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1.
J Cardiothorac Surg ; 19(1): 479, 2024 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-39090642

RESUMO

BACKGROUND: Atrial fibrillation (AF) is the most common complication after Coronary Artery Bypass Surgery (CABG). Despite advanced treatment methods, primary prevention is crucial. Many factors have been investigated as markers for AF, but further research is required. CABG is currently superior to Primary Coronary Intervention (PCI) in some cases due to Left Anterior Descending Artery (LAD)- Internal Thoracic Artery (ITA) anastomosis. However, graft choice for non-LAD vessels is still controversial. Our study compared the incidence of arrhythmia between patients with single ITA or bilateral ITA (BITA). METHODS: The study included 84 isolated CABG patients. The patients were divided into two groups: single ITA and BITA. Patients who developed AF were recorded and compared. RESULTS: 73.8%(n = 62) of the patients were male and 26.2%(n = 22) were female. While single ITA was used in 48.8%(n = 41) of the patients, BITA was used in 51.2%(n = 43). AF was detected in 15.5%(n = 13) of the patients. AF was observed in 5(12.2%) patients in the single ITA group and 8(18.6%) in the BITA group. 76.9%(n = 10) of the patients with AF rhythm had Diabetes Mellitus (DM)(p = 0.011). Biphasic P wave, length of P wave duration, and total Morpholog-Voltage-P Wave ECG (MVP ECG) score height were statistically significantly different. CONCLUSIONS: The development of AF was similar in both groups. The presence of DM, high blood glucose levels, and ECG findings can detect a predisposition to postoperative AF. MVP ECG risk score is effective as an AF marker and can be used in surgical patient groups.


Assuntos
Fibrilação Atrial , Eletrocardiografia , Artéria Torácica Interna , Humanos , Fibrilação Atrial/fisiopatologia , Fibrilação Atrial/cirurgia , Feminino , Masculino , Pessoa de Meia-Idade , Idoso , Artéria Torácica Interna/transplante , Complicações Pós-Operatórias/epidemiologia , Ponte de Artéria Coronária/efeitos adversos , Ponte de Artéria Coronária/métodos , Fatores de Risco , Medição de Risco/métodos , Estudos Retrospectivos , Doença da Artéria Coronariana/cirurgia , Incidência
2.
J Res Nurs ; 29(3): 216-225, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38883253

RESUMO

Background: Home care patients experience great difficulty in fulfilling their daily activities. One of these difficulties is related to urinary excretion. It is necessary for individuals to possess self-efficacy as well as self-confidence in order to be able to perform self-administered clean intermittent catheterisation (CIC). Aims: The present study aims to determine the relationship between the self-confidence and self-efficacy of home care patients in CIC. Method: The data were collected from patients receiving home care services from a hospital in eastern Turkey between November 2022 and February 2023. The study data were collected online via google forms. No sample selection was made and the entire population was included in the study (372). The study was completed with 240 patients. Results: A significant positive correlation was found between the scores obtained from the self-confidence and self-efficacy inventories for CIC. It was found that the self-efficacy total score had an effect size of 66% on self-confidence inventories for CIC. In addition, age, education level and working status also affect self-efficacy. Conclusions: In the present study, it was concluded that the level of self-confidence affects the level of self-efficacy in self-catheterisation. The success rate of catheterisation increases in parallel with self-confidence.

3.
iScience ; 27(6): 110018, 2024 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-38883818

RESUMO

The murine embryonic diaphragm is a primary model for studying myogenesis and neuro-muscular synaptogenesis, both representing processes regulated by spatially organized genetic programs of myonuclei located in distinct myodomains. However, a spatial gene expression pattern of embryonic mouse diaphragm has not been reported. Here, we provide spatially resolved gene expression data for horizontally sectioned embryonic mouse diaphragms at embryonic days E14.5 and E18.5. These data reveal gene signatures for specific muscle regions with distinct maturity and fiber type composition, as well as for a central neuromuscular junction (NMJ) and a peripheral myotendinous junction (MTJ) compartment. Comparing spatial expression patterns of wild-type mice with those of transgenic mice lacking either the skeletal muscle calcium channel CaV1.1 or ß-catenin, reveals curtailed muscle development and dysregulated expression of genes potentially involved in NMJ formation. Altogether, these datasets provide a powerful resource for further studies of muscle development and NMJ formation in the mouse.

