OBJECTIVE: The design and development of split memory alloy sternum bone plate are discussed, and the effect of split memory alloy sternum bone plate internal fixation in the treatment of sternal fractures are analysed. METHODS: The structure of the product is designed according to the anatomy and physiological characteristics of human bones, and the cross section shape of the product is designed according to the cross section shape of human bones. Internal fixation is effective in the treatment of sternal fracture. RESULTS: The split memory alloy sternal plate was successfully designed and developed, and all the patients with sternal fractures treated by internal fixation were clinically healed, the hospitalization and fracture healing time were significantly shortened, and no obvious complications occurred. CONCLUSIONS The application of split memory alloy sternal plate internal fixation in the treatment of sternal fracture has the advantages of small trauma, simple operation, safety, reliable fixation, good histocompatibility and less complications, and is conducive to promoting fracture healing and respiratory function improvement.
Alloys ; Bone Plates ; Fracture Fixation, Internal ; Fracture Healing ; Humans ; Sternum/surgery*

Objective:To explore the effects of sandplay combined with sensory integration therapy on cognitive function in children with attention deficit hyperactivity disorder (ADHD).Methods:60 children with ADHD diagnosed in Baoji Maternal and Child Health Hospital from June 2018 to June 2019 were randomly divided into study group and control group.The children in the control group were treated by sandplay, while the patients in the study group were treated by sandplay combined with sensory integration.Results:There was no significant difference in Parent Symptom Questionnaire (PSQ) score, Combined Raven Test (CRT) results and attention test results between the two groups before treatment ( P>0.05), and there was no significant difference in PSQ score of control group after treatment ( P>0.05); The behavioral problems (0.92±0.23), anxiety (0.51±0.26), impulse/hyperactivity (1.06±0.31) and hyperactivity index (0.88±0.14) in the study group were significantly lower than those in the control group [behavioral problems (1.12±0.21), anxiety (0.79±0.45), impulse/hyperactivity (1.42±0.34) and hyperactivity index (1.16±0.17) ( P<0.05)]. There was no significant difference in the scores of mental disorders and learning problems between the two groups [(0.42±0.20), (1.28±0.44) vs (0.52±0.28), (1.37±0.48)] ( P>0.05). The results of CRT in the study group were (6.6±0.3, 7.3±0.2, 9.1±0.1, 5.5±0.2, 2.7±0.1, 117.3±4.4), which were higher than those in the control group (6.2± 0.1, 6.7±0.1, 8.7±0.1, 5.0±0.1, 2.2±0.1, 110.0±3.8) ( P<0.05). The slip time (52.4±0.1), error number (55.9±0.2) and missed report number (60.2 ±0.1) of the study group were significantly lower than those of the control group [slip time (56.1±0.2), error number (60.3±0.1) and missed report number (70.8±0.3)] ( P<0.05). Conclusions:Combination of sandplay and sensory integration can significantly improve the cognitive and behavioral abilities of children with attention deficit hyperactivity disorder, and improve the balance function of children, which is conducive to clinical application.

