scholarly journals Role of Partial Splenectomy in Hematologic Childhood Disorders

Pathogens ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1436
Author(s):  
Giorgio Attina’ ◽  
Silvia Triarico ◽  
Alberto Romano ◽  
Palma Maurizi ◽  
Stefano Mastrangelo ◽  
...  
Keyword(s):  
Blood Circulation ◽  
Lymphoid Organ ◽  
Partial Splenectomy ◽  
Surgical Indications ◽  
Childhood Disorders ◽  
Hematologic Disorders ◽  
Infectious Risk ◽  
Serious Infections ◽  
Total Splenectomy

The spleen is a secondary lymphoid organ that belongs to the reticular-endothelial system, directly connected to blood circulation. The spleen is greatly involved in the immune response, especially against capsulated bacteria. Splenectomy plays a fundamental role in the treatment of numerous pediatric hematologic disorders. Taking into account all the possible complications (especially infections) linked to this procedure, alternatives to total splenectomy have been sought. Partial splenectomy has been proposed as a treatment that allows the reduction of infectious risk. This approach has proven safe and feasible in most patients, but multicentric and prospective studies are necessary to more accurately define the indications for performing partial splenectomy. However, vaccinations and antibiotic prophylaxis remain fundamental for preventing serious infections, even in the case of partial splenectomy. We review anatomical and functional properties of the spleen, with a focus on medical or surgical indications to splenectomy, aiming to give practical educational information to patients and their families after splenectomy. Furthermore, we discuss the feasibility of partial splenectomy in children with hematologic diseases who require splenectomy.

Partial Splenectomy for Hereditary Spherocytosis—What Do We Know and What Do We Need to Know?

2009 ◽  
Vol 02 ◽  
pp. 9
Author(s):  
Elisabeth T Tracy ◽  
Henry E Rice ◽  
◽  
Keyword(s):  
Clinical Data ◽  
Hereditary Spherocytosis ◽  
Partial Splenectomy ◽  
Children At Risk ◽  
Promising Alternative ◽  
Splenic Function ◽  
Growing Body ◽  
Postsplenectomy Sepsis ◽  
Total Splenectomy

Partial splenectomy is an alternative to total splenctomy for the treatment of children with hereditary spherocytosis (HS) and other congenital hemolytic anemias. Total splenectomy effectively controls the symptoms of the disease, but places children at risk for overwhelming postsplenectomy sepsis (OPSI), as well as other severe complications. A growing body of data suggests that partial splenectomy provides acceptable hematological outcomes compared with total splenectomy while preserving splenic function. In this article we briefly review the rationale for partial splenectomy, parameters to evaluate splenic function, and recent clinical data on outcomes after partial splenectomy. Although many questions remain regarding the role of partial splenectomy, it may be a promising alternative to total splenectomy in children with HS and other congential hemolytic anemias.

Hypothetical Role of Growth Factors to Reduce Intervertebral Disc Degeneration Significantly through Trained Biological Transformations

2020 ◽  
Vol 26 ◽  
Author(s):  
Cristian Muresanu ◽  
Siva G. Somasundaram ◽  
Sergey V. Vissarionov ◽  
Liliya V. Gavryushova ◽  
Vladimir N. Nikolenko ◽  
...  
Keyword(s):  
Growth Factors ◽  
Blood Circulation ◽  
Seminal Fluid ◽  
Prostate Gland ◽  
The Body ◽  
Personal Experiences ◽  
Biological Transformation ◽  
The Mind

Background: From the evidence of failed injection-based growth factor therapies, it has been proposed that a naturally triggered uninterrupted blood circulation of the growth factors would be superior. Objective: We seek to stimulate discussions and more research about the possibility of using the already available growth factors found in the prostate gland and endometrium by starting a novel educable physiology, known as biological transformations controlled by the mind. Methods: We summarized the stretch-gated ion channel mechanism of the cell membrane, and offer several practical methods that can be applied by anyone, in order to stimulate and enhance the blood circulation of the growth factors from the seminal fluid to sites throughout the body. This details the practical application of our earlier published studies about biological transformations. Results: A previously reported single-patient case study has been extended, adding more from his personal experiences continually improving this novel physiological training and extending the ideas from our earlier findings in detail. Conclusion: The biological transformation findings demonstrate the need additional research to establish the benefits of these natural therapies to repair and rejuvenate tissues affected by various chronic diseases or aging processes.

