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Biomedicine & Pharmacotherapy =... Nov 2020Sarcopenia is a syndrome characterized by progressive systemic muscle loss and decreased function. The loss of systemic muscle mass and decreased function after stroke... (Review)
Review
Sarcopenia is a syndrome characterized by progressive systemic muscle loss and decreased function. The loss of systemic muscle mass and decreased function after stroke can't be explained by brain injury alone, and it is considered to be a kind of secondary sarcopenia, which is called stroke-related sarcopenia. More and more evidence shows that stroke-related sarcopenia can promote the occurrence and development of sarcopenia through a variety of pathogenesis, such as immobilization, impaired feeding, sympathetic activation, inflammation and denervation. Post-stroke disability brings difficulties to the screening and diagnosis of sarcopenia. Simple and easy rehabilitation scores and clinical tests can be used for the determination of body function under specific conditions of stroke, as well as for the screening stroke-related sarcopenia. At present, there is still no particularly effective way to stop its progress,however, the combination of rehabilitation exercise, nutrition supply and drugs may delay or even prevent the development of stroke-related sarcopenia. This article reviews the latest progress in the pathogenesis, screening, evaluation and treatment of stroke-related sarcopenia to provide reference for clinical treatment and rehabilitation of stroke.
Topics: Humans; Motor Neurons; Muscle Strength; Muscle, Skeletal; Nutritional Support; Sarcopenia; Stroke; Stroke Rehabilitation
PubMed: 32920517
DOI: 10.1016/j.biopha.2020.110721 -
Frontiers in Endocrinology 2023Endometriosis is a complex and heterogeneous disease affecting approximately 10% of reproductive age women. The hypothesis that alterations in the microbiota are... (Review)
Review
Endometriosis is a complex and heterogeneous disease affecting approximately 10% of reproductive age women. The hypothesis that alterations in the microbiota are involved in the pathogenesis of endometriosis has been postulated. Possible explanations for the implications of dysbiosis in endometriosis include the Bacterial Contamination hypothesis and immune activation, cytokine-impaired gut function, altered estrogen metabolism and signaling. Thus, dysbiosis, disrupt normal immune function, leading to the elevation of proinflammatory cytokines, compromised immunosurveillance and altered immune cell profiles, all of which may contribute to the pathogenesis of endometriosis. The aim of this review is to summarize the available literature data about the relationship between microbiota and endometriosis.
Topics: Female; Humans; Endometriosis; Gastrointestinal Microbiome; Dysbiosis; Microbiota; Reproduction
PubMed: 36891056
DOI: 10.3389/fendo.2023.1140774 -
Frontiers in Endocrinology 2022Various theories for the hormonal basis of diabetes have been proposed and debated over the past few decades. Insulin insufficiency was previously regarded as the only... (Review)
Review
Various theories for the hormonal basis of diabetes have been proposed and debated over the past few decades. Insulin insufficiency was previously regarded as the only hormone deficiency directly leading to metabolic disorders associated with diabetes. Although glucagon and its receptor are ignored in this framework, an increasing number of studies have shown that they play essential roles in the development and progression of diabetes. However, the molecular mechanisms underlying the effects of glucagon are still not clear. In this review, recent research on the mechanisms by which glucagon and its receptor contribute to the pathogenesis of diabetes as well as correlations between mutation rates in populations and the occurrence of diabetes are summarized. Furthermore, we summarize how recent research clearly establishes glucagon as a potential therapeutic target for diabetes.
