ObjectiveTo evaluate the X-ray features of the patella sleeve fractures in children.MethodsThe X-ray findings of sleeve fractures were analyzed retrospectively in 11 children to assess the radiologic features.Results The main X-ray findings in children ( 11 cases ) included displacement of patellas ( 9 cases ),widened joint spaces ( 5 cases),separation of the patella fragment ( 11 cases ) and swelling of the knee( 11 cases).One boy with sleeve fracture of the inferior pole of the patella was missed because the shell-like avulsion fracture can not be detected till 15 days later.ConclusionThe patella sleeve fractures in children are uncommon.The radiologic features of the sleeve fractures need be well acquainted by clinicians to facilitate early diagnosis.

The analytical chemistry is the specialized fundamental course of medical laboratory major.To the higher vocational students,it is an experiment operation technique,so to introduce the pattern based on the work process curriculum is helpful to the deconstruction and reorganization of analytical chemistry curriculum,and can stimulate students'study interest enormously and get good teaching effect.

OBJECTIVE: To established an HPLC method for the determination of main component and related substances in amlodipine maleate dispersible tablets. METHODS: The separation was performed on a Lichrospher C18 column. The mobile phase consisted of methanol-0.03 mol?L-1 potassium dihydrogen phosphate (70 ∶ 30) at the flow rate of 1 mL?min-1. The detection wavelength was set at 237 nm and column temperature was 30 ℃. RESULTS: The linear range of amlodipine maleate were 31.94～127.75 ?g?mL-1 (r=0.999 8, n=5). The average recovery was 99.5% (RSD=0.39%, n=9). The contents of related substance were all lower than 0.38%. CONCLUSION: The method is simple, rapid, accurate and specific for the quality control of amlodipine maleate dispersible tablets.

BACKGROUND:Hydroxyapatite/gel nano-composite has the same mechanical strength to the natural bone, but its ability to repair bone defects and osteogenic effect need to be confirmed by further studies.
OBJECTIVE:To explore the repair effect of hydroxyapatite/gel bionic composite in skul defects of rabbits.
METHODS: The hole-like calvarium defect models were established in rabbits, and treated with hydroxyapatite/ gel composites (hydroxyapatite/gel group), autologous skul as positive control (autologous bone group) and
nothing as negative control (blank group). The repairing condition in the skul defect areas were observed and analyzed by X-ray and CT at 4, 8, 12 weeks after implantation.
RESULTS AND CONCLUSION: After 8 weeks, X-ray assessment showed that normal-like bone tissue appeared in the defect region of the autologous bone group; in the hydroxyapatite/gel group, dense bone with similar
morphology to normal bone tissue was found in the central site of defect region, and the boundary was slightly blurred. After 12 weeks, the hydroxyapatite/gel showed blurred edge compared with autologous bone, and the center of the composite was disconnected; in the blank group, a clear and regular transmitted shadow was
observed. After 12 weeks, CT examination showed that the hydroxyapatite/gel was connected tightly with the surrounding normal bone tissue. As a new bionic composite, the hydroxyapatite/gel can achieve good effect in repairing skul defects of rabbits.

BACKGROUND: The number of roots and morphology of the root canal system of permanent mandibular first molars vary greatly among different populations; therefore, it is important to be familiar with the variations in the root and root canal for the location and negotiation of the canals. OBJECTIVE: To investigate the variations in the roots and root canal of permanent mandibular first molars in the Han population of southwest Shandong Province by cone-beam CT. METHODS: 656 patients undegoing cone-beam CT examination at the Department of Stomatology, Affiliated Hospital of Jining Medical University, from September 2012 to October 2015 were recruited, and all patients had healthy, well-developed, and untreated bilateral permanent mandibular first molars with normal appearance. Subsequently, the three-dimensional reconstruction based on cone-beam CT data was performed using Planmeca Romexis software to observe the variations in the root and root canal system of permanent mandibular first molars in the Han population of southwest Shandong Province. RESULTS AND CONCLUSION: Among 1312 permanent mandibular first molars, the incidence of permanent mandibular first molars with three roots was 70.66% (927/1312); the majority of root canal variations involved two roots and three root canals, accounting for 48.09% (631/1312). The incidence of distal root was 35.37% (232/656), the incidence of distal root was 29.34% (385/1312) in total teeth, and the incidence of distal root bilaterally was 68.95% (153/232). There was a significantly increased incidence of distal root on the right side than on the left side (P < 0.05), and the incidence in the male was significantly higher than that in the female (P < 0.05). These results suggest that most of Han populations in southwest Shandong Province have permanent mandibular first molars with two roots, and the root canal variations mainly involve two roots and three root canals, with the high incidence of distal root. Moreover, cone-beam CT is available for detecting the variation in roots and root canal system, which can provide references for root canal treatment.

