OBJECTIVETo explore clinical effectiveness of internal fixation and semi-shoulder arthroplasty in treating proximal humerus comminuted fractures in elderly.

METHODSFrom October 2009 and October 2011, 32 patients aged over 60 years old with three and four-part fractures of proximal humeral were treated with internal fixation (20 cases) and semi-shoulder arthroplasty (12 cases). In internal fixation group, there were 6 males and 14 females aged from 63 to 82 years old (ranged, 71.50 +/- 5.45), 8 cases with three-part fracture and 12 cases with four-part fracture, and treated with open reduction and locking plate internal fixation. While in semi-shoulder arthroplasty group, there were 4 males and 8 females aged from 61 to 85 years old (ranged, 72.80 +/- 6.80), 5 cases with three-part fracture and 7 cases with four-part fracture, and treated with semi-shoulder arthroplasty. Postoperative complications were observed, EQ-5D was used to evaluate quality of life, and Constant-Murley score was used to assess functional outcomes.

RESULTSAll patients were followed up from 12 to 24 months with an average of 18 months. All injuries were healed at stage I . Two cases in internal fixation group occurred severe complications, including 1 case with screw fracture, 1 case with avascular necrosis of humeral head. EQ-5D in interal fixation group and semi-shoulder arthroplasty group were respectively 0.65 +/- 0.12, 0.67 +/- 0.12, Constant-Murley score respectively was 63.20 +/- 11.35 and 66.80 +/- 11.96, and with no statistical meaning between two goups (P>0.05).

CONCLUSIONThere is no difference in qulity of life and functional recovery for the treatment of proximal humerus comminuted fractures by open reduction and internal fixation and semi-shoulder arthroplasty. However, the complication rate in semi-shoulder arthroplasty was lower than that of internal fixation group.

Aged ; Aged, 80 and over ; Arthroplasty ; methods ; Case-Control Studies ; Female ; Fracture Fixation, Internal ; methods ; Fractures, Comminuted ; surgery ; Humans ; Humeral Fractures ; surgery ; Male ; Middle Aged ; Shoulder Fractures ; surgery ; Treatment Outcome

OBJECTIVETo compare the efficacy between eccentric fixation and internal fixation for treatment of intertrochanteric fractures of femur,to provide a theoretical basis for the selection of the treatment method of the intertrochanteric fractures of femur.

METHODSFrom February 2007 to January 2010,82 patients with femoral intertrochanteric fracture were treated by internal fixation including 39 cases of eccentric fixation involving 23 males and 6 females, aged from 41 to 81 years old with an average of (62.68±10.69), using the DHS or proximal femoral locking plate; 43 cases of intramedullary fixation involving 15 males, 28 females,aged from 43 to 78 years old with an average of (62.60±8.37),using PFN or PFNA fixed. The surgical incision length, operative time, blood loss and postoperative Harris score between two groups were compared.

RESULTSThe wound of two groups were primary healing without operative complications. All cases received follow-up for an average time of 18.3 months (12 to 28 months). The incision length, operative time and blood loss had a statistically significant difference between two groups (P<0.05). Harris scores of hip joint function at 1 month after operation had statistically significant difference between two groups (P<0.05), and Harris scores at 12 months after operation had no statistical significance difference between two groups. The rate of excellent and good was 89.7% in eccentric fixation group and 90.7% in intramedullary fixation group,the difference was not statistically significant (t=0.0613, P>0.05). In eccentric fixation group, there was 1 case of fracture nonunion with DHS loose and ensuing hip varus deformity. In intramedullary nail fixation group, there was no anti-rotation out,distal intramedullary nail of femoral refracture occurred in 1 case.

CONCLUSIONTwo treatment methods for the treatment of femoral fractures had a good therapeutic effect,but the intramedullary fixation had shorter operative time and less blood loss than the eccentric fixation,it prior to apply to osteoporosis and unstable femoral intertrochanteric fractures.

Adult ; Aged ; Aged, 80 and over ; Female ; Fracture Fixation, Intramedullary ; methods ; Fracture Healing ; Hip Fractures ; surgery ; Humans ; Male ; Middle Aged ; Operative Time

A batch laboratory test was conducted to examine the effect of biological reductive dechlorination of 2,4-Dichlorophenol(2,4-DCP) by the addition of zero-valent iron(Fe0) in the anaerobic system, through inoculating the anaerobic mixed microorganism acclimated for two months. Meanwhile, several factors that affected "Fe0+ microbe" system were also being discussed. The results showed that, "Fe0+ microbe" system accelerated the biological dechlorination of 2,4-DCP effectively compared to the individual use. The opti-mum quantity of added Fe0 and inoculation was 0.5 g/L and 376.2 mgVSS/L in the combined system respec-tively. It showed the most effective transformation efficiency for 2,4-DCP when initial pH=8.0, whereas it become weaker when initial pH are keeping in acid condition. There existed a proportion between quantity of added Fe0 and inoculation. It enhanced degradable effect of 2,4-dichlorophenol when increased the quan-tity of inoculation at suitable ranges, which generated more enzyme or enzymatic series degraded pollutant.

