Combination of Ranibizumab and Dexamethasone intravitreal implant for macular edema secondary to retinal vein occlusion / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To compare the differences in the efficacy and safety of combination of intravitreal dexamethasone(Ozurdex)and ranibizumab or monotherapy of ranibizumab in eyes with macular edema secondary to retinal vein occlusion(RVO-ME).METHODS: Patients diagnosed with non-ischemic RVO-ME by fluorescein fundus angiography in our hospital from June 2020 to December 2022 were selected. All patients were initially treated with intravitreal injection of ranibizumab(0.5 mg), and 42 patients(42 eyes)who had central retinal thickness(CRT)≥300 μm after 2 wk were included. They were randomly divided into combined treatment group and monotherapy group. The combined treatment group(21 eyes)received Ozurdex intravitreal injection immediately, while the monotherapy group(21 eyes)was treated with ranibizumab intravitreal injection by 3+pro re nata(PRN). The changes of best corrected visual acuity(BCVA), CRT, and intraocular pressure before and at 2 wk, 1, 2, 3, 4, 5, and 6 mo after treatment were recorded, and the ocular or systemic complications were observed.RESULTS:The BCVA and CRT of all patients at 2 wk, 1, 2, 3, 4, 5, and 6 mo after treatment were significantly better than those before treatment(all P<0.01). There were statistical significance in the BCVA and CRT between two groups at 2 and 3 mo after treatment(all P<0.05). The most significant increase of BCVA in the combined treatment group occurred at 2 mo after treatment. The mean recurrence time of macular edema in the monotherapy group was 1.45±0.53 mo, with 4.21±0.78 injection times of ranibizumab. None of the patients showed serious complications after treatment. The most common complications in the combined treatment group were subconjunctival hemorrhage and elevated intraocular pressure, which were manageable with topical ocular hypotensive agents, and no patient required antiglaucoma or cataract surgery.CONCLUSION: Compared with monotherapy of ranibizumab, intravitreal injection of dexamethasone combined with ranibizumab can significantly improve the visual acuity and effectively reduce the macular edema in the treatment of RVO-ME, with a long duration of efficacy and less intravitreal injection of drugs.

Discovery, isolation and structural identification of alkaloid glycosides in six traditional Chinese medicine such as Coptis chinensis / 中国中药杂志

Alkaloids are important active ingredients occurring in many traditional Chinese medicines, and alkaloid glycosides are one of their existence forms. The introduction of saccharide units improves the water solubility of alkaloid glycosides thus presenting better biological activity.Because of the low content in plants, alkaloid glycosides have been not comprehensively studied. In this study, ultrahigh performance liquid chromatography-quadrupole time of flight-tandem mass spectrometry(UPLC-QTOF-MS/MS) was employed to identify and analyze the alkaloid glycosides in Coptis chinensis, Phellodendron chinense, Menispermum dauricum, Sinomenium acutum, Tinospora sagittata and Stephania tetrandra. The results showed that except Tinospora sagittata, the other five herbal medicines contained alkaloid glycosides. Furthermore, the alkaloid glycosides in each herbal medicine were identified based on UV absorption spectra, quasimolecular ion peaks in MS, fragment ions information in the MS/MS, and previous literature reports. A total of 42 alkaloid glycosides were identified. More alkaloid glycosides were identified in C. chinensis and Menispermum dauricum, and eleven in C. chinensis were potential new compounds. Furthermore, the alkaloid glycosides in the water extract of C. chinensis were coarsely se-parated by macroporous adsorption resin, purified by column chromatography with D151 cation exchange resin, ODS and MCI, combined with semi-preparative high performance liquid chromatography. Two new alkaloid glycosides were obtained, and their structures were identified by mass spectrometry and NMR data as(S)-7-hydroxy-1-(p-hydroxybenzyl)-2,2-N,N-dimethyl-1,2,3,4-tetrahydroisoquinoline-6-O-β-D-glucopyranoside and(S)-N-methyltetrahydropalmatubine-9-O-β-D-glucopyranoside, respectively. This study is of great significance for enriching the information about the chemical composition and the in-depth development of C. chinensis. Meanwhile, it can provide a reference for rapid identification and isolation of alkaloid glycosides from other Chinese herbal medicines.

