Objective To observe the clinical efficacy and safety of cattle encephalon glycoside and ignotin injection combined with reduced glutathione injection and levodopa and benserazide hydrochloride tablets in the treatment of elderly patients with Parkinson's disease complicated with mild cognitive impairment(PD-MCI).Methods Elderly patients with PD-MCI were randomly divided into control group and treatment group.Two groups were treated with levodopa and benserazide hydrochloride tablet for anti-Parkinson's disease therapy,and on this basis,the control group was given intravenous drip of reduced glutathione 1.2 g(qd),and the treatment group was given intravenous drip of cattle encephalon glycoside and ignotin injection 10 mL(qd)on the basis of the control group.Both groups of patients were treated continuously for 4 weeks.The clinical efficacy,serum regulated upon activation,normal T cell expressed and secreted(RANTES),α-synuclein(α-syn),brain-derived neurotrophic factor precursor protein(pro-BDNF),catalase(CAT),total superoxide dismutase(T-SOD),cognitive function and quality of life were compared between both groups,and the adverse drug reactions were observed.Results In treatment group,48 cases were enrolled but 3 cases were lost,thus 45 cases were finally included in the analysis.In control group,48 cases were enrolled but 6 cases were lost,thus 42 cases were included in the analysis.After treatment,the total effective rates in treatment and control groups were 93.33％(42 cases/45 cases)and 76.19％(32 cases/42 cases)respectively(P＜0.05).After treatment,RANTES levels in treatment group and control group were(25.57±4.62)and(30.29±4.92)pg·mL-1;α-syn levels were(3.08±0.76)and(3.74±1.09)μg·L-1;pro-BDNF levels were(144.65±17.54)and(182.26±15.75)ng·mL-1;CAT levels were(168.54±10.64)and(160.48±9.74)kU·L-1;T-SOD levels were(123.75±20.54)and(110.18±22.66)kU·L-1;Montreal Cognitive Assessment Scale scores were(25.08±2.75)and(23.14±2.64)points;and 39-item Parkinson's Disease Quality of Life Questionnaire scores were(45.84±8.42)and(50.34±7.62)points,respectively.The differences of above indexes were statistically significant between two groups(all P＜0.05).The adverse drug reactions in treatment group were arrhythmia,dizziness,chills and gastrointestinal discomfort.The adverse drug reactions in control group were transient thrombocytopenia and arrhythmia.The total incidences of adverse drug reactions in treatment group and control group were 8.89％and 4.76％wthout significant difference(P＞0.05).Conclusion Cattle encephalon glycoside and ignotin injection combined with reduced glutathione injection and levodopa and benserazide hydrochloride tablets has exact clinical efficacy in the treatment of elderly patients with PD-MCI,and it can significantly enhance the neuroprotective and antioxidant effects and improve the cognitive function and quality of life of patients,and it does not increase the incidence rate of adverse drug reactions.

Objective To establish an ultra-high performance liquid phase tandem triple quadrupole mass spectrometry method for the determination of L-synephrine in rat plasma and to study its pharmacokinetics.Methods The plasma samples were precipitated by acetonitrile vortex,centrifuged,dried by nitrogen,dissolved by mobile phase,and then analyzed.Chromatographic column:Shiseido CAPCELL PAK CR(1∶4)column(2.0 mm × 150.0 mm,5 μm),temperature:25 ℃.Mobile phase:Acetonitrile:0.1％formic acid solution(containing 10 mmoL·L-1 ammonium formate)(73∶27)with flow rate:0.3 mL·min-1 and injection volume was 2 μL.The electrospray ion source ionization and positive ion multiple reaction monitoring mode were used for mass spectrometry detection,and biological sample methodology verification was carried out according to requirements.After intragastric administration with 5 mg·kg-1 dose of L-synephrine,blood samples were collected at different time points to investigate the pharmacokinetic characteristics of L-synephrine in rats.Results L-synephrine showed a good linear relationship in the range of 2-800 ng·mL-1,the lowest limit of quantification of L-synephrine was 2 ng·mL-1.Precision,extraction recovery,matrix effect,accuracy,dilution effect and residual effect all meet the requirements all met the requirements.The main pharmacokinetic parameters:Cmax were(464.83±76.68)ng·L-1,tmax were(0.67±0.26)h,t1/2z were(1.89±0.48)h,AUC0-t were(602.26±42.25)ng·mL-1·h-1,AUC0-∞ were(612.28±41.18)ng·mL-1·h-1.Conclusion The established ultra high performance liquid chromatography-tandem triple quadrupole mass spectrometry method for the determination of L-synephrine in rat plasma is simple and rapid,and can be used for the determination of L-synephrine in plasma.

