heart

Prevalence of Hypertension in patients with chronic Coronary Artery Disease in Cyprus

Published on: 6th December, 2022

Coronary Artery Disease (CAD) is the most common type of heart disease and a major cause of mortality worldwide. This study highlights the significance of hypertension as a risk factor in patients with CAD and compares its prevalence to those of EUROASPIRE IV (EUS-IV), ESC Atlas of Cardiology (Atlas) and Cyprus Survey of Coronary Heart Disease of 2006 (CY-2006). A retrospective, observational study was conducted, by the Registry of Cyprus Heart Survey, where 375 individuals with chronic CAD were examined in Nicosia General Hospital Cardiology Clinics, between the years 2011 and 2014. Their medical history regarding hypertension was noted and the data was analyzed using Microsoft Excel software. The total prevalence of hypertension, based on the past medical history of the patients was 59%.Out of these, 52% were found to have elevated blood pressure on their visit to the Cardiology Clinic. The total mean systolic blood pressure amongst the study group was 136 mmHg, with no significant differences between males and females (136 mmHg and 134 mmHg respectively).The findings of the present study are the same compared to those of the CY-2006 (52% both), but slightly higher than the findings of EUS-IV (52% vs. 42.7%) and significantly higher than those recorded in the Atlas (52% vs. 24.8%). The results show that there is still much potential to improve hypertension management in patients with established CAD.
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To evaluate the stress response to tracheal intubation by macintosh laryngoscope and intubating laryngeal mask airway

Published on: 19th December, 2022

Aim: To evaluate the hemodynamic changes and side effects during endotracheal intubation with Macintosh laryngoscope and intubating laryngeal mask airway.Materials and methods: A prospective, simple randomized, comparative study on 100 patients 18 years - 60 years of age, divided into two groups: Group A comprising intubation with Macintosh laryngoscope and Group B intubation through ILMA.Results: Total intubation time (in seconds) of group A was 24.38 + 3.26 seconds and of the group, B was 42.94 + 1.24 seconds. At 2,4 and 6, a higher rise in mean heart rate was noted in group A (p < 0.05). At 2,4,6 and 8 minutes difference in mean SBP and mean DBP of the two groups was statistically significant with a p - value of < 0.05 with a significant increase of mean SBP and mean DBP in patients of group A. The difference for all complications was not significant between the two groups.Conclusion: Intubation via intubating laryngeal mask airway can be done as an alternative to direct laryngoscopy using a Macintosh blade as intubation via intubating laryngeal mask airway has shown to have lesser hemodynamic changes.
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Cesarean scar pregnancy: A clinical case report

Published on: 6th January, 2023

Background: Among the different forms of ectopic pregnancy, cesarean scar pregnancy is one of the most uncommon with an estimated incidence of 1/1800 pregnancies. A major risk of massive hemorrhage, it requires active management as soon as it is diagnosed because it can affect the functional prognosis of the patient (hysterectomy) but can also be life-threatening. Different surgical techniques are generally proposed in first intention to patients who no longer wish to have children, who are hemodynamically unstable and/or in case of failure of medical treatment.Case presentation: We hereby report the case of a young 19-year-old patient with no particular medical history, gravida 2 para 1 with a live child born after a cesarean section for fetal heart rhythm abnormalities during labor 5 months earlier and who presented to the emergency room of our structure for the management of a cesarean pregnancy scar diagnosed at 6 weeks of amenorrhea. She was successfully managed with an intramuscular injection of methotrexate. The follow-up was uneventful.Conclusion: The implantation of a pregnancy on a cesarean section scar is becoming more and more frequent. With consequences that can be dramatic, ranging from hysterectomy to life-threatening hemorrhage, clinicians must be familiar with this pathological entity and be prepared for its management. The latter must be rapid and allow, if necessary, the preservation of the patient's fertility. In this sense, conservative medical treatment with methotrexate injections should be proposed as a first-line treatment in the absence of contraindication.
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Renal denervation for resistant hypertension and heart failure with a reduced ejection fraction

