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1.
J Affect Disord ; 366: 106-112, 2024 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-39187197

RESUMO

BACKGROUND: Sex- and age-dependent outcome differences have been observed in treatment of Major Depressive Disorder (MDD), including 10 Hz repetitive Transcranial Magnetic Stimulation (rTMS). We examined whether there are sex- and age-dependent differences in outcome with intermittent Theta Burst Stimulation (iTBS), another rTMS protocol. METHODS: The relationship between biological sex, age, and treatment outcome was retrospectively examined among 414 patients with MDD treated with 10 Hz or iTBS rTMS. Linear mixed-effects modeling was used to examine the association between treatment and change in the 30-item Inventory of Depressive Symptomatology Self-Report (IDS-SR30) score from baseline to treatments 10 and 30, with biological sex (M/F), protocol (iTBS/10 Hz), age (≥/<50 years old), and time (treatment 1/10/30) included as fixed effects. The three-way sex-protocol-time and age-protocol-time interactions were used to determine any differential relationships between protocol and outcome dependent on sex and age. Post-hoc t-tests were conducted to examine differences in improvement. RESULTS: There was a significant three-way sex-protocol-time interaction at treatments 10 (p = 0.016) and 30 (p = 0.031). Males showed significantly greater improvement with iTBS than females at treatments 10 (p = 0.041) and 30 (p = 0.035), while females showed numerically greater improvement with 10 Hz treatment. While there was not a significant three-way age-protocol-time interaction, there was a significant interaction between age (≥50 years old) and time at treatments 10 (p = 0.007) and 30 (p = 0.042), and among age, sex, and time at treatment 30 (p = 0.028). LIMITATIONS: Retrospective naturalistic treatment protocol. CONCLUSIONS: iTBS appeared less efficacious in females than in males, and rTMS overall was more efficacious in patients over fifty, particularly females.


Assuntos
Transtorno Depressivo Maior , Estimulação Magnética Transcraniana , Humanos , Transtorno Depressivo Maior/terapia , Estimulação Magnética Transcraniana/métodos , Masculino , Feminino , Pessoa de Meia-Idade , Adulto , Fatores Sexuais , Fatores Etários , Estudos Retrospectivos , Resultado do Tratamento , Idoso
3.
BMJ Open ; 14(5): e082228, 2024 05 22.
Artigo em Inglês | MEDLINE | ID: mdl-38777587

RESUMO

OBJECTIVE: Hospitalisation due to medication-related problems is a major health concern, particularly for those with pre-existing, or those at high risk of developing cardiovascular disease (CVD). Postdischarge medication reviews (PDMRs) may form a core component of reducing hospital readmissions due to medication-related problems. This study aimed to explore postdischarge CVD patients' perspectives of, and experiences with, pharmacist-led medication management services. A secondary aim explored attitudes towards the availability of PDMRs. DESIGN: An interpretative qualitative study involving 16 semistructured interviews. Data were analysed using an inductive thematic approach. SETTING: Patients with CVD discharged to a community setting from the John Hunter Hospital, an 820-bed tertiary referral hospital based in New South Wales, Australia. PARTICIPANTS: Patients with pre-existing or newly diagnosed CVD who were recently discharged from the hospital. RESULTS: A total of 16 interviews were conducted to reach thematic saturation. Nine participants (56%) were male. The mean age of participants was 57.5 (±13.2) years. Three emergent themes were identified: (1) poor medication understanding impacts transition from the hospital to home; (2) factors influencing medication concordance following discharge and (3) perceived benefits of routine PDMRs. CONCLUSIONS: There is a clear need to further improve the quality use of medicines and health literacy of transition-of-care patients with CVD. Our findings indicate that the engagement of transition-of-care patients with CVD with pharmacist-led medication management services is minimal. Pharmacists are suitable to provide essential and tailored medication review services to patients with CVD as part of a multidisciplinary healthcare team. The implementation of routine, pharmacist-led PDMRs may be a feasible means of providing patients with access to health education following their transition from hospital back to community, improving their health literacy and reducing rehospitalisations due to medication-related issues.


