RESUMO
This study aimed to prospectively evaluate the risk factors of infection by Aelurostrongylus abstrusus in Brazilian cats with cough and/or radiographic changes, using as diagnostic tools the Baermann method (BM), polymerase chain reaction (PCR) of feces, bronchoalveolar lavage fluid (BALF), and cytology. Forty-three cats that were presented with cough or lung radiographic abnormalities compatible with bronchoalveolar disease were included in the study. After clinical evaluation, feces samples were collected to investigate lungworm parasitism through BM and PCR. BALF was performed to provide samples for cytology, bacteriology, and fungal culture. Stool PCR was considered the gold standard for diagnosis tests, and the other methods were evaluated by their agreement. PCR presented 74% (32/43) of positivity for A. abstrusus, while in the BM, 41% (18/43) were positive. BM showed sensitivity of 56.25% and specificity of 100% when compared with PCR. No larva was found in the cytological evaluation of 21 BALF samples. Lungworm is an important cause of bronchopulmonary disease in domestic cats in Brazil and should be included as a differential diagnosis when a cat is presented with cough or radiographic abnormalities. BM is a sensitive, non-invasive, and cheap technique to diagnose the disease, but it is not as sensitive as PCR.
Assuntos
Doenças do Gato , Metastrongyloidea , Infecções por Strongylida , Gatos , Animais , Brasil/epidemiologia , Infecções por Strongylida/diagnóstico , Infecções por Strongylida/veterinária , Fezes , Fatores de Risco , Tosse , Doenças do Gato/diagnósticoRESUMO
PURPOSE: Family caregivers of palliative cancer patients experience various supportive care needs. Appropriate self-reported instruments with robust psychological properties are required to identify these needs of family caregivers. Therefore, we conducted a systematic review to identify self-reported supportive care needs assessment instruments for family caregivers of palliative cancer patients and assess their contents, psychometric properties, and applicability. METHODS: Systematic searches were conducted in six English databases and four Chinese databases from inception to October 2020 and updated in June 2021. The instruments identified were evaluated using an 18-item checklist consisting of six domains: conceptual model, content validity, reliability, construct validity, scoring and interpretation, and respondent burden and presentation. RESULTS: Six articles, describing four self-reported needs assessment instruments, were included in the review. These instruments varied significantly in terms of contents, constructs, scoring methods, and applicability. Three of these instruments were developed to assess the comprehensive supportive care needs of family caregivers, while one was specifically developed to assess the spiritual needs of family caregivers. With respect to psychometric properties, none of the instruments identified met all the criteria. Three major shortcomings were identified, namely, lack of longitudinal validity, lack of a strategy for interpreting missing data, and lack of a description of the literacy level required to understand the questions. Additionally, the instrument development processes assessed in this study lacked qualitative elements. CONCLUSIONS: End-users need to consider contents, psychometric properties, and applicability when choosing an appropriate needs assessment instrument according to individual purpose and context. Further evaluation or development of needs assessment for the family caregivers of palliative cancer patients is needed, with a particular emphasis on caregivers' perspectives.
Assuntos
Neoplasias , Cuidados Paliativos , Cuidadores/psicologia , Humanos , Avaliação das Necessidades , Neoplasias/psicologia , Neoplasias/terapia , Cuidados Paliativos/métodos , Psicometria/métodos , Reprodutibilidade dos Testes , Inquéritos e QuestionáriosRESUMO
PURPOSE: This study investigated (1) the discrepancies between the nurses' current and perceived necessary practices of family-centred care (FCC), and (2) the nurses' demographic characteristics associated with current and perceived necessary practices of FCC for hospitalised children and their families in Malawi. DESIGN AND METHODS: A cross-sectional study involving 444 nurses was conducted. The Family-Centred Care Questionnaire-Revised was used to examine the discrepancies between the nurses' current and perceived necessary practices of FCC. Univariate and multivariate statistical analyses were performed to identify the nurses' demographic characteristics associated with current and perceived necessary practices of FCC. RESULTS: The total mean score of the nurses' current practices of FCC (M = 34.78, SD = 7.06) was significantly lower than that of the nurses' practices of FCC that were perceived as necessary (M = 38.63, SD = 5.60, p < 0.001). The nurses who were over 40 years of age (regression coefficient, ß = 9.162, p = 0.014), had a postgraduate qualification (ß = 23.314, p < 0.001), were separated or widowed (ß = 9.661, p = 0.029), had a Tumbuka cultural background (ß = 12.984, p < 0.001), were Seventh-day Adventist members (ß = 8.863, p = 0.026), and worked in mission hospitals (ß = 16.401, p = 0.021) were more likely to implement current practices of FCC. Conversely, the nurses who were members of the Moslem, Buddhist, or Hindi religious denomination (ß = 6.587, p = 0.040), had a Tonga or Ngonde cultural background (ß = 6.625, p = 0.046), and were nurse midwife technicians (ß = -23.528, p = 0.012) were more likely to implement practices of FCC that they perceived as necessary. CONCLUSION: Significant differences between the nurses' current and perceived necessary practices of FCC suggested that there were barriers to implementing necessary practices of FCC. The nurses' cultural and religious backgrounds were predictors of current practices of FCC, and this finding could direct the future development and testing of FCC interventions in Malawi. PRACTICE IMPLICATIONS: Continued educational activities and research on the factors that contributed to the discrepancies between the nurses' current and perceived necessary practices of FCC and their impact on FCC in Malawi are critical.
