11,442 results match your criteria Conversion Disorders

Transition from da Vinci to Versius robotic surgical system: initial experience and outcomes of over 100 consecutive procedures.

J Robot Surg 2022 Jun 26. Epub 2022 Jun 26.

Sindh Institute of Urology and Transplantation, Karachi, 74200, Pakistan.

We sought to describe the development of the robotic urology program at Sindh Institute of Urology and Transplantation (SIUT) and the feasibility of transitioning from the da Vinci to Versius robotic systems. The SIUT robotics program began in 2017 utilizing the da Vinci Si robotic system, transitioning to the Versius system in 2021. Retrospective review of our quality assurance database was performed. Read More

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Multi-centre classification of functional neurological disorders based on resting-state functional connectivity.

Neuroimage Clin 2022 Jun 17;35:103090. Epub 2022 Jun 17.

Psychosomatic Medicine, Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Switzerland. Electronic address:

Background: Patients suffering from functional neurological disorder (FND) experience disabling neurological symptoms not caused by an underlying classical neurological disease (such as stroke or multiple sclerosis). The diagnosis is made based on reliable positive clinical signs, but clinicians often require additional time- and cost consuming medical tests and examinations. Resting-state functional connectivity (RS FC) showed its potential as an imaging-based adjunctive biomarker to help distinguish patients from healthy controls and could represent a "rule-in" procedure to assist in the diagnostic process. Read More

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Towards a tailored psychotherapy for patients with functional neurological disorders.

J Affect Disord 2022 Jun 21. Epub 2022 Jun 21.

Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.

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Transcription factor-based direct conversion of human fibroblasts to functional astrocytes.

Stem Cell Reports 2022 Jun 7. Epub 2022 Jun 7.

Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Neurology, Stem Cells, Aging and Neurodegeneration, Lund, Sweden; Lund Stem Cell Center, Lund, Sweden. Electronic address:

Astrocytes are emerging key players in neurological disorders. However, their role in disease etiology is poorly understood owing to inaccessibility of primary human astrocytes. Pluripotent stem cell-derived cells fail to mimic age and due to their clonal origin do not mimic genetic heterogeneity of patients. Read More

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Oxidative Stress in Calcific Aortic Valve Stenosis: Protective Role of Natural Antioxidants.

Antioxidants (Basel) 2022 Jun 14;11(6). Epub 2022 Jun 14.

College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, 1666 Yeongsan-Ro, Cheonggye-Myeon, Muan-Gun 58554, Jeonnam, Korea.

Calcific aortic valve stenosis (CAVS) is the most prevalent heart valvular disease worldwide and a slowly progressive disorder characterized by thickening of the aortic valve, calcification, and subsequent heart failure. Valvular calcification is an active cell regulation process in which valvular interstitial cells involve phenotypic conversion into osteoblasts/chondrocytes-like cells. The underlying pathophysiology is complicated, and there have been no pharmacological treatments for CAVS to date. Read More

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Reconstruction of Soft Biological Tissues Using Laser Soldering Technology with Temperature Control and Biopolymer Nanocomposites.

Bioengineering (Basel) 2022 May 29;9(6). Epub 2022 May 29.

Institute of Biomedical Systems, National Research University of Electronic Technology, Shokin Square 1, Zelenograd, 124498 Moscow, Russia.

Laser soldering is a current biophotonic technique for the surgical recovery of the integrity of soft tissues. This technology involves the use of a device providing laser exposure to the cut edges of the wound with a solder applied. The proposed solder consisted of an aqueous dispersion of biopolymer albumin (25 wt. Read More

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A 10-Year Community-Based Study of Leucine-Rich Repeat Kinase 2 G2385R Carriers' Conversion to Parkinson's Disease.

Mov Disord 2022 Jun 22. Epub 2022 Jun 22.

Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.

Background: The G2385R variant of leucine-rich repeat kinase 2 (LRRK2) is mainly associated with Parkinson's disease(PD) in Asian populations.

