ObjectiveTo investigate the effect of low frequency stimulation on motor function of stroke patients.Methods50 stroke patients were randomly divided into control group and treatment group with 25 cases in each group. Patients of control group received neuromedical and Bobath technical treatment; cases of treatment group received low frequency stimulation besides the above two methods. All patients were assessed respectively with the Fugl-Meyer Assessment and Clinical Nerve Function Impaired Scale at the admission and on 20 days after treatment.ResultsThe motor functions of both groups were improved (P<0.05). But the recovery of treatment group was superior to the control group (P<0.05).ConclusionLow frequency stimulation can promote the stroke patients' motor function recovery.

Objective To investigate the influence of thiamine deficiency(TD)at early pre- pathological lesion stage on cognitive function and the correlation between cognitive dysfunction and hippocampal neurogenesis.Methods TD mouse model was prepared by feeding a thiamine-depleted diet. Learning and memory functions of TD mice were tested with Y-maze.Hippoeampal neurogenesis was studied with bromodeoxyuridine(BrdU),proliferative cell nuclear antigen(PCNA),and Doublecortin(Dcx) immunohistochemical staining on the 7th(TD7),9th,14th and TD25th day.Results TD9 mice without pathological impairment and cholinergic nerve degeneration needed more times of training(22.3?2.2)in the learning test of Y maze compared with the controls(13.5?3.5).Correspondingly,the numbers of BrdU-positive ceils and the immunoreactivity of Dcx decreased significantly in the TD9 mice(19.8?0.4, 1537.2?50.2 vs 23.9?0.3,2688.9?127.9 pixels/mm~2).Thiamine re-administration reversed the declined hippocampal neurogenesis:the number of BrdU-positive cells was 23.6?1.9 and Dcx immunoreactivity was 2052.3?269.6 pixels/mm~2:the impaired learning ability was simultaneously restored,with the number of total training trial being 16.8?0.5.Conclusion The decreased hippocampal neurogenesis contributes to retarded learning ability at early pre-pathological lesion stage of TD.

Objective To evaluate the effects of nerve growth factor (NGF)polybutylcyanoacrylate (PBCA)- nanoparticles (NP) on PC12 cells induced by Aβ1-40 Methods The emulsion polymerization method was used to prepare the NGF-PBCA-NP. Morphology of the NGF-PBCA-NP was observed by transmission electron microscopy. The entrapment efficiency and loading efficiency of NGF-PBCA-NP were measured by means of ultraviolet spectrophotometry. The effects of NGF-PBCA-NP on proliferation and cell apoptosis of β1-40-PC12 cells were observed by MTT and FCM methods. Results The NGF-PBCA-NPs were uniform spheres with drug entrapment efficiency of 80.87％ and loading efficiency of 19.88％.Compared with the cells in the NGF group,cells in the NGF-PBCA-NP group exhibited a significantly better proliferation rate and a significantly lower apoptosis rate (P＜0.05). Conclusion NGF-PBCA-NPs obtained by emulsion polymerization method are uniform in morphology and possess a high drug entrapment efficiency and a high loading efficiency.They can restrain significantly the in vitro growth of Aβ1-40-PC12.

objecfive To know and compare the intelligence level of children born in different time periods in regions with iodine deficiency disorders(IDD)in Liaoning province.Methods All 7-14 year-old children from ten schools were chosen as the subjects respectively from six villages in each of the six counties and in regions with iodine deficiency,who were respectively born at the initialization of iodinated salt supplying period(1978-1980);non-iodinated salt supplying period(1981-1990);recovery of supplied iodized salt period(1991-1995);universal iodized salt period(1996-2000),respectively.Intelligence quotient(IQ)was measured by Combined Ravens Test in China(CRT-C)and Combined Ravens Test-the Rural,in China,2nd edition(CRT-RC2).Results IQ of children during the non-iodized salt period(91.9±14.3)was significantly lower than the initial supply of iodized salt period(95.8±14.6,q=8.60,P<0.01),recovery of supplied iodized salt period(99.7±14.7)was significantly higher than the initial supply of iodized salt period, non-iodized salt sales period(q = 9.53, 18.13, all P < 0.01 ),universal salt iodization( 104.3 ± 14.9) was significantly higher than the initial supply of iodized salt period, non-iodized salt sales period, recovery of supplied salt iodization(q = 20.00,28.00,10.46, all P < 0.01). Children's rate of mental retardation (IQ≤69) was higher in non-iodinated salt supplying period (6.7%, 88/1314 ) than the initial supply of iodized salt (4.4%, 21/471, χ2 = 3.85, P < 0.05), recovery of supplied iodized salt period(3.3%,48/1470) was significantly lower than non-iodinzed salt supplying period (χ2 = 15.37, P < 0.01), universal salt iodization period(2.7%, 36/1344) was lower than the initial supply of iodized salt period(χ2 = 4.41, P < 0.05) and non-iodinzed salt supplying period(χ2 = 26.34, P < 0.01 ). The IQ and intelligent retarded rates in children born during the initial years of iodinated salt supplying period were not different. The IQ of the children during ten years of non-iodized salt supplying period fluctuated in a "∪" curve, while the intelligent retardation rates in a "∩" curve.The children born during the period of recovery supplied iodized salt increased their IQ and lowered the retardation rates year after year. The IQ of the children in universal iodized salt period kept on increasing while intelligent retarded rates reduced to the lowest level. Conclusions The intelligence level of children born in regions with IDD during non-iodized salt supplying period is remarkably lower than that of the beginning years of iodinated salt supplying period. The intelligence level of children born after universal iodized salt period is remarkably higher than that of the initial iodinated salt supplying period and recovery of supplied iodized salt period, respectively.

