1.Prevalence and influencing factors of sarcopenia in maintenance hemodialysis patients
Wen DU ; Zijin CHEN ; Xuejie WANG ; Yun XI ; Xiaoting PAN ; Zhenhua YANG ; Haijin YU ; Xiaonong CHEN
Chinese Journal of Nephrology 2021;37(5):407-413
Objective:To determine the prevalence of sarcopenia and explore related influencing factors of sarcopenia in maintenance hemodialysis (MHD) patients.Methods:MHD patients aged ≥18 years old and receiving therapies of ≥3 months from March 2019 to December 2019 in Blood Purification Centre of Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine were retrospectively enrolled in this study. General data of the patients were collected. Grip strength was measured by the Jamar dynamometer and the chair stand was measured by a chair of standard height to assess skeletal muscle strength and appendicular skeletal muscle mass was measured by dual energy X-ray absorptiometry. Baseline data between MHD patients with and without myasthenia were compared. Logistic regression analysis method was used to analyze the influencing factors for sarcopenia in MHD patients.Results:A total of 125 MHD patients were enrolled, with 68 males (54.4%), age of (59.4±14.9) years and median dialysis age of 51.0(23.5, 101.0) months. Sarcopenia was diagnosed in 39 cases (31.2%). Compared with MHD patients without sarcopenia, age, tumor necrosis factor-α, von Willebrand factor (vWF) and proportion of using α ketones were higher, and serum carbondioxide combining power (CO 2CP), prealbumin, albumin and proportion of regular exercise were lower in MHD patients with sarcopenia (all P<0.05). Multivariable logistic regression analysis results showed that low CO 2CP ( OR=0.717, 95% CI 0.576-0.892, P=0.003), high vWF ( OR=1.037, 95% CI 1.016-1.058, P<0.001) and no regular exercise ( OR=0.309, 95% CI 0.118-0.810, P=0.017) were independent influencing factors of sarcopenia in MHD patients. Conclusions:The prevalence of sarcopenia in MHD patients is high. Low CO 2CP, high vWF and no regular exercise are independent influencing factors for sarcopenia in MHD patients.
2.Application of Response Surface Analysis (RSA) in Fermentation Condition Optimization of Penicillium decumbens Ju-A_(10) for CMCase Production
Xi-Wen DONG ; Chun-Mei DU ; Jian-Qiang LIN ; Yin-Bo QU ;
Microbiology 1992;0(03):-
Fermentation condition optimization of P. decumbens Ju-A10 for production of CMCase using three kinds of plant cellulosic wastes as carbon sources was made using RSA method. The result was that CMCase was the highest when the level of carbon source was 9. 77 % , 8. 69 % and 9. 97% , and liquid volume was 64. 7 mL, 54. 2 mL, 40. 8 mL for carbon sources of millet straw, wheat straw and paper sludge, respectively. The value of CMCase was 29. 26IU/mL, 29. 14 IU/mL, 29. 81 IU/mL, respectively, in the above cases. The value of R2 is 0. 9117 , 0. 9246, 0. 8655 , respectively. It could be concluded that the fermentation models were quite reliable. The method can be applied in optimization of fungi fermentation medium.
3.Surgical treatment for Lisfranc injuries accompanied by the base crashing of the second metatarsal bone.
Jie-feng HUANG ; Yang ZHENG ; Xin CHEN ; Kai ZHA ; Xi-wen DU ; Jun-jie CHEN ; Pei-jian TONG
China Journal of Orthopaedics and Traumatology 2015;28(2):171-173
OBJECTIVETo discuss the clinical effects of open reduction and internal fixation (ORIF) for treatment of patients with Lisfranc injury combined the second metatarsal base comminuted fracture.
METHODSFrom March 2007 to June 2012, 7 patients with Lisfranc injury combined the second metatarsal base comminuted fracture were treated including 5 males and 2 female aged from 22 to 51 years old (means 42 years), 4 of sprain and 3 of traffic injury. According Myerson classification, there was 1 case of type A, 3 of type B and 3 of type C. Kirschner wire was used to fix Lisfranc ligament placing from the medial cuneiform bone to the second metatarsal base during the operation. After the operation American Orthopaedic Foot and Ankle Society (AOFAS) criteria system were applied to evaluate the foot and ankle function. Preoperative and postoperative AP, lateral and oblique X-ray and CT scan were collected for radiographic evaluation.
RESULTSAll patients were followed up from 12 to 20 months (16.8 months in average). According to AOFAS criteria system, 3 cases were excellent result,3 good, 1 fair. All the wounds were primary healing without skin necrosis, infection, Kirschner loose,broken, or other complications.