Meta-analysis of efficacy and safety of cabozantinib in the treatment of advanced thyroid cancer / 中国药房

OBJECTIVE To review the efficacy and safety of cabozantinib in the treatment of advanced thyroid cancer. METHODS Retrieved from PubMed， the Cochrane Library， Embase， ClinicalTrials.gov， Wanfang data， VIP， CNKI and China Clinical Trials Registry， randomized controlled trials （RCTs） about cabozantinib （trial group） versus placebo （control group） were collected from the inception to Nov. 2022. After literature screening， data extraction and quality evaluation， meta-analysis was performed by using RevMan 5.4 software. RESULTS A total of 4 RCTs were included involving 588 patients. The results of the meta-analysis showed that the progression free survival （PFS） [HR＝0.24， 95%CI （0.19，0.31）， P＜0.000 01]， objective response rate （ORR） [RR＝31.46， 95%CI （6.32，156.75）， P＜0.000 1]， the incidence of grade 3-4 adverse event （AE） [RR＝2.15，95%CI （1.76，2.61），P＜0.000 01]， severe adverse event [RR＝1.78，95%CI （1.11，2.83），P＝0.02]， diarrhea [RR＝3.29，95%CI（1.62， 6.66），P＝0.001]， palmar-plantar erythrodysesthesia syndrome [RR＝28.19，95%CI （12.25，64.88），P＜0.000 01]， and hypertension [RR＝6.50，95%CI （3.90，10.83），P＜0.000 01] in trial group were significantly higher than control group； there was no statistical significance in overall survival （OS） [HR＝0.83，95%CI （0.67，1.02）， P＝0.07] or the incidence of fatigue [RR＝1.25，95%CI （0.78，1.98），P＝0.35] between the two groups. Subgroup analysis showed that PFS and ORR in patients with differentiated thyroid carcinoma （DTC） and medullary thyroid carcinoma （MTC） in the trial group were significantly higher than control group （P＜ 0.05）. There was no significant difference in OS of DTC and MTC patients in the trial group compared with the control group （P＞ 0.05）. CONCLUSIONS Cabozantinib can prolong PFS and increase ORR in patients with advanced thyroid cancer， but the incidence of AE is high.

Efficacy of traditional Chinese medicine combined with 131I in the treatment of Graves hyperthyroidism / 中华核医学与分子影像杂志

Objective:To explore the value of traditional Chinese medicine combined with 131I in the treatment of Graves hyperthyroidism. Methods:From March 2020 to July 2021, 90 patients (39 males, 51 females, age (33.2±7.0) years) with Graves hyperthyroidism who were diagnosed and treated in Changshu No.2 People′s Hospital were retrospectively analyzed. Patients were randomly divided into 3 groups ( n=30 in each group), including group A who received treatment of antithyroid drugs (ATD), group B who received treatment of traditional Chinese medicine, and group C who received treatment of 131I combined with traditional Chinese medicine. Thyroid function indicators and inflammatory indicators before treatment and 1, 3, and 6 months after treatment were determined, including free triiodothyronine (FT 3), free thyroxine (FT 4), thyroid stimulating hormone (TSH) and TSH receptor antibody (TRAb), and C-reactive protein (CRP), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α). One-way analysis of variance and χ2 test were used to analyze data. Results:The levels of FT 3, FT 4, TSH, TRAb, CRP, IL-6 and TNF-α in group A, B and C before treatment and 1, 3, 6 months after treatment were significantly different ( F values: 193.27-906.11, all P<0.05). The total effective rate in group C (100.0%, 30/30) was significantly higher than that in group A (86.7%, 26/30) or group B (83.3%, 25/30; χ2 values: 8.24, 9.83, P values: 0.006, 0.037), while there was no significant difference between group A and group B ( χ2=3.02, P=0.124). The incidence of adverse reactions in group B (46.7%, 14/30) was significantly higher than that in group A (30.0%, 9/30; χ2=6.59, P=0.042). And the incidence of adverse reaction in group C (13.3%, 4/30) was significantly lower than that in group A or group B ( χ2 values: 12.05, 7.20, P values: 0.004, 0.038). Conclusion:The curative effect of 131I combined with traditional Chinese medicine is effective and reliable, suggesting that clinical researches should be carried out together and perfected.