Assuntos
Doenças Cardiovasculares , Alta do Paciente , Farmacêuticos , Pesquisa Qualitativa , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Doenças Cardiovasculares/tratamento farmacológico , Idoso , New South Wales , Conduta do Tratamento Medicamentoso/organização & administração , Adulto , Entrevistas como Assunto , Papel Profissional , Adesão à Medicação
4.
J Allergy Clin Immunol ; 154(1): 209-221.e6, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38513838

RESUMO

BACKGROUND: Millions of people are exposed to landscape fire smoke (LFS) globally, and inhalation of LFS particulate matter (PM) is associated with poor respiratory and cardiovascular outcomes. However, how LFS affects respiratory and cardiovascular function is less well understood. OBJECTIVE: We aimed to characterize the pathophysiologic effects of representative LFS airway exposure on respiratory and cardiac function and on asthma outcomes. METHODS: LFS was generated using a customized combustion chamber. In 8-week-old female BALB/c mice, low (25 µg/m3, 24-hour equivalent) or moderate (100 µg/m3, 24-hour equivalent) concentrations of LFS PM (10 µm and below [PM10]) were administered daily for 3 (short-term) and 14 (long-term) days in the presence and absence of experimental asthma. Lung inflammation, gene expression, structural changes, and lung function were assessed. In 8-week-old male C57BL/6 mice, low concentrations of LFS PM10 were administered for 3 days. Cardiac function and gene expression were assessed. RESULTS: Short- and long-term LFS PM10 airway exposure increased airway hyperresponsiveness and induced steroid insensitivity in experimental asthma, independent of significant changes in airway inflammation. Long-term LFS PM10 airway exposure also decreased gas diffusion. Short-term LFS PM10 airway exposure decreased cardiac function and expression of gene changes relating to oxidative stress and cardiovascular pathologies. CONCLUSIONS: We characterized significant detrimental effects of physiologically relevant concentrations and durations of LFS PM10 airway exposure on lung and heart function. Our study provides a platform for assessment of mechanisms that underpin LFS PM10 airway exposure on respiratory and cardiovascular disease outcomes.


Assuntos
Asma , Camundongos Endogâmicos BALB C , Material Particulado , Fumaça , Animais , Feminino , Fumaça/efeitos adversos , Asma/fisiopatologia , Asma/etiologia , Masculino , Camundongos , Material Particulado/efeitos adversos , Camundongos Endogâmicos C57BL , Pulmão/imunologia , Pulmão/fisiopatologia , Incêndios Florestais , Modelos Animais de Doenças
5.
Heart Lung Circ ; 33(5): 564-575, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38336544

RESUMO

Over 18 million people worldwide were diagnosed with cancer in 2020, including over 150,000 people in Australia. Although improved early detection and treatment have increased the survival rates, cardiotoxic treatment and inadequate management of cardiovascular risk factors have resulted in cardiovascular disease (CVD) being one of the leading causes of non-cancer-related death and disability among cancer survivors. International guidelines outline the standards of care for CVD risk surveillance and management. However, Australian cardio-oncology policies and clinical guidelines are limited. There is increasing growth of cardio-oncology research in Australia and support from leading Australian professional bodies and advocacy and research networks, including the Cardiac Society of Australia and New Zealand, the Clinical Oncology Society of Australia, the National Heart Foundation of Australia, and the Australian Cardiovascular Alliance (ACvA). Thus, opportunities to drive multidisciplinary cardio-oncology initiatives are growing, including grant funding, position statements, and novel research to inform new policies. The ACvA has a unique flagship structure that spans the translational research pipeline from drug discovery to implementation science. This article aims to highlight how multidisciplinary cardio-oncology innovations could intersect with the seven ACvA flagships, and to showcase Australian achievements in cardio-oncology thus far. We summarise eight key priority areas for future cardio-oncology research that emerged. These strategies will strengthen cardio-oncology research and care in Australia, and drive new guidelines, policies, and government initiatives to ensure equity in health outcomes for all cardio-oncology patients.


Assuntos
Cardiologia , Doenças Cardiovasculares , Oncologia , Humanos , Austrália/epidemiologia , Doenças Cardiovasculares/terapia , Doenças Cardiovasculares/epidemiologia , Oncologia/organização & administração , Oncologia/normas , Cardiologia/normas , Neoplasias/terapia , Neoplasias/complicações , Pesquisa Biomédica , Cardio-Oncologia
6.
Heart Lung Circ ; 33(5): 747-752, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38365500