Published on: 16th March, 2023

Hypertension is a risk factor for the development of heart failure and has a negative impact on the survival of these patients. Although patients with these two conditions usually take different antihypertensive medications, some patients do not achieve adequate blood pressure control and their hypertension becomes resistant or refractory. In this scenario, percutaneous renal denervation has emerged in recent years as an alternative to achieve blood pressure control goals. We present the case of a 53-year-old woman with a medical history of essential hypertension, hypercholesterolemia, unipolar depression, and diabetes, who was diagnosed with dilated cardiomyopathy with reduced left ventricular ejection fraction (33%). Despite the initiation of multiple antihypertensive medications and placement of a cardiac resynchronization therapy pacemaker, the patient remained hypertensive with a left ventricular ejection fraction of 40%. At that time, percutaneous renal denervation was performed without complications, and one year after the procedure, the patient had improved better blood pressure control and the left ventricular ejection fraction increased to 51%. This case illustrates one of the clinical scenarios in which it has been suggested that renal denervation may be more beneficial, as in the situation of patients with refractory hypertension and heart failure.
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IC87201, a PSD-95/nNOS Inhibitor, Ameliorates Heart Rate Variability in the Rat Model of Middle Cerebral Artery Occlusion

Published on: 11th July, 2023

Objective: Assessment of heart rate variability (HRV) is a non-invasive and reliable method to evaluate autonomic disorders after cerebral ischemia. The present study was conducted to investigate the therapeutic potential of IC87201 in reducing post-stroke cardiac dysfunction. Materials and methods: Cerebral ischemia was induced by the middle cerebral artery occlusion (MCAO) method in 15 anesthetized adult male rats in three MCAO, MCAO+ DXM, and MCAO+ IC87201 groups, for one hour. Electrocardiogram was recorded before, and 48 hours after ischemia and drug administration, and HRV parameters were calculated from R-R intervals. In the treatment groups, IC87201 and Dextromethorphan hydrobromide monohydrate (DXM) were injected after an ischemic period. Results: After brain ischemia, the R-R interval decreased and consequently heart rate increased. The R-R intervals were used to extract the HRV frequency and time domains, including normalized low frequency (LF), high frequency (HF), LF/HF ratio, and standard deviation of R-R interval (SDRR). Normalized LF and LF/HF ratio enhanced 48 hours after ischemia, while normalized HF and SDRR significantly reduced compared to the pre-ischemic state. All HRV parameters had returned to their pre-ischemic level 48 hours after IC87201 and DXM administration, except SDRR, which recovered only in the IC87201 administered group. Conclusion: Based on our findings, it can be concluded that cerebral ischemia significantly worsens HRV parameters as a result of sympathetic overactivity. These changes were reversed by administering DXM and IC87201, but IC87201 has generally been more effective in lowering lesions. As a result, IC87201 can be introduced as an effective substance for the treatment of post-ischemic cardiac side effects.
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Impact of COVID-19 on Laboratory Health Staff in an Indian Tertiary Care Hospital

Published on: 24th July, 2023

Background: The COVID-19 pandemic has resulted in significant burdens globally. Healthcare workers (HCWs), at the heart of the unparalleled crisis of COVID-19, face challenges treating patients and doing testing for COVID-19: reducing the spread of infection; developing suitable short-term strategies; and formulating long-term plans. We aimed to assess the psychological impact of COVID-19 on Laboratory health staff. Material and methods: Between February - March 2021, 72 laboratory staff workers of a tertiary care teaching hospital were invited to fill out a questionnaire regarding concerns and worries about the novel coronavirus pandemic, along with a coping scoring system and General health questionnaire level (GHQ-12) survey. Results: Out of 72 laboratory health staff who completed the survey questionnaire, 10 were faculty members, 17 were residents (including senior residents, junior residents, and demonstrators), 39 were lab technicians, followed by 4 were attendants and 2 were data operators. Laboratory staff workers with an age group range from 30 years - 60 years had a higher level of depression symptoms than respondents with 20 years - 29 years of age. Similarly, the symptoms of anxiety were noted to be significantly higher among female respondents and respondents with age >30yrs. The most frequent concern was transmitting the infection to family than to themselves only. A considerable number of laboratory staff workers utilized online psychological resources to deal with their psychological distress.Conclusion: The findings of this survey recognize the various problems faced by laboratory health workers during the period of COVID-19 which affect their working ability. Therefore, in the future, we have to implement such strategies that enhance the performance of laboratory workers, boost their energy level, and encourage them to take care of themselves, in times of such crisis.
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Environmental PM2.5, Physical Activity Levels, and Aerobic Capacity, of Smokers and Non-Smokers