Assuntos
Criança Hospitalizada , Enfermeiras e Enfermeiros , Criança , Estudos Transversais , Hospitais , Humanos , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Adjuvant endocrine therapies are known to induce undesirable adverse effects such as vasomotor, vaginal and musculoskeletal symptoms among breast cancer patients. Drugs used in these therapies are often metabolised by cytochrome P450 (CYP) enzymes, in which their metabolising activities can be modified by single nucleotide polymorphisms (SNP) in CYP genes and CYP genotypes. This review aims to explore whether SNPs or genotypes of CYP are associated with the occurrence, frequency and severity of vasomotor, vaginal and musculoskeletal symptoms in breast cancer patients on adjuvant endocrine therapies. METHODS: A literature review was conducted using five electronic databases, resulting in the inclusion of 14 eligible studies, and their findings were presented narratively. Selected items from the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) checklist were used for critical appraisal of the reporting quality of the included studies. RESULTS: Most of the included studies showed that SNPs or genotypes of CYP that modify its metabolising activity have no effect on the occurrence, frequency or severity of vasomotor symptoms, including hot flashes. One study showed no correlation of these genetic variations in CYP with musculoskeletal symptoms, and no data were available on the association between such genetic variations and vaginal symptoms. CONCLUSIONS: Overall, genetic variations in CYP have no effect on the experience of hot flashes among breast cancer patients. We recommend exploration of the link between the active metabolites of chemotherapeutic drugs and the molecules shown to affect the occurrence or severity of hot flashes, and the establishment of the relationship between such genetic variations and patients' experience of musculoskeletal and vaginal symptoms. Subgroup analyses based on patients' duration of adjuvant endocrine therapies in such studies are recommended.
Assuntos
Antineoplásicos Hormonais/efeitos adversos , Artralgia/epidemiologia , Neoplasias da Mama/terapia , Sistema Enzimático do Citocromo P-450/genética , Fogachos/epidemiologia , Vagina/patologia , Antineoplásicos Hormonais/farmacocinética , Artralgia/induzido quimicamente , Artralgia/diagnóstico , Artralgia/genética , Atrofia/induzido quimicamente , Atrofia/diagnóstico , Atrofia/epidemiologia , Atrofia/genética , Neoplasias da Mama/genética , Quimioterapia Adjuvante/efeitos adversos , Quimioterapia Adjuvante/métodos , Sistema Enzimático do Citocromo P-450/metabolismo , Antagonistas de Estrogênios/efeitos adversos , Antagonistas de Estrogênios/farmacocinética , Estrogênios/metabolismo , Feminino , Predisposição Genética para Doença , Fogachos/induzido quimicamente , Fogachos/diagnóstico , Fogachos/genética , Humanos , Mastectomia , Estudos Observacionais como Assunto , Polimorfismo de Nucleotídeo Único , Índice de Gravidade de Doença , Tamoxifeno/efeitos adversos , Tamoxifeno/análogos & derivados , Tamoxifeno/farmacocinética , Vagina/efeitos dos fármacosRESUMO
BACKGROUND: A diagnosis of cancer and its treatments can be associated with a prominent issue of loss of dignity or an undermined sense of dignity for patients. Research is increasingly being conducted into how patients with cancer experience dignity, with the aim to build clinical foundations for care that preserves patients' sense of dignity. AIM: This review summarises and synthesises the available empirical literature on the experience of dignity in patients with cancer regarding both the perception of dignity and associated factors. METHOD: An integrative review method was used. A literature search was conducted in 11 databases using the search terms 'dignity' OR 'existential' OR 'existentialism' combined with 'cancer'. The Mixed Methods Appraisal Tool (version 2011) was adopted to appraise the methodological quality of the included studies. RESULTS: Nine qualitative studies and 13 quantitative studies met the selection criteria and were included in the review. The ways that patients with cancer perceived dignity include autonomy/control, respect, self-worth, family connectedness, acceptance, hope/future and God/religious. Factors associated with dignity include demographics, physical and psychosocial distress, experiences of suffering and coping strategies. CONCLUSION: Dignity-conserving care should respect patients' human autonomy to strengthen their sense of self-worth, acceptance, hope, reinforce family connectedness, and foster coping strategies to control the physical, psychosocial factors and experience of sufferings that threaten their sense of dignity.
