Objective To study the influence of sivelestat sodium on platelets activity,injury and count during cardiopulmonary bypass (CPB)in dogs.Methods Twelve adult health dogs were randomly divided into control group (group C,n=6)and sivelestat sodium group (group S,n=6). Sivelestat sodium at 15 mg/kg was administrated intravenously before the establishment of CPB and then was maintained intravenously at 10 mg·kg-1·h-1 to the end of CPB in the group S,and the same volume of saline was used in the group S.The levels of neutrophil elastase (NE),malondialdehyde (MDA),granular membrane protein-140 (GMP-140),thromboxaneB2 (TXB2 ),the count of plate-lets and the hematocrit (Hct)were measured before CPB,15 and 45 min after cross-clamping and 30, and 60 min after aortic unclamping in both groups.Results The levels of NE,GMP-140,TXB2 at T2-T5 and MDA at T3-T5 were significantly higher than those at T1 in both groups;moreover the lev-els were significantly lower in group S than group C (P<0.05).The levels of Plt at T2-T5 were sig-nificantly lower than those at T1 in both groups;moreover the levels were significantly higher in group S than group C (P <0.05).Conclusion Sivelestat sodium reduced the levels of plasma NE, MDA,GMP-140,TXB2 inhibited the activation of Plt,and decreased the injury and consumption of Plt,which presents the protective effects for Plt during CPB.

OBJECTIVETo observe the effect of Shenfu Injection (SFI) on erythrocyte immunity function of patients undergoing cardiopulmonary bypass (CPB).

METHODSTwenty patients scheduled for valve replacement were randomly assigned to two groups, i.e. , the SFI group and the control group, 10 in each. SFI 1 mL/kg was intravenously dripped before induction of anesthesia and SFI 1 mL/kg administered in priming solution in the SFI group, while only normal saline was given to those in the control group. Venous blood samples (5 mL) were collected before induction of anesthesia (T1), 30 min CPB (T2), immediate by the end of CPB (T3), and postoperative 24 h (T4) respectively in all groups. The levels of the rosette rate of RBC-C3b receptor (RBC-C3bRR), the rosette rate of RBC-immune complex (RBC-ICR), plasma malondialdehyde (MDA), free hemoglobin (FHB), and interleukin-6 (IL-6) were detected.

RESULTSThere was no significant difference in the levels of RBC-C3bRR, RBC-ICR, plasma MDA, FHB, and IL-6 at T1 in both groups (P > 0.05). RBC-C3bRR at the rest time points was lower in the two groups than before induction of anesthesia. There was no statistical difference in FHB or IL-6 between T4 and T1 in the SFI group. The levels of RBC-ICR, MDA, FHB, and IL-6 increased in the two groups more than before induction of anesthesia at T2-4 ( P < 0.05). Besides, the RBC-C3b RR was lower, and levels of RBC-ICR, MDA, FHB, and IL-6 higher in the control group than in the SFI group, showing significant difference (P <0.05).

CONCLUSIONSFI could decrease the generation of inflammatory mediators during CPB, improve the erythrocyte immune function of patients during CPB, and reduce the risk of postoperative infection.

Adult ; Antigen-Antibody Complex ; blood ; Cardiopulmonary Bypass ; Drugs, Chinese Herbal ; pharmacology ; Erythrocytes ; drug effects ; immunology ; Female ; Hemoglobins ; analysis ; Humans ; Injections ; Interleukin-6 ; blood ; Male ; Malondialdehyde ; blood ; Middle Aged ; Receptors, Complement 3b ; metabolism

