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Wang J, Li W, Gong X, Wang Z, Wang Y, Ling J, Jiang Z, Zhu G, Li Y. Recombination and amino acid point mutations in VP3 exhibit a synergistic effect on increased virulence of rMDPV. Virulence 2024; 15:2366874. [PMID: 38869140 DOI: 10.1080/21505594.2024.2366874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 05/24/2024] [Indexed: 06/14/2024] Open
Abstract
Recombinant Muscovy duck parvovirus (rMDPV) is a product of genetic recombination between classical Muscovy duck parvovirus (MDPV) and goose parvovirus (GPV). The recombination event took place within a 1.1-kb DNA segment located in the middle of the VP3 gene, and a 187-bp sequence extending from the P9 promoter to the 5' initiation region of the Rep1 ORF. This resulted in the alteration of five amino acids within VP3. Despite these genetic changes, the precise influence of recombination and amino acid mutations on the pathogenicity of rMDPV remains ambiguous. In this study, based on the rMDPV strain ZW and the classical MDPV strain YY, three chimeric viruses (rZW-mP9, rZW-mPR187, and rYY-rVP3) and the five amino acid mutations-introduced mutants (rZW-g5aa and rYY-5aa(ZW)) were generated using reverse genetic technology. When compared to the parental virus rZW, rZW-g5aa exhibited a prolonged mean death time (MDT) and a decreased median lethal dose (ELD50) in embryonated duck eggs. In contrast, rYY-5aa(ZW) did not display significant differences in MDT and ELD50 compared to rYY. In 2-day-old Muscovy ducklings, infection with rZW-g5aa and rYY-5aa(ZW) resulted in mortality rates of only 20% and 10%, respectively, while infections with the three chimeric viruses (rZW-mP9, rZW-mPR187, rYY-rVP3) and rZW still led to 100% mortality. Notably, rYY-rVP3, containing the VP3 region from strain ZW, exhibited 50% mortality in 6-day-old Muscovy ducklings and demonstrated significant horizontal transmission. Collectively, our findings indicate that recombination and consequent amino acid changes in VP3 have a synergistic impact on the heightened virulence of rMDPV in Muscovy ducklings.
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Antonello RM, Marangoni D, Ducci F, Barbiero A, Manciulli T, Graziani L, Di Lauria N, Menicacci L, Paci L, Sordi B, Zammarchi L, Morettini A, Tomassetti S, Rossolini GM, Bartoloni A, Spinicci M. Antiviral combination regimens as rescue therapy in immunocompromised hosts with persistent COVID-19. J Chemother 2024:1-5. [PMID: 38873733 DOI: 10.1080/1120009x.2024.2367935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 06/09/2024] [Indexed: 06/15/2024]
Abstract
The management of severe/prolonged SARS-CoV-2 infections in immunocompromised hosts is still challenging. We describe nine patients with hematologic malignancies with a history of unsuccessful SARS-CoV-2 treatment receiving antiviral combination treatment for persistent infection at a tertiary hospital in central Italy (University Hospital of Careggi, Florence). Combination treatments consisted of nirmatrelvir/ritonavir plus molnupiravir (n = 4), nirmatrelvir/ritonavir plus remdesivir (n = 4) or remdesivir plus molnupiravir (n = 1) for 10 days, in some cases associated with sotrovimab. Combinations were generally well tolerated. One patient obtained viral clearance but died due to the underlying disease. In eight cases, clinical and virological success was confirmed by radiological follow-up. Antivirals combination is likely to become a mainstay in the future management of COVID-19 among immunocompromised patients, but knowledge in this field is still very limited and prospective studies on larger cohorts are urgently warranted.
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Chien CY, Tsai SL, Huang CH, Wang MF, Lin CC, Chen CB, Tsai LH, Tseng HJ, Huang YB, Ng CJ. Effectiveness of Blended Versus Traditional Refresher Training for Cardiopulmonary Resuscitation: Prospective Observational Study. JMIR MEDICAL EDUCATION 2024; 10:e52230. [PMID: 38683663 DOI: 10.2196/52230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/08/2023] [Accepted: 03/31/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Generally, cardiopulmonary resuscitation (CPR) skills decline substantially over time. By combining web-based self-regulated learning with hands-on practice, blended training can be a time- and resource-efficient approach enabling individuals to acquire or refresh CPR skills at their convenience. However, few studies have evaluated the effectiveness of blended CPR refresher training compared with that of the traditional method. OBJECTIVE This study investigated and compared the effectiveness of traditional and blended CPR training through 6-month and 12-month refresher sessions with CPR ability indicators. METHODS This study recruited participants aged ≥18 years from the Automated External Defibrillator Donation Project. The participants were divided into 4 groups based on the format of the CPR training and refresher training received: (1) initial traditional training (a 30-minute instructor-led, hands-on session) and 6-month traditional refresher training (Traditional6 group), (2) initial traditional training and 6-month blended refresher training (an 18-minute e-learning module; Mixed6 group), (3) initial traditional training and 12-month blended refresher training (Mixed12 group), and (4) initial blended training and 6-month blended refresher training (Blended6 group). CPR knowledge and performance were evaluated immediately after initial training. For each group, following initial training but before refresher training, a learning effectiveness assessment was conducted at 12 and 24 months. CPR knowledge was assessed using a written test with 15 multiple-choice questions, and CPR performance was assessed through an examiner-rated skill test and objectively through manikin feedback. A generalized estimating equation model was used to analyze changes in CPR ability indicators. RESULTS This study recruited 1163 participants (mean age 41.82, SD 11.6 years; n=725, 62.3% female), with 332 (28.5%), 270 (23.2%), 258 (22.2%), and 303 (26.1%) participants in the Mixed6, Traditional6, Mixed12, and Blended6 groups, respectively. No significant between-group difference was observed in knowledge acquisition after initial training (P=.23). All groups met the criteria for high-quality CPR skills (ie, average compression depth: 5-6 cm; average compression rate: 100-120 beats/min; chest recoil rate: >80%); however, a higher proportion (98/303, 32.3%) of participants receiving blended training initially demonstrated high-quality CPR skills. At 12 and 24 months, CPR skills had declined in all the groups, but the decline was significantly higher in the Mixed12 group, whereas the differences were not significant between the other groups. This finding indicates that frequent retraining can maintain high-quality CPR skills and that blended refresher training is as effective as traditional refresher training. CONCLUSIONS Our findings indicate that 6-month refresher training sessions for CPR are more effective for maintaining high-quality CPR skills, and that as refreshers, self-learning e-modules are as effective as instructor-led sessions. Although the blended learning approach is cost and resource effective, factors such as participant demographics, training environment, and level of engagement must be considered to maximize the potential of this approach. TRIAL REGISTRATION IGOGO NCT05659108; https://www.cgmh-igogo.tw.
