ObjectiveTo review the surgical technique and outcome of intracranial angiographically occult vascular malformations (AOVM) hemorrhage. Methods40 patients with spontaneous intracranial hemorrhage episodes and accepted microsurgery were analyzed retrospectively. ResultsAll AOVMs were successfully resected. No operative death occurred.36 patients were followed up for mean 28 months. CT and/or MRI revealed no residual lesions. Most neurological complications improved postoperatively. 1 case demonstrated rebleeding in surgical site 48 months after operation. Another case, a follow-up MRI scan revealed a contralateral denovo lesion 44 months after operation.ConclusionA current neurosurgical procedure is a satisfactory method to prevents AOVMs rebleeding. Long-term follow-up evaluation is necessary despite the lesion has been totally resected.

Objective To explore the application value of quantitative analysis of tissue diffusion by ultrasound elastography in evaluating the evolution of achilles tendinopathy and indirectly reflecting the feature of tendon biomechanics.Methods Rabbits underwent 0.1 ml (group M) or 0.3 ml (group S)collagenase or 0.2 ml saline (group C) injection.The percentage of area displaying blue (％AREA) in the area of interest was measured by the diffusion quantitative technique of ultrasound elastography at baseline and 1,3,7 and 14 days after model.The achilles tendon was obtained for pathological examination to observe the changes of collagen fibers and tested to measure the maximum tensile load by the universal testing machine.Results (1) The ％AREAs in group M and S at 1,3,7 and 14 days after model were smaller than those in group C (P ＜0.05),and reached its lowest value at 3 days after model.％ AREA in groupSwas significant lower than that in group M at 3 or 7 days after model (P ＜0.05).(2) The maximum tensile loads in group M at 1,3 and 7 days after model were smaller than those in group C (P ＜0.05),but there was no significant difference between group M and C at 14 days after model (P ＞0.05).The maximum tensile load in group S was significant lower than those in group M and C after model (P ＜0.05),and arrived its lowest point at 3 days after model.(3) The ％AREA was positively associated with the maximum tensile load of achilles tendon (r =0.87,P ＜0.001).Conclusions Ultrasound elastography can dynamically monitor the evolution of achilles tendinopathy and reflect the biomechanical state of achilles tendon.

In order to efficiently control the quality of the Tibetan medicine Gentianae Szechenyii Flos, the quality standard was established in this study. The tests of water content, total ash and ethanol-soluble extractives of the crude drugs were carried out based on the methods recorded in appendix of Chinese Pharmacopeia (2010 edition, volume 1). The TLC method was established by using reference drug and gentiournoside A as reference substance, and a mixture of ethyl acetate-methanol-water-formic acid (7: 1.5: 1: 0.2) as the developing solvent system on silica gel G TLC plate. The content of gentiournoside A was assayed by HPLC on a Ultimate XB-C18 (4.6 mm x 250 mm, 5 μm) column, using methanol-water (0.02% phosphoric acid) (52:48) as the mobile phase at a flow rate of 1.0 mL x min(-1). The column temperature is 25 degrees C and the detection wavelength is at 240 nm. As a result, gentiournoside A and the other constituents were separated and presented the same fluorescence light comparing with the reference substance on TLC detected under the UV light(366 nm). The methodology validation for the assay of gentiournoside A showed that it was in a good linear correlation in the range of 10.01-400.32 mg x L(-1) with the regression equation of Y = 1 539.5X - 33.339 (r = 0.999 7), and the average recovery was 99.68% (RSD 1.92%). The mass fractions of gentiournoside A, water content, ethanol-soluble extractives of 19 batches samples were varied in the ranges of 14.48-31.51 mg x g(-1), 11.25% -12.74% and 24.21% - 31.60%, respectively, and total ash was 4.64% - 6.12% detected from 10 batches samples. The recommended standards of quantitative indexes are that the mass fractions of gentiournoside A and extractives are not less than 15.0 mg x g(-1) (1.5%) and 21.0%, respectively; the water and total ash are not more than 13.0% and 6.0%, respectively.
Chromatography, High Pressure Liquid ; Chromatography, Thin Layer ; Drugs, Chinese Herbal ; chemistry ; standards ; Flowers ; chemistry ; Gentiana ; chemistry ; Medicine, Tibetan Traditional ; Quality Control

OBJECTIVETo investigate the expression of phosphatase of regeneration liver-3(PRL-3) protein and its relationship with tumor invasion and metastasis in human colorectal carcinoma,and elucidate prognostic value.

METHODSImmunohistochemistry method was applied to detect the PRL-3 expression in the primary tumor specimens and paired paratumor normal tissues from 46 colorectal carcinoma patients, the adenoma tissues from 6 patients with colorectal adenoma, all the metastatic lymph nodes from 29 cases and the metastatic liver lesions from 6 cases. The relationship between PRL-3 expression and clinicopathologic parameters was analyzed and a survival curve was achieved according to Kaplan-Meier method.

