Cooperation hydrogen production was carried out using Rhodopseudomonas sp. DT and Enterobacter aerogenes. The effects of the initial ratio of Rhodopseudomonas sp. DT and E. aerogenes, culture temperature, and carbon source on the cooperation hydrogen production were investigated. The results suggested that cooperation hydrogen production rate was highly affected by the initial ratio of Rhodopseudomonas sp. DT and E. aerogenes. The mixed bacteria of Rhodopseudomonas sp. DT and E. aerogenes with 1:1 initial ratio benefited to the cooperation hydrogen production, which led the hydrogen production rate and duration of gas production to 3.1 mol H2/mol glucose and 81 h, respectively. The pH dynamics analysis of culture medium further discovered that the pH of the mixed bacteria with 1:1 initial ratio changed from 6 to 7 smaller than other conditions, which was probably fitted to produce hydrogen. Furthermore, the mixed bacteria with 1:1 initial ratio had the higher hydrogen production efficiency at temperatures of 28?C and 37?C than at 20?C, and without any hydrogen production at temperature of 50?C. The carbon sources of glucose, succinate acid, malic acid could be used to produce hydrogen by the mixed bacteria. Even the soluble starch, unused by Rhodopseudomonas sp. DT, was also decomposed by the mixed bacteria to produce hydrogen with the conversion efficiency of 8.22%. The glucose was the optimal carbon resource, and the conversion efficiency could reach to 36.11%. The results, further, implied that the cooperation hydrogen production could enlarge the use of the carbon sources.

Objective To investigate the expression of Th17/Th1cells in peripheral blood and its relationship with rapid virologic response (RVR) to the therapy with pegylated interferon (PEG-IFN)combined with rib(a)ivirin (RBV) in patients with chronic hepatitis C (CHC).Methods Thirty one CHC patients treated with PEG-IFN combined with RBV were enrolled,and the demographic and clinical data including age,gender,body mass index (BMI),results of biochemical parameters in serum and the peripheral blood samples at baseline were collected. Eleven healthy volunteers were enrolled as control group.The RVR in 4th week were observed by prospective experimental research method. The ratio of CD3 +,CD8 -,IL-17 +,Th17 and CD3 +,CD8-,IFN-γ+,Th1in peripheral blood mononuclear cells (PBMCs) were detected at baseline by flow cytometry.Results Compared to the healthy control group,the level of Th1cells was decreased and the level of Th17 cells was increased in patients with CHC.In non-RVR group of CHC,compared to the healthy control group,the level of Th1cells was decreased significantly,and the level of Th17 cells was increased significantly ( P ＜ 0.05 ). Conclusions There was Th1/Th17 subgroups imbalance in no-RVR CHC patients treated with PEG-IFN combined with RBV,the level of Th1cells was reduced,and the level of Th17 cells was increased.The high level of TH17 cells and low level of Th1cells at baseline may not be conducive to the RVR.

OBJECTIVETo analyze the association of that the polymorphisms and haplotypes of Taq I site in beta fibrinogen gene and the single nucleotide sites -455 G/A, -249 C/T, -148 C/T, +1689T/G, Bsm A I G/C, 448 G/A, Bcl I G/A, Hinf I A/C in beta-fibrinogen gene are linked up with the ischemic stroke(IS).

METHODSTurbidmetric assay was used to measure the plasma fibrinogen level of one hundred and sixty cases with ischemic stroke and one hundred and thirty healthy individuals from Hainanese Han population. The polymorphisms and genotypes were characterized by PCR-RFLP. Hardy-Weinberg equilibrium and statistical differences of allelic, genotype and haplotype frequencies were obtained by Chi-square test. Pairwise linkage disequilibrium was calculated and haplotypes of nine or four polymorphisms were estimated by the EH + program.

