scholarly journals Non-clinical safety study of a sugarcane bacterial cellulose hydrogel

2020 ◽  
Vol 9 (9) ◽  
pp. e960997932
Author(s):  
Jaiurte Gomes Martins da Silva ◽  
Flávia Cristina Morone Pinto ◽  
Glícia Maria de Oliveira ◽  
Anderson Arnaldo da Silva ◽  
Olávio Campos Júnior ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
Cell Injury ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Abnormal Behavior ◽  
Clinical Safety ◽  
Routes Of Administration ◽  
Two Samples ◽  
Renal Histology ◽  
Cellulose Hydrogel

A hydrogel of bacterial cellulose of 0.8%, biopolymer produced from sugarcane molasses and synthesized from a bacteria called Zoogloea sp., was analyzed for its composition and tested by two routes of administration, subcutaneous and intraperitoneal, to clarify the local and systemic adverse effects after skin implantation in Wistar rats (24 males, 24 females, 55 days old). Analysis of two samples of BC films indicates carbon (42.94%; 43.43%), hydrogen (6.73%; 6.76%), nitrogen (0.28%, 0.23%) and oxygen (50.05%, 49.58%). No abnormal behavior, clinical signs of chronic toxicity or inflammation were observed. There was no change in liver injury biomarker levels (ALT, AST and ALP), as well as in renal histology, where it was evaluated to signs of tubular cell injury, glomerular or vascular damage, and renal morphometry, in which it was quantified the number of renal corpuscles, the number of cells per glomerulus and the capsular space area. Thus, the absence of signs and symptoms of toxicity suggests that subcutaneous or intraperitoneal injections of these polymers may be used in clinical situations.

scholarly journals Behavioral Assessment of Sensory, Motor, Emotion, and Cognition in Rodent Models of Intracerebral Hemorrhage

2021 ◽  
Vol 12 ◽  
Author(s):  
Xiaoyu Shi ◽  
Huiying Bai ◽  
Junmin Wang ◽  
Jiarui Wang ◽  
Leo Huang ◽  
...  
Keyword(s):  
Intracerebral Hemorrhage ◽  
Cell Injury ◽  
Forced Swim Test ◽  
Clinical Signs ◽  
Preference Test ◽  
Signs And Symptoms ◽  
Motor Dysfunction ◽  
Object Recognition Test ◽  
Cold Pain ◽  
Pain Tests

Intracerebral hemorrhage (ICH) is the second most common type of stroke and has one of the highest fatality rates of any disease. There are many clinical signs and symptoms after ICH due to brain cell injury and network disruption resulted from the rupture of a tiny artery and activation of inflammatory cells, such as motor dysfunction, sensory impairment, cognitive impairment, and emotional disturbance, etc. Thus, researchers have established many tests to evaluate behavioral changes in rodent ICH models, in order to achieve a better understanding and thus improvements in the prognosis for the clinical treatment of stroke. This review summarizes existing protocols that have been applied to assess neurologic function outcomes in the rodent ICH models such as pain, motor, cognition, and emotion tests. Pain tests include mechanical, hot, and cold pain tests; motor tests include the following 12 types: neurologic deficit scale test, staircase test, rotarod test, cylinder test, grid walk test, forelimb placing test, wire hanging test, modified neurologic severity score, beam walking test, horizontal ladder test, and adhesive removal test; learning and memory tests include Morris water maze, Y-maze, and novel object recognition test; emotion tests include elevated plus maze, sucrose preference test, tail suspension test, open field test, and forced swim test. This review discusses these assessments by examining their rationale, setup, duration, baseline, procedures as well as comparing their pros and cons, thus guiding researchers to select the most appropriate behavioral tests for preclinical ICH research.

scholarly journals Sindrom Hepatopulmoner

2019 ◽  
Vol 1 (2) ◽  
pp. 60
Author(s):  
Kowiy Akbar ◽  
Isnu Pradjoko
Keyword(s):  
Nitric Oxide ◽  
Liver Disease ◽  
Cell Injury ◽  
Clinical Signs ◽  
Supportive Therapy ◽  
Hepatopulmonary Syndrome ◽  
Blood Gas Analysis ◽  
Signs And Symptoms ◽  
Gas Analysis ◽  
Definitive Treatment

Hepatopulmonary syndrome (HPS) is an important complication of liver disease on pulmonary organ; characterized by the triad of liver disease, pulmonary vascular dilatation, and oxygenation defect. Clinical signs and symptoms include dyspnea, platypnea, orthodeoxia, cyanosis, and clubbing finger. The underlying patophysiology involves abnormal vasodilation and angiogenesis in the pulmonary vascular bed, which leads to ventilation-perfusion mismatch, diffusion limitation to oxygen exchange, and arteriovenous shunting. This disorder is thought to be linked to liver cell injury, which stimulates release of endothelin-1 and results in increased expression of endothelin receptors on pulmonary endothelial cells, leading to upregulation of endothelial-nitric-oxide-synthase (eNOS) and subsequent increased production of nitric oxide (NO), ultimately causing vasodilation. Laboratory studies to establish diagnosis includes blood gas analysis and echocardiography, supported by radiology and pulmonary vascular cathetherization. Despite accumulated knowledge about the pathogenesis of HPS, currently there is still no established medical therapy, and liver transplantation remains the definitive treatment for this syndrome. Supportive therapy consists oflong term oxygen administration to prevent desaturation and alleviate dyspnea.

