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Invasive infection caused by hypervirulent Klebsiella pneumoniae (HvKP) has been reported worldwide. Most of the patients are community population, related to diabetes mellitus (DM), chronic liver disease and other basic diseases, which prone to systemic migratory infection. In this study, we collected 377 patients with community acquired Klebsiella pneumoniae liver abscess in our hospital from January 2013 to December 2018, 65.8% of whom were male, and 49.6% had DM. Patients with DM are prone to eye and central nervous system (CNS) infection, which need continuous local abscess drainage during treatment. Among them, patients with poor blood glucose control have a higher rate of blood stream infections (BSI). 219 strains of HvKP were obtained, with K1/K2 Serotype accounted for 81.7%. The incidence of BSI in K2 patients was higher than that in K1 patients. The PCR results indicate that the carrying rate of virulence genes (rmpAãareoãkfuãallSãiroNãmagAãugeãwcaG) in K1/K2 type strains is significantly higher than that in non K1/K2 type strains. ST23 and ST65 are the most common multilocus sequence typing (MLST), which belong to K1 and K2 Serotype respectively. All of HvKP strains showed high sensitivity to commonly used clinical antibiotics other than ampicillin, with 54.3% of the strains exhibiting high viscosity characteristics. Meanwhile, 35 classic Klebsiella pneumoniae (cKP) strains were collected, and their serum typing is mainly non K1/K2. The carrying rate of virulence genes and viscosity degree in HvKP are significantly higher than those in cKP. Primary liver abscess caused by HvKP is prone to multiple tissue and organ infections, but it shows higher sensitivity to most commonly used antibiotics in clinical practice except for ampicillin. After effective treatment, the overall prognosis of patients is better. This study analyzes the pathogenic characteristics of HvKP and elaborates on the clinical characteristics of patients, which can provide reference for clinical and scientific research work.
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Infecciones Comunitarias Adquiridas , Infecciones por Klebsiella , Klebsiella pneumoniae , Absceso Hepático , Humanos , Klebsiella pneumoniae/patogenicidad , Klebsiella pneumoniae/genética , Klebsiella pneumoniae/aislamiento & purificación , Masculino , Infecciones por Klebsiella/microbiología , Infecciones por Klebsiella/epidemiología , Femenino , Persona de Mediana Edad , Absceso Hepático/microbiología , Infecciones Comunitarias Adquiridas/microbiología , Infecciones Comunitarias Adquiridas/epidemiología , Anciano , Virulencia , Antibacterianos/uso terapéutico , Antibacterianos/farmacología , Adulto , Diabetes Mellitus/microbiología , Tipificación de Secuencias Multilocus , Complicaciones de la Diabetes/microbiología , Factores de Virulencia/genética , Pruebas de Sensibilidad MicrobianaRESUMEN
The disease caused by methicillin-resistant Staphylococcus aureus (MRSA) is a global public health challenge that threatens society and patients seriously. Therefore, the molecular epidemiology and change trend of MRSA is essential for the control and treatment of diseases caused by the pathogen in their regions. To explore molecular epidemiology of MRSA in Hangzhou, we collected 162 MRSA isolates from 2012 to 2018, conducted the antimicrobial susceptibility and used polymerase chain reaction(PCR) to test the molecular typing including multilocus sequence typing (MLST), staphylococcal chromosome cassette mec (SCCmec), staphylococcal protein A (spa A) and Panton-Valentine leucocidin (PVL). All the strains was divided into community-associated MRSA (CA-MRSA) or hospital-associated MRSA (HA-MRSA). 162 MRSA isolates were divided into 16 STs and 30 spa types. The major ST type was ST5 (96/162, 59.3%) and the predominant spa type was t311 (83/162, 51.2%). Five SCCmec types were found and the most common SCCmec type was type II (101/162, 61.7%). ST5-II-t311 was the predominant MRSA clone. And the prevalence of ST5 MRSA gradually declined from 2014 to 2018 but the prevalence of ST59 MRSA significantly increased. At the same time, livestock-associated methicillin-resistant Staphylococcus aureus(LA-MRSA) ST398 and ST9 were detected. Twenty-eight isolates were PVL gene positive (28/162, 17.3%). The most prevalent PVL-positive clone was ST59-IVa-t437. Comparing with HA-MRSA, CA-MRSA had a lower probability of ST5 (9.1% vs 67.1%, P=0.000) but a higher probability of ST59 (63.6% vs 11.4%, P=0.000), not only that, it was more likely to carrying PVL-positive gene (36.4% vs 14.3%, P=0.028). In summary, the molecular types of MRSA were getting complex over time. ST5-II-t311 was the predominant clone of MRSA isolate with a downward incidence from 2014 to 2018. ST59 MRSA strains, which is thought community related strain are spreading into hospitals and has an upward incidence from 2014 to 2018.