Objective: The aim of this study was to investigate the PD conversion rate and clinical characteristics of LRRK2 G2385R nonmanifesting carriers.

Methods: All participants were from the community-based longitudinal cohort of Shanghai Ruijin Hospital. Read More

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Performance, health, bacterial metabolites and intestinal histomorphology in does and growing rabbits fed diets with increasing lignocellulose-to-cellulose proportions.

Arch Anim Nutr 2022 Jun 22:1-20. Epub 2022 Jun 22.

Institute of Animal Nutrition, Freie Universität Berlin, Berlin, Germany.

Adequate levels of dietary fibre can reduce the risk of intestinal health disorders in rabbits after weaning. Therefore, it was the aim of the study to investigate the impact of different lignocellulose and cellulose addition to rabbits' diets on performance and intestinal traits in lactating does and weaned rabbits. A total of 60 rabbit does (4. Read More

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Functional Movement Disorder and Parkinson's Disease Comorbidity: A Case Report.

Turk Psikiyatri Derg 2022 ;33(2):133-138

Functional movement disorders (FMD) are abnormal involuntary movements that are not attributable to known neurological and neuroanatomical causes. In the past decade, FMD diagnoses have been based on positive factors that are inconsistent with neurological disorders and not on the exclusion of neurological disorders. In this report, we presented the case of a female patient who had been followed up for 4 years in multiple health centers with the diagnosis of a neurological disorder which was suspected in the previous 1 year to be of psychogenic origin. Read More

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Novel mutations in unrelated Vietnamese patients with chronic granulomatous disease.

Clin Chim Acta 2022 Jun 18. Epub 2022 Jun 18.

Institute of Genome Research, Vietnam Academy of Science and Technology; Graduate University of Science and Technology, Vietnam Academy of Science and Technology. Electronic address:

Background: Chronic granulomatous disease (CGD) is a rare primary immunodeficiency disorder (PID) due to genetic defects in the NADPH oxidase of phagocytes. Affected patients become susceptible to infections such as pneumonia, diarrhea, and skin ulcer types. The patients require life-long treatment with prophylactic antibiotics, antifungals, or hematopoietic stem cell transplantation (HSCT) therapy. Read More

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In vitro and in silico xanthine oxidase inhibitory activities of 3-aryl-2-thioxo-2,3-dihydroquinazolin-4(1H)-one derivatives.

Med Chem 2022 Jun 20. Epub 2022 Jun 20.

H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan.

Background: Hyperuricemia is associated with several disease conditions, such as atherosclerosis, arthritis, kidney stones, and many others. Xanthine oxidase (XO), is an enzyme catalyzes the conversion of xanthine to uric acid. Hence, XO is a major therapeutic drug target in the treatment of hyperuricemia, and associated disorders. Read More

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Implantation of a nerve protector embedded with human GMSC-derived Schwann-like cells accelerates regeneration of crush-injured rat sciatic nerves.

Stem Cell Res Ther 2022 Jun 20;13(1):263. Epub 2022 Jun 20.

Department of Oral and Maxillofacial Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, 240 South 40th Street, Philadelphia, PA, 19104, USA.

Background: Peripheral nerve injuries (PNIs) remain one of the great clinical challenges because of their considerable long-term disability potential. Postnatal neural crest-derived multipotent stem cells, including gingiva-derived mesenchymal stem cells (GMSCs), represent a promising source of seed cells for tissue engineering and regenerative therapy of various disorders, including PNIs. Here, we generated GMSC-repopulated nerve protectors and evaluated their therapeutic effects in a crush injury model of rat sciatic nerves. Read More

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Peripartum Ηysterectomy: A Four-Year Obstetric and Anesthetic Experience in a Tertiary Referral Hospital in Greece.

Cureus 2022 May 17;14(5):e25062. Epub 2022 May 17.

First Department of Obstetrics and Gynecology, Alexandra Hospital, National & Kapodistrian University of Athens, Athens, GRC.

