Objectives To observe the co-activation phenomenon during exercise fatigue induced by the proximal muscles on the upper limbs.Methods Sixteen undergraduates not majoring in sports participated in this study,and their left arms were chosen as the observed arms and right arms were selected as the weighted arms.The weighted arm was alternatively in the state of relaxation without any load and fatigue after bending and extending elbow joints to uphold a 5 kg dumbbell.However,the observed arm kept weighing a 4 kg dumbbell with 90 degrees elbow flexion until the muscles were exhausted.The surface electromyography of biceps brachii and triceps brachii of the observed arms was measured using the ME6000.And the integrated surface electromyography (IEMG),root of mean square (RMS),mean power frequency (MPF)and median frequency (MF)were further analyzed.Results The IEMG and RMS of biceps brachii and triceps brachii of the observed arms increased gradually after the exercise began (P＜0.05)regardless of in the relaxed state or in the in the state of weighing a 5 kg dumbbell for the weighted arm,but in the state of weighting a 5 kg dumbbell the IEMG and RMS increased more significantly (P＜0.01),Meanwhile the electrical activities of the triceps brachii as an antagonistic muscle were intensively inhibited.The changes of MPF and MF of biceps brachii in the observed arms were more significant in the state of exercise fatigue than in the relaxed state (P＜0.01),but without such an impact on the triceps brachii.Conclusions The fatigue in one arm can trigger contingent changes in sEMG time domain and frequency domain indexes of its contralateral parallel muscles,suggesting that sEMG changes of upper limb proximal muscles have the co-activation effect.

BACKGROUND:High-density lipoprotein is related to lipid metabolism, but its function cannot be restricted to the scope of lipid metabolism. Simultaneously, exercise regulation has effects on the activity and amount of high-density lipoprotein, but the optimal movement pattern needs to be studied. OBJECTIVE:To offer the theoretical support for formulating fitness training and prospect the possible direction and reference in fol ow-up studying the biological function and exercise regulation of high-density lipoprotein. METHODS:PubMed database was searched for relevant articles published from 1990 to 2015 using the keywords of“HDL and exercise, HDL and biological function”in English. Final y, 44 articles were included in result analysis. RESULTS AND CONCLUSION:The biological functions of high-density lipoprotein mainly include high-density lipoprotein-mediated metabolism of glucose, protein and fat, anti-inflammation, antioxidation and insulin secretion, and at the same time, we summarize the effects of exercise on the concentration, numbers of molecular and components of high-density lipoprotein. The results indicate that the combination of resistance and endurance training is the best way for raising the concentration and functional effects of high-density lipoprotein.

Objective To explore the histopathological features, immunohistochemical characteristics and clinical manifestation of lymph nodes in patients with cat-scratch disease (CSD). Methods Nineteen cases of lymph nodes of CSD were analyzed by histopathological and immunohistochemical techniques. Results All patients with CSD had a clear history of close contact with cats. The local lymph nodes were punctured swelling. The histopathological characteristics were granulomatous small abscess, lymphocytes and immunoblastic cells growing. CEA (-), EMA (-), CD_ 45 (+), CD_ 20 (+), CD_ 45 RO (+) and CD_ 68 (++) were observed in immunohistochemistry. Conclusion CSD is a self-limited infectious disease caused by cat scratching and biting, its pathogen is bartonella henselae. Its histopathological characteristics, immunohistochemical expressions and clinical history have very important meaning for the diagnosis and differential diagnosis of CSD.