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Staphylococcus aureus Resistente a Meticilina , Epidemiología Molecular , Tipificación de Secuencias Multilocus , Infecciones Estafilocócicas , Staphylococcus aureus Resistente a Meticilina/genética , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Staphylococcus aureus Resistente a Meticilina/aislamiento & purificación , Infecciones Estafilocócicas/epidemiología , Infecciones Estafilocócicas/microbiología , China/epidemiología , Humanos , Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , Hospitales , Pruebas de Sensibilidad Microbiana , Toxinas Bacterianas/genética , Leucocidinas/genética , Antibacterianos/farmacología , Exotoxinas/genéticaRESUMEN
PURPOSE: To analyze the clinical features and risk factors of tigecycline-associated hypofibrinogenaemia and study whether cefoperazone/sulbactam combined with tigecycline aggravates coagulopathy or hypofibrinogenaemia. METHODS: A retrospective case-control study of patients with severe infection who were treated with tigecycline was conducted. Patients were assigned to the hypofibrinogenaemia group (< 2.0 g/L) and normal fibrinogen (normal) group (≥ 2.0 g/L) to assess the clinical features of patients with tigecycline-associated hypofibrinogenaemia. The traits of patients treated with cefoperazone/sulbactam in the hypofibrinogenaemia group were also analyzed. RESULTS: In total, 127 patients were enrolled in the study, including 71 patients with hypofibrinogenaemia and 56 patients with normal fibrinogen levels. Hypofibrinogenaemia developed at a median of 6 (4-8) days after tigecycline treatment, and the fibrinogen level returned to normal at a median of 3 (3-5) days after tigecycline discontinuation. In the multivariate analysis, intra-abdominal infection (p = 0.005), fibrinogen level at tigecycline initiation (p < 0.001), maintenance dose (p = 0.039), and treatment duration (p = 0.002) were found to be related to hypofibrinogenaemia. Treatment with cefoperazone/sulbactam was not associated with hypofibrinogenaemia (p = 0.681), but patients treated with cefoperazone/sulbactam had a higher incidence of coagulopathy (p = 0.009) and needed more blood products (p = 0.003) than those treated without cefoperazone/sulbactam. CONCLUSION: Tigecycline-associated hypofibrinogenaemia often developed on the 6th (4th-8th) day of tigecycline use and was associated with intra-abdominal infection, fibrinogen level at tigecycline initiation, maintenance dose, and treatment duration of tigecycline but not cefoperazone/sulbactam.
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Afibrinogenemia/inducido químicamente , Antibacterianos/efectos adversos , Tigeciclina/efectos adversos , Adulto , Afibrinogenemia/sangre , Afibrinogenemia/epidemiología , Anciano , Anciano de 80 o más Años , Infecciones Bacterianas/sangre , Infecciones Bacterianas/tratamiento farmacológico , Infecciones Bacterianas/epidemiología , Pruebas de Coagulación Sanguínea , Estudios de Casos y Controles , Cefoperazona/uso terapéutico , Enfermedad Crítica , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Sulbactam/uso terapéuticoRESUMEN
Female-released chemical signals are crucial clues for mate-searching males to locate and gain sexual receptivity of conspecific females. Abundant behavioral evidence indicates that female spiders release sex pheromones to guide mate-searching behavior of conspecific mature males. However, the chemical nature of spider pheromones is poorly understood. Females of the funnel-web spider, Allagelena difficilis, employ sit-and-wait tactics for mating. Field observations indicate that males leave their retreats to search for potential mates during the breeding season. Therefore, we investigated whether virgin females release a sex attractant to conspecific males and then explored the chemical nature of the female pheromone. Four fatty acids extracted from the female bodies (palmitic acid, linoleic acid, cis-vaccenic acid and stearic acid) constitute a multiple-component sex attractant to conspecific males in A. difficilis. Unexpectedly, mated females also produce the same fatty acids, but at trace levels. Two-choice experiments showed that males were significantly attracted by the blend of the four fatty acids in appropriate concentrations while avoiding the blend consisting of the same acids at very low concentrations, suggesting that mate-searching males are able to discriminate virgin females from mated females by the quantities of female-specific fatty acids in the funnel-web spider A. difficilis.