RESULTSThere were highly significant differences in genotype frequencies and allelic frequencies of the polymorphisms -455 G/A, -148 C/T, 448 G/A, which happened between the IS group and control subjects (P< 0.01). However, the significant differences of the allelic frequencies in the other six polymorphisms were not found between the IS group and the control (P> 0.05). The odds ratio(OR) with the rare alleles of A -455, T -148 and A 448 is 2.46, 2.30 and 2.08 (95% confidence interval 1.153%-3.924%, 1.429%-3.694% and 1.298%-3.329%) respectively. No definite haplotype block was found by linkage disequilibrium analysis in the control group and the IS group. Association of haplotypes constructed from the nine polymorphisms with IS was not found. Among the haplotypes constructed from four polymorphisms including -455 G/A, -148 C/T, 448 G/A alleles, haplotype differences were found between the control group and the IS group. Haplotypes with G -455, C -148, G448 alleles appeared more frequently in control group(P< or = 0.01), whereas haplotypes with A -455, T -148, A 448 occurred more frequently in the IS group(P< 0.01).

CONCLUSIONThe results of multi-allele and haplotype analysis indicated that the polymorphisms -455 G/A, -148 C/T, 448 G/A in beta fibrinogen gene were the possible risk factors associated with the occurrence of ischemic stroke in Hainan Han population.

Alleles ; Brain Ischemia ; complications ; Female ; Fibrinogen ; genetics ; Gene Frequency ; Genetic Predisposition to Disease ; genetics ; Genotype ; Haplotypes ; genetics ; Humans ; Linkage Disequilibrium ; genetics ; Male ; Middle Aged ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Polymorphism, Single Nucleotide ; genetics ; Stroke ; etiology ; genetics

Objective To study the application value of different transbronchial biopsies in the diagnosis of central lung cancer in elderly patients.Methods The clinical data of 97 elderly patients with central lung cancer diagnosed by pathology from June 2020 to June 2023 in the 923rd Hospital of Chinese People's Liberation Army Joint Logistic Support Force were retrospectively analyzed.According to the different initial transbronchial biopsy methods,the patients were divided into the endobronchial biopsy(EBB)group(n=51)and the conventional transbronchial needle aspiration(cTBNA)group(n=46).The histopathological results were statistically analyzed,and the first biopsy positive rates of EBB and cTBNA in the diagnosis of senile central lung cancer were calculated and compared.At the same time,the differences of biopsy tolerance and complications between the two groups were evaluated.Results The squamous cell carcinoma proportions in both groups were over 50%.There was no significant difference in the first biopsy positive rate between the two groups(P>0.05).The incidence of temporary retreat of the scope due to subjective tolerance in the EBB group was higher than that in the cTBNA group,and the difference was statistically significant(P<0.05).There was a statistically significant difference in the incidence of intraoperative complications of different grades between the two groups(P<0.001).Among them,the incidence of grade 2 and above complications during surgery in the EBB group was significantly higher than that in the cTBNA group(P<0.001).Conclusion For elderly patients with central lung cancer,the success rate of the first biopsy of EBB and cTBNA is roughly equivalent,but the incidence of postoperative complications of the latter is significantly lower than that of the former.cTBNA can be used as the first biopsy method for this population.

OBJECTIVETo probe into clinical value of comprehensive program of acupuncture, moxibustion and massage as main for treatment of cervical spondylopathy of the nerve root type.

METHODSFive centers, single blind, randomized controlled method were used, 660 cases were divided into a treatment group of 317 cases and a control group of 311 cases. They were treated respectively with comprehensive program of acupuncture, moxibustion and massage as main, and comprehensive program of physical therapy as main. Establish syndrome detection scale and multiply dimensional effect assessment indexes, and evaluate the therapeutic effects and safety.