Pediatric clinical teaching reform based on early clinical teaching concept: taking the course of "New Medical Professional Experience Social Practice" as an example / 中华医学教育探索杂志

In order to implement the teaching philosophy of "early clinical, multiple clinical, and repeated clinical", this study takes the "New Medical Professional Experience Social Practice" as a research course, analyzes the reform of pediatric clinical teaching, and evaluates the teaching effectiveness through classroom interviews and post-class questionnaire surveys. The results showed that through the combination of online and offline learning and multiple evaluation models, it was found that students with more hands-on teaching content in offline teaching were more interested and evaluated. Eight-year students had higher participation in offline teaching than five-year students, and 8-year students also rated online teaching higher than five-year students. A total of 151 [84.36%(151/179)] students have learned about the clinical work of pediatricians through this course. The reform of pediatric clinical teaching based on the concept of early clinical teaching can achieve the teaching goal of early clinical practice and early contact for medical students.

Exploration and practice of hierarchical training model for improving professional ability of primary pediatricians / 中华医学教育探索杂志

At present, the routine specialized training for primary pediatricians (focusing on theoretical learning of public subjects) cannot meet the needs of primary pediatricians. In order to promote the development of children's medical care at the grassroots level and improve the quality, medical and clinical research abilities of regional pediatric medical personnel, the Children's Hospital of Chongqing Medical University has designed and built a "hierarchical training model for improving the professional ability of pediatricians" from the aspects of training objectives, training contents, training methods, construction and evaluation of training programs, and quality control. In addition, the 8-month "Pediatric Professional Basic Training" and the 9-month "Pediatric Professional Ability Improvement Training" were respectively carried out in Xianyang Children's Hospital. In the "Professional Basic Training", 88 trainees were comprehensively evaluated after training, 53 of whom were qualified or above. In the "Ability Improvement Training", 26 of the 29 students actually participated in the evaluation and reached the qualified level or above. Learners provided feedbacks that they have effectively improved their own knowledge structure, expanded their clinical diagnosis and treatment thinking and clinical research ideas, and provided some guidance for clinical work.

Glucose and serum deprivation under hypoxia treatment inducing oxidative stress and apoptosis in rat bone marrow mesenchymal stem cells through inhibition of Nrf2 signaling pathway / 解剖学报

Objective To investigate the effects of glucose and serum deprivation under hypoxia(GSDH)treatment on oxidative stress and apoptosis in rat bone marrow mesenchymal stem cells (BMSCs), so to provide an experimental support for improving the therapeutic efficacy of BMSCs. Methods The cell injury model was established by hypoxia (1% O

P450-mediated dehydrotyrosine formation during WS9326 biosynthesis proceeds via dehydrogenation of a specific acylated dipeptide substrate

WS9326A is a peptide antibiotic containing a highly unusual N-methyl-E-2-3-dehydrotyrosine (NMet-Dht) residue that is incorporated during peptide assembly on a non-ribosomal peptide synthetase (NRPS). The cytochrome P450 encoded by sas16 (P450Sas) has been shown to be essential for the formation of the alkene moiety in NMet-Dht, but the timing and mechanism of the P450Sas-mediated α,β-dehydrogenation of Dht remained unclear. Here, we show that the substrate of P450Sas is the NRPS-associated peptidyl carrier protein (PCP)-bound dipeptide intermediate (Z)-2-pent-1'-enyl-cinnamoyl-Thr-N-Me-Tyr. We demonstrate that P450Sas-mediated incorporation of the double bond follows N-methylation of the Tyr by the N-methyl transferase domain found within the NRPS, and further that P450Sas appears to be specific for substrates containing the (Z)-2-pent-1'-enyl-cinnamoyl group. A crystal structure of P450Sas reveals differences between P450Sas and other P450s involved in the modification of NRPS-associated substrates, including the substitution of the canonical active site alcohol residue with a phenylalanine (F250), which in turn is critical to P450Sas activity and WS9326A biosynthesis. Together, our results suggest that P450Sas catalyses the direct dehydrogenation of the NRPS-bound dipeptide substrate, thus expanding the repertoire of P450 enzymes that can be used to produce biologically active peptides.