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Huguet JM, Ferrer-Barceló L, Suárez P, Barcelo-Cerda S, Sempere J, Saracino IM, Fiorini G, Vaira D, Pérez-Aísa Á, Jonaitis L, Tepes B, Castro-Fernandez M, Pabón-Carrasco M, Keco-Huerga A, Voynovan I, Lucendo AJ, Lanas Á, Martínez-Domínguez SJ, Alfaro Almajano E, Rodrigo L, Vologzanina L, Bordin DS, Gasbarrini A, Babayeva G, Lerang F, Leja M, Kupčinskas J, Rokkas T, Marcos-Pinto R, Meštrović A, Gridnyev O, Phull PS, Smith SM, Boltin D, Buzás GM, Kral J, Şimşek H, Matysiak-Budnik T, Milivojevic V, Marlicz W, Venerito M, Boyanova L, Doulberis M, Capelle LG, Cano-Català A, Moreira L, Nyssen OP, Mégraud F, O'Morain C, Gisbert JP. Role of compliance in Helicobacter pylori eradication treatment: Results of the European Registry on H. pylori management. United European Gastroenterol J 2024. [PMID: 38685613 DOI: 10.1002/ueg2.12569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 03/04/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Adherence to Helicobacter pylori (H. pylori) eradication treatment is a cornerstone for achieving adequate treatment efficacy. OBJECTIVE To determine which factors influence compliance with treatment. METHODS A systematic prospective non-interventional registry (Hp-EuReg) of the clinical practice of European gastroenterologists. Compliance was considered adequate if ≥90% drug intake. Data were collected until September 2021 using the AEG-REDCap e-CRF and were subjected to quality control. Modified intention-to-treat analyses were performed. Multivariate analysis carried out the factors associated with the effectiveness of treatment and compliance. RESULTS Compliance was inadequate in 646 (1.7%) of 38,698 patients. The non-compliance rate was higher in patients prescribed longer regimens (10-, 14-days) and rescue treatments, patients with uninvestigated dyspepsia/functional dyspepsia, and patients reporting adverse effects. Prevalence of non-adherence was lower for first-line treatment than for rescue treatment (1.5% vs. 2.2%; p < 0.001). Differences in non-adherence in the three most frequent first-line treatments were shown: 1.1% with proton pump inhibitor + clarithromycin + amoxicillin; 2.3% with proton pump inhibitor clarithromycin amoxicillin metronidazole; and 1.8% with bismuth quadruple therapy. These treatments were significantly more effective in compliant than in non-compliant patients: 86% versus 44%, 90% versus 71%, and 93% versus 64%, respectively (p < 0.001). In the multivariate analysis, the variable most significantly associated with higher effectiveness was adequate compliance (odds ratio, 6.3 [95%CI, 5.2-7.7]; p < 0.001). CONCLUSIONS Compliance with Helicobacter pylori eradication treatment is very good. Factors associated with poor compliance include uninvestigated/functional dyspepsia, rescue-treatment, prolonged treatment regimens, the presence of adverse events, and the use of non-bismuth sequential and concomitant treatment. Adequate treatment compliance was the variable most closely associated with successful eradication.
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Cornell S, Brander RW, Roberts A, Koon W, Peden AE, Lawes JC. 'I actually thought that I was going to die': Lessons on the rip current hazard from survivor experiences. Health Promot J Austr 2024; 35:551-564. [PMID: 37549041 DOI: 10.1002/hpja.785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/04/2023] [Accepted: 07/26/2023] [Indexed: 08/09/2023] Open
Abstract
BACKGROUND Rip currents are strong, narrow, fast-flowing currents of water that occur on many beaches and in Australia contributing to 26 drowning deaths and several thousand lifeguard/lifesaver rescues each year. Educating the public about the rip current hazard is a primary focus of beach safety practitioners, but there has been a lack of qualitative research exploring the firsthand experiences of being caught in a rip current to assist in this regard. The aim of this study was to analyse interviews of rip current survivors to understand more about how people react when unintentionally caught in a rip current in order to help guide future public education to mitigate rip current drowning. METHODS Semi-structured interviews were conducted with 56 individuals (primarily Australian-born) about their experience of being caught in a rip current. Interviewees were recruited via an online survey and varied in age and self-reported swimming ability. RESULTS Thematic analysis revealed three key temporal elements to the rip current experience: Before the Rip in which lack of awareness and knowledge, complacency, over-confidence, and attitude were prevalent themes; During the Rip which identified panic and temporary inhibition of decision-making, physical response, prior experience, and relationships with other beach users as themes; and After the Rip where post-rip effects and rip safety messaging and education were key themes. The importance of experiential immersion was a prevalent thread throughout all phases of the thematic analysis. DISCUSSION Our research shows that being caught in a rip current can be an intense and traumatic experience and that lessons learned from survivors have significant implications for improving existing and future rip current education efforts. In this regard, we provide several recommendations based on evidence-based insights gained from our interviews including the development of immersive rip current experience using virtual reality. SO WHAT Despite the prevalence of rip currents causing drowning deaths and rescues, there has been a lack of qualitative research on firsthand experiences to aid in public education. These interviews emphasise the intense and traumatic nature of being caught in a rip current, underscoring the need for improved rip current education to aid in prevention of this, often harrowing, experience.