CONCLUSIONKirschner wire had good clinical efficacy for fixing Lisfranc ligament injury with the second metatarsal base comminuted fracture, and could avoid arthrodesis.
Adult ; Bone Wires ; Female ; Humans ; Male ; Metatarsal Bones ; injuries ; surgery ; Middle Aged ; Tarsal Joints ; injuries ; surgery ; Wound Healing
4.Quality Assessment for Meta-analysis on Prevention and Treatment of Coronary Artery Disease in China
Yan LUO ; Qin LIU ; Chengfeng DU ; Hongxia LONG ; Fan WANG ; Wei ZHU ; Min ZHOU ; Jin XI ; Shudan LIU ; Yi WEN
Chinese Circulation Journal 2014;(12):979-982
Objective: To assess the quality for meta-analysis on prevention and treatment of coronary artery disease (CAD) in China.
Methods: We systemically searched 4 Chinese databases of VIP, CNKI, CBM and Wan Fang for their meta-analysis on CAD prevention and treatment from 1987-01 to 2013-10. According to inclusion and exclusion criteria, 2 researchers independently screened and cross-checked all the literatures. The qualities of methodology and report were evaluated by R-AMSTAR and PRISMA scales.
Results: A total of 201 literatures were enrolled for our study. The average score of methodology quality was (24.65±3.97), no literature met all required items, and the major problems were as lack of“a priori design”, insufifcient and bias of data selection combining inappropriate data synthesis. The average score of report quality was (17.20 ± 2.90), no literature met all 27 required items, and the major problems were as incomplete report of abstract, objective, protocol and registration, incomplete data collection/analysis, using and publishing bias information, incomplete quality assessment.
Conclusion: Both of methodology and report of meta-analysis for CAD prevention and treatment have quality problems at different levels, further improvement should be expected.
5.Effects of Blood Activating Wind Dissipating Acupuncture on Blood Pressure of Prehypertension Patients.
Wen-long GU ; Chang-xi LIU ; Zeng-rong WANG ; Feng-mei GONG ; Tao WANG ; Yu-zheng DU
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(11):1318-1321
OBJECTIVETo observe the effects of blood activating wind dissipating acupuncture (BAWDA) on blood pressure (BP) of prehypertension (PHT) patients.
METHODSTotally 60 PHT patients were assigned to the control group and the acupuncture group according to random digit table, 30 in each group. All patients were intervened by life style. BAWDA was additionally performed in patients in the acupuncture group for 6 weeks (30 times). The improvement of BP after intervened by acupuncture was observed. BP success rates and the proportion of PHT progressing to hypertension (HT) were also observed after 6-week intervention of acupuncture and at 1-year follow-up.
RESULTSSystolic blood pressure (SBP) and diastolic blood pressure (DBP) decreased after 6-week intervention in the acupuncture. The BP control rate was 56.7% (17/30 cases) in the acupuncture group vs.10.0% (3/30 cases) in the control group with statistical difference (chi2 = 14.70, P < 0.01). At 1-year follow-up BP success rate was 36.7% (11/30 cases) in the acupuncture group, remarkably higher than that of the control group [13.3%, (4/30 cases)] (chi2 = 4.36, P < 0.05).
CONCLUSIONSBAWDA showed BP regulating roles in a gradually stable decreasing tendency. It also could elevate BP success rate of PHT, and reduce the risk of PHT progressing to HT.
Acupuncture ; methods ; Acupuncture Therapy ; methods ; Blood Pressure ; Humans ; Hypertension ; Prehypertension ; therapy ; Wind
6.Molecular diagnosis of the specific DNA patterns of 16S-23S rRNA gene of bacteria.
Shi-qiang SHANG ; Guan-ping DONG ; Jun-fen FU ; Wen-lan HONG ; Li-zhong DU ; Xi-lin YU
Chinese Journal of Pediatrics 2003;41(9):692-696
OBJECTIVETo establish the specific 16S-23S rRNA gene spacer regions pattern in different bacteria using polymerase chain reaction (PCR), restriction fragment length polymorphism (RFLP), DNA cloning and sequences analysis.
METHODSA pair of primers were selected from highly conserved sequences adjacent to the 16S-23S rRNA spacer region. Bacterial DNA of sixty-one strains of standard bacteria and corresponding clinical isolates representative of 20 genera and 27 species was amplified by PCR, and further studied by RFLP, DNA cloning and sequences analysis. Meanwhile, all specimens were examined by bacterial culturing and PCR-RFLP analysis.
