China ; Conservation of Natural Resources ; Electricity

In order to determine the suitable harvest time of Dendrobium officinale from different regions in Yunnan province, the drying rate, mannose and glucose peak area ratio, extract, contents of polysaccharide and mannose of D. officinale samples collected from six producing areas in Ynnnan province were determined. The results indicate that drying rate and the contents of polysaccharide and mannose arrived the peak from January to April, extract reached a higher content from September to December, and mannose and glucose peak area ratio from October to February of the coming met the requirment of the Chinese Pharmacopoeia. Hence, the suitable harvesting time of D. officinale in Yunnan province is from December to February of the coming year,according to the experimental results and the request of the Chinese Pharmacopoeia.
China ; Dendrobium ; chemistry ; growth & development ; metabolism ; Glucose ; analysis ; metabolism ; Mannose ; analysis ; metabolism ; Time Factors

Objective To investigate the diagnostic significance of the difference values between Mini-Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA)in elderly patients with dementia.Methods 331 elderly patients with dementia were collected from outpatients in our hospital.There were 148 people with Alzheimer's disease (AD),87 cases with vascular dementia (VaD),44 cases with mixed dementia (MD),41 cases with frontotemporal dementia (FTD) and 11 cases with dementia with Lewy bodies (DLB).MMSE and MoCA were applied to test the cognitive impairment separately.Results The difference values between MMSE and MoCA was (3.3±1.7) points,(6.6±2.1) points,(6.6±2.1) points,(5.4±2.3) points,(6.1 ± 1.9) points in AD,VaD,MD,FTD and DLB group respectively,and there were statistical differences among the five groups (F=46.420,P=0.000).Statistical differences were found in the difference values between MMSE and MoCA between dementia patients with AD and non-AD (t=-13.429,P=0.000).According to receiver operating characteristic curve (ROC curve),the optimal cut off point of the difference values between MMSE and MoCA for differential diagnosis between AD and non-AD dementia was 5 points,with 79.8％ sensitivity and 78.4％ specificity,and area under the curve was 0.848 (95％CI:0.807-0.890).Conclusions The difference values between MMSE and MoCA may be one of parameters for differential diagnosis between AD and non-AD dementia.

Objective To research the effects of transcutaneous electrical stimulation (TES) on the expression of neurotrophin-3 (NT-3) and tumor necrosis factor-α (TNF-a) in the ventral horn of rats' spinal cords and in the injured region after spinal cord injury (SCI),and to explore the effects of TES on neuron reconstruction and functional recovery and their mechanisms. Methods Forty-eight Wistar rats were selected and divided using stochastic methods into a model group and a TES group.Using Allen's method,a complete SCI model was created at T9.Rats of the TES group were given TES treatment.Basso-Beattie-Brasnahan ( BBB ) ratings were used to evaluate locomotor function.Both groups were sampled at 1,3,5 and 7 days after the operation.Immunohistochemical techniques were used to detect the expression of NT-3 and TNF-α in the rats' spinal cords at the different time points. Results The post-operative BBB ratings of both groups showed an increasing trend.In the TES group the improvement was significantly better at 5 and 7 days than in the model group.The expression of NT-3 immuno-positive cells increased in both groups,peaking at 5 days post-operation,then declining at day 7.The expression of NT-3 positive cells at days 5 and 7 had increased significantly more in the TES group than in the model group.TNF-α immuno-positive expression increased with time in both groups,but in the TES group the expression increased substantially less than in the model group.At days 5 and 7 post-operation,the expression was significantly lower than in the model group. Conclusions TES can promote NT-3 expression in rats with SCI,inhibit the increase in TNF-α expression,and aid repair and reconstruction of neurons and related functional recovery.

ObjectiveTo explore the optimal method of protecting bone marrow in postoperative concurrent chemoradiotherapy of stage Ⅱ - Ⅲ rectal cancer by comparing two techniques of intensitymodulated radiotherapy (IMRT). MethodsFifteen patients with stage Ⅱ - Ⅲ rectal cancer after surgery had CT simulation. Clinical target volume, small bowel, bladder and bone marrow were contoured. Two IMRT treatment plannings with and without bone marrow-sparing (BMS-IMRT and IMRT) were separately designed. The dose distribution was compared based on that 95％ of the planning target volume received the prescribed dose. ResultsBMS-IMRT had an advantage over IMRT in terms of conformity indices ( 1. 06∶1. 04, t =- 2. 61, P =0. 023 ), but inferior to I M RT for homogeneity indices ( 0. 81 : 0. 75, t =- 2. 34, P =0.037)).Compared with IMRT, BMS-IMRT reduced the V5, V10, V20, V30, V40 of bone marrow (97.09％∶98.72％, t=-2.34, P=0.037;92.38％∶96.46％, t=-2.41, P=0.033;83.36％∶91.70％, t=-3. 18, P=0.008;51.47％∶69.65％, t=-4.92, P=0.000;36.34％∶49.57％, t=-2.66, P =0. 021 ). The doses received by small bowel and bladder were similar between BMS-IMRT and IMRT, except that the V20 of bladder was lower in BMS-IMRT (77. 32％∶92. 39％, t =-3.52, P=0. 004). Conclusions BMS-IMRT reduces low dose volume of bone marrow without increasing dose to other risk organs.BMS-IMRT might reduce acute hematologic toxicity and increase the feasibility of postoperative concurrent chemoradiotherapy in stage Ⅱ -Ⅲ rectal cancer.

