Reviewing the theory of chaos in the field of nonlinear dynamics, this paper summarized theory of chaos and its applications in medical signal processing including electroencephalogram(EEG) signal?electrocardiogram(ECG) signal?electromyogram(EMG) signal, etc. The foreground is reviewed to advance the study and application of nonlinear dynamics theory in biomedical engineering.

BACKGROUND: Studies have shown that Maca can enhance immune cel function, improve mitochondrial respiratory chain enzymes, and play a role in anti-oxidation and anti-aging.
OBJECTIVE: To observe Maca effects on kidney mitochondrial respiratory function and anti-aging capabilities in elderly rats after exhausted exercise.
METHODS: 10-month-old elderly rats were intragastrical y administrated Maca powder 5 g/kg, once a day, and did treadmil exercise, 5 days in a week. Rats were randomly divided into control group, Maca group and training group and Maca+training group. At 6 weeks after training, rats in each group did exhausted exercise (35 m/min), and immediately received intraperitoneal injection of 2% sodium pentobarbital. The kidney was obtained, and mitochondria were extracted by differential centrifugation. A spectrophotometer was used to measure mitochondrial respiratory chain activity.
RESULTS AND CONCLUSION: (1) Mitochondrial respiratory chain enzyme and antioxidant enzyme activity: mitochondrial respiratory chain enzyme I-III, superoxide dismutase and glutathione peroxidase activities were higher in the Maca+training group than in the control group, Maca group and training group (P < 0.05 or P < 0.01), but malondialdehyde content was lower (P < 0.05 or P < 0.01). (2) Results suggested that the combination of supplement Maca and incremental exercise can improve mitochondrial respiratory function and delay aging in the kidney of aged rats after exhausted exercise. Moreover, supplemented Maca and incremental exercise have a synergistic effect.

Objective To compare the effects of vasopressin and adrenaline on cerebral resuscitation in rats. Method Sixty male SD rats were used to set the animal model of cardiac arrest and were randomly (random number) divided into 4 groups (n = 15/group): sham operation group (sham-gro), negative control group (neg-gro), vasopressin group (vas-gro) and adrenaline group (adr-gro). Blood pressure was recorded, and brain tissue samples were obtained. Results There was no significant difference in the recovery rate between vas-gro and adr-gro 30 min after resuscitation (P ＜0.05). The mean blood pressure in vasgro was higher than that in adr-gro within 30 min (1,2, 5, 10, 20, 30 min) after restoration of spontaneous circulation. The measured MDA, SOD and GSH were significantly different (P ＜ 0.05) between each two groups among vas-gro, sham-gro and adr-gro. Conclusions The recovery rate was similar between vasopressin group and adrenaline group during cardiopulmonary resuscitation in rats. However, vasopressin can to maintain the mean arterial pressure at a higher level after resuscitation, which can the increase the cerebral perfusion and reduce brain cell damage.

The characteristics of medical and health literature novel assessment in institutions of armed forces were described from the secrecy of projects for literature novelty assessment , the limitations of consignee institution , and the non-profitability of literature novelty assessment agency .The major problems of medical and health literature novel assessment in institutions of armed forces were elaborated in terms of the literacy, instability, competency and knowledge limitation of literature novel assessment staff with suggestions put forward for their solution such as strengthening the construction of talent team, joint development and sharing of resources.

Objective To explore the effects of estrogen,sport walking with weight and estrogen plus sport walk on serum lipid,bone metabolism and bone mineral density(BMD) in postmenopausal women.Methods 52 postmenopausal women were divided into the hormone replacement therapy(HRT) group(n=12),sport walking with weight group(Sp group,n=14),HRT + Sp group(n=12) and control group(n=14).HRT group took compound nylestriol,Sp group took sport walking with 5 kg weight and exercise intensity was from 60% to 80% VO2max,HRT+Sp group received two treatments as HRT group and Sp group.The experimental duration consisted of six months.Results The total cholesterol(TC),TC/high density lipoprotein cholesterol(HDL-C),alkaline phosphatase(APL) and urine calcium(Ca)/creatinine(Cr) were markedly lower in three experimental groups than the control group and before experiment(P<0.05 or P<0.01),HDL-C in Sp and HRT+Sp groups were markedly higher than the control group and before experiment(P<0.05),BMD of spine(L2～L4) and left trochanter in three experimental groups were markedly higher than the control group(P<0.01) and before experiment(P<0.0).Conclusion Both estrogen replacement therapy and sport walking with weight effectively improve serum lipid,prevent and reverse osteoporosis induced by menopause in women.

Child ; Child, Preschool ; Diagnosis, Differential ; Female ; Humans ; Infant ; Lung ; diagnostic imaging ; pathology ; Lung Diseases, Interstitial ; diagnostic imaging ; pathology ; Male ; Pediatrics ; Pulmonary Fibrosis ; diagnostic imaging ; pathology ; Radiation Dosage ; Radiographic Image Enhancement ; Tomography, X-Ray Computed

Endometrial Neoplasms ; classification ; epidemiology ; mortality ; pathology ; Female ; Humans ; Uterine Cervical Neoplasms ; classification ; epidemiology ; mortality ; pathology

Acupuncture Therapy ; Acute Disease ; therapy ; Administration, Cutaneous ; Adult ; Combined Modality Therapy ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Humans ; Lactation ; Massage ; Mastitis ; drug therapy ; physiopathology ; therapy ; Young Adult

Objective To observe the effect of salvia lignstrazine combined with methylcobalamin in treatment of type 2 diabetic peripheral neuropathy.Methods From May 2010 to May 2011,112 cases of type 2 diabetic peripheral neuropathy patients were classified into two groups by random digits table,control group of 56 cases were treated with methylcobalamin and observation group of 56 cases were treated with salvia lignstrazine combined with methylcobalamin.The clinical effects,motor nerve conduction velocity (MNCV) and sensory nerve conduction velocity (SNCV) of common peroneal nerve and tibial nerve between two groups were compared.Results The total effective rate in observation group was 87.5％(49/56),which was significantly higher than that in control group [ 57.1％( 32/56 ) ] (P ＜ 0.05 ).After treatment,the levels of MNCV and SNCV of common peroneal nerve and tibial nerve were (47.89 ± 6.93 ),(49.12 ± 5.54) m/s and (43.69 ± 4.97 ),(42.35 ± 5.14) m/s in observation group,which were significantly increased compared with those before treatment,while the levels of MNCV and SNCV of common peroneal nerve and tibial nerve were (41.15 ± 4.36),(39.89 ± 3.67 ) m/s and (37.57 ± 3.08),(36.56 ± 2.81 ) m/s in control group,which had no significant difference compared with those before treatment (P ＞ 0.05 ).Moreover,the levels of MNCV and SNCV of common peroneal nerve and tibial nerve in observation group were significantly higher than those in control group (P＜ 0.05).Conclusion Salvia ligustrazine combined with methylcobalamin in treatment of type 2 diabetic peripheral neuropathy can enhance the clinical effects,and improve neurological status,and can be applied in clinic.

Chronic myeloid leukemia (CML) is a malignant clonal proliferative disease,which originates from multifunctional hematopoietic stem cells of bone marrow.Imatinib is used as the first-line treatment for CML currently,owing to its obvious curative effect for patients in chronic phase and survival time prolonged significantly for patients in accelerated phase and blast crisis.With the long-term application of imatinib in clinic,the drug resistance and intolerance gradually appear,resulting in decreased long-term effects of CML.This paper will review the current status of the pathogenesis and treatment of CML.