RESULTSThe 27 different standard strains showed one, two, three or more than three bands. The sensitivity of PCR reached 2.5 colony-forming unit (CFU), and there was no cross reaction to the human, fungal or viral genomic DNAs. Fifteen species could be distinguished immediately by PCR, while another 10 species were further identified by Hinf I or Alu I digestion. Klebsiella pneumoniae (Kp) and Enterococcus durans (Ed) could not be differentiated from each other by Alu I or Hinf I digestion. The spacer sequences of the Kp and Ed were 908 bp and 909 bp, respectively, and they differed only at the site of the 779th nucleotide. The former was G, and the latter was A. The 760 - 790 bp sequence of Kp was as follows: CGACTGCACCGCCTCCTAC / GGCCGCGTATTC. The 760 - 790 bp sequence of Ed was as follows: CGACTGCAC CGCCTCCTAC / AGCCGCGTATTC. Only one enzyme XmaIII, could discriminate the two. The cleaving site of XmaIII is C downward arrow GGCCG. Kp DNA was cleaved into 778 bp and 130 bp fragments, while E. durans was not. Of 42 specimens with suspected septicemia, 15 were positive (35.7%) on blood culture, and 27 on PCR (64.29%). The positive rate of PCR was significantly higher than that of blood culture (P < 0.01). Of the six CSF specimens, one was positive for Staphylococcus epidermidis (Se) on culture as well as by PCR, while two specimens which were negative on cultures were positive by PCR and were diagnosed as Se according to its DNA pattern. One specimen was culture-positive for Cryptococcus neoformans (Cn) but was negative by PCR. The other two specimens were negative by both PCR and culture. Fifteen blood samples from healthy children were negative by both blood culture and PCR.
CONCLUSIONSThe method of detecting bacterial 16S-23S rRNA spacer regions using PCR-RFLP techniques was specific, sensitive, rapid and accurate in detecting pathogens in clinical bacterial infections.
Bacterial Infections ; diagnosis ; microbiology ; DNA, Bacterial ; chemistry ; genetics ; DNA, Ribosomal Spacer ; genetics ; Humans ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; RNA, Ribosomal, 16S ; genetics ; RNA, Ribosomal, 23S ; genetics ; Sequence Analysis, DNA
7.Combined indocyanine green test and standard remnant liver volume to predict post-hepatectomy hepatic insufficiency for the patients with hepatocellular carcinoma.
Zheng-gui DU ; Bo LI ; Xi FENG ; Jie YIN ; Lü-nan YAN ; Tian-fu WEN ; Yong ZENG
Chinese Journal of Surgery 2010;48(3):189-192
OBJECTIVETo discuss the safety line to avoid the post-hepatectomy hepatic insufficiency by combining indocyanine green test by pulse dye-densitometry (PDD-ICG) and standard remnant liver volume (SRLV).
METHODSSeventy-five hepatic cancer patients undergone hepatectomy from March 2007 to February 2008 were included. According to the liver function decompensatory grades after operation, the relationship between ICG retention rate at 15 min (ICGR15) and standard remnant liver volume by linear regression were analyzed.
RESULTSThere were 60 cases with slight hepatic insufficiency, 12 cases with moderate hepatic insufficiency, and 3 cases with severe hepatic insufficiency. There were no difference in age [(50 +/- 13) years old and (53 +/- 9) years old], prothrombin time [(13.6 +/- 1.0) s and (13.5 +/- 1.0) s], international normalized ratio (1.09 +/- 0.10 and 1.06 +/- 0.10) between slight hepatic insufficiency group and moderate and severe hepatic insufficiency group (P > 0.05). And there were difference in K value (0.20 +/- 0.04 and 0.17 +/- 0.03), ICGR15 (6 +/- 4 and 9 +/- 4), SRLV [(545 +/- 93) ml and (398 +/- 82) ml] between two groups (P < 0.05). Compared ICG test and standard remnant liver volume of the patients with moderate hepatic insufficiency after operation, the liner relationship was found (R = 0.640, P = 0.025), and the regression equation was: standard remnant liver volume (ml/m(2)) = 1594.6 x ICGR15 + 265.
CONCLUSIONSPDD-ICG test and standard remnant liver volume are effective to estimate hepatic function reserve of patient undergone hepatectomy.
Adult ; Female ; Hepatectomy ; methods ; Hepatic Insufficiency ; etiology ; Humans ; Indocyanine Green ; pharmacokinetics ; Liver ; pathology ; Liver Neoplasms ; pathology ; surgery ; Male ; Middle Aged ; Postoperative Complications ; etiology
8.Establish research model of post-marketing clinical safety evaluation for Chinese patent medicine.