Published on: 27th July, 2023

Aerobic capacity of young men (19 years - 24 years) is high, but can be influenced by many factors like physical activity, smoking, and air pollution with environmental PM 2.5. Objectives: (a) - to estimate the aerobic capacity in young men (smokers and non-smokers) living in areas with higher PM 2.5 using Queen’s College Step Test (QCT). (b) - to find whether aerobic capacity is associated with the International Physical Activity Questionnaire (IPAQ)’ three classes, for smokers and non-smokers. Methods: In a cross-sectional study using criteria-based sampling a total of N = 60 smokers & non-smokers were included from the Delhi NCR region. IPAQ, Peak Expiratory Flow Rate (PEFR), Heart Rate, Systolic Blood Pressure, Diastolic Blood Pressure, and PM 2.5 and PM 10 levels were recorded. A comparison of smokers and non-smokers was performed using z test. Smokers and non-smokers were divided into three classes using physical activity levels and compared for aerobic capacity. The correlation of aerobic capacity with variables was seen using Pearson’s correlation coefficient. Multiple R was checked to study the model of cause and effect for aerobic capacity. Results: Significant difference is seen between smokers and non-smokers in the aerobic capacity (Mean ± SD smokers - 65.22 ± 8.73 ml/kg/min; Mean ± SD non-smokers 60.04 ± 7.7 ml/kg/min p value = 0.00). For non-smokers, a low level of physical activity shows a strong correlation with aerobic capacity (r = 0.78; p = < 0.05). No correlation of aerobic capacity is seen with physical activity levels among smokers. Aerobic capacity shows a significant negative and moderate correlation with PM 2.5 (r = -3.1; p = 0.016). The multiple R coefficient value for the model of cause and effect is 6.99 with a p - value of 0.0449 for this. Conclusion: Smoking affects aerobic capacity significantly for young men. High and moderate levels of outdoor physical activity do not increase aerobic capacity in areas with high PM 2.5, whereas low levels show a positive correlation among non-smokers only. 
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Cardiac Tamponade as the Cause of Pulmonary Edema: Case Report

Published on: 17th August, 2023

Introduction: Cardiac tamponade is an emergency syndrome that requires fast diagnosis and treatment; otherwise patient follows obstructive shock and cardiac arrest. Case report: A 70-year-old female was brought to the emergency department with hypoxemia. She had a history of progressive dyspnea over the past three weeks. Past medical history includes smoking. On physical examination: tachypnea, hypoxemia (SaO2 89%), jugular venous distention, arterial pressure 220/100 mmHg, heart rate rhythmic of 82 bpm. On pulmonary auscultation: diffuse and bilateral crackles. Lung ultrasound showed a bilateral B line and the echocardiogram demonstrated a pericardial effusion with signs of tamponade. A pericardiocentesis evacuated 620 ml of hemorrhagic fluid and the patient was transferred to the intensive care unit, hemodynamically stable, with SaO2 95%. At the ICU the echocardiogram, showed resolution of the cardiac tamponade and a tumor adhered to the lateral wall of the left ventricle. Chest CT demonstrated: a left lung tumor, infiltrating the pericardial sac. A pericardium biopsy demonstrated undifferentiated carcinoma. Discussion: Cardiac tamponade diagnosis requires a high level of suspicion. Respiratory failure, chest pain, and shock, observed in cardiac tamponade, are also present in different diseases. The most common finding of cardiac tamponade is dyspnea (78% of cases). Our patient had dyspnea due to pulmonary edema, secondary to left ventricle diastolic dysfunction caused by the tamponade. A bedside echocardiogram made the diagnosis of cardiac tamponade and guided the effective pericardiocentesis. Conclusion: Cardiac tamponade must be suspected in all cases of acute dyspnea. Echocardiogram is the method of choice for the diagnosis and for guiding the pericardiocentesis.
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Deciphering the Rosetta Stone - Trans-Mitral Doppler Patterns for a Simplified Study of Left Ventricular Systolic Dysfunction