RESULTSThe cured rate, the cured-markedly effective rate were 42.9%, 64.4% in the treatment group, respectively, better than 16.7%, 36.3% in the control group (P<0.01); after treatment of 2 weeks, clinical symptoms improved in the both groups, but the treatment group was better than the control group in the improvement degrees of neck-shoulder-limb pain, neck rigidity, abnormality of cervical anteflexion, etc. (P<0.01 or P<0.05); the treatment group was shorter than the control group in the time of producing the effect and therapeutic course (P<0.01).

CONCLUSIONComprehensive program of acupuncture, moxibustion and massage as main is safe and effective for treatment of cervical spondylopathy, with a better therapeutic effect compared with the comprehensive program of physical therapy.

Acupuncture Therapy ; Humans ; Massage ; Moxibustion ; Single-Blind Method ; Spinal Diseases

A new isocoumarin, chamerilactone A (1) was isolated from the ethanol extract of Chamerion angustifolium with normal phase silica column chromatography, Sephadex LH-20, MCI CHP-20 and semipreparative HPLC methods. Its structure and stereochemistry were elucidated by spectroscopic methods, including 2D-NMR and optical rotation techniques.

Objective To study the anatomical and biomechanical features of sacral pedicle and lateral mass to provide evidence for clinical sacral pedicle and lateral mass screw fixation technology. Method 60 adult patient's spiral CT images of sacrum and coccyx were selected randomly. The sacral pedicle and lateral mass screw entry point was determined, and the crew trajectory were measured using the three dimensional reconstruction. Meanwhile, the gross anatomy was done for 15 adult cadavers to determine the sacral pedicle and lateral mass screw entry point. The length, width and angle of sacral pedicle and lateral mass screw trajectory was measured. 8 of 15 cadaver specimens were selected to test for the maximal extraction force for sacral pedicle and lateral mass screws. ResultsThe diameter and length of S1～S5 sacral pedicle and lateral mass screw trajectory are significantly regular, with inclination angle is about 20°. The S1 pedicle screw entry point is located at intersection point of basal lateral part of articular process and median line of transverse process, no significant difference is found between the maximal extraction force of pedicle and lateral mass screws (P>0.05）. The entry points of S2～5 pedicle screws are located at the intersection point of the line connecting adjacent posterior sacral foramina and median line of transverse process. The lateral mass screw entry point of S2～5 is on the median side of intersection point between median line of transverse process and lateral sacral crest. The maximal extraction force of pedicle screws are significantly different from the lateral mass screws（P<0.05）. Conclusions Both the sacral pedicle and the lateral mass screw fixation technology can offer effective fixation and reconstruction for the fracture of sacrum and coccyx, but the pedicle screw fixation may be more convenient, safe and reliable than the lateral mass screw fixation technology.

To assess the reliability, validity and responsiveness of the Chinese version of the atopic dermatitis control tool (ADCT). After this study obtained authorization for the Chinese version of the ADCT scale. 114 patients with atopic dermatitis were enrolled from the Department of Dermatology, Peking University First Hospital using convenience sampling from October 2022. Patients were surveyed using the General Information Questionnaire, Chinese version of ADCT, patient-oriented eczema measure (POEM),peak pruritus numerical rating scale (PP-NRS),dermatology life quality index (DLQI) and the global patient self-assessment for disease severity. Mann-Whitney rank sum test and Spearman correlation analysis were used for item analysis; content validity was assessed using content validity index (CVI); exploratory factor analysis was used to assess structural validity; Cronbach' alpha coefficient was used to assess internal consistency; Spearman correlation analysis was used to assess the correlation of ADCT with other scales to assess external responsiveness. The results showed that all items were retained by item analysis. I-CVI was 0.9-1, and S-CVI/Average was 0.983; the scale extracted one common factor by factor analysis, the cumulative variance explanation rate was 77.927%; the Cronbach' alpha coefficient of the scale was 0.937; the correlation coefficients of the Chinese version of ADCT with POEM, PP-NRS, and DLQI were 0.805, 0.861, and 0.709 respectively. In conclusion, the Chinese version of the ADCT has adequate reliability, validity and responsiveness, and is suitable for measuring disease control in Chinese patients with atopic dermatitis.
Humans ; Dermatitis, Atopic ; Quality of Life ; Reproducibility of Results ; Surveys and Questionnaires