PD-1 inhibitor plus anlotinib for metastatic castration-resistant prostate cancer: a real-world study / 亚洲男科学杂志(英文版)

Management and treatment of terminal metastatic castration-resistant prostate cancer (mCRPC) remains heavily debated. We sought to investigate the efficacy of programmed cell death 1 (PD-1) inhibitor plus anlotinib as a potential solution for terminal mCRPC and further evaluate the association of genomic characteristics with efficacy outcomes. We conducted a retrospective real-world study of 25 mCRPC patients who received PD-1 inhibitor plus anlotinib after the progression to standard treatments. The clinical information was extracted from the electronic medical records and 22 patients had targeted circulating tumor DNA (ctDNA) next-generation sequencing. Statistical analysis showed that 6 (24.0%) patients experienced prostate-specific antigen (PSA) response and 11 (44.0%) patients experienced PSA reduction. The relationship between ctDNA findings and outcomes was also analyzed. DNA-damage repair (DDR) pathways and homologous recombination repair (HRR) pathway defects indicated a comparatively longer PSA-progression-free survival (PSA-PFS; 2.5 months vs 1.2 months, P = 0.027; 3.3 months vs 1.2 months, P = 0.017; respectively). This study introduces the PD-1 inhibitor plus anlotinib as a late-line therapeutic strategy for terminal mCRPC. PD-1 inhibitor plus anlotinib may be a new treatment choice for terminal mCRPC patients with DDR or HRR pathway defects and requires further investigation.

Analysis on the Exemplary Role of Medical Youth in Public Health Emergencies / 中国医学伦理学

In recent years, due to the complex international situation, frequent outbreaks of public health emergencies, and the rapid development of various new media, negative emotions and various rumors often spread at an extremely fast speed within certain groups, and increase in geometric multiples. Medical youth, as young talents with medical professional knowledge, have a certain influence, and can adapt to the development of various new things in the new era and timely respond to various emergencies. They are also the backbone of various departments in hospitals in emergencies, especially public health emergencies. Therefore, combining the actual situation with on-site investigation to analyze the role model and exemplary role played by medical youth in public health emergencies, and further summarize and amplify this exemplary and pioneering role of medical youth through analysis and research, has important practical significance for fully exerting their positive role in such events.

Evaluation of the therapeutic effect of deuterium depleted water on gastroenteritis induced by 131I radiation in thyroid cancer treatment / 中国辐射卫生

Objective To investigate the therapeutic effect of oral administration of deuterium depleted water on gastroenteritis induced by 131I radiation in thyroid cancer treatment. Methods Fifty patients with papillary thyroid cancer treated with 131I in the Department of Nuclear Medicine of Changshu No.2 People’s Hospital from May 2022 to February 2023 were divided into control group and experimental group (25 patients in each group). Data were continuously collected throughout the study duration. The control group was orally administrated omeprazole enteric-coated capsules and purified water at 660 mL tid for 5 days. The experimental group received the same basic treatment as the control group except that deuterium depleted water was used instead of purified water. The incidence and alleviation of 131I radiation-induced gastroenteritis were observed and compared between the two groups using the Fisher’s exact test and Kaplan-Meier analysis. Results The number of gastroenteritis cases from day 1 to day 5 after 131I administration was 2 (8%), 5 (20%), 2 (8%), 1 (4%), and 0 (0%), respectively, in the experimental group, and 2 (8%), 8 (32%), 4 (16%), 3 (12%), and 1 (4%), respectively, in the control group. The incidence of gastroenteritis was significantly different between the two groups (χ2=4.064, P=0.044). After 5 days of treatment, the overall response rate of patients in the experimental group was 96%, which was significantly higher than 76% in the control group (χ2=9.105, P=0.025). Conclusion Oral administration of deuterium depleted water is effective in the relief of clinical symptoms of 131I radiation-induced gastroenteritis in thyroid cancer treatment. The clinical application of deuterium depleted water should be further investigated.