Published on: 30th August, 2023

There is a renewed interest in heart failure treatments. With this, there is an increasing interest in heart failure with preserved ejection fraction. Trans-mitral Doppler is commonly used in the assessment of ‘diastolic’ function. It is fashionable to discuss diastolic dysfunction and diastology with the result that the more important systolic dysfunction has become passé. The current literature equates trans-mitral Doppler patterns to diastolic function when actually it is more relevant in systolic dysfunction. This article is an attempt to correct this flawed perception of trans-mitral Doppler.
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Cardiovascular Response to Head Down Crooked Kneeling Position Among Type 2 Diabetic Patient

Published on: 5th September, 2023

Background: Factors like emotions, lifestyle choices, and physical activities, including posture changes, have a significant impact on cardiovascular indicators like blood pressure and heart rate. The study aims to examine the cardiovascular reactions in individuals with type 2 diabetes while performing the head-down crooked kneeling (HDCK) or Sujood position, resembling poses found in hatha yoga. This position emphasizes relaxation, body awareness, and meditation. Those with type 2 diabetes who engage in yoga have reported enhancements in their management of blood sugar levels and insulin resistance. Methodology:  A cross-sectional study was conducted in different hospitals. The sample size was 312 which was calculated by using the Rao soft calculator. The participants were selected by non-probability convenience sampling technique. Inclusion Criteria were male and Female diagnosed with Type 2 DM, Subjects with a history of smoking, Cognitive Impairment, Sepsis, Cardiac pathology, Respiratory disorders, and Malignancy were excluded. Blood pressure and heart rate were monitored initially, during the Crooked Down Kneeling position, and after the Crooked Down Kneeling Position. A Digital Sphygmomanometer was used to measure blood pressure and a pulse rate-demographic Assessment form was used to collect data. Ethical consideration is maintained. Informed consent was taken from participants. Results: The result shows a significant effect of head down crooked kneeling position on cardiovascular response in type 2 diabetic patients (p < .001). Systolic, diastolic blood pressure, and heart rate before, during, and after HDCK were significantly increased (p < .001) as compared to the baseline value, and after 5 min returning to the upright position it reverted to the initial value. Conclusion: This study revealed a significant increase in systolic and diastolic blood pressures and an increase in pulse rate during HDCK. Also, our findings showed no significant gender difference in the effect of HDCK on all the other cardiovascular parameters except systolic bp.
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Heart Rate Variability Biofeedback and Psychotherapy in Polycystic Ovary Syndrome: Description of a Case Report to Shed Light on this Understudied Condition

Published on: 20th September, 2023

Background: Although there is minimal information on the role of stress in PCOS, it is well-known that it may trigger the exacerbation and maintenance of the disease. Despite there being only a few studies in the literature, many researchers highlighted situations of autonomic hyperactivation characterizing PCOS. In light of these assumptions, the purpose of this study is to report on a patient who underwent psychological intervention to enhance stress management skills.Case: A 30-year-old woman was referred by the endocrinologist. From a clinical-psychological point of view, the condition of the patient was characterized by a modest psychophysiological activation. Interpersonal difficulties did not allow the patient to benefit from the social support of her loved ones, further favoring the maintenance of the excessive arousal generated by stressful life events. The patient was treated with HRV-Biofeedback integrated within cognitive-behavioral psychotherapy.Discussion: The multidimensional intervention brought benefits to the patient, teaching her better stress management strategies (i.e., reduction of psychological symptoms and improvement of hormonal tests). Keeping in mind the interplay between physiological, psychological, and interpersonal factors is fundamental in all psycho-somatic and somato-psychic disorders and is crucial to enhance the use of specific treatments to restore psychophysical well-being.
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Systemic Lupus Erythematosus and Depression Overview

