Objective To explore the effect and indication of splenectomy in liver transplantation.Methods From January 2001 to April 2006,260 patients underwent piggyback orthotopic liver transplantation(PBOLT),and 28 patients had undergone combined PBOLT and splenectomy(splenectomy group).These patients were compared to 56 randomly selected non-splenectomy patients from the same transplant period,meaningly two controls were se- lected for every non-spleneetomy case.Two groups were analyzed with respect to rate of infection and survival rate, as well as biopsy-proven acute allograft rejection within 30 days after transplantation.Results Rate of infection in the splenectomy group was higher than that in the non-splenectomy patients(85.7% vs 55.4%,P

Objective To explore the potential risk factors to Ymman endemic sudden cardiac death (YESCD) and provide evidence for prevention. Methods Twenty-two cases and 24 controls were randomly selected from YESCD areas and non-YESCD areas, respectively. Both cases and controls were interviewed with unified questionnaires. Univatiate X2 test and multivariate conditional logistic stepwise regression was conducted with SPSS 13.0. The optimal regression model was established and evaluated. Results The univariate X2 teat revealed that presence or absence of 5 potential factors might possibly be associated to YESCD: appropriate places for storing dining utensils, pens for livestock, consumption of mushrooms, exposure to any pesticides, and sudden climate changes before onset(X2=12.206,4.779,5.741,6.120,10.754, P<0.05). Multivariate conditional logistic stepwise regression demonstrated that consumption of mushrooms was a protective factor(OR=0.115, P<0.05) and sudden climate change was a risk factor(OR=36.592, P<0.01). Conclusions Sudden climate change might be a risk factor contributing to YESCD, and eating mushrooms before the prevalence seasons may provide some protection.

While several organs in mammals retain partial regenerative capability following tissue damage, the underlying mechanisms remain unclear. Recently, the Hippo signaling pathway, better known for its function in organ size control, has been shown to play a pivotal role in regulating tissue homeostasis and regeneration. Upon tissue injury, the activity of YAP, the major effector of the Hippo pathway, is transiently induced, which in turn promotes expansion of tissue-resident progenitors and facilitates tissue regeneration. In this review, with a general focus on the Hippo pathway, we will discuss its major components, functions in stem cell biology, involvement in tissue regeneration in different organs, and potential strategies for developing Hippo pathway-targeted regenerative medicines.
Adaptor Proteins, Signal Transducing ; metabolism ; Animals ; Homeostasis ; physiology ; Humans ; Phosphoproteins ; metabolism ; Protein-Serine-Threonine Kinases ; metabolism ; Regeneration ; physiology ; Signal Transduction ; physiology

OBJECTIVETo detect the expression of membrane-bound HLA-G (mHLA-G) and serum HLA-G (sHLA-G) in acute leukemia patients and investigate the correlation between HLA-G expression and the occurrence and development of acute leukemia.

METHODSEnzyme-linked immunosorbent assay and flow cytometry were used to detect the expression levels of sHLA-G and mHLA-G in 40 newly diagnosed leukemia cases, 10 refractory and relapsed leukemia cases, and 30 leukemia cases receiving chemotherapy. Ten normal individuals served as the normal control group.

RESULTSThe mean serum level of sHLA-G in normal individuals was 5.87±2.07 ng/ml, as compared to 10.05±6.58 ng/ml in newly diagnosed leukemia patients and 12.32±5.85 ng/ml in refractory and relapsed cases. The mean level of mHLA-G in normal individuals, newly diagnosed cases, and refractory and relapsed cases were (0.29±0.20)%, (0.60±0.44)%, and (0.77±0.41)%, respectively. The mean levels of sHLA-G and mHLA-G were significantly higher in the newly diagnosed cases than that in the normal controls (P<0.05), and significantly higher in patients before chemotherapy than in those with complete remission after chemotherapy (P<0.05).

CONCLUSIONHLA-G expression levels might influence the treatment outcomes and can serve as a prognostic factor for acute leukemia.

