OBJECTIVETo explore the ultrastructural changes of hepatocyte fibrogenesis in cholelithiasis in biliary tract.

METHODSl0 liver biopsies were taken from the patients suffered from gallstone and choledocholithiasis during surgical treatment and the ultrastructural changes were observed under electromicroscope.

RESULTSThere were plentiful collagenous microfibrils (CMFs) grown within some hepatocytes. These CMFs distributed locally or diffusely in cytoplasm even extended into nucleus. In 7 cases numerous megamitochondrias appeared in several hepatocytes, the inclusions mimicking fibrils could be frequently seen and grew beyond the envelope. Furthermore, typical CMFs could be seen in the large microbodies, and several vesicular or cystic structures similar as fibroblast were presented in marginal areas of the hepatocytes.

CONCLUSIONSWe deduce that the fibrosed hepatocytes may be remained and take part in the hyperplasia of hepatic fibrous tissue.

Adult ; Cholelithiasis ; pathology ; ultrastructure ; Female ; Hepatocytes ; pathology ; ultrastructure ; Humans ; Liver Cirrhosis ; pathology ; Male ; Middle Aged

Objective To investigate the efficacy and safety of compound azintamide on dyspepsia symptoms. Methods One hundred and eighty dyspepsia patients were divided into two groups according to dyspepsia symptom related with gastrointestinal disease ( group A) or biliary system disease (group B),whose dyspepsia symptom were not improved by the Domperidone 10 mg tid for 2 weeks. Two tablets of compound azintamide were administered orally following a meal, tid for 2 weeks. The changes of symptoms score of upper abdominal distention, upper abdominal pain or discomfort anorexia and effective rate as well as adverse events were recorded. Results Compound azintamide greatly improved the symptoms of upper abdominal distention, upper abdominal pain or discomfort and anorexia. All symptoms scores were significantly decreased after 2 weeks of compound azintamide (P < 0.01). The effective rate of each symptom and total symptoms score were more than 84.9% and 92.5%. One patient reported mild rash at the fourteenth days, which disappeared 3 days later. Conclusion Compound azintamide showed effective and safety in treatment of patient with dyspepsia symptoms when Domperidone therapy is not satisfactory.

OBJECTIVETo investigate the incidence of testicular appendages, observe their morphology, and analyze their histopathological origins.

METHODSWe observed 67 testes in 54 patients (15 children and 39 adults) undergoing scrotal surgery, investigated the incidence of testicular appendages, and identified their histopathological origins. We used the Chi-square test to compare the findings from the children and adult patients, with P < 0.05 as statistically significant.

RESULTSThe detection rates of the appendix testis, appendix epididymis, paradidymis, vas aberrans superior, and vas aberrans inferior were 80.6% (54/67), 23.9% (16/67), 1.5% (1/67), 3.0% (2/67), and 1.5% (1/67), respectively. The incidence of testicular appendages was higher in children than in adults (93.3% vs 80.8%), but with no statistically significant difference (Chi2 = 1.339, P > 0.05), and that of the appendix testis and epididymis with pedicles was significantly higher in the former than in the latter (82.4% vs 54.7%, chi2 = 4.149, P < 0.05). Pathological examination showed that the appendix testis originated from the paramesonephric duct, while the appendix epididymis, paradidymis, vas aberrans superior, and vas aberrans inferior from the mesonephric duct.

CONCLUSIONTesticular appendages consist of five embryonic remnants, including appendix testis, appendix epididymis, paradidymis, vas aberrans superior, and vas aber- rans inferior. The appendix testis originates from the paramesonephric duct, and the other four from the mesonephric duct. The clinical implication of these testicular appendages is their tendency to torsion.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Epididymis ; pathology ; Humans ; Infant ; Male ; Middle Aged ; Testis ; pathology ; Young Adult