Increased autophagy of peripheral blood neutrophils and neutrophils extracellular traps formation in systemic lupus erythematosus / 细胞与分子免疫学杂志

Objective To explore the role of autophagy, apoptosis of neutrophils and neutrophils extracellular traps (NET) formation in systemic lupus erythematosus (SLE). Methods Thirty-six patients with SLE were recruited as research subjects, and 32 healthy controls matched accordingly were enrolled as control subjects. The expression levels of microtubule associated protein 1 light chain 3B (LC3B), autophagy-related gene5(ATG5), P62, B-cell lymphoma 2(Bcl2), Bcl2-related X protein (BAX) in neutrophils were detected by Western blot analysis. Flow cytometry was employed to analyze the expression of LC3B on neutrophils. The expression level of myeloperoxidase(MPO) in plasma was estimated by ELISA. Furthermore, neutrophils were cultured in vitro and stimulated by 100 nmol/L rapamycin and 10 μg/mL lipopolysaccharide (LPS) for 6 hours, respectively. And then, the expression levels of LC3B, ATG5, P62, Bcl2 and BAX in neutrophils were detected by Western blot analysis. The level of MPO in culture supernatant was detected by ELISA. The change of fluorescence intensity of NET in culture supernatant was assayed by SytoxTM Green staining combined with fluorescence spectrophotometry. Results Compared with healthy controls, the levels of autophagy and apoptosis of neutrophils and NET formation in SLE patients were increased. The level of apoptosis and NET formation was positively associated with neutrophil autophagy. The level of autophagy showed an increase but had no effect on apoptosis and NET formation for neutrophil stimulated by rapamycin. The levels of autophagy and NET formation also increased with no significant effect on apoptosis for neutrophil induced by LPS. Conclusion The autophagy, apoptosis and NET formation of neutrophils increase in SLE patients. The activation of autophagy and NET in neutrophils possibly result from the inflammatory internal environment in SLE patients.

Clinical Outcome and Risk Factors of Treatment Failure of Peritoneal Dialysis Associated Peritonitis Caused by Klebsiella Pneumoniae:A Multicenter Study / 中国医学科学院学报

Objective To investigate the treatment outcomes,prognosis,and risk factors of treatment failure of peritoneal dialysis associated peritonitis (PDAP) caused by Klebsiella pneumoniae,and thus provide clinical evidence for the prevention and treatment of this disease. Methods The clinical data of PDAP patients at four peritoneal dialysis centers from January 1,2014 to December 31,2019 were collected retrospectively.The treatment outcomes and prognosis were compared between the patients with PDAP caused by Klebsiella.pneumoniae and that caused by Escherichia coli.Kaplan-Meier method was employed to establish the survival curve of technical failure,and multivariate Logistic regression to analyze the risk factors of the treatment failure of PADP caused by Klebsiella pneumoniae. Results In the 4 peritoneal dialysis centers,1034 cases of PDAP occurred in 586 patients from 2014 to 2019,including 21 cases caused by Klebsiella pneumoniae and 98 cases caused by Escherichia coli.The incidence of Klebsiella pneumoniae caused PDAP was 0.0048 times per patient per year on average,ranging from 0.0024 to 0.0124 times per patient per year during 2014-2019.According to the Kaplan-Meier survival curve,the technical failure rate of Klebsiella pneumoniae caused PDAP was higher than that of Escherichia coli caused PDAP (P=0.022).The multivariate Logistic regression model showed that long-term dialysis was an independent risk factor for the treatment failure of Klebsiella pneumoniae caused PDAP (OR=1.082,95%CI=1.011-1.158,P=0.023).Klebsiella pneumoniae was highly sensitive to amikacin,meropenem,imipenem,piperacillin,and cefotetan,and it was highly resistant to ampicillin (81.82%),cefazolin (53.33%),tetracycline (50.00%),cefotaxime (43.75%),and chloramphenicol (42.86%). Conclusion The PDAP caused by Klebsiella pneumoniae had worse prognosis than that caused by Escherichia coli,and long-term dialysis was an independent risk factor for the treatment failure of Klebsiella pneumoniae caused PDAP.

