Objective To observe the changes of the peripheral blood T lymphocyte subsets following acute spinal cord injury and investigate the possible mechanism of these changes. Methods The SCI models of rats were made by Allen's method. Forty SD rats were divided into four groups, ie,normal control group, sham operation group, 100 g·cm group and 200 g·cm group. The expressions of CD4 and CD8 subsets of the peripheral blood T lymphocyte of the injured rats were determined by immunofluorescence labelling and flow cytometry at different times after injury. Results It was found that the expression of CD4 was significantly reduced to (30.40±4.76)% in 100 g·cm group and to (26.54± 9.34) % in 200 g·cm group, which were significantly lower than that of normal control group ( P ＜0.01 ). At 36 hours after injury, the ratio of CD4/CD8 was significantly reduced to 1.81 ± 0.55 in 100 g·cm group and and 1.29 ± 0.50 in 200 g·cm group, with statistical difference (P ＜ 0.05).Conclusions The immunoreaction is significantly depressed at the early stage of acute spinal cord injury. The severer injury results in more significant decrease of CD4 and ratio of CD4/CD8. The changes of CD4 and CD4/CD8 ratio can be used to indicate the severity of spinal cord injury.

BACKGROUND: Bone and exact reduction and internal fixation should be kept to fully repair the function of patella in comminuted patellar fracture operation. Currently, comminuted patellar fracture without a unified therapeutic standard has been a difficulty in clinic.OBJECTIVE: To compare the effects of modified AO tension band, titanium cable cerclage and nickel-titanium (Ni-Ti) patellar concentrator fixation in the treatment of comminuted patellar fracture.DESIGN: Prospective comparative observation.PARTICIPANTS: Totally 60 patients with simple unilateral closed comminuted patellar fracture were enrolled at Department of Orthopaedics of Changzheng Hospital from November 2004 to November 2006, including 32 males and 28 females aged 28-59 years. Inclusive criteria contained diagnosis of having simple unilateral closed comminuted patellar fracture and injury timing of less than 7 days. The patients all signed the informed consent.METHODS: The patients were assigned into modified AO tension band group (n =22), titanium cable cerclage group (n = 21) and Ni-Ti patellar concentrator group (n =17) according to their will. Twelve patients in the modified AO tension band group received simple modified AO tension band internal fixation, and ten received modified AO tension band internal fixation and extraction. Patients in the titanium cable cerclage group received titanium cable cerclage. Ten patients in the Ni-Ti patellar concentrator group received simple Ni-Ti patellar concentrator internal fixation, and seven received internal fixation and extraction.MAIN OUTCOME MEASURES: ①Postoperative host and material reaction, intraoperative blood loss, medical cost and workday loss, and ②active range of knee motion at month 3 after operation and functional recovery and curative effect at month 6 after operation.RESULTS: Totally 60 patients were involved in the result analysis. ①Host and material reaction was not found in all patients. Blood loss was significantly more in the patients of simple Ni-Ti patellar concentrator internal fixation group than patients of simple modified AO tension band internal fixation group and titanium cable cerclage group, whereas workday loss was less than that of the simple modified AO tension band internal fixation group (P < 0.05). Medical cost was obviously more in the titanium cable cerclage group than the simple Ni-Ti patellar concentrator internal fixation group and the simple modified AO tension band internal fixation group (P < 0.05). ②Active range of knee motion was the largest, about mean 108°, and long-term functional score of injured knee was the highest, about mean 21.3 points, with the excellent and good rate of 95.2%, and no sever complication appeared in the titanium cable cerclage group. These were much better than those of the other groups (P < 0.05).CONCLUSION: Modified AO tension band fixation and patellar concentrator fixation in the treatment of comminuted patellar fracture have excellent effects in some patients. Titanium cable cerclage fits for the treatment of comminuted patellar fracture and has better recovery of knee joint function.