OBJECTIVE To explore the hypolipidemic mechanisms of the total phenylpropanoid glycosides from Ligustrum robustum (Roxb.)Blume (LRTPG)in hamsters using proteomics technique. METHODS The hamsters were fed with a high fat diet to induce hyperlipidemia.Then LRTPG of high (1.2 g·kg-1),medium(0.6 g·kg-1)and low(0.3 g·kg-1)doses were administrated daily for 4 weeks.Then the concentrations of plasma and hepatic lipids were determined using enzymic methods.The total protein was extracted from livers of the model group and the group treated with the high dose of LRTPG for label-free quantitative proteomics. RESULTS LRTPG significantly reduced the concentrations of plasma and hepatic lipids in hamsters fed a high fat diet. The proteomics data showed that a total of 2231 proteins were identified,and 549 proteins were found to be differentially expressed between the model group and the group treated with LRTPG.Among the 549 proteins,93 proteins were up-regulated and 59 proteins were down-regulated, and 397 proteins were absent or not. And some of these proteins were much related to the lipid metabolism. Further, gene ontology (GO) analysis indicated metabolic process, transport, oxidation-reduction process, phosphorylation, signal transduction, lipid metabolic process were the main biological processes that those differentially expressed proteins participated. KEGG pathway analysis showed that those proteins were involved in several metabolic pathways including oxidative phosphorylation,non-alcoholic fatty liver disease(NAFLD),PI3K-Akt signaling pathway, cAMP signaling pathway, cGMP-PKG signaling pathway. CONCLUSION The proteomics study could provide valuable clues to help us to understand the hypolipidemic mechanisms of LRTPG much better.

AIMTo explore the effects of tRNA on the growth of mammalian cells.

METHODSL929, NIH3T3, MCF-7 and PC12 cells were seeded in 96 well culture plate individually, and incubated at 37 degrees C in 5% CO2 for 4 h, the tRNAs from different species were added to the culture media individually. After certain time of incubation, the viability of the cells was evaluated by the MTT methods. Sub-confluent L929 cells were incubated with 200 microg/ml ytRNA for different times, then the cells were pooled and analyzed with flow cytometry assay.

RESULTStRNA specifically inhibited the growth of L929 cells in a dose-dependent manner. The sizes of tRNA-treated cells showed larger sizes and longer processes than those of untreated cells. Flow cytometric analysis further showed that most of tRNA-treated cells were arrested in S phase of the cell cycle.

CONCLUSIONThe cell growth inhibitory effects of tRNAs were caused mainly by their degraded fragments. The results suggested that tRNA or its degraded fragments might play important roles in regulation of cell proliferation.

Animals ; Cell Cycle Checkpoints ; physiology ; Cell Line ; Cell Proliferation ; Fibroblasts ; cytology ; Flow Cytometry ; Mice ; RNA, Transfer ; physiology

OBJECTIVETo evaluate the feasibility of no antibiotic administration to prevent infection during the perioperative period of percutaneous intradiscal ozone-injection for treatment of lumbar disc herniation.

METHODSSeventy-two patients with lumbar disc herniation but normal body temperature as well as normal results of three routine tests (blood, urine, stool) and C-reactive protein (CRP) level were randomly divided into two groups. The patients in prophylaxis group were given cephalothin V(2.0 g) intravenous 30 min before the operation, and the control group did not use any antibiotics. All the patients were injected with 6-10 ml ozone (40 microg/ml) for medical use into the discs with 21G needles under fluoroscopic guidance, followed by 10 ml ozone into the paravertebral space. Three days later the general examinations and CRP measurement were repeated.

RESULTSNo infection was found in these patients, nor were any significant differences noted in the results of the examinations between the two groups after controlling in patients with above-normal white blood cell count, neutrophil percentage and CRP level.

CONCLUSIONProphylaxis antibiotics is not necessary during the perioperative period of percutaneous intradiscal ozone injection for lumbar disc herniation.

Adult ; Aged ; Anti-Bacterial Agents ; therapeutic use ; Cefazolin ; therapeutic use ; Drug Therapy, Combination ; Female ; Humans ; Injections, Intralesional ; Intervertebral Disc Displacement ; diagnostic imaging ; drug therapy ; Lumbar Vertebrae ; Male ; Middle Aged ; Oxygen ; administration & dosage ; Ozone ; administration & dosage ; Perioperative Care ; Radiography

OBJECTIVETo evaluate the effect of the diameter of abdominal aortic aneurysm (AAA) on endovascular exclusion (EVE) and its results.

