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Abstract@#The popularization of the use of electronic has become a global trend, and children are exposed to devices at younger ages. A large proportion of children and adolescents spend on screen time more than 2 h which is recommended in most guidelines. The paper reviews possible effects of screen time on physical and mental health, as well as mental disorders in children and adolescents. It is found that excessive screen time showed negative impacts on mental health, including depression, anxiety, mood disorder, social adaptational problems, behavioral disorders, self injurious behaviors, and health risk behaviors. Much attention has been paid on the association between excessive screen time and mental health of children and adolescents, while possible mechanisms and influencing factors are lacking. Effective intervention studies are needed to provide a basis for child and adolescent health promotion.
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Objective To explore whether augmenter of liver regeneration (ALR) can serve as early diagnostic biomarker in the patients with acute kidney injury(AKI).Methods The inpatients with possibility to AKI in the central ICU of Second Affiliated Hospital of Chongqing Medical University from October 2014 to October 2015 were recruited and assigned to the AKI group and non-AKI group according to the KDIGO guidance.Blood and urine ALR and blood creatinine were detected at 0,6,12,24,48,72 h after entering the group.Results Among all cases,40 cases(62.5％) developed to AKI.Blood ALR and urine ALR at 6h after entering the group in the AKI group began to significantly increase compared with the non-AKI group(P＜0.05),the blood and urine ALR levels reached to the peak value at 12,24 h after entering the group;the blood creatinine level at 12 h after entering the group in the AKI group began to significantly increase compared with the non-AKI group(P＜0.05),blood creatinine level was still slowly and progressively elevated at 72 h after entering the group.Conclusion Serum and urine ALR levels are significantly increased in the early stage of AKI,which indicates that ALR may be a new type biomarker for diagnosing AKI.
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At present, the suitable sports rehabilitation methods for frail old people mainly include endurance training, resistance train-ing and comprehensive functional training, while comprehensive functional training includes aerobic exercise and anaerobic exercise, and is suitable for the frail elderly to do exercise at home, which is more conducive to further large-scale promotion. In addition, long-term low and medium intensity exercise can improve the balance ability of the elderly, prevent them from fall, improve the physiological function, and ef-fectively regulate muscle potential;while, the high intensity exercise has greater risk for older people. This article introduced the types and effects of exercise in order to provide reference basis for frail old people in China.
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@#Objective To analyze the relationship between knowledge on cardiovascular disease prevention and ideal cardiovascular health behaviors and factors in community elderly. Methods From December, 2015 to May, 2016, totally 400 elderly in communities with-out overt cardiovascular disease were conveniently sampled. The level of knowledge on cardiovascular disease prevention was measured by self-designed cardiovascular disease prevention questionnaire. And each of the ideal cardiovascular health components was collected. Re-sults A total of 390 responses were valid. 13.85%community elderly were with high level of the knowledge. There were significant differ-ences in the distribution of cardiovascular health indexes among various leves of the knowledge groups (χ2>9.974, P<0.05), except choles-terol (P>0.05). The level of the knowledge was positively correlated with the scores of cardiovascular health behaviors and health factors (r>0.354, P<0.01). The cardiovascular health score, health behaviors score, health factors score and number of ideal cardiovascular health in-dexes were significantly different among various levels of the knowledge groups (F>8.961, P<0.001). Conclusion The level of knowledge on cardiovascular disease prevention was positively correlated with cardiovascular health behavior and health factors. The scores of cardio-vascular health score, health behaviors score and health factors increased with the improvement of knowledge on cardiovascular disease pre-vention.
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Sarcopenia is common in chronic heart failure. The pathogenesis of chronic heart failure-related sarcopenia is complex and diverse. Resistance training, as the main intervention for chronic heart failure-related sarcopenia, is widely applicated as effective and safe therapy.
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With the rapid increase of the number of cardiovascular disease patients in China, and the popular trend of cardiovascular disease risk factors is becoming more and more obvious, the control of risk factors for cardiovascular disease has become an important public health problem as well as a great challenge to social and economic development. Recent studies show that resistance training plays a positive impact on the control of risk factors for cardiovascular disease. This article reviewed the related literature in recent years for the resistance training control risk factors of the cardiovascular disease, and stated the precautions and challenges during the process of the implementation of resistance training in order to provide new clues to the research and practice for control the risk factors of cardiovascular disease .