Base Sequence ; Child, Preschool ; Humans ; Male ; Point Mutation ; Polymerase Chain Reaction ; Puberty, Precocious ; genetics ; Receptors, LHRH ; genetics ; Sequence Analysis, DNA ; Testosterone ; blood

Adult ; Aluminum Silicates ; toxicity ; Humans ; Middle Aged ; Mining ; Occupational Exposure ; Prevalence ; Silicosis ; epidemiology

Cardiomyopathies ; congenital ; Heart Ventricles ; pathology ; Humans ; Infant, Newborn ; Male ; Myocardium ; pathology

OBJECTIVETo explore the optimized rehabilitation program in the treatment of post-stroke hemiplegia at the recovery stage.

METHODSBased on the randomized controlled principle, 60 patients were randomized into an rehabilita tion + massage group (group A) and an rehabilitation + acupuncture group (group B), 30 cases in each one. Bobath sport therapy and functional training were adopted in the two groups. In the group A, the massage therapy was added. The rolling method and palm-rubbing method were used on the affected side, the pressing, kneading and plucking methods were applied to Jianliao (LI 15), Jianzhen (SI 9), Quchi (LI 11), Huantiao (GB 30), Weizhong (BL 40), Chengshan (BL 57), Zusanli (ST 36) and the other acu points; and the nipping method was adopted at the twelve Jing-well points. In the group B, acupuncture was applied to Baihui (BL 20), Jianliao (LI 15), Quchi (LI 11), Shousanli (LI 10), Huantiao (GB 30), Yanglingquan (GB 34), Jiexi (ST 41) and the other acupoints. The treatment was given once a day, 5 treatments a week in the two groups. The efficacy was evaluated in 3 weeks. Fugl-Meyer scale, Barthel index (BI) score, modified Rankin scale and stroke-specific quality of life (SS-QOL) were used to assess the limb motor function, the activity of daily life (ADL), independent activity of life and the quality of life of the patients in the two groups before and after treatment. Based on the total cost and benefit, the health economics evaluation was conducted in the patients of the two groups.

RESULTSThe treatments all improved the limb motor function (group A: 26.00 (22) vs 37.00 (33); group B: 30.50 (21) vs 39.50 (36)), the independent activity of life, ADL (group A: 43.50 +/- 22.25 vs 57.50 +/- 22.25; group B: 52.83 +/- 16.59 vs 66.67 +/- 12.82) and the quality of life (group A: 122.23 +/- 30.00 vs 145.50 +/- 28.14; group B: 132.43 +/- 23.87 vs 151.47 +/- 22.37) in the patients of the two groups. The differences in all the indices were significant statistically before and after treatment in the two groups (all P<0.05). Above indices after treatment were not different obviously between the two groups (all P>0.05). In terms of health economics, the expense was decreased by RMB 688.48 while BI was increased by every 5 score in group A in comparison with the group B.

CONCLUSIONBoth the rehabilitation and massage therapy and the rehabilitation and acupuncture therapy improve the limb motor function and the quality of life in the patients of post-stroke hemiplegia. The therapeutic efficacies are similar between the two therapeutic programs. The program of rehabilitation and massage is more economical in the aspects of ADL improvement, being advantageous at simple operation and low cost.

Acupuncture Therapy ; Aged ; Combined Modality Therapy ; Female ; Hemiplegia ; physiopathology ; rehabilitation ; therapy ; Humans ; Male ; Massage ; Middle Aged ; Motor Activity ; Stroke ; complications ; Treatment Outcome

Objective To explore the effectiveness and safety of deep brain magnetic stimulation technique (dTMS) for treatment of Alzheimer's disease (AD).Methods Totally 116 patients with AD were randomly divided into 4 groups:(1) dTMS:given dTMS really stimulation therapy,(2)medication group:treatment with donepezil 5 mg/d,(3) combination treatment group:given dTMS and donepezil therapy,(4) blank control group:given pseudorandom stimulation treatment.33 healthy control cases were given dTMS's stimulation treatment.The treatment course was 6 months.Application of mini mental state examination scale (MMSE),the Montreal cognitive assessment scale (MoCA),Hamilton Depression Scale (HAMD),ischemic scale (HIS),Boston naming test,activity of daily living(ADL) and neuropsychological questionnaire (NPI) were used to evaluate the cognitive function.All the participants received blood tests and ECG in order to evaluate the safety of dTMS.Results After 6 months treatment,compair with the blank control group,all scale scoresof dTMS group,medication group and combined treatment group were improved significantly in MMSE (t=2.49,2.46,2.20),MoCA(t=2.59,2.39,2.87),ADL(t=2.35,2.17,2.83),NPI(t=3.05,2.40,2.65) and sub-cognitive scale score (all P＜0.05).All scale scores of combination treatment group were better than dTMS group and medication group (P＜0.05).There's no significant difference between drug treatment groups and dTMS group (P＞0.05).After 6 months treatment,compared with healthy control group,the scale scores were aggravated in 4 groups of AD (P＜0.05)Conclusions dTMS can be effective and safe in the treatment of AD patients with cognitive and noncognitive symptoms.