4.
Drug Chem Toxicol ; : 1-8, 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38726980

RESUMO

The neurodegenerative mechanisms of Alzheimer's disease (AD) are not fully understood, but it is believed that amyloid beta (Aß) peptide causes oxidative stress, neuroinflammation, and disrupts metabotropic glutamate receptor 5 (mGluR5) signaling by interacting with cholesterol and caveolin-1 (Cav-1) in pathogenic lipid rafts. This study examined the effect of 2-hydroxypropyl-ß-cyclodextrin (HP-CD) on cholesterol, oxidative stress (total oxidant status), neuroinflammation (TNF-α), and mGluR5 signaling molecules such as PKCß1, PKCß2, ERK1/2, CREB, BDNF, and NGF in Aß (1-42)-induced neurotoxicity. The Sprague-Dawley rats were divided into four groups: control (saline), Aß (1-42), HP-CD (100 mg/kg), and Aß (1-42) + HP-CD (100 mg/kg). All groups received bilateral stereotaxic injections of Aß (1-42) or saline into the hippocampus. After surgery, HP-CD was administered intraperitoneally (ip) for 7 days. Cholesterol, TNF-α, and TOS levels were measured in synaptosomes isolated from hippocampus tissue using spectrophotometry, fluorometry, and enzyme immunoassay, respectively. The gene expressions of Cav-1, mGluR5, PKCß1, PKCß2, ERK1/2, CREB, BDNF, and NGF in hippocampus tissue were evaluated using reverse transcription PCR after real-time PCR analysis. Treatment with Aß (1-42) significantly elevated cholesterol, TOS, TNF-α, Cav-1, PKCß2, and ERK1/2 levels. Additionally, mGluR5, CREB, and BDNF levels were shown to be lowered. HP-CD reduced cholesterol, TOS, and TNF-α levels while increasing mGluR5, CREB, and BDNF in response to Aß (1-42) treatment. These findings indicate that HP-CD may have neuroprotective activity due to the decreased levels of cholesterol, oxidative stress, and neuroinflammation, as well as upregulated levels of mGluR5, CREB, and BDNF.

5.
J Cardiothorac Surg ; 19(1): 114, 2024 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-38468271

RESUMO

Prosthetic valve thrombosis (PVT) in aortic valve and its complication coronary embolism is a very rare condition. Diagnosis and treatment process is challenging. We present a young patient with acute myocardial infarction who underwent mechanical aortic valve replacement (AVR) operation one month earlier. Percutaneous coronary intervention was performed and it was succesful. Transeasophageal ecocardiography (TEE) was performed. Thrombus was seen on the mechanical aortic valve and thrombolytic therapy was initiated. Control TEE was performed and there was no signs of thrombi. The patient was discharged healthfully with anticoagulant and antiaggregan.


Assuntos
Doença da Artéria Coronariana , Embolia , Doenças das Valvas Cardíacas , Próteses Valvulares Cardíacas , Infarto do Miocárdio , Humanos , Valva Aórtica/cirurgia , Infarto do Miocárdio/cirurgia , Infarto do Miocárdio/complicações , Próteses Valvulares Cardíacas/efeitos adversos , Embolia/cirurgia , Embolia/complicações , Doenças das Valvas Cardíacas/cirurgia , Doença da Artéria Coronariana/complicações
6.
Anatol J Cardiol ; 2024 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-38168008