Objective To investigate the changes of extracellular histones during the course of acute liver failure in mice as well as its therapeutic potential.Methods WT mice (C57BL/6) were randomly (random number) allocated to inducing acute liver failure by lethal doses of GalN/LPS injected i.p.Hepatic function,apoptosis of hepatocytes and histological indexes were measured at different intervals following GalN/LPS challenge.The levels of extracellular histones were determined by using ELISA and Western blot methods.Meanwhile,GalN/LPS-treated mice were administered with anti-histone H3 and antihistone H4 neutralized antibodies,respectively.Results Administration of GalN/LPS to mice caused acute liver failure,characterized by significant elevation of plasma ALT levels and massive hepatocyte apoptosis or necrosis.All mice died within 9-12 hours.The levels of nucleosomes and extracellular histones H3 and H4 were increased considerably in a time-dependent manner.The survival rates in GalN/LPS-treated mice were improved remarkably following administration of anti-histone H3 and H4 neutralized antibodies (P =0.037,P =0.025),likely due to the significant inhibition of TNF-production.Conclusions Extracellular histones are an important mediator implicated in the pathogenesis of acute liver failure.Anti-histones show promising potential in the treatment of acute liver failure,which deserves further investigation in the future.

Background As one of the most common microvascular complication of diabetes in eyes,diabetic retinopathy (DR) is one of the most important cause of blindness.Nuclear factor-kappa B (NF-κB) is involved in the occurrence and development of the disease through the activation of a series of inflammatory cytokines.Objective The present study was to investigate the effects of peroxisome proliferator-activated receptor-gamma (PPAR-γ) excitomotor,rosiglitazone,on NF-κB expression and apoptosis of the retinal ganglion cells (RGCs) in the retina with diabetes mellitus. Methods Ninety SPF male Wistar rats were randomized into normal control group,diabetic control group and rosiglitazone group.Diabetes mellitus was induced by intraperitoneal injection of 50 mg/kg streptozotocin(STZ).Then 3 mg/kg rosiglitazone was intragastricly administered once per day in the rosiglitazonegroup,and the same volume of saline solution was used at the same way in the normal control group and diabetic control group from 3 days after modeling.The rats were sacrificed and the eye cups specimen was made at 4,8 and 12 weeks after usage of drugs.Retinal histopathological examination was performed by hematine-eosin staining,and expression of NF-κB p65 protein in retina and apoptotic index(AI) of RGCs were detected by immunohistochemistry and TUNEL assay,respectively in different time points mentioned above.The use of the animals complied with the Regulations for the Administration of Affairs Concerning Experimental Animals by State and Technology Commission.Results The blood glucose level was significantly elevated at various time points in the diabetic control group and rosiglitazone group compared with normal control group (P＜0.01 ),and that of the rosiglitazone group was significantly declined in comparison to the diabetic control group (q =0.81,0.82,1.23,P＞ 0.05 ).Normal retinal structure was seen in the normal control group,and edema retinal cell and disorder of retinal layers were exhibited in the diabetic control group.Retinal structure was almost normal in the rosiglitazone group.The NF-κB p65 was expressed weakly in the retina of normal control group,but the expression of NF-κB p65 was significantly elevated in the diabetic control group and rosiglitazone group compared with the normal control group(P＜0.01 ).However,the expression of NF-κB p65(A value)was significantly decreased in the rosiglitazone group compared with diabetic control group at 8 weeks and 12 weeks( q=17.77,15.30,P＜0.01 ).There were a few apoptotic cells in rat retina of the normal control group.Compared with the normal control group,the AI of the diabetic control group and rosiglitazone group was significantly reduced(P＜0.01 ).However,the AI of RGCs in the rosiglitazone group was significantly lower than that of diabetic control group in various time points (q =19.28,27.39,49.92,P＜0.01 ). Conclusions As one of the PPAR-γexcitomotors,rosiglitazone can inhibit apoptosis of RGCs through downregulating the expression of NF-κB in rat retina with diabetes mellitus,indicating a protective effect of rosiglitazone on retina in diabetic rat.

