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Full-Text Articles in Life Sciences

Neurological-Type Wilson Disease: Epidemiology, Clinical Manifestations, Diagnosis, And Management, Nathaniel Kipker, Kaitlyn Alessi, Marko Bojkovic, Inderbir Padda, Mayur S. Parmar Apr 2023

Neurological-Type Wilson Disease: Epidemiology, Clinical Manifestations, Diagnosis, And Management, Nathaniel Kipker, Kaitlyn Alessi, Marko Bojkovic, Inderbir Padda, Mayur S. Parmar

HPD Articles

Wilson disease (WD) is a complex metabolic disorder caused by disruptions to copper regulation within the body, leading to an unregulated accumulation of copper within various tissues. A less understood organ affected by the collection of copper is the brain, which further leads to the generation of oxygen-free radicals and resultant demyelination. Healthcare providers must keep the neurological form of WD in their list of differentials when patients present with diverse neurological manifestations. The initial step to diagnosis will be to distinguish the characteristic disease presentation with a thorough history and physical and neurological examination. A high clinical disease suspicion …


A Case Of Transverse Myelitis Secondary To Covid-19 Infection, Rahul Borra, Neal T. Patel, Raheel Shaikh, Mayur S. Parmar, Sujatha Borra Dec 2022

A Case Of Transverse Myelitis Secondary To Covid-19 Infection, Rahul Borra, Neal T. Patel, Raheel Shaikh, Mayur S. Parmar, Sujatha Borra

HPD Articles

Infection with COVID-19 (SARS-CoV-2) is associated with a variety of generalized and specific symptoms, including neurological complications of both the peripheral and central nervous systems. In this case report, we present the case of a previously healthy 55-year-old woman who was diagnosed with transverse myelitis following a previous infection with COVID-19. MRI showed progressive demyelination of the cervical and thoracic spinal cord, and cerebrospinal fluid (CSF) showed increased levels of protein and red blood cells and no markers of infection, including negative polymerase chain reaction (PCR) for COVID-19 antibodies. The patient was treated with a course of methylprednisolone, multiple treatments …


Poststroke Seizure And Epilepsy: A Review Of Incidence, Risk Factors, Diagnosis, Pathophysiology, And Pharmacological Therapies, Joseph Phan, Mario Ramos, Theodore Soares, Mayur S. Parmar Oct 2022

Poststroke Seizure And Epilepsy: A Review Of Incidence, Risk Factors, Diagnosis, Pathophysiology, And Pharmacological Therapies, Joseph Phan, Mario Ramos, Theodore Soares, Mayur S. Parmar

HPD Articles

Stroke is the most common cause of epilepsy and ultimately leads to a decrease in the quality of life of those affected. Ischemic and hemorrhagic strokes can both lead to poststroke epilepsy (PSE). Significant risk factors for PSE include age less than 65 years, stroke severity measured by the National Institutes of Health Stroke Scale (NIHSS), cortical involvement, and genetic factors such as TRPM6 polymorphism. The diagnosis of PSE is made by using imaging modalities, blood biomarkers, and prognostic criteria. Electroencephalography (EEG) is currently the gold standard to diagnose PSE, while new combinations of modalities are being tested to increase …


Effects Of Covid-19 On Pregnant Women And Newborns: A Review, Bhavesh M. Patel, Deepesh Khanna, Siya Khanna, Vera Hapshy, Pragya Khanna, Payal Kahar, Mayur S. Parmar Oct 2022

Effects Of Covid-19 On Pregnant Women And Newborns: A Review, Bhavesh M. Patel, Deepesh Khanna, Siya Khanna, Vera Hapshy, Pragya Khanna, Payal Kahar, Mayur S. Parmar

HPD Articles

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a novel coronavirus originated in Wuhan, China, and spread all over the world, causing the worst pandemic of the century. The disease has a broad continuum of clinical presentations, from mild to life-threatening. The virus is highly contagious and transmittable to humans. Emerging evidence of its effects on pregnant women and newborns is inconsistent and ever-evolving. Therefore, the objective of this review is to compile the scientific literature on the effects of SARS-CoV-2 coronavirus on pregnancy, pregnant women, and newborns. Data were obtained by several authors using PubMed, MEDLINE, Google Scholar, and Web …