RESUMO

BACKGROUND: Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia worldwide and is associated with an increased risk of thromboembolism, ischemic stroke, impaired quality of life, and mortality. The latest research that shows the prevalence and incidence of AF patients in Türkiye was the Turkish Adults' Heart Disease and Risk Factors study, which included 3,450 patients and collected data until 2006/07.The Turkish Real Life Atrial Fibrillation in Clinical Practice (TRAFFIC) study is planned to present current prevalence data, reveal the reflection of new treatment and risk approaches in our country, and develop new prediction models in terms of outcomes. METHODS: The TRAFFIC study is a national, prospective, multicenter, observational registry. The study aims to collect data from at least 1900 patients diagnosed with atrial fibrillation, with the participation of 40 centers from Türkiye. The following data will be collected from patients: baseline demographic characteristics, medical history, vital signs, symptoms of AF, ECG and echocardiographic findings, CHADS2-VASC2 and HAS-BLED (1-year risk of major bleeding) risk scores, interventional treatments, antithrombotic and antiarrhythmic medications, or other medications used by the patients. For patients who use warfarin, international normalized ratio levels will be monitored. Follow-up data will be collected at 6, 12, 18, and 24 months. Primary endpoints are defined as systemic embolism or major safety endpoints (major bleeding, clinically relevant nonmajor bleeding, and minor bleeding as defined by the International Society on Thrombosis and Hemostasis). The main secondary endpoints include major adverse cardiovascular events (systemic embolism, myocardial infarction, and cardiovascular death), all-cause mortality, and hospitalizations due to all causes or specific reasons. RESULTS: The results of the 12-month follow-up of the study are planned to be shared by the end of 2023. CONCLUSION: The TRAFFIC study will reveal the prevalence and incidence, demographic characteristics, and risk profiles of AF patients in Türkiye. Additionally, it will provide insights into how current treatments are reflected in this population. Furthermore, risk prediction modeling and risk scoring can be conducted for patients with AF.

7.
Inorg Chem ; 63(4): 2257-2267, 2024 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-38221778

RESUMO

Easy-to-synthesize aminoquinoline (AQ) appended naphthoquinone (NQ)-based colorimetric and ratiometric probe (AQNQ) was successfully synthesized in one step with high yield and low cost, and was utilized to supply an effective solution to critical shortcomings encountered in Cu2+ analysis. The structure of AQNQ and its interaction with Cu2+ forming an unusual AQNQ-Cu complex were enlightened with single-crystal X-ray diffraction analysis and different spectroscopic methods. AQNQ-Cu complex is the first Cu2+ containing dinuclear crystal where the octahedral coordination sphere is fulfilled through the coordination of a NQ oxygen atom. AQNQ exhibited long-term stability (more than 1 month), superior probe ability toward Cu2+ with quite fast response (30 s), high selectivity among many ions, and limit of detection of 12.13 ppb that is significantly below the highest amount of Cu2+ allowed in drinking water established by both WHO and EPA. Ratiometric determination of Cu2+ using AQNQ was performed with high recovery and low RSD values for drinking water, tap water, lake water, cherry, and watermelon samples. Colorimetric on-site determination including smartphone and paper strip applications, IMPLICATION, and INHIBIT logic gate applications were successfully carried out. The reversibility and reusability of the response to Cu2+ ions with the paper strip application were examined for the first time.