Topics: Diabetes Mellitus; Glucagon; Humans; Insulin; Receptors, Glucagon
PubMed: 35784565
DOI: 10.3389/fendo.2022.928016 -
Diagnosis (Berlin, Germany) Nov 2022Hypernatremia occurs when the plasma sodium concentration is greater than 145 mmol/L. Depending on the duration, hypernatremia can be differentiated into acute and... (Review)
Review
Hypernatremia occurs when the plasma sodium concentration is greater than 145 mmol/L. Depending on the duration, hypernatremia can be differentiated into acute and chronic. According to severity: mild, moderate and threatening hypernatremia. Finally, depending on pathogenesis, hypernatremia can be defined as hypervolemic, hypovolemic, and euvolemic. Acute hypervolemic hypernatremia is often secondary to increased sodium intake (hypertonic NaCl and NaHCO solutions). Instead, chronic hypervolemic hypernatremia may be an expression of primary hyperaldosteronism. Euvolemic hypernatremia occurs in diabetes insipidus: depending on the underlying pathogenesis, it can be classified into two basic types: neurogenic (or central) and nephrogenic. The neurogenic form may be triggered by traumatic, vascular or infectious events; the nephrogenic form may be due to pharmacological causes, such as lithium, or non-pharmacological ones, such as hypokalemia. For hypovolemic hypernatremia, possible explanations are renal or extrarenal losses. The main goal of treatment of hypernatremia is the restoration of plasma tonicity. In particular, if the imbalance has occurred acutely, rapid correction improves the prognosis by preventing the effects of cellular dehydration; if hypernatremia has developed slowly, over a period of days, a slow correction rate (no more than 0.4 mmol/L/h) is recommended.
Topics: Humans; Hypernatremia; Hypovolemia
PubMed: 35918296
DOI: 10.1515/dx-2022-0034 -
Molecular Vision 2021Rosacea is a chronic inflammatory disease that affects the face skin. It is clinically classified into the following four subgroups depending on its location and... (Review)
Review
Rosacea is a chronic inflammatory disease that affects the face skin. It is clinically classified into the following four subgroups depending on its location and severity: erythematotelangiectatic, papulopustular, phymatous, and ocular. Rosacea is a multifactorial disease triggered by favoring factors, the pathogenesis of which remains imperfectly understood. Recognized mechanisms include the innate immune system, with the implication of Toll-like receptors (TLRs) and cathelicidins; neurovascular deregulation involving vascular endothelial growth factor (VEGF), transient receptor potential (TRP) ion channels, and neuropeptides; and dysfunction of skin sebaceous glands and ocular meibomian glands. Microorganisms, genetic predisposition, corticosteroid treatment, and ultraviolet B (UVB) radiation are favoring factors. In this paper, we review the common and specific molecular mechanisms involved in the pathogenesis of cutaneous and ocular rosacea and discuss laboratory and clinical studies, as well as experimental models.
Topics: Animals; Disease Models, Animal; Eye Diseases; Humans; Models, Biological; Rosacea; Skin Diseases
PubMed: 34035646
DOI: No ID Found -
Journal of Microbiology, Immunology,... Apr 2021COVID-19 is a novel coronavirus with an outbreak of unusual viral pneumonia in Wuhan, China, and then pandemic. Based on its phylogenetic relationships and genomic... (Review)
Review
COVID-19 is a novel coronavirus with an outbreak of unusual viral pneumonia in Wuhan, China, and then pandemic. Based on its phylogenetic relationships and genomic structures the COVID-19 belongs to genera Betacoronavirus. Human Betacoronaviruses (SARS-CoV-2, SARS-CoV, and MERS-CoV) have many similarities, but also have differences in their genomic and phenotypic structure that can influence their pathogenesis. COVID-19 is containing single-stranded (positive-sense) RNA associated with a nucleoprotein within a capsid comprised of matrix protein. A typical CoV contains at least six ORFs in its genome. All the structural and accessory proteins are translated from the sgRNAs of CoVs. Four main structural proteins are encoded by ORFs 10, 11 on the one-third of the genome near the 3'-terminus. The genetic and phenotypic structure of COVID-19 in pathogenesis is important. This article highlights the most important of these features compared to other Betacoronaviruses.
Topics: Betacoronavirus; COVID-19; Genome, Viral; Genotype; Humans; Pandemics; Phenotype; Phylogeny; SARS-CoV-2; Virulence; Virus Replication
PubMed: 32265180
DOI: 10.1016/j.jmii.2020.03.022 -
Digestive Diseases (Basel, Switzerland) 2022Acute acalculous cholecystitis (AAC) is characterized by acute necrotizing inflammation with no calculi and is diagnosed based on imaging, intraoperative, and... (Review)
Review
BACKGROUND
Acute acalculous cholecystitis (AAC) is characterized by acute necrotizing inflammation with no calculi and is diagnosed based on imaging, intraoperative, and pathological examinations.