Assuntos
Neoplasias , Respeito , Adaptação Psicológica , Existencialismo , Humanos , Cuidados PaliativosRESUMO
BACKGROUND: Cancer patients often experience severe financial distress due to the high cost of their treatment, and strategies are needed to objectively measure this financial distress. The COmprehensive Score for financial Toxicity-Functional Assessment of Chronic Illness Therapy (COST-FACIT) is one instrument used to measure such financial distress. This study aimed to translate the COST-FACIT (Version 2) [COST-FACIT-v2] instrument into traditional Chinese (COST-FACIT-v2 [TC]) and evaluate its psychometric properties. METHODS: The Functional Assessment of Chronic Illness Therapy (FACIT) translation method was adopted. The translated version was reviewed by an expert panel and by 20 cancer patients for content validity and face validity, respectively, and 640 cancer patients, recruited from three oncology departments, completed the translated scale. Its reliability was evaluated in terms of internal consistency and test-retest reliability. Confirmatory factor analysis has been used to evaluate the one- and two-factor structures of the instrument reported in the literature. The convergent validity was examined by the correlation with health-related quality of life (HRQoL) and psychological distress. Known-group validity was examined by the difference in the COST-FACIT-v2 (TC) total mean score between groups with different income levels and frequency of health care service use. RESULTS: The COST-FACIT-v2 (TC) showed good content and face validity and demonstrated high internal consistency (Cronbach's alpha, 0.86) and acceptable test-retest reliability (intraclass correlation coefficient, 0.71). Confirmatory factor analysis showed that the one- and two-factor structures of the instrument that have been reported in the literature could not be satisfactorily fitted to the data. Psychological distress correlated significantly with the COST-FACIT-v2 (TC) score (r = 0.47; p < 0.001). HRQOL showed a weak to moderate negative correlation with the COST-FACIT-v2 (TC) score (r = - 0.23 to - 0.46; p < 0.001). Significant differences were seen among the COST-FACIT-v2 (TC) scores obtained in groups of different income level and frequency of health care service use. CONCLUSIONS: The COST-FACIT-v2 (TC) showed some desirable psychometric properties to support its validity and reliability for assessing cancer patients' level of financial toxicity.
Assuntos
Doença Crônica/economia , Doença Crônica/terapia , Efeitos Psicossociais da Doença , Neoplasias/economia , Psicometria/instrumentação , Adulto , Idoso , Povo Asiático , Análise Fatorial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Fatores Socioeconômicos , Inquéritos e Questionários , TraduçõesRESUMO
PURPOSE: To identify a cut-off score for the COmprehensive Score for financial Toxicity (COST) to predict a clinical implication of a high level of financial toxicity (FT). METHODS: A total of 640 cancer patients were recruited from three regional hospitals in Hong Kong. They completed a questionnaire comprising the COST measure and the Functional Assessment of Cancer Therapy - General (FACT-G) instrument. The cut-off score for the COST that predicts the lowest quartile of the FACT-G total score was identified by receiver operating characteristic (ROC) analysis. The sample was then stratified by this cut-off score, and characteristics were compared using Fisher's exact, chi-squared or independent sample t-test. RESULTS: The mean scores were 20.1 ± 8.8 for the COST and 71.6 ± 15.5 for the FACT-G. The ROC analysis suggested that the cut-off of 17.5 yielded an acceptable sensitivity and specificity. Characteristics of patients with a higher level of FT included being younger, having a monthly household income of < 10,000 HKD (approximately 1290 USD), being more likely not employed, having stage IV cancer and receiving targeted and/or immunotherapy. In terms of financial support, a higher proportion of these patients had discussed financial issues with health care professionals and had received financial assistance. In addition, fewer of them were covered by private health insurance. CONCLUSION: Our findings suggest a cut-off for the COST that can be used to screen for FT in clinical settings. In addition, while a considerable proportion of high-FT patients received targeted therapy, they often received financial assistance. There is a gap between financial hardship and assistance that warrants attention.
