Anatomy Commons^™

Social Buffering By Unfamiliar Adult Males In Periadolescent Guinea Pigs: The Effects On Hpa Axis Activity And Fos Induction In The Medial Prefrontal Cortex, Alexander Bertke

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In the guinea pig, the ability of the mother’s presence to buffer hypothalamic-pituitary- adrenal (HPA) axis activation in her young during exposure to stressful stimuli has been well documented. Under similar testing conditions, other conspecifics (littermates, other adult females) are less effective in doing so. The effect does seem to wane with age but is still present to a significant degree in offspring approaching adolescence. However, we recently observed that an unfamiliar adult male buffered HPA axis activation and increased Fos expression in the prefrontal cortex of preweaning infants exposed to a novel enclosure at both 60 and 120 minutes …

Evaluating Sex Related Differences In The Osteocyte Lacunar Canalicular Network Across The Lifespan: A Confocal Laser Scanning Microscopy Approach, Gina Tubo

Williams Honors College, Honors Research Projects

Bone is a dynamic tissue with the ability to remodel itself. This capability is facilitated via communication mechanisms through the osteocyte-lacunar-canalicular (LCN) network. Osteocytes are bone cells housed in small, hollow spaces called lacunae. Lacunae are linked by canals called canaliculi. A diminished network can lead to the inability to form bone following breakdown. A decrease in osteocyte-LCN density has been shown to correlate with aging (Ashique et al. 2017). This decline leads to the development of osteoporosis. Osteoporosis preferentially affects women. Prior studies have shown that women older than 50 are four times more likely to be osteoporotic when …

Assessment Of Pseudo-Continuous Arterial Spin Labeling (Pcasl) Inter-Session Reliability In The Quantification Of Cerebral Perfusion, Mohammad Ahmad Awad

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Arterial spin labeling (ASL) is a magnetic resonance imaging (MRI) technique used for measuring cerebral blood flow (CBF) in a completely non-ionizing and non invasive fashion. ASL is useful in perfusion studies on healthy adult & pediatric subjects, individuals who need multiple follow-ups, and patients with varying cerebrovascular diseases where changes in CBF can be used as an indicator of tissue viability. We used a variation of the ASL technique known as pseudo-continuous ASL (pCASL). This form of ASL is the clinical standard (Alsop et al., 2015). However, it is not well documented the that pCASL is reliable between sessions …

Effect Of Hybrid/Complex N-Glycosylation On Cardiac Voltage-Gated Ion Channel Expression, Austin R. Parrish

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Dilated cardiomyopathy (DCM) is one the most common forms of heart failure, with the majority of cases being idiopathic. Dr. Bennett’s laboratory previously showed that deletion of the Mgat1 gene in cardiomyocytes only (Mgat1KO) is sufficient to cause DCM leading to heart failure and early death. The Mgat1 gene product, GlcNAcT1, is responsible for initiating the formation of hybrid/complex N-glycosylation. These data suggest a link between abnormal glycosylation and heart disease; however, there is a mystery of how the specific changes in glycosylation contribute to heart disease etiology and progression. The proper function and gating of voltage-gated Na+ channels (Nav) …

Use Of Magnetic Resonance Image Registration To Estimate Displacement In The Human Earcanal Due To The Insertion Of In-Ear Devices, Simon Benacchio, Olivier Doutres, Arthur Varoquaux, Éric Wagnac, Arnaud Le Troter, Virginie Callot, Franck Sgard

Études primaires

In-ear devices are used in a wide range of applications for which the device's usability and/or efficiency is strongly related to comfort aspects that are influenced by the mechanical interaction between the device and the walls of the earcanal. Although the displacement of the earcanal walls due to the insertion of the device is an important characteristic of this interaction, existing studies on this subject are very limited. This paper proposes a method to estimate this displacement in vivo using a registration technique on magnetic resonance images. The amplitude, the location and the direction of the earcanal wall displacement are …