METHODSFrom March 1997 to June 2007, 429 AAA patients were treated with endovascular stent-graft exclusion. According to the maximal diameter of abdominal aortic aneurysm, the patients were divided into two groups: group A (diameter < 55 mm, n = 274) and group B (diameter > or = 55 mm, n = 155). The diameter of AAA, involvement of iliac artery, length, diameter and distortion of aneurismal neck in the two groups were recorded and compared retrospectively.

RESULTSPatients in group B were significantly older than group A (73.7 vs 71.1 years, P < 0.05). More patients in group B was complicated with coronary artery disease than those in group A (P < 0.05). The mean diameter of AAA in group A was (46.6 +/- 6.8) mm, and (66.8 +/- 11.2) mm in group B (P < 0.05). Proximal aneurysmal necks were shorter, wider and more tortuous in group B than those in group A (P < 0.05). Extraperitoneal approach, embolism of inner iliac artery and reconstruction of another inner iliac artery and stretch technique were more applied in group B. There were more endoleak during operation in group B and more stent-grafts were used. There was significant difference in morbidity rate between the two groups, while no statistic difference in mortality. And in group B, there were a high rate of endoleak and secondary intervention post operation.

CONCLUSIONSThe diameter of AAA affects EVE and its results. In small aneurysms, EVE carries better outcome than in big aneurysms.

Aged ; Aged, 80 and over ; Aortic Aneurysm, Abdominal ; pathology ; surgery ; Blood Vessel Prosthesis Implantation ; methods ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Prognosis ; Retrospective Studies ; Stents ; Treatment Outcome

BACKGROUNDEndovascular stent-grafting is widely used to treat thoracic aortic dissection. However, little information is available regarding outcome following simultaneous exclusion of multiple tears. This report details eight years of experience using simultaneous multi-tear exclusion for treatment of Stanford type B thoracic aortic dissection resulting in successful aortic remodeling without adverse events.

METHODSFrom September 1998 to January 2006, 29 type B thoracic aortic dissection patients (24 men, 5 women; 27 chronic, 2 acute; mean age 58 years, range 45 - 77 years) were treated by simultaneous multi-tear exclusion in our center. Magnetic resonance angiography was used as the preoperative evaluation method. Different kinds of stent-grafts were used. The patients were followed up with contrast-enhanced spiral computed tomography at 6 months postoperatively and yearly thereafter.

RESULTSTwenty-nine surgeries were completed successfully using at least 2 stent-grafts per patient (range: 2 - 6, mean: 2.7). No major procedure-related complications, such as rupture, paraplegia, aortic branch ischemia or cerebral infarction, were observed. During follow-up, favorable remodeling of the aorta was observed.

CONCLUSIONSThe mid-term result of thoracic aortic dissection with simultaneous multi-tear exclusion was satisfactory. With the improvement of stent-grafts, simultaneous multi-tear exclusion should find wider application and become an optimal strategy for thoracic aortic dissection.

Aged ; Aneurysm, Dissecting ; pathology ; surgery ; Aortic Aneurysm, Thoracic ; pathology ; surgery ; Blood Vessel Prosthesis Implantation ; methods ; Female ; Humans ; Male ; Middle Aged ; Stents ; Treatment Outcome

OBJECTIVETo explore the quality of life among people living with HIV/AIDS (PLWHA) and analyze the influencing factors in Kunming.

METHODSA cross-sectional survey was conducted from March to April in year 2011, and 247 PLWHA were selected by convenience sampling from Yunnan CDC, Yunnan and Kunming infectious disease hospitals. General questionnaires, the simplified Chinese edition of medical outcomes study-HIV health survey (MOS-HIV, including 11 dimensions) and Social Support Scale were used. t test and multivariable linear regression model were used to analyze the results.