Incidence and mortality of colorectal cancer has increased significantly in recent years. Screening for colorectal cancer is the most effective method to decrease mortality. Colorectal adenoma is the precancerous lesion of colorectal cancer and can be detected through colonoscopy, which is the crucial in the early diagnosis and early treatment for colorectal cancer. The first step of screening is the selection of target population and the second step is colorectal examination. The selection of candidate for screening has direct effect on the efficacy of screening. The methods in common use include fecal occult blood test, questionnaire for high risk factors of colorectal cancer, colonoscopy, sigmoidoscopy, and CT virtual colonoscopy. Among those, colonoscopy is the most reliable method and widely used in the screening for colorectal cancer.
China ; Colonoscopy ; Colorectal Neoplasms ; diagnosis ; Early Detection of Cancer ; methods ; Humans ; Mass Screening ; methods ; Occult Blood

Antibodies, Monoclonal, Humanized ; administration & dosage ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Bevacizumab ; Capecitabine ; Chemotherapy, Adjuvant ; Colonic Neoplasms ; drug therapy ; surgery ; Deoxycytidine ; administration & dosage ; analogs & derivatives ; therapeutic use ; Disease-Free Survival ; Fluorouracil ; administration & dosage ; analogs & derivatives ; therapeutic use ; Humans ; Leucovorin ; administration & dosage ; Organoplatinum Compounds ; administration & dosage ; Semustine ; therapeutic use ; Survival Rate ; Vincristine ; therapeutic use

Congresses as Topic ; Humans ; Hypersensitivity, Immediate ; immunology ; Rhinitis ; immunology

Unlike modern large differences between Chinese and Western medicine , in the early stage of hu-man development , the ancient Greek medicine and ancient Chinese medicine during their exploration has a remark-ably consistent .They all represent the most wisdom philosophy , and good tradition a doctor should have , and thus formed the medical ethics that affect later generations .We can see segment of a whole from the theoretical system between the earliest Chinese medical Inner Canon of Yellow Emperor which formed in the spring and autumn period and the warring states period and Hippocratic Corpus which is on behalf of the 5th century BC to the 2nd century BC, the ancient Greek medicine highest achievement .But since then , Chinese traditional medicine and Western medicine have achieved the last collision , And around the second century AD completely broke ranks .We have to seek the origins from the two kinds of heterogeneous soil China and ancient Greece .Research of the relationship be-tween the period of medicine and philosophy can help us find beneficial enlightenment for the difference .

Vitamin D is a group of steroid hormones.Studies in recent years have shown that vitamin D is associated with the incidence of cerebral infarction,the severity of infarction,and functional outcome.In addition to the indirect effect of vascular risk factors,vitamin D may also play the direct protective effect by inhibiting inflammation and oxidative stress after cerebral infarction.

In recent years,the incidence of colorectal polyps and colorectal carcinoma showed a trend to increase gradually. Statistical analysis demonstrated that 80% of colorectal carcinoma were developed from colorectal adenoma,and adenomatous polyps accounted for 1 / 2-1 / 3 of colorectal polyps. Endoscopy is the golden standard for examining intestinal lesions,yet it is not completely correct and certain missed diagnosis has occurred. Factors causing missed diagnosis of colonoscopy include lesion factors and non-lesion factors. This article reviewed the advances in studies on missed diagnosis of intestinal polyps and related factors in colonoscopic examination.

Objective To explore the microsurgical technique of ependymoma in conus medullaris and cauda equina. Methods Sixteen patients with ependymoma confirmed by pathology after operation in conus medullaris and cauda equina were analyzed retrospectively for their clinical manifestations, imaging features and microsurgical treatment. Results All patients conducted preoperative MRI, and total tumor resection was achieved in 14 patients and subtotal resection in 2 patients. The pathological examinations confirmed the tumor as myxopapillary ependymomas in 7 patients. Symptoms of fifteen patients were alleviated significantly after operation. One patient had urine retention after operation and was gradually restored 1 week after operation. All patients were followed up for 1-3 months, and there was no case of recurrence. Conclusions Ependymoma in conus medullaris and cauda equina is rare and easily misdiagnosed, with no specific clinical manifestations. MRI should be conducted as soon as possible to identify the diagnosis. Microsurgical treatment is an effective method for ependymoma in conus medullaris and cauda equina.