Pathogenic characterization of Klebsiella pneumoniae resistant to carbapenems and polymyxin / 中华预防医学杂志

Objective: Analysis and investigation of pathogenic characteristics of polymyxin-and carbapenem-resistant Klebsiella pneumoniae (PR-CRKP). Methods: A total of 23 PR-CRKP strains isolated from clinical specimens from the General Hospital of Southern Theater Command from March 2019 to July 2021 were retrospectively collected, Whole-genome sequencing was performed on 23 PR-CRKP strains, resistance genes were identified by comparison of the CARD and the ResFinder database, high-resolution typing of PR-CRKP strains was analyzed by core genomic multilocus sequencing (cgMLST) and single nucleotide polymorphism (SNP); polymyxin resistance genes were determined by PCR and sequencing. Results: All PR-CRKP strains were KPC-2 producing ST11 types. cgMLST results showed that the evolutionary distance between the PR-CRKP strains and Klebsiella pneumoniae in mainland China was 66.44 on average, which is more closely related than foreign strains; the 23 PR-CRKP strains were divided into 3 main subclusters based on SNP phylogenetic trees, with some aggregation among Clade 2-1 in the isolation department and date. The two-component negative regulatory gene mgrB has seven mutation types including point mutations, different insertion fragments and different insertion positions. Conclusion: The close affinity of PR-CRKP strains indicate the possibility of nosocomial clonal transmission and the need to strengthen surveillance of PR-CRKP strains to prevent epidemic transmission of PR-CRKP.

Comparison on anti-inflammatory activity of Gynostemma pentaphyllum processed with different methods / 中国中药杂志

The aim of this study is to investigate the effects of Gynostemma pentaphyllum dried with two different methods(air drying and heating) on inflammation in acute lung injury(ALI) mice in vivo and in vitro. Lipopolysaccharide(LPS) was sprayed into the airway of wild type C57BL/6J male mice to establish the model, and the drug was injected into the tail vein 24 h after modeling. Lung function, lung tissue wet/dry weight(W/D) ratio, the total protein concentration, interleukin 6(IL-6), IL-1β, and tumor necrosis factor-α(TNF-α) in the bronchoalveolar lavage fluid(BALF), and pathological changes of the lung tissue were used to evaluate the effects of different gypenosides on ALI mice. The results showed that total gypenosides(YGGPs) and the gypenosides substituted with one or two glycosyl(GPs_(1-2)) in the air-dried sample improved the lung function, significantly lowered the levels of IL-1β and TNF-α in BALF, and alleviated the lung inflammation of ALI mice. Moreover, GPs_(1-2) had a more significant effect on inhibiting NO release in RAW264.7 cells. This study showed that different drying methods affected the anti-inflammatory activity of G. pentaphyllum, and the rare saponins in the air-dried sample without heating had better anti-inflammatory activity.

Influences of balance training on shooting quality in basketball players / Influências do treinamento de equilíbrio na qualidade do arremesso em jogadores de basquete / Influencias del entrenamiento de equilibrio sobre la calidad del lanzamiento en jugadores de baloncesto

ABSTRACT Introduction: Inspired by the traditional way of basketball training, this paper presents a new method of balance training, which can effectively improve basketball players' coordination ability and shooting skills. Objective: Explore whether balance training can improve the coordination ability and shooting ability of athletes. Methods: Twenty players from a professional basketball team were randomly selected as volunteers, and divided into two groups randomly. The control group adopted the traditional basketball training model. In contrast, the experimental group adopted the new balance training method, introducing basketball training contents such as technical manipulation, psychological training, physical training, tactical analysis, and instant selection. Results: The hitting rate of shooting and jumping increased from 25.64±18.02 to 39.25±12.29, with a rate of change of 53.04%. The running time of the Illinois run was reduced from 15.79±1.08 seconds to 8.679±1.42 seconds, and the rate of change of time reached -45.04%. Conclusion: The balance training method plays an important role in promoting basketball players' coordination and shooting ability, and can effectively improve the rate of these players. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