A Review Of Covid-19 In Relation To Metabolic Syndrome: Obesity, Hypertension, Diabetes, And Dyslipidemia, Elias Makhoul, Joseph L. Aklinski, Jesse Miller, Cara Leonard, Sean Backer, Payal Kahar, Mayur S. Parmar, Deepesh Khanna Jul 2022

A Review Of Covid-19 In Relation To Metabolic Syndrome: Obesity, Hypertension, Diabetes, And Dyslipidemia, Elias Makhoul, Joseph L. Aklinski, Jesse Miller, Cara Leonard, Sean Backer, Payal Kahar, Mayur S. Parmar, Deepesh Khanna

HPD Articles

Although severe cases and mortality of coronavirus disease 2019 (COVID-19) are proportionally infrequent, these cases are strongly linked to patients with conditions of metabolic syndrome (obesity, hypertension, diabetes, and dyslipidemia). However, the pathophysiology of COVID-19 in relation to metabolic syndrome is not well understood. Thus, the goal of this secondary literature review was to examine the relationship between severe acute respiratory syndrome (SARS-CoV-2) infection and the individual conditions of metabolic syndrome. The objective of this secondary literature review was achieved by examining primary studies, case studies, and other secondary studies, to obtain a comprehensive perspective of theories and observations of …


Body Mass Index (Bmi): A Screening Tool Analysis, Deepesh Khanna, Cadynce Peltzer, Payal Kahar, Mayur S. Parmar Feb 2022

Body Mass Index (Bmi): A Screening Tool Analysis, Deepesh Khanna, Cadynce Peltzer, Payal Kahar, Mayur S. Parmar

HPD Articles

Body mass index (BMI), a measurement based on a person's height and weight, allows the classification of individuals into categories such as obese or overweight. With these classifications, we can assess risk for hypertension, diabetes, cancer, hypercholesterolemia, and other chronic diseases. Furthermore, childhood BMI serves as a prediction method for health and disease later in life. Along with BMI, researchers also study waist circumference and waist-to-hip ratio in correlation with the above-mentioned chronic illnesses. This brief review explores the associations between body mass index, waist circumference, and the waist-hip ratio as measurements and their capability as predictors for persistent conditions …


Poststroke Seizure And Epilepsy: A Review Of Incidence, Risk Factors, Diagnosis, Pathophysiology, And Pharmacological Therapies, Joseph Phan, Mario Ramos, Theodore Soares, Mayur S. Parmar Jan 2022

Poststroke Seizure And Epilepsy: A Review Of Incidence, Risk Factors, Diagnosis, Pathophysiology, And Pharmacological Therapies, Joseph Phan, Mario Ramos, Theodore Soares, Mayur S. Parmar

HPD Articles

Stroke is the most common cause of epilepsy and ultimately leads to a decrease in the quality of life of those affected. Ischemic and hemorrhagic strokes can both lead to poststroke epilepsy (PSE). Significant risk factors for PSE include age < 65age less than 65 years, stroke severity measured by the National Institutes of Health Stroke Scale (NIHSS), cortical involvement, and genetic factors such as TRPM6 polymorphism. The diagnosis of PSE is made by using imaging modalities, blood biomarkers, and prognostic criteria. Electroencephalography (EEG) is currently the gold standard to diagnose PSE, while new combinations of modalities are being tested to increase diagnostic specificity. This literature review uncovers a newly found mechanism for the pathology of poststroke epilepsy. The pathogenesis of early-onset and late-onset is characterized by sequelae of neuronal cellular hypoxia and disruption of the blood-brain barrier, respectively. Interleukin-6 is responsible for increasing the activity of glial cells, causing gliosis and hyperexcitability of neurons. Epinephrine, high-mobility group protein B1, downregulation of CD32, and upregulation of HLA-DR impact the pathology of poststroke epilepsy by inhibiting the normal neuronal immune response. Decreased levels of neuropeptide Y, a neurotransmitter, act through multiple unique mechanisms, such as inhibiting intracellular Ca accumulation and acting as an anti-inflammatory, also implemented in the worsening progression of poststroke epilepsy. Additionally, CA1 hippocampal resonant neurons that increase theta oscillation are associated with poststroke epilepsy. Hypertensive small vessel disease may also have an implication in the temporal lobe epilepsy by causing occult microinfarctions. Furthermore, this review highlights the potential use of statins as primary prophylaxis against PSE, with multiple studies demonstrating a reduction in incidence using statins alone, statins in combination with antiepileptic drugs (AEDs), and statins with aspirin. The evidence strongly suggests that the second generation AEDs are a superior treatment method for PSE. Data from numerous studies demonstrate their relative lack of significant drug interactions, increased tolerability, and potential superiority in maintaining seizure-free status.