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Ravaut G, Carneiro A, Mounier C. Exploring the impacts of ketogenic diet on reversible hepatic steatosis: initial analysis in male mice. Front Nutr 2024; 11:1290540. [PMID: 38577162 PMCID: PMC10991688 DOI: 10.3389/fnut.2024.1290540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 02/27/2024] [Indexed: 04/06/2024] Open
Abstract
Metabolic dysfunction-associated fatty liver disease (MAFLD) is the most common chronic liver disease. Ketogenic diet (KD), a diet with very low intake in carbohydrates, gained popularity as a weight-loss approach. However, in mice models, it has been reported that an excess exposition of dietary fat induces hepatic insulin resistance and steatosis. However, data published is inconsistent. Herein, we investigated in a mouse model, the metabolic effects of KD and its contribution to the pathogenesis of NALFD. Mice were exposed to KD or CHOW diet for 12 weeks while a third group was exposed to KD for also 12 weeks and then switched to CHOW diet for 4 weeks to determine if we can rescue the phenotype. We evaluated the effects of diet treatments on fat distribution, glucose, and insulin homeostasis as well as hepatic steatosis. Mice fed with KD developed glucose intolerance but not insulin resistance accompanied by an increase of inflammation. KD-fed mice showed an increase of fat accumulation in white adipose tissue and liver. This effect could be explained by an increase in fat uptake by the liver with no changes of catabolism leading to MAFLD. Interestingly, we were able to rescue the phenotype by switching KD-fed mice for 4 weeks on a CHOW diet. Our studies demonstrate that even if mice develop hepatic steatosis and glucose intolerance after 12 weeks of KD, they do not develop insulin resistance and more importantly, the phenotype can be reversed by switching the mice from a KD to a CHOW.
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Van Tilburg C, Paal P, Strapazzon G, Grissom CK, Haegeli P, Hölzl N, McIntosh S, Radwin M, Smith WWR, Thomas S, Tremper B, Weber D, Wheeler AR, Zafren K, Brugger H. Wilderness Medical Society Clinical Practice Guidelines for Prevention and Management of Avalanche and Nonavalanche Snow Burial Accidents: 2024 Update. Wilderness Environ Med 2024; 35:20S-44S. [PMID: 37945433 DOI: 10.1016/j.wem.2023.05.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 04/03/2023] [Accepted: 05/10/2023] [Indexed: 11/12/2023]
Abstract
To provide guidance to the general public, clinicians, and avalanche professionals about best practices, the Wilderness Medical Society convened an expert panel to revise the evidence-based guidelines for the prevention, rescue, and resuscitation of avalanche and nonavalanche snow burial victims. The original panel authored the Wilderness Medical Society Practice Guidelines for Prevention and Management of Avalanche and Nonavalanche Snow Burial Accidents in 2017. A second panel was convened to update these guidelines and make recommendations based on quality of supporting evidence.
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Chatterjee S, Ganguly A, Bhattacharyya D. Reprogramming nucleolar size by genetic perturbation of the extranuclear Rab GTPases Ypt6 and Ypt32. FEBS Lett 2024; 598:283-301. [PMID: 37994551 DOI: 10.1002/1873-3468.14776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 11/24/2023]
Abstract
Reprogramming organelle size has been proposed as a potential therapeutic approach. However, there have been few reports of nucleolar size reprogramming. We addressed this question in Saccharomyces cerevisiae by studying mutants having opposite effects on the nucleolar size. Mutations in genes involved in nuclear functions (KAR3, CIN8, and PRP45) led to enlarged nuclei/nucleoli, whereas mutations in secretory pathway family genes, namely the Rab-GTPases YPT6 and YPT32, reduced nucleolar size. When combined with mutations leading to enlarged nuclei/nucleoli, the YPT6 or YPT32 mutants can effectively reprogram the nuclear/nucleolar size almost back to normal. Our results further indicate that null mutation of YPT6 causes secretory stress that indirectly influences nuclear localization of Maf1, the negative regulator of RNA Polymerase III, which might reduce the nucleolar size by inhibiting nucleolar transcript enrichment.