RESUMO Introdução: Este trabalho apresenta, inspirado no modo tradicional de treinamento de basquetebol, um novo método de treino de equilíbrio, que pode efetivamente melhorar a capacidade de coordenação e as habilidades de arremesso dos jogadores de basquetebol. Objetivo: Explorar se o treinamento de equilíbrio pode melhorar a capacidade de coordenação e a habilidade de arremesso dos atletas. Métodos: Vinte jogadores de uma equipe profissional de basquetebol foram selecionados aleatoriamente como voluntários, divididos em dois grupos aleatoriamente. O grupo de controle adotou o modelo tradicional de treinamento de basquete, enquanto o grupo experimental adotou o novo método de treino de equilíbrio, introduzindo conteúdos de treinamento de basquete tais como manipulação técnica, treinamento psicológico, treinamento físico, análise tática e seleção instantânea. Resultados: O índice de acerto de arremesso e de saltos aumentou de 25,647±18,02 para 39,25±12,29, com um índice de variação de 53.04%. O tempo de percurso da corrida Illinois foi reduzido de 15,79±1,08 segundos para 8,67±1,42 segundos, e o índice de variação de tempo foi reduzido em 45.04%. Conclusão: O método de treinamento de equilíbrio apresenta um papel importante na promoção da capacidade de coordenação e de arremesso dos jogadores de basquete, podendo efetivamente melhorar o índice desses jogadores. Nível de evidência II; Estudos terapêuticos - investigação dos resultados do tratamento.

RESUMEN Introducción: Este artículo presenta, inspirado en la forma tradicional de entrenamiento de baloncesto, un nuevo método de entrenamiento del equilibrio, que puede mejorar eficazmente la capacidad de coordinación y las habilidades de tiro de los jugadores de baloncesto. Objetivo: Explorar si el entrenamiento de equilibrio puede mejorar la capacidad de coordinación y las habilidades de tiro de los atletas. Métodos: Veinte jugadores de un equipo profesional de baloncesto fueron seleccionados al azar como voluntarios, divididos en dos grupos aleatoriamente. El grupo de control adoptó el modelo tradicional de entrenamiento de baloncesto, mientras que el grupo experimental adoptó el nuevo método de entrenamiento del equilibrio, introduciendo contenidos de entrenamiento de baloncesto como la manipulación técnica, el entrenamiento psicológico, el entrenamiento físico, el análisis táctico y la selección instantánea. Resultados: El índice de acierto en tiros y saltos aumentó de 25,64±18,02 a 39,25±12,29, con un índice de variación del 53,04%. El tiempo de carrera de la carrera de Illinois se redujo de 15,79±1,08 segundos a 8,67±1,42 segundos, y el índice de variación del tiempo alcanzó el -45,04%. Conclusión: El método de entrenamiento del equilibrio presenta un papel importante en la promoción de la coordinación y la capacidad de tiro de los jugadores de baloncesto, y puede mejorar eficazmente el índice de estos jugadores. Nivel de evidencia II; Estudios terapéuticos - investigación de los resultados del tratamiento.

Application of delta checks in clinical laboratories / 中华检验医学杂志

The delta checks are one of the patient-based quality control options to identify the errors and the significant changes in patients′ condition. Compared with the traditional internal quality control method, the delta checks have the characteristics of real-time monitoring, with no additional detecting cost, thus the delta checks are widely used in clinical laboratories. In addition, the delta checks are also useful in the auto-verification system to screen out the abnormal results for manual verification. This article reviewed the delta checks′ development history, parameters selection, application values in quality control and auto-verification.