8.
Spectrochim Acta A Mol Biomol Spectrosc ; 297: 122725, 2023 Sep 05.
Artigo em Inglês | MEDLINE | ID: mdl-37075687

RESUMO

A new near-infrared, spectrophotometric, and colorimetric probe based on a phthalocyanine-containing mercaptoquinoline unit (MQZnPc) has been constructed and utilized for discriminative and highly selective/sensitive detection of Ag+, Cu2+, and Hg2+ ions by using proper masking agents like EDTA, KI, and NaCl. The probe only responds to Ag+, Cu2+, and Hg2+ among the tested ions without any interference. The probe performs quite well (the limit of detection: 160 ppb, 148 ppb, and 276 ppb of Ag+, Cu2+, and Hg2+ions for UV-Vis, and 15 ppb, 37 ppb, and 467 ppb of Ag+, Cu2+, and Hg2+ ions for fluorescence, respectively), and has a fast response time (150 sec, 90 sec, and 90 sec of Ag+, Cu2+, and Hg2+ions for UV-Vis, and 300 sec, 240 sec, and 90 sec Ag+, Cu2+, and Hg2+ions for fluorescence, respectively). The probe also displays a colorimetric feature for UV-Vis and smartphone applications. Based on a single probe, Ag+, Cu2+, and Hg2+ ions which are the main toxic water contaminants could be recognized very quickly and colorimetrically with high recovery values in tap water samples. This study stands out with its unique properties compared to the related studies in the literature.

9.
Vaccines (Basel) ; 11(4)2023 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-37112684

RESUMO

AIM: We aimed to evaluate the awareness of pneumococcal vaccination (PCV13, PPSV23) in general cardiology outpatient clinics and impact of physicians' recommendations on vaccination rates. METHODS: This was a multicenter, observational, prospective cohort study. Patients over the age of 18 from 40 hospitals in different regions of Turkey who applied to the cardiology outpatient clinic between September 2022 and August 2021 participated. The vaccination rates were calculated within three months of follow-up from the admitting of the patient to cardiology clinics. RESULTS: The 403 (18.2%) patients with previous pneumococcal vaccination were excluded from the study. The mean age of study population (n = 1808) was 61.9 ± 12.1 years and 55.4% were male. The 58.7% had coronary artery disease, hypertension (74.1%) was the most common risk factor, and 32.7% of the patients had never been vaccinated although they had information about vaccination before. The main differences between vaccinated and unvaccinated patients were related to education level and ejection fraction. The physicians' recommendations were positively correlated with vaccination intention and behavior in our participants. Multivariate logistic regression analysis showed a significant correlation between vaccination and female sex [OR = 1.55 (95% CI = 1.25-1.92), p < 0.001], higher education level [OR = 1.49 (95% CI = 1.15-1.92), p = 0.002] patients' knowledge [OR = 1.93 (95% CI = 1.56-2.40), p < 0.001], and their physician's recommendation [OR = 5.12 (95% CI = 1.92-13.68), p = 0.001]. CONCLUSION: To increase adult immunization rates, especially among those with or at risk of cardiovascular disease (CVD), it is essential to understand each of these factors. Even if during COVID-19 pandemic, there is an increased awareness about vaccination, the vaccine acceptance level is not enough, still. Further studies and interventions are needed to improve public vaccination rates.

10.
Turk Kardiyol Dern Ars ; 51(2): 88-96, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36916815

RESUMO

OBJECTIVE: Oral anticoagulant therapy is the cornerstone of atrial fibrillation management to prevent stroke and systemic embolism. However, there is limited real-world information regarding stroke and systemic embolism prevention strategies in patients with atrial fibrillation. The aim of the ROTA study is to obtain the real-world data of anticoagulant treatment patterns in patients with atrial fibrillation. METHODS: The ROTA study is a prospective, multicenter, and observational study that included 2597 patients with atrial fibrillation. The study population was recruited from 41 cardiology outpatient clinics between January 2021 and May 2021. RESULTS: The median age of the study population was 72 years (range: 22-98 years) and 57.4% were female. The median CHA2DS2-VASc and HAS-BLED scores were 4 (range: 0-9) and 1 (range: 0-6), respectively. Vitamin K antagonists and direct oral anticoagulants were used in 15.9% and 79.4% of patients, respectively. The mean time in therapeutic range was 52.9% for patients receiving vitamin K antagonists, and 76% of those patients had an inadequate time in therapeutic range with <70%. The most common prescribed direct oral anticoagulants were rivaroxaban (38.1%), apixaban (25.5%), and edoxaban (11.2%). The rate of overuse of vitamin K antagonists and direct oral anticoagulants was high (76.1%) in patients with low stroke risk, and more than one-fourth of patients on direct oral anticoagulant therapy were receiving a reduced dose of direct oral anticoagulants. Among patients who were on direct oral anticoagulant treatment, patients with apixaban treatment were older, had higher CHA2DS2-VASc and HAS-BLED scores, and had lower creatinine clearance than the patients receiving other direct oral anticoagulants. CONCLUSIONS: The ROTA study provides important real-world information about anticoagulant treatment patterns in patients with atrial fibrillation.time in therapeutic range with <70%.