Published on: 3rd January, 2024

Systemic lupus erythematosus (SLE) is a chronic inflammatory multisystem disorder that commonly affects females during their reproductive years. It is characterized by the presence of autoantibodies and immune complex deposition, the etiology is not known but the interaction of an environmental agent in a genetically susceptible individual is thought to be fundamental. SLE most frequently involves the skin, joints, lungs, heart, kidney, and neuropsychiatric manifestations that may occur during the course of the disease. Mood disorders among SLE patients, particularly depression, are common and important psychiatric manifestations of the disease, in addition to their high incidence and possible deleterious influence on disease progression, so early identification and treatment of depression may have a significant influence on the patient’s quality of life.
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Bimatoprost Ophthalmic Solution (BOS) 0.3 mg w/v for 1 Open Trial of Long-term Preventive Therapy of Migraine in 3 patients with Pathophysiologic Shift from Brain to Eye

Published on: 9th November, 2023

Known since antiquity, migraine is a complex primary disorder, an episodic painful Autonomic Nervous System (ANS) storm, generally following the stress/post-stress phase. Despite exhaustive study of neuropeptides, neurochemicals, molecules, neurogenetics, neuroimaging along with animal and human experiments over the last 50 years, the scientific basis of migraine remains unknown. Straddling eight decades from Cortical Spreading Depression (CSD) to Calcitonin-Gene Related Peptide (CGRP) and its antagonists, exponentially increasing data have failed to create a gestalt synthesis. This article lays cohesive and robust fundamental principles for the comprehension and management of migraine. The continuum between migraine and non-congestive Primary Open-Angle Glaucoma (POAG), Normal Tension Glaucoma (NTG), or Low-Tension Glaucoma (LTG) is advancing. The case of sustained remission of migraine attacks (> 75%) over 3 years - 5 years with ocular hypotensive topical Bimatoprost Ophthalmic Solution (BOS) 0.3% in an N-of-1 trial in 3 patients with refractory migraine is presented. A cause-effect-adaptive process underlies the ANS-stress/post-stress-linked biology of migraine. Vasopressin-serotonin-norepinephrine ‘homeostatic-adaptive system’ Lowers Intraocular Pressure (IOP), while enhancing anti-stress, antinociception, vasomotor, and behaviour control functions, thereby selectively decreasing algogenic neural traffic in the ophthalmic division of trigeminal nerve (V1), and, raising the threshold to develop migraine. Striking migraine headache-aborting feature of vomiting is also likely linked to a several hundred-fold increase in arginine-vasopressin secretion. Eye-cover tests and self-ocular digital displacement are essential to studying the visual aura. Real-time physical displacement of Scintillating Scotoma (SS) and floating ‘stars’ is reported. The basis of spontaneous onset and offset, self-limited duration of migraine attacks, as well as female preponderance, and age/menopause decline in prevalence, are elucidated. Intraocular implants with long-term ocular hypotensive effects, including bimatoprost, are the future of migraine management. Controlled trials are required to establish the migraine-preventive effect of topical bimatoprost, a revolutionary advance in neuroscience.
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Phenotypic differences in Obese Patients with Heart Failure with Preserved Ejection Fraction (HFpEF) - A Mini Review

Published on: 24th January, 2024

The incidence of heart failure with preserved ejection fraction (HFpEF) continues to rise, and obesity continues to be a predominant comorbid condition affecting patients with HFpEF. Recent research sheds light on the important pathophysiologic role that obesity plays in the development of HFpEF, with many areas of opportunity existing for future developments in understanding the etiology and management of the disease. Crucial in these pathophysiologic developments are studies that clearly characterize the obesity phenotype in HFpEF and compare it to presentations of HFpEF in patients without obesity. This paper reviews the existing literature on the obesity phenotype within HFpEF and discusses some of the prevailing ideas behind the pathophysiologic interplay between the conditions, as well as the existing treatments demonstrating improved outcomes in HFpEF.
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Macitentan in Adults with Sickle Cell Disease and Pulmonary Hypertension: A Proof-of-Concept Study