A case of cicatricial female pattern hair loss / 中华皮肤科杂志

A case of cicatricial female pattern hair loss was reported. A 36-year-old female patient presented with gradually aggravated hair loss for more than 10 years. Skin examination showed diffuse hair thinning on the scalp, thin and soft hairs, and some pencil eraser-sized areas of focal atrichia. TrichoScan examination revealed markedly decreased hair density on the forehead, variability in hair diameter greater than 20%, and increased proportions of vellus hairs. Dermoscopic examination showed increased numbers of vellus hairs, plenty of focal atrichia areas measuring 3 - 5 mm in diameter, loss of some follicular ostia, and confluent white dots. Histopathological examination of vertical and transverse scalp sections showed predominantly distributed miniaturized hair follicles with lichenoid folliculitis around the infundibulum and isthmus, concentrically layered perifollicular fibrosis, a marked decrease in the number of hair follicles compared with healthy people of the same age, increased proportions of vellus hairs, a large number of miniaturized hair follicles and follicular streamers, and formation of follicular micro-scars. The patient was diagnosed with cicatricial female pattern hair loss. She received topical treatment with 5% minoxidil liniment once a day, and alternate treatment with topical tacrolimus ointment and clobetasol propionate ointment, as well as oral spironolactone at a dose of 20 mg twice a day and compound glycyrrhizin capsules at a dose of 50 mg thrice a day. After half a year of treatment, there was no marked aggravation of hair loss, and the follow-up continued.

Secondary metabolites of endophyte fungi Xylaria sp. from Coptis chinensis / 中国中药杂志

Two new polyketides, lasobutone A(1) and lasobutone B(2), along with three known compounds, guignardianone C(3), guignardic acid(4), and 4-hydroxy-17R-methylincisterol(5), were isolated from the endophytic fungi Xylaria sp. by silica gel, MCI, and preparative HPLC, which was separated from the Chinese medicinal material Coptis chinensis and cultivated through solid fermentation with rice. Their structures were elucidated on the basis of spectroscopic methods, such as MS, NMR, IR, UV, and ECD. Compounds 2 and 4 showed inhibitory activities against the nitric oxide(NO) production in the LPS-induced macrophage RAW264.7 with IC_(50) values of 58.7 and 42.5 μmol·L~(-1) respectively, while compound 5 exhibited cytotoxic activities against HT-29 with IC_(50) value of 14.3 μmol·L~(-1).

Evaluation and optimization of content determination method of Chrysanthemi Flos in Chinese Pharmacopoeia / 中国中药杂志

This study discovered that the resolution of 3,5-O-dicaffeoylquinic acid(isochlorogenic acid A) in the content determination method of Chrysanthemi Flos in Chinese Pharmacopoeia(ChP)(2020 edition) was poor, which affected accurate quantification. We tested the method in ChP with chromatographic columns of seven brands to clarify the problems in the existing method, optimized the chromatographic conditions by adjusting the mobile phase composition and elution ratio and replacing the chromatographic column packing, and carried out the reproducibility assay for the new method. The two methods were compared for the content determination results of Chrysanthemi Flos prepared from six different varieties. As evaluated by the resolution based on different chromatographic columns of seven brands, the existing method failed to separate isochlorogenic acid A and isochlorogenic acid D well. The peaks of the two components were not completely separated on three chromatographic columns, and isochlorogenic acid A and isochlorogenic acid D generated a co-effluent peak in the other four columns. Isochlorogenic acid A and isochlorogenic acid D could be completely separated under the optimized chromatographic conditions. The difference in the peak areas of isochlorogenic acid A+isochlorogenic acid D obtained by the optimized method and the method in ChP was not significant, with deviation less than 3.0%, which further proved that the result measured by the method in ChP was the co-effluent of isochlorogenic acid A and isochlorogenic acid D. The optimized method can ensure the accurate quantification of isochlorogenic acid A. The existing content determination method of Chrysanthemi Flos has the problem of poor resolution. It is recommended to revise the chromatographic conditions for the content determination method of Chrysanthemi Flos to improve the resolution of isochlorogenic acid A and ensure its accurate quantification.