Objective: To assess the efficacy and safety of polymyxin B in neutropenic patients with hematologic disorders who had refractory gram-negative bacterial bloodstream infection. Methods: From August 2021 to July 2022, we retrospectively analyzed neutropenic patients with refractory gram-negative bacterial bloodstream infection who were treated with polymyxin B in the Department of Hematology of the First Affiliated Hospital of the Soochow University between August 2021 to July 2022. The cumulative response rate was then computed. Results: The study included 27 neutropenic patients with refractory gram-negative bacterial bloodstream infections. Polymyxin B therapy was effective in 22 of 27 patients. The median time between the onset of fever and the delivery of polymyxin B was 3 days [interquartile range (IQR) : 2-5]. The median duration of polymyxin B treatment was 7 days (IQR: 5-11). Polymyxin B therapy had a median antipyretic time of 37 h (IQR: 32-70). The incidence of acute renal dysfunction was 14.8% (four out of 27 cases), all classified as "injury" according to RIFLE criteria. The incidence of hyperpigmentation was 59.3%. Conclusion: Polymyxin B is a viable treatment option for granulocytopenia patients with refractory gram-negative bacterial bloodstream infections.
Humans ; Polymyxin B/adverse effects* ; Retrospective Studies ; Gram-Negative Bacterial Infections/complications* ; Fever/drug therapy* ; Sepsis/drug therapy* ; Anti-Bacterial Agents/therapeutic use* ; Bacteremia/complications*

B-Lymphocytes ; Graft vs Host Disease ; Humans ; Immunoglobulin D ; T Follicular Helper Cells ; T-Lymphocytes, Helper-Inducer

OBJECTIVE: To evaluate the early and mid-term clinical results of medial parapatellar soft tissue overlapping suture in total knee arthroplasty for treatment of severe osteoarthritis combined with permanent patellar dislocation. METHODS: We retrospectively analyzed the data of 12 patients (12 knees) diagnosed with severe knee osteoarthritis combined with permanent patellar dislocation undergoing total knee arthroplasty with medial parapatellar soft tissue overlapping suture. Knee Society Score (KSS), University of California Los Angeles (UCLA) activity-level rating, Visual Analog Scale (VAS) pain score, and knee range of motion of the patients were assessed before and 2 years after the surgery. Anteroposterior and lateral radiographs of the knee joint, full-length standing radiographs of the lower limbs and patellar axial radiographs were evaluated. RESULTS: The mean Knee Society Score of the patients increased from 34.2±11.1 before surgery to 73.5±6.3 at two years after the surgery (P < 0.001). The UCLA activity-level rating increased from an average of 3.8 ± 0.8 before surgery to 5.8 ± 0.6 at two years postoperatively (P=0.003). The mean VAS pain score decreased from 42.8±6.0 before surgery to 20.1±3.7 (P < 0.001) and the range of motion of the knee joint increased from 74.6±8.9 degrees to 97.5±4.5 degrees at two years (P < 0.001). The radiographs showed no signs of subluxation or dislocation of the patella in all the patients. CONCLUSIONS Medial parapatellar soft tissue overlapping suture in total knee arthroplasty can achieve good early and mid-term clinical results for treatment of severe osteoarthritis combined with permanent patellar dislocation.
Arthroplasty, Replacement, Knee/methods* ; Humans ; Osteoarthritis, Knee/surgery* ; Patella/surgery* ; Retrospective Studies ; Sutures