RESUMO

BACKGROUND: Increased cancer survivorship represents a remarkable achievement for modern medicine. Unfortunately, cancer treatments have inadvertently contributed to cardiovascular (CV) damage, significantly threatening the health and quality of life of patients living with, through and beyond cancer. Without understanding the mechanisms, including whether the cardiotoxicity is due to the direct or indirect effects on cardiomyocytes, prevention and management of cardiotoxicity can pose challenges in many patients. To date, the cardiotoxicity profiles of most of the chemotherapy drugs are still poorly understood. AIM: To conduct a pilot study to investigate the direct effects of a range of cancer therapies on cardiomyocyte viability. METHODS: Primary human cardiomyocytes (HCM) were cultured and seeded into 96-well culture plates. A total of 35 different Food and Drug Administration-approved anti-cancer drugs were added to the HCM cells with a concentration of 1uM for 72 hours. The viability of HCMs was determined using CellTitre-Glo. The experiments were repeated at least three times for each drug with HCMs of different passages. RESULTS: We identified 15 anti-cancer agents that significantly reduced HCM viability. These drugs were: (1) anthracyclines (daunorubicin [HCM viability, mean %±standard error, 13.7±3.2%], epirubicin [47.6±5.3%]), (2) antimetabolite (azacitidine [67.1±2.4%]), (3) taxanes (paclitaxel [60.2±3.0%]), (4) protein kinase inhibitors (lapatinib [49.8±7.0%], ponatinib [42.4±9.0%], pemigatinib [68.1±2.3%], sorafenib [52.9±10.6%], nilotinib [64.4±4.5%], dasatinib [38.5±3.6%]), (5) proteasome inhibitors (ixazomib citrate [65.4±7.2%]), (6) non-selective histone-deacetylase inhibitor (panobinostat [19.1±4.1%]), poly adenosine diphosphate-ribose polymerase inhibitor (olaparib [68.2±1.7%]) and (7) vinca alkaloids (vincristine [44.6±7.4%], vinblastine [31.2±3.9%]). CONCLUSIONS: In total, 15 of the 35 commercially available anti-cancer drugs have direct cardiotoxic effects on HCM. Some of those, have not been associated with clinical cardiotoxicity, while others, known to be cardiotoxic do not appear to mediate it via direct effects on cardiomyocytes. More detailed investigations of the effects of cancer therapies on various cardiovascular cells should be performed to comprehensively determine the mechanisms of cardiotoxicity.


Assuntos
Antineoplásicos , Cardiotoxicidade , Sobrevivência Celular , Miócitos Cardíacos , Humanos , Miócitos Cardíacos/efeitos dos fármacos , Antineoplásicos/toxicidade , Antineoplásicos/efeitos adversos , Antineoplásicos/farmacologia , Sobrevivência Celular/efeitos dos fármacos , Cardiotoxicidade/etiologia , Neoplasias/tratamento farmacológico , Células Cultivadas , Projetos Piloto , Feminino
7.
Am J Physiol Heart Circ Physiol ; 326(5): H1219-H1251, 2024 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-38363215

RESUMO

Sex-based differences in the development of obesity-induced cardiometabolic dysfunction are well documented, however, the specific mechanisms are not completely understood. Obesity has been linked to dysregulation of the epitranscriptome, but the role of N6-methyladenosine (m6A) RNA methylation has not been investigated in relation to the sex differences during obesity-induced cardiac dysfunction. In the current study, male and female C57BL/6J mice were subjected to short- and long-term high-fat/high-sucrose (HFHS) diet to induce obesogenic stress. Cardiac echocardiography showed males developed systolic and diastolic dysfunction after 4 mo of diet, but females maintained normal cardiac function despite both sexes being metabolically dysfunctional. Cardiac m6A machinery gene expression was differentially regulated by duration of HFHS diet in male, but not female mice, and left ventricular ejection fraction correlated with RNA machinery gene levels in a sex- and age-dependent manner. RNA-sequencing of cardiac transcriptome revealed that females, but not males may undergo protective cardiac remodeling early in the course of obesogenic stress. Taken together, our study demonstrates for the first time that cardiac RNA methylation machinery genes are regulated early during obesogenic stress in a sex-dependent manner and may play a role in the sex differences observed in cardiometabolic dysfunction.NEW & NOTEWORTHY Sex differences in obesity-associated cardiomyopathy are well documented but incompletely understood. We show for the first time that RNA methylation machinery genes may be regulated in response to obesogenic diet in a sex- and age-dependent manner and levels may correspond to cardiac systolic function. Our cardiac RNA-seq analysis suggests female, but not male mice may be protected from cardiac dysfunction by a protective cardiac remodeling response early during obesogenic stress.


