Adolescent ; Adult ; Female ; Heart Rate ; physiology ; Humans ; Locomotion ; Male ; Military Personnel ; Multivariate Analysis ; Regression Analysis ; Weight-Bearing

Adenoma ; Adult ; Ear Neoplasms ; Ear, Middle ; pathology ; Humans ; Male

Objective To conclude the diagnostic methodology of unroofed coronary sinus (UCS) by two-dimensional echocardiography(2DE). Methods By analyzing the echocardiographic results of 16 UCS patients who were diagnosed by 2DE and confirmed by operation, the diagnostic methodology of UCS by 2DE was summarized. Results Sixteen patients with UCS were involved in this study. Among them, 12 cases were diagnosed as complete UCS,others were partial UCS(PUCS). Twelve patients were complicated with persistence of left superior vena cava (LSVC) that was connected to left atrium (LA) through UCS. All of preoperative diagnosis conducted by 2DE were finally confirmed to be consistent with the results of operation. With the analysis of acquired echo images,key points of diagnosis were concluded as follow: 1) normal coronary sinus (CS) could not be detected in the routine 2DE views referring CS. PUCS showed partial absence of CS roof,while complete UCS displayed as total absence of CS. 2)Inter-atrial shunt would definitely be found in UCS and the opening to right atrium must be coronary sinus orifice. The shunt direction was depended on the combined cardiac malformations. 3) With the occurrence of UCS,LSVC would be in junction with LA through UCS. 4) The inter-atrial shunt resulted in cardiac morphologic and hemodynamic changes. Conclusions Better understanding of the anatomic, morphological and hemodynamic characteristics of UCS would greatly contribute to accurate diagnosis on UCS.

Animals ; Feasibility Studies ; Female ; Mice ; Mice, Inbred BALB C ; Plethysmography ; methods ; Tidal Volume ; physiology

Objective To explore the role of monitoring the cellular immune function in preventing and treating the fungal infection in the recipients of liver transplantation. Methods 679 cadaveric liver transplantations (from Jan. 2004 to Jan. 2010) were retrospectively studied. All the cases were divided into 3 groups according to different treatments and preventing regimens. The patients in groups A, B, C were treated based on the clinical experiences (394 cases), T lymphocyte subsets counting (151 cases), and combination of ATP values of CD4+ T cell and T lymphocyte subsets counting (134 cases), respectively. The infection, mortality and acute rejection rate were analyzed. The relationship between fungal infection and cellular immune function was investigated.Results The fungal infection rate in groups A, B, and C was 28. 9 %, 21.2 %, and 19. 4 % (P<0. 05), the morbidity rate was 16. 7 %, 12. 5%, and 3. 8% (P>0. 05), and the acute rejection rate was 28. 4 %, 17. 2 %, and 13. 4 % (P<0. 01), respectively. The CD4+ T lymphocyte counting in all cases of fungal infection was (147±43)×106/L. The morbidity could reach 50. 0 % when the CD4+ T lymphocyte counting < 100 ×106/L, while it was 2. 4 % when the counting was between (100-200) ×106/L (P<0. 01). The CD4+ T lymphocyte counting had no linear relation with the ATP value.The ATP value in fungal infection cases was (117 ± 61)μg/L. Conclusion The cellular immune function test could be quantitatively evaluated according to the T lymphocyte subsets and ATP value of CD4+ T lymphocyte. And individualized immunosuppressive therapy could be adjusted accordingly.Therefore, cellular immune function could be instructive in preventing and treating the fungal infection after liver transplantation.

Aim To construct eukaryotic expression vector of shRNA(small hairpin RNA)for human SREBP-1(sterol regulation element binding protein-1)gene and explore its effects on lipid droplet formation in human renal proximal tubular epithelial cell line(HKC)under the stimulation of high glucose.Methods Two eukaryotic expression vectors of shRNA were constructed for human SREBP-1 gene.The HKC cells were transfected with negative control plasmid(pGenesil-1-HK)and two recombinant vectors(pGenesil-1-SREBP1-1 and pGenesil-1-SREBP1-2)and then were cultured under the stimulation of high glucose for about 48 h.The expression of SREBP-1 mRNA and FAS mRNA was detected by RT-PCR and SREBP-1 protein expression was investigated by Western blot.Lipid droplets were detected by Oil Red O staining.Results DNA sequencing showed that the target segments were successfully cloned into pGenesil-1 vector respectively.RT-PCR indicated that two recombinant vectors could inhibit the expression of SREBP-1 mRNA and FAS mRNA in HKC cells under the stimulation of high glucose.Similarly,SREBP-1 protein was also inhibited by the transfection with recombinant vectors.Oil Red O staining found that silencing of SREBP-1 gene resulted in lipid droplets decrease.Conclusions The eukaryotic expression vector of shRNA for human SREBP-1 gene was successfully constructed,and the expression of SREBP-1 was inhibited effectively by the expressed siRNA in HKC cells that resulted in lipid droplets decrease through FAS mRNA transcription inhibition.