KEY MESSAGE
Although AAC has been studied clinically for a long time, it remains difficult to diagnose and treat. The pathogenesis of AAC is still not fully understood, and it is often regarded as a relatively independent clinical disease that is different from acute calculous cholecystitis (ACC). Pathological studies suggest that AAC is the manifestation of a critical systemic disease, while ACC is a local disease of the gallbladder.
SUMMARY
Concerning the pathogenesis, diagnosis, and treatment of AAC, we reviewed the research progress of AAC, which will enhance the understanding of the early diagnosis and treatment of AAC.
Topics: Acalculous Cholecystitis; Acute Disease; Cholecystitis, Acute; Humans
PubMed: 34657038
DOI: 10.1159/000520025 -
European Journal of Pediatric Surgery :... Oct 2020Perianal abscess (PA) and fistula-in-ano (FIA) are common entities in infancy. Although several hypotheses have been suggested, the pathogenesis of PA/FIA remains... (Review)
Review
Perianal abscess (PA) and fistula-in-ano (FIA) are common entities in infancy. Although several hypotheses have been suggested, the pathogenesis of PA/FIA remains elusive. The natural course of these diseases in infancy is self-limiting in the majority of cases whereas older children show similarities to PA/FIA in adults. It is important to rule out rare differential diagnoses of PA/FIA such as inflammatory bowel disease (IBD), surgical complications after colorectal surgery, and immunodeficiencies. Treatment remains empiric, comprises conservative, as well as surgical approaches, and is dependent on the age of the patient. This review summarizes anatomical aspects, current evidence on disease pathogenesis, clinical presentation, and management of pediatric patients with PA and FIA.
Topics: Abscess; Adolescent; Child; Child, Preschool; Conservative Treatment; Diagnosis, Differential; Female; Fissure in Ano; Humans; Infant; Male; Rectal Fistula; Surgical Procedures, Operative
PubMed: 32987435
DOI: 10.1055/s-0040-1716726 -
Acta Medica (Hradec Kralove) 2020Recurrent aphthous stomatitis (RAS) is the most common chronic oral mucosal lesion affecting up to 25% of the population. The diagnosis is based on well-defined clinical... (Review)
Review
Recurrent aphthous stomatitis (RAS) is the most common chronic oral mucosal lesion affecting up to 25% of the population. The diagnosis is based on well-defined clinical characteristics, but the precise aetiology and pathogenesis remain unclear. The treatment of RAS should be based on the identification and control of possible predisposing factors. A wide range of topical medicaments is available as antiseptics, anti-inflammatory drugs and corticosteroids. The systemic treatment is indicated in patients with continuous and aggressive manifestation, which is extremely rare in children. The present article provides a review of the current concept and knowledge of the aetiology, pathogenesis, and management of RAS in the paediatric population.
Topics: Child; Diagnosis, Differential; Humans; Recurrence; Stomatitis, Aphthous
PubMed: 33355074
DOI: 10.14712/18059694.2020.56 -
The mechanism and therapeutic strategies for neovascular glaucoma secondary to diabetic retinopathy.Frontiers in Endocrinology 2023Neovascular glaucoma (NVG) is a devastating secondary glaucoma characterized by the appearance of neovascular over the iris and the proliferation of fibrovascular tissue... (Review)
Review
Neovascular glaucoma (NVG) is a devastating secondary glaucoma characterized by the appearance of neovascular over the iris and the proliferation of fibrovascular tissue in the anterior chamber angle. Proliferative diabetic retinopathy (PDR) is one of the leading causes of NVG. Currently increasing diabetes population drive the prevalence rate of NVG into a fast-rising lane. The pathogenesis underlying NVG makes it refractory to routine management for other types of glaucoma in clinical practice. The combination of panretinal photocoagulation (PRP), anti-vascular endothelial growth factor (VEGF) injections, anti-glaucoma drugs, surgical intervention as well as blood glucose control is needed. Early diagnosis and aggressive treatment in time are crucial in halting the neovascularization process and preserving vision. This review provides an overview of NVG secondary to diabetic retinopathy (DR), including the epidemiology, pathogenesis and management, so as to provide a better understanding as well as potential therapeutic strategies for future treatment.
Topics: Humans; Diabetic Retinopathy; Vascular Endothelial Growth Factor A; Glaucoma, Neovascular; Laser Coagulation; Retina; Diabetes Mellitus
PubMed: 36755912
DOI: 10.3389/fendo.2023.1102361