OBJECTIVETo study the situation of 1- 5-years-old children's antibody against Coxsackievirus A group 16 strain (CVA16) in Guangdong, Heilongjiang,Yunnan Province and Xinjiang Uygur Autonomous Regions, China, 2005, it can offer scientific evidences for preventing and controlling CVA16 causative hand-food and mouth disease.

METHODSUsing microneutrilization test, to study 503 serum samples randomly selected from sera collected in 2005.

RESULTSPositive rate of anti-CVA16 antibody were 41.90%, 9.40%, 40.00% and 34.40% in Guangdong, Heilongjiang,Yunnan and Xinjiang, respectively. Antibody titer was relative low (average, 1: 6.1) and there was no statistical difference of geometry mean of antibody titer (GMT) among Guangdong, Heilongjiang, Yunnan (F = 0.97, 0.40, 1.06, respectively; P > 0.05), while there had statistical difference of GMT between Heilongjiang and other three regions( F = 10.61, P < 0.00).

CONCLUSIONSThere had probably existed local epidemic in some regions of Guangdong, Heilongjiang, Yunnan Province and Xinjiang Uygur Autonomous Regions, China, 2005 or even before, but the area and degree of transmission and epidemic had difference. Children aged from 1- 5-years-old were relatively susceptible population of CVA16 infection.

Antibodies, Viral ; blood ; China ; epidemiology ; Enterovirus A, Human ; immunology ; isolation & purification ; Enterovirus Infections ; epidemiology ; immunology ; Female ; Humans ; Infant ; Male ; Seroepidemiologic Studies

OBJECTIVESTo investigate the possibility and efficacy of vasoligation and deferent vein ligation in treating and preventing benign prostatic hyperplasia(BPH).

METHODS40 male pooches were divided into A, B, C and D groups randomly. Each group has 10 pooches group A and B were made into the model of BPH. Two years later, the pooches in group A and C accepted the operation of vasoligation and deferent vein ligation on both sides. Group B and D only accepted the operation of dissection and relieving its deferent duct. Then continuing to feed the 40 pooches after the operation, they were killed another two years later. After taking out their prostates and calculating their volume and weight, the sections of the prostates were checked by microscope to observe their histology and pathology changes.

RESULTSThere were significant differences of weight and volume as well as the changes of histology and pathology between group A and group C (P < 0.01). It was the same with group B and D (hyperplasia changes).

CONCLUSIONSVasoligation and deferent vein ligation before benign prostatic hyperplasia at pooches grow-up stage can reduce the extent of BPH at old age, and treatment after benign prostatic hyperplasia can make prostatic tissue appear different degrees of atrophy.

Animals ; Disease Models, Animal ; Dogs ; Ligation ; Male ; Prostatic Hyperplasia ; prevention & control ; therapy ; Vasectomy

OBJECTIVEClinical application of autologous fat grafting (AFG) is quickly expanding. Despite the widely acceptance, long-term survival rate (SR) of AFG remains a question not yet solved. Meanwhile, although rare, severe complications related to AFG including vision loss, stroke even death could be seen in the literature.

DATA SOURCESA comprehensive research of PubMed database to June 2013 was performed according to guidelines of the American Society of Plastic Surgeons Fat Graft Task Force Assessment Methodology. Articles were screened using predetermined inclusion and exclusion criteria.

STUDY SELECTIONData collected included patient characteristics, surgical technique, donor site, recipient site, graft amount, and quantified measurement methods. Patient cohorts were pooled, and SR was calculated. All the severe complications were also summarized according to the different clinical characteristics.

RESULTSOf 550 articles, 16 clinical articles and 10 animal studies met the inclusion criteria and provided quantified measurement methods. Totally, 596 patients were included. SR varied from 34% to 82% in breast and 30-83% in the facial area. Nude mice were applied to investigate human fat grafting SR (38.3-52.5% after 15 weeks). Rabbits were commonly used to study animal AFG SR (14.00-14.56% after 1-year). Totally, 21 severe complications were reported, including death (2), stroke (10), vision loss (11, 8 of which accompanied with stroke), sepsis (3), multiple abscess (1) and giant fat necrotic cyst (2). Ten of these complications happened within 10 years.