Objective: To compare the effects and safety of dydrogesterone (DG) and medroxyprogesterone acetate (MPA) on the treatment in patients with endometrial hyperplasia without atypia (EH). Methods: This was a single-center, open-label, prospective non-inferior randomized controlled phase Ⅲ trial. From February 2019 to November 2021, patients with EH admitted to the Obstetrics and Gynecology Hospital of Fudan University were recruited. Enrolled patients were stratified according to the pathological types of simple hyperplasia (SH) or complex hyperplasia (CH), and were randomised to receive MPA or DG. Untill May 14, 2022, the median follow-up time after complete response (CR) was 9.3 months (1.1-17.2 months). The primary endpoint was the 6-month CR rate (6m-CR rate). The secondary endpoints included the 3-month CR rate (3m-CR rate), adverse events rate, recurrence rate, and pregnancy rate in one year after CR. Results: (1) A total of 292 patients with EH were enrolled in the study with the median age of 39 years (31-45 years). A total of 135 SH patients were randomly assigned to MPA group (n=67) and DG group (n=68), and 157 CH patients were randomly assigned to MPA group (n=79) and DG group (n=78). (2) Among 292 patients, 205 patients enrolled into the primary endpoint analysis, including 92 SH patients and 113 CH patients, with 100 patients in MPA group and 105 in DG group, respectively. The 6m-CR rate of MPA group and DG group were 90.0% (90/100) and 88.6% (93/105) respectively, and there were no statistical significance (χ²=0.11, P=0.741), with the rate difference (RD) was -1.4% (95%CI:-9.9%-7.0%). Stratified by the pathology types, the 6m-CR rate of SH patients was 93.5% (86/92), and MPA group and DG group were respectively 91.1% (41/45) and 95.7% (45/47); and the 6m-CR rate of CH patients was 85.8% (97/113), and MPA group and DG group were 89.1% (49/55) and 82.8% (48/58) respectively. The 6m-CR rates of the two treatments had no statistical significance either (all P>0.05). A total of 194 EH patients enrolled into the secondary endpoint analysis, including 88 SH patients and 106 CH patients, and 96 patients in MPA group and 98 in DG group, respectively. The 3m-CR rate of SH patients were 87.5% (77/88), while the 3m-CR rates of MPA group and DG group were 90.7% (39/43) and 84.4% (38/45), respectively; the 3m-CR rate of CH patients was 66.0% (70/106), and MPA group and DG group had the same 3m-CR rate of 66.0% (35/53). No statistical significance was found between the two treatments both in SH and CH patients (all P>0.05). (3) The incidence of adverse events between MPA group and DG group had no statistical significance (P>0.05). (4) A total of 93 SH patients achieved CR, and the cumulative recurrence rate in one year after CR were 5.9% and 0 in MPA group and DG group, respectively. While 112 CH patients achieved CR, and the cumulative recurrence rate in one year after CR were 8.8% and 6.5% in MPA group and DG group, respectively. There were no statistical significance between two treatment groups (all P>0.05). Among the 93 SH patients, 10 patients had family planning but no pregnancy happened during the follow-up period. Among the 112 CH patients, 21 were actively preparing for pregnancy, and the pregnancy rate and live-birth rate in one year after CR in MPA group were 7/9 and 2/7, while in DG group were respectively 4/12 and 2/4, and there were no statistical significance in pregnancy rate and live-birth rate between the two treatment groups (all P>0.05). Conclusions: Compared with MPA, DG is of good efficacy and safety in treating EH. DG is a favorable alternative treatment for EH patients.
Female ; Humans ; Adult ; Medroxyprogesterone Acetate/adverse effects* ; Endometrial Hyperplasia/pathology* ; Dydrogesterone/adverse effects* ; Hyperplasia ; Prospective Studies

