Objective:To evaluate facial soft tissue 3-deminsion changes of skeletal Class Ⅲmalocclu-sion patients after orthognathic surgery using structure light scanning technique .Methods:Eight patients [3 males and 5 females, aged ( 27.08 ±4.42 ) years ] with Class Ⅲ dentoskeletal relationship who underwent a bimaxillary orthognathic surgical procedure involving advancement of the maxilla by Le FortⅠosteotomy and mandibular setback by bilateral sagittal split ramus osteotomy (BSSO) and genioplasty to correct deformity were included .3D facial images were obtained by structure light scanner for all the patients 2 weeks preoperatively and 6 months postoperatively .The facial soft tissue changes were evalua-ted in 3-dimension.The linear distances and angulation changes for facial soft tissue landmarks were ana-lyzed.The soft tissue volumetric changes were assessed too .Results: There were significant differences in the sagittal and vertical changes of soft tissue landmarks .The greatest amount of soft tissue change was close to lips.There were more volumetric changes in the chin than in the maxilla , and fewer in the forehead .Conclusion: After biomaxillary surgery , there were significant facial soft tissue differences mainly in the sagittal and vertical dimension for skeletal Class Ⅲ patients .The structure light 3 D scan-ning technique can be accurately used to estimate the soft tissue changes in patients who undergo orthog-nathic surgery .

Content and type of triacylglycerols(TAGs) in edible oils are closely related with our health,it is of significance to develop a fast and high-efficiency method for the determination of TAGs. In this manuscript, a fast and direct method for qualitative analysis of TAGs was established using matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance mass spectrometry (MALDI-FTICR-MS). 2,5-DHB was employed as matrix and dichloromethanewas used as solvent for dissolving edible oils. With laser power of 15%,laser frequency of 100 Hz and 100 laser shots, repeatability was evaluated using relative standard deviation (RSD) and less than 10% was obtained. Different kinds of edible oils could be directly distinguished from each other using MS and MS/MS results. With confidence level of 95%, principal component analysis(PCA) results show that 34 different kinds of edible oils were clearly classified. Using this method 5% doped canola in olive was identified directly,indicating that MALDI-FTICR-MS has the potential for rapid analyzing and screening edible oils.

In 2012, the preparation process and quality standard for Guizhi Fuling capsule were improved. To compare the effects and differences of capsules before (2011) and after(2012-2014) the improvement, evaluation models for intrinsic dysmenorrhea, pelvic inflammation and hysteromyoma were applied in rats. Models were induced by oxytocin, liqiud bacteria mixture and estrogen loading, respectively. The capsules (12 batchs/year, 48 bathcs in all), sampled randomly in 2011-2014, the effects were assessed using the three models. In anti-dysmenorrhea models, remarked reduction of writhing frequency, ET-1 and PGF2α content in uterus could be detected, as well as extension of writhing latency. In pelvic inflammation rats, depression of TNF-α and raise of IL-2 were induced by earh batch of capsules. In hysteromyoma model, uterine weight and smooth muscle proliferation, including E2 and P level in plasma, were lowered obviously by all batchs of capsules. Secondly, Guizhi Fuling capsules produced in 2012-2014 revealed better effectiveness than the ones manufactured in 2011. Moreover, pharmacodynamics indexes of the samples made in 2011 differed significantly between groups, which could not be observed in the ones ot 2012-2014. After tne preparation process and quality standard improvement, the effectiveness and homogeneity of Guizhi Fuling capsules were enhanced.
Animals ; Capsules ; administration & dosage ; chemistry ; standards ; Depression ; drug therapy ; genetics ; metabolism ; Dinoprost ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; standards ; Dysmenorrhea ; drug therapy ; genetics ; metabolism ; Female ; Humans ; Interleukin-2 ; genetics ; metabolism ; Pelvic Inflammatory Disease ; drug therapy ; genetics ; metabolism ; Quality Improvement ; Rats ; Rats, Sprague-Dawley ; Tumor Necrosis Factor-alpha ; genetics ; metabolism

OBJECTIVETo observe the effect platelet antigen modification by mPEG-SPA with different molecular masses.

METHODSPlatelet CD42a was modified by 5 kD and 20 kD mPEG-SPA, respectively, and the fluorescence intensity of CD42a was detect by flow cytometry and the three-dimensional structure of CD42a simulated to analyze the distribution of lysine in CD42a molecule.

