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1.
Transplant Rev (Orlando) ; 38(3): 100852, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38615497

RESUMO

BACKGROUND AND AIMS: Cardiovascular disease, associated risk factors and obesity are prevalent after liver transplant and modifiable through lifestyle changes. Understanding what lifestyle interventions and their respective components are effective is essential for translation to clinical practice. We aimed to investigate the effects of diet and physical activity interventions on weight, body mass index and other cardiovascular disease risk factors in liver transplant recipients, and systematically describe the interventions. METHODS: We systematically searched Embase, MEDLINE, Psycho Info, CINAHL, Cochrane central register of controlled trials, PeDro, AMED, BNI, Web of Science, OpenGrey, ClinicalTrials.gov and the international clinical trials registry from inception to 31 May 2023. Search results were screened by two independent reviewers: randomised control trials with interventions that targeted diet and physical activity behaviours in liver transplant recipients were considered eligible. Two independent reviewers extracted and synthesised data for study, participant and intervention details and results. We used the Revised Cochrane Risk of Bias Tool for Randomised Trials to assess risk of bias for outcomes and the GRADE approach to rate the quality of the body of evidence. When two or more studies reported findings for an outcome, we pooled data using random-effects meta-analysis. RESULTS: Six studies were included, reporting three physical activity and three combined diet and physical activity interventions. Participants were 2 months-4 years post-transplant. Interventions lasted 12 weeks-10 months and were delivered remotely and/or in-person, most commonly delivered to individual participants by health care or sports professionals. Five studies described individual tailoring, e.g. exercise intensity. Adherence to interventions ranged from 51% to 94%. No studies reported fidelity. Intervention components were not consistently reported. In meta-analysis, diet and physical activity interventions did not significantly reduce weight or body mass index compared to control groups, however no studies targeted participants with obesity. Diet and physical activity interventions reduced percentage body fat and triglycerides compared to control groups but did not reduce total cholesterol or increase activity. The GRADE quality of evidence was low or very low. CONCLUSION: Diet and physical activity interventions reduced percentage body fat and triglycerides in liver transplant recipients. Further good quality research is needed to evaluate their effect on other cardiovascular disease risk factors, including weight and BMI. Interventions need to be better described and evaluated to improve evidence base and inform patient care.


Assuntos
Doenças Cardiovasculares , Exercício Físico , Transplante de Fígado , Humanos , Doenças Cardiovasculares/prevenção & controle , Doenças Cardiovasculares/etiologia , Fatores de Risco de Doenças Cardíacas , Transplantados , Dieta , Fatores de Risco
2.
PLoS One ; 17(8): e0272978, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35960713

RESUMO

Praying mantids are important models for studying a wide range of chromosome behaviors, yet few species of mantids have been characterized chromosomally. Here we show that the praying mantid Hierodula membranacea has a chromosome number of 2n = 27, and X1X1X2X2 (female): X1X2Y (male) sex determination. In male meiosis I, the X1, X2, and Y chromosomes of H. membranacea form a sex trivalent, with the Y chromosome associating with one spindle pole and the X1 and X2 chromosomes facing the opposite spindle pole. While it is possible that such a sex trivalent could experience different spindle forces on each side of the trivalent, in H. membranacea the sex trivalent aligns at the spindle equator with all of the autosomes, and then the sex chromosomes separate in anaphase I simultaneously with the autosomes. With this observation, H. membranacea can be used as a model system to study the balance of forces acting on a trivalent during meiosis I and analyze the functional importance of chromosome alignment in metaphase as a preparatory step for subsequent correct chromosome segregation.


Assuntos
Mantódeos , Animais , Segregação de Cromossomos , Feminino , Masculino , Mantódeos/genética , Meiose/genética , Metáfase , Cromossomos Sexuais , Fuso Acromático , Cromossomo Y
3.
Cardiovasc Res ; 116(1): 12-27, 2020 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-31386104

RESUMO

Contrary to common perception, modern palliative care (PC) is applicable to all people with an incurable disease, not only cancer. PC is appropriate at every stage of disease progression, when PC needs emerge. These needs can be of physical, emotional, social, or spiritual nature. This document encourages the use of validated assessment tools to recognize such needs and ascertain efficacy of management. PC interventions should be provided alongside cardiologic management. Treating breathlessness is more effective, when cardiologic management is supported by PC interventions. Treating other symptoms like pain or depression requires predominantly PC interventions. Advance Care Planning aims to ensure that the future treatment and care the person receives is concordant with their personal values and goals, even after losing decision-making capacity. It should include also disease specific aspects, such as modification of implantable device activity at the end of life. The Whole Person Care concept describes the inseparability of the physical, emotional, and spiritual dimensions of the human being. Addressing psychological and spiritual needs, together with medical treatment, maintains personal integrity and promotes emotional healing. Most PC concerns can be addressed by the usual care team, supported by a PC specialist if needed. During dying, the persons' needs may change dynamically and intensive PC is often required. Following the death of a person, bereavement services benefit loved ones. The authors conclude that the inclusion of PC within the regular clinical framework for people with heart failure results in a substantial improvement in quality of life as well as comfort and dignity whilst dying.