Background Although peripartum hysterectomy (PH) is a life-saving procedure in cases of abnormal placentation and postpartum hemorrhage, it can be associated with major obstetric and anesthetic complications. This retrospective study aimed to evaluate the incidence, etiology, perioperative anesthetic and obstetric management, complications, and fetal outcomes in women undergoing PH in a single tertiary referral hospital in Greece. Methodology This was a retrospective analysis of medical records of women who underwent emergency or elective PH in our hospital between January 2015 and December 2018. Read More

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Cryo-EM structure of an amyloid fibril formed by full-length human SOD1 reveals its conformational conversion.

Nat Commun 2022 Jun 17;13(1):3491. Epub 2022 Jun 17.

Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, Wuhan University, 430072, Wuhan, China.

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease. Misfolded Cu, Zn-superoxide dismutase (SOD1) has been linked to both familial and sporadic ALS. SOD1 fibrils formed in vitro share toxic properties with ALS inclusions. Read More

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New-Onset Heart Failure in the Setting of T4-Conversion Disorder.

Cureus 2022 May 15;14(5):e25024. Epub 2022 May 15.

Internal Medicine, St. John's Riverside Hospital, Yonkers, USA.

Thyroid hormone is essential in accomplishing the appropriate metabolism of the body. Achieving euthyroidism is of importance due to the deadly ramifications of being hypothyroid, such as multiple organ failure, profound decrease in mentation and even death. We present a case of an 80-year-old female with a history of hypertension, coronary artery disease, chronic kidney disease, hypothyroidism due to total thyroidectomy, and a cerebral vascular accident who presented with slurred speech, decreased appetite, dizziness and lethargy with new-onset weakness. Read More

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Development and Internal Validation of a Risk Prediction Model for Acute Cardiovascular Morbidity in Preeclampsia.

Can J Cardiol 2022 Jun 13. Epub 2022 Jun 13.

Department of Obstetrics and Gynecology, Warren Alpert Medical School of Brown University, Women & Infants Hospital, Providence, Rhode Island, USA; Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA.

Background: Persons with preeclampsia are at increased short-term risk of adverse cardiovascular outcomes during pregnancy and the early postpartum period. We aimed to develop and internally validate a risk assessment tool to predict acute cardiovascular morbidity in preeclampsia.

Methods: The study was conducted at an academic obstetric hospital. Read More

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Genetic loss of function of Ptbp1 does not induce glia-to-neuron conversion in retina.

Cell Rep 2022 Jun;39(11):110849

Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Kavli Neuroscience Discovery Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA. Electronic address:

Direct reprogramming of glia into neurons is a potentially promising approach for the replacement of neurons lost to injury or neurodegenerative disorders. Knockdown of the polypyrimidine tract-binding protein Ptbp1 has been recently reported to induce efficient conversion of retinal Mϋller glia into functional neurons. Here, we use a combination of genetic lineage tracing, single-cell RNA sequencing (scRNA-seq), and electroretinogram analysis to show that selective induction of either heterozygous or homozygous loss-of-function mutants of Ptbp1 in adult retinal Mϋller glia does not lead to any detectable level of neuronal conversion. Read More

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Molecular and computational analysis of spike protein of newly emerged omicron variant in comparison to the delta variant of SARS-CoV-2 in Iraq.

Mol Biol Rep 2022 Jun 13. Epub 2022 Jun 13.

Department of Biology, College of Science, University of Sulaimani, Sulaimaniyah, Iraq.

Background: The Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2) has had a major impact on world health over the last 2 years. The emergence of SARS-CoV-2 variants, particularly concerning variants, may affect the virus's pathogenicity, transmissibility, and vaccines potency. Both delta and the omicron variants have been designated by WHO as variants of concern. Read More

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Excess 11-Oxygenated androgens in women with severe insulin resistance are mediated by adrenal insulin receptor signaling.

J Clin Endocrinol Metab 2022 Jun 13. Epub 2022 Jun 13.

National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD.

Context: Syndromes of severe insulin resistance (SIR) include insulin receptoropathy, in which all signaling downstream of the insulin receptor is lost, and lipodystrophy, in which some signaling pathways are impaired and others preserved. Women with SIR commonly have ovarian hyperandrogenemia; adrenal-derived 11-oxygenated androgens, produced by CYP11B1, have not been studied.