RESULTSFor the subjects investigated, the age was (39.8 +/- 11.9) years old, the median (quartile) value of symptoms related to HIV infection was 1(2). As to the scores of quality of life measured by MOS-HIV, physical summary score was 47.4 +/- 11.2, mental summary score was 43.6 +/- 9.7; for the scores of 11 dimensions of the MOS-HIV,that were general health (42.9 +/- 19.9), physical function (79.4 +/- 24.9), role function (59.8 +/- 48.2), social function (67.0 +/- 33.6), cognitive function (71.0 +/- 25.4), pain (81.3 +/- 26.2), mental health (62.0 +/- 22.3), vitality (49.3 +/- 23.8), health distress (74.4 +/- 21.0), quality of life (51.8 +/- 21.1), health transition (49.0 +/- 29.8). The total score of social support was 28.6 +/- 7.6, of which the score of subjective social support was 17.2 +/- 6.3, the score of the objective social support was 5.9 +/- 2.2; the score of the utilization of social support was 5.5 +/- 1.9. Multivariable linear regression analysis showed that the more the symptoms related to HIV infection, the lower the physical summary scores (standardized coefficients b' = -0.22), the general health (b' = - 0.31), the physical function (b' = -0.16), the role function (b' = -0.23), the pain (b' = -0.21), the mental health (b' = -0.22), the vitality (b' = -0.22) and the health distress scores (b' = - 0.24) (all P values < 0.05); the older the age, the lower the physical summary scores (b' = - 0.16), the mental summary scores (b' = - 0.16), the physical function (b' = -0.26), the vitality (b' = -0.26) and the quality of life scores (b' = -0.17) (all P values < 0.05); the higher the score of the subjective social support,the higher the physical summary scores (b' = 0.26), the mental summary scores (b' = 0.22), the general health (b' = 0.27), the social function (b' = 0.26), the mental health (b' = 0.15) and the quality of life scores (b' = 0.22) (all P values < 0.05); the higher the score of the utilization of social support, the higher the physical function (b' = 0.16) and the health transition scores (b' = 0.31) (all P values < 0.05).

CONCLUSIONPLWHA in Kunming have relatively lower scores of quality of life. A large number of symptoms during infection, older age and lower score of subjective social support were the hazard factors of quality of life in PLWHA.

Acquired Immunodeficiency Syndrome ; epidemiology ; Adult ; China ; epidemiology ; Cross-Sectional Studies ; Factor Analysis, Statistical ; Female ; HIV Infections ; epidemiology ; Humans ; Male ; Middle Aged ; Quality of Life ; Social Support ; Surveys and Questionnaires

OBJECTIVETo summarize our 10-year experience with percutaneous fluoroscopically guided removal (PFGR) of metallic foreign body (MFB) in the soft tissue.

METHODSPFGR was performed in 65 patients for removing a total of 368 MFBs from the soft tissues. The MFBs ranged from 0.2 to 0.3 cm in length embedded in the soft tissue for 7 days to 8 years. For superficial MFBs, the MFBs were removed directly with curved forceps under real time fluoroscopy. For deep MFBs, trocar technique was applied using the instruments for percutaneous diskectomy, with the outer cannula inserted toward the foreign body under real-time fluoroscopy followed by MFB removal by grasping forceps.

RESULTSA total of 346 MFBs were successfully removed without any serious complications (success rate 94.0%), including 154 removed directly and 192 MFBs with trocal technique. The time of the procedures and radiation exposure for MFB removal was 30 s to 20 min and 1-6 min, respectively.

CONCLUSIONPGFR of MFBs in the soft tissue under fluoroscope is safe and effective. Direct removal using curved forceps is suitable for MFBs in superficial soft tissues, while trocal techniques needs to be utilized for deep MFBs.

Adolescent ; Adult ; Child ; Female ; Fluoroscopy ; methods ; Foreign Bodies ; diagnostic imaging ; surgery ; Humans ; Lower Extremity ; Male ; Metals ; Radiography, Interventional ; Young Adult