Calpain-Calpastatin System In Peripheral Nerve Myelination And Demyelination, Domenica Elizabeth Drouet Saltos

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Myelin is the structure formed by glial cells that electrically insulates axons aiding in propagation of action potentials. Disruption of myelin sheath (demyelination) is common to neurological diseases, such as multiple sclerosis (MS). The calcium-dependent protease, calpain, is known to modulate myelination during central nervous system (CNS) development. Endogenous calpain inhibitor, calpastatin, regulates calpain activity. The calpain-calpastatin system has been implicated in the CNS demyelination occurring in diseases. Charcot-Marie-Tooth disease (CMT) is a hereditary demyelinating polyneuropathy affecting proper functioning of peripheral nerves, demonstrating the importance of myelin in the peripheral nervous system (PNS). However, calpain’s role in the mechanism(s) of …

Calcium Imaging Of Developing Proprioceptive Dorsal Root Ganglion Neurons, Kaitlyn Louise Parkes

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Proprioception is an important sensation capable due to proprioceptive sensory neuron afferents found in muscles in the periphery being processed by the central nervous system. The nervous system is a complex system that continues to develop and mature as an animal ages. Much is not known of proprioceptive neurons and how they develop with time. Calcium is an important molecule in maintaining action potentials and homeostasis in neurons which can be studied to understand a variety of things about a neuron. This study uses genetically encoded calcium indicators to tag parvalbumin positive cells in the dorsal root ganglion (DRG) in …

Description Of Motor Control Using Inverse Models, Anton Sobinov

Graduate Theses, Dissertations, and Problem Reports (ETD)

Humans can perform complicated movements like writing or running without giving them much thought. The scientific understanding of principles guiding the generation of these movements is incomplete. How the nervous system ensures stability or compensates for injury and constraints – are among the unanswered questions today. Furthermore, only through movement can a human impose their will and interact with the world around them. Damage to a part of the motor control system can lower a person’s quality of life. Understanding how the central nervous system (CNS) forms control signals and executes them helps with the construction of devices and rehabilitation …

The Revolution Will Be Open-Source: How 3d Bioprinting Can Change 3d Cell Culture, Robert D. Bruno, John Reid, Patrick C. Sachs

School of Medical Diagnostics & Translational Sciences Publications

(First paragraph) The development of three-dimensional culture scaffolds represents a revolutionary step forward for in vitro culture systems. Various synthetic and naturally occurring substrates have been developed that support 3D growth of cells. In most fields, including mammary gland biology and tumorigenesis, the two most common substrates used are the basement membrane rich extracellur matrix (ECM) isolated from EngelbrethHolm-Swarm (EHS) mouse sarcomas (e.g. Matrigel) and collagen extracted from rat-tails. The processes of 3D culture in these two substrates has remained unchanged for nearly half a century: cells are either mixed with unpolymerized matrix to disperse them randomly throughout the substrate …

Spag17 Deficiency Impairs Neuronal Cell Differentiation In Developing Brain, Olivia J. Choi

Theses and Dissertations

The development of the nervous system is a multi-level, time-sensitive process that relies heavily on cell differentiation. However, the molecular mechanisms that control brain development remain poorly understood. We generated a knockout (KO) mouse for the cilia associated gene Spag17. These animals develop hydrocephalus and enlarged ventricles consistent with the role of Spag17 in the motility of ependymal cilia. However, other phenotypes that cannot be explained by this role were also present. Recently, a mutation in Spag17 has been associated with brain malformations and severe intellectual disability in humans. Therefore, we hypothesized that Spag17 plays a crucial role in …

Illumination Of The Golgi Apparatus Of Pathogenic And Nonpathogenic Naegleria Species, Tyler M. Poe