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Odorantes/análisis , Atractivos Sexuales/farmacología , Conducta Sexual Animal/efectos de los fármacos , Arañas/efectos de los fármacos , Animales , Femenino , Masculino , Atractivos Sexuales/química , Atractivos Sexuales/metabolismo , Arañas/metabolismo , VolatilizaciónRESUMEN
OBJECTIVE: To explore the effects of calcium pump inhibitor thapsigargin (TG) on intracellular Ca2+ and the expression of caspase-3 protein in mouse lung fibroblast. METHODS: Mice lung fibroblast cells were divided into three groups: the blank control group,transforming growth factor-ß1 (TGF-ß1) group and TG treated group. The cells were induced by 5 ng/mL TGF-ß1 for 24 h in TGF-ß1 group and TG group,4 µmol/L TG was added in TG group for 24 h. After 48 h,the cells were collected,and the cell structure was observed by transmission electron microscope,intracellular Ca2+ level was detected with laser confocal microscope,the protein expression of caspase-3 was examined using immunohistochemistry method. RESULTS: Transmission electron microscopy showed that the cells in the blank control group had obvious nucleolus,complete organelles and less apoptosis. In TGF-ß1 group,the cell morphology was intact,chromatin was evenly distributed,and no apoptotic cells were found. In TG group,there were a large number of apoptosis of fibroblasts,chromatin clumps in nuclei and a small amount of collagen fibers. The level of Ca2+ in TGF-ß1 group was significantly lower than that in control group (P<0.05),and which in TG group was significantly higher (P<0.05 ). The protein expression of caspase-3 in TGF-ß1 group were significantly lower than that in blank control group (P<0.05),which in TG group increased obviously (P<0.05). CONCLUSION: TG could cause intracellular calcium dysregulation in mouse lung fibroblasts,increase caspase-3 protein expression and promote cell apoptosis.
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Caspasa 3/metabolismo , Fibroblastos/efectos de los fármacos , Tapsigargina/farmacología , Animales , Apoptosis , Calcio/metabolismo , Células Cultivadas , Pulmón/citología , Ratones , ARN Mensajero , Factor de Crecimiento Transformador beta1/farmacologíaRESUMEN
We selected 42 early-stage primary biliary cirrhosis (PBC) patients and 30 healthy controls (HC). Metagenomic sequencing of the 16S rRNA gene was used to characterize the fecal microbiome. UPLC-MS/MS assaying of small molecules was used to characterize the metabolomes of the serum, urine and feces. Liquid chip assaying of serum cytokines was used to characterize the immune profiles. The gut of PBC patients were depleted of some potentially beneficial bacteria, such as Acidobacteria, Lachnobacterium sp., Bacteroides eggerthii and Ruminococcus bromii, but were enriched in some bacterial taxa containing opportunistic pathogens, such as γ-Proteobacteria, Enterobacteriaceae, Neisseriaceae, Spirochaetaceae, Veillonella, Streptococcus, Klebsiella, Actinobacillus pleuropneumoniae, Anaeroglobus geminatus, Enterobacter asburiae, Haemophilus parainfluenzae, Megasphaera micronuciformis and Paraprevotella clara. Several altered gut bacterial taxa exhibited potential interactions with PBC through their associations with altered metabolism, immunity and liver function indicators, such as those of Klebsiella with IL-2A and Neisseriaceae with urinary indoleacrylate. Many gut bacteria, such as some members of Bacteroides, were altered in their associations with the immunity and metabolism of PBC patients, although their relative abundances were unchanged. Consequently, the gut microbiome is altered and may be critical for the onset or development of PBC by interacting with metabolism and immunity.
