1.Auxiliary partial orthotopic liver transplantation in mice
Qi CHENG ; Dan GAO ; Xin LONG ; Xiaoping CHEN ; Peng ZHU
Chinese Journal of Organ Transplantation 2014;35(9):552-554
Objective To explore the technique of auxiliary partial orthotopic liver transplantation model in C57BL/6 mice.Method The donor portal vein and hepatic vein were anastomosed with Cuff and suture techniques respectively.The donor bile duct was implanted into recipient duodenum.Result The operation time of harvesting donor's liver and anhepatic phase and recipient was (30 ± 3),(6-± 1) and (58 ± 5) min respectively.The model success rate was 96%,and the 4-week survival rate was 88%.Conclusion The animal model was stable with high success-rate and can be used for the study of auxiliary partial orthotopic liver transplantation.
2.The Effect of HSVⅠ Infection on the Expression of hnRNP H2 in Human Fetal Liver Cell
Sai-Feng WANG ; Wei CUN ; Cheng-Hong DONG ; Ming HONG ; Long-Ding LIU ; Qi-Han LI ;
China Biotechnology 2006;0(06):-
Herpes simplex virusⅠ(HSVⅠ) regulating the pathway of transcription and translation modify in host cell is a very systematic and complicate system. A clear understanding of the concrete mechanisms of infection will greatly help to comprehend the virus replication and the interaction with the host cell. By the analysis of 2-DE, the heterogeneous nuclear ribonucleoprotein H2 in human fetal liver cell represent distinction after the HSVⅠinfection.Utilization of Northern blot and Western blot technologies verified the expression of hnRNP H2 in different stage of virus infection is varied.
3.Effects of long-term administration of low-dose FTY720 on survival of murine cardiac allograft.
Qi, CHENG ; Dan, LI ; Huifang, LIANG ; Hongqiang, YANG ; Dou, LEI ; Dan, GAO ; Xin, LONG ; Yifa, CHEN ; Peng, ZHU ; Xiaoping, CHEN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2012;32(2):199-204
This study examined the effect of long-term administration of low-dose FTY720 on survival of murine cardiac allograft and the possible mechanism. Murine models of abdominal heterotopic heart transplantation were established. Low-dose FTY720 (0.3 mg/kg) was administrated to the animals 4 days before the transplantation of cardiac allografts until the occurrence of rejection or the observation terminals. The animals without FTY720 treatment and those with syngeneic cardiac grafts transplanted served as controls. The mean survival time (MST) of grafts, and T lymphocyte subsets in grafts, peripheral blood and lymphoid organs were measured by histopathological examination or flow cytometry, and compared among groups. The results showed that the MST of allografts in FTY720-treated mice was more than 40 days, significantly longer than that in the untreated group (MST=8 days, P<0.01). After the long-term administration of FTY720, the proportion of CD4(+) and CD8(+) lymphocytes in peripheral blood was diminished significantly, but the proportion of CD4(+) lymphocytes was increased in mesenteric lymph nodes (MLNs) and spleen. Immunofluorescence staining revealed that the infiltration of CD4(+) and CD8(+) lymphocytes in allografts was significantly inhibited after long-term administration of low-dose FTY720. It was concluded that low-dose long-term administration of FTY720 could promote T lymphocytes in lymphatic organs and decrease their infiltration in allografts, resulting in the inhibition of rejection and the long-term survival of allografts.
4.Gene mutations detection in 469 patients with G6PD deficiency in Dongguan
Wenrui LI ; Minnan YE ; Qi PENG ; Siping LI ; Jianling LONG ; Yuejing HE ; Qingqiu CHENG ; Xiaomei ZENG ; Xiaomei LU
International Journal of Laboratory Medicine 2014;(17):2287-2288
Objective To explore the genotype of patients with glucose-6-phosphate dehydrogenas(G6PD)deficiency in Dong-guan and provide the basis for the clinical diagnosis and prevention.Methods The clinical data of patients who took G6PD activity screening in the hospital were collected from January 2011 to December 2013,the G6PD/6PGD ratios were recorded.469 patients with positive G6PD/6PGD ratio were randomly enrolled in the study,whose mutations were detected by reverse dot blot(RDB)as-say.Results During this period,we measured G6PD activity of 16 464 cases by G6PD/6PGD ratios,there were 672 positive cases, the positive rate was 4.08%.Randomly selected 469 positive samples,detected their genotye by RDB assay.We detected 173 cases of G1376T,141 cases of G1388A,82 cases of A95G,60 cases of G871A,23 cases of G392T,14 cases of C1024T.In addition to that, we also found some rare mutations,such as 6 cases of C1004T,2 cases of T517C,1 cases of C1360T.65 cases of C1311T gene poly-morphism and 96 cases of dual gene mutations were detected.Conclusion The incidence of G6PD deficiency is high and the gene mutation types in Dongguan are both representative for Chinese population and with local heterogeneity.The study on gene muta-tions of G6PD deficiency is benefit for diagnosis and prevention.