Theses and Dissertations

In this study, Naegleria fowleri, a pathogenic amoeba and the causative agent of Primary Amebic Meningoencephalitis (PAM), was utilized to determine the presence or absence of classically conserved Golgi molecules featured in the expression of a Golgi apparatus. Previous studies concluded no Golgi expression via light microscopy and transmission electron microscopy, but a recent report on Naegleria gruberi indicated the presence of dispersed Golgi tubules. Non-pathogenic species of the Naegleria genus such as Naegleria gruberi 30540 and Naegleria lovaniensis 30569 were utilized in Western immunoblot analysis compared to reduced whole-cell lysate proteins of two strains of N. fowleri and …

Factors Affecting The Survival And Implantation Of Human Blastocysts Following Vitrification, Hamish Barblett

Theses: Doctorates and Masters

The increased cell numbers, presence of the blastocoel and rapid cell re-organisation have required the development of specific survival criteria post warm to effectively select the most viable blastocyst for transfer. Pre-freeze blastocyst expansion and post warm re-expansion have been shown to contribute significantly to the chances of an implantation and subsequent live birth. The aim of this study was to explore factors that influence the outcome of blastocyst transfers after vitrification and warming, and hopefully improve outcomes by further applying improvements in future cycles. Variables from 8 years of vitrified/warmed blastocysts were retrospectively compiled and analysed to determine the …

Real-Time Classification Of Multivariate Olfaction Data Using Spiking Neural Networks, Arnup Vanarse, Adam Osseiran, Alexander Rassau, Therese O'Sullivan, Jonny Lo, Amanda Devine

Research outputs 2014 to 2021

Recent studies in bioinspired artificial olfaction, especially those detailing the application of spike-based neuromorphic methods, have led to promising developments towards overcoming the limitations of traditional approaches, such as complexity in handling multivariate data, computational and power requirements, poor accuracy, and substantial delay for processing and classification of odors. Rank-order-based olfactory systems provide an interesting approach for detection of target gases by encoding multi-variate data generated by artificial olfactory systems into temporal signatures. However, the utilization of traditional pattern-matching methods and unpredictable shuffling of spikes in the rank-order impedes the performance of the system. In this paper, we present an …

A Hardware-Deployable Neuromorphic Solution For Encoding And Classification Of Electronic Nose Data, Anup Vanarse, Alexander Rassau, Peter Van Der Made

Research outputs 2014 to 2021

In several application domains, electronic nose systems employing conventional data processing approaches incur substantial power and computational costs and limitations, such as significant latency and poor accuracy for classification. Recent developments in spike-based bio-inspired approaches have delivered solutions for the highly accurate classification of multivariate sensor data with minimized computational and power requirements. Although these methods have addressed issues related to efficient data processing and classification accuracy, other areas, such as reducing the processing latency to support real-time application and deploying spike-based solutions on supported hardware, have yet to be studied in detail. Through this investigation, we proposed a spiking …

Eccrine Poroma: The Prominent Mimicker, Nahla Shihab, Inge Ade Kristanti, Adhimukti T. Sampurna, Larisa Paramitha Wibawa

Journal of General - Procedural Dermatology and Venereology Indonesia

Background: Eccrine poroma (EP) is an adnexal benign tumor arising from the eccrine duct epithelium. The appearance of EP can mimic benign and malignant skin tumors, thus often making the diagnosis delayed or inaccurate.

Case Illustration: We report two cases of EP, with clinical and dermoscopic features mimicking Bowen’s disease, verruca vulgaris, pyogenic granuloma, skin metastases of breast cancer, and amelanotic melanoma. Both patients were surgically excised and biopsied. Histopathology examination of both cases revealed eccrine poroma.

Discussion: Both cases showed similarity with the theories, that EP is most found in middle age population and its predilection …

Elevated Homeostatic Model Assessment Of Insulin Resistance Level Increases The Risk Of Acne, Stefani Nurhadi, Igaa Praharsini, Aagp Wiraguna

Journal of General - Procedural Dermatology and Venereology Indonesia

Background: Insulin resistance and high carbohydrate diets are currently considered to be influential in acne aetiology. Insulin is a hormone that does not only regulate the concentration of blood glucose but also affects the production of sebum and through the Insulin Growth Factor-1 (IGF-1) receptor stimulates androgen synthesis which will increase the proliferation of keratinocytes duct and the production of sebum in acne of the pilosebaceous.