Assuntos
Fibrilação Atrial , Embolia , Acidente Vascular Cerebral , Humanos , Feminino , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Masculino , Anticoagulantes , Fibrilação Atrial/complicações , Fibrilação Atrial/tratamento farmacológico , Fibrilação Atrial/epidemiologia , Estudos Prospectivos , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etiologia , Acidente Vascular Cerebral/prevenção & controle , Rivaroxabana/uso terapêutico , Piridonas/uso terapêutico , Embolia/tratamento farmacológico , Vitamina K , Administração Oral , Dabigatrana/uso terapêutico
11.
Res High Educ ; : 1-26, 2023 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-36721847

RESUMO

Given the prevalence of transfer activity, education stakeholders must understand how transfer may be associated with student outcomes. Such knowledge is critical, as the COVID-19 pandemic and economic downturn have impacted college enrollment and student transfer behavior. Relying on a sample of 6510 undergraduate students from BPS:12/17 data, we conducted analyses using multiple regression to examine the relationship between student transfer direction and two student outcomes: time to degree and cumulative loan debt. Further, we analyzed whether these relationships varied by income status, using adjusted gross income (AGI) as a proxy. We found that transferring from one postsecondary institution to another may extend time to degree by one academic semester and result in increased student loan debt, with these findings varying by income level.

12.
Rev. bras. cir. cardiovasc ; 38(1): 139-148, Jan.-Feb. 2023. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1423092

RESUMO

ABSTRACT Introduction: A clear assessment of the bleeding risk score in patients presenting with myocardial infarction (MI) is crucial because of its impact on prognosis. The Anticoagulation and Risk Factors in Atrial Fibrillation (ATRIA score is a validated risk score to predict bleeding risk in atrial fibrillation (AF), but its predictive value in predicting bleeding after percutaneous coronary intervention (PCI) in ST-segment elevation myocardial infarction (STEMI) or non-STEMI (NSTEMI) patients receiving antithrombotic therapy is unknown. Our aim was to investigate the predictive performance of the ATRIA bleeding score in STEMI and NSTEMI patients in comparison to the CRUSADE (Can Rapid risk stratification of Unstable angina patients Suppress ADverse outcomes with Early implementation of the American College of Cardiology/American Heart Association Guidelines) and ACUITY-HORIZONS (Acute Catheterization and Urgent Intervention Triage strategY-Harmonizing Outcomes with Revascularization and Stents in Acute Myocardial Infarction) bleeding scores. Methods: A total of 830 consecutive STEMI and NSTEMI patients who underwent PCI were evaluated retrospectively. The ATRIA, CRUSADE, and ACUITY-HORIZONS risk scores of the patients were calculated. Discrimination of the three risk models was evaluated using C-statistics. Results: Major bleeding occurred in 52 (6.3%) of 830 patients during hospitalization. Bleeding scores were significantly higher in the bleeding patients than in non-bleeding patients (all P<0.001). The discriminatory ability of the ATRIA, CRUSADE, and ACUITY-HORIZONS bleeding scores for bleeding events was similar (C-statistics 0.810, 0.832, and 0.909, respectively). The good predictive value of all three scores for predicting the risk of bleeding was observed in NSTEMI and STEMI patients as well (C-statistics: 0.820, 0.793, and 0.921 and 0.809, 0.854, and 0.905, respectively). Conclusion: This study demonstrated that the ATRIA bleeding score is a useful risk score for predicting major in-hospital bleeding in MI patients. This good predictive value was also present in STEMI and NSTEMI patient subgroups.