The Link Between Diabetes Mellitus And Tau Hyperphosphorylation: Implications For Risk Of Alzheimer's Disease, Amy L. Hobday, Mayur S. Parmar Sep 2021

The Link Between Diabetes Mellitus And Tau Hyperphosphorylation: Implications For Risk Of Alzheimer's Disease, Amy L. Hobday, Mayur S. Parmar

HPD Articles

Diabetes mellitus (DM) is characterized by hyperglycemia caused by a lack of insulin, insulin resistance, or both. It is associated with the development of secondary complications resulting in several comorbidities. Recent studies have revealed an increased risk of developing cognitive dysfunction or dementia in diabetes patients. Diabetes mellitus is considered a risk factor for many neurodegenerative diseases, including Alzheimer's disease (AD). There is increasing evidence to support a link between DM and AD. Studies have shown the dysfunction of insulin signaling in the brain, resulting in increased tau protein phosphorylation (hyperphosphorylation), a hallmark and biomarker of AD pathology, leading to …


Epidemiology, Pathogenesis, And Clinical Manifestations Of Acute Esophageal Necrosis In Adults, Obaid Rehman, Urooj Jaferi, Inderbir Padda, Nimrat Khehra, Harshan Atwal, Mayur Parmar Jul 2021

Epidemiology, Pathogenesis, And Clinical Manifestations Of Acute Esophageal Necrosis In Adults, Obaid Rehman, Urooj Jaferi, Inderbir Padda, Nimrat Khehra, Harshan Atwal, Mayur Parmar

HPD Articles

Acute esophageal necrosis (AEN), also termed "black esophagus," is a unique and uncommon occurrence observed in severely sick patients. Other terminologies include acute necrotizing esophagitis and Gurvits syndrome. This condition is described as a darkened distal third of the esophagus observed on endoscopy and presents as an upper gastrointestinal (GI) bleed, difficulty swallowing, abdominal pain, fever, syncope, nausea, and vomiting. The etiology of AEN has been linked to several possibilities, such as excessive gastric acid reflux, hypoperfusion, and ischemia due to impaired vascular supply and hemodynamic instability. Risk factors include increased age, sex (male), heart disease, hemodynamic insufficiency, alcohol use, …


An Investigation Into The Relationships Between Bullying, Discrimination, Burnout And Patient Safety In Nurses And Midwives: Is Burnout A Mediator?, Judith Johnson, Lorraine Cameron, Lucy Mitchinson, Mayur Parmar, Gail Opio-Te, Gemma Louch, Angela Grange Dec 2019

An Investigation Into The Relationships Between Bullying, Discrimination, Burnout And Patient Safety In Nurses And Midwives: Is Burnout A Mediator?, Judith Johnson, Lorraine Cameron, Lucy Mitchinson, Mayur Parmar, Gail Opio-Te, Gemma Louch, Angela Grange

HPD Articles

BACKGROUND: Bullying and discrimination may be indirectly associated with patient safety via their contribution to burnout, but research has yet to establish this. AIMS: The aims of this study were to investigate the relationships between workplace bullying, perceived discrimination, levels of burnout and patient safety perceptions in nurses and midwives and to assess whether bullying and discrimination were more frequently experienced by Black, Asian and minority ethnic than White nurses and midwives. METHODS: In total, 528 nurses and midwives were recruited from four hospitals in the United Kingdom to complete a cross-sectional survey between February and March 2017. The survey …