Methods: This is a cross sectional observational analytic study involving 38 acne patients and 38 controls. This study aims to determine whether the increase in Homeostatic Model Assessment of Insulin Resistance …

Efficacy Of Low Level Laser Therapy In The Treatment Of Postherpetic Neuralgia, Lili Legiawati, Marsha Bianti

Journal of General - Procedural Dermatology and Venereology Indonesia

Background: Postherpetic neuralgia (PHN) is the most common complication of herpes zoster (HZ) and defined as pain that persists for more than 90 days after the onset of HZ rash. The chronic pain of PHN is debilitating and often associated with significant morbidity. It is a neuropathic pain and manifests as allodynia, hyperalgesia, or spontaneous pain. Although it is not considered to be life-threatening, sometime HZ is inadequately treated and may result in more severe PHN. Various treatment protocols for PHN are available; however, the result remains unsatisfactorily. The use of low level laser therapy (LLLT) in pain management …

Patients' Perceptions And Patient-Reported Outcomes In Progressive-Fibrosing Interstitial Lung Diseases, Jeffrey J. Swigris, Kevin K. Brown, Rayid Abdulqawi, Ketan Buch, Daniel F. Dilling, Dirk Koschel, Krishna Thavarajah, Rade Tomic, Yoshikazu Inoue

Internal Medicine Faculty Publications

The effects of interstitial lung disease (ILD) create a significant burden on patients, unsettling almost every domain of their lives, disrupting their physical and emotional well-being and impairing their quality of life (QoL). Because many ILDs are incurable, and there are limited reliably-effective, life-prolonging treatment options available, the focus of many therapeutic interventions has been on improving or maintaining how patients with ILD feel and function, and by extension, their QoL. Such patient-centred outcomes are best assessed by patients themselves through tools that capture their perceptions, which inherently incorporate their values and judgements. These patient-reported outcome measures (PROs) can be …

Diagnostic Procedures In Pediatric Dermatology, Arini Astasari Widodo, Githa Rahmayunita, Triana Agustin, Rinadewi Astriningrum

Journal of General - Procedural Dermatology and Venereology Indonesia

Diagnostic procedures in pediatric dermatology are different and significantly more challenging than those in adult patients, especially on how to approach the patients. We need to acknowledge that pediatric patients have unique anatomical, physiological, and psychological aspects. Compared to adults, children have smaller procedure area, are less cooperative, and more difficult to understand. For these reasons, we should perform diagnostic procedures on children cautiously. Having extensive knowledge in this field can facilitate us to carry out an ethical, efficient, targeted procedure with less risk. This article reviewed the most appropriate, most comfortable, and least invasive diagnostic procedures for children. Some …

Profile Of Vitiligo Patients And Distribution Of Narrowband-Uvb Therapy At Dr. Cipto Mangunkusumo General Hospital, Lis Surachmiati Suseno, Putu Martha Gerynda Sukma, Rahadi Rihatmadja, Triana Agustin, Githa Rahmayunita, Endi Novianto

Journal of General - Procedural Dermatology and Venereology Indonesia

Background: Vitiligo is a disease marked by depigmented macules. Prevalence of vitiligo varies between 0.1- 2.3% worldwide. The objectives of this study are to identify the socio-demographic profile of vitiligo patients and distribution of narrowband-UVB given as a treatment modality. However, in Indonesia, including at dr. Cipto Mangunkusumo General Hospital, there has not been any study on the profile of vitiligo patients. Therefore, a preliminary study on the patients’ profile would be very useful for healthcare providers in calculating the need for narrowband-UVB equipment and evaluation of its current use.