OBJECTIVETo investigate the relationship between the second to the fourth digit ratio (2D:4D) and body mass index (BMI) in infertile men of the Han ethnic group in Ningxia.

METHODSUsing anthropometry, we calculated the mean ratio of 2D:4D and BMI of 197 infertile men and 148 normal healthy male controls, followed by analysis of their relationship.

RESULTSThe BMI was correlated positively with the 2D:4D ratio of the left hand in the infertile men (P < 0.05) and in the patients with a higher 2D:4D ratio of the left hand (P < 0.05), but negatively with the 2D:4D ratio of the righ/left (Dr-1) (left: P < 0.01; Dr-l: P < 0.05). The mean 2D: 4D ratio and BMI were both lower in the normal control than in the infertile men, with statistically significant differences in BMI (P < 0.05) and the 2D:4D ratio of the left hand (P < 0.05).

CONCLUSIONThere is a correlation between the 2D:4D ratio and BMI in infertile men.

Body Mass Index ; Case-Control Studies ; Fingers ; anatomy & histology ; Humans ; Infertility, Male ; diagnosis ; Male

OBJECTIVETo study the effects of dopamin receptors-2 (DR2) on myocardial ischemic postconditioning and explore its underlying mechanisms.

METHODSThe myocardial ischemic postconditioning (PC) model was established in cultured primary rat neonatal cardiomyocytes which were then randomly assigned in the following groups: Nomial control group, Isehemia/reperfusion (L'R) group, PC (ischemic postconditioning) group, PC + Bro (Bromocriptine, a DB2 antagonist) group, PC + Hal (Haloperidol, a DB2 repressor) and PC + Hal + Bro groups. The lactate dehydrogenase (LDH) and superoxide dismutase (SOD) activity and malondialdehyde (MDA) content in cell medium were analyzed by colorunetry. The cell ultrastructure changes were observed by transmission electron microscope. The cell apoptosis was analyzed using flowcytometiy. The protein expression level of D112 and activity of p-p38 and p-JNK were detected by Western blot.

RESULTSCompared with the nonnal control group, hR increased the protein expression level of DB2, enhanced LDH activity and MDA content, promoted cell injury and apoptosis, decreased SOD activity, up-regulated the activity of p-p38 and p-JNK. Compared with the hR group, although PC further increased the expression of DR2 protein, it decreased LDH activity and MDA content, cell injury and apoptosis, increased SOD activity, down-regulated activity of p-p38 and p-JNK. Bromocriptine treatment further enhanced PC-induced canlioprotective effect, yet Hal addition attenuated this enhancing effect exerted by bromocriptine.

CONCLUSIONThe activation of DB2 is involved in the protective effect of ischemic postconditioning on myocardial ischemia/reperfusion injury through down-regulating the activity of p-p38 and p-JNK.

Animals ; Apoptosis ; Cells, Cultured ; Ischemic Postconditioning ; JNK Mitogen-Activated Protein Kinases ; metabolism ; Myocardial Reperfusion Injury ; prevention & control ; Myocytes, Cardiac ; pathology ; Rats ; Rats, Wistar ; Receptors, Dopamine D2 ; physiology ; p38 Mitogen-Activated Protein Kinases ; metabolism

ObjectiveTo investigate the clinical manifestation, mechanism and optimal treatment of hydronephrosis after spinal cord injury. Methods58 slight and moderate cases were retrospectively analyzed. ResultsThere were no differences in the remitted time among the therapies of indwelling catheter, intermittent catheterization and medicine, mixed therapy. 56 (96.55%) SCI hydronephrosis remitted after treatment, 28(48.28%) recurred within 3 months. The recurrence rate of the patients with detrusor sphincter dyssynergia (57.14%) was higher than that of the detrusor hyperreflexia (28.57%) and the detrusor hyporeflexia (14.29%). The recurrence was associated with the fact that many patients couldn't keep up with the systematic therapy.ConclusionThe onset of SCI hydronephrosis is indistinct and recurrent easily. Keeping up with intermittent catheterization and taking medicine can prevent SCI hydronephrosis recurrence effectively.

Human cytomegalovirus (HCMV) is a DNA virus and serious opportunistic pathogen for both newborn and immunocompromised individuals.To research technique for gene silence and antiviral agents, ribozyme M1GS-T6 was constructed from external guide sequences(EGSs)that consist of a sequence complementary to HCMV UL54 gene RNA and M1 RNA, the catalytic RNA subunit of RNase P from Escherichia coli. The results showed that M1GS can efficiently cleave the mRNA sequence encoding UL54 protein in vitro.