OBJECTIVE:To investigate clinical efficacy and safety of oral loratadine combined with physiological seawater na-sal irrigation in the treatment of intermittent allergic rhinitis. METHODS:Totally 300 patients with intermittent allergic rhinitis were chosen from the Second Hospital of Hebei Medical University during Jan. 2013-Jun. 2015,and then divided into group A,B,C ac-cording to lottery method,with 100 cases in each group. Group A was given Loratadine tablets 10 mg,po,qd. Group B received nasal irrigation with physiological seawater nasal spray,every morning and evening. Group C was given oral loratadine combined with physiological seawater nasal irrigation. Treatment courses of 3 groups lasted for 28 d. Clinical efficiencies of 3 groups were compared as well as symptom and sign scores,respiration function indexes and inflammatory factor levels before and after treat-ment,and the clinical recurrences were followed up for 12 months. RESULTS:The total response rates of group A,B,C were 80.00%,78.00%,96.00%,respectively,and that of group C was significantly higher than that of group A and B,with statistical significance(P<0.05). Before treatment,there was no statistical significance in symptom and sign scores,respiration function in-dexes and inflammatory factor levels among 3 groups(P>0.05). After treatment,symptom and sign scores,the rates of PEF diur-nal variation,TNF-α,INF-γ and IL-4 in 3 groups were significantly lower than before treatment,and the levels of PEF and IL-12 were significantly higher than before treatment. Above indexes of group C were significantly better than those of group A and B, with statistical significance (P<0.05). Clinical recurrence rates of group A,B,C were 21.00%,23.00%,6.00%,and group C was significantly lower than the group A and B,with statistical significance (P<0.05). There was no statistical significance in above indexes between group A and group B (P>0.05). CONCLUSIONS:Oral loratadine combined with physiological seawater nasal irrigation in treatment of intermittent allergic rhinitis can efficiently relieve the nasal symptoms and signs,improve expiratoryfunction,reduce the inflammatory response levels and be help-ful to reduce the long-term recurrence risk.

OBJECTIVE: To explore the effects of pure adenoidectomy,adenoidectomy with partial tonsillectomy,and adenoidectomy with total tonsillectomy on humoral and cellular immunity of children with OSAHS. METHOD: The children with OSAHS diagnosed by polysomnography were divided into pure adenoidectomy group(group A),adenoidectomy with partial tonsillectomy group(group B), and adenoidectomy with total tonsillectomy(group C), and there were 50 cases in each group. The serum IgG, IgA, IgM level and peripheral blood T cell subgroup per-centage were detected at 6 months preoperatively and postoperatively. Tonsil grading and polysomnography wereconducted, recording symptoms improvement situation at postoperative 6 months. RESULT: There was no statisticallysignificant difference compared with preoperative(P>0. 05) in humoral immunity and cellular immunity index ofpostoperative 6 months. There was no significani difference(P>C. 05) in curative effect among three groups in the 6th month post-operatively. CONCLUSION All of these three surgical procedures had no obvious effect on humoral orcellular immune function in children, and could effectively treat children OSAHS.
Adenoidectomy ; Antibodies ; blood ; Child ; Humans ; Immunity, Cellular ; Immunity, Humoral ; Palatine Tonsil ; pathology ; Polysomnography ; Postoperative Period ; Sleep Apnea, Obstructive ; immunology ; surgery ; T-Lymphocyte Subsets ; cytology ; Tonsillectomy

OBJECTIVE: To investigate the effects of different pattens of intermittent hypoxia on the activity and apoptosis of primary cultured rat embryonic cortical neurons, and to evaluate the role of intermittent hypoxia in the mechanism of obstructive sleep syndrom induced cognitive function loss. METHOD: The embryonic cerebral cortical neurons were cultured in vitro and were identified by immunofluorescence. Cultured neurons were randomly divided into intermittent hypoxia group, intermittent normal oxygen group, persistent hypoxia group and the control group, and intermittent hypoxia group was divided into five subgroups according to different frequency and time-bound. Neurons were exposed in different modes of hypoxia. MTT colorimetry was used to detect the viability of the neurons, and DAPI colorated measurement was used to calculate the percentages of neuron apoptosis. RESULT: There were significantly different effects between all subgroups of intermittent hypoxia and the continued hypoxia group on neuronal activity and apoptosis (P < 0.01); Intermittent hypoxia groups with different frequency and time had no difference in neuronal activity and apoptosis (P > 0.05). CONCLUSION The effect of intermittent hypoxia was more serious than that of continued hypoxia on neuronal activity and apoptosis; The impact of intermittent hypoxia on neuronal activity and apoptosis may be an important factor in obstructive sleep apnea related cognitive impairment.
Animals ; Apoptosis ; Cell Hypoxia ; Cells, Cultured ; Cognition Disorders ; Neurons ; cytology ; Oxygen ; Rats ; Sleep Apnea, Obstructive