Methods: A retrospective descriptive study, using secondary data …

Cumulative Exposure To Solar Ultraviolet A & B Increases Apoptosis Of Peripheral Blood Cutaneous Lymphocyte Antigen (Cla)+ T-Lymphocytes In Outdoor Workers, Afif Nurul Hidayati, Saut Sahat Pohan, Widodo J. Pudjirahardjo, Isaac Effendy

Journal of General - Procedural Dermatology and Venereology Indonesia

Background: Exposure to ultraviolet A & B (UVA-UVB) plays a role in the survival of human life, but it may cause negative effects, such as immunosuppression and skin cancer. The effect of solar UVA-UVB exposure on apoptosis (Bax/Bcl-2 ratio) of peripheral blood cutaneous lymphocyte antigen (CLA)+ T-lymphocyte; the immune competent cells in the skin, has not been investigated. Apoptosis of peripheral blood CLA+ Tlymphocyte affects its function; which serves as the skin's resistance and is involved in infectious diseases, skin inflammation, and malignancies. This study observed the effect of solar UVA-UVB to apoptosis (Bax/Bcl2 ratio) of peripheral blood CLA+ …

Structured Diet And Exercise Guidance In Pregnancy To Improve Health In Women And Their Offspring: Study Protocol For The Be Healthy In Pregnancy (Bhip) Randomized Controlled Trial, Maude Perreault, Stephanie A. Atkinson, Michelle F. Mottola, Stuart M. Phillips, Keyna Bracken, Eileen K. Hutton, Feng Xie, David Meyre, Rita E. Morassut, Harry Prapavessis, Lehana Thabane

Anatomy and Cell Biology Publications

BackgroundEvidence from epidemiological and animal studies support the concept of programming fetal, neonatal, and adult health in response to in utero exposures such as maternal obesity and lifestyle variables. Excess gestational weight gain (GWG), maternal physical activity, and sub-optimal and excess nutrition during pregnancy may program the offspring's risk of obesity. Maternal intake of dairy foods rich in high-quality proteins, calcium, and vitamin D may influence later bone health status. Current clinical practice guidelines for managing GWG are not founded on randomized trials and lack specific active intervention ingredients. The Be Healthy in Pregnancy (BHIP) study is a randomized controlled …

Functional Outcomes In Early (T1/T2) Supraglottic Cancer: A Systematic Review, Benjamin Van Der Woerd, Krupal B. Patel, Anthony C. Nichols, Kevin Fung, John Yoo, Danielle S. Macneil

Anatomy and Cell Biology Publications

ObjectivesOrgan preserving surgery (OPS) and radiotherapy (RT) are both accepted treatment options for early stage supraglottic cancer (SGC). Radiation has supplanted surgery in most cases, because of the perception that surgery results in poorer functional outcomes. However, evidence suggests that OPS with a neck dissection may be associated with improved survival. Our objective was to conduct a systematic review of the literature to compare functional outcomes of OPS and RT for early SGC.MethodsWe searched Medline, EMBASE and Cochrane Central Register of Controlled Trials to identify studies. Studies were included if they reported functional outcomes on 10 or more patients with …

Manganese-Enhanced Magnetic Resonance Imaging: Overview And Central Nervous System Applications With A Focus On Neurodegeneration, Ryan A. Cloyd, Shon A. Koren, Jose F. Abisambra

Physiology Faculty Publications

Manganese-enhanced magnetic resonance imaging (MEMRI) rose to prominence in the 1990s as a sensitive approach to high contrast imaging. Following the discovery of manganese conductance through calcium-permeable channels, MEMRI applications expanded to include functional imaging in the central nervous system (CNS) and other body systems. MEMRI has since been employed in the investigation of physiology in many animal models and in humans. Here, we review historical perspectives that follow the evolution of applied MRI research into MEMRI with particular focus on its potential toxicity. Furthermore, we discuss the more current in vivo investigative uses of MEMRI in CNS investigations and …