Wen-ke ZHENG ; Zhi LIU ; Xiang LEI ; Ran TIAN ; Rui ZHENG ; Nan LI ; Jing-tian REN ; Xiao-xi DU ; Hong-cai SHANG
China Journal of Chinese Materia Medica 2015;40(18):3693-3696
The safety of Chinese patent medicine has become a focus of social. It is necessary to carry out work on post-marketing clinical safety evaluation for Chinese patent medicine. However, there have no criterions to guide the related research, it is urgent to set up a model and method to guide the practice for related research. According to a series of clinical research, we put forward some views, which contained clear and definite the objective and content of clinical safety evaluation, the work flow should be determined, make a list of items for safety evaluation project, and put forward the three level classification of risk control. We set up a model of post-marketing clinical safety evaluation for Chinese patent medicine. Based this model, the list of items can be used for ranking medicine risks, and then take steps for different risks, aims to lower the app:ds:risksrisk level. At last, the medicine can be managed by five steps in sequence. The five steps are, collect risk signal, risk recognition, risk assessment, risk management, and aftereffect assessment. We hope to provide new ideas for the future research.
Clinical Trials as Topic
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Drug-Related Side Effects and Adverse Reactions
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epidemiology
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etiology
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Drugs, Chinese Herbal
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adverse effects
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chemistry
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economics
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therapeutic use
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Herbal Medicine
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economics
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legislation & jurisprudence
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Humans
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Patents as Topic
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Product Surveillance, Postmarketing
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Quality Control
9.A novel mutation of the KIT gene in a Chinese family with piebaldism.
Guang-Dong WEN ; Cheng ZHOU ; Cong YU ; Juan DU ; Qian-Xi XU ; Zheng-Yi LIU ; Jian-Zhong ZHANG
Chinese Medical Journal 2013;126(12):2325-2328
BACKGROUNDHuman piebaldism is a rare autosomal dominant condition characterized by congenital white forelock and depigmented patches of skin, typically on the forehead, anterior trunk and extremities. Mutations in the KIT gene have been proposed to be responsible for the underlying changes in this disorder. The aim of this study was to identify gene mutation in a Chinese family with piebaldism.
METHODSA Chinese family with piebaldism presenting with white forelock and large depigmented skin macules on the abdomen, arms and legs was collected. DNA was isolated from peripheral blood of the family members. The encoding exons with flanking intron regions of the KIT gene were analyzed by polymerase chain reactions (PCR) and direct DNA sequencing. Besides, DNA extracted from 100 ethnically matched population individuals was as controls.
RESULTSA heterozygous missense mutation c.2590T > C was identified in the patients of the family. This mutation converted a serine residue to proline (p.Ser864Pro). The mutation was not found in their unaffected family members or normal controls.
CONCLUSIONA novel missense mutation c.2590 T > C was found and it might play a significant role in the piebaldism phenotype in the family.
Child ; Humans ; Male ; Mutation, Missense ; Piebaldism ; genetics ; Proto-Oncogene Proteins c-kit ; genetics ; physiology
10.Study on mutagenicity and teratogenicity of ammonium dinitramide.
Wen-xia DU ; Yu-ling WANG ; Yuan-han SUN ; Feng XIE ; Zhi-qiang CHANG ; Ya-fei XING ; Yan-wei ZHANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2011;29(11):843-845
OBJECTIVETo study the mutagenicity and teratogenicity induced by ammonium dinitramide(ADN).
METHODSAccording to technical specifications for toxicity determination of chemicals, Salmonella typhimurium reverse mutation assay (Ames assay), in vivo mammalian erythrocyte micronucleus test, sperm malformation test and teratogenesis test were used to detect the mutagenicity and teratogenicity induced by AND.
RESULTSWhen the exposure doses of AND were 8-5000 pg/plate, the result of Ames assay was negative. As compared with control group, the micronucleus rate of mice exposed to 113.8 mg/kg AND significantly increased(P<0.05), the sperm malformation rates of mice exposed to 54.4-272.0 mg/kg AND did not increased significantly. The survival rate of fetuses decreased, the rate of assimilated fetuses increased, the rate of fetus sternum agenesis enhanced in mice exposed to 319 mg/kg AND, as compared with controls. The rates of in the 4th-6th fetus sternum agenesis in groups exposed to 21.3, 79.7 and 319 mg/kg AND were higher than that in control group. The malformation rate of fetus bowels in groups exposed to 319 mg/kg AND was higher than that in control group. The teratogenic index of ADN was 30.
CONCLUSIONAND may be a mutagen and induce the teratogenic effect.
Animals ; Embryo, Mammalian ; drug effects ; pathology ; Female ; Male ; Mice ; Mice, Inbred Strains ; Micronucleus Tests ; Mutagenicity Tests ; Nitrites ; toxicity ; Pregnancy ; Quaternary Ammonium Compounds ; toxicity ; Spermatozoa ; drug effects ; pathology ; Sternum ; drug effects ; pathology