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Bacterias/aislamiento & purificación , Microbioma Gastrointestinal , Tracto Gastrointestinal/microbiología , Cirrosis Hepática Biliar/inmunología , Bacterias/clasificación , Bacterias/genética , Heces/microbiología , Femenino , Tracto Gastrointestinal/inmunología , Tracto Gastrointestinal/metabolismo , Humanos , Cirrosis Hepática Biliar/metabolismo , Cirrosis Hepática Biliar/microbiología , Masculino , Metagenómica , Persona de Mediana EdadRESUMEN
OBJECTIVE: To observe the effects of different concentration of 17P-estradiol (17p-E2) on the expression of Caveolin-1 and type 11 collagen in the mouse lung fibroblast stimulated by SiO2. METHODS: Fibroblast cells were devided into five groups: blank control group, Si02 (100 mg/L) group and SiOz (100 mg/L)+ different concentration of 17beta-E2 (10(-8),10(-6),10(-6) mol/L) groups. After treated with different concentration of 17beta-E2, for 48 h, the cells were collected, then the expression of Caveolin-1 and of type III collagen were examined with immunohistochemistry method. RESULTS: Compared with the blank control group, the expression of Caveolin-1 in mouse lung fibroblasts treated by SiO2 significantly decreased (P<0.05), While which in the SiO2 +17P-E2 group significantly increased as 17beta-E2 dose increased (P<0.05); There were significantly different in the expression of type III collagen among different groups (P<0.05), which in SiO2 group were evidently higher than that in the blank control group, while which in 17p-E2 groups decreased significantly, when compared with SiO2 group (P< 0.05); 17beta-E2 increased the expression of Caveolin-1 and decreased the expression of type 1f collagen in the dose dependent manner. Correlation analysis showed that 17p-E2 was positive correlated with the expression of Caveolin-1 (r=0.926, P<0.05), and negative correlated with the express of type Ill collagen (r = -0.914, P<0.05), and the expression of Caveolin-1 and the expression of type III collagen was negatively correlation (r = -0.887, P<0.05). CONCLUSION: 17beta-E2 may inhibit the expression of type III collagen by up-regulating the expression of Caveolin-1 in mouse lung fibroblast cell to play a role in the resistance of the lung fibrosis.
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Caveolina 1/metabolismo , Colágeno Tipo III/metabolismo , Estradiol/farmacología , Fibroblastos/efectos de los fármacos , Animales , Células Cultivadas , Fibroblastos/metabolismo , Pulmón/citología , Ratones , Fibrosis Pulmonar , Dióxido de Silicio/farmacología , Regulación hacia ArribaRESUMEN
Eleven leptonetid species belonging to four genera collected in Jiangxi and Fujian Provinces, China are presented. Ten new species of midget cave spiders from southern China are diagnosed, described, and illustrated: Leptoneteladawu Yao & Liu, sp. nov., L.yuanhaoi Yao & Liu, sp. nov. and L.zuojiashanensis Yao & Liu, sp. nov. from Jiangxi; Longileptonetaguadunensis Yao & Liu, sp. nov., L.huboliao Yao & Liu, sp. nov., L.jiaxiani Yao & Liu, sp. nov., L.letuensis Yao & Liu, sp. nov., L.renzhouensis Yao & Liu, sp. nov., L.tianmenensis Yao & Liu, sp. nov., and Pararanamingxuani Yao & Liu, sp. nov. from Fujian. Furthermore, Falcileptonetamonodactyla (Yin, Wang & Wang, 1984) is recorded from Jiangxi province for the first time. Distributions records are given for all investigated species.
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Taxonomic notes on the Talaus species from China are provided. Two new species, T.yuyang Yao & Liu, sp. nov. and T.zhangjiangkou Yao & Liu, sp. nov. are described and illustrated, and a further three species are redescribed based on their genitalic characters: T.dulongjiang Tang, Yin, Ubick & Peng, 2008, T.niger Tang, Yin, Ubick & Peng, 2008, and T.sulcus Tang & Li, 2010. The species T.xiphosus Zhu & Ono, 2007 is considered a junior synonym of T.triangulifer Simon, 1886 based on an examination of many recently collected female and male specimens from Guangxi Province, China. Diagnoses, detailed illustrations and a map of distributional records of the six treated species of Talaus in China are provided.