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Objective To study the postpartum pelvic floor rehabilitation on the improvement of pelvic floor electrical physiological indexes and the prevention of female pelvic floor dysfunction in China. Methods A multicenter prospective randomized controlled study was carried out. From October 2011, postpartum women in five provinces were randomly assigned into treatment group and control group. The women in treatment group received electrical stimulation and biofeedback treatment. The women in control group performed pelvic floor muscle exercise at home. When 6 months and 12 months after delivery, comparing two groups of patients with pelvic floor electrical physiological indexes and pelvic organ prolapse quantitation measurements (POP-Q), to evaluate the effect of postpartum pelvic floor rehabilitation on the prevention of pelvic floor dysfunction. Pelvic floor impact questionnaire short form (PFIQ-7) and pelvic organ prolapse/incontinence sexual questionnaire-12 (PISQ-12) were used to evaluate the influence on quality of life and sexual life. Results Until June 2013, 324 women were participated, 124 in control group, 200 in treatment group. According to the baseline results, there was statistical significance in the results of pelvic floor electrical physiological indexes between the treatment and control groups in postpartum 6 months and 12 months; the proportion above level Ⅲ of type Ⅰ and type Ⅱ muscle fibers strength in the treatment group, it was from 41.5% (83/200) and 40.5% (81/200) to 76.3% (145/190) and 79.5% (151/190) in postpartum 6 weeks and postpartum 6 months, increased to 80.6%(58/72) and 80.6%(58/72) in postpartum 12 months, improved significantly comparing with the control group (P0.05). There was no significant difference in the questionnaires in quality of life and quality of sexual life (P>0.05). Conclusion Neuromuscular electrical stimulation and biofeedback therapy in the early postpartum period could obviously improve pelvic floor electrical physiological indexes, and is beneficial to prevent the pelvic floor dysfunction.
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Objective To investigate the effect of pelvic floor muscle exercise on perimenopausal female sexual dysfunction. Methods Forty six patients with perimenopausal female sexual dysfunction received pelvic floor muscle exercise. Sexual function and pelvic floor muscle strength were compared between pre-and post-exercises. Result The patients′pelvic floor muscle strength and sexual function after exercises were significantly better than those before the exercises (P<0.05). Conclusion Implementation of the pelvic floor muscles exercise in the patients with perimenopausal sexual dysfunction can strengthen pelvic floor muscle and thus alleviate their sexual dysfunction.
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OBJECTIVE@#To compare the time domain and the frequency domain of speech-evoked auditory brain-stem response measured by stimulation of left and right ears, and to explore the difference and possible reasons of neural coding for speech from different ears in auditory brainstem.@*METHOD@#Speech-ABRs to syllable /da/ of 31 healthy adults were recorded. Statistical analysis was performed on time-domain parameters, such as latencies and amplitudes of featured peaks, and frequency-domain ones, such as amplitudes of the fundamental frequency and the first formant of speech-ABRs ranging from 20-50 ms. A scoring criterion to grade the appearance of featured waves was proposed for waveform evaluation.@*RESULT@#There were no significant difference for the latencies of binaural featured peaks and amplitudes of feature peaks (except peaks A and O). The waveform .scores of right ear were greater than that of left ear. The amplitudes of fundamental frequency of binaural waves were both greater than that of the first formant. There was no significant difference of amplitudes of fundamental frequency and the first formant between two ears.@*CONCLUSION@#The origins and distributions of speech-ABR are essentially symmetrical in brainstem in contrast with the hemisphere asymmetry of speech.
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Adolescent , Adult , Female , Humans , Male , Young Adult , Acoustic Stimulation , Ear , Physiology , Evoked Potentials, Auditory, Brain Stem , Physiology , SpeechABSTRACT
In some auditory evoked potential (AEP) examinations, high rate stimulation paradigms deliver more stimuli with the same period of time, which might lead to overlapping responses. At present, several established techniques can be proposed to address such problem, thus the research scope in both scientific and clinical applications is expanded. In this study, the restoring efficiency of evoked responses is investigated using a simulation strategy. We examined the AEPs derived from three paradigms--conventional ensemble averaging, continuous loop averaging deconvolution (CLAD) and maximum length sequence (MLS). Their performances were evaluated by correlation coefficients and Euclidean distances between ideal and the derived responses. We found that MLS can only slightly enhance the performance at the cost of larger stimulus jitter and much more stimulus numbers; while CLAD method with lower jittering even degenerates the quality, suggesting that, in practical use, the recording efficiency will not be significantly improved by simply using high rate stimulation with overlapping responses introduced.
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Humans , Acoustic Stimulation , Algorithms , Artifacts , Electroencephalography , Methods , Evoked Potentials, Auditory , Physiology , Evoked Potentials, Auditory, Brain Stem , Models, Theoretical , Signal Processing, Computer-AssistedABSTRACT
Objective:To investigate the speech-evoked brainstem response (speech-ABR) of normal young people under different recording periods,which can provide the experimental evidences for researches on the stability of speech-ABR and promote its applications in clinical researches.Methods:40 healthy young people were randomly divided into two groups,which were tested following the same protocol at different time of two months interval.Latencies and amplitudes of the feature peaks in these groups were compared and the rates of appearance (detection rate) of the feature peaks were analyzed statistically.Results:Speech-ABRs were recorded successfully in two groups.The latencies and amplitudes of feature peaks in these groups were not different statistically,and the detection rates of V,A,C and F peaks were higher than others.Conclusion:The speech-ABRs of the two groups are stable,and the V,A,C and F peaks can be used as important indicators of clinical observation,showing that Speech-ABR is a promising tool in the study of Speech perception mechanism.