14.
Braz J Cardiovasc Surg ; 38(1): 139-148, 2023 02 10.
Artigo em Inglês | MEDLINE | ID: mdl-35675497

RESUMO

INTRODUCTION: A clear assessment of the bleeding risk score in patients presenting with myocardial infarction (MI) is crucial because of its impact on prognosis. The Anticoagulation and Risk Factors in Atrial Fibrillation (ATRIA score is a validated risk score to predict bleeding risk in atrial fibrillation (AF), but its predictive value in predicting bleeding after percutaneous coronary intervention (PCI) in ST-segment elevation myocardial infarction (STEMI) or non-STEMI (NSTEMI) patients receiving antithrombotic therapy is unknown. Our aim was to investigate the predictive performance of the ATRIA bleeding score in STEMI and NSTEMI patients in comparison to the CRUSADE (Can Rapid risk stratification of Unstable angina patients Suppress ADverse outcomes with Early implementation of the American College of Cardiology/American Heart Association Guidelines) and ACUITY-HORIZONS (Acute Catheterization and Urgent Intervention Triage strategY-Harmonizing Outcomes with Revascularization and Stents in Acute Myocardial Infarction) bleeding scores. METHODS: A total of 830 consecutive STEMI and NSTEMI patients who underwent PCI were evaluated retrospectively. The ATRIA, CRUSADE, and ACUITY-HORIZONS risk scores of the patients were calculated. Discrimination of the three risk models was evaluated using C-statistics. RESULTS: Major bleeding occurred in 52 (6.3%) of 830 patients during hospitalization. Bleeding scores were significantly higher in the bleeding patients than in non-bleeding patients (all P<0.001). The discriminatory ability of the ATRIA, CRUSADE, and ACUITY-HORIZONS bleeding scores for bleeding events was similar (C-statistics 0.810, 0.832, and 0.909, respectively). The good predictive value of all three scores for predicting the risk of bleeding was observed in NSTEMI and STEMI patients as well (C-statistics: 0.820, 0.793, and 0.921 and 0.809, 0.854, and 0.905, respectively). CONCLUSION: This study demonstrated that the ATRIA bleeding score is a useful risk score for predicting major in-hospital bleeding in MI patients. This good predictive value was also present in STEMI and NSTEMI patient subgroups.


Assuntos
Hemorragia , Infarto do Miocárdio com Supradesnível do Segmento ST , Humanos , Fibrilação Atrial/complicações , Hemorragia/epidemiologia , Hemorragia/etiologia , Hospitais , Infarto do Miocárdio/complicações , Infarto do Miocárdio sem Supradesnível do Segmento ST/complicações , Intervenção Coronária Percutânea/efeitos adversos , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Infarto do Miocárdio com Supradesnível do Segmento ST/complicações , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia , Resultado do Tratamento
15.
Artigo em Inglês | MEDLINE | ID: mdl-36527566