Objective: To analyze the clinical epidemiological characteristics including composition of pathogens , clinical characteristics, and disease prognosis acute bacterial meningitis (ABM) in Chinese children. Methods: A retrospective analysis was performed on the clinical and laboratory data of 1 610 children <15 years of age with ABM in 33 tertiary hospitals in China from January 2019 to December 2020. Patients were divided into different groups according to age,<28 days group, 28 days to <3 months group, 3 months to <1 year group, 1-<5 years of age group, 5-<15 years of age group; etiology confirmed group and clinically diagnosed group according to etiology diagnosis. Non-numeric variables were analyzed with the Chi-square test or Fisher's exact test, while non-normal distrituction numeric variables were compared with nonparametric test. Results: Among 1 610 children with ABM, 955 were male and 650 were female (5 cases were not provided with gender information), and the age of onset was 1.5 (0.5, 5.5) months. There were 588 cases age from <28 days, 462 cases age from 28 days to <3 months, 302 cases age from 3 months to <1 year of age group, 156 cases in the 1-<5 years of age and 101 cases in the 5-<15 years of age. The detection rates were 38.8% (95/245) and 31.5% (70/222) of Escherichia coli and 27.8% (68/245) and 35.1% (78/222) of Streptococcus agalactiae in infants younger than 28 days of age and 28 days to 3 months of age; the detection rates of Streptococcus pneumonia, Escherichia coli, and Streptococcus agalactiae were 34.3% (61/178), 14.0% (25/178) and 13.5% (24/178) in the 3 months of age to <1 year of age group; the dominant pathogens were Streptococcus pneumoniae and the detection rate were 67.9% (74/109) and 44.4% (16/36) in the 1-<5 years of age and 5-<15 years of age . There were 9.7% (19/195) strains of Escherichia coli producing ultra-broad-spectrum β-lactamases. The positive rates of cerebrospinal fluid (CSF) culture and blood culture were 32.2% (515/1 598) and 25.0% (400/1 598), while 38.2% (126/330)and 25.3% (21/83) in CSF metagenomics next generation sequencing and Streptococcus pneumoniae antigen detection. There were 4.3% (32/790) cases of which CSF white blood cell counts were normal in etiology confirmed group. Among 1 610 children with ABM, main intracranial imaging complications were subdural effusion and (or) empyema in 349 cases (21.7%), hydrocephalus in 233 cases (14.5%), brain abscess in 178 cases (11.1%), and other cerebrovascular diseases, including encephalomalacia, cerebral infarction, and encephalatrophy, in 174 cases (10.8%). Among the 166 cases (10.3%) with unfavorable outcome, 32 cases (2.0%) died among whom 24 cases died before 1 year of age, and 37 cases (2.3%) had recurrence among whom 25 cases had recurrence within 3 weeks. The incidences of subdural effusion and (or) empyema, brain abscess and ependymitis in the etiology confirmed group were significantly higher than those in the clinically diagnosed group (26.2% (207/790) vs. 17.3% (142/820), 13.0% (103/790) vs. 9.1% (75/820), 4.6% (36/790) vs. 2.7% (22/820), χ²=18.71, 6.20, 4.07, all P<0.05), but there was no significant difference in the unfavorable outcomes, mortility, and recurrence between these 2 groups (all P>0.05). Conclusions: The onset age of ABM in children is usually within 1 year of age, especially <3 months. The common pathogens in infants <3 months of age are Escherichia coli and Streptococcus agalactiae, and the dominant pathogen in infant ≥3 months is Streptococcus pneumoniae. Subdural effusion and (or) empyema and hydrocephalus are common complications. ABM should not be excluded even if CSF white blood cell counts is within normal range. Standardized bacteriological examination should be paid more attention to increase the pathogenic detection rate. Non-culture CSF detection methods may facilitate the pathogenic diagnosis.
Adolescent ; Brain Abscess ; Child ; Child, Preschool ; Escherichia coli ; Female ; Humans ; Hydrocephalus ; Infant ; Infant, Newborn ; Male ; Meningitis, Bacterial/epidemiology* ; Retrospective Studies ; Streptococcus agalactiae ; Streptococcus pneumoniae ; Subdural Effusion ; beta-Lactamases

OBJECTIVE: To construct an acute myeloid leukemia cell line stably expressing CD123-CLL1 so as to provide an "in vitro" model for studying the role of CD123 and CLL-1 in leukemia and the treatment targeting CD123 and CLL-1. METHODS: The recombinant plasmid of lentivirus was constructed by synthesizing CD123 and CLL-1 sequences and PCR homologous recombination. The lentivirus vector was packaged by three-plasmid packaging system. After collecting the supernatant of lentivirus, the virus titer was determined by quantitative PCR. K562 leukemia cells were collected and transtected with virus supernatant. Leukemia cell line stably expressing the target gene were screened by purinomycin. The expression levels of CD123 and CLL-1 were detected by RT-PCR and flow cytometry. RESULTS: The lentiviral vector was successfully constructed, and identified by agarose gel electrophoresis and gene sequencing, then the virus titer of the supernatant was up to 5.81×10 CONCLUSION Lentiviral vector expressing CD123-CLL1 has been successfully constructed, and K562 leukemia cell line stably expressing CD123 and CLL-1 has been successfully obtained.
Cell Line, Tumor ; Genetic Vectors ; Humans ; Interleukin-3 Receptor alpha Subunit ; K562 Cells ; Lentivirus/genetics* ; Leukemia, Lymphocytic, Chronic, B-Cell/genetics* ; Plasmids ; Transfection

