OBJECTIVE:To study the effects of Shenfu qiangxin(SFQX)pills on the expression of autophagy-associated pro-tein LC3b and pro apoptotic gene Bax in myocardial cells of rats with cardiorenal syndrome (CRS). METHODS:Rats were ran-domly divided into sham operation group(water),model group(water),positive control group(Captopril tablets 2.3 mg/kg)and SFQX pills high-dose,medium-dose and low-dose groups [13.2,6.6,3.3 g(crude drug)/kg],with 10 rats in each group. CRS mod-el was induced in those groups by abdominal-aortae-constriction+acute renal ischemia reperfusion injury except for sham operation group;and they were given relevant medicine intragastrically 8 week after operation,once a day,for consecutive 4 weeks. Plasma contents of Cr and ALD,the protein expression of LC3b and Bax in myocardial tissue of rats were detected 24 h after last medica-tion;ventricular index was calculated,and morphological change of myocardial tissue was observed. RESULTS:Compared with sham operation group,the plasma contents of Cr and ALD,ventricular index and the protein expression of LC3b in myocardial tis-sue increased significantly in model group (P<0.05 or P<0.01);and myocardial cell suffered from endochylema red deletion, myocardial cross striation disorder,intercellular space fibrosis aggravation and so on. Compared with model group,the plasma con-tents of Cr and ALD(except for positive control group)and the protein expression of LC3b and Bax in myocardial tissue decreased significantly in positive control group and SFQX pills high-dose group(P<0.05 or P<0.01);myocardial pathological change was improved;the ventricular index decreased significantly in SFQX pills low-dose and medium-dose groups (P<0.05). CONCLU-SIONS:SFQX pills can decrease the plasma contents of Cr and ALD,inhibit myocardial cell autophagy and apoptosis in CRS rats.

Objective To analyze the correlation factors between CT imaging features of pulmonary embolism(PE)and clinical severity stratification,to explore the value of CT pulmonary angiography (CTPA)in acute PE severity stratification.Methods According to the clinical severity,48 patients with acute PE proved by CTPA were classified into two groups,including 21 critical and 27 non-critical patients. Embolism index,ratio of central pulmonary involvement,ratio of right ventricle maximum minor axis (RVMMA)to left ventricle maximum minor axis(LVMMA),namely RV:LV,dilation of main pulmonary and/or right pulmonary trunk,and dilation of bronchial arteries in both groups were analyzed comparatively. The correlation factors between CT imaging features and PE clinical severity stratification were explored.The correlation between RV:LV and embolism index of 48 patients was analyzed.Results Pulmonary embolism index(22.0%—85.0%,median 38.0%),ratio of central pulmonary involvement(42.5%),RV:LV (0.90—1.90,median 1.30),dilation of pulmonary artery(14 cases),and dilation of bronchial artery (8 cases)in critical group(21 cases)were higher than those corresponding factors(5%—48%,median 21.5%,31.25%,0.80—1.40,median 1.00,5 eases,and 3 eases)in non-critical group(27 cases) (Z=4.27,X~2=5.40,Z=2.58,X~2=11.45,X~2=4.87,P

Objective: To establish the cardio-renal syndrome (CRS) model by coarctation of abdominal aorta (CAA) with renal ischemia reperfusion injury (RIRI), and to observe the mRNA expression of pro-renin receptor [(P)RR] in experimental rats. Methods: A total of 42 Wistar rats were randomly divided into 4 groups: Sham group, CAA group, RIRI group and CAA+RIRI group.n=10 in each group, 2 rats died during the modeling and all animals were treated for 16 weeks. Blood levels of BNP, creatinine (Cr), urea nitrogen (BUN), the activity of rennin, the contents of angiotensin-I (AT-I), AT-II and aldosterone were examined by laboratory test. The diastolic end inter-ventricular septum thickness (DEIVST), DELVPT, LVEF, ventricular weight index (VWI) and cardiac weight index were detected by small animal echocardiography. The histological changes of myocardium and kidney tissue were measured by HE staining, and the mRNA expressions of pro-renin receptor in myocardium and kidney tissues were measured by RT-PCR. Results: Compared with Sham group, blood levels of BNP were increased in the other 3 groups,P<0.05; compared with CAA group, CAA+RIRI group had increased levels of Cr and BUN,P<0.01; compared with Sham group and RIRI group, CAA+RIRI group showed increased blood level of aldosterone,P<0.05. Compared with CAA group, CAA+RIRI group presented increased rennin activity,P<0.05. Blood levels of AT-I and AT-II were not signiifcantly increased among 3 operation groups,P>0.05. Compared with CAA group, CAA+RIRI group had more obvious changes of DEIVST and LVEF,P<0.01. Compared with RIRI group, CAA+RIRI group had more obvious ventricular hypertrophy, higher VWI and cardiac weight index, allP<0.05. HE staining presented that CAA+RIRI group had broadening of myocardial cell bundle space, decreased left renal index, severe tubular atrophy and partial glomerular atrophy. RT-PCR demonstrated that compared with Sham group, the mRNA expressions of pro-renin receptor in myocardium and kidney tissues were decreased in the other 3 groups. Conclusion: Combined CAA+RIRI method may damage the cardial and renal tissues at the same time which was more severe than either CAA or RIRI. While CAA+RIRI model has better controllability and higher consistency that provides a methodological reference for pro-renin receptor in treating CRS in experimental rat’s model.