RESUMO

PURPOSE: Inappropriate dosing of direct oral anticoagulants is associated with an increased risk of stroke, systemic embolism, major bleeding, cardiovascular hospitalization, and death in patients with atrial fibrillation. The main goal of the study was to determine the prevalence and associated factors of inappropriate dosing of direct oral anticoagulants in real-life settings. METHODS: This study was a multicenter, cross-sectional, observational study that included 2004 patients with atrial fibrillation. The study population was recruited from 41 cardiology outpatient clinics between January and May 2021. The main criteria for inappropriate direct oral anticoagulant dosing were defined according to the recommendations of the European Heart Rhythm Association. RESULTS: The median age of the study population was 72 years and 58% were women. Nine-hundred and eighty-seven patients were prescribed rivaroxaban, 658 apixaban, 239 edoxaban, and 120 dabigatran. A total of 498 patients (24.9%) did not receive the appropriate dose of direct oral anticoagulants. In a logistic regression model, advanced age, presence of chronic kidney disease and permanent atrial fibrillation, prescription of reduced doses of direct oral anticoagulants or edoxaban treatment, concomitant use of amiodarone treatment, and non-use of statin treatment were significantly associated with potentially inappropriate dosing of direct oral anticoagulants. CONCLUSION: The study demonstrated that the prevalence of inappropriate direct oral anticoagulant dosing according to the European Heart Rhythm Association recommendations was 24.9% in patients with atrial fibrillation. Several demographic and clinical factors were associated with the inappropriate prescription of direct oral anticoagulants.

16.
iScience ; 25(4): 104025, 2022 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-35340430

RESUMO

Activity-dependent calcium signals in developing muscle play a crucial role in neuromuscular junction (NMJ) formation. However, its downstream effectors and interactions with other regulators of pre- and postsynaptic differentiation are poorly understood. Here, we demonstrate that the skeletal muscle calcium channel CaV1.1 and ß-catenin interact in various ways to control NMJ development. They differentially regulate nerve branching and presynaptic innervation patterns during the initial phase of NMJ formation. Conversely, they cooperate in regulating postsynaptic AChR clustering, synapse formation, and the proper organization of muscle fibers in mouse diaphragm. CaV1.1 does not directly regulate ß-catenin expression but differentially controls the activity of its transcriptional co-regulators TCF/Lef and YAP. These findings suggest a crosstalk between CaV1.1 and ß-catenin in the activity-dependent transcriptional regulation of genes involved in specific pre- and postsynaptic aspects of NMJ formation.

18.
Int. j. cardiovasc. sci. (Impr.) ; 35(2): 214-219, Mar.-Apr. 2022. tab
Artigo em Inglês | LILACS | ID: biblio-1364976

RESUMO

Abstract Background Various studies are ongoing related to the radioprotective agents. Herbal preparations are currently becoming popular because of their beneficial effects with fewer side effects compared to the synthetic/semi-synthetic medicines, and Nigella sativa oil (NSO) is only one of them. Objective To investigate NSO for its antioxidant effects on the heart tissue of rats exposed to ionizing radiation (IR). Methods Thirty six male albino Wistar rats, divided into four groups, were designated to group I (IR plus NSO group) that received both 5 Gray of gamma IR to total cranium and NSO; group II (IR alone group) that received IR plus saline, group III (control group of NSO) that received saline and did not receive NSO or IR; group IV (control group) that received only sham IR. Alterations in Total antioxidant status (TAS) and Total oxidant status (TOS), Oxidative stres index (OSI), Sulhydryl group (SH), Lipid hydroperoxide (LOOH), Paraoxonase (PON) levels, Arylesterase (ARE) and Ceruloplasmin (CER) activities in homogenized heart tissue of rats were measured by biochemical methods. Results In heart tissue of the rats in the IR alone group (group II) LOOH, TOS and OSI levels were found to be higher, ARE activity and TAS level were found to be lower than all of the other groups (p < 0.01). These results also support that IR increases oxidative stress and NSO's protective effect. Conclusion NSO would reduce the oxidative damage in the irradiated heart tissue in the experimental rat model.