In our previous study, normal and fertile mice were successful produced from oocytes following intracytoplasmic sperm injection (ICSI). In the present study, the possibility of producing transgenic embryos and offspring with this procedure was evaluated. After freezing-thawed once using HEPES-CZB medium without cryoprotectants, the cauda sperm from KM fertile male were exposed to the circular or linear pEGFP-N1 DNA for 1 min and then co-injected into metaphase II oocytes of B6D2F1 strain. When the zygotes with two pronuclei were cultured in CZB medium to day 3.5, 39.1% (9/23) of them, derived from oocytes co-injected with sperm head and pEGFP-N1 plasmid DNA, were expressed GFP protein. After transfer of the ICSI embryos with two pronuclei from co-injection of sperm head and foreign DNA, seven recipients delivered 30 pups (23.8%, 30/126). Southern blot results revealed that three of sixteen offspring integrated with GFP and neomycin genes together (18.8 %). Interestingly, all of them were produced from oocytes co-injected sperm head and linear DNA (33.3%, 3/9), while none of seven ICSI offspring integrated either GFP or neomycin gene in the group of co-injection of sperm head and circular plasmid DNA. These results indicated that the high efficiency of transgenic mouse could be produced by ICSI. It may be shown that linear DNA is more easily to integrate into host genome than circular DNA when ICSI was used to produce transgenic animals.
Animals ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Mice, Transgenic ; genetics ; Sperm Injections, Intracytoplasmic ; methods

OBJECTIVETo analyze the epidemiological features of the index cases of severe acute respiratory syndrome (SARS) occurred in different cities in Guangdong province and to trace for the source of infection.

METHODSStandardized individual case inventory was adopted to conduct investigation on index cases and on persons who had close contact with index cases in Guangdong province. Data on the epidemiological characteristics, secondary cases and the links among index cases were analyzed.

RESULTSBetween November 16, 2002 and April 16, 2003, there had been 13 index cases of SARS including 3 cadres, 3 farmers, 2 retirees, 2 workers and 1 shop attendant, reported from 13 cities in Guangdong province. Between November 2002 and January 2003, there had been 7 cities reported to have identified index cases of SARS with 6 of them being infected in their own cities and 1 imported from Guangzhou city. All of the cases had no close contacts to similar patients but 6 of them later caused 2nd or even 3rd generation cases of SARS. Most cases hit young people (7/13) with a sex ratio of 1:0.6. The fatality rate of index cases was high (4/13).

CONCLUSIONNo evidence showed that there was direct transmission among the index cases. Data regarding the geographical origin of those index cases led to the assumption that the infection had started in six cities of Pearl river delta region and the Hong Kong Special Administrative Region.

Adolescent ; Adult ; Aged ; China ; epidemiology ; Contact Tracing ; Female ; Hong Kong ; epidemiology ; Humans ; Male ; Middle Aged ; Prevalence ; Severe Acute Respiratory Syndrome ; epidemiology ; transmission

OBJECTIVEThis study was to establish a model that adenovirus type 3 (HAdV-3) infected on Hep-2 cell in order to explore anti-adenovirus3 (HAdV-3) effect of Chinese medicine realgar in vitro.

METHODUse high-energy ball milling with distilled water to prepare realgar nanoparticles. The concentration of nanometer realgar was tested by molybdenum blue staining method and realgar nanoparticles' particle size was tested on Nano Series. The technique of cell culture with ribavirin as positiv control was to observe anti-adenovirus effect through prevention, treatment and direct inactivation of three kinds of drug delivery.

RESULTThis drug was found to be a potential inhibitor of HAdV-3 in a concentration-dependent manner with the median toxic concentration (TC50) of 0.649 microg/ml in Hep-2 Cell culture. The median inhibition concentration (IC50) was 0.255 microg/ml when drug was added before infection. The IC50 was 0.142 microg/ml when drug was added after virus infection, and it was 0.117 microg/ml as the drug was added after it mixed with virus. The therapeutic index (TI) was 2.55, 4.57 and 5.55 respectively.

CONCLUSIONThe direct inactivation effect of realgar nanoparticles is the most evident in three drug deliveries manner with the same concentration in vitro.