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INTRODUCTION: Ceftazidime-avibactam (CAZ-AVI) is a new option to treat KPC- and OXA-48 carbapenem-resistant Klebsiella pneumoniae (CRKP) infections. However, clinical evidence is limited regarding its use in treating CRKP infections, especially in solid organ transplantation (SOT) recipients. In this study, we assessed the efficacy of CAZ-AVI in treating CRKP infections in both the general population and the SOT recipients in comparison with other antibiotic regimens. METHODS: This is a single-centre retrospective cohort study of patients admitted between January 1, 2018 and June 30, 2021 with the diagnosis of CRKP infections receiving either CAZ-AVI or other regimens ≥ 72 hours and clinical outcomes were analysed. RESULTS: Of 200 patients with CRKP infections, 67 received CAZ-AVI, 133 received other regimens, and 50 were SOT recipients. In the SOT cohort, 30 patients received CAZ-AVI, and 20 received other regimens. The overall 30-day mortality was 38% in the SOT cohort. Compared with patients receiving other regimens, CAZ-AVI therapy resulted in lower 30-day mortality (23.3% vs. 60%, P = 0.014) and 90-day mortality (35.7% vs. 86.7%, P = 0.003), higher clinical cure (93.3% vs. 40%, P < 0.001) and microbiological clearance. Similar promising results of CAZ-AVI were also shown in the whole population cohort. Moreover, clinical outcomes of SOT recipients receiving CAZ-AVI were not inferior to those without SOT. CONCLUSIONS: CAZ-AVI therapy was associated with better clinical outcomes in CRKP infections in both the general population and SOT recipients. Considering the limitations of the present study, well-conducted RCTs are still warranted to confirm these findings.
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Antibacterianos , Compuestos de Azabiciclo , Ceftazidima , Combinación de Medicamentos , Infecciones por Klebsiella , Klebsiella pneumoniae , Trasplante de Órganos , Humanos , Ceftazidima/uso terapéutico , Compuestos de Azabiciclo/uso terapéutico , Masculino , Femenino , Estudios Retrospectivos , Persona de Mediana Edad , Klebsiella pneumoniae/efectos de los fármacos , Infecciones por Klebsiella/tratamiento farmacológico , Infecciones por Klebsiella/mortalidad , Infecciones por Klebsiella/microbiología , Antibacterianos/uso terapéutico , Anciano , Trasplante de Órganos/efectos adversos , Enterobacteriaceae Resistentes a los Carbapenémicos/efectos de los fármacos , Receptores de Trasplantes , Adulto , Carbapenémicos/uso terapéutico , Resultado del Tratamiento , Pruebas de Sensibilidad MicrobianaRESUMEN
Leprosy and psoriasis rarely coexist, the specific molecular mechanisms underlying their mutual exclusion have not been extensively investigated. This study aimed to reveal the underlying mechanism responsible for the mutual exclusion between psoriasis and leprosy. We obtained leprosy and psoriasis data from ArrayExpress and GEO database. Differential expression analysis was conducted separately on the leprosy and psoriasis using DEseq2. Differentially expressed genes (DEGs) with opposite expression patterns in psoriasis and leprosy were identified, which could potentially involve in their mutual exclusion. Enrichment analysis was performed on these candidate mutually exclusive genes, and a protein-protein interaction (PPI) network was constructed to identify hub genes. The expression of these hub genes was further validated in an external dataset to obtain the critical mutually exclusive genes. Additionally, immune cell infiltration in psoriasis and leprosy was analyzed using single-sample gene set enrichment analysis (ssGSEA), and the correlation between critical mutually exclusive genes and immune cells was also examined. Finally, the expression pattern of critical mutually exclusive genes was evaluated in a single-cell transcriptome dataset. We identified 1098 DEGs in the leprosy dataset and 3839 DEGs in the psoriasis dataset. 48 candidate mutually exclusive genes were identified by taking the intersection. Enrichment analysis revealed that these genes were involved in cholesterol metabolism pathways. Through PPI network analysis, we identified APOE, CYP27A1, FADS1, and SOAT1 as hub genes. APOE, CYP27A1, and SOAT1 were subsequently validated as critical mutually exclusive genes on both internal and external datasets. Analysis of immune cell infiltration indicated higher abundance of 16 immune cell types in psoriasis and leprosy compared to normal controls. The abundance of 6 immune cell types in psoriasis and leprosy positively correlated with the expression levels of APOE and CYP27A1. Single-cell data analysis demonstrated that critical mutually exclusive genes were predominantly expressed in Schwann cells and fibroblasts. This study identified APOE, CYP27A1, and SOAT1 as critical mutually exclusive genes. Cholesterol metabolism pathway illustrated the possible mechanism of the inverse association of psoriasis and leprosy. The findings of this study provide a basis for identifying mechanisms and therapeutic targets for psoriasis.
