Background It is widely appreciated that many animal cells rely on the mechanism of regulatory volume decrease (RVD) after swell under the hypotonic environment,which involved in some processes of cellular physiology.But the RVD of lens epithelial cells(LECs) still is being further researched.Objective Present study was to clarify the possible mechanisms and influencing factors in the RVD of LECs.Methods Human LECs line (HLE B-3)were cultured and passaged in DMEM/F12 containing 10％ fetal bovine serum(FBS),and before volume measurement,cells were stuck to the base of a perfusion chamber,Ringer solution osmolality was decreased from 15％Hypo to 45％ Hypo,and the cells stimulated by 45％ Hypo Ringer solution were used as the control group.Some experiments were performed in the presence of high extracellular K+ concentration,chloride or potassium channel inhibitor,experiments were also carried out in the nominal absence of Ca2+,Cl-or HCO-3 to test the effect of a decrease in intracellular concentration of these ions on the cell volume response.The volume changes of living cells were measured by lag-time microphotograph acquisition and analysis system (IPP6.0).Results Time course of cell volume change after hypotonic shock in HLE B-3 cells was observed.The cell swelling was followed by a gradual volume recovery,indicating the presence of RVD was influenced by the hypotonic stress.Under the stimulation of 45 ％Hypo Ringer solution,the rates of RVD were (59.1 ±7.8)％.RVD was correlated positively to the maximum cell volume (r =0.99,P＜0.05)in S shape,and RVD changes were sensitive to alter maximum cell volume in the range of 115％-135％.RVD reduced to (16.5 ± 1.6) ％,(14.7 ± 2.3) ％,respectively after acted by potassium channel inhibitor,TEA(10 mmol/L)and BaCl2(5 mmol/L)as well as chloride channel inhibitor,NPPB(100 μmol/L)and DIDS(100 μmol/L),with significant differences in comparison with the control group(all P＜0.01).RVD decreased by(5.8±1.6)％ and(2.7±0.8)％ in high concentration of K+ in extracellular fluid and the absence of Cl-(P＜0.01).RVD was significantly inhibited under the absence of Ca2+.When the 45％ Ringer solution was pH6.8,the process of RVD delayed.The rate of RVD in the first ten minutes was (0.86±0.24)％/min,showing a significant decline in comparison with (3.24±0.84) ％ / min of pH 7.4 (P ＜0.05).Conclusions HLE B-3 have RVD ability under the hypotonic stress stimulation.A certain intracellular Ca2+ concentration is the premise of RVD activation,and Cl efflux and K+ efflux are the key mechanism of RVD of HLE B-3.Acidic environment of hypotonic solution delays the occurrence of RVD.

OBJECTIVETo analyzed the relationship between lumbar endplate Modic area changes rate and low back pain by measuring MRI T2 sagittal image of lumbar endplate Modic area changes rate.

METHODSFrom December 2011 to June 2012,70 patients with low back pain in operation were evaluated on pain by VAS and function by JOA,and examined by MRI including 39 males and 31 females with an average age of (51.00 +/- 11.89) years ranging from 29 to 72 years old. Among them, 54 cases had lumbar endplate Modic changes involving 15 cases in types Modic I ,21 cases in type Modic II, 11 cases in type Modic III ,mixed type Modic in 7 cases (eliminated for too few cases). Modic area changes and corresponding vertebral area were measured on MRI T2 median sagittal. The areas of two ways were compared to yield the rate of changes for Modic, for multisegmental Modic changes to calculate the total ratios. A correlation was observed among JOA, VAS and the rate of Modic changes.

RESULTSThe correlation coefficient of change rate of Modic I with JOA score was r = -0.308, P = 0.048 < 0.05, there was a negative correlation;the correlation coefficient of change rate of Modic I with VAS scores was r = 0.428,P = 0.021 < 0.05, there was a positive correlation. The correlation coefficient of change rate of Modic II with JOA score was r = -0.375, P = 0.043 < 0.05, there was a negative correlation;the correlation coefficient of change rate of Modic II with VAS score was r = 0.352, P = 0.041 < 0.05, there was a positive correlation. The area change rate of Modic III had no significant correlation with low back pain degree (P > 0.05).

CONCLUSIONModic I and II area changes rate of of patients with low back pain is closely related to the degree of pain low back pain, Modic III area changes rate is not significant correlated to the degree of lower back pain.