Adenoviridae ; drug effects ; Arsenicals ; administration & dosage ; pharmacology ; Dose-Response Relationship, Drug ; Drug Delivery Systems ; Humans ; Nanoparticles ; Sulfides ; administration & dosage ; pharmacology

This study was to establish a model to explore anti- RSV effect of different administration method of Chinese medicine realgar on respiratory syncytial virus type A (RSV-A) replication in Hep-2 cells. Using high-energy ball milling with distilled water to prepare realgar nanoparticles,the concentration of nanometer realgar was tested by molybdenum blue staining method and the size of realgar nanoparticles was tested on Nano Series. Cell culture with ribavirin as a positive control was applied to observe the effect of anti-respiratory syncytial virus type A replication through prevention, treatment or direct inactivation of three different drug administration methods. Realgar nano-particles was found to be a potential inhibitor of RSV-A in a concentration-dependent manner with the median toxic concentration(TC50) of 0.649 microg/mL in Hep-2 cell culture. The median inhibition concentration (IC50) was 0.20 microg/mL when drug was added before virus infection. The IC50 was 0.13 microg/mL when drug was added after virus infection,and it was 0.16 microg/mL when the drug was mixed with virus and added. The therapeutic index (TI) was 3.18, 4.99 and 4.11, respectively. The results showed realgar nanoparticles could inhibit the replication of the RSV and inactivate the RSV in vitro.
Arsenicals ; pharmacology ; Nanoparticles ; Respiratory Syncytial Viruses ; drug effects ; physiology ; Sulfides ; pharmacology ; Virus Replication ; drug effects

OBJECTIVETo improve clinicians' ability of diagnosing testicular torsion.

METHODSWe reviewed the data of a case of testicular torsion that resulted in necrosis because of delayed presentation and repeated misdiagnosis, and analyzed its anatomic features, clinical manifestations, ultrasound results, the causes of misdiagnosis and relevant literature.

RESULTSThe patient presented 5 hours after the onset of symptoms, complaining of severe paroxysmal pain in the lower left abdomen, accompanied with nausea and vomiting, and was twice misdiagnosed as having enterospasm or ureteral calculus at two different hospitals. Fifteen hours later, surgical exploration revealed an about 900-degree testicular torsion in the spermatic cord, which necessitated orchiectomy for non viability of the testis. Postoperative pathological examination confirmed testicular necrosis and diffused hemorrhage in the testis and epididymis.

CONCLUSIONTimely presentation, correct diagnosis and proper treatment are keys to saving the affected testis. Color Doppler ultrasound is an ideal option for the definite diagnosis of acute scrotal diseases, and it offers a valuable guidance for related surgery as well.

Adult ; Diagnostic Errors ; Humans ; Male ; Necrosis ; Spermatic Cord Torsion ; diagnosis ; Testis ; pathology

OBJECTIVETo determine whether there are any associations between the -258T/G polymorphism of the promoter and the IVS3 -20T/C polymorphism in parkin gene and Parkinson's disease (PD) from a Han population in Sichuan province.

METHODSPolymerase chain reaction (PCR), restriction fragment length polymorphism, denaturing high performance liquid chromatography(dHPLC) and sequence analysis were used to determine the genotype of each subject. The -258T/G polymorphism and IVS3 -20T/C polymorphism were analysed in 198 patients with sporadic PD and 187 healthy controls, matched for age and gender.

RESULTSThere were significant differences in allele frequency of the -258T/G polymorphism between PD patients and controls, with the G allele more common in cases than controls (52.5% vs 43.3%; chi square is 6.17, P< 0.025, OR is 1.45, 95% CI 1.04-1.86). There were also significant differences in G allele frequency between PD patients with onset age over 50 years old and controls(chi square is 9.048, P< 0.01, OR is 1.57, 95% CI:1.08-2.06). The frequency of TG+GG genotype was significantly higher in PD patients than in controls (78.79% vs 69.51%; chi square is 3.854, P< 0.05, OR is 1.63, 95% CI:0.88-2.38). In addition, there were significant differences in age of onset between PD patients with different genotypes (P< 0.05). The average age of onset in group of GG genotype was later about 5 years compared with the group of TT or TG genotype. The frequency of CC genotype in IVS3 -20T/C polymorphism was much higher than that of TC genotype. No TT genotype was found.