RESULTSAfter platelet CD42a modification by 5 kD and 20 kD mPEG-SPA, the fluorescence intensity of CD42a decreased sharply by 85.54% and 88.65%, respectively, and multiple lysine regions were identified on the surface of CD42a molecule.

CONCLUSIONBoth 5 kD and 20 kD mPEG-SPA allow useful modification of platelet CD42a, but 20 kD mPEG-SPA is more advantageous than 5 kD mPEG-SPA.

Blood Platelets ; chemistry ; Humans ; Molecular Weight ; Platelet Glycoprotein GPIb-IX Complex ; chemistry ; Polyethylene Glycols ; chemistry ; Succinimides ; chemistry

OBJECTIVETo explore the indication and efficacy of transanal local excision for low rectal cancer.

METHODSA total of 40 consecutive patients undergoing transanal local excision of low rectal cancer were analyzed retrospectively.

RESULTSThe mean operative time was 50 (30-85) minutes. The mean intraoperative blood loss was 40 (10-100) ml. The mean hospital stay was 5 (2-10) days. The local recurrence rate was 20.0% (8/40). The 5-year survival rate was 90.0%. Local recurrence rate was 17.9% (5/28 cases) for T1, and 25.0% (3/12) for T2 lesions. However, the difference between the two groups was not statistically significant (P=0.61). Local recurrence rate was significantly lower for moderate differentiated than that for well-differentiated cancer [12.9% (4/31) vs. 44.4% (4/9), P=0.037]. Tumor diameter less than 3 cm was associated with a significantly lower local recurrence rate as compared to the counterparts (10.7% vs. 41.7%, P=0.03). No significant correlations were found between local recurrence and other variables including tumor location (P=0.93), tumor classification (P=0.53), and method of surgical excision (P=0.41).

CONCLUSIONSIndications for transanal local excision of low rectal cancer include T1 and T2 tumors with well differentiation and the diameter less than 3 cm. Clinical outcome may be favorable if patients are carefully selected for transanal local excision.

Adult ; Aged ; Aged, 80 and over ; Anal Canal ; surgery ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Rectal Neoplasms ; pathology ; surgery ; Retrospective Studies ; Survival Rate ; Treatment Outcome

Compartment Syndromes ; diagnosis ; etiology ; Female ; Fractures, Bone ; complications ; Hematoma ; complications ; Humans ; Middle Aged ; Pelvic Bones ; injuries ; Retroperitoneal Space

OBJECTIVESTo evaluate the long-term facial nerve function of patients following microsurgical removal of large and huge acoustic neuroma, and to identify the factors that influence these outcomes.

METHODSA retrospective review was performed which included 176 consecutive patients with a large acoustic neuroma (≥ 30 mm) underwent a retrosigmoid craniotomy for tumor resection between January 2002 to November 2009. House-Brackmann (HB) Scale was used preoperatively and in a long-term follow-up after surgery. Test for linear trend was applied for statistic analysis.

RESULTSComplete resection was achieved in 168 (95.5%) of these 176 patients with a mortality of 1.7%. Anatomic preservation of the facial nerve was attained in 96.0% of the patients. In the series of 96 patients who had at least 1-year follow-up (mean 3.0 years) the facial nerve function preservation (HB grade 1 - 2) was totally attained in 79 patients (82.3%), and 40 of 55 patients (72.7%) who presented huge tumors (diameter > 40 mm) among the 96 patients had facial nerve function preserved. Analysis showed that facial nerve function correlated linearly with tumor sizes (χ(2) = 14.114, ν = 1, P < 0.05).

CONCLUSIONSComplete removal of large and giant acoustic neuroma may be obtained via retrosigmoid approach with facial nerve preservation. Excellent long-term facial function can be expected in the majority of patients who undergo microsurgical removal of vestibular schwannoma via the suboccipital retrosigmoid approach. Tumor size is a significant prognostic parameter for facial nerve function following vestibular schwannoma surgery.

Adolescent ; Adult ; Aged ; Facial Nerve ; physiopathology ; surgery ; Female ; Follow-Up Studies ; Humans ; Male ; Microsurgery ; Middle Aged ; Neuroma, Acoustic ; surgery ; Prognosis ; Retrospective Studies ; Treatment Outcome ; Young Adult

OBJECTIVETo study the protective effect of Shenxiong injection on the cerebral ischemia-reperfusion injury of senile rats.