Assuntos
Adenosina/análogos & derivados , Dieta Hiperlipídica , Camundongos Endogâmicos C57BL , Obesidade , Animais , Feminino , Masculino , Fatores Sexuais , Obesidade/metabolismo , Obesidade/genética , Obesidade/fisiopatologia , Função Ventricular Esquerda , Camundongos , Remodelação Ventricular , Adenosina/metabolismo , Cardiopatias/metabolismo , Cardiopatias/genética , Cardiopatias/etiologia , Cardiopatias/fisiopatologia , Fatores de Tempo , Modelos Animais de Doenças , Miocárdio/metabolismo , Transcriptoma , Disfunção Ventricular Esquerda/fisiopatologia , Disfunção Ventricular Esquerda/metabolismo , Disfunção Ventricular Esquerda/genética , Disfunção Ventricular Esquerda/etiologia
8.
Heliyon ; 10(4): e25920, 2024 Feb 29.
Artigo em Inglês | MEDLINE | ID: mdl-38384501

RESUMO

Background: Subdural hematoma following spinal anesthesia for cesarean delivery is a rare complication. Surgical removal of the hematoma is the standard treatment. However, there are still many patients who suffer permanent nerve damage of varying degrees after surgery. Cell therapy has recently shown great potential for treating nerve damage. Case presentation: This report described a case of paraplegia due to an epidural hematoma occurring after spinal anesthesia for cesarean section. The patient underwent surgery to remove the hematoma and rehabilitation afterward. However, no improvement was noted. Paralysis of the lower extremities associated with urinary retention and constipation persisted. The patient received three administrations of cell infusion: the first time with autologous bone marrow-derived mononuclear cells and the following two with autologous adipose mesenchymal/stromal cells. After three cell infusions, the patient was able to walk and could urinate and defecate voluntarily. Sensory and motor function were improved and MRI showed a decrease in adherence of the nerve roots and spinal cord. Conclusions: Our results demonstrated that cell therapy may ameliorate paralysis of the lower extremities as well as fecal and urinary function following spinal hematoma associated with spinal anesthesia.

10.
Cerebellum ; 2023 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-37864649

RESUMO

There are insufficient treatment options available for recovery related to cerebellar ataxia. Limited data using repetitive transcranial magnetic stimulation (rTMS) have demonstrated reduction of symptom burden, though associated with nonuniform cerebellar ataxia etiologies and differing rTMS treatment protocols. Additionally, there are limited available data for use of rTMS in individuals suffering from stroke-related symptoms. We present the case of a patient with chronic cerebellar ataxia following a hemorrhagic stroke who underwent inhibitory rTMS to bilateral cerebellar targets with demonstrated improvement in symptoms.

11.
Brain Stimul ; 16(6): 1566-1571, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37863389

RESUMO

BACKGROUND: Repetitive Transcranial Magnetic Stimulation (rTMS) is an effective treatment for Major Depressive Disorder (MDD). Two common rTMS protocols, 10 Hz and intermittent theta burst stimulation (iTBS), have comparable rates of efficacy in groups of patients. Recent evidence suggests that some individuals may be more likely to benefit from one form of stimulation than the other. The pretreatment pupillary light reflex (PLR) is significantly associated with response to a full course of rTMS using heterogeneous stimulation protocols. OBJECTIVE: To test whether the relationship between pretreatment PLR and early symptom improvement differed between subjects treated with iTBS or 10 Hz stimulation. METHODS: PLR was measured in 52 subjects who received solely 10 Hz (n = 35) or iTBS (n = 17) to left dorsolateral prefrontal cortex (DLPFC) for the first ten sessions of their treatment course. Primary outcome measure was the percent change of Inventory of Depressive Symptomatology - Self Report (IDS-SR) from session 1 to session 10. RESULTS: There was a positive association between normalized maximum constriction velocity (nMCV) and early improvement in subjects receiving 10 Hz stimulation (R = 0.48, p = 0.004) and a negative association in subjects receiving iTBS (R = -0.52, p = 0.03). ANOVA revealed a significant interaction between nMCV and the type of initial stimulation (p = 0.001). Among subjects with low nMCV, those initially treated with iTBS showed 2.6 times greater improvement after 10 sessions (p = 0.01) than subjects initially receiving 10 Hz stimulation. CONCLUSION: nMCV may detect physiologic differences between those likely to benefit from 10 Hz or iTBS treatment. Future studies should examine whether PLR could guide prospective treatment selection.