Adult ; Aged ; Female ; Humans ; Low Back Pain ; diagnosis ; diagnostic imaging ; Lumbar Vertebrae ; diagnostic imaging ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Radiography

To investigate the morphogenetic process of human adenovirus type 41 (HAdV-41), 293TE cells were infected with purified wild-type HAdV-41, and ultrathin sections of infected cells were prepared and observed under a transmission electron microscope. Results showed that HAdV-41 entered host cells mainly through three ways: non-clathrin-coated pit, clathrin-coated pit, and direct penetration of plasma membrane. In addition, cell microvilli might help HAdV-41 enter cells. After entering into cells, HAdV-41 virus particles could be found in vacuoles or lysosomes or be in a free state in cytoplasm. Only free virus particles could be found near nuclear pores (NP), suggesting that the virus needed to escape from lysosomes for effective infection and viral nucleoprotein entered the nucleus through NP. Progeny viruses were as-sembled in the nucleus. Three types of inclusion bodies, which were termed as fibrillous inclusion body, condense inclusion body, and stripped condense inclusion body, were involved in HAdV-41 morphogenesis. In the late phase of viral replication, the membrane integrity of the infected cells was lost and viral particles were released extracellularly. This study reveals the partial process of HAdV-41 morphogenesis and provides more biological information on HAdV-41.
Adenovirus Infections, Human ; virology ; Adenoviruses, Human ; genetics ; growth & development ; physiology ; ultrastructure ; Cell Membrane ; virology ; Cell Nucleus ; virology ; Humans ; Virus Release ; Virus Replication

Objective To summarize the experience of multidisciplinary consultation for prenatal fetal deformity, and to explore the mode suitable for China. Methods The Obstetrics and Gynecology Hospital of Fudan University and Children's Hospital of Fudan University established a joint multidisciplinary consultation center, including obstetrics, pediatrics, pediatric surgery, ultrasound and other departments. A total of 3 378 pregnant women visited the consultation center from July 31, 2003 to August 1, 2013. After consultation, treatment was divided into three classes:pregnancy termination, pregnancy continuation and perinatal treatment. Follow-up was made through correspondence and telephone communication. Retrospective analysis on reasons for consultation, fetal structural abnormalities of the classification system, chronological order of abnormalities, gestational weeks of diagnosis, maternal-related factors, treatment and prognosis was performed. Results (1) Reasons for consultation:Among 3 378 women undertaking prenatal multidisciplinary consultation, 3 243 (96.00%) were due to fetal factors, and 135 (4.00%) were due to maternal factors. (2) Classification of fetal structural abnormalities:Among the 3 243 cases undertaking consultation with fetal factors, fetal abnormality was found in 80.85%(2 622/3 243). The most common were neurological abnormalities(23.19%, 608/2 622), followed by urinary tract malformation (20.25%, 531/2 622) and cardiovascular malformation (15.48%, 406/2 622). These were followed by digestive system malformation, limb deformities and space-occupying lesions. There were 156 cases of multiple malformations. (3) Average gestational weeks for diagnosis of fetal deformity:The 2 622 cases of fetal deformity were diagnosed at a mean (26.7± 2.1) of gestational weeks (21.1–30.4 weeks). Urinary tract malformations were detected at (24.0±0.7) weeks, whereas digestive system malformations were detected at (28.3±2.6) weeks. (4) Induced labor:Induced labor cases accounted for 35.66% (935/2 622), among which, 92 cases were fetal intrauterine death and 843 cases were active choice. The several highest induced labor rates resulted from multiple malformations (75.64%, 118/156), abdominal wall defects (62.22%, 28/45), diaphragmatic hernia (61.54%, 24/39), cleft lip and palate (55.32%, 26/47) and cardiovascular malformations (49.51%, 201/406). For nervous system (27.80%, 169/608), urinary tract (25.80%, 137/531) and digestive system malformations (26.94%, 66/245), induced labor rates were <30%. For abdominal lesions (14.04%, 25/178) and sacrococcygeal teratoma (13.64%, 3/22), induced labor rates were<15%. (5) Continuation of pregnancy in 1 687 cases:Cesarean section was conducted in 1 046(61.94%). Neonatal death occurred in 117(6.94%).(6) Perinatal treatment:Twenty-one cases were treated during pregnancy, including thirteen cases with fetal ascites and hydrothorax treated by drainage, five cases with fetal anemia treated by intrauterine transfusion and three cases with fetal tachycardia treated by digoxin. Ten cases were treated by ex-utero intrapartum treatment. After birth, 297 newborns immediately underwent neonatal surgery. Among these, 259 cases underwent radical surgery, eleven palliative surgery, and sixteen elective surgery after follow-up. Conclusions Prenatal multidisciplinary consultation can make comprehensive multidisciplinary assessment of fetal prognosis and improve the diagnosis and treatment of structural malformations.

Objective To report clinical study of diabetic foot with microsurgical treatment.Methods 32 cases basing on physical treatment underwent operation which included reconstruction of vessel under DSA and flap transfer and relaxation of nerves.Results 8 eases were examined with DSA after operation,it showed that the bypass grafts were unobstructed and the distal blood were improved;All flap were lively. Conclusion The ulcer of the patients with diabetic foot was closed early and the blood supply of the limb have been reconstructed by microsurgical treatment,it can not only avoid amputation or lower the limb amputation level,but also improve the life quality of patients and obtain social benefit.