METHODTotally 108 Sprague-Dawley (SD) rats were randomly divided into the sham operation group, the model group, the Ni-modipine group and Shenxiong injection groups (low, middle, and high doses). The rat brain ischemia-reperfusion model was established by the middle cerebral artery occlusion (MCAO) method in rats, in order to observe the effect of Shenxiong injection on neurological score and brain infarct volume of rats with cerebral ischemia-reperfusion injury, and determine the contents of NOS, NO, SOD, MDA and LDH in brain tissues. The contents of TNF-alpha and IL-1beta levels in brain tissues were measured by enzyme-linked immunosorbent assay (ELISA) method.

RESULTShenxiong injection could significantly decrease neurological score, injury degree of brain tissues and brain infarct volume of rats with cerebral ischemia-reperfusion injury, increase the vigor of SOD, decrease the levels of MDA, NO, NOS and LDH, and inhibit IL-1beta and TNF-alpha expressions.

CONCLUSIONShenxiong injection has the obvious protective effect on the brain ischemia-reperfusion injury in rats. Its mechanism may be related to the improvement of neurological function, the reduction of free radical injury, and the inhibition of inflammation factor expression.

Animals ; Brain ; blood supply ; drug effects ; metabolism ; Brain Ischemia ; complications ; Drugs, Chinese Herbal ; administration & dosage ; pharmacology ; therapeutic use ; Injections ; L-Lactate Dehydrogenase ; metabolism ; Male ; Malondialdehyde ; metabolism ; Nitric Oxide ; metabolism ; Nitric Oxide Synthase ; metabolism ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; complications ; drug therapy ; enzymology ; metabolism ; Superoxide Dismutase ; metabolism

Objective To summarize the clinical experience in the replacement of the damaged sec- ond metacarpophalangeal joint with the second metatarsophalangeal joint with a pedicle of dorsal pedis artery and great saphcnous vein.Methods The damaged second metacarpophalangeal joint,distal part of the sec- ond metacarpal and proximal part of the proximal phalanx were dissected.The metatarsophalangeal joint was transferred to the region of metacarpophalangeal joint of hand.The dorsal pedis artery was anastomosed to the radial artery,and the great saphenous vein was anastomosed to the cephalic vein at anatomical snuff-box.The dissected bones of the hand removed of the cartilage of joint and soft tissue were grafted back to the donor site of the foot.Results A 5～30 month follow-up study in 8 out of 11 cases showed that satisfactory functional recovery was achieved in clinical practice.The movement of second metacarpophalangeal joint was excellent. Conclusion The function of the second metacarpophalangeal joint can be effectively recovered by the trans- fer of the vascularized second metatarsophalangeal joint.

OBJECTIVETo explore the effect of one dressing of porcine acellular dermal matrix on deep partial thickness burns.

METHODSFrom January 1997 to January 2004, sixty-seven cases of deep partial thickness total burned surface area (TBSA) from 50% to 90% burn wound were treated by a single dressing of porcine acellular dermal matrix (the porcine acellular dermal matrix group). Ten cases of deep partial thickness burned patients with the same TBSA treated by exposure method served as the exposure method group. The healing time of the wound was observed. The patients were followed up for 3 months to 2 years, and the scar proliferation was observed.

RESULTSThe deep partial-thickness wound would be healed without dressing change in the porcine acellular dermal matrix group, and the average healing time was (12.2 +/- 2.6) days. The average healing time of the exposure method group was (27.4 +/- 3.5) days. Follow up of the patients within 3 months to 2 years showed that scar proliferation in the porcine acellular dermal matrix group was much less than that in the exposure method group, even no scar proliferation was observed in some patients.

CONCLUSIONWithout tangential excision, autografting and dressing change, a single dressing of porcine acellular dermal matrix on deep partial thickness burn wound could shorten the healing time and inhibit scar proliferation.

Animals ; Biological Dressings ; Burns ; pathology ; therapy ; Cicatrix ; prevention & control ; Female ; Follow-Up Studies ; Humans ; Male ; Swine ; Treatment Outcome ; Wound Healing