Assuntos
Transtorno Depressivo Maior , Humanos , Transtorno Depressivo Maior/terapia , Transtorno Depressivo Maior/diagnóstico , Estimulação Magnética Transcraniana/métodos , Córtex Pré-Frontal/fisiologia , Resultado do Tratamento , Autorrelato
12.
Sci Rep ; 13(1): 14995, 2023 09 11.
Artigo em Inglês | MEDLINE | ID: mdl-37696945

RESUMO

Despite the high prevalence of heart failure in the western world, there are few effective treatments. Fibulin-3 is a protein involved in extracellular matrix (ECM) structural integrity, however its role in the heart is unknown. We have demonstrated, using single cell RNA-seq, that fibulin-3 was highly expressed in quiescent murine cardiac fibroblasts, with expression highest prior to injury and late post-infarct (from ~ day-28 to week-8). In humans, fibulin-3 was upregulated in left ventricular tissue and plasma of heart failure patients. Fibulin-3 knockout (Efemp1-/-) and wildtype mice were subjected to experimental myocardial infarction. Fibulin-3 deletion resulted in significantly higher rate of cardiac rupture days 3-6 post-infarct, indicating a weak and poorly formed scar, with severe ventricular remodelling in surviving mice at day-28 post-infarct. Fibulin-3 knockout mice demonstrated less collagen deposition at day-3 post-infarct, with abnormal collagen fibre-alignment. RNA-seq on day-3 infarct tissue revealed upregulation of ECM degradation and inflammatory genes, but downregulation of ECM assembly/structure/organisation genes in fibulin-3 knockout mice. GSEA pathway analysis showed enrichment of inflammatory pathways and a depletion of ECM organisation pathways. Fibulin-3 originates from cardiac fibroblasts, is upregulated in human heart failure, and is necessary for correct ECM organisation/structural integrity of fibrotic tissue to prevent cardiac rupture post-infarct.


Assuntos
Proteínas da Matriz Extracelular , Insuficiência Cardíaca , Ruptura Cardíaca , Infarto do Miocárdio , Animais , Humanos , Camundongos , Coração , Insuficiência Cardíaca/genética , Ruptura Cardíaca/genética , Infarto do Miocárdio/complicações , Infarto do Miocárdio/genética , Proteínas da Matriz Extracelular/genética
14.
J Cardiovasc Dev Dis ; 10(7)2023 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-37504530

RESUMO

Secreted frizzled-related protein 5 (SFRP5) is a novel anti-inflammatory adipokine that may play a role in cardiovascular development and disease. However, there is yet to be a comprehensive investigation into whether circulating SFRP5 can be a biomarker for cardiac function. Plasma SFRP5 levels were measured via ELISA in 262 patients admitted to a cardiology unit. Plasma SFRP5 levels were significantly lower in patients with a history of heart failure (HF), coronary artery disease (CAD), and atrial fibrillation (AF; p = 0.001). In univariate analyses, SFRP5 levels were also significantly positively correlated with left ventricular ejection fraction (LVEF) (r = 0.52, p < 0.001) and negatively correlated with E/E' (r = -0.30, p < 0.001). Patients with HF, CAD, low LVEF, low triglycerides, high CRP, and high eGFR were associated with lower SFRP5 levels independent of age, BMI, or diabetes after multivariate analysis (overall model r = 0.729, SE = 0.638). Our results show that low plasma SFRP5 levels are independently associated with the presence of HF, CAD, and, importantly, impaired LV function. These results suggest a potential role of SFRP5 as a biomarker, as well as a mediator of cardiac dysfunction independent of obesity and metabolic regulation.

15.
J Affect Disord ; 339: 412-417, 2023 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-37437737

RESUMO

BACKGROUND: Pre-treatment biomarkers for outcome of repetitive Transcranial Magnetic Stimulation (rTMS) treatment of Major Depressive Disorder (MDD) have proven elusive. One promising family of biomarkers involves the autonomic nervous system (ANS), which is dysregulated in individuals with MDD. METHODS: We examined the relationship between the pre-treatment pupillary light reflex (PLR) and rTMS outcome in 51 MDD patients. Outcome was measured as the percent change in the 30-item Inventory of Depressive Symptomatology Self Rated (IDS-SR) score from baseline to treatment 30. RESULTS: Patients showed significant improvement with rTMS treatment. There was a significant correlation between baseline pupillary Constriction Amplitude (CA) and clinical improvement over the treatment course (R = 0.41, p = 0.003). LIMITATIONS: We examined a limited number of subjects who received heterogeneous treatment protocols. Almost all patients in the study received psychotropic medications concomitant with rTMS treatment. CONCLUSION: PLR measured before treatment may be a predictive biomarker for clinical improvement from rTMS in subjects with MDD.