Abstract? AIM: To evaluate the efficiency of two different operation ways, vitrectomy and vitrectomy combined with inferior scleral buckling, for a complex kind of retinal detachment.?METHODS:The complex kind of retinal detachment were diagnosed in 100 cases ( 100 eyes ) , with the common features:1)the course of more than 1mo;2) at least one retinal hole located in the inferior marginal retina;3) the detachment of retina was found proliferated, there was at least 1 retinal fold in retinal detachment area. The patients were randomly divided into two groups: the treatment group ( 50 eyes ) who received vitrectomy combined with inferior scleral buckling;the control group ( 50 eyes ) who received vitrectomy without scleral buckling. The retinal anatomic reattachment, visual function recovery, macular central fovea thickness and complications in two groups were observed.? RESULTS: There were 49 eyes ( 98%) with retinal anatomic reattachment in the treatment group while 42 eyes(84%)in control group(χ2=4.2605, P<0.05);the best corrected visual acuity ( BCVA) was 0.254 ±0.238 in the treatment group while it was 0.219±0.229 in control group (t=1.8879,P>0.05);the macular central fovea thickness was 272 ±32.21μm in the treat group while it was 316 ± 33.46μm(t=12.597,P<0.01).Intraocular pressure in 12 eyes ( 24%) was more than 30mmHg in the treatment group while 4 eyes ( 8%) in control group within 1wk postoperation (χ2=4.7619,P<0.05); intraocular pressure in 100 eyes were controlled below 21mmHg 1mo postoperatively.? CONCLUSION: It is a more effective method to vitrectomy combined with inferior scleral buckling than the single vitrectomy for the special kind of retinal detachment.It can increase the rate of retinal anatomic reattachment and reduce macular edema.

2cm~2.Conclusions The auto-cranial pedicle flap via endonasal repairing blow-out fractures of or- bital inferior wails is an effective technique.The results are good for improving eye movement especially for fracture ranged≤2cm~2. (Ophthalmol CHN,2007,16:388-390)

Objective To explore the humanistic care in the treatment of esophageal cancer patients, reducing surgery anxiety,fear,eliminate the negative psychology,reduce complications and promote early recovery.Methods We continuously strengthened the ideological education of nurses in our hospital and gave psychological preoperative care and enthusiastic postoperative care to 76 esophageal cancer patients since November 2008.then the nursing effect was observed.Results 74 cases(97.37%) surgery patients did not suffer a variety of complications due to emotional tension and fear,they kept quiet and stable vital signs during the operation.Postoperative follow-up showed 75 patients(98.68%) were satisfied with the service.Conclusions Application of humanistic care in patients with esophageal cancer throughout the nursing process can make patients feel the warmth of human caring,so as to reduce anxiety,fear and take the initiative with the operation.It is crucial for the entire success of the operation.

OBJECTIVETo explore the effect of salvia injection (SI) combined with composite amino acid (CAA) in treating fetal growth restriction (FGR).

METHODSA retrospective analysis was conducted on 106 pregnant women with FGR hospitalized from January 2007 to January 2008. Patients were randomized into 2 groups equally, the treated group (53 cases) treated with SI plus CAA, and the control group treated with CAA alone, all for 7 days. The clinical effect and umbilical blood flow (S/D) in patients were observed.

RESULTS(1) The total effective rate in the treated group was 81.13%, it was 88.80% (16/18) for patients in the gestation period of 24+ -28 weeks, 80.00% (12/15) for those of 28+ -32 weeks, and 75.00 (15/20) for 32+ -36 weeks, while in the control group, the corresponding rates were 69.81%, 77.77% (14/18), 66.66% (10/15), and 65.00% (13/20), respectively. The difference between the two groups was significant (P < 0.05). (2) After treatment, S/D significantly lowered in patients of the treated group (P < 0.05, P < 0.01), no matter how long the gestation period was, but it was insignificantly changed in the control group.