Published on: 22nd April, 2024

Pulmonary hypertension (PH) in sickle cell disease (SCD) is associated with a mortality rate of 37%. There is an upregulation of adhesion molecules which leads to the expression of endothelin-1, a potent vasoconstrictor. A prospective, descriptive study was done to determine the safety and efficacy of macitentan in patients with SCD and PH. Continuous variables were reported as mean ± SEM or percentage where appropriate. We screened 13 patients and recruited five. All five patients were adults. Data were analyzed as appropriate by student t - test. Statistical significance was assumed at p < 0.05. Baseline pulmonary hemodynamics obtained by right heart catheterization and systemic hemodynamics were (± SEM): mean pulmonary artery pressure (MPAP) 32 ± 8 mmHg, right atrial pressure (RAP) 9 ± 4 mmHg, pulmonary vascular resistance (PVR) 257 dynes-sec/cm5 and CI 3·7 ± 0.39 l/m2. Of all parameters, only PVR and 6-min walk distance changed significantly. For the group, MPAP decreased by 15.6%, PVR by 22.5% and RAP by 25.5%. The 6-minute walk distance increased over sixteen weeks except in Patient 4 who had a 3% decrease. The mean walk distance increased in the total distance, from 464 ± 158 meters to 477 ± 190 meters (p .123). In four patients, the adverse events were mild to moderate and did not lead to study drug discontinuation. Significant improvement in pulmonary hemodynamics and exercise capacity in patients with SCD-related pulmonary arterial hypertension. We found that macitentan was safe and well tolerated.
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Reducing CO2 in Passive House Adapted Low-cost Tropical Homes?

Published on: 26th April, 2024

The background of this novel study is how to apply an empirically adjusted Passive House concept in the tropics - beyond its otherwise prevailing global standards. Even though well-insulated houses have been on the planet since people settled down in some of their first dwellings, passive in the 21st century is different. It includes strict rules for airtightness and fitting of windows along with a sophisticated concept for artificial ventilation. Fresh air reachable from outside by filtered ventilation with heat recovery describes the heart of the system - if natural outside air is not preferable, it is convenient just in seasons with thermal comfort.Hence, the purpose and aim of the study presented here is to use a less common and at the same time more cost-saving approach: It might seem that the modern type of passive house entails the same standards that have been developed firmly on its own global market niche. However, this article tries to contribute toward a new development of modern passive homes for low-cost affordable tropical and subtropical houses in their entirety.As a concluding note, the author states that nobody has ever disproven this evolving concept as a combination of airtightness and a new way of forced ventilation without heat- or coolness recovery which is highly applicable for low-cost residential areas in tropical countries. By generating lower temperatures, it can help to surpass the overheating caused by climate change in certain tropical climate zones in higher altitudes and during cooler seasons. The condition is that the occupants are willing to accept a thermal comfort of up to 28 °C and humidity in its 70s and 80s.
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Cardioprotective Potentials of Anacardium occidentale Nuts Methanolic Extract in Diabetes-Induced Cardiac Dysfunction in Rats

Published on: 15th May, 2024

Background: The unwanted adverse toxicity displayed by synthetic antidiabetic medicine leads to the search for effective natural medicine to combat diabetes complications. This study investigated the cardioprotective of Anacardium occidentale nuts methanolic in high-fat diet (HFD)/streptozotocin (STZ)-induced diabetic rats.Materials and methods: Forty male adult Wistar were used and fed with HFD for 6 weeks before diabetes induction. The rats were grouped into 5 groups, 8 rats/group. Group I: normal control; Group II: diabetic control; Group III & IV: diabetic rats + 100 mg/kgb.wt & 200 mg/kgb.wt Anacardium occidentale nuts methanolic extract; Group V: diabetic rats + 200 mg/kgb.wt metformin. The rats were sacrificed on the experiment’s last day, blood samples were collected and the hearts were isolated for biochemical parameters estimation.Results: Food intake, water intake, plasmas insulin, Fasting Blood Glucose (FBG), glycosylated hemoglobin (HbA1c), cardiac enzymes, lipid profile, inflammatory cytokines, malondialdehyde, fibrotic marker, caspase-3 in cardiac of diabetic rats were elevated (p < 0.05) significantly. Body weight, cardiac antioxidant, and anti-apoptotic marker levels diminished (p < 0.05) significantly in diabetic rats. 100 mg/kgb.wt & 200 mg/kgb.wt of Anacardium occidentale nuts methanolic extract administration significantly suppressed the plasma insulin, FBG, HbA1c, cardiac lipid profile, cardiac enzymes biomarker, cardiac inflammatory cytokines, cardiac malondialdehyde, cardiac fibrotic marker, cardiac caspase-3, food intake & water intake and increased the body weight, cardiac antioxidant & cardiac anti-apoptotic marker in the diabetic rats.Conclusion: Anacardium occidentale nuts attenuate cardiac injury in diabetes. It could be a natural medicine to manage diabetes-cardiovascular complications.
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Carfilzomib Induced Cardiac Tamponade - A Case Report