Assuntos
Neoplasias , Qualidade de Vida , Efeitos Psicossociais da Doença , Gastos em Saúde , Humanos , Seguro Saúde , Neoplasias/terapia , Inquéritos e QuestionáriosRESUMO
PURPOSE: To examine the cross-lagged relationship between depressive symptoms and health-related quality of life (HRQoL) in patients receiving maintenance hemodialysis. METHODS: A longitudinal, observational study was conducted in two public hospitals in Shanghai, China. The sample consisted of 204 patients at baseline (T1). Of these, 144 completed the 12-month follow-up survey (T2), and 135 completed the 24-month follow-up survey (T3). Depressive symptoms were assessed using the depression subscale of the Hospital Anxiety and Depression Scale, and HRQoL was assessed using the Kidney Disease Quality of Life 36 short form. Cross-lagged path analysis was used to examine the temporal relationship between depressive symptoms and domains of health-related quality of life. RESULTS: Lower levels of three out of five domains of HRQoL (physical functioning, burden of kidney disease, and symptoms of kidney disease) at T1 were associated with increases in depressive symptoms at T2. Moreover, higher depressive symptoms at T2 were associated with decreases in four domains of HRQoL (mental functioning, burden of kidney disease, symptoms of kidney disease, and effects of kidney disease) at T3. CONCLUSIONS: Patients who had poor HRQoL were more likely to report more subsequent depressive symptoms, which in turn predict lower HRQoL over time. It indicates a need to break this cycle in patients receiving maintenance hemodialysis.
Assuntos
Depressão , Qualidade de Vida , China/epidemiologia , Depressão/epidemiologia , Humanos , Estudos Longitudinais , Qualidade de Vida/psicologia , Diálise RenalRESUMO
INTRODUCTION: Alteplase is an approved treatment for acute ischemic stroke. Tenecteplase is a genetically modified form of alteplase, with lower cost and a more favourable pharmacokinetic profile allowing bolus injection. The aim of this study was to compare both drugs in adult patients with acute ischemic stroke undergoing thrombolysis. MATERIAL AND METHODS: PubMed and CENTRAL were searched for observational and experimental studies comparing both drugs in the population of interest. Additional studies were sought in clinical trial registries and by means of reference check. The efficacy outcomes of interest were functional status at 3 months, recanalization and early neurological improvement (ENI). The safety outcomes of interest were cerebral haemorrhage (ICH), symptomatic ICH and mortality. The effect measure of interest was the absolute risk difference (ARD). Effect measures for each outcome were pooled across studies using random effect models. RESULTS: Eight studies were included, involving 2031 patients. Overall, there were no differences in terms of good or excellent functional outcome (ARR = 0.07 and 0.03 respectively, p > 0.05 for both comparisons) but tenecteplase patients showed higher rates of recanalization (ARD = 0.11, 95% CI [0.01;0.20]) and ENI (ARD = 0.10, 95% CI [0.02;0.17]). There were no differences between groups in terms of ICH (ARD = -0.02, 95% CI [-0.06;0.01]), symptomatic ICH (ARD = 0.00, 95% CI [-0.01;0.02]) or death (ARD = 0.00, 95% CI [-0.03;0.03]). CONCLUSION: Tenecteplase is an alternative to alteplase for stroke thrombolysis, with lower cost and a more favourable pharmacokinetic profile.
Assuntos
Fibrinolíticos/uso terapêutico , Tenecteplase/uso terapêutico , Terapia Trombolítica/métodos , AVC Trombótico/tratamento farmacológico , Hemorragia Cerebral/induzido quimicamente , Fibrinolíticos/efeitos adversos , Fibrinolíticos/farmacocinética , Humanos , Tenecteplase/efeitos adversos , Tenecteplase/farmacocinética , Ativador de Plasminogênio Tecidual/farmacocinética , Ativador de Plasminogênio Tecidual/uso terapêuticoRESUMO
The Brazilian state of Goiás, untouched by spotted fever (SF) until 2012, has subsequently reported cases of the disease in several regions. This study aimed to survey the diversity of potential vectors and rickettsia in areas of Goiás under environmental surveillance or case investigation for SF. Collected specimens were assayed with molecular biology technology using DNA extraction, amplification and sequencing of fragments of the genes gltA, ompA, ompB and sca4 to detect rickettsia in ticks and fleas. Amplification of cytochrome oxidase subunit II and 16S rRNA was performed to assist tick identification. Rickettsia felis (Rickettsiales: Rickettsiaceae) was found in Ctenocephalides felis (Bouché, 1835) (Siphonaptera: Pulicidae). Rickettsia bellii was found in Amblyomma rotundatum Koch, 1844 (Ixodida: Ixodidae) and in Amblyomma cajennense sensu lato. Rickettsia sp. strain NOD was found in Amblyomma nodosum Neumann, 1899. Of the Amblyomma cajennense complex, Amblyomma sculptum Berlese, 1888 was confirmed in the northern, northeast, midwest and southeast regions of Goiás, whereas Amblyomma cajennense sensu stricto (Fabricius, 1787) was found only in the northern region of the state. Amblyomma dubitatum Neumann, 1899 associated with a species of the A. cajennense complex was the most common epidemiological finding, although Rickettsia rickettsii was not detected. This is the first report of Rickettsia sp. strain NOD in Goiás.