Objective: To investigate the relationship between nutritional risk status and clinical outcome in children with tuberculous meningitis (TBM). Methods: The clinical data (basic information, clinical symptoms and laboratory test results) of 112 patients with TBM, who were admitted to Department of Pediatric Infectious Diseases of West China Second Hospital of Sichuan University,from January 2013 to December 2020 were retrospectively analyzed. The patients were divided into the nutritional risk group and the non-nutritional risk group according to the assessment of the nutritional risk by the STRONGkids Scale. The variables of basic information, clinical symptoms and laboratory test measurements etc. were compared between the two groups by using Student t test, Rank sum test or Chi-square test. Multivariate Logistic regression analysis were used to analyze nutritional risk factors. Results: Among 112 patient with TBM, 55 were males and 57 females. There were 62 cases in the nutritional risk group and 50 cases in the non-nutritional risk group. The proportion of cases with nutritional risk was 55.4% (62/112). Patients in the nutritional risk who lived in rural areas, had symptoms of brain nerve damage, convulsions, emaciation and anorexia, with a diagnosis time of ≥21 days, and the level of cerebrospinal fluid (CSF) protein were all higher than those in the non-nutritional risk group ((50 cases (80.6%) vs. 32 cases (64.0%), 20 cases (32.3%) vs.8 cases (16.0%), 33 cases (53.2%) vs. 15 cases (30.0%), 30 cases (48.4%) vs. 2 cases (4.0%), 59 cases (95.2%) vs. 1 case (2.0%),41 cases (66.1%) vs.18 cases (36.0%), 1 406 (1 079, 2 068) vs. 929 (683, 1 208) mg/L, χ²=3.91, 3.90, 6.10, 26.72, 98.58, 10.08, Z=4.35, all P<0.05). The levels of serum albumin,hemoglobin,lymphocyte count, white blood cell count, and CSF glucose were significantly lower in patients with nutritional risk ((36±5) vs. (41±4) g/L, (110±17) vs. (122±14) g/L, 1.4 (1.0, 2.0)vs. 2.3 (1.6, 3.8)×10⁹/L, 7.8 (6.3, 10.0)×10⁹ vs. 10.0 (8.3, 12.8)×10⁹/L, 1.0 (0.8, 1.6) vs. 2.1 (1.3, 2.5) mmol/L, t=-6.15, -4.22, Z=-4.86, -3.92, -4.16, all P<0.05).Increased levels of serum albumin (OR=0.812, 95%CI:0.705-0.935, P=0.004) and lymphocyte count (OR=0.609, 95%CI:0.383-0.970, P=0.037) may reduce the nutritional risk of children with TBM; while convulsions (OR=3.853, 95%CI:1.116-13.308, P=0.033) and increased level of CSF protein (OR=1.001,95%CI:1.000-1.002, P=0.015) may increase the nutritional risk of children with TBM. Similarly, the rate of complications and drug-induced liver injury was higher in the nutritional risk group (47 cases (75.8%) vs. 15 cases(30.0%), 31 cases (50.0%) vs.8 cases (16.0%), χ²=23.50, 14.10, all P<0.05). Moreover, the length of hospital stay was also longer in the nutritional risk group ((27±13) vs. (18±7) d, t=4.38, P<0.05). Conclusions: Children with TBM have a high incidence of nutritional risk. Convulsive, the level of serum albumin, the level of lymphocyte count and CSF protein may affect the nutritional risk of children with TBM. The nutritional risk group has a high incidence of complications and heavy economic burden.It is necessary to carry out nutritional screening and nutritional support for children with TBM as early as possible.
Female ; Humans ; Leukocyte Count ; Male ; Nutrition Assessment ; Nutritional Status ; Retrospective Studies ; Tuberculosis, Meningeal/diagnosis*