Infection surveillance in nursing homes in Stockholm County, Sweden, 2005 - 2014

2016 ◽  
Vol 12 (3) ◽  
Author(s):  
Ann Tammelin
Keyword(s):  
Nursing Homes ◽  
Infection Control ◽  
Urinary Catheter ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
County Council ◽  
Antibiotic Prescribing ◽  
Viral Gastroenteritis ◽  
Stockholm County ◽  
Infection Surveillance

Swedish nursing homes are obliged to have a management system for systematic quality work including self-monitoring of which surveillance of infections is one part. The Department of Infection Control in Stockholm County Council has provided a simple system for infection surveillance to the nursing homes in Stockholm County since 2002. A form is filled in by registered nurses in the nursing homes at each episode of infection among the residents. A bacterial infection is defined by antibiotic prescribing and a viral infection by clinical signs and symptoms. Yearly reports of numbers of infections in each nursing home and calculated normalized figures for incidence, i.e. infections per 100 residents per year, as well as proportion of residents with urinary catheter are delivered to the medically responsible nurses in each municipality by the Department of Infection Control. Number of included residents has varied from 4,531 in 2005 to 8,157 in 2014 with a peak of 10,051 in 2009. The yearly incidences during 2005 - 2014 (cases per 100 residents) were: Urinary tract infection (UTI) 7.9-16.0, Pneumonia 3.7-5.3, Infection of chronic ulcer 3.4–6.8, Other infection in skin or soft tissue 1.4–2.9, Clostridium difficile-infection 0.2–0.7, Influenza 0–0.4 and Viral gastroenteritis 1.2–3.7. About 1 % of the residents have a suprapubic urinary catheter, 6–7 % have an indwelling urinary catheter. Knowledge about the incidence of UTI has contributed to the decrease of this infection both in residents with and without urinary catheter.

scholarly journals L2HGDH Missense Variant in a Cat with L-2-Hydroxyglutaric Aciduria

Genes ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 682
Author(s):  
Matthias Christen ◽  
Nils Janzen ◽  
Anne Fraser ◽  
Adrian C. Sewell ◽  
Vidhya Jagannathan ◽  
...  
Keyword(s):  
Current Knowledge ◽  
Genetic Defect ◽  
Clinical Signs ◽  
Missense Variant ◽  
Microcytic Anemia ◽  
Abnormal Behavior ◽  
Functional Candidate Gene ◽  
History Of ◽  
The Brain ◽  
Hydroxyglutaric Acid

A 7-month-old, spayed female, domestic longhair cat with L-2-hydroxyglutaric aciduria (L-2-HGA) was investigated. The aim of this study was to investigate the clinical signs, metabolic changes and underlying genetic defect. The owner of the cat reported a 4-month history of multiple paroxysmal seizure-like episodes, characterized by running around the house, often in circles, with abnormal behavior, bumping into obstacles, salivating and often urinating. The episodes were followed by a period of disorientation and inappetence. Neurological examination revealed an absent bilateral menace response. Routine blood work revealed mild microcytic anemia but biochemistry, ammonia, lactate and pre- and post-prandial bile acids were unremarkable. MRI of the brain identified multifocal, bilaterally symmetrical and T2-weighted hyperintensities within the prosencephalon, mesencephalon and metencephalon, primarily affecting the grey matter. Urinary organic acids identified highly increased levels of L-2-hydroxyglutaric acid. The cat was treated with the anticonvulsants levetiracetam and phenobarbitone and has been seizure-free for 16 months. We sequenced the genome of the affected cat and compared the data to 48 control genomes. L2HGDH, coding for L-2-hydroxyglutarate dehydrogenase, was investigated as the top functional candidate gene. This search revealed a single private protein-changing variant in the affected cat. The identified homozygous variant, XM_023255678.1:c.1301A>G, is predicted to result in an amino acid change in the L2HGDH protein, XP_023111446.1:p.His434Arg. The available clinical and biochemical data together with current knowledge about L2HGDH variants and their functional impact in humans and dogs allow us to classify the p.His434Arg variant as a causative variant for the observed neurological signs in this cat.

scholarly journals Prevalence and Course of IgA and IgG Antibodies against SARS-CoV-2 in Healthcare Workers during the First Wave of the COVID-19 Outbreak in Germany: Interim Results from an Ongoing Observational Cohort Study

Healthcare ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 498
Author(s):  
Mark Reinwald ◽  
Peter Markus Deckert ◽  
Oliver Ritter ◽  
Henrike Andresen ◽  
Andreas G. Schreyer ◽  
...  
Keyword(s):  
Cohort Study ◽  
Healthcare Workers ◽  
Significant Proportion ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Observational Cohort Study ◽  
Igg Antibodies ◽  
University Hospitals ◽  
Observational Cohort