CONCLUSIONThe combined treatment with SI and CAA on FGR could improve the condition of the fetus.

Adult ; Amino Acids ; therapeutic use ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Fetal Growth Retardation ; drug therapy ; Gestational Age ; Humans ; Infusions, Intravenous ; Phytotherapy ; Pregnancy ; Retrospective Studies ; Salvia miltiorrhiza ; chemistry ; Young Adult

OBJECTIVETo evaluate the therapeutic effect of compound salvia injection combined with ursodeoxycholic acid (UDCA) in treating pregnant women with intrahepatic cholestasis (ICP) and its influence on perinatal babies.

METHODSOne hundred and twenty-eight patients of ICP were assigned to two groups. The 72 patients in the treatment group were treated with salvia injection (20 mL in 10% glucose 500 mL for intravenous dripping once a day) and UDCA (15 mg, thrice daily by oral taken), and the 56 patients in the control group were treated with UDCA alone, all were treated for 14 days. Changes of itching symptom (estimated by scoring) and serum levels of biochemical indexes, including alanine aminotransferase (ALT), aspartate aminotransferase (AST), bilirubin (TBil) and glycocholic acid (GCA), were determined before and after treatment, and conditions of the newborns were compared after delivery.

RESULTSCompared with before treatment, scores of itching were lowered from 3.6 scores to 1.4 scores in the treatment group, and from 3.4 scores to 1.6 scores in the control group, showing no significant difference between groups (P > 0.05), but the lowering was shown earlier in the former. Levels of biochemical indexes were improved significantly (P < 0.01) in both groups, but the improvements were more significant in the treatment group, the difference between groups was significant (P < 0.05). The difference between groups in the incidence of fetal distress, meconium-stained fluid and neonatal asphyxia were insignificant (P > 0.05). The birth weights of the newborns were higher in the treatment group than in the control group (3,108 +/- 236 g vs 2,681 +/- 269 g, P < 0.05).

CONCLUSIONThe combined therapy of compound salvia injection and UDCA shows better effect in treating ICP than that of UDCA alone.

Adult ; Cholestasis, Intrahepatic ; therapy ; Combined Modality Therapy ; Female ; Humans ; Medicine, Chinese Traditional ; methods ; Phytotherapy ; Pregnancy ; Pregnancy Complications ; therapy ; Pregnancy Outcome ; Salvia miltiorrhiza ; chemistry ; Ursodeoxycholic Acid ; therapeutic use ; Young Adult

OBJECTIVETo discuss the relations of dental fluorosis and the social economic status in fluorosis-stricken villages where drying the corn by burning coal was prevail.

METHODSA total of 6 fluorosis-endemic villages and one non-endemic village were involved in the study. The general fluorine intake and the concentrations of fluorine in corn, in the pupils' were tested. Dental fluorosis among the pupils was also examen. A individual interview or household questionnaire survey was conducted to probe the economic condition and staple food structure in 600 adults.

RESULTSThe fluorosis prevalence was lower in the villages of transportation convenience, higher income, less coal-dried corn intake. There was a declining trend of dental fluorosis in the corresponding age groups (r: 0.912, 0.916; P < 0.05); There was no significant changes in age-specified dental fluorosis in the low income villages. The correlation (r) of corn fluorine concentration and student's age-specified dental fluorosis prevalence and disparity was 0.755 - 0.980 (P < 0.05) and 0.302 - 0.811; The urine fluorine concentrations were 0.811 and 0.915 (P < 0.05). It was assumed that there was a negative correlation between family cash income and the dental fluorosis.

CONCLUSIONSThe corn fluorine concentration is closely related to age-specified dental fluorosis. With the economic improvement, taking less coal-burned corn is the one of major factors in reducing the of dental fluorosis in these areas.

China ; Coal ; Factor Analysis, Statistical ; Feeding Behavior ; Fluorine ; analysis ; urine ; Fluorosis, Dental ; economics ; epidemiology ; Humans ; Rural Population ; Zea mays