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Artrogriposis , Lepra , Psoriasis , Humanos , Lepra/genética , Psoriasis/genética , Colesterol , Apolipoproteínas E , Biología ComputacionalRESUMEN
Collections of thomisid spiders by amateur and professional arachnologists in China have led to the discovery of some interesting crab spiders (Thomisidae). Two new species in two genera of thomisid spiders are described and illustrated with photographs and SEMs: Phartaxizang Liu & Yao, sp. nov. (â) and Stephanopisqiong Liu & Yao, sp. nov. (â). The previously unknown males of Borboropactuslongidens Tang & Li, 2010 and Stephanopisxiangzhouica Liu, 2022 were also collected and are described for the first time. The genus Borboropactus Simon, 1884 is reported for the first time from Vietnam. The new Stephanopis species is also recorded for only the second time from the Asian mainland. Distributions of all these species are mapped.
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Two species assigned to Massuria Thorell, 1887 are reviewed. The female of Massuriabandian Tang & Li, 2010 is described for the first time from Jianfengling National Natural Reserve, Hainan Province, China. The species Diaeasimplex Xu, Han & Li, 2008 is described as a synonym of Massuriabellula Xu, Han & Li, 2008 based on female and male specimens from Guangdong Province, China. Massuriaminsp. nov. described as a new species (female, Fujian Province, China). Detailed illustrations and a distribution map are provided for these three species of Massuria.
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Three new Otacilia species were collected from Jiangxi Provinces, China during a survey of the spider fauna of the region: Otaciliaanfu Liu, sp. nov. (ââ), O.guanshan Liu, sp. nov. (ââ), and O.mingyueshan Liu, sp. nov. (ââ). All species are described and illustrated with photographs and SEM micrographs, and their distribution is also mapped.
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Background: Posttransplant lymphoproliferative disorders (PTLDs) are uncommon but serious complications in patients following solid organ transplantation. Primary Epstein-Barr virus (EBV) infection is a risk factor for the development of PTLD, especially early-onset PTLD, in EBV-negative recipients. To date, however, there are no specific guidelines on the threshold of EBV-DNA load for therapeutic intervention, the source for measurement (e.g., blood, bronchoalveolar fluid), or the use of antiviral agents as prophylaxis for early PTLD prevention in EBV-mismatched patients. Methods: The present study describes a 56-year-old male lung transplant recipient diagnosed with EBV-associated PTLD. Results: This patient had a history of invasive fungal disease and Mucor and Aspergillus fumigatus infections in the early post-transplant period, necessitating antifungal therapy throughout the course of the disease. The patient was EBV-positive 15 days after transplantation, with lung CT showing multiple bilateral nodules of varying sizes beginning 98 days after transplantation. A lung biopsy showed PTLD, and next-generation sequencing (NGS) revealed EBV. This patient, however, did not receive any antiviral therapy for early PTLD prevention or any PTLD-related treatment. He died 204 days after lung transplantation. Conclusion: The present study describes a lung transplant recipient who developed EBV-associated PTLD, a non-negligible disease, after solid organ transplantation. Monitoring EBV-DNA load is important, as a sudden increase may be a sensitive indicator of PTLD. An earlier diagnosis may increase the likelihood of successful treatment.