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Liu R, Yan Q, Hu Y, Liu X. Calcium Folate for Reducing the Side Effects of Low-dose Methotrexate in Rheumatoid Arthritis: A Case Report. Curr Drug Saf 2024; 19:138-141. [PMID: 37309770 DOI: 10.2174/1574886318666230612101111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 04/18/2023] [Accepted: 05/01/2023] [Indexed: 06/14/2023]
Abstract
INTRODUCTION We reported a patient with rheumatoid arthritis who received chronic methotrexate (MTX) therapy and experienced several adverse reactions like hemocytopenia and renal impairment. Under the monitoring of the therapeutic drug concentration, calcium folate and other measures were used to accelerate methotrexate excretion and eliminate adverse reactions. CASE PRESENTATION A 66-year-old man with rheumatoid arthritis received MTX and developed adverse effects of bone marrow suppression, like pancytopenia. He had a black stool, and he tested positive for occult blood, which was considered gastrointestinal bleeding. The blood MTX concentration reached 4.07 μmol/L, and leucovorin was administered to rescue the patient's life. Besides, hydration and alkaline urine were applied to quickly clear methotrexate inside the body. CONCLUSION Low-dose MTX has fewer adverse reactions but may cause bone marrow suppression- related side effects. Blood concentration monitoring can be used to guide the rescue of MTX poisoning.
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Liu R, Xiao L, Hu Y, Yan Q, Liu X. Rescue strategies for valproic acid overdose poisoning: Case series and literature review. Clin Case Rep 2024; 12:e8367. [PMID: 38161627 PMCID: PMC10753133 DOI: 10.1002/ccr3.8367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 11/25/2023] [Accepted: 12/14/2023] [Indexed: 01/03/2024] Open
Abstract
Valproic acid (VPA) is a wide-ranging anti-epileptic medication that primarily affects bipolar disorder, mania, and migraine. The leading causes of mortality associated with acute poisoning from VPA are nervous system toxicity, drug-induced shock due to encephalopathy from hyperammonemia, as well as acute liver and kidney failure, and respiratory depression that contribute to hemodynamic instability. Treatment of acute VPA poisoning primarily involves in vitro elimination methods, including hemoperfusion (HP), hemodialysis, and hemofiltration, as well as drug remedies such as L-carnitine and meropenem. Nonetheless, there are conflicting opinions regarding drug usage. This article details the three cases of acute poisoning from VPA. The fundamental approach to treatment employs HP assisted by blood concentration monitoring to alleviate shock and stabilize hemodynamics. This investigation presents guidance for the treatment and management of acute poisoning with VPA in clinical settings.
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Mullineaux E, Pawson C. Trends in Admissions and Outcomes at a British Wildlife Rehabilitation Centre over a Ten-Year Period (2012-2022). Animals (Basel) 2023; 14:86. [PMID: 38200817 PMCID: PMC10778305 DOI: 10.3390/ani14010086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Millions of animals pass through wildlife rehabilitation centres (WRCs) globally each year, some dying in captivity, others euthanised, and some released into the wild. Those caring for these animals are generally well-intentioned, but skills, knowledge, and resources may be limited, potentially compromising animal welfare. WRC databases provide an opportunity to provide an evidence base for treatment and conservation efforts. 42,841 records of animals admitted over a 10-year period to a British WRC were analysed. More birds (69.16%) were admitted than mammals (30.48%) and reptiles and amphibians (0.36%). Most admissions were in the summer (48.8%) and spring (26.0%) months. A total of 9 of the 196 species seen made up 57% of admissions, and hedgehogs were the most common species admitted (14% of all admissions and 20% of mammals). Juvenile animals (35.5%) were admitted more frequently than 'orphans' (26.0%) or adults (26.4%). 'Orphaned' was also the predominant reason for admission (28.3%), followed by 'injured' (25.5%). 42.6% of animals were eventually released back to the wild, 19.2% died in captivity, and 37.2% were euthanised; 1% of outcomes were unknown. The prognosis was better for orphaned animals than for those admitted because of injury. Unexpected natural deaths in captivity were found to decline over the period of study, consistent with improved early triage. These findings can be used to focus veterinary and WRC training and seasonal resources on the species and case types most likely to be successfully rehabilitated and released. The findings also have the potential to contribute to our understanding of anthropogenic impacts, historical and regional variations in ecosystem health, and resultant implications for animal welfare.
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Chen J, Wang MK, Xie QX, Bing XL, Li TP, Hong XY. NDUFA8 potentially rescues Wolbachia-induced cytoplasmic incompatibility in Laodelphax striatellus. INSECT SCIENCE 2023; 30:1689-1700. [PMID: 36744754 DOI: 10.1111/1744-7917.13182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/11/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
The endosymbiont Wolbachia manipulates host reproduction by several strategies, one of the most important of which is cytoplasmic incompatibility (CI). CI can be rescued when Wolbachia-infected males mate with females infected with the same Wolbachia strain. However, the potential rescue mechanism of CI in the small brown planthopper Laodelphax striatellus is unclear. In this study, comparative transcriptome analysis was applied to explore the effect of Wolbachia on L. striatellus eggs. A total of 1387 differentially expressed genes were identified. RNA interference of 7 Wolbachia-upregulated key planthopper genes reduced egg reproduction, suggesting that Wolbachia might improve fecundity in L. striatellus by affecting these 7 genes. Suppressing the expression of another upregulated gene, NDUFA8 (encoding NADH dehydrogenase [ubiquinone] 1 α subcomplex subunit 8-like) by RNA interference significantly increased the mortality of early embryos without affecting the number of deposited eggs. Wolbachia infection upregulated the mRNA level of NDUFA8, and dsNDUFA8 treatment of Wolbachia-infected females recreated CI-like symptoms, suggesting that NDUFA8 is associated with the rescue phenotype. Because all L. striatellus populations worldwide are infected with Wolbachia, NDUFA8 is a potential pest control target.
