Wheezing in children is a common problem.Approximately 30 percent of infants will have at least one wheezing episode.Although asthma is the condition most commonly associated with wheezing,the high prevalence of wheezing as a common presenting complaint requires consideration of a broad and age-dependent differential diseases.A high index of suspicion of cardiovascular anatomic anomalies should be maintained in infants and children with recurrent wheezing and minimal improvement despite reasonable treatment.Compression of the pediatric airway is a relatively common and often unrecognized complication of a variety of cardiovascular diseases.The most common congenital anomalies associated with airway compression are the vascular rings.Vascular ring abnormalities are aortic arches abnormalities,aberrant left pulmonary artery (pulmonary sling) or aberrant i nnominate artery (innominate artery syndrome).Aortic arches abnormalities include double aortic arch,right/left sided aortic arch with ligamentum arteriosum and aberrant left subclavian artery or cervical aortic arch.Other rare reasons could cause the compression of airway are absent pulmonary valve,aneurysm,left atrial enlargement or massive cardiomegaly.Imaging techniques are usually required for diagnosis.First-tier evaluation of the child with recurrent wheeze should include a chest radiograph.Echocardiography,multi detector computed tomography (MDCT) or magnetic resonance imaging (MRI) are performed as the diagnostic pathway.Bronchoscopy is currently the techniques to assess the degree of bronchial malacia and narrowing in pre-operation.Treatment of these abnormalities usually is surgical.

BACKGROUND: Anchorage control is a critical part of orthodontic treatment, and physiologic anchorage loss consists of molar growth and drifting.OBJECTIVE: To detail the principles of physiologic anchorage spee-wire system through the growth and biologic force aspects.METHODS: A computer retrieval of PubMed and CNKI databeses was performed for relevant articles published from June 1976 to October 2016 using the keyword of physiologic anchorage control;anchorage loss; mandible growth in English and Chinese, respectively.RESULTS AND CONCLUSION: The physiologic anchorage spee-wire system cannot only avoid natural growth-induced physiological anchorage loss but also preserve molar anchorage,so as to achieve the request of maximum anchorage.

Tracking changes in the number and function of T cells is of great value to clinical diagnosis and evaluation of the efficacy of allergen immunotherapy. This review summarizes research progress in detection methods for allergen-specific T cells and their application, such as carboxyfluorescein succinimidyl ester dilution assay, enzyme-linked immunospot assay, intracellular cytokine staining assay and microarray immunosensors, providing references for selecting and developing appropriate detection methods in clinical practice.

Metabolic bone disease in nephrotic syndrome(NS) are increasingly being renal physician's attention.As calcium binding protein and VitD binding protein losing with a large number of protenuria, the bone metabolic biochemical abnormalities had happened at the beginning of the onset of the nephrotic syndrome, and is further exacerbated by therapeutic high-dose or long course of glucocorticoids (GC) application.The main mechanism of the glucocorticoid-induced osteoporosis (GIOP) is for GC to inhibit the activity of osteoblasts and promote apoptosis of osteoblasts and formation of osteoclasts, resulting in secondary hyperparathyroidism,leading to increasing the risk of osteoporosis,slow growth and fracture,seriously harm to children's physical and mental health.The biomarkers of bone transform can prompt the NS with bone metabolic abnormalities early;vertebral body bone dual-energy X-ray absorptiometry bone mineral density detection is the best method and position to determine GIOP.As the most commonly used and effective means to prevent and control metabolic bone disease, calcium supplements and VitD were always taken when GC was treated for NS, even the dosage of GC was very low.So far, it is still lack of guideline of prevention and treatment of bone metabolic abnormalities in NS in children.

Guanylyl cyclase C( GCC)is a specific intestinal tissue polypeptide expressed in intestinal epithelial cells,and is also expressed in colorectal cancer cell line and primary and metastatic colorectal cancer. Studies have indicated that level of GCC mRNA in blood could contribute to the early detection of colorectal cancer metastasis and recurrence,and is beneficial to the formulation of therapeutic regimen and follow-up. This article reviewed the progress in research on GCC in diagnosis and treatment of colorectal cancer.