OBJECTIVE To evaluate the difference of efficacy of sublingual immunotherapy on different age patients with allergic rhinitis. METHODS 229 patients with dermatophagoides farina drops allergic rhinitis who have finished SLIT at least 2 years were enrolled and analyzed by retrospective analysis. All patients were divided into different age groups: pre-adolescence(n=107), adolescence(n=53), adulthood(n=69). Indexes for therapeutic effects of SLIT visual analogue scale(VAS) score, rhinitis symptom scores, medication scoreintra- and inter groups were assessed during different stage of treatment(3 months, 1 year and 2 years). Data were analyzed with SPSS 19.0 software. RESULTS Compared with prior treatment, after the SLIT for 3 months, 1 year, 2 years, VAS scores, rhinitis symptom scores, medication scoresof all the patients with allergic rhinitis are significantly decreased; Differences of rhinitis symptom scores(H=0.844, 4.153, 2.669, P>0.05), VAS score(H=1.356, 3.720, 0.313, P >0.05), medication scores(H=1.044, 5.841, 3.399, P>0.05) between groups had no statistical significance at different stage after treatment(3 months, 1 year and 2 years); The differences between 2 years and 1 year of SLIT treatment showed statistical significance in the VAS scores(Z=1.635, P =1.635). CONCLUSION SLIT with dust mites drops had good curative effect and security in patients with allergic rhinitis, which hadno obvious difference between different age groups.

In temporomandibular disorders (TMD), pain takes place when neuropeptides stimulate synovial tissue to produce several cytokines such as interleukin (IL)-1β, IL-6 and tumor necrosis factor (TNF)-α, which activate neurons and glia of synovial membrane at the bilaminar regions of temporomandibular joint (TMJ). It has been reported that, after neurogenic differentiation, the synovial mesenchymal stem cells (SMSCs), deriving from TMJ, possess the same cytological features as the neuronal cells. This study examined the ability of substance P (SP) and calcitonin gene-related peptide (CGRP) to stimulate SMSCs and neurogenic SMSCs secreting inflammatory cytokines during TMD, evaluated the mutual effects of inflammatory cytokines and neuropeptides and tested the analgesic effect of hyaluronic acid (HA). The levels of IL-1β, IL-6 and TNF-α in SMSCs and neurogenic SMSCs in the presence of neuropeptides were measured by ELISA. SP and CGRP produced by SMSCs and neurogenic SMSCs were determined by RT-PCR and Western blotting. The results showed that the expression of SP and CGRP was significantly enhanced in the neurogenic SMSCs in response to IL-1β, IL-6 and TNF-α, and the effect was remarkably inhibited by HA. IL-1β, IL-6 and TNF-α, in return, could be enhanced in the neurogenic SMSCs upon stimulation by SP and CGRP. Neuropeptides and inflammatory cytokines might work mutually on the TMD pain. The HA-mediated analgesic effect may be implicated in the inhibition of SP and CGRP expression in neurogenic SMSCs.

Objective To observe the expression of estrogen receptor(ER)? and ER? in the vaginal wall of women with anterior vaginal prolapse,and to investigate the relationships of ER subtypes with the development of pelvic organ prolapse(POP).Methods Seven premenopausal women and 33 postmenopausal women with anterior vaginal prolapse who underwent surgery in our hospital from July 1999 to July 2004 were analyzed.Nine premenopausal and 8 postmenopausal women with squamous carcinoma of cervix who underwent surgery served as controls.The expression of ER? and ER? in squamous epithelium (SE),lamina propria(LP)and muscular layer(ML)of anterior vaginal wall were studied by immunohistochemical staining.Results(1)Both ER? and ER? were expressed in SE,LP,ML of vaginal wall of premenopausal and postmenopausal women.(2)The expression of ER? was not significantly different in premenopausal and postmenopausal women;the expression of ER? was not significantly different in premenopausal and postmenopausal women with POP;however,it was decreased in postmenopausal women without POP(P

Adenocarcinoma ; diagnosis ; metabolism ; pathology ; Carcinoma, Signet Ring Cell ; diagnosis ; metabolism ; pathology ; Gene Expression Regulation, Neoplastic ; Humans ; Male ; Neoplasm, Residual ; metabolism ; Prostatic Hyperplasia ; metabolism ; Prostatic Intraepithelial Neoplasia ; metabolism ; Prostatic Neoplasms ; diagnosis ; metabolism ; pathology ; Racemases and Epimerases ; metabolism ; Sensitivity and Specificity

China ; Humans ; Occupational Health ; Solvents ; Surveys and Questionnaires

OBJECTIVETo investigate the relationship between the second to the fourth digit ratio (2D:4D) and body mass index (BMI) in infertile men of the Han ethnic group in Ningxia.

METHODSUsing anthropometry, we calculated the mean ratio of 2D:4D and BMI of 197 infertile men and 148 normal healthy male controls, followed by analysis of their relationship.

RESULTSThe BMI was correlated positively with the 2D:4D ratio of the left hand in the infertile men (P < 0.05) and in the patients with a higher 2D:4D ratio of the left hand (P < 0.05), but negatively with the 2D:4D ratio of the righ/left (Dr-1) (left: P < 0.01; Dr-l: P < 0.05). The mean 2D: 4D ratio and BMI were both lower in the normal control than in the infertile men, with statistically significant differences in BMI (P < 0.05) and the 2D:4D ratio of the left hand (P < 0.05).

CONCLUSIONThere is a correlation between the 2D:4D ratio and BMI in infertile men.

Body Mass Index ; Case-Control Studies ; Fingers ; anatomy & histology ; Humans ; Infertility, Male ; diagnosis ; Male

To develop Students' Practical Ability according to the teaching requirement and culture aim of preventive medicine major,the teaching plan,teaching content,teaching methods,and experimental check-ing methods were explored and the experimental teaching pattern of medical microbiology adapted to pre-ventive medicine major was constructed.The investigation showed that the experimental teaching pattern helped to cultivate the students' operating ability,thinking of scientific research and ability of aggregate and solving analysis.Moreover,it helped to develop the students' co-operative consciousness and team spirit.It indicated that the new pattern was superior to the traditional experimental teaching.