scholarly journals PHYSICAL ACTIVITY TO IMPROVE THE PHYSIOLOGICAL INDEX OF CARDIOVASCULAR EFFECT

2021 ◽  
Vol 27 (8) ◽  
pp. 773-775
Author(s):  
Mei Qin ◽  
Cunshan Peng ◽  
Qingke Wang
Keyword(s):  
Physical Exercise ◽  
Vascular Function ◽  
Blood Circulation ◽  
Exercise Prescription ◽  
Critical Role ◽  
Level Of Evidence ◽  
Physiological Indicators ◽  
Lung Capacity ◽  
Contractility Of The Heart

ABSTRACT Introduction: Physical exercise can enhance the body's ability to adapt to the external environment and improve the contractility of the heart. At the same time, it can help improve blood circulation and increase lung capacity. Objective: This article explores the critical role of sports in the prevention of cardiovascular diseases. Methods: This article conducts tests on related physiological indicators such as hemodynamic rheology for students who regularly participate in physical exercise and those who do not participate in physical exercise. Results: Students who exercise regularly and those who do not exercise mobilize faster cardiovascular function at the beginning of work. This shows good adaptability to sports. Conclusion: The use of fitness exercise prescription by students who exercise comprehensively has the most pronounced effect on improving vascular function. Level of evidence II; Therapeutic studies - investigation of treatment results.

scholarly journals The human microbiome in hematopoiesis and hematologic disorders

Blood ◽  
2015 ◽  
Vol 126 (3) ◽  
pp. 311-318 ◽  
Author(s):  
Veronica E. Manzo ◽  
Ami S. Bhatt
Keyword(s):  
Community Structure ◽  
Human Health ◽  
Ribosomal Rna ◽  
Human Microbiome ◽  
Human Cells ◽  
Metagenomic Sequencing ◽  
Hematologic Disorders ◽  
Hematologic Diseases ◽  
Shotgun Metagenomic Sequencing

AbstractHumans are now understood to be in complex symbiosis with a diverse ecosystem of microbial organisms, including bacteria, viruses, and fungi. Efforts to characterize the role of these microorganisms, commonly referred as the microbiota, in human health have sought to answer the fundamental questions of what organisms are present, how are they functioning to interact with human cells, and by what mechanism are these interactions occurring. In this review, we describe recent efforts to describe the microbiota in healthy and diseased individuals, summarize the role of various molecular technologies (ranging from 16S ribosomal RNA to shotgun metagenomic sequencing) in enumerating the community structure of the microbiota, and explore known interactions between the microbiota and humans, with a focus on the microbiota’s role in hematopoiesis and hematologic diseases.

scholarly journals A functional spleen contributes to afucosylated IgG in humans

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Iwona Wojcik ◽  
David E. Schmidt ◽  
Lisa A. de Neef ◽  
Minke A. E. Rab ◽  
Bob Meek ◽  
...  
Keyword(s):  
Immune Responses ◽  
Viral Infections ◽  
Immune Cell ◽  
Lymphoid Organ ◽  
Immune Effector ◽  
Adaptive Immune ◽  
Wide Range ◽  
Humoral Responses ◽  
First Time