(1) Background: Healthcare workers (HCWs) are prone to intensified exposure to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in the ongoing pandemic. We prospectively analyzed the prevalence of antibodies against SARS-CoV-2 in HCWs at baseline and follow up with regard to clinical signs and symptoms in two university hospitals in Brandenburg, Germany. (2) Methods: Screening for anti-SARS-CoV-2 IgA and IgG antibodies was offered to HCWs at baseline and follow up two months thereafter in two hospitals of Brandenburg Medical School during the first wave of the COVID-19 pandemic in Germany in an ongoing observational cohort study. Medical history and signs and symptoms were recorded by questionnaires and analyzed. (3) Results: Baseline seroprevalence of anti-SARS-CoV-2 IgA was 11.7% and increased to 15% at follow up, whereas IgG seropositivity was 2.1% at baseline and 2.2% at follow up. The rate of asymptomatic seropositive cases was 39.5%. Symptoms were not associated with general seropositivity for anti-SARS-CoV-2; however, class switch from IgA to IgG was associated with increased symptom burden. (4) Conclusions: The seroprevalence of antibodies against SARS-CoV-2 was low in HCWs but higher compared to population data and increased over time. Screening for antibodies detected a significant proportion of seropositive participants cases without symptoms.

scholarly journals Wolman’s disease presenting with secondary hemophagocytic lymphohistiocytosis: a case report from Saudi Arabia and literature review

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fahad Alabbas ◽  
Ghaleb Elyamany ◽  
Talal Alanzi ◽  
Tahani Bin Ali ◽  
Fatma Albatniji ◽  
...  
Keyword(s):  
Hemophagocytic Lymphohistiocytosis ◽  
Metabolic Disorder ◽  
Clinical Signs ◽  
Failure To Thrive ◽  
Severe Infection ◽  
Signs And Symptoms ◽  
Immune Deficiency Syndrome ◽  
Autoimmune Disorder ◽  
Deficiency Syndrome ◽  
Homozygous Deletion

Abstract Background Hemophagocytic lymphohistiocytosis (HLH) is a rare and potentially fatal syndrome that is characterized by strong activation of the immune system from hyperinflammatory cytokines. Symptoms of HLH patients include fever, hepatosplenomegaly, cytopenia, and hyperferritinemia. Inherited HLH is classified as primary, whereas secondary HLH (sHLH) occurs when acquired from non-inherited reasons that include severe infection, immune deficiency syndrome, autoimmune disorder, neoplasm, and metabolic disorder. Wolman’s disease (WD) is a rare and fatal infantile metabolic disorder caused by lysosomal acid lipase deficiency, that exhibits similar clinical signs and symptoms as HLH. This paper reports the case of an infant diagnosed with WD and who presented with sHLH. Case presentation A 4-month-old infant presenting with hepatosplenomegaly, failure to thrive, and other abnormalities. WD diagnosis was confirmed by the presence of the LIPA gene homozygous deletion c.(428 + 1_967-1)_(*1_?)del. The infant also met the HLH-2004 diagnostic criteria. Conclusions Metabolic disorder such as WD should be investigated in infants fulfilling the HLH criteria to diagnose the underlying condition. More studies are needed to understand the link between WD and sHLH and to identify appropriate therapies.

scholarly journals Dementia and Major Neurocognitive Disorders: Some Lessons Learned One Century after the first Alois Alzheimer’s Clinical Notes

Geriatrics ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 5
Author(s):  
Donatella Rita Petretto ◽  
Gian Pietro Carrogu ◽  
Luca Gaviano ◽  
Lorenzo Pili ◽  
Roberto Pili
Keyword(s):  
Young Woman ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Neurocognitive Disorders ◽  
Lessons Learned ◽  
Alzheimer Dementia ◽  
Clinical Notes ◽  
Alois Alzheimer ◽  
Clinical Signs And Symptoms

Over 100 years ago, Alois Alzheimer presented the clinical signs and symptoms of what has been later called “Alzheimer Dementia” in a young woman whose name was Augustine Deter [...]

scholarly journals Correction to: Levoketoconazole improves clinical signs and symptoms and patient-reported outcomes in patients with Cushing’s syndrome

Pituitary ◽  
2020 ◽  
Author(s):  
Eliza B. Geer ◽  
Roberto Salvatori ◽  
Atanaska Elenkova ◽  
Maria Fleseriu ◽  
Rosario Pivonello ◽  
...  
Keyword(s):  
Cushing’S Syndrome ◽  
Patient Reported Outcomes ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Cushing's Syndrome ◽  
Original Version ◽  
Patient Reported ◽  
Author Group ◽  
Clinical Signs And Symptoms

The original version of the article unfortunately contained an error in the first name and the surname of one of the authors in the author group. The last author name was incorrectly published as ‘F. Pecori Giraldi’ and the corrected name is ‘Francesca Pecori Giraldi’ (First name: Francesca; Surname: Pecori Giraldi).

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