5.Comparative study of measuring pulse blood oxygen saturation and osteofascial compartmental pressure in forecasting osteofascial compartmental syndrome.
Zhi-Feng GONG ; Guang-Cheng SHEN ; Qi MAO ; Yong-Long CHI
China Journal of Orthopaedics and Traumatology 2009;22(5):365-366
OBJECTIVETo investigate of the value of monitoring of saturation of blood oxygen of the injured extremity on prevention of osteofascial compartmental syndrome.
METHODSTwenty patients of osteofascial compartmental syndrome included 13 male and 7 female with an average age of 32 years ranging from 13 to 60. There were 13 cases of tibial and fibual fractures, 3 cases of tibial plateau fractures, 4 cases of femoral shaft fractures. SpO2 on the end of injured extremities were dynamic monitored and osteofascial compartmental pressure was measured by modified Whiteside method. The data of two group were compared.
RESULTSAmong 20 cases, it's negative correlation between the data of pulse blood oxygen saturation and osteofascial compartmental pressure.
CONCLUSIONThe method of dynamic monitor extremity SpO2 can reflect indirectly the ischemia in muscle and nerve and report the early diagnosis and management of osteofascial compartmental syndrome.
Adolescent ; Adult ; Compartment Syndromes ; blood ; diagnosis ; metabolism ; physiopathology ; Female ; Heart Rate ; physiology ; Humans ; Ischemia ; metabolism ; physiopathology ; Male ; Middle Aged ; Muscles ; metabolism ; Nerve Tissue ; metabolism ; Oximetry ; methods ; Oxygen ; blood ; Regional Blood Flow ; physiology ; Young Adult
6.Therapeutic evaluation of microvascular decompression in patients with trigeminal neuralgia associated with hypertension.
Yan-jun CHONG ; Jian CHEN ; Guang-ting ZHU ; De-yi DUAN ; Qi-long CHENG ; Qi-jie SHAO
Chinese Journal of Surgery 2005;43(5):331-333
OBJECTIVEThe aim of work was to evaluate the efficacy of microvascular decompression (MVD) in patients with trigeminal neuralgia (TN) associated with hypertension.
METHODSFive hundred and thirty-eight cases of TN associated with hypertension treated with MVD were retrospectively analyzed, all the cases were treated with MVD in the zone of the ventrolateral medulla oblongata and inspected postoperative blood pressure.
RESULTSAmong 538 cases, 341 cases (63.4%) had cure result, 71 cases (13.2%) had obvious effectiveness, 53 cases (9.8%) had effectiveness, and 73 cases had no effectiveness. Four hundred and eighty-three cases have been followed 1.0 approximately 15.8 years, mean 6.3 years. At the time of their follow-up, 313 cases had cure result, 63 cases had obvious effectiveness, 42 cases had effectiveness and 65 cases had no effectiveness.
CONCLUSIONSIt was pathogenesis of nedulla oblongata by abnormal vascular tab, long-term aching stimulation and emotional stress. It was an effective method to treat TN associated with hypertension with MVD in this zone.
Adult ; Aged ; Aged, 80 and over ; Decompression, Surgical ; methods ; Female ; Humans ; Hypertension ; complications ; Male ; Medulla Oblongata ; pathology ; Microsurgery ; Middle Aged ; Retrospective Studies ; Treatment Outcome ; Trigeminal Neuralgia ; complications ; surgery ; Vascular Surgical Procedures ; methods
7.A comparative study of male patient's sexual function before and after kidney transplantation.
Long-Gen XU ; Jun CHENG ; Qi-Zhe SONG ; Xiao-Ping QI ; Xin-Hong WANG
National Journal of Andrology 2003;9(4):270-272
OBJECTIVESTo investigate sexual function before and after kidney transplantation in patients with chronic nephrosis.