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Reyes-Zaragoza MA, D'Agostino EN, Daniel NJ. Avalanche Education Is Associated with Increased Avalanche Safety Practices in the New Hampshire Backcountry. Wilderness Environ Med 2023; 34:457-461. [PMID: 37726194 DOI: 10.1016/j.wem.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 06/23/2023] [Accepted: 07/03/2023] [Indexed: 09/21/2023]
Abstract
INTRODUCTION Avalanche risk can be mitigated by adhering to certain safety practices. Previous studies of these practices have focused on western United States and European cohorts. We conducted a survey of backcountry users in the White Mountains of New Hampshire to determine local adherence to 5 previously studied avalanche safety practices. We assessed whether participants were carrying transceiver, probe, and shovel (TPS); had formal avalanche education; had awareness of the day's avalanche danger level; had a route plan; and were traveling in a group. METHODS Backcountry users in the White Mountains were directed to an online survey from December 2020 to June 2021. The survey was completed individually and queried demographics and avalanche safety practices. RESULTS A total of 133 users participated. Not all surveyed participants answered all questions. Avalanche training was reported by 87% of users, 86% checked the avalanche forecast prior to recreating, 93% had a travel plan, 87% traveled in a group, and 59% carried TPS. All 3 items were carried by all group members only 48% of the time. Only 28% of users met all 5 safety practices. CONCLUSIONS White Mountains backcountry users are less likely to meet avalanche safety practices than users in previous studies. There is an association between meeting these defined safety practices and formal avalanche education.
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Candel FJ, Salavert M, Estella A, Ferrer M, Ferrer R, Gamazo JJ, García-Vidal C, del Castillo JG, González-Ramallo VJ, Gordo F, Mirón-Rubio M, Pérez-Pallarés J, Pitart C, del Pozo JL, Ramírez P, Rascado P, Reyes S, Ruiz-Garbajosa P, Suberviola B, Vidal P, Zaragoza R. Ten Issues to Update in Nosocomial or Hospital-Acquired Pneumonia: An Expert Review. J Clin Med 2023; 12:6526. [PMID: 37892664 PMCID: PMC10607368 DOI: 10.3390/jcm12206526] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/07/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Nosocomial pneumonia, or hospital-acquired pneumonia (HAP), and ventilator-associated pneumonia (VAP) are important health problems worldwide, with both being associated with substantial morbidity and mortality. HAP is currently the main cause of death from nosocomial infection in critically ill patients. Although guidelines for the approach to this infection model are widely implemented in international health systems and clinical teams, information continually emerges that generates debate or requires updating in its management. This scientific manuscript, written by a multidisciplinary team of specialists, reviews the most important issues in the approach to this important infectious respiratory syndrome, and it updates various topics, such as a renewed etiological perspective for updating the use of new molecular platforms or imaging techniques, including the microbiological diagnostic stewardship in different clinical settings and using appropriate rapid techniques on invasive respiratory specimens. It also reviews both Intensive Care Unit admission criteria and those of clinical stability to discharge, as well as those of therapeutic failure and rescue treatment options. An update on antibiotic therapy in the context of bacterial multiresistance, in aerosol inhaled treatment options, oxygen therapy, or ventilatory support, is presented. It also analyzes the out-of-hospital management of nosocomial pneumonia requiring complete antibiotic therapy externally on an outpatient basis, as well as the main factors for readmission and an approach to management in the emergency department. Finally, the main strategies for prevention and prophylactic measures, many of them still controversial, on fragile and vulnerable hosts are reviewed.
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Hannon PR, Akin JW, Curry Jr TE. Exposure to a phthalate mixture disrupts ovulatory progesterone receptor signaling in human granulosa cells in vitro†. Biol Reprod 2023; 109:552-565. [PMID: 37552060 PMCID: PMC10577275 DOI: 10.1093/biolre/ioad091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/09/2023] Open
Abstract
Exposure to phthalates disrupts ovarian function. However, limited studies have investigated the effects of phthalate mixtures on ovulation, especially in women. Human granulosa cells were used to test the hypothesis that exposure to a phthalate mixture (PHTmix) disrupts progesterone (P4)/progesterone receptor (PGR) signaling, which is a crucial pathway for ovulation. In addition, progestin and cyclic adenosine 3', 5'-monophosphate (cAMP) supplementation were tested as methods to circumvent phthalate toxicity. Granulosa cells from women undergoing in vitro fertilization were acclimated in culture to regain responsiveness to human chorionic gonadotropin (hCG; clinical luteinizing hormone analogue). Granulosa cells were treated with or without hCG, and with or without PHTmix (1-500 μg/ml; dimethylsulfoxide = vehicle control) for 0.5-36 h. In the supplementation experiments, cells were treated with or without R5020 (stable progestin), and with or without 8-Br-cAMP (stable cAMP analogue). Exposure to hCG + PHTmix decreased P4 levels and mRNA levels of steroidogenic factors when compared to hCG. This was accompanied by decreased mRNA levels of PGR and downstream P4/PGR ovulatory mediators (ADAM metallopeptidase with thrombospondin type 1 motif 1 (ADAMTS1), C-X-C motif chemokine receptor 4 (CXCR4), pentraxin 3 (PTX3), and regulator of G protein signaling 2 (RGS2)) in the hCG + PHTmix groups compared to hCG. Exposure to hCG + PHTmix 500 μg/ml decreased cAMP levels and protein kinase A activity compared to hCG. Supplementation with progestin in the hCG + PHTmix 500 μg/ml group did not rescue toxicity, while supplementation with cAMP restored PGR levels and downstream P4/PGR mediator levels to hCG levels. These findings suggest that phthalate mixture exposure inhibits P4/PGR signaling in human granulosa cells via decreased steroidogenesis, cAMP levels, and protein kinase A activity. Restored P4/PGR signaling with cAMP supplementation provides a potential cellular target for intervention of phthalate-induced ovulatory dysfunction in women.