Published on: 25th June, 2024

Carfilzomib, a highly selective proteasome inhibitor, is commonly used in the treatment of multiple myeloma and AL amyloidosis. While its efficacy is well-established, there is increasing recognition of its association with cardiovascular adverse events, including hypertension, heart failure, and arrhythmias. However, cases of carfilzomib-induced pericardial disease remain rare. Here, we present a case of a 78-year-old female with multiple myeloma who experienced two episodes of hemorrhagic pericardial effusion following carfilzomib therapy, highlighting the importance of vigilant cardiovascular monitoring during treatment.
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Beta-1 Receptor (β1) in the Heart Specific Indicate to Stereoselectivity

Published on: 10th July, 2024

The β1 receptor is one of the three beta receptors present in the human body, namely β1, β2, and β3. The β1 receptor is predominantly located in the heart, where it plays a crucial role in regulating the heart rate and the force of contraction, thereby increasing the cardiac output and the efficiency of blood pumping throughout the body. This receptor is targeted by a variety of pharmaceutical agents known as beta-blockers, which are commonly used in the treatment of cardiovascular conditions such as hypertension, angina, and arrhythmias.The β1 receptor exhibits stereoselectivity, meaning that different enantiomers (chiral molecules) of beta blockers can have varying levels of effectiveness and side effects. This study focuses on the stereoselectivity of the β1 receptor and the clinical implications of this property. It includes an examination of various β1 blockers, such as propranolol (a non-selective beta  blocker), and selective β1 blockers like atenolol, bisoprolol, nebivolol, metoprolol, esmolol, acebutolol, and betaxolol. Each of these drugs has a unique chemical structure, with specific functional groups that contribute to their selective action on the β1 receptor.Furthermore, the β2 receptor, which is mainly present in the bronchi and bronchioles, is responsible for bronchodilation, and the β3 receptor, found in the bladder, helps reduce urinary urgency. Understanding the distinct locations and functions of these receptors allows for the development of targeted therapies with minimal off-target effects.This review highlights the importance of stereoselectivity in the development and use of β1 blockers, discussing their chemical structures, pharmacological activities, and therapeutic uses. It also explores the potential for future research and development of more selective and effective β1 receptor agonists and antagonists, which could offer improved therapeutic outcomes for patients with cardiovascular diseases.This study underscores the significant role of the β1 receptor in cardiovascular health and provides insights into the ongoing advancements in beta-blocker therapy. By delving into the stereoselectivity and specific actions of these drugs, the research aims to enhance the understanding and optimization of β1 receptor-targeted treatments in clinical practice.
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Effectiveness of Intercostal Stretch Technique on Pulmonary Conditions: A Narrative Review

Published on: 13th September, 2024

Background: The Intercostal Stretch Technique is one of the physiotherapy techniques that is used to solve different respiratory problems. It is used for increasing chest expansion and diaphragm excursion improvement and also intra-thoracic lung volume. Aim: The study aims to evaluate the effectiveness of the intercostal stretch technique.Methodology: A narrative review. In this study, an RCT study was used to review the intervention.Results: Several articles are used to discuss the effectiveness of the intercostal stretch technique. In stable COPD, diaphragmatic breathing and the intercostal stretch technique both work equally well to improve chest expansion and functional capacity while lowering dyspnea. Research has shown that IC stretch outperforms the anterior basal lift technique in lowering heart and respiratory rates while increasing oxygen saturation. According to this study, IC stretching in conjunction with breathing control may improve dynamic lung parameters, particularly FEV1/FVC%, more than breathing control alone. Patients with COPD have an increased functional exercise capacity and reduced dyspnea when aerobic training and respiratory muscle stretching are combined. Conclusion: Different articles demonstrated that IC stretch improved lung function, expired tidal volume, decreased dyspnea, and increased chest expansion.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat
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