RESULTSNo or weak PRL-3 protein expression was detected in normal colorectal mucosa and colorectal adenoma. In colorectal carcinoma tissues, PRL-3 expression was confirmed in 26 of 46 cases (56.5%) of primary colorectal carcinomas (with lymph node metastasis 63.0%, without lymph node metastasis 37.0%, P=0.001), 26 of 29 (89.7%) lymph node metastases, and 5 of 6 liver metastases. The expression of PRL-3 was assembled in the cytoplasm of carcinoma cells and more intensively on the cell membrane.Analysis of the relationship between PRL-3 expression and the clinicopathologic features showed that PRL-3 expression was closely associated with tumor stage (P=0.019), lymph node metastasis (P=0.026), but no relationship with age, sex, tumor size, degree of differentiation was founded (P<0.05). The mean follow-up time was 41.4 months and results showed that patients with positive expression of PRL-3 had a significantly poorer prognosis than those with negative PRL-3 expression group(P=0.032).

CONCLUSIONSPRL-3 protein plays a novel role in tumor progression and metastasis of colorectal carcinoma. PRL-3 can be expected to be a potential predictive biomarker for identifying the prognosis in colorectal carcinoma patients.

Adult ; Aged ; Colorectal Neoplasms ; metabolism ; pathology ; Female ; Humans ; Liver Neoplasms ; metabolism ; secondary ; Liver Regeneration ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Proteins ; metabolism ; Neoplasm Staging ; Prognosis ; Protein Tyrosine Phosphatases ; metabolism

OBJECTIVETo investigate the regulatory effect of potassium channel blocker (tetraethylammonium [TEA], aminopyridine [4-AP], glibenclamide [Glib]) on the proliferation of SD rat prostatic epithelial cells in vitro.

METHODSThe primary culture was prepared by collagenase dissociation of minced prostatic tissues. Cells were cultured in serum-free prostate epithelial cell growth media and identified by immunocytochemical studies. TEA and 4-AP at the concentration of 1, 5 and 10 mmol/L and Glib at the concentration of 10, 50 and 100 mol/L were added, and after 24, 48 and 72 hours of culturing, a cell column diagram was drawn and the cell number counted. The post-passage cell growth was observed by MTT assay and Hoechst33258 nucleus staining.

RESULTSThe cultured cells showed the typical morphological features of epithelia, with positive stain. MTT assay and Hoechst33258 staining showed that TEA, 4-AP and Glib at the increasing concentration effected different degrees of proliferation of prostatic epithelial cells after 24, 48 and 72 h (P < 0.01).

CONCLUSIONThe potassium channel blocker is a direct physiological regulator of the proliferation of SD rat prostatic epithelial cells.

Animals ; Cell Proliferation ; drug effects ; Cells, Cultured ; Epithelial Cells ; drug effects ; Male ; Potassium Channel Blockers ; pharmacology ; Prostate ; cytology ; drug effects ; Rats ; Rats, Sprague-Dawley

OBJECTIVETo preliminarily research the formular about the Traditional Chinese Medicine (TCM) syndrome of adolescent neck pain.

METHODSAn observation table of adolescent neck pain syndromes was formulated,and 1 397 patients with adolescent neck pain were investigated to establish a database of adolescent neck pain. The Descriptive Statistical Analysis and Hierarchical Cluster Analysis were performed by statistical software.

RESULTSTotally 60 TCM symptoms was clustered into 4 TCM syndromes by Hierarchical Cluster Analysis. The expert panel of TCM syndromes preliminarily formulate 4 TCM syndromes of adolescent neck pain by analyzing the result of Cluster Analysis and discussing their clinical experience.

CONCLUSIONAdolescent neck pain is a category of Tendon Trauma's Bi-syndrome of TCM. Ying, Wei, Qi and blood block caused by exopathy, strains, and internal injury is considered as the main pathogenesis of adolescent neck pain. Base on statistical result and expert's opinions, 4 TCM syndromes about adolescent neck pain were formulated: cold-dampness syndrome, dampness-heat blockage syndrome, liver-stagnation and spleen-deficiency syndrome, Qi and Yin deficiency of both heart and kidney syndrome.