BACKGROUND: Educative instruction is good for the improvement of learning and behavior disorder in children with learning disorder. If this educative instruction were individualized, i. e. different education is provided for different individual, it would receive even better effects.OBJECTIVE: To explore the method and effect of educative instruction for children with learning disorder to accumulate experiences for the development of their learning potentials.DESIGN: A paired(pairing the subjects with similar age and learning disorder) case analysis based on the suffers .SETTING: A medical college of some university.PARTICIPANTS: Eight children with learning disorder were selected from Zhenjiang City Dongwu Kindergarten or Zhenjiang City Dagang Central Primary School. These 8 cases suffered from 4 types of disorders including clumsiness, seclusive personality, language disorder, and poor learning ability. Eight cases were randomly divided into education group and control group.METHODS: Cases of control group received normal educations without specific interventions. Cases of education group received individual customized educative instructions. The educative effects were observed after 3 months.MAIN OUTCOME MEASURES: The improvement of clumsiness, seclusive personality, language disorder or poor learning ability in children with learning disorder.RESULTS: Cases of education group had better psychological and behavior improvements than that of control group after individual educative instruction.CONCLUSION: Individual educative instruction for children with learning disorder is an effective approach for the development of their learning potentials.

To study the influence of hypercholesterolemia with caveolin-1 on the plasmalemma of vascular endothelium, we used the methods of immunohistochemistry to detect the dynamic changes of caveolin-1 in cultured ECV-304 cells which were stimulated high cholesterol serum and the arterial endothelium of hypercholesterolemia rats. It is resulted that high cholesteorol level can upregulate the expression of caveolin-1 both in vitro and in vivo. In the initial stage of hypercholesterolemia model, the expression of caveolin-1 increased as the time of high cholesterol level added, but in the later period it was decreased slightly.
Animals ; Aorta ; pathology ; Caveolin 1 ; Caveolins ; biosynthesis ; genetics ; Cells, Cultured ; Cholesterol ; blood ; Endothelium, Vascular ; cytology ; metabolism ; Female ; Humans ; Hypercholesterolemia ; metabolism ; Male ; Rabbits ; Rats ; Rats, Sprague-Dawley ; Umbilical Veins ; cytology

Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is a common and non-lethal urological condition with painful symptoms. The complexity of CP/CPPS’s pathogenesis and lack of efficient etiological diagnosis results in incomplete treatment and recurrent episodes, causing long-term mental and psychological suffering in patients. Recent findings indicate that the autonomic nervous system involves in CP/CPPS, including sensory, sympathetic, parasympathetic, and central nervous systems. Neuro-inflammation and sensitization of sensory nerves lead to persistent inflammation and pain. Sympathetic and parasympathetic alterations affect the cardiovascular and reproductive systems and the development of prostatitis. Central sensitization lowers pain thresholds and increases pelvic pain perception in chronic prostatitis. Therefore, this review summarized the detailed processes and mechanisms of the critical role of the autonomic nervous system in developing CP/CPPS.Furthermore, it describes the neurologically relevant substances and channels or receptors involved in this process, which provides new perspectives for new therapeutic approaches to CP/CPPS.

Objective To explore the bundle nursing impacting on self concept among rectal cancer patients with permanent colostomy, and provide evidence for clinical health education and psychological nursing for patients with permanent colostomy. Methods A total of 100 permanent colostomy patients admitted and measured by self-concept scale and them received bundle nursing. After 4 weeks intervention, the self-concept scale was used again. We compared the change of self-concept in each dimensions before and after interventions and analyzed by SPSS 17. 0, and t test for group comparison. Results Through nursing bundle intervention, the each dimensions of self-concept in rectal cancer patients with permanent colostomy improve except self-criticism decreased, including self-identity, self-satisfaction, self-behavior, self-physiology, self-ethic, self-psychology, self-family, and self-society (t = 10. 12,9. 02,7. 82,6. 98,7. 37,6. 18,8. 34,7. 16,7. 40, respectively; P <0. 01). Conclusions Bundle nursing contributes to self-concept level of rectal cancer patients with permanent, and enhances the level of psychological health and quality of life effectively.

Objective To compare the performance of colitis induced by dextran sulfate sodium (DSS) between Lnk-knockout mice and wild-type mice. Methods The C57 BL/6 mice with similar week age were divided into wild type group (WT), wild type mouse with colitis group (WT +DSS), Lnk-knockout group (KO) and Lnk-knockout mouse with colitis group (KO + DSS). WT and KO mice were admitted to drink water freely, WT + DSS and KO + DSS mice was allowed to drink2. 5％ DSS aqueous solution freely. The experiment was carried out for 7 days to observe daily weight change, fecal texture (soft or hardness) and intestinal hemorrhage in mice, and to evaluate the disease activity index (DAI). After 7 days, the peripheral blood was collected to detect the regulatory B-cell (Breg) frequency by flow cytometry in the peripheral blood of WT mice and KO mice. The mouse was sacrificed, and the bowel was taken to observe the shape, color and measure the length of the intestine. The colonic tissue was produced by histological sections and HE staining, and histological changes were observed under the microscope. Results The bowel movement was normal in WT group and KO group, and the mice in KO + DSS group and the WT + DSS group had manifestation of earlier diarrhea and blood-draining. In the experimental period, the weight of KO + DSS group was significantly lower than the other 3 groups, and DAI in the KO + DSS group increased significantly with time. Breg cells frequency in KO group was significantly lower than WT group. In the KO +DSS group, colon obviously shortened, microscopic examination of HE tissue section showed erosive bleeding congestion, multiple lesions shallow ulcer, inflammatory cell infiltration mucosa and submucosa with involvement of the muscle layer, which indicated increased inflammatory response.Conclusion Lnk deficiency can aggravate the performance of DSS-induced colitis in mice, which may be related to the decrease of Breg cells frequency and negative regulation of inflammatory response in Lnk KO mice.