Acute Disease ; Adolescent ; Adult ; Aged ; Case-Control Studies ; Female ; HLA-G Antigens ; blood ; metabolism ; Humans ; Leukemia ; metabolism ; pathology ; Male ; Middle Aged ; Prognosis ; Young Adult

Objective To explore the relationship between myocardial damage and antioxidant capacity in vivo of Keshan disease patients and to analyze the possible pathogenesis. Methods In the period from 2005 to 2006, 41 chronic and latent Keshan disease cases were chosen as the case group from such serious endemic areas as Yongjin Village, Xinfa Village of Fuyu County, Fuan Village of Shangzhi County, Xinghuo Village of Wudalianchi County, 61 healthy people from the same area as internal controls, 48 healthy people from Xianglansan Village of Wangkui County, an un-endemic area, as external control. Fasting peripheral venous blood was collected from all the people. And blood selenium, glutathione peroxidase(GSH-Px) and suporoxide dismutase.(T-SOD) activities, malondialdehyde (MDA) levels were examined. Results Blood selenium level of the patient group [(34.80±13.30) μg/L], GSH-Px[(104.10±34.19)U/L]and T-SOD[(92.16±17.98)×103 U/L]actives were significantly lower than the internal control group [(41.24±13.57)μg/L, (118.57±25.49)U/L, (104.82±13.56)×103 U/L]and the external control group [(48.33±16.51)μg/L, (155.00±24.01)U/L, (108.48±12.73)×103 U/L], respectively, with a statistically significant difference(all P < 0.05). MDA level of the patient group[(7.12± 1.37)μmol/L]was higher than that in the internal control group[(5.36±1.18)μmol/L]and the external control group[(5.22±0.83)μmol/L]with a statistically significant differences(both P < 0.05). The blood selenium level, GSH-Px activity of internal control group was resoectively lower than that in the external control group, the differences being statistically significant(beth P < 0.05). Conclusions Selenium deficiency may lead to reduced antioxidant capacity and enhanced oxidative damage in Keshan disease patients in vivo. There may be a certain relationship between oxidative stress disorder and myocardial damage of Keshan disease.

BACKGROUNDLarge and giant medial sphenoid wing meningiomas that are located deeply in the skull base where they are closely bounded by cavernous sinus, optic nerve, and internal carotid artery make the gross resection hard to achieve. Also, this kind of meningiomas is often accompanied by a series of severe complications. Therefore, it was regarded as a formidable challenge to even the most experienced neurosurgeons. This study aimed to investigate the clinical features and management experience of patients with large and giant medial sphenoid wing meningiomas.

METHODSIn this study, 53 patients (33 female and 20 male, mean age of 47.5 years) with large and giant medial sphenoid wing meningiomas were treated surgically between April 2004 to March 2012, with their clinical features analyzed, management experience collected, and treatment results investigated retrospectively.

RESULTSIn this study, gross total resection (Simpson I and II) was applied in 44 patients (83%). Fifty-three patients had accepted the routine computed tomography scan and magnetic resonance imaging scan as postoperative neuroradiological evaluation. Their performance showed surgical complications of vascular lesions and helped us evaluate patients' conditions, respectively. Meanwhile, the drugs resisting cerebral angiospasm, such as Nimodipine, were infused in every postoperative patient through vein as routine. As a result, 11 patients (21%) were found to have secondary injury of cranial nerves II, III, and IV, and nine patients got recovered during the long-term observing follow-up period. Temporary surgical complications of vascular lesions occurred after surgery, such as cerebral angiospasm, ischemia, and edema; 24 patients (45%) appeared to have infarction and dyskinesia of limbs. Overall, visual ability was improved in 41 patients (77%). No patient died during the process.

CONCLUSIONSMicrosurgical treatment may be the most effective method for the large and giant medial sphenoid wing meningiomas. The surgical strategy should focus on survival and postoperative living quality.