Resveratrol And Pinostilbene Confer Neuroprotection Against Aging-Related Deficits Through An Erk1/2-Dependent Mechanism, Erika N. Allen, Sneha Potdar, Victor Tapias, Mayur Parmar, Cassia S. Mizuno, Agnes Rimando, Jane E. Cavanaugh Apr 2018

Resveratrol And Pinostilbene Confer Neuroprotection Against Aging-Related Deficits Through An Erk1/2-Dependent Mechanism, Erika N. Allen, Sneha Potdar, Victor Tapias, Mayur Parmar, Cassia S. Mizuno, Agnes Rimando, Jane E. Cavanaugh

HPD Articles

Age-related declines in motor function may be due, in part, to an increase in oxidative stress in the aging brain leading to dopamine (DA) neuronal cell death. In this study, we examined the neuroprotective effects of natural antioxidants resveratrol and pinostilbene against age-related DAergic cell death and motor dysfunction using SH-SY5Y neuroblastoma cells and young, middle-aged, and old male C57BL/6 mice. Resveratrol and pinostilbene protected SH-SY5Y cells from a DA-induced decrease in cell viability. Dietary supplementation with resveratrol and pinostilbene inhibited the decline of motor function observed with age. While DA and its metabolites (DOPAC and HVA), dopamine transporter, and …


The Er Retention Protein Rer1 Promotes Alpha-Synuclein Degradation Via The Proteasome, Hyo-Jin Park, Daniel Ryu, Mayur Parmar, Benoit I. Giasson, Nikolaus R. Mcfarland Jan 2017

The Er Retention Protein Rer1 Promotes Alpha-Synuclein Degradation Via The Proteasome, Hyo-Jin Park, Daniel Ryu, Mayur Parmar, Benoit I. Giasson, Nikolaus R. Mcfarland

HPD Articles

Abnormal accumulation of α-synuclein (αSyn) has been linked to endoplasmic-reticulum (ER) stress, defective intracellular protein/vesicle trafficking, and cytotoxicity. Targeting factors involved in ER-related protein processing and trafficking may, therefore, be a key to modulating αSyn levels and associated toxicity. Recently retention in endoplasmic reticulum 1 (RER1) has been identified as an important ER retrieval/retention factor for Alzheimer's disease proteins and negatively regulates amyloid-β peptide levels. Here, we hypothesized that RER1 might also play an important role in retention/retrieval of αSyn and mediate levels. We expressed RER1 and a C-terminal mutant RER1Δ25, which lacks the ER retention/retrieval function, in HEK293 and …


Vectored Intracerebral Immunization With The Anti-Tau Monoclonal Antibody Phf1 Markedly Reduces Tau Pathology In Mutant Tau Transgenic Mice, Wencheng Liu, Lingzhi Zhao, Brittany Blackman, Mayur Parmar, Man Ying Wong, Thomas Woo, Fangmin Yu, Maria J. Chiuchiolo, Dolan Sondhi, Stephen M. Kaminsky, Ronald G. Crystal, Steven M. Paul Dec 2016

Vectored Intracerebral Immunization With The Anti-Tau Monoclonal Antibody Phf1 Markedly Reduces Tau Pathology In Mutant Tau Transgenic Mice, Wencheng Liu, Lingzhi Zhao, Brittany Blackman, Mayur Parmar, Man Ying Wong, Thomas Woo, Fangmin Yu, Maria J. Chiuchiolo, Dolan Sondhi, Stephen M. Kaminsky, Ronald G. Crystal, Steven M. Paul