OBJECTIVETo investigate the perioperative characteristics and surgical methods in treating the old with degenerative lumbar spinal stenosis.

METHODSFrom January 2000 to October 2007, 36 patients with degenerative lumbar spinal stenosis with the age more than 60 years,including 16 males and 20 females, the age from 60 to 81 years with an average of 67.5 years. Of all patients, 6 cases were treated by simple surgical decompression, 16 cases by decompressive laminectomy, 20 cases by decompressive laminectomy combined with internal fixation and fusion.

RESULTSNo death cases occurred during perioperation and complication occurred in 14 cases, including cerebrospinal fluid leakage in 3 cases, incision late healed in 1 case, heart abnormal symptom in 1 case, respiratory infection in 1 case, gastrointestinal symptom in 4 cases, urinary system infection in 1 case, spirital symptom in 1 case. After symptomatic treatment, all complications improved. All the cases were followed up from 6 months to 5 years with an average of 2.5 years. Oswestry scoring improved from preoperative 45.66 +/- 7.12 to postoperative 16.80 +/- 5.75, there was significant difference between before and after operation (P < 0.05).

CONCLUSIONThe age and heath condition are not operative absolute contraindication in treating old with degenerative lumbar spinal stenosis,with the proper operation modus after controlling concomitant diseases, the surgical treatment could guarantee the satisfactory therapeutic effect.

Aged ; Aged, 80 and over ; Female ; Follow-Up Studies ; Humans ; Lumbar Vertebrae ; pathology ; surgery ; Male ; Middle Aged ; Postoperative Complications ; etiology ; Retrospective Studies ; Spinal Stenosis ; physiopathology ; surgery ; therapy ; Treatment Outcome

Objective To investigate the clinical features of these children with congenital hyperinsulinism (CHI) who had no response to diazoxide and provide a theoretical foundation for the formulation of CHI treatment strategy.Methods Eighteen patients with CHI who had no response to diazoxide hospitalized in Beijing Children's Hospital from 2008 to 2012 were chosen as research subjects.Their clinical data were analyzed retrospectively.Results There were 18 patients with persistent hypoglycemia after using diazoxide,which indicated that they had no response to diazoxide.Twelve patients of them were born as macrosomia and their onset age was less than 6 months.Half of the children(9/18 cases) even had hypoglycemia in neonatal period.All the manifestations were conformed to the clinical characteristics of ATP-sensitive potassium channel CHI.Four children who were unresponsive to diazoxide received octreotide treatment,and it was effective on them.Four patients had a near-total pancreatectomy.After a long-term followup study,their blood sugar maintained a normal level,and they did not appear serious postoperative complications.Conclusions Children with CHI who have no response to diazoxide are characterized by coming earlier and higher birth weight.Octreotide is proposed in case of non-response to diazoxide.When medical treatment is not efficient in prevention of hypoglycemia,a subtotal pancreatectomy has to be considered as a last resort.

Objective To study the relationship between cyclic adenosine monophosphate/protein kinase A (cAMP/PKA) pathway and glutamine-stimulated insulin secretion.Methods In the prerequisite of the existence of glucose(0.25 mmol/L),the insulin secretion of βHC9 cells was stimulated with different concentrations of glutamine (0.0,0.5,1.0,2.0,5.0 mmol/L),then culture liquids were extracted and centrifugalized,and the insulin levels in the cell culture liquids and the cAMP levels in βHC9 cells were determined,so as to study the effects of glutamine stimulation on the insulin level in cell culture liquids and cAMP levels in βHC9 cells were assayed.Results In the prerequisite of the glucose existence,with the increasing of the concentrations of glutamine(0.0,0.5,1.0,2.0,5.0 mmol/L),the insulin levels[0.0 ng/(mL · million),19.1 ng/(mL · million),29.1 ng/(mL · million),30.1 ng/(mL · million),33.9 ng/(mL · million)] in cell culture liquids and the cAMP levels (0.0 pmol/million,40.0 pmol/million,51.5 pmol/million,52.5 pmol/million,61.3 pmoL/million) in βHC9 cells increased accordingly.Conclusion Glutamine has amplifying effect on glucose stimulated insulin secretion,such amplifying effect needs the existence of cAMP to be prerequisite.

OBJECTIVETo study HPeV from stool samples of children with acute gastroenteritis under 5 years old.

METHODSWe conducted a real-time PCR to detect HPeV from stool samples and to amply VP1 sequence by nested RT-PCR to identify HPeV type.