16.
Front Cardiovasc Med ; 10: 1144240, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37180785

RESUMO

Background: Cancer and heart disease are the two most common health conditions in the world, associated with high morbidity and mortality, with even worse outcomes in regional areas. Cardiovascular disease is the leading cause of death in cancer survivors. We aimed to evaluate the cardiovascular outcomes of patients receiving cancer treatment (CT) in a regional hospital. Methods: This was an observational retrospective cohort study in a single rural hospital over a ten-year period (17th February 2010 to 19th March 2019). Outcomes of all patients receiving CT during this period were compared to those who were admitted to the hospital without a cancer diagnosis. Results: 268 patients received CT during the study period. High rates of cardiovascular risk factors: hypertension (52.2%), smoking (54.9%), and dyslipidaemia (38.4%) were observed in the CT group. Patients who had CT were more likely to be readmitted with ACS (5.9% vs. 2.8% p = 0.005) and AF (8.2% vs. 4.5% p = 0.006) when compared to the general admission cohort. There was a statistically significant difference observed for all cause cardiac readmission, with a higher rate observed in the CT group (17.1% vs. 13.2% p = 0.042). Patients undergoing CT had a higher rate of mortality (49.5% vs. 10.2%, p ≤ 0.001) and shorter time (days) from first admission to death (401.06 vs. 994.91, p ≤ 0.001) when compared to the general admission cohort, acknowledging this reduction in survival may be driven at least in part by the cancer itself. Conclusion: There is an increased incidence of adverse cardiovascular outcomes, including higher readmission rate, higher mortality rate and shorter survival in people undergoing cancer treatment in rural environments. Rural cancer patients demonstrated a high burden of cardiovascular risk factors.

17.
Antioxidants (Basel) ; 12(5)2023 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-37238003

RESUMO

Obesity is associated with significant metabolic co-morbidities, such as diabetes, hypertension, and dyslipidaemia, as well as a range of cardiovascular diseases, all of which lead to increased hospitalisations, morbidity, and mortality. Adipose tissue dysfunction caused by chronic nutrient stress can result in oxidative stress, mitochondrial dysfunction, inflammation, hypoxia, and insulin resistance. Thus, we hypothesised that reducing adipose tissue oxidative stress via adipose tissue-targeted overexpression of the antioxidant mitochondrial catalase (mCAT) may improve systemic metabolic function. We crossed mCAT (floxed) and Adipoq-Cre mice to generate mice overexpressing catalase with a mitochondrial targeting sequence predominantly in adipose tissue, designated AdipoQ-mCAT. Under normal diet conditions, the AdipoQ-mCAT transgenic mice demonstrated increased weight gain, adipocyte remodelling, and metabolic dysfunction compared to the wild-type mice. Under obesogenic dietary conditions (16 weeks of high fat/high sucrose feeding), the AdipoQ-mCAT mice did not result in incremental impairment of adipose structure and function but in fact, were protected from further metabolic impairment compared to the obese wild-type mice. While AdipoQ-mCAT overexpression was unable to improve systemic metabolic function per se, our results highlight the critical role of physiological H2O2 signalling in metabolism and adipose tissue function.

18.
J Clin Med ; 12(8)2023 Apr 09.
Artigo em Inglês | MEDLINE | ID: mdl-37109127

RESUMO

The role of soluble suppression of tumorigenicity (sST2) as a biomarker in predicting clinical outcomes in patients with cardiovascular diseases (CVD) has not been fully elucidated. In this study, we sought to determine the relationship between sST2 levels and any unplanned hospital readmissions due to a major adverse cardiovascular event (MACE) within 1 year of first admission. Patients (n = 250) admitted to the cardiology unit at John Hunter Hospital were recruited. Occurrences of MACE, defined as the composite of total death, myocardial infarction (MI), stroke, readmissions for heart failure (HF), or coronary revascularization, were recorded after 30, 90, 180, and 365 days of first admission. On univariate analysis, patients with atrial fibrillation (AF) and HF had significantly higher sST2 levels vs. those who did not. Increasing levels of sST2 by quartiles were significantly associated with AF, HF, older age, low hemoglobin, low eGFR, and high CRP levels. On multivariate analysis: high sST2 levels and diabetes remained as risk predictors of any MACE occurrence; an sST2 level in the highest quartile (Q4: >28.4 ng/mL) was independently associated with older age, use of beta-blockers, and number of MACE events within a 1 year period. In this patient cohort, elevated sST2 levels are associated with unplanned hospital admission due to MACE within 1 year, independent of the nature of the index cardiovascular admission.