Adult ; Aged ; Female ; Humans ; Male ; Meningeal Neoplasms ; blood supply ; surgery ; Meningioma ; blood supply ; surgery ; Middle Aged

OBJECTIVETo investigate the effective components of Astragalus mongholicus and their mechanisms in alleviating extracorporeal shock wave lithotripsy (ESWL) induced kidney injury.

METHOD69 male rabbits were randomly assigned into control group, sham treatment group, Total Saponins of Astragalus (TSA) group, Total Flavonoids of Astragalus (TFA) group, and Total Polysaccharide of Astragalus group (TPA). The shock wave treated kidneys were observed for the expression of p-selectin and the change of cells ultrastructure pre and post ESWL. The concentration of Maleic Dialdehyde (MDA) as well as activity of superoxide dismutase (SOD) in the kidney tissues was also analyzed.

RESULTAfter application of shock wave treatment, p-selectin was expressed extensively in renal glomerulus, renal tubules and renal interstitium of the treated kidneys. It showed a significant increase of MDA levels and decrease of SOD activity in control group (P < 0.05) after ESWL. The comparison between controls and TSA group demonstrated that TSA could significantly reduce the positive rate of p-selectin P < 0.05) and alleviate the injuries of cells ultrastructure. The results also showed a significant decrease of MDA levels and increase of SOD activity in TSA group compared to controls (P < 0.05). The protective effects of TFA and TPA in alleviating kidney injury induced by shock wave were lower than those of TSA; they had no effects of the expression of P-selectin.

CONCLUSIONTSA is the main components of A. mongholicus in alleviating shock wave induced kidney injury not only by scavenging oxygen free radicals but also inhibiting the expression of p-selectin.

Animals ; Astragalus membranaceus ; chemistry ; Flavonoids ; isolation & purification ; pharmacology ; Free Radical Scavengers ; pharmacology ; Kidney ; injuries ; metabolism ; pathology ; Kidney Glomerulus ; metabolism ; pathology ; Kidney Tubules ; metabolism ; pathology ; Lithotripsy ; adverse effects ; Male ; Malondialdehyde ; metabolism ; P-Selectin ; metabolism ; Plants, Medicinal ; chemistry ; Polysaccharides ; isolation & purification ; pharmacology ; Rabbits ; Random Allocation ; Saponins ; isolation & purification ; pharmacology ; Superoxide Dismutase ; metabolism

OBJECTIVETo investigate the protective effect of Heme oxygenase-1 (HO-1) gene transfer on rat renal autograft against ischemia/reperfusion injury.

METHODSHO-1 recombinant adenovirus vectors were constructed and transduced into rat renal autograft by renal arterial perfusion. The renal autografts were transplanted orthotopically after store at 4 degrees C for 24 h, followed by contralateral native nephrectomy 5 d after transplantation. There were 25 rats in the control group. 5 h and 3 d after transplantation, reverse transcriptase polymerase chain reaction (RT-PCR) and immunohistochemistry were used to detect the expression of HO-1 gene; enzyme-labeled immunosorbent (ELISA) was used to measure HO-1 protein content in the homogenate of renal autograft.

RESULTSThe intensity of HO-1mRNA expression at 3 h and 3 d after transplantation were 0.65 +/- 0.11, 0.86 +/- 0.17 in the experimental group and 0.09 +/- 0.01, 0.15 +/- 0.02 in the control group respectively. The differences between the two groups were significant (t = 14.38, 11.73, P < 0.05). HO-1 protein content at 3 h and 3 d after transplantation were significantly increased in the experimental group, as compared with the control group [(297 +/- 61) ng/g and (468 +/- 51) ng/g versus (98 +/- 30) ng/g and (155 +/- 31) ng/g; t = 8.27, 14.83, P < 0.05]. HO-1 transduced autografts had less renal ischemic injury and lower serum creatinine level compared with control animals (P < 0.05).

CONCLUSIONAdenoviral vector can successfully transduce rat kidneys with the HO-1cDNA, which can protect rat renal autografts from ischemia/reperfusion injury.