Objective To compare the clinical efficacy and safety of pegylated interferon α-2a (Peg IFN α-2a) or adefovir dipivoxil(ADV) monotherapy and their combination therapy in HBeAg positive chronic hepatitis B (CHB) patients. Methods An open randomized controlled multicenter clinical trial was performed. One hundred and twenty cases with CHB were divided into 3 groups: Peg IFN α-2a monotherapy (group A), ADV monotherapy (group B) and Peg IFN α-2a plus ADV combination therapy (group C). The virological response (VR), serological response (HBeAg, HBsAg clearance and seroconversion), biochemical response (BR) and sustained response (SR) were tested at week 24 and 48 of therapy and week 48 of follow-up after end of treatment (EOT) for'evaluation of therapeutic effects, safety and drug resistance. The efficacy was compared using X2 test. Results At week 48 of treatment, the VR (HBV DNA ≤500 copy/mL) rates were 36. 8%(14/38), 37. 5%(15/40) and 62. 9% (22/35), respectively in groups A, B and C; that in group C was higher than those in groups A and B (X2 = 4. 933, 4. 801, respectively; both P < 0. 05); HBeAg seroconversion rates in three groups were 44. 7% (17/38), 17. 5% (7/40) and 51. 4% (18/35), respectively. At week 48 of follow-up,SR rates in three groups were 34. 2%(13/38), 15. 0%(6/40) and 48. 6% (17/35), respectively; those in groups C and A were higher than that in group B (X2 = 9. 894,P<0. 01;X2 =3. 903, P<0. 05, respectively). Conclusions VRs at week 24 and 48 of Peg IFN α-2a plus ADV combination therapy are better than Peg IFN α-2a or ADV monotherapy. SRs at week 48 of follow-up after Peg IFN α-2a monotherapy and combination therapy are both better than ADV monotherapy.

Objective To detect the proteins levels of RhoA and CDC42 in bone marrow mononucleated cells (BMMC) of patients with primary acute leukemia,and further determine the role of abnormal interactions between hematopoietic progenitor and bone marrow microenvironment on abnormal behaviors of leukemia cells. Methods BMMC samples were separated from 54 primary acute leukemia patients and 22 normal donors and the cell lysis samples were prepared. RhoA and CDC42 proteins were determined by Western blotting. Independent pair T test was conducted to evaluate whether the differences in RhoA and CDC42 expression were statistically significant between leukemia patients and normal donors. Spearman was applied in analyzing the correlation between expression of RhoA and CDC42 proteins and clinical characters of patients. Results RhoA and CDC42 proteins level of primary acute leukemia patients was significantly higher than that of normal samples. Especially, patients with M2,M3 and M5 subtypes exhibited significant higher RhoA proteins levels and M3 subtype exhibited significant higher CDC42 protein levels. Conclusion RhoA and CDC42 protein levels of primary acute leukemia patients are significantly higher than that of normal donors. This result suggests that RhoA and CDC42 associated efficient migration of leukemia cells could be implicated in abnormal interaction of leukemic cell with bone marrow microenvironment.

Objective:To explore the pathogenesis of abnormal behavior in children with obstructive sleep apnea-hypopnea syndrome(OSAHS).Method:The behavioral problems and C-reactive protein were measured in 40 children with OSAHS and 30 children with habitual snoring who underwent overnight Polysomnography,40 cases of healthy children for the control group.Result:The ratio of abnormal behavior in OSAHS and abitual snoring children was significantly higher than that of the healthy control group,while no significant difference between the two groups.The content of C-reactive protein in OSAHS children(4.24 mg/L)was significantly higher than habitual snoring(2.76mg/L)and healthy control group(1.27mg/L);in habitual snoring children C-reactive protein was higher than in healthy control group.The content of serum C-reactive protein in OSAHS children accompanied by abnormal behavior(4.63 mg/L)was significantly higher than that without abnormal behavior(3.23 mg/L).The content of serum C-reactive protein content in habitual snoring children accompanied y abnormal behavior (3.63 mg/L)was significantly higher than that without abnormal behavior(1.76 mg/L).Conclusion:OSAHS and habitual snoring children have more behavior problems.C-reactive protein levels are higher in children with OSAHS and habitual snoring.and the levels of C-reactive protein are related to the abnormal ehavior in these children.