Assuntos
Vetores Aracnídeos/microbiologia , Insetos Vetores/microbiologia , Ixodidae/microbiologia , Rickettsia/fisiologia , Febre Maculosa das Montanhas Rochosas/transmissão , Sifonápteros/microbiologia , Animais , Vetores Aracnídeos/classificação , Vetores Aracnídeos/genética , Biodiversidade , Brasil/epidemiologia , DNA Bacteriano/química , DNA Bacteriano/isolamento & purificação , Ecossistema , Ectoparasitoses/microbiologia , Ectoparasitoses/parasitologia , Feminino , Insetos Vetores/classificação , Ixodidae/classificação , Ixodidae/genética , Masculino , Filogenia , Reação em Cadeia da Polimerase , Rickettsia/classificação , Rickettsia/genética , Febre Maculosa das Montanhas Rochosas/epidemiologia , Febre Maculosa das Montanhas Rochosas/microbiologia , Alinhamento de Sequência , Sifonápteros/classificaçãoRESUMO
BACKGROUND: Infant colic occurs between 10% and 40% of healthy born children in their first year of life. Its assessment is complex, and there are only a few instruments of appraisement and diagnosis. METHODS: Scientific articles located through a systematic review using the Pubmed, Scopus, Cochrane, PEDro, Dialnet, IME and Dialnet databases. Two researchers obtained data independently from relevant studies previously identified. Risk of bias was assessed according to the methods recommended by the Cochrane Collaboration, with reporting following the preferred reported items for systematic reviews and meta-analyses guidelines and evaluating their methodological quality based on the EMPRO scale. RESULTS: Four tools were obtained for valuation of infant colic. Parental diary of infant cry and fuss behaviour, Crying Pattern Questionnaire, Infant Colic Scale and, lastly, a validity of the Turkish version of the Infant Colic Scale. CONCLUSIONS: Analysis of the existing tools involves the need to design and validate new assessment scales for this clinical frame.
Assuntos
Cólica/diagnóstico , Choro , Comportamento do Lactente/fisiologia , Humor Irritável , Cólica/psicologia , Humanos , Lactente , Comportamento do Lactente/psicologia , Pais/psicologia , Guias de Prática Clínica como Assunto , Psicometria , Estudos de Validação como AssuntoRESUMO
AIMS AND OBJECTIVES: To conduct an integrative review of the current literature on using life review as an intervention to address the spiritual need of patients with terminal illnesses. BACKGROUND: Palliative care highlights the holistic approach of care including the spiritual aspect. Life review has been used in palliative nursing intending to enhance patients' emotional and spiritual well-being, and quality of life. However, there is a lack of publications that provide a structured overview on life review programmes and their effectiveness. DESIGN: Integrative review. METHODS: The Whittemore and Knafl integrative review method was used. Five major online databases were included in our literature search. The keywords used were "life review" and "palliative care, terminal care, terminally ill, death & dying, hospice, spiritual wellbeing, spirituality". Seven primary papers were identified, critically appraised and synthesised in the final review. RESULTS: There are limited clinical studies on life review programmes for patients with terminal illness. The research design of these studies is too widely varied for meta-analysis. Here, we identified two major programmes of life review as an intervention to address the spiritual well-being of patients with terminal illness. However, repeated studies on the effectiveness of these two programmes are lacking. The shorter programme of life review is more likely to be applicable and effective for terminal patients. CONCLUSIONS: Further research in this area is required to provide strong evidence on the effectiveness and applicability of life review in patients receiving palliative care. RELEVANCE TO CLINICAL NURSING: This review adds weight to the need of a better understanding on the use of life review in addressing the spiritual needs of patients with terminal illness. Such understanding would provide evidence for the use of life review as an alternative approach in palliative care delivery.