Objective To explore the effect of flexible ureteroscope holmium laser treatment on segment kid-ney stones and ureter.Methods 100 cases with stone were randomly divided into two groups according to the digital table method.The control group received puncture percutaneous nephrolithotomy lithotomy,the observation group was treated with flexible ureteroscope holmium laser surgery.The surgical time,hospital stay,surgical removal rates and adverse events were observed.Results The operation time[(46.12 ±11.34) min],hospital stay[(5.34 ± 1.67)d],surgical removal rate(92.00%) and adverse reaction rate (14.00%) of the observation group were better than the control group (t=4.21,2.98,4.53,χ2 =3.97,all P<0.05).Conclusion Flexible ureteroscope holmium laser surgery in the treatment of renal and ureteral calculi can get better treatment.

To investigate the therapeutic effect of electroacupuncture on shoulder-hand syndrome in apoplectic hemiplegia. Methods:One hundred and sixty patients were randomly divided into two groups. 80 cases in the control group was treated by conventional acupuncture by filiform needles and 80 cases in the treatment group were treated by electroacupuncture. The therapeutic effects were evaluated after two courses of treatment.Results:After two courses of treatment,the therapeutic effect for edema on back of the hand and hand pain in digital flexion and the total effective rate were better in the treatment group than in the control group (P＜0.05). Conclusion:Electroacupuncture is of significant importance for relieving pain on back of hand,preventing the muscular atrophy of hand and promoting recovery from apoplexy.

Objective To investigate the effects of different degrees of white mustard stir-processing on patient skin after acupoint application. Methods The same production batch of raw white mustard were randomly allocated to groups A, B and C. Fifty asthma patients were received acupiont application. Raw white mustard was stir-processed into slight yellow in group A, deep yellow in group B and coke yellow in group C. the skin reaction was observed in the three groups of patients after acupoint application. Results Obvious skin burning heat and burning pain sensations, and skin redness accompanied by many blisters occurred at the place of application in group A. Skin warming sensation, no or a small amount of needle tip-like blisters and skin redness without edema occurred at the place of application in group B. No or slight skin redness and unobvious skin warming sensation occurred at the place of application in group C. Conclusion White mustard stir-processed into deep yellow can effectively reduce the excessive stimulation of medicine to the skin and not markedly affect the amount of medicamentous stimulation to the acupoint.

Objective To investigate the efficacy of procaterol and montelukast on lung function in children with moderate persistent asthma.Methods 86 children with moderate persistent asthma from January 2014 to December 2014 in our hospital were studied,and according to the random number table method,they were divided into the control group and the observation group,43 cases in each group.The observation group was treated with procaterol combined with montelukast,the control group was treated with procaterol.The cough relief and disappearance time,the improvement of pulmonary function after treatment,the clinical effect and the control of asthma after one month of the two groups were compared.Results After treatment,children cough relief and disappeared time of the observation group was significantly shorter than the control group (t =4.418 5,3.784 4,P =0.000 0,0.000 3).After treatment, the pulmonary function was found to improve the situation of the observation group being good than the control group, PEF,FVC,FEV1 ,FEV1 /FVC predicted values were significantly higher than the control group (all P <0.05).The total effective rate of the observation group (93.00%)was significantly higher than 74.40% of the control group (u =2.223 2,P =0.026 2).After one month of treatment,the basic control rate of the observation group(88.37%) was significantly higher than 67.40% of the control group(u =2.386 6,P =0.017 0).The incidence rate of adverse reactions of the observation group (6.98%)was significantly lower than 51.16% of the control group(P <0.05). Conclusion Procaterol combined with montelukast in the treatment of children with moderate persistent bronchial asthma can improve clinical efficacy,safety,and improve symptom control rate,it is worthy of promotion.

Retinal neuronal cells are crucial in the formation of vision.Injury or death of these cells may lead to irreversible damage to visual function due to their low regenerative capacity.The P2X7 receptor is a trimeric adenosine triphosphate (ATP)-gated cation channel.Recent studies have shown that P2X7 receptor plays a role in retinal neuronal death.In a series of animal models,when exposed to conditions of hypoxia or ischemia,elevated ocular pressure,trauma and exogenous agonists,P2X7 receptor activated by extracellular ATP can cause death of retinal neuronal cells such as retinal ganglion cells and photoreceptor cells through direct or indirect pathways.Blocking the expression and function of P2X7 receptor by its specific antagonist and gene knocking-out,the loss of retinal neuronal cells is significantly attenuated.P2X7 receptor may become a potential novel neuroprotective target for diseases related to the loss of retinal neurons.