Metabolic disorders, such as glucose and lipid, are likely to occur after renal transplantation, leading to graft dysfunction and reduced long-term survival. Trigonelline is a type of natural alkaloid with various biological activities, which can alleviate the metabolic disorders of glucose, lipid and other types, and relieve inflammatory reaction, oxidative stress and cell apoptosis of the kidney, thereby protecting the renal function. Therefore, trigonelline may be a potential drug to regulate metabolic disorders after renal transplantation. In this article, the role of trigonelline in metabolic disorders of glucose, lipid and other types, and its application prospect in renal transplantation were reviewed, aiming to provide reference for alleviating metabolic disorders after renal transplantation and improving the long-term survival of renal transplant recipients and transplanted kidneys.

Klotho gene is an anti-aging gene that is highly expressed in the kidney. Its encoding product Klotho protein can inhibit inflammation, oxidative stress injury, and apoptosis in renal tissue. It is regarded as a renal protective protein and expected to be a new target for the treatment of renal diseases. This article reviewed the biological characteristics of Klotho and the protective effect of Klotho on renal graft function.

Objective To investigate sleep quality and it’s influencing factors of hypertensives among rural area in Hubei Province. Methods The method of stratified sampling by selecting 569 hypertensives in Xuanen county of Hubei was applied to perform the questionnaire survey, including the sociodemographic data, daily life habits and physical health data, as well as pittsburgh sleep quality index(PSQI) and compliance of hypertensive patients scale(CHPS). Results The average score of PSQI in 569 hypertensives was 7.25±3.61, of which 251(44.11%) hypertensives were poor sleep quality. The influencing factors of sleep quality for hypertensives are gender (P=0.006, OR=1.626), the number of other diseases(P=0.001, OR=1.520), regular exercise (P=0.033, OR=0.660) and the compliance of hypertensives (P=0.024, OR=1.707). Conclusions The sleep quality of rural hypertensives in Xuanen county, Hubei Province is poor, which is affected by different factors. Therefore effective measures should be taken to improve the sleep quality of hypertensives.

OBJECTIVETo investigate the clinical manifestation, individualized surgical treatment, and prognosis of intraductal papillary mucinous neoplasms (IPMN) of pancreas.

METHODSThe clinical data of 56 IPMN cases treated between January 2007 and December 2011 was retrospectively analyzed. Among the 56 patients (38 male and 18 female, mean age (61 ± 7) years), 26 were main-duct type, 18 were branch-duct type, 12 were mixed type. Pancreatectomy was performed on 48 cases, including pancreaticoduodenectomy on 29 patients, distal pancreatectomy on 17 patients, and total pancreatectomy on 2 patients.

RESULTSThe overall postoperative morbidity rate was 27.1% (13/48), there was no perioperative mortality. Pathology showed 31 cases of noninvasive IPMN, 17 cases of invasive IPMN, and 7 cases of lymph node metastasis. The rate of invasive tumors was 46.2% (12/26) in main duct type, 3/12 in mixed type, and 2/18 in branch duct type IPMN, the difference was statistically significant (χ(2) = 6.385, P = 0.041). The five-year survival rate for patients with noninvasive and invasive neoplasms was 100% and 24.6%, respectively. The prognosis of invasive cases with lymph node metastasis was significantly worse than those without lymph node metastasis (P = 0.017). A regular follow-up without surgical treatment was performed on 8 cases with asymptomatic side branch IPMN less than 3 cm in diameter, and no progression was found during the follow-up.

CONCLUSIONSIPMN has a relative good prognosis. Main duct type and mixed type IPMN have a higher malignant potential, and should receive a surgical treatment. Patients of branch duct type IPMN with a <3 cm diameter lesion and no clinical manifestations can be managed with close follow-up only.

Aged ; Carcinoma, Pancreatic Ductal ; pathology ; surgery ; Female ; Humans ; Male ; Middle Aged ; Pancreatectomy ; Pancreatic Neoplasms ; pathology ; surgery ; Prognosis ; Retrospective Studies ; Survival Rate

OBJECTIVETo analyze the stress and displacement distribution of 3D-FE models in three conjunctive methods of vascularized iliac bone graft for established mandibular body defects.

METHODSUsing computer image process technique, a series of spiral CT images were put into Ansys preprocess programe to establish three 3D-FE models of different conjunctions.

RESULTSThe three 3D-FE models of established mandibular body defects by vascularized iliac bone graft were built up. The distribution of Von Mises stress and displacement around mandibular segment, grafted ilium, plates and screws was obtained.

CONCLUSIONIt may be determined successfully that the optimal conjunctive shape be the on-lay conjunction.

Bone Transplantation ; Finite Element Analysis ; Humans ; Ilium ; Imaging, Three-Dimensional ; Mandible