Assuntos
Animais , Masculino , Ratos , Protetores contra Radiação/uso terapêutico , Óleos de Plantas/uso terapêutico , Nigella sativa , Estresse Oxidativo/efeitos dos fármacos , Coração/efeitos da radiação , Antioxidantes/uso terapêutico , Plantas Medicinais , Protetores contra Radiação/análise , Ratos Endogâmicos , Ratos Wistar , Estresse Oxidativo/efeitos da radiação , Preparações de Plantas/uso terapêutico , Cardiotoxicidade/tratamento farmacológico , Coração/efeitos dos fármacos , Fitoterapia
19.
Chest ; 160(5): e503-e506, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34743853

RESUMO

CASE PRESENTATION: A 24-year-old woman, a baby-sitter with no known comorbidities, presented to the outpatient department with complaints of modified Medical Research Council grade IV breathlessness for 3 months, chest pain, and dry cough for 2 weeks. There was no known disease history, including respiratory, flu-like illness, or connective tissue disorder. There was no use of chemotherapeutic, oral contraceptive drugs, exposure to toxic substances, or smoking. A review of systems was negative for fever, arthralgia, myalgia, Raynaud phenomenon, skin thickening, rash, or leg swelling. The patient had no family history suggestive of a genetic syndrome.


Assuntos
Hemangioma Capilar/diagnóstico , Hipertensão Pulmonar/diagnóstico , Neoplasias Pulmonares/diagnóstico , Proteínas Serina-Treonina Quinases/genética , Pneumopatia Veno-Oclusiva , Pirimidinas/administração & dosagem , Citrato de Sildenafila/administração & dosagem , Sulfonamidas/administração & dosagem , Dor no Peito/diagnóstico , Dor no Peito/etiologia , Angiografia por Tomografia Computadorizada/métodos , Tosse/diagnóstico , Tosse/etiologia , Diagnóstico Diferencial , Dispneia/diagnóstico , Dispneia/etiologia , Ecocardiografia/métodos , Antagonistas do Receptor de Endotelina A/administração & dosagem , Feminino , Humanos , Hipertensão Pulmonar/etiologia , Hipertensão Pulmonar/fisiopatologia , Transplante de Pulmão , Mutação , Oxigenoterapia/métodos , Inibidores da Fosfodiesterase 5/administração & dosagem , Pneumopatia Veno-Oclusiva/complicações , Pneumopatia Veno-Oclusiva/congênito , Pneumopatia Veno-Oclusiva/diagnóstico , Pneumopatia Veno-Oclusiva/genética , Testes de Função Respiratória/métodos , Adulto Jovem
20.
Kardiologiia ; 61(8): 60-67, 2021 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-34549695

RESUMO

Aim To investigate the relationship between malnutrition and follow-up cardiovascular (CV) events in non-ST-segment elevation myocardial infarction (NSTEMI).Material and methods A retrospective study was performed on 298 patients with NSTEMI. The baseline geriatric nutritionalrisk index (GNRI) was calculated at the first visit. The patients were divided into three groups accordingto the GNRI: >98, no-risk; 92 to ≤98, low risk; 82 to <92, moderate to high (MTH) risk. The studyendpoint was a composite of follow-up CV events, including all-cause mortality, non-valvular atrialfibrillation (NVAF), hospitalizations, and need for repeat percutaneous coronary intervention (PCI).Results Follow-up data showed that MTH risk group had significantly higher incidence of repeat PCI and all-cause mortality compared to other groups (p<0.001). However, follow-up hospitalizations and NVAFwere similar between groups (p>0.05). The mean GNRI was 84.6 in patients needing repeat PCI and99.8 in patients who did not require repeat PCI (p<0.001). Kaplan Meier survival analysis showed thatpatients with MTH risk had significantly poorer survival (p<0.001). According to multivariate Coxregression analysis, theMTH risk group (hazard ratio=5.372) was associated with increased mortality.Conclusion GNRI value may have a potential role for the prediction of repeat PCI in patients with NSTEMI.


Assuntos
Infarto do Miocárdio sem Supradesnível do Segmento ST , Intervenção Coronária Percutânea , Infarto do Miocárdio com Supradesnível do Segmento ST , Idoso , Humanos , Estudos Retrospectivos , Fatores de Risco , Infarto do Miocárdio com Supradesnível do Segmento ST/complicações , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico , Infarto do Miocárdio com Supradesnível do Segmento ST/cirurgia , Resultado do Tratamento
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