AbstractAs a lymphoid organ, the spleen hosts a wide range of immune cell populations, which not only remove blood-borne antigens, but also generate and regulate antigen-specific immune responses. In particular, the splenic microenvironment has been demonstrated to play a prominent role in adaptive immune responses to enveloped viral infections and alloantigens. During both types of immunizations, antigen-specific immunoglobulins G (IgGs) have been characterized by the reduced amount of fucose present on N-linked glycans of the fragment crystallizable (Fc) region. These glycans are essential for mediating the induction of immune effector functions. Therefore, we hypothesized that a spleen may modulate humoral responses and serve as a preferential site for afucosylated IgG responses, which potentially play a role in immune thrombocytopenia (ITP) pathogenesis. To determine the role of the spleen in IgG-Fc glycosylation, we performed IgG subclass-specific liquid chromatography–mass spectrometry (LC–MS) analysis of Fc glycosylation in a large cohort of individuals splenectomized due to trauma, due to ITP, or spherocytosis. IgG-Fc fucosylation was consistently increased after splenectomy, while no effects for IgG-Fc galactosylation and sialylation were observed. An increase in IgG1- and IgG2/3-Fc fucosylation level upon splenectomy has been reported here for the first time, suggesting that immune responses occurring in the spleen may be particularly prone to generate afucosylated IgG responses. Surprisingly, the level of total IgG-Fc fucosylation was decreased in ITP patients compared to healthy controls. Overall, our results suggest a yet unrecognized role of the spleen in either the induction or maintenance of afucosylated IgG responses by B cells.

Consultation with the Specialist

1993 ◽  
Vol 14 (5) ◽  
pp. 202-203
Author(s):  
Terry Yamauchi
Keyword(s):  
Urinary Tract ◽  
Antimicrobial Agents ◽  
The United States ◽  
Enterococcal Infection ◽  
Surgical Wounds ◽  
Serious Infections ◽  
Patient At Risk ◽  
Hospital Acquired ◽  
Group D

Introduction The enterococci, normal inhabitants of the human and animal bowel flora, were considered for years to be nonvirulent microorganisms. Over the past decade, however, the role of enterococci in human disease has taken on new importance. Serious diseases, such as bacteremia, which is associated with significant mortality, and endocarditis, are prime examples of human enterococcal infections. More recently, the wide-spread use of antimicrobial agents has led to the emergence of multiresistant microorganisms, previously considered to be nonpathogenic, as significant agents in human diseases. Morphologically, enterococci are gram-positive cocci that grow in chains and resemble streptococci. Previously, enterococci were placed in the Lancefield Group D streptococci genus; currently, they are in a new bacterial genus classification Enterococcus (Table). Clinical Diseases Enterococci may cause serious infections in the hospitalized patient and have been reported as the third leading cause of nosocomial infections in the United States. The recovery of enterococci from the urinary tract, surgical wounds, and the blood documents the importance of these bacteria in hospital-acquired infections. [See table in the PDF file] The urinary tract is the most common site infected by enterococci. Surgical instrumentation, intervention, and catheterization are invasive procedures that place the patient at risk for enterococcal infection.

Modern Embalming, Circulation of Fluids, and the Voyage through the Human Arterial System: Carl L. Barnes and the Culture of Immortality in America

Nuncius ◽  
2011 ◽  
Vol 26 (1) ◽  
pp. 109-131
Author(s):  
Irina Podgorny
Keyword(s):  
Blood Vessels ◽  
19Th Century ◽  
Human Body ◽  
Blood Circulation ◽  
Arterial System ◽  
Experimental Medicine ◽  
Late 19Th Century ◽  
Dead Bodies

AbstractBy considering the work of American embalmer, lawyer, and physician Carl Lewis Barnes (1872-1927), this paper analyzes the emergence of modern embalming in America. Barnes experimented with and exhibited the techniques by which embalming fluids travelled into the most remote cavities of the human body. In this sense, modern embalmers based their skills and methods on experimental medicine, turning the anatomy of blood vessels, physiology of circulation, and composition of blood into a circuit that allowed embalming fluids to move throughout the corpse. Embalmers in the late 19th century took ownership of the laws of hydrodynamics and the physiology of blood circulation to market their fluids and equipment, thus playing the role of physiologists of death, performing and demonstrating physiological experiments with dead bodies.

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