Assuntos
Cuidados Paliativos na Terminalidade da Vida/psicologia , Cuidados Paliativos/psicologia , Qualidade de Vida , Espiritualidade , Doente Terminal/psicologia , Cuidados Paliativos na Terminalidade da Vida/métodos , Enfermagem de Cuidados Paliativos na Terminalidade da Vida/métodos , Humanos , Cuidados Paliativos/métodosRESUMO
AIMS: The biofilm produced by Staphylococcus aureus isolates involved in clinical or subclinical bovine mastitis and the activity of nisin and lysostaphin against the preformed biofilm produced by these strains were investigated. METHODS AND RESULTS: Eighteen strains were tested and all produced biofilm. Eight strains with distinct biofilm composition were selected for the antimicrobial activity assays. The minimal inhibitory concentration of each bacteriocin was determined against the planktonic cells and ranged from 15·6 to 500 µg ml(-1) for nisin, and from 3·9 to 50 µg ml(-1) , for lysostaphin. Lysostaphin treatment (0·4 µg ml(-1) ) for 4 h caused a strong Staph. aureus 4181 biofilm detachment and death of the majority of the sessile cells, while nisin treatment (100 µg ml(-1) ) for the same time caused only a great reduction in cell viability. Additionally, combination of both bacteriocins for 4 h resulted in significant death of the sessile cells but no biofilm detachment. CONCLUSIONS: The treatment with lysostaphin alone or in combination with nisin was effective in killing most biofilm sessile cells. SIGNIFICANCE AND IMPACT OF THE STUDY: The action of lysostaphin, either alone or in combination with nisin, against established staphylococcal biofilm may represent an alternative to bovine mastitis control. However, the duration of the treatment should be considered for its application so that the best effectiveness can be achieved.
Assuntos
Biofilmes/efeitos dos fármacos , Lisostafina/farmacologia , Mastite Bovina/tratamento farmacológico , Nisina/farmacologia , Infecções Estafilocócicas/tratamento farmacológico , Staphylococcus aureus/efeitos dos fármacos , Animais , Antibacterianos/farmacologia , Bovinos , Sobrevivência Celular/efeitos dos fármacos , Feminino , Lisostafina/uso terapêutico , Testes de Sensibilidade Microbiana/métodos , Nisina/uso terapêutico , Plâncton/efeitos dos fármacos , Staphylococcus aureus/fisiologiaRESUMO
This paper presents results on the age, growth and population structure of a small grouper, the mutton hamlet Alphestes afer, and discusses the observed size and age structure patterns in relation to reproductive strategies among the epinephelids. Ages were determined by examination of sectioned otoliths, which showed a distinct pattern of alternating translucent and opaque zones that formed annually, as validated with tetracycline labelling. The von Bertalanffy growth function was adjusted to the length-at-age data of the males and females, but no significant differences were observed between the resulting parameters. The females, however, were older at given sizes and attained larger sizes and ages, with a maximum observed longevity of 13 years and a total length (LT ) of 26 cm, while the males attained maximum longevities of only 10 years and a 22 cm maximum LT . The LT and age range for the sex change was 16-25 cm and 3-11 years. The total mortality rate (Z) was estimated to be 0·55 for females and 0·82 for males. With the males younger and smaller than the females, this species differed from the pattern commonly observed for protogynous epinephelids. Males had slower growth after maturation, probably due to energy allocation to sperm production during sexual development. This study shows that demography is an important tool to understand the pathways for reproductive strategies in grouper populations.
Assuntos
Bass/crescimento & desenvolvimento , Organismos Hermafroditas/fisiologia , Processos de Determinação Sexual , Animais , Bass/anatomia & histologia , Tamanho Corporal , Feminino , Organismos Hermafroditas/crescimento & desenvolvimento , Longevidade , Masculino , Reprodução , Caracteres SexuaisRESUMO
KEY MESSAGE: Combining biparental and multiparental connected population analyses was useful for the identification of 11 QTLs in two new genetic backgrounds of carrot resistance to Alternaria dauci and for breeding recommendations. Leaf blight due to the fungus Alternaria dauci is the major carrot foliar disease worldwide. Some resistance QTLs have been previously identified in one population, but the evaluation of additional genetic backgrounds with higher level of resistance would give opportunities for breeders to combine them by pyramiding. For this purpose, two segregating populations were evaluated twice across 4 years in the same environment (1) to compare the efficiency of the single vs. the connected populations approach for characterizing the new sources of carrot resistance to Alternaria dauci; (2) to evaluate the stability of QTLs over the years; and (3) to give recommendations to breeders for marker-assisted selection. Single and connected analyses were complementary; their combination allowed the detection of 11 QTLs. Connected analyses allowed the identification of common and specific QTLs among the two populations and the most favorable allele at each QTL. Important contrasts between allelic effects were observed with four and five most favorable alleles coming from the two resistant parental lines, whereas two other favorable alleles came from the susceptible parental line. While four QTLs were consistent across years, seven were detected within a single year. The heritabilities for both populations PC2 and PC3 were high (75 and 78%, respectively), suggesting that the resistance of carrot to A. dauci was little affected by these environmental conditions, but the instability of QTL over years may be due to changing environmental conditions. The complementarity between these parental lines in terms of interesting allelic combinations is also discussed.