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Shigematsu H, Ando M, Kobayashi K, Yoshida G, Funaba M, Morito S, Takahashi M, Ushirozako H, Kawabata S, Yamada K, Kanchiku T, Fujiwara Y, Taniguchi S, Iwasaki H, Tadokoro N, Wada K, Yamamoto N, Yasuda A, Hashimoto J, Tani T, Ando K, Machino M, Takatani T, Matsuyama Y, Imagama S. Efficacy of D-Wave Monitoring Combined With the Transcranial Motor-Evoked Potentials in High-Risk Spinal Surgery: A Retrospective Multicenter Study of the Monitoring Committee of the Japanese Society for Spine Surgery and Related Research. Global Spine J 2023; 13:2387-2395. [PMID: 35343273 PMCID: PMC10538305 DOI: 10.1177/21925682221084649] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
STUDY DESIGN Retrospective multicenter cohort study. OBJECTIVES We aimed to clarify the efficacy of multimodal intraoperative neuromonitoring (IONM), especially in transcranial electrical stimulation of motor-evoked potentials (TES-MEPs) with spinal cord-evoked potentials after transcranial stimulation of the brain (D-wave) in the detection of reversible spinal cord injury in high-risk spinal surgery. METHODS We reviewed 1310 patients who underwent TES-MEPs during spinal surgery at 14 spine centers. We compared the monitoring results of TES-MEPs with D-wave vs TES-MEPs without D-wave in high-risk spinal surgery. RESULTS There were 40 cases that used TES-MEPs with D-wave and 1270 cases that used TES-MEPs without D-wave. Before patients were matched, there were significant differences between groups in terms of sex and spinal disease category. Although there was no significant difference in the rescue rate between TES-MEPs with D-wave (2.0%) and TES-MEPs (2.5%), the false-positivity rate was significantly lower (0%) in the TES-MEPs-with-D-wave group. Using a one-to-one propensity score-matched analysis, 40 pairs of patients from the two groups were selected. Baseline characteristics did not significantly differ between the matched groups. In the score-matched analysis, one case (2.5%) in both groups was a case of rescue (P = 1), five (12.5%) cases in the TES-MEPs group were false positives, and there were no false positives in the TES-MEPs-with-D-wave group (P = .02). CONCLUSIONS TES-MEPs with D-wave in high-risk spine surgeries did not affect rescue case rates. However, it helped reduce the false-positivity rate.
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Xu R, Huang X, Guo P, Cai H, Feng S, Lin Z. Ultrasound-guided pacemaker implantation at the bedside: A lifesaving technique for cardiac emergencies. Ann Noninvasive Electrocardiol 2023; 28:e13071. [PMID: 37469208 PMCID: PMC10475883 DOI: 10.1111/anec.13071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/06/2023] [Accepted: 06/29/2023] [Indexed: 07/21/2023] Open
Abstract
OBJECTIVE To investigate the safety and effectiveness of implanting temporary pacemakers using ultrasound-guidance at the bedside for rescuing patients in case of cardiac emergencies. METHODS We enrolled 194 patients with cardiac emergencies requiring temporary pacemakers in this study, and randomly assigned them to either a bedside ultrasound-guided installation group or an electrocardiogram-guided installation group. There were 105 cases in the bedside ultrasound-guided installation group, aged approximately 66.3 ± 10.2 years, and 89 cases in the electrocardiogram-guided installation group, aged approximately 65.8 ± 9.5 years old, and disease composition was similar between the two groups. We then compared the duration of the procedure, success rates, and occurrence of adverse events between the two groups. RESULTS The two groups showed similar clinical characteristics. The success rates of venipuncture and temporary pacemaker electrode placement were both 100% in the bedside ultrasound-guided installation group, compared to 87.8% and 96.7% respectively, in the electrocardiogram-guided installation group, with a statistically significant difference between the two groups. The duration of puncture was significantly shorter in the bedside ultrasound-guided installation group than in the electrocardiogram-guided installation group, with statistically significant differences. Moreover, no adverse events such as hematoma, pneumothorax and electrode dislodgement occurred in the bedside ultrasound-guided installation group, while 13 cases in the electrocardiogram-guided installation group experienced adverse events, and the difference was statistically significant. CONCLUSIONS The bedside installation of temporary pacemakers using ultrasound guidance is a simple, safe, effective, and cost-efficient procedure that boasts a high success rate, does not involve radiation, and enables accurate placement of the electrode catheter.
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Xu K. Population Rescue through an Increase in the Selfing Rate under Pollen Limitation: Plasticity versus Evolution. Am Nat 2023; 202:337-350. [PMID: 37606947 DOI: 10.1086/725425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
AbstractIncreased rates of self-fertilization offer reproductive assurance when plant populations experience pollen limitation, but self-fertilization may reduce fitness by exposing deleterious mutations. If an environmental change responsible for pollen limitation also induces plastic mating system shifts toward self-pollination, the reproductive assurance benefit and inbreeding depression cost of increased self-fertilization occur immediately, while the benefit and cost happen more gradually when increased self-fertilization occur through evolution. I built eco-evolutionary models to explore the demographic and genetic conditions in which higher self-fertilization by plasticity and/or evolution rescues populations, following deficits due to a sudden onset of pollen limitation. Rescue is most likely under an intermediate level of selfing rate increase, either through plasticity or evolution, and this critical level of selfing rate increase is higher under stronger pollen limitation. Generally, rescue is more likely through plasticity than through evolution. Under weak pollen limitation, rescue by enhanced self-fertilization may mainly occur through purging of deleterious mutations rather than reproductive assurance. The selfing rate increase conferring the highest rescue probability is lower when the initial population size is smaller. This article shows the importance of plasticity during plant population rescue and offers insights for future studies of the evolution of mating system plasticity.