RESULTSThe results showed that 27 of 306 (8.82%) children with acute gastroenteritis were infected HPeV. 11 strains were typed. 9 strains HPeV1, both HPeV2 and HPeV4 was 1 strain. HPeV was mostly identified in autumn season with a peak in July. HPeV seemed relevant in children >2 years old. The range of nucleotide identity between all isolated strains with reference strains was 79%-92%.

CONCLUSIONEpidemiology characteristic of HPeV in Jilin was concordance with that of reports. HPeV3 wasnt detected. It's significant to conduct the large scale and long-term surveillance of HPeV.

Acute Disease ; Child, Preschool ; Female ; Gastroenteritis ; epidemiology ; virology ; Humans ; Infant ; Male ; Parechovirus ; classification ; genetics ; isolation & purification ; Phylogeny

Two Rotavirus G9P[8] strains (LL52696 and LL52727) were recognized during a sentinel-based survey in Lulong, China. Phylogenetic analysis of the VP7 gene showed that both strains isolated constituted a divergent genetic cluster distinct from the other G9 strains isolated in China. Analysis of VP4, VP6, and NSP4 genes revealed that these strains were closely related to Lulong strains. We hold that two strains were reassortant between G9 and Lulong predominant strains.
Amino Acid Sequence ; Antigens, Viral ; chemistry ; genetics ; Base Sequence ; Capsid Proteins ; chemistry ; genetics ; Glycoproteins ; chemistry ; genetics ; Humans ; Phylogeny ; Rotavirus ; classification ; genetics ; Toxins, Biological ; chemistry ; genetics ; Viral Nonstructural Proteins ; chemistry ; genetics

OBJECTIVETo collect background information on drug resistance mutations in treatment-naïve HIV-1 infected individuals in Liaoning Province.

METHODSSamples from 91 antiretroviral therapy-naïve patients were collected. The entire protease gene and 1-290 amino acids of the reverse transcriptase gene were amplified by nested PCR from provirus DNA and sequenced. The results were analyzed with HIVdb-Drug Resistance Algorithm, and genotypic resistance mutations were determined to particular anti-HIV drugs.

RESULTSTotally 91 sequences were obtained, 3 of which displayed M46I mutations in the protease gene. Minor resistance mutation rate to protease inhibitors was 100%, including types of L63P (60.4%), V77I (60.4%), M36I/V (31.9%), A71V/T (22.0%), L10I (8.8%), and K20R (6.6%). Only one sequence carried reverse transcriptase related resistance mutations M184I.

CONCLUSIONSAbout 4.4% of HIV-1 infected individuals in Liaoning Province carried strains with drug resistance mutations. Most treatment-naïve HIV-1 infected individuals in Liaoning Province were sensitive to the currently available antiviral medicines, but antiviral treatment must be in accordance with the strict procedures to keep better adherence and avoid the prevalence of drug-resistant strains.

Adult ; China ; epidemiology ; Drug Resistance, Viral ; genetics ; Female ; HIV Infections ; drug therapy ; epidemiology ; HIV Protease ; genetics ; HIV Reverse Transcriptase ; genetics ; HIV-1 ; genetics ; Humans ; Male ; Molecular Epidemiology ; Mutation ; Sequence Analysis, DNA

OBJECTIVETo study the polymorphisms and secondary structure of human immunodeficiency virus (HIV-1) tat exon 1 among subtype B' and B'/C HIV-1 infected people in China and to explore the relationship between the polymorphism of tat exon 1 and the disease progression.

METHODS8 subtype B' and 5 B'/C HIV-1 infected patients with slow disease progression were selected from Liaoning, Jilin and Yunnan province. 26 subtype B' and 9 B'/C HIV-1 infected patients with similar sex, age but with typical disease progression were selected. Provirus was extracted from the whole blood. The gene sequences of the Tat exon 1 were amplified by nest-polymerase chain reaction (nest-PCR). Products were purified and sequenced directly. The sequences were aligned, translated, amino acid substitution were analyzed and secondary structures were predicted.

RESULTSMany amino acid substitution could be found in the exon 1 of Tat in HIV-1 subtype B' and B'/C recombinant strain infected persons with different disease progression except A58T,none of them showed definitely relationship with HIV viral load and disease progression. 23N, 31S, 32Y and 46F were subtype-specific substitutions. No characteristic secondary structure of exon 1 of Tat was found.

CONCLUSIONSome of the mutations of tat exon 1 might be related to HIV viral load and disease progression. However, there was no relationship found between the secondary structure of Tat protein and the disease progression.

Acquired Immunodeficiency Syndrome ; genetics ; pathology ; Amino Acid Substitution ; Disease Progression ; Exons ; genetics ; Genes, tat ; genetics ; HIV Infections ; genetics ; pathology ; Human Immunodeficiency Virus Proteins ; genetics ; Humans ; Polymorphism, Genetic ; Viral Load