METHODSEighty-six male patients were divided into 3 age groups: young-age group (Group A), middle-age group(Group B) and elder-age group(Group C). Sexual function, including potency, frequency and satisfaction of intercourse before and after the sickening, and after transplantation, were recorded in each group.
RESULTSAll the patients were potent before suffering from nephrosis. The proportion of patients who were potent after catching the disease in Group A, B and C was 28.6%, 13.8% and 9.1%, respectively. Notably, the proportion of patients remaining potent after transplantation in Group A, B and C was 88.6%, 75.9% and 63.6%, respectively.
CONCLUSIONSQuality of sexual life is significantly improved after kidney transplantation. The younger the patients, the better the improvement.
Adult ; Humans ; Kidney Transplantation ; Male ; Middle Aged ; Quality of Life ; Sexual Behavior ; Surveys and Questionnaires
8.Detection methods and evaluation indexes of sexual motivation in male rats:An update
Cheng-Long LUO ; Hao-Yang CHENG ; Qi ZHANG ; Yong-Zheng JIAO
National Journal of Andrology 2024;30(6):569-573
Sexual motivation refers to the intensity of willingness to have sex with or near a potential partner and is important for sexual health.At present,low sexual desire has become an increasingly prominent social problem,and there are no unified standards for its detection and evaluation.In this paper,we systematically sorted out the commonly used methods for detecting sexual motivation in male rats,including the three major categories of male-female mating,competitive selection and task acquisition,and discussed the relevant evaluation indexes and the advantages and disadvantages of various methods.We also explored the nature of sexual motivation,elaborated sexual contact behavior as a direct manifestation of sexual motivation,and proposed focusing relevant studies on contact be-haviors and differentiating sexual proximity from social proximity.
9.Expression of HSV-1 ICP0 Antigen Peptide in Prokaryotic Cells and Preparation of Specific Antibody
Wei-zhong, LI ; Wei, CUN ; Long-ding, LIU ; Yan-chun, CHE ; Jie, LUO ; Li-chun, WANG ; Cheng-hong, DONG ; Qian, YANG ; Qi-han, LI
Virologica Sinica 2007;22(4):280-286
As an immediate-early protein of herpes simplex virus, infected-cell polypeptide 0 (ICP0) exhibits complicated interactions with host cells, and its regulatory function on gene expression is of great importance. Since the ICP0 encoding sequence contains many rare codons which are absent in E.coli, and ICP0 is highly unstable in prokaryotic cells, expression of entire ICP0 in prokaryotic cells has never been reported. In order to further investigate the function of ICP0, a recombinant plasmid was constructed by subcloning a cDNA fragment encoding an amino-terminal of 105 residues of the ICP0 protein into pGEX-5x-1 vector. The resulting GST-105 fusion antigen peptide was expressed with high efficiency in E.coli. Antibodies prepared after the immunization of mice with purified fusion protein can recognize not only the denatured ICP0 protein, but also the native ICP0 protein with normal biological conformation.
10.Detection and Genetic Characterization of Rabies Virus from Human Patients
Wen-rong, YAO ; Guo-qiang, PAN ; Cheng-long, XIONG ; Qian-fu, ZHOU ; Qi-you, XIAO ; Ming-hui, LI ; Yong-zhen, ZHANG
Virologica Sinica 2007;22(4):307-315
Saliva and blood were collected from two patients who had not received post exposure prophylaxis in the cities of Wenzhou and Xinning respectively. Both patients were confirmed as positive for rabies by detection of rabies virus specific nucleoprotein antibodies in the sera by Western Blot. However, rabies virus specific RNA was only identified in the saliva collected from the patient in Wenzhou. Furthermore, the isolate Zhejiang Wz0 (H) was obtained by inoculating one-day-old suckling mice. Both nucleoprotein (N) and glycoprotein (G) genes from the isolate were amplified by RT-PCR and sequenced. Phylogenetic analysis indicated that the isolate belonged to classic rabies virus, and shared a higher homology with the street viruses from dogs in the main endemic areas in China and the street virus from dogs in Indonesia than with other known strains. Further comparison of the deduced amino acid sequences between the isolate and the vaccine strains used in China showed that the virus had a higher level of homology with the vaccine strain CTN than with the other vaccine strains (3aG, PV, PM and ERA). In particular, amino acid residues substitutions located in antigenic site Ⅲ in the G protein, which could react with the neutralizing antibodies, were observed. These results suggested that the virus belonged to the classic rabies virus, and both N and G genes diverged from the current vaccine strains used in China at either the nucleotide or the amino acid level.