Adenoviridae ; genetics ; Animals ; Female ; Genetic Vectors ; Heme Oxygenase-1 ; biosynthesis ; genetics ; Kidney ; blood supply ; metabolism ; Kidney Transplantation ; Male ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; prevention & control ; Transfection ; Transplantation, Autologous

This study aimed to examine the optimal conditions of laser-induced interstitial thermotherapy (LITT) via a single-needle delivery system, and the ablation-related pathological and ultrasonic changes. Ultrasound (US)-guided LITT (EchoLaser system) was performed at the output power of 2-4 Wattage (W) for 1-10 min in ex vivo bovine liver. Based on the results of the ex vivo study, the output power of 3 and 4 W with different durations was applied to in vivo rabbit livers (n=24), and VX2 tumors implanted in the hind limbs of rabbits (n=24). The ablation area was histologically determined by hematoxylin-eosin (HE) staining. Traditional US and contrast enhanced ultrasound (CEUS) were used to evaluate the treatment outcomes. The results showed: (1) In the bovine liver, ablation disruption was grossly seen, including a strip-like ablation crater, a carbonization zone anteriorly along the fiber tip, and a surrounding gray-white coagulation zone. The coagulation area, 1.2 cm in length and 1.0 cm in width, was formed in the bovine liver subjected to the ablation at 3 W for 5 min and 4 W for 4 min, and it extended slightly with the ablation time. (2) In the rabbit liver, after LITT at 3 W for 3 min and more, the coagulation area with length greater than or equal to 1.2 cm, and width greater than or equal to 1.0 cm, was found. Similar coagulation area was seen in the implanted VX2 carcinoma at 3 W for 5 min. (3) Gross examination of the liver and carcinoma showed three distinct regions: ablation crater/carbonization, coagulation and congestion distributed from the center outwards. (4) Microscopy revealed four zones after LITT, including ablation crater/carbonization, coagulation, edema and congestion from the center outwards. A large area with coagulative necrosis was observed around a vessel in the peripheral area with edema and hyperemia. (5) The size of coagulation was consistent well to the CEUS findings. It was concluded that EchoLaser system at low power can produce a coagulation area larger than 1.0 cm×1.0 cm during a short time period. The real-time US imaging can be used to effectively guide and assess the treatment.
Animals ; Bone Neoplasms ; diagnostic imaging ; pathology ; therapy ; Cattle ; Hindlimb ; pathology ; Laser Therapy ; instrumentation ; methods ; Liver Diseases ; diagnostic imaging ; therapy ; Rabbits ; Treatment Outcome ; Ultrasonic Therapy ; instrumentation ; methods ; Ultrasonography

OBJECTIVETo investigate the clinical and laboratory features of acute myeloid leukemia (AML) with t(11;12)(p15;q13) translocation.

METHODSTwo cases of AML with t(11;12)(p15;q13) translocation were reported and the related literatures were reviewed.

RESULTSThe diagnosis of AML-M3 was supported by morphological, cytochemical staining and electron microscope tests. A rare t(11;12)(p15;q13) translocation, but not classical t(15;17)(q22;q12) translocation and PML- RARα fusion gene, was detected in both cases. Both of the patients were refractory to differentiation induction therapy such as retinoic acid and arsenic trioxide.

CONCLUSIONAML is a group of heterogeneous disease derived from hematopoietic stem cell. Cytogenetic characteristic is important for diagnosis, prognosis stratification and therapy selection. Because of the heterogeneity of clinical and molecular features, it is unsuitable to classify AML with t(11;12)(p15;q13) as AML with recurrent cytogenetic aberration. This group of disease may benefit from allogeneic hematopoietic stem cell transplantation.

Abnormal Karyotype ; Adolescent ; Chromosomes, Human, Pair 11 ; Chromosomes, Human, Pair 12 ; Humans ; Leukemia, Myeloid, Acute ; genetics ; therapy ; Male ; Middle Aged ; Prognosis ; Translocation, Genetic