Assuntos
Planejamento Antecipado de Cuidados/normas , Insuficiência Cardíaca/terapia , Cuidados Paliativos/normas , Planejamento Antecipado de Cuidados/ética , Atitude Frente a Morte , Consenso , Efeitos Psicossociais da Doença , Europa (Continente) , Nível de Saúde , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Insuficiência Cardíaca/psicologia , Humanos , Saúde Mental , Cuidados Paliativos/ética , Equipe de Assistência ao Paciente , Qualidade de Vida , Resultado do Tratamento
4.
Eur J Oncol Nurs ; 34: 76-81, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29784142

RESUMO

PURPOSE: Breathlessness is a distressing symptom, particularly common in those with advanced lung cancer. Previous research has identified the symptom occurrence of episodic breathlessness, identifying average frequency, duration and severity of episodes, but has not explored the distress specifically associated with these episodes. This study explored the distress associated with episodic breathlessness for adults with advanced cancer and the relative impact of three elements; frequency, duration or severity. METHODS: Semi-structured interviews were conducted with four participants with advanced lung cancer. Analysis adopted an interpretative phenomenological approach. RESULTS: A complex relationship existed between distress caused by episodic breathlessness and its frequency, duration and severity for study participants. Episodic breathlessness had a significant impact on participant's perceptions of self and previous experience effected how distressed they were by their breathlessness. The emotional work created by the symptom was considerable for individuals. CONCLUSION: The study highlights the importance of recognizing symptoms as a combination of different experiences that may each cause different levels of distress. Initial evidence is provided that the emotional work involved for patients to self-manage each separate element of breathlessness should be considered in its treatment.


Assuntos
Dispneia/etiologia , Dispneia/psicologia , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/fisiopatologia , Adaptação Psicológica , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estresse Psicológico , Fatores de Tempo , Reino Unido
5.
Genome Announc ; 6(5)2018 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-29437090

RESUMO

We report here the complete genome sequences of 44 phages infecting Arthrobacter sp. strain ATCC 21022. These phages have double-stranded DNA genomes with sizes ranging from 15,680 to 70,707 bp and G+C contents from 45.1% to 68.5%. All three tail types (belonging to the families Siphoviridae, Myoviridae, and Podoviridae) are represented.

6.
Genome Announc ; 5(45)2017 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-29122860

RESUMO

Caterpillar, Nightmare, and Teacup are cluster AU siphoviral phages isolated from enriched soil on Arthrobacter sp. strain ATCC 21022. These genomes are 58 kbp long with an average G+C content of 50%. Sequence analysis predicts 86 to 92 protein-coding genes, including a large number of small proteins with predicted transmembrane domains.

7.
PLoS One ; 8(7): e69273, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23874930

RESUMO

Bacteriophages isolated on Mycobacterium smegmatis mc(2)155 represent many distinct genomes sharing little or no DNA sequence similarity. The genomes are architecturally mosaic and are replete with genes of unknown function. A new group of genomes sharing substantial nucleotide sequences constitute Cluster J. The six mycobacteriophages forming Cluster J are morphologically members of the Siphoviridae, but have unusually long genomes ranging from 106.3 to 117 kbp. Reconstruction of the capsid by cryo-electron microscopy of mycobacteriophage BAKA reveals an icosahedral structure with a triangulation number of 13. All six phages are temperate and homoimmune, and prophage establishment involves integration into a tRNA-Leu gene not previously identified as a mycobacterial attB site for phage integration. The Cluster J genomes provide two examples of intron splicing within the virion structural genes, one in a major capsid subunit gene, and one in a tail gene. These genomes also contain numerous free-standing HNH homing endonuclease, and comparative analysis reveals how these could contribute to genome mosaicism. The unusual Cluster J genomes provide new insights into phage genome architecture, gene function, capsid structure, gene mobility, intron splicing, and evolution.


Assuntos
Proteínas do Capsídeo/genética , Micobacteriófagos/classificação , Micobacteriófagos/genética , Proteínas da Cauda Viral/genética , Sequência de Aminoácidos , Bacteriólise/genética , Composição de Bases , Sequência de Bases , Proteínas do Capsídeo/química , Análise por Conglomerados , Elementos de DNA Transponíveis , Ordem dos Genes , Tamanho do Genoma , Genoma Viral , Íntrons , Dados de Sequência Molecular , Micobacteriófagos/ultraestrutura , Fases de Leitura Aberta , Filogenia , Splicing de RNA , Proteínas da Cauda Viral/química , Vírion/ultraestrutura , Integração Viral/genética
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