Adolescent ; Adult ; China ; epidemiology ; Diagnosis, Differential ; Female ; Humans ; Male ; Medicine, Chinese Traditional ; Neck Pain ; diagnosis ; epidemiology ; Young Adult

Adolescent ; Cerebellum ; diagnostic imaging ; pathology ; Cerebral Angiography ; Female ; Humans ; Intracranial Arteriovenous Malformations ; complications ; diagnostic imaging ; pathology ; Moyamoya Disease ; complications ; diagnostic imaging ; pathology

Objective To study the role of complement C3a receptor (C3aR) in cognitive impairment in rats with sepsis induced by cecal ligation and puncture (CLP), and to explore the possible mechanism. Methods Totally 132 rats were randomly divided into sham operation group (sham group) and sepsis group (CLP group). The initial number of each group was 66 animals, and 22 animals were set at each time point. The SD rat CLP animal model was constructed, and serum and brain (hippocampus and prefrontal cortex) samples were collected at day 1, day 15 and day 30 after operation. The levels of tumor necrosis factor-α(TNF-α), interleukin-1β (IL-1β) and IL-6 in the samples were determined by ELISA. Western blotting detected Tau protein (Tau), phosphorylated Taup-Tauand C3aR expression in brain samples. Totally 66 rats were randomly divided into 3 groups, sham operation group, CLP group and C3aR antagonist(C3aRa) intervention group. On 15th, 17th, and 19th days after CLP, C3aRa intervened in rats, and they received inhibition avoidance test and object recognition test 30 days after CLP. The expressions of C3aR, lonized calcium binding adapter molecule 1(Iba1), GFAP and p-Tau in the hippocampus were detected by immunofluorescence. Results Compared with the sham group, the serum and brain tissue (TNFα, IL-1β and IL-6) of rats in the CLP group first increased and then decreased within 30 days after CLP. In the hippocampus and prefrontal cortex of CLP group, Tau phosphorylation was significantly enhanced at day 30 and day 1 and 15 after surgery, respectively (P<0.05). Compared with the sham group, C3aR protein levels in hippocampus and prefrontal cortex of rats in CLP group increased significantly at day 15 and 30 after operation (P<0.05). Compared with the CLP group, the endogenous C3aR content decreased significantly after C3aRa intervention (P<0.05), and Iba1, GFAP and p-Tau immunostaining were significantly inhibited (P<0.05). The C3aRa intervention in CLP rats reversed the cognitive impairment. Conclusion C3aR plays an important role in the development of biochemical and behavioral changes commonly associated with the onset of sepsis-induced neurodegenerative processes. C3aRa can be injected into the hippocampus to counteract the neurodegenerative process induced by sepsis.

Objective To investigate the treatment effects of operation and nerve growth factor on adult multisegmental cervical spinal cord injury without fracture dislocation.Methods Sixty-eight patients with multiple segmental cervical spinal cord injury without fracture dislocation,admitted to our hospital from January 2004 to May 2011,were chosen in our study; according to the will of the patients,18 patients received conservative treatment (group A),25 patients were treated by posterior single open-door laminoplasty (group B) and the other 25 patients were treated with posterior single open-door laminoplasty combined with nerve growth factor (group C,once daily for 4 weeks); their clinical data were retrospectively analyzed.Follow up was performed at 3,6 and 12 months after the treatments;Japanese Orthopaedic Association (JOA) scale was employed to evaluate the clinical efficacy.Results Three,6,12 months after the treatments,the JOA scale scores were statistically different among the three groups (P＜0.05); the scores in group B and C were significantly higher than those in group A at all time points (P＜0.05); 6 and 12 months after the treatmemts,the JOA scale scores in group C were significantly higher than those in group B (P＜0.05).Conclusion To patients with multisegmental cervical spinal cord injury without fracture dislocation,conservative treatment can make the spinal cord function partially restored,but the effect is limited; exogenous nerve growth factor has good repairing effect on spinal cord injury.

OBJECTIVETo study lymph node involvement and micro-metastasis of rectal cancer with large slice technique and tissue microarray.

METHODSLarge slice technique, combined with tissue microarray,was used in pathologic study of 31 patients after total mesorectal excision (TME) for rectal cancer.

RESULTSNine hundred and ninety- two lymph nodes were harvested and 148 were positive. More than 40% of positive lymph nodes were located in the outer layer of the mesorectum and in the same side of the mesorectum as the primary tumor was. Circumferential margin involvement was observed in 12 cases and correlated with the numbers of metastatic lymph nodes (Beta =1.166, P=0.041). Micrometastasis was found in 9 cases with negative pathological lymph nodes, but not correlated with tumor differentiation and stage (P> 0.05).

CONCLUSIONLarge slice technique combined with tissue microarray facilitates the detection of lymph node involvement and micrometastasis. There is a predominance of lymph node metastasis in the outer layer and the same side of the mesorectum. Micrometastasis can be discovered in different stages of rectal cancer.

Adult ; Aged ; Female ; Humans ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; pathology ; Male ; Mesentery ; pathology ; surgery ; Microtomy ; methods ; Middle Aged ; Neoplasm Staging ; Rectal Neoplasms ; pathology ; surgery