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Zimmerman K, Walsh KA, Ferrari JT, Keuler NS, Atherton MJ, Lenz JA. Evaluation of mechlorethamine, vinblastine, procarbazine, and prednisone for the treatment of resistant multicentric canine lymphoma. Vet Comp Oncol 2023; 21:503-508. [PMID: 37222086 DOI: 10.1111/vco.12913] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/03/2023] [Accepted: 05/12/2023] [Indexed: 05/25/2023]
Abstract
Multi-agent chemotherapy successfully induces remission in most naïve, high-grade canine lymphoma patients; however, disease recurrence is common. MOPP (mechlorethamine, vincristine, procarbazine, and prednisone) is an effective rescue protocol used to re-induce remission, but is associated with gastrointestinal toxicity and can be a less desirable option for patients that previously failed vincristine-containing protocols. Therefore, alternative members of the vinca alkaloid family, such as vinblastine, could be potentially advantageous as substitutes for vincristine to reduce gastrointestinal toxicity and chemoresistance. The objective of this study was to report the clinical outcomes and toxicity of 36 dogs with relapsed or refractory multicentric lymphoma treated with a modified MOPP protocol whereby vincristine was replaced with vinblastine (MVPP). The overall response rate to MVPP was 25% with a median progression free survival of 15 days and a median overall survival of 45 days. MVPP at the prescribed doses resulted in modest and transient clinical benefit, but was well tolerated with no treatment delays or hospitalizations secondary to side effects. Given the minimal toxicity, dose intensification could be considered to improve clinical responses.
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Moscovice LR, Eggert A, Manteuffel C, Rault JL. Spontaneous helping in pigs is mediated by helper's social attention and distress signals of individuals in need. Proc Biol Sci 2023; 290:20230665. [PMID: 37528710 PMCID: PMC10394407 DOI: 10.1098/rspb.2023.0665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023] Open
Abstract
Helping behaviour is of special interest for prosociality because it appears to be motivated by the needs of others. We developed a novel paradigm to investigate helping in pigs (Sus scrofa domesticus) and tested 75 individuals in eight groups in their home pens. Two identical compartments were attached to the pen, equipped with a window, and a door that could be opened from the outside by lifting a handle. Pigs in all groups spontaneously opened doors during a 5-day familiarization. During testing, each pig was isolated once from its group and placed in one of the two compartments, in a counter-balanced order. In 85% of cases, pigs released a trapped group member from the test compartment within 20 min (median latency = 2.2 min). Pigs were more likely and quicker to open a door to free the trapped pig than to open a door to an empty compartment. Pigs who spent more time looking at the window of the compartment containing the trapped pig were more likely to help. Distress signals by the trapped pig increased its probability of being helped. Responses are consistent with several criteria for identifying targeted helping, but results can also be explained by selfish motivations.
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Hulshoff CC, Bosgraaf RP, Spaanderman MEA, Inthout J, Scholten RR, Van Drongelen J. The efficacy of emergency cervical cerclage in singleton and twin pregnancies: a systematic review with meta-analysis. Am J Obstet Gynecol MFM 2023; 5:100971. [PMID: 37084870 DOI: 10.1016/j.ajogmf.2023.100971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/31/2023] [Accepted: 04/09/2023] [Indexed: 04/23/2023]
Abstract
OBJECTIVE An emergency (rescue) cervical cerclage can be offered to pregnant women presenting with dilatation and prolapsed membranes in the second trimester of pregnancy because of cervical insufficiency. This study aimed to investigate the effectiveness of an emergency cerclage in both singleton and twin pregnancies in the prevention of extreme premature birth. DATA SOURCES We performed a systematic literature search in PubMed and Embase from inception to June 2022 for transvaginal cervical emergency cerclages. STUDY ELIGIBILITY CRITERIA All studies on transvaginal cervical emergency cerclages with at least 5 patients and reporting survival were included. METHODS Included studies were assessed for quality and risk of bias with an adjusted Quality In Prognosis Studies tool. Random-effects meta-analyses and meta-regressions were performed for the primary outcome: survival. RESULTS Our search yielded 96 studies, incorporating 3239 women, including 14 studies with an expectant management control group, incorporating 746 women. Overall survival after cervical emergency cerclage was 74%, with a fetal survival of 88% and neonatal survival of 90%. Singleton and twin pregnancies showed similar survival, with a pregnancy prolongation of 52 and 37 days and a gestational age at delivery of 30 and 28 weeks, respectively. Meta-regression analyses indicated a significant inverse association between mean gestational age at diagnosis and pregnancy prolongation and no association between dilatation or gestational age at diagnosis and gestational age at delivery. Compared with expectant management, emergency cerclage significantly increased overall survival by 43%, fetal survival by 17% and neonatal survival by 22%, along with a significant pregnancy prolongation of 37 days and reduction in delivery at <28 weeks of gestation of 55%. These effects were more profound in singleton pregnancies than in twin pregnancies. CONCLUSION This systematic review indicates that, in pregnancies threatened by extreme premature birth because of cervical insufficiency, emergency cerclage leads to significantly higher survival, accompanied by significant pregnancy prolongation and reduction in delivery at <28 weeks of gestation, compared with expectant management. The mean gestational age at delivery was 30 weeks, independent of dilatation or gestational age at diagnosis. Survival was similar for singleton and twin pregnancies, implying that emergency cerclage should be considered in both.