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Objective:To compare the time domain and the frequency domain of speech-evoked auditory brainstem response measured by stimulation of left and right ears, and to explore the difference and possible reasons of neural coding for speech from different ears in auditory brainstem.Method:Speech-ABRs to syllable /da/ of 31 healthy adults were recorded. Statistical analysis was performed on time-domain parameters, such as latencies and amplitudes of featured peaks, and frequency-domain ones, such as amplitudes of the fundamental frequency and the first formant of speech-ABRs ranging from 20-50 ms. A scoring criterion to grade the appearance of featured waves was proposed for waveform evaluation.Result:There were no significant difference for the latencies of binaural featured peaks and amplitudes of feature peaks(except peaks A and O). The waveform scores of right ear were greater than that of left ear. The amplitudes of fundamental frequency of binaural waves were both greater than that of the first formant. There was no significant difference of amplitudes of fundamental frequency and the first formant between two ears.Conclusion:The origins and distributions of speech-ABR are essentially symmetrical in brainstem in contrast with the hemisphere asymmetry of speech.
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OBJECTIVE To explore the latency characteristics of speech evoked auditory brainstem response(speech-ABR)from healthy Chinese adults by different stimulation intensities and its significance in neural encoding of speech in the brainstem. METHODS ABRs to speech syllables of 32 subjects were recorded in four stimulus intensities varied from 20 to 80 dB SPL by 20 dB steps, under 11.1/s stimulus rate. A set of featured waves were determined under these intensities, and then the characteristics of their latencies were analyzed. RESULTS A series of featured waves were observed starting from onset response(including V and A waves), transitional C wave, then following frequency-following responses(FFRs), and the offset O wave. As the reduction of stimulus intensity, the latencies of speech-ABR delayed significantly(P
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Objective To explore the value of Ligasure and Ultracision in total laparoscopic hysterectomy (TLH). Methods From January 2002 to December 2006,totally 225 patients received total laparoscopic hysterectomy in our hospital. Among the cases,Ligasure was used in 152 patients,and Ultracision were employed in 72. The clinical data of the patients were reviewed. Results The mean operation time in the Ligasure group was significantly shorter than that in the Ultracision group [(104.9?29.2) min vs. (152.4?46.6) min,t=-9.329,P=0.000]. And the mean blood loss of the Ligasure group was significantly less than that in the other group [(32.9?14.9) ml vs. (126.4?12.1) ml,t=-46.710,P=0.000]. In both the groups,no patient was converted to open surgery or developed complications or surgical injuries. Conclusions Both Ligasure and Ultracision are safe and effective for total laparoscopic hysterectomy. Ligasure is superior in the management of uterine vessels,while the Ultracision is more effective in opening the vesicle and separating the cardinal ligament.
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OBJECTIVE:To provide reference for rational use of drugs in hospital under the condition of the separation of drug and medical care. METHODS:The volumes of business,income from drug and income condition of medical staff were compared before and after implementation of separation of drug and medical care. The chance for pharmaceutical work under the condition of the separation of drug and medical care were analyzed to put forward advice for improvement of drug use in medical institutions. RESULTS & CONCLUSION:After conducting Wuhu model in 8 medical institutions,some achievement and experience have been obtained. It should be propelled to implement effective administration for rational use of drugs to resolve the problems on over expensive medical service.
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Objective To investigate the efficacy and safety of laparoscopic operations of ovarian tumors in children.Methods A total of 24 children with ovarian tumors treated laparoscopically from January 2000 to March 2005 were studied.The laparoscopic operations(tumor enucleation or unilateral adnexectomy) were conducted under general anesthesia with endotracheal intubation.Electrocoagulation of the capsule was performed alongside the borderline of the lesion for tumors 5 cm in diameter.After blunt dissection of the tumor and capsule,the lesion was completely enucleated.Hemostasis of the residual cut surface was accomplished by using electrocoagulation,with no need of suture. For large ovarian cysts disturbing laparoscopic visualization,the aspiration of hydatid fluid was conducted before the enucleation.Results All the operations were successful completed under laparoscope,including 24 cases of tumor enucleation and 2 cases of unilateral adnexectomy.The operation time was 50?20 min,the amount of hemorrhage was 30?10 ml,and the postoperative hospital stay was 2~4 d.No surgical complications or wound infection occurred.Follow-up in the 24 cases for 1 year found no recurrence.Conclusions Laparoscopic operations for ovarian tumor in children is safe and effective.
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AIM: To investigate significance of the telomerase activity and serum CA125(cancer antigen 125) expression in the predicting chemotherapeutic response in human ovarian epithelial carcinoma(hOEC).METHODS: The expressive levels of telomerase activity in ascites exfoliative cells or peritoneal washing fluids and the serum CA125 were detected by TRAP-PCR-ELISA and ELISA in 35 hOEC patients.RESULTS:(1) Telomerase activity was detected in 30 out of 35(85.7%) patients(P