Assuntos
Daucus carota/genética , Resistência à Doença/genética , Doenças das Plantas/genética , Locos de Características Quantitativas , Alternaria/patogenicidade , Mapeamento Cromossômico , DNA de Plantas/genética , Daucus carota/microbiologia , Genética Populacional , Genótipo , Fenótipo , Melhoramento Vegetal , Doenças das Plantas/microbiologiaRESUMO
The increasing incidence of rare mastitis-causing pathogens has urged the implementation of fast and efficient diagnostic and control measures. Prototheca algae are known to be associated with diseases in humans and animals. In the latter, the most prevalent form of protothecosis is bovine mastitis with Prototheca zopfii and Prototheca blaschkeae representing the most common pathogenic species. These nonphotosynthetic and colorless green algae are ubiquitous in different environments and are widely resistant against harmful conditions and antimicrobials. Hence, the association of Prototheca with bovine mastitis represents a herd problem, requiring fast and easy identification of the infectious agent. The purpose of this study was to develop a reliable and rapid method, based on the internal transcribed spacer (ITS) sequences of ribosomal DNA, for molecular identification and discrimination between P. zopfii and P. blaschkeae in bovine mastitic milk. The complete ITS sequences of 32 Prototheca isolates showed substantial interspecies but moderate intraspecies variability facilitating the design of species-specific PCR amplification primers. The species-specific PCR was successfully applied to the identification of P. zopfii and P. blaschkeae directly from milk samples. The intraspecific ITS phylogeny was compared for each species with the geographical distribution of the respective Prototheca isolates, but no significant correlation was found.
Assuntos
DNA Bacteriano/genética , DNA Espaçador Ribossômico/genética , Mastite Bovina/microbiologia , Leite/microbiologia , Prototheca/genética , Animais , Sequência de Bases , Bovinos , Feminino , Genótipo , Filogenia , Reação em Cadeia da Polimerase/veterinária , Prototheca/classificação , Prototheca/isolamento & purificaçãoRESUMO
BACKGROUND: PIDs are a heterogeneous group of genetic illnesses, and delay in their diagnosis is thought to be caused by a lack of awareness among physicians concerning PIDs. The latter is what we aimed to evaluate in Brazil. METHODS: Physicians working at general hospitals all over the country were asked to complete a 14-item questionnaire. One of the questions described 25 clinical situations that could be associated with PIDs and a score was created based on percentages of appropriate answers. RESULTS: A total of 4026 physicians participated in the study: 1628 paediatricians (40.4%), 1436 clinicians (35.7%), and 962 surgeons (23.9%). About 67% of the physicians had learned about PIDs in medical school or residency training, 84.6% evaluated patients who frequently took antibiotics, but only 40.3% of them participated in the immunological evaluation of these patients. Seventy-seven percent of the participating physicians were not familiar with the warning signs for PIDs. The mean score of correct answers for the 25 clinical situations was 48.08% (±16.06). Only 18.3% of the paediatricians, 7.4% of the clinicians, and 5.8% of the surgeons answered at least 2/3 of these situations appropriately. CONCLUSIONS: There is a lack of medical awareness concerning PIDs, even among paediatricians, who have been targeted with PID educational programmes in recent years in Brazil. An increase in awareness with regard to these disorders within the medical community is an important step towards improving recognition and treatment of PIDs.
Assuntos
Competência Clínica/estatística & dados numéricos , Síndromes de Imunodeficiência/epidemiologia , Médicos/estatística & dados numéricos , Brasil , Estudos Transversais , Cirurgia Geral , Hospitais Gerais , Humanos , Síndromes de Imunodeficiência/diagnóstico , Medicina Interna , Pediatria , Papel do Médico , Prática Profissional , Inquéritos e QuestionáriosRESUMO
BACKGROUND: In the Iberian Peninsula, the Mirandese dialect, spoken in Miranda do Douro (Portugal) close to the north-eastern border with Spain, has attracted much attention. Aim, subjects and methods: This study focuses on providing further insight into the connections forged between Miranda do Douro and regions in the nearby Province of Zamora. This is in order to better assess the extent to which such relations could have been detained by the current patterns of genetic diversity of the populations, whilst contributing to refining the knowledge on patterns of micro-differentiation within the Peninsula. The genetic characterization of both populations was performed through the analysis of X-chromosomal markers: X-STRs and X-indels. RESULTS AND CONCLUSION: The results showed that Miranda do Douro tended to present slightly lower levels of diversity in comparison to the other studied regions, which can be a discreet sign of isolation of that population over the years that might have led the way to the preservation of a language not spoken anywhere else in the country. The analysis of X-STRs particularly brought to light the presence of a subtle population sub-structure at the micro-geographical area encompassing the north-eastern border, which seems to portray the importance of the political border as a mechanism withholding gene flow between the two countries.