19.
Stem Cell Res Ther ; 14(1): 115, 2023 04 28.
Artigo em Inglês | MEDLINE | ID: mdl-37118832

RESUMO

BACKGROUND: To evaluate the safety and efficacy of autologous bone marrow mononuclear cell (BMMNC) infusion in the management of neurological sequelae in children with spina bifida (SB). METHODS: BMMNCs were harvested from bilateral anterior iliac crests. Two intrathecal BMMNC administrations were performed with an interval of 6 months. The measurements of outcomes included clinical assessments, cystomanometry and rectomanometry. RESULTS: Eleven children with SB underwent autologous BMMNC infusions from 2016 to 2020. There were no severe adverse events during the study period. The number of patients requiring assistance to expel stools decreased from 11 before cell infusion to 3 after the second cell infusion. The number of patients who had urine leakage decreased from 9 patients at baseline to 3 patients after the second BMMNC infusion. The mean bladder capacity increased from 127.7 ± 59.2 ml at baseline to 136.3 ± 54.8 ml at six months and to 158.3 ± 56.2 ml at 12 months after BMMNC infusions. Detrusor pressure (pdet) decreased from 32.4 ± 22.0 cm H2O at baseline to 21.9 ± 11.8 cm H2O after 12 months of follow-up. At baseline, six patients could walk independently. After the 2nd infusion, eight patients could walk independently. CONCLUSION: Intrathecal infusions of autologous bone marrow mononuclear cells are safe and may improve bowel, bladder, and motor function in children with SB. TRIAL REGISTRATION: NCT, NCT05472428. Registered July 25, 2022- Retrospectively registered, https://www. CLINICALTRIALS: gov/ct2/show/NCT05472428 .


Assuntos
Medula Óssea , Disrafismo Espinal , Humanos , Criança , Bexiga Urinária , Transplante de Medula Óssea , Disrafismo Espinal/complicações , Disrafismo Espinal/terapia
20.
Hypertension ; 80(4): 685-710, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36756872

RESUMO

Cardiovascular disease and cancer are 2 of the leading causes of death worldwide. Although improvements in outcomes have been noted for both disease entities, the success of cancer therapies has come at the cost of at times very impactful adverse events such as cardiovascular events. Hypertension has been noted as both, a side effect as well as a risk factor for the cardiotoxicity of cancer therapies. Some of these dynamics are in keeping with the role of hypertension as a cardiovascular risk factor not only for heart failure, but also for the development of coronary and cerebrovascular disease, and kidney disease and its association with a higher morbidity and mortality overall. Other aspects such as the molecular mechanisms underlying the amplification of acute and long-term cardiotoxicity risk of anthracyclines and increase in blood pressure with various cancer therapeutics remain to be elucidated. In this review, we cover the latest clinical data regarding the risk of hypertension across a spectrum of novel anticancer therapies as well as the underlying known or postulated pathophysiological mechanisms. Furthermore, we review the acute and long-term implications for the amplification of the development of cardiotoxicity with drugs not commonly associated with hypertension such as anthracyclines. An outline of management strategies, including pharmacological and lifestyle interventions as well as models of care aimed to facilitate early detection and more timely management of hypertension in patients with cancer and survivors concludes this review, which overall aims to improve both cardiovascular and cancer-specific outcomes.


Assuntos
Antineoplásicos , Doenças Cardiovasculares , Sistema Cardiovascular , Hipertensão , Neoplasias , Humanos , Cardiotoxicidade/etiologia , Cardiotoxicidade/diagnóstico , Cardiotoxicidade/tratamento farmacológico , Detecção Precoce de Câncer/efeitos adversos , Doenças Cardiovasculares/complicações , Hipertensão/complicações , Neoplasias/complicações , Neoplasias/tratamento farmacológico , Antraciclinas/efeitos adversos , Antineoplásicos/efeitos adversos
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