Correction To: Hif Prolyl Hydroxylase Inhibition Protects Skeletal Muscle From Eccentric Contraction Induced Injury, Andrew N. Billin, Samuel E. Honeycutt, Alan V. Mcdougal, Jaclyn P. Kerr, Zhe Chen, Johannes M. Freudenberg, Deepak K. Rajpal, Guizhen Luo, Henning Fritz Kramer, Robert S. Geske, Frank Fang, Bert Yao, Richard V. Clark, John Lepore, Alex Cobitz, Ram Miller, Kazunori Nosaka, Aaron C. Hinken, Alan J. Russell

Research outputs 2014 to 2021

Following publication of the original article [1], the authors flagged that there is a discrepancy with the Availability of data and materials statement on page 12 of the article.

Coarctation Of Aorta In Children., Arpan R. Doshi, Sathish Chikkabyrappa

Manuscripts, Articles, Book Chapters and Other Papers

Coarctation of aorta (CoA) is a discrete narrowing in aorta causing obstruction to the flow of blood. It accounts for 6-8% of all congenital heart diseases. With advances in fetal echocardiography rate of prenatal diagnosis of coarctation of aorta has improved but it still remains a challenging diagnosis to make prenatally. Transthoracic echocardiography is mainstay of making initial diagnosis and routine follow-up. Cardiac magnetic resonance imaging (MRI) and computed tomography (CT) are great advanced imaging tools for two-dimensional and three-dimensional imaging of aortic arch in complex cases. Based on type of coarctation, size of patient, severity of lesion, and associated …

Innocent Heart Murmur., Arpan R. Doshi

Manuscripts, Articles, Book Chapters and Other Papers

Heart murmur is the most common reason for a referral to a pediatric cardiologist. Virtually all children have a heart murmur during their childhood. Less than 1% of murmurs are pathological in children. Innocent/functional heart murmur is the most common type of heart murmur. There are multiple theories proposed to identify etiology of innocent heart murmur with varying consensus, but everybody agrees that innocent heart murmur does not carry any morbidity or mortality risk. Even today, heart murmur is associated with high physician uncertainty and parental anxiety. Extensive cardiac evaluation for such a benign finding is also associated with high …

Survival Of Patients With Subglottic Squamous Cell Carcinoma, S D. Macneil, K Patel, K Liu, S Shariff, J Yoo, A Nichols, K Fung, A X Garg

Anatomy and Cell Biology Publications

Objective: Subglottic squamous cell carcinoma is a rare subsite of laryngeal cancer that behaves more aggressively and portends a worse prognosis. Using a population-based cancer registry, our objective was to report overall survival (OS) and laryngectomy-free survival (LFS) in patients diagnosed with subglottic squamous cell carcinoma, and to determine whether primary laryngectomy results in improved survival.

Methods: This retrospective population-based study considered patients with a new diagnosis of squamous cell carcinoma in the province of Ontario over a 15-year period (1995-2009). The Ontario Cancer Registry was examined for patients with the diagnosis of interest during the period …

Anatomy 204l: Laboratory Manual (Second Edition), Ethan Snow

Open Educational Resources

This laboratory manual is designed for undergraduate anatomy labs. It includes self-assessment resources and examination set up guides.

Femoroacetabular Impingement As A Complication Of Acetabular Fracture Fixation, David A. Zuelzer, Christopher B. Hayes, Raymond D. Wright, Stephen T. Duncan

Orthopaedic Surgery and Sports Medicine Faculty Publications

Case

We present the case of a thirteen-year-old female who sustained a posterior wall acetabular fracture dislocation. She underwent urgent closed reduction and subsequent uncomplicated open reduction and internal fixation. Post reduction computed tomography demonstrated a concentrically reduced hip joint with no evidence of femoroacetabular impingement (FAI). She subsequently healed her fracture and returned to running activities; however, one year later presented with aching pain in her thigh. Radiographs demonstrated the development of a large osseous prominence on her anterolateral femoral neck consistent with femoroacetabular impingement. Based on these findings she was evaluated by a hip preservation specialist. She subsequently …