Metallomics is a frontier interdisciplinary subject at its vigorous development stage. Its goal is to systematically study the content, distribution, chemical species, structural characteristics and functions of metal elements in biological system. It is also a comprehensive discipline to study the existing state and function of free or complex metal elements in life. Metallomics is an ideal tool to study the biological behavior of inorganic elements, which can be used to solve many problems in the research of mineral Chinese medicine(MCM). It provides a strong theoretical basis and technical support for the research of MCM. Its theory and methods provide re-ference and enlightenment for the in-depth study of MCM, and also provide new ideas and open up new ways for the research of MCM. The application of metallomics theory and methods in the research of MCM is of great significance to reveal the material basis and mec-hanism of MCM, promote the process of basic research on MCM, fully exploit and utilize medicinal mineral resources and carry forward the traditional MCM treasure in China. In this paper, we introduced the concept, academic development, research content and research methods of metallomics, and discussed the application prospects of metallomics in the analysis of inorganic element composition characteristics and quality control, material basis and mechanism of MCM, so as to provide reference for further researches on MCM.
China ; Drugs, Chinese Herbal ; Medicine, Chinese Traditional ; Minerals ; Quality Control

Objective: To provide the new quality control means for Alumen by investigating the elemental differences between calcined Alumen and its counterfeit processed products of ammonium alum, and establishing their characteristic chromatogram. Method: The contents of 22 inorganic elements both in calcined Alumen and processed products of ammonium alum were determined by means of inductively coupled plasma (ICP)-optical emission spectrometer-mass spectrometry (ICP-OES/ICP-MS),SPSS 16.0 was used for cluster analysis (CA) while SIMCA-P 13.0 with t-test and Rank-Sum test was used to identify the differential inorganic elements. In addition, the characteristic spectrum of the inorganic elements for calcined Alumen and counterfeit calcined alumen were established. Result: Calcined Alumen had highest contents of K and Al while counterfeit calcined Alumen has highest contents of Al and Fe;Cr,Sr,and Mn contents in calcined Alumen were relatively higher,while Mn,Ti,and Ga contents in processed products of ammonium alum were relatively higher. The content of K in calcined Alumen was about 205 times of that of counterfeit products. On the contrary,the average contents of Fe,Ti,Mn and Ga in counterfeit products of ammonium alum were much higher than those in calcined Alumen,33,46,38, 27 times, respectively. A total of 18 samples were clustered into two categories in CA:calcined Alumen and processed products of ammonium alum. 18 inorganic elements showed significant difference in contents(P<0.05),Be, Mg,Al,K,Ti,V,Mn,Fe,Co,Ni,Cu,Ga,As,Sn,Sb,Hg,Tl,and Pb respectively. Characteristic spectrum of 21 inorganic elements in calcined Alumen and counterfeit calcined Alumen were established. Conclusion: This method can be used for quality control of calcined Alumen.

Objective: Ammonium alum is a common counterfeit of Alumen,and the processed product of ammonium alum is a common counterfeits of calcined Alumen. This paper aims to establish a method for identifying Alumen,calcined Alumen,ammonium alum and their processed products. Method: The samples were analyzed by scanning electron microscope (SEM) and X ray diffraction (XRD) in this paper. Result: Ammonium alum and Alumen showed obvious changes in morphology after processing. Both Alumen and ammonium alum showed obvious differences in morphology at×250 and×1 000 times microscope. Alumen presented irregular fragments,clear edge corners,smooth surface,scattered irregular small particles,occasional holes and longitudinal edges. Ammonium alum presented irregular clumps,blunt edges,not obvious edges and corners,uneven surface,scattered smaller and round-like particles. The difference in morphology was not obvious at×250 times microscope between Alumen and ammonium alum processed products. While at×1 000 times,the surface of calcined Alumen was uneven with coarse particles; the surface of counterfeit calcined Alumen was flat,and the coarse particle characteristics were not obvious. XRD can be used to rapidly and accurately identify the primary phase of Alumen,calcined Alumen,ammonium alum and ammonium alum processed products:KAl(SO₄)₂·12H₂O,NH₄Al(SO₄)₂·12H₂O,KAl(SO₄)₂,and NH₄Al(SO₄)₂ respectively, with 2θ angle characteristic value of 23,12,22 and 5 respectively for XRD peak. Conclusion: SEM and XRD techniques can be used for the identification of Alumen,calcined Alumen,ammonium alum and their counterfeit products.