HPD Articles

UNLABELLED: Passive immunization with anti-tau monoclonal antibodies has been shown by several laboratories to reduce age-dependent tau pathology and neurodegeneration in mutant tau transgenic mice. These studies have used repeated high weekly doses of various tau antibodies administered systemically for several months and have reported reduced tau pathology of ∼40-50% in various brain regions. Here we show that direct intrahippocampal administration of the adeno-associated virus (AAV)-vectored anti-phospho-tau antibody PHF1 to P301S tau transgenic mice results in high and durable antibody expression, primarily in neurons. Hippocampal antibody levels achieved after AAV delivery were ∼50-fold more than those reported following repeated systemic …


Effect Of Westernization On Oral Health Among College Students Of Udaipur City, India, Piyush Pujara, Neeraj Sharma, Rujul Jayeshkumar Parikh, Maitri Shah, Shachi Parikh, Vivek Vadera, Manpreet Kaur, Isha Makkar, Mayur Parmar, Pratik Rupakar, Shrikant Patel Jan 2016

Effect Of Westernization On Oral Health Among College Students Of Udaipur City, India, Piyush Pujara, Neeraj Sharma, Rujul Jayeshkumar Parikh, Maitri Shah, Shachi Parikh, Vivek Vadera, Manpreet Kaur, Isha Makkar, Mayur Parmar, Pratik Rupakar, Shrikant Patel

HPD Articles

BACKGROUND: There is overwhelming evidence that periodontal disease and dental caries affect the majority of populations and that western culture and lifestyle may have a profound influence on oral health, especially in adults. The present study was performed to determine the effect of westernization on the oral health of college students of Udaipur City, Rajasthan. METHODS: A descriptive cross-sectional study was conducted among students attending various professional and non-professional bachelor's degree colleges of Udaipur City, Rajasthan, India, from March 2013 to May 2013. Eight hundred students were selected based on a two-stage random sampling procedure. Westernization was assessed by a …


Role Of Erk1, 2, And 5 In Dopamine Neuron Survival During Aging, Mayur S. Parmar, Juliann D. Jaumotte, Stephanie L. Wyrostek, Michael J. Zigmond, Jane E. Cavanaugh Mar 2014

Role Of Erk1, 2, And 5 In Dopamine Neuron Survival During Aging, Mayur S. Parmar, Juliann D. Jaumotte, Stephanie L. Wyrostek, Michael J. Zigmond, Jane E. Cavanaugh

HPD Articles

Extracellular signal-regulated kinases (ERKs) 1, 2, and 5 have been shown to play distinct roles in proliferation, differentiation, and neuronal viability. In this study, we examined ERK1, 2, and 5 expression and activation in the substantia nigra (SN), striatum (STR), and ventral tegmental area (VTA) during aging. An age-related decrease in phosphorylated ERK5 was observed in the SN and STR, whereas an increase in total ERK1 was observed in all 3 regions. In primary cultures of the SN and VTA, inhibition of ERK5 but not ERK1 and 2 decreased dopamine neuronal viability significantly. These data suggest that ERK5 is essential …


Formulation And Characterization Of Lipid-Based Drug Delivery System Of Raloxifene-Microemulsion And Self-Microemulsifying Drug Delivery System, Hetal Thakkar, Jitesh Nangesh, Mayur Parmar, Divyakant Patel Jul 2011

Formulation And Characterization Of Lipid-Based Drug Delivery System Of Raloxifene-Microemulsion And Self-Microemulsifying Drug Delivery System, Hetal Thakkar, Jitesh Nangesh, Mayur Parmar, Divyakant Patel

HPD Articles

BACKGROUND: Raloxifene, a second-generation selective estrogen receptor modulator (SERM) used to prevent osteoporosis in postmenopausal women is administered orally in the form of a tablet. The absolute bioavailability of the drug is only 2% because of extensive hepatic first-pass metabolism. Lipid-based formulations are reported to reduce the first-pass metabolism by promoting its lymphatic uptake. MATERIALS AND METHODS: In the present investigation, microemulsion and Self-Microemulsifying Drug Delivery System (SMEDDS) formulations of Raloxifene were prepared. The prepared formulations were characterized for drug loading, size, transparency, zeta potential, Transmission Electron Microscopy (TEM) and in vitro intestinal permeability. RESULTS: The results indicated that high …