CONCLUSIONSThere is no unified measurement method to evaluate fat graft SR until now and no clinical evidence to show better SR according to different donor and recipient cite. Body mass index change between pre- and postoperation may be the bias factor in evaluating fat SR. Fat embolisms of the ophthalmic artery and the middle cerebral artery are the most severe complication of AFG and still lack of effective treatment.

Adipose Tissue ; transplantation ; Animals ; Autografts ; Humans ; Survival Rate

Ginger, one of worldwide consumed dietary spice, is not only famous as food supplements, but also believed to exert a variety of remarkable pharmacological activity as herbal remedies. In this study, a ginger constituent, 12-dehydrogingerdione (DHGD) was proven that has comparable anti-inflammatory activity with positive control 6-shogaol in inhibiting LPS-induced interleukin (IL)-6, tumor necrosis factor (TNF)-α, prostaglandin (PG) E₂, nitric oxide (NO), inducible NO synthase (iNOS) and cyclooxygenase (COX)-2, without interfering with COX-1 in cultured microglial cells. Subsequent mechanistic studies indicate that 12-DHGD may inhibit neuro-inflammation through suppressing the LPS-activated Akt/IKK/NF-κB pathway. Furthermore, 12-DHGD markedly promoted the activation of NF-E2-related factor (Nrf)-2 and heme oxygenase (HO)-1, and we demonstrated that the involvement of HO-1 on the production of pro-inflammatory mediators such as NO and TNF-α by using a HO-1 inhibitor, Zinc protoporphyrin (Znpp). These results indicate that 12-DHGD may protect against neuro-inflammation by inhibiting Akt/IKK/IκB/NF-κB pathway and promoting Nrf-2/HO-1 pathway.
Dietary Supplements ; Ginger ; Heme Oxygenase (Decyclizing) ; Interleukins ; Microglia* ; Nitric Oxide ; Nitric Oxide Synthase ; Prostaglandin-Endoperoxide Synthases ; Spices ; Tumor Necrosis Factor-alpha ; Zinc

Objective:To explore the abnormal gray matter volume regions of brain and the developmental characteristic of abnormal regions in patients with high functioning autism during 6-18 years old.Methods:The study enrolled 19 patients and 16 age,sex and intelligent quotient matched normal controls.The patients met the diagnostic criteria of autism in the Diagnostic and Statistical Manual of Mental Disorders,Fourth Edition.The full scale intelligence quotients of patients and normal controls were greater than or equal to 70.The magnetic resonance imaging (MRI) was used to collected brain images.Voxel-based morphometry was used to process the MRI images and two sample t-test in Statistical Parametric Mapping-8 (SPM8) was used to analyze differences between the two groups in gray matter volume of brain.The results were controlled with false discovery rate (FDR) multiple comparison correction (P ＜ 0.05).Partial correlative analysis was performed to examine correlation between gray matter volume of abnormal brain region and age in two groups.Results:Compared with normal controls,patients with high functioning autism during 6-18 years old exhibited smaller gray matter volume at right inferior orbital frontal (P ＜ 0.05,FDR corrected).In patients with high functioning autism,the volume of right inferior orbital frontal was negatively correlated with age(r =0.70,P ＜0.01).The negative correlation between the volume of right inferior orbital frontal and age was also found in normal controls(r =-0.59,P ＜ 0.05).Conclusion:It suggests that right inferior orbital frontal of brain is abnormal in patients with high functioning autism during 6-18 years old.The fight inferior orbital frontal may be significant for pathological mechanism of autism.

OBJECTIVE: To study the application value of multi-slice computed tomography (MSCT) and 3D reconstruction in biomechanical analysis of traffic accidents in forensic medicine. METHODS: Based on a real case, the tomoscan images were obtained from a corpse by MSCT scanning. The 3D images were reconstructed. The biomechanic process of injury manners of impacting, rolling and crushing in traffic accidents was analyzed together with autopsy, vehicle inspection, etc. The MSCT results were compared with the autopsy results. RESULTS: Some characters in situ including the part of fracture on different site that suffered by force from different directions, trends of fracture line, and status of smash inner bones were obtained trough MSCT and 3D reconstruction. Some details like fracture were even better than those from autopsy. CONCLUSION MSCT and 3D reconstruction have some advantages such as in situ reconstruction, easily controlled image and fully conserved evidence. It may be a supplementary method and have a directive function for the biomechanical analysis of traffic accidents.
Accidents, Traffic ; Adult ; Automobiles ; Autopsy/methods* ; Biomechanical Phenomena ; Bone and Bones/injuries* ; Craniocerebral Trauma/pathology* ; Female ; Forensic Pathology ; Fractures, Bone/diagnostic imaging* ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional/methods* ; Tomography, Spiral Computed/methods* ; Wounds and Injuries/pathology*