Objective: To evaluate classic pathway androgens (androstenedione, testosterone) and 11-oxygenated androgens in women with SIR and hyperandrogenemia, and to elucidate the role of insulin receptor signaling for 11-oxygenated androgen production by comparing lipodystrophy and receptoropathy. Read More

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Structural Insights on the Conversion of Cytochrome P450 to P420.

ACS Omega 2022 Jun 27;7(22):18481-18485. Epub 2022 May 27.

Departments of Molecular Biology and Biochemistry, Pharmaceutical Sciences, and Chemistry, University of California, Irvine, California 92697-3900, United States.

A characteristic feature of cytochromes P450* is that the complex formed between the ferrous heme iron and carbon monoxide generates an intense absorption band at 450 nm. This unique feature of P450s is due to the proximal thiolate Cys ligand coordinated to the heme iron. Various harsh treatments shift this band to 420 nm, thereby giving P420 which is most often associated with an inactive form of the enzyme. Read More

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So, and if it is not congenital adrenal hyperplasia? Addressing an undiagnosed case of genital ambiguity.

Ital J Pediatr 2022 Jun 10;48(1):89. Epub 2022 Jun 10.

Clinical Genetics Service, Medical Genetics Sector, Faculty of Medicine, University Hospital, Federal University of Alagoas, Avenida Lourival Melo Mota, S/N, Tabuleiro 23 do Martins, 57072-970, Maceió, Alagoas, Brasil.

Background: The Congenital Adrenal Hyperplasia due to 21 hydroxylase deficiency is the most common cause of genital ambiguity in persons with XX sexual chromosomes. Genital ambiguity among persons with XY sexual chromosomes comprises diverse and rare etiologies. The deficiency of 17-beta-hydroxysteroid dehydrogenase type 3 enzyme (HSD17B3) is a rare autosomal recessive disorder due to functionally altered variants of the HSD17B3 gene. Read More

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Regulatory T cells, damage-associated molecular patterns, and myeloid-derived suppressor cells in bronchoalveolar lavage fluid interlinked with chronic obstructive pulmonary disease severity: An observational study.

Medicine (Baltimore) 2022 Jun 10;101(23):e29208. Epub 2022 Jun 10.

Department of Pulmonology, Allergology and Pulmonary Oncology, Poznan University of Medical Sciences, Szamarzewskiego 84 Street, Poznan, Poland.

Abstract: The role of regulatory T cells (Tregs), damage-associated molecular patterns (DAMPs), and myeloid-derived suppressor cells (MDSCs) in the mechanism of innate and adaptive immune responses in chronic obstructive pulmonary disease (COPD) is not well understood.Evaluating the presence of Tregs in the bronchoalveolar lavage fluid (BALF) and peripheral blood in patients with COPD, and assessment of the relationship between Tregs, MDSCs, and DAMPs as factors activating innate and adaptive immune responses. Description of the association between immune and clinical parameters in COPD. Read More

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Probing the Structural Details of Chitin Nanocrystal-Water Interfaces by Three-Dimensional Atomic Force Microscopy.

Small Methods 2022 Jun 9:e2200320. Epub 2022 Jun 9.

WPI Nano Life Science Institute (WPI-Nano LSI), Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan.

Chitin is one of the most abundant and renewable natural biopolymers. It exists in the form of crystalline microfibrils and is the basic structural building block of many biological materials. Its surface crystalline structure is yet to be reported at the molecular level. Read More

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Loop and Bridge Conformations of ABA Triblock Comb Copolymers: A Conformational Assessment for Molecular Composites.

Polymers (Basel) 2022 Jun 6;14(11). Epub 2022 Jun 6.

Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Korea.