CONCLUSIONThis study suggests that the parkin promoter -258T/G polymorphism might be a risk factor for late onset PD in Sichuan. CC genotype for IVS3 -20T/C polymorphism is common in Sichuan Han population. No TT genotype for IVS3 -20T/C polymorphism is found in Sichuan Han population.

Adult ; Aged ; Aged, 80 and over ; Asian Continental Ancestry Group ; genetics ; China ; Chromatography, High Pressure Liquid ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; genetics ; Genotype ; Humans ; Male ; Middle Aged ; Parkinson Disease ; ethnology ; genetics ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Polymorphism, Restriction Fragment Length ; Promoter Regions, Genetic ; genetics ; Ubiquitin-Protein Ligases ; genetics

OBJECTIVETo study the related factors of central lymph node (CLN) metastasis in papillary thyroid carcinoma (PTC),the indications and the extent of central neck dissection (CND).

METHODSA total of 153 cases treated between Jan. 2009 and Dec. 2010 was analysed retrospectively. Of the cases 28 males and 125 cases females, with a mean age of (44 ± 14) years. T1, T2, and T3 diseases accounted for 51, 10 and 81 cases, respectively; I, II, III and IV diseases for 88, 3, 26 and 36 cases, respectively. Multifocal tumors were found in 63 cases. The related clinicopathologic factors were analyzed, including sex, age, tumor size, extrathyroidal extension, and multifocal tumor.

RESULTSAll the cases had total/near total thyroidectomy and CND, of them 64 cases had unilateral neck dissection and 18 cases had bilateral neck dissection. CLN metastases existed in 68.6% (105/153) cases, 37.2% (57/153) for unilateral and 31.4% (48/153) for bilateral respectively. The rates of CLN metastasis were 86.6% (71/82) in cN1 cases and 47.9% (34/71) cN0 cases, respectively,and the rates of bilateral CLN metastases were 45.1% (37/82) in cN1 cases and 15.5% (11/71) in cN0 cases. Multivariate analysis showed that extrathyroidal extension (P = 0.002, OR = 3.502) was an independent risk factor for CLN metastasis and that lateral neck lymph node metastasis (P = 0.028, OR = 3.080), surrounding tissue invasion (P = 0.014, OR = 3.113), and maximum tumor diameter greater than 1 cm (P = 0.012, OR = 3.732) were independent risk factors for bilateral CLN metastases.

CONCLUSIONSIt is indicated that ipsilateral CND should be obligatory for PTC. Intraoperative frozen section examination should be routine. Bilateral CND should be conducted when ipsilateral CLN metastases accompanied by one of following issues such as more invasive tumor (surrounding tissue invasion, T3 or T4 disease), maximum tumor diameter greater than 1 cm, and lateral neck lymph node metastasis.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Carcinoma ; pathology ; Carcinoma, Papillary ; Child ; Female ; Humans ; Lymphatic Metastasis ; Male ; Middle Aged ; Neck Dissection ; Retrospective Studies ; Thyroid Neoplasms ; pathology ; Young Adult

The application status of acupuncture and moxibustion therapy for assisted reproductive field in the United States was analyzed, and the existing problems and future development directions were discussed. According to the survey on the 456 websites of assisted reproductive clinic in the United States mentioned in the report of U.S. Centers for Disease Control and Prevention (CDC), 111 clinics among 456 assisted reproductive clinics recommend and used acupuncture and moxibustion therapy, accounting for 24.3%. Acupuncture and moxibustion therapy had obvious effect, good safety and low cost, and the assisted reproductive institutions in the United States had a high degree of application and recognition to acupuncture and moxibustion therapy. However, some problems, such as immature treatment scheme, unclear mechanism and imperfect insurance policies, still existed. In the future, the advantages of Chinese traditional acupuncture and moxibustion should combine with international modern assisted reproductive technology, and multi-center and large-sample clinical randomized controlled trials and basic experimental research on the mechanism of acupuncture and moxibustion for assisted reproduction should be carried out.
Acupuncture ; Acupuncture Therapy ; Medicine, Chinese Traditional ; Moxibustion ; Reproduction ; United States