OBJECTIVE: To explore the pathogenesis of abnormal behavior in children with obstructive sleep apnea-hypopnea syndrome (OSAHS). METHOD: The behavioral problems and C-reactive protein were measured in 40 children with OSAHS and 30 children with habitual snoring who underwent overnight Polysomnography, 40 cases of healthy children for the control group. RESULT: The ratio of abnormal behavior in OSAHS and habitual snoring children was significantly higher than that of the healthy control group, while no significant difference between the two groups. The content of C-reactive protein in OSAHS children (4.24 mg/L) was significantly higher than habitual snoring (2.76 mg/L) and healthy control group (1.27 mg/L); in habitual snoring children C-reactive protein was higher than in healthy control group. The content of serum C-reactive protein in OSAHS children accompanied by abnormal behavior (4.63 mg/L) was significantly higher than that without abnormal behavior (3.23 mg/L). The content of serum C-reactive protein content in habitual snoring children accompanied by abnormal behavior (3.63 mg/L) was significantly higher than that without abnormal behavior (1.76 mg/L). CONCLUSION OSAHS and habitual snoring children have more behavior problems. C-reactive protein levels are higher in children with OSAHS and habitual snoring, and the levels of C-reactive protein are related to the abnormal behavior in these children.
C-Reactive Protein ; analysis ; Child ; Child Behavior Disorders ; complications ; Child, Preschool ; Female ; Humans ; Male ; Polysomnography ; Sleep Apnea, Obstructive ; blood ; complications ; psychology ; Snoring ; blood ; complications ; psychology

OBJECTIVE: To realize the characteristics of clinical symptoms and PSG in elderly patients with obstructive sleep apnea hypopnea syndrome (OSAHS). METHOD: The clinical presentations, epworth sleepiness scale (ESS) and polysomnography findings were compared between elderly patients with OSAHS and middle age patients with OSAHS. RESULT: There were no significantly differences in clinical presentations including snoring, apnea and daytime sleepiness complaint between the elderly and middle aged patients with OSAHS, but the incidences of complications such as hypertension and other cardiovascular diseases was significantly higher in elderly patients than those in the middle aged patients (P<0.01). The sleep architecture disturbance was significantly worse in elderly OSAHS patients compared with the middle age patients. The percentages of non-rapid eye movement (NREM) stage I sleep were significantly increased, the rapid eye movement (REM) sleep were significantly decreased in elderly OSAHS patients than those in middle aged group (P<0.01 or P<0.05), but the percentages of awake, NREM stage II sleep and NREM stage II-IV sleep had no significantly difference in the two groups. The apnea hypopnea index (AHI), apnea index (AI), hypopnea index (HI), snoring index, ESS and body mass index (BMI) were significantly decreased, the lowest oxygen saturation (LSO2) and micro-arousal index were significantly increased in elderly OSAHS patients than those in middle aged group (P<0.01 or P<0.05). CONCLUSION The elderly OSAHS patients are less sever than the middle age, but the elderly patients have worse sleep architecture disturbance and more complications such as hypertension and other cardiovascular diseases.
Aged ; Humans ; Middle Aged ; Polysomnography ; Sleep ; Sleep Apnea, Obstructive ; diagnosis ; physiopathology ; Sleep Stages ; Sleep, REM