We computationally investigate the conformational behavior, "bridging" chain, between different the phase-separated domains vs "looping" chain on the same domain, for two chain architectures of ABA triblock copolymers, one with a linear architecture (L-TBC) and the other with comb architecture (C-TBC) at various segregation regimes using dissipative particle dynamics (DPD) simulations. The power-law relation between the bridge fraction (Φ) and the interaction parameter (χ) for C-TBC is found to be Φ∼χ-1.6 in the vicinity of the order-disorder transition (χODT), indicating a drastic conversion from the bridge to the loop conformation. Read More

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Norepinephrine potentiates and serotonin depresses visual cortical responses by transforming eligibility traces.

Nat Commun 2022 Jun 9;13(1):3202. Epub 2022 Jun 9.

Mind/Brain Institute, Johns Hopkins University, Baltimore, MD, 21218, USA.

Reinforcement allows organisms to learn which stimuli predict subsequent biological relevance. Hebbian mechanisms of synaptic plasticity are insufficient to account for reinforced learning because neuromodulators signaling biological relevance are delayed with respect to the neural activity associated with the stimulus. A theoretical solution is the concept of eligibility traces (eTraces), silent synaptic processes elicited by activity which upon arrival of a neuromodulator are converted into a lasting change in synaptic strength. Read More

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Beneficial Effect of Fenofibrate and Silymarin on Hepatic Steatosis and Gene Expression of Lipogenic and Cytochrome P450 Enzymes in Non-Obese Hereditary Hypertriglyceridemic Rats.

Curr Issues Mol Biol 2022 Apr 26;44(5):1889-1900. Epub 2022 Apr 26.

Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 14021 Prague, Czech Republic.

The efficacy of fenofibrate in the treatment of hepatic steatosis has not been clearly demonstrated. In this study, we investigated the effects of fenofibrate and silymarin, administered as monotherapy and in combination to existing hepatic steatosis in a unique strain of hereditary hypertriglyceridemic rats (HHTg), a non-obese model of metabolic syndrome. HHTg rats were fed a standard diet without or with fenofibrate (100 mg/kg b. Read More

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A case of methotrexate-associated Epstein-Barr virus-positive mucocutaneous ulcer.

Skin Health Dis 2022 Jun 17;2(2):e108. Epub 2022 Mar 17.

Department of Dermatology Hamamatsu University School of Medicine Hamamatsu Shizuoka Japan.

Epstein-Barr virus-positive mucocutaneous ulcer (EBVMCU) is a B-cell proliferative disorder that has been designated as a provisional entity in the 2017 World Health Organization classification for lymphoid neoplasms. While EBVMCU may contain varying numbers of cells with Hodgkin and Reed-Sternberg cells-like morphology, the clinical course is benign and must be distinguished from lymphomas. Patients who develop EBVMCU are commonly immunocompromised, with methotrexate (MTX) as the leading cause. Read More

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Treatment of Psychogenic Nonepileptic Seizures.

Curr Neurol Neurosci Rep 2022 Jun 8. Epub 2022 Jun 8.

Rhode Island Hospital, Brown University, Providence, RI, USA.

Purpose Of Review: Psychogenic nonepileptic seizures (PNES) are the most common Functional Neurological Disorder/Conversion Disorder subtype. Significant advances have been made related to diagnosis, neurobiology, and treatment. In this review, we summarize updates in diagnosis and management over the past 3 years. Read More

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Investigating CRISPR/Cas9 gene drive for production of disease-preventing prion gene alleles.

PLoS One 2022 7;17(6):e0269342. Epub 2022 Jun 7.

Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada.

Prion diseases are a group of fatal neurodegenerative disorders that includes chronic wasting disease, which affects cervids and is highly transmissible. Given that chronic wasting disease prevalence exceeds 30% in some endemic areas of North America, and that eventual transmission to other mammalian species, potentially including humans, cannot be ruled out, novel control strategies beyond population management via hunting and/or culling must be investigated. Prion diseases depend upon post-translational conversion of the cellular prion protein, encoded by the Prnp gene, into a disease-associated conformation; ablation of cellular prion protein expression, which is generally well-tolerated, eliminates prion disease susceptibility entirely. Read More

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