; Humans ; Male ; Middle Aged ; Treatment Failure

Objective:To investigate the mechanism of crush syndrome (CS) induced by crush injury on myocardial cells in rats.Methods:Thirty two male Sprague Dawley (SD) rats were randomly divided into control group, CS-0 group, CS-12 group and CS-24 group with 8 rats in each group. CS model was made by self-made extruder and perfused with 4% paraformaldehyde for 0, 12 and 24 h. The morphological changes of myocardial tissue were observed by hematoxylin staining. The apoptosis of cardiomyocytes was detected by terminal dexynucleotide transferase-mediated nick end labeling (TUNEL). The levels and activities of malondialdehyde (MDA), superoxide dismutase (SOD), lactose dehydrogenase (LDH), interleukin-6 (IL-6), interleukin-1 β (IL-1 β), tumor necrosis factor-α (TNF- α) in myocardial homogenate were detected by enzyme-linked immunosorbent assay (ELISA). The expressions of Caspase-3, Bax, Bcl-2 and necrosis factor-κB (NF-κ B) were detected by Western blot.Results:Compared with the control group, the myocardial tissue of CS model group had different degrees of morphological damage; compared with the control group, the apoptosis rate, Caspase-3 and Bax protein expression levels of CS-0 group, CS-12 group and CS-24 group were significantly increased ( P<0.05), and the expression level of Bcl-2 protein was significantly decreased ( P<0.05); compared with the control group, the levels of MDA, LDH, IL-6, IL-1β, TNF-α and p65 protein phosphorylation in the myocardial homogenate of CS-0 group, CS-12 group and CS-24 group were significantly increased ( P<0.05), and SOD activity was significantly decreased ( P<0.05). Conclusions:CS may inhibit oxidative stress and induce inflammatory reaction by activating NF-κ B pathway, thus damaging myocardial cells in rats.