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Gallo-Pineda F, Fernández-Gómez M, Hidalgo-Barranco C. Rescue stenting after artery occlusion as a complication of an intrasaccular device-assisted coiling embolization: illustrative case. JOURNAL OF NEUROSURGERY. CASE LESSONS 2023; 5:CASE23171. [PMID: 38015019 PMCID: PMC10550550 DOI: 10.3171/case23171] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 05/10/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Endovascular embolization of wide-necked aneurysms can be challenging. The development of intrasaccular devices like the Contour has enabled us to approach these aneurysms effectively by reducing recanalization rates and eliminating the need for dual antiplatelet therapy, which is particularly beneficial in the case of ruptured aneurysms. Although complications from using these devices are rare, it is crucial to address them properly. In this case, the authors highlight how to manage artery thrombosis caused by device protrusion during aneurysm embolization. OBSERVATIONS This report describes a complication in a male patient with a ruptured anterior communicating artery wide-necked aneurysm. Following Contour-assisted coiling of the aneurysm, a realignment of the detachable apex of the device occluded the A2 segment of the right anterior cerebral artery. After the failure of intra-arterial and intravenous tirofiban infusion as well as mechanical thrombectomy, a self-expanding open-cell stent was deployed in the involved vessel, achieving successful reperfusion. LESSONS The Contour device has a detachable zone that can cause occlusion of the parent vessel after deployment. The use of a stent as a rescue maneuver may be useful if reperfusion of the vessel cannot be achieved through other methods such as aspiration or full-dose antiplatelet therapy.
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Szymczak RK, Sawicka M. Can intranasal delivery of dexamethasone facilitate the management of severe altitude disease? J Travel Med 2023; 30:taad026. [PMID: 36811647 PMCID: PMC10289519 DOI: 10.1093/jtm/taad026] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023]
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Chua D, Rand J, Morton J. Stray and Owner-Relinquished Cats in Australia-Estimation of Numbers Entering Municipal Pounds, Shelters and Rescue Groups and Their Outcomes. Animals (Basel) 2023; 13:1771. [PMID: 37889641 PMCID: PMC10251832 DOI: 10.3390/ani13111771] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/19/2023] [Accepted: 05/20/2023] [Indexed: 10/28/2023] Open
Abstract
Access to comprehensive municipal pound, animal welfare shelters, and rescue group data for admissions and outcomes for stray and owner-relinquished cats in Australia is currently lacking. This hinders effective assessment of existing management strategies for domestic cats by animal management agencies. Our study aimed to estimate the numbers of cat admissions and intakes to Australian municipal council pounds, animal welfare organizations (excluding smaller animal welfare organizations thought to have annual cat intakes of less than 500), and animal rescue groups and their respective outcomes for 2018-2019 (pre-COVID). Unavailable municipal council data were imputed based on known data and council human populations. Only Victoria and New South Wales had publicly available municipal data, and only RSPCA had publicly available data in all states. We estimated a total of 179,615 (7.2/1000 human residents) admissions to pounds, shelters, and rescue groups in 2018-2019, with an estimated 5% reclaimed, 65% rehomed, and 28% euthanized. Reclaim rates were low across all the agencies. Councils operating their own pound had nearly double the euthanasia rate (estimated at 46%) compared to animal welfare organizations (25%). Rescue groups rehomed an estimated 35% of the total number of cats rehomed by all agencies. The upper quartiles of councils with intakes of >50 cats in Victoria and New South Wales had estimated euthanasia rates from 73% to 98%, and 67% to 100%, respectively. We recommend that comprehensive municipal pound, shelter, and rescue statistics be routinely calculated using standardized methods and made available publicly in a timely fashion. This would inform management strategies to optimize live outcomes and therefore reduce the negative mental health impacts on staff tasked with euthanizing healthy and treatable cats and kittens.
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Mao Y, Chen Y, Wang A. Effect of chained one-stop emergency nursing combined with optimized triage path nursing on the rescue effect of chest pain patients in emergency department. Biotechnol Genet Eng Rev 2023:1-12. [PMID: 36951456 DOI: 10.1080/02648725.2023.2193479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
This study aimed to investigate the effect of chained one-stop emergency nursing combined with optimized triage path nursing on emergency chest pain patients. Data of 142 patients with chest pain in emergency department of our hospital were retrospectively analyzed, and from March to May 2022,71 patients with optimized triage route nursing were treated as control group, from June to August 2022, 71 patients with chain one-stop emergency care combined with optimized triage route care were selected as the observation group. Data of completion time of the first electrocardiogram (ECG) completion, troponin result giving time, door to balloon (D to B) time, length of hospital stay and rescue time (disease condition initial assessment time, preliminary examination time, first medical contact time of balloon dilation, D to B dilation time) were collected. The complication rate, adverse event rate and nursing satisfaction were compared between the two groups. The completion time of the first ECG, troponin result giving time, D to B time, initial condition assessment time, hospital stay and rescue time in the observation group were shorter than those in the control group, (all P<0.05). The incidence of complications and adverse events in the observation group were lower than control group (both P<0.05). The scores of nursing satisfaction in the observation group were evidently higher than those in the control group, (P<0.05). Chained one-stop emergency nursing combined with optimized triage path nursing has a good effect on emergency chest pain patients. .
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