Assuntos
Cromossomos Humanos X/genética , Fluxo Gênico/genética , Variação Genética/genética , Idioma , Isolamento Reprodutivo , Geografia , Humanos , Desequilíbrio de Ligação/genética , População , Grupos Populacionais/genética , PortugalRESUMO
Obesity is associated with myocardial insulin resistance and impairment of the mammalian target of rapamycin (mTOR) signaling pathway. The activation of the mTOR cascade by exercise has been largely shown in skeletal muscle, but insufficiently analyzed in myocardial tissue. In addition, little is known regarding the mTOR upstream molecules in the hearts of obese animals and even less about the role of exercise in this process. Thus, the present study was aimed to evaluate the effects of physical exercise on P38 Mitogen-Activated Protein Kinase (P38MAPK) phosphorylation and the REDD1 (regulated in development and DNA damage responses 1) and 14-3-3 protein levels in the myocardium of diet-induced obesity (DIO) rats. After achievement of DIO and insulin resistance, Wistar rats were divided in 2 groups: sedentary obese rats and obese rats performed treadmill running (50-min/day, 5 days per week velocity of 1.0 km/h for 2 months). Forty-eight hours after the final physical exercise, the rats were killed, and the myocardial tissue was removed for Western blot analysis. DIO increased the REDD1 protein levels and reduced the 14-3-3 protein levels and P38MAPK, mTOR, P70S6k (p70 ribosomal S6 protein kinase), and 4EBP1 (4E-binding protein-1) phosphorylation. Interestingly, physical exercise reduced the REDD1 protein levels and increased the 14-3-3 protein levels and P38MAPK, mTOR, P70S6k, and 4EBP1 phosphorylation. Moreover, exercise increased the REDD1/14-3-3 association in the heart. Our results indicate that the phospho-P38MAPK, REDD1, and 14-3-3 protein levels were reduced in the myocardium of obese rats and that physical exercise increased the protein levels of these molecules.
Assuntos
Proteínas 14-3-3/metabolismo , Terapia por Exercício , Miocárdio/metabolismo , Obesidade/metabolismo , Obesidade/terapia , Ratos Wistar/metabolismo , Proteínas Repressoras/metabolismo , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo , Proteínas 14-3-3/genética , Animais , Dieta Hiperlipídica/efeitos adversos , Humanos , Insulina/metabolismo , Masculino , Músculo Esquelético/metabolismo , Obesidade/etiologia , Obesidade/genética , Ratos , Ratos Wistar/genética , Proteínas Repressoras/genética , Proteínas Quinases S6 Ribossômicas 70-kDa/metabolismo , Transdução de Sinais , Serina-Treonina Quinases TOR/genética , Serina-Treonina Quinases TOR/metabolismo , Fatores de Transcrição , Proteínas Quinases p38 Ativadas por Mitógeno/genéticaRESUMO
Chromoblastomycosis (CBM) is a chronic, suppurative, granulomatous mycosis of the skin and subcutaneous tissues. The aim of this study was to evaluate the association between IgG antibody levels and the severity of CBM and therapeutic response of patients to itraconazole. A longitudinal study was conducted in patients with CBM due to Fonsecaea pedrosoi and in healthy subjects with chromomycin skin test (CST)+. The dosage of anti-F. pedrosoi IgG antibody performed in 47 healthy individuals with CST+ showed positivity in 97.5 %, with an average titer of 2,109 [standard deviation (SD) + 3,676)] and a mean optical density (OD) of 1.174 (SD + 0.456), showing positive correlation with the induration area of the CST (mm(2)). The level of antibodies in 55 patients with CBM expressed in OD and titration showed that, before treatment, patients with severe disease had higher levels of IgG, IgG1, IgG2, and IgG3 when compared with moderate or mild disease (p < 0.05). According to the time of treatment, the mean antibody titers of IgG, IgG1, and IgG2 were reduced after treatment (p < 0.05). In the assessment of therapeutic response, there was reduction of IgG3 and IgG titers in patients with rapid response (p < 0.05) and IgG2 on rapid and intermediate response (p < 0.05). There was clear evidence of what are the risk factors for exposure to F. pedrosoi in the daily lives of these subjects, with prospects of preventive measures for the target population. The immunological analysis shows that the antibody anti-F. pedrosoi did not exhibit a protective role against infection caused by this agent.