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Infecciones por Virus de Epstein-Barr , Trasplante de Pulmón , Trastornos Linfoproliferativos , Masculino , Humanos , Persona de Mediana Edad , Infecciones por Virus de Epstein-Barr/complicaciones , Infecciones por Virus de Epstein-Barr/diagnóstico , Infecciones por Virus de Epstein-Barr/tratamiento farmacológico , Herpesvirus Humano 4/genética , Receptores de Trasplantes , Trasplante de Pulmón/efectos adversos , Trastornos Linfoproliferativos/diagnóstico , Trastornos Linfoproliferativos/tratamiento farmacológico , Trastornos Linfoproliferativos/etiología , Pulmón/diagnóstico por imagen , ADN/uso terapéuticoRESUMEN
A comprehensive surveillance system for bacterial resistance in tertiary hospitals has been established in China that involves tertiary hospitals in distinct regions nationwide, enabling the collection of a large amount of antimicrobial surveillance data. Antimicrobial resistance in China has become a serious healthcare problem, with high resistance rates of most common bacteria to clinically important antimicrobial agents. Methicillin-resistant S. aureus, ESBL-producing Enterobacteriaceae and carbapenem-resistant Acinetobacter baumannii represent more than 50% of microbial isolates. Additionally, bacterial resistance to fluoroquinolones, macrolides and third-generation cephalosporins is of serious concern. The molecular epidemiology and resistance mechanisms of the antimicrobial strains in China exhibited regional specificity, as well as the influence of dissemination of international clonal complexes. The molecular characteristics of MRSA, ESBL- and carbapenemase-producing Enterobacteriaceae, and macrolide-resistant gram-positive Streptococci in China were significantly different from those in other countries and regions, while S. pneumoniae serotypes appear to have been affected by the global spread of prevalent clones in other parts of the world. Moreover, important antimicrobial resistant bacteria such as community-acquired-MRSA, multidrug-resistant P. aeruginosa and extensive-resistant A. baumannii, and the antimicrobial resistance in primary healthcare and outpatient setting should be intensely monitored and investigated in the future.
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Antibacterianos/uso terapéutico , Infecciones Bacterianas/epidemiología , Farmacorresistencia Bacteriana/fisiología , Farmacoepidemiología , Antibacterianos/metabolismo , Antibacterianos/farmacología , Infecciones Bacterianas/tratamiento farmacológico , China/epidemiología , Farmacorresistencia Bacteriana Múltiple/genética , Farmacorresistencia Bacteriana Múltiple/fisiología , Humanos , Pruebas de Sensibilidad MicrobianaRESUMEN
A list of 26 gnaphosid species belonging to 14 genera collected in Jiangxi Province, China, is provided. Three new species of ground spiders from Jiangxi Province of China are diagnosed, described, and illustrated: Haplodrassusyinae Liu, sp. nov. (ââ), Hitobiaxiaoxi Liu, sp. nov. (â), and Zelotesdingnan Liu, sp. nov. (ââ). Haplodrassusyinae Liu, sp. nov. was previously erroneously recorded in Jiangxi Province as H.montanusYin et al., 2012.
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Five new species of salticids were collected from China: Synagelidesemangou Liu, sp. nov. (â, â) from Gansu province, and S.jinding Liu, sp. nov. (â), S.serratus Liu, sp. nov. (â, â), S.shuqiang Liu, sp. nov. (â), and S.triangulatus Liu, sp. nov. (â) from Jiangxi Province. All species are described and illustrated with photographs and SEM micrographs, and their distributions are also mapped.
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Two new species of Spinirta Jin & Zhang, 2020 (Araneae: Corinnidae) from Jiangxi Province, China are described here: S.sanxiandian sp. nov. (ââ) and S.sishuishan sp. nov. (â). Detailed descriptions and photographs of the new species are provided.
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A list of 34 thomisid species belonging to 21 genera collected in Jangxi Province of China is provided. Five new species are described: Angaeusxieluae Liu, sp. nov. (ââ), Lysitelessubspirellus Liu, sp. nov. (â), Oxytatemucunica Liu, sp. nov. (â), Phartalingxiufengica Liu, sp. nov. (â), Stephanopisxiangzhouica Liu, sp. nov. (â). A new combination is proposed: Ebelingiaforcipata (Song & Zhu, 1993) comb. nov. (ex. Ebrechtella Dahl, 1907). Previously unknown females of E.forcipata (Song & Zhu, 1993), Oxytatebicornis Liu, Liu & Xu, 2017, and Xysticuslesserti Schenkel, 1963 are described for the first time. Stephanopis O Pickard-Cambridge, 1869, a genus previously known from Australasia and South America, is recorded from the Asian mainland for the first time.