keyword
https://read.qxmd.com/read/38609057/combinational-strategy-using-albumin-based-nanoparticles-to-enable-synergetic-anti-rheumatic-efficacy-and-reduced-hepatotoxicity
#1
JOURNAL ARTICLE
Jiao Li, Xiqian Zhang, Lihua Pan, Xin Lin, Bin Zhang, Jianheng Ren, Qin Wang
Methotrexate (MTX) is recognized as the golden standard for rheumatoid arthritis (RA) treatment. However, it can cause liver damage in long-term application. Although nanomedicines can target to inflamed sites, most of them tend to accumulate in liver. Glycyrrhizinic acid (GA) holds potential to reverse MTX-associated hepatotoxicity. The combination of GA and MTX might achieve a synergistic anti-inflammatory efficacy and reduced hepatotoxicity. As MTX and GA have totally different in vivo performance, it is necessary to co-encapsulate them in one carrier to coordinate their in vivo fates...
April 10, 2024: International Journal of Pharmaceutics
https://read.qxmd.com/read/38469656/clinical-findings-of-hyperechoic-substantia-nigra-in-patients-with-parkinson-s-disease
#2
JOURNAL ARTICLE
Yongyan Fan, Jianjun Ma, Dawei Yang, Xiaohuan Li, Keke Liang, Zonghan She, Xuelin Qi, Xiaoxue Shi, Qi Gu, Jinhua Zheng, Dongsheng Li
This study aims to analyse hyperechoic substantia nigra (HSN) characteristics and the correlation of HSN with clinical features and blood biomarkers in patients with Parkinson's disease (PD). Transcranial sonography (TCS) evaluations of the substantia nigra (SN) were performed in 40 healthy controls and 71 patients with PD, including patients with SN hyperechogenicity (SN+) and those with normal SN echogenicity (SN-). Evaluation of motor and non-motor symptoms was assessed by a series of rating scales. The uricase method was used to determine serum uric acid (UA) levels, and enzyme-linked immunosorbent assay (ELISA) was used to measure plasma interleukin (IL)-1β levels...
March 12, 2024: European Journal of Neuroscience
https://read.qxmd.com/read/38249105/silica-nanoparticles-disclose-a-detailed-neurodegeneration-profile-throughout-the-life-span-of-a-model-organism
#3
JOURNAL ARTICLE
Annette Limke, Gereon Poschmann, Kai Stühler, Patrick Petzsch, Thorsten Wachtmeister, Anna von Mikecz
The incidence of age-related neurodegenerative diseases is rising globally. However, the temporal sequence of neurodegeneration throughout adult life is poorly understood. To identify the starting points and schedule of neurodegenerative events, serotonergic and dopaminergic neurons were monitored in the model organism C. elegans , which has a life span of 2-3 weeks. Neural morphology was examined from young to old nematodes that were exposed to silica nanoparticles. Young nematodes showed phenotypes such as dendritic beading of serotonergic and dopaminergic neurons that are normally not seen until late life...
January 12, 2024: Journal of Xenobiotics
https://read.qxmd.com/read/38127184/one-pot-degradable-silica-nanocarriers-with-encapsulated-oligonucleotides-for-mitochondrial-specific-targeting
#4
JOURNAL ARTICLE
Chloe Trayford, Alissa Wilhalm, Pamela Habibovic, Hubert Smeets, Florence van Tienen, Sabine van Rijt
Mutations in nuclear and mitochondrial genes are responsible for severe chronic disorders such as mitochondrial myopathies. Gene therapy using antisense oligonucleotides is a promising strategy to treat mitochondrial DNA (mtDNA) diseases by blocking the replication of the mutated mtDNA. However, transport vehicles are needed for intracellular, mitochondria-specific transport of oligonucleotides. Nanoparticle (NP) based vectors such as large pore mesoporous silica nanoparticles (LP) often rely on surface complexation of oligonucleotides exposing them to nucleases and limiting mitochondria targeting and controlled release ability...
December 21, 2023: Discov Nano
https://read.qxmd.com/read/38057899/evaluating-an-addiction-medicine-unit-in-sudbury-ontario-canada-a-mixed-methods-study-protocol
#5
JOURNAL ARTICLE
Kristen A Morin, Karla Ghartey, Adele Bodson, Alexandra Sirois, Tara Leary
BACKGROUND: In response to the escalating global prevalence of substance use and the specific challenges faced in Northern Ontario, Canada, an Addiction Medicine Unit (AMU) was established at Health Sciences North (HSN) in Sudbury. This protocol outlines the approach for a comprehensive evaluation of the AMU, with the aim of assessing its impact on patient outcomes, healthcare utilization, and staff perspectives. METHODS: We conducted a parallel mixed-method study that encompassed the analysis of single-center-level administrative health data and primary data collection, including a longitudinal observational study (target n = 1,200), pre- and post-admission quantitative interviews (target n = 100), and qualitative interviews (target n = 25 patients and n = 15 staff)...
December 6, 2023: BMC Health Services Research
https://read.qxmd.com/read/37975848/gaze-scanning-at-street-crossings-by-pedestrians-with-homonymous-hemianopia-with-and-without-hemispatial%C3%A2-neglect
#6
JOURNAL ARTICLE
Shrinivas Pundlik, Matteo Tomasi, Kevin E Houston, Ayush Kumar, Prerana Shivshanker, Alex R Bowers, Eli Peli, Gang Luo
PURPOSE: To investigate compensatory gaze-scanning behaviors during street crossings by pedestrians with homonymous hemianopia (HH) and hemispatial neglect (HSN). METHODS: Pedestrians with right homonymous hemianopia (RHH) and left homonymous hemianopia without (LHH) and with left spatial-neglect (LHSN) walked on city streets wearing a gaze-tracking system that also captured scene videos. Street-crossing instances were manually annotated, and horizontal gaze scan of magnitude ≥20° and scanning rates were compared within-subject, between the side of the hemifield loss (BlindSide) and the other side (SeeingSide)...
November 1, 2023: Investigative Ophthalmology & Visual Science
https://read.qxmd.com/read/37630393/hirsutine-an-emerging-natural-product-with-promising-therapeutic-benefits-a-systematic-review
#7
REVIEW
Md Shimul Bhuia, Polrat Wilairatana, Jannatul Ferdous, Raihan Chowdhury, Mehedi Hasan Bappi, Md Anisur Rahman, Mohammad S Mubarak, Muhammad Torequl Islam
Fruits and vegetables are used not only for nutritional purposes but also as therapeutics to treat various diseases and ailments. These food items are prominent sources of phytochemicals that exhibit chemopreventive and therapeutic effects against several diseases. Hirsutine (HSN) is a naturally occurring indole alkaloid found in various Uncaria species and has a multitude of therapeutic benefits. It is found in foodstuffs such as fish, seafood, meat, poultry, dairy, and some grain products among other things...
August 19, 2023: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/37622582/expression-of-macrophage-dendritic-cell-related-molecules-in-lymph-node-sinus-macrophages
#8
JOURNAL ARTICLE
Rin Yamada, Koji Ohnishi, Cheng Pan, Hiromu Yano, Yukio Fujiwara, Takuya Shiota, Yoshiki Mikami, Yoshihiro Komohara
The role of sinus macrophages (SMs) in anticancer immune responses has received considerable interest in recent years, but the types of molecules that are expressed in human SMs have not yet been clarified in detail. We therefore sought to identify dendritic cell (DC)- or macrophage-related molecules in SMs in human lymph nodes (LNs). SMs are strongly positive for Iba-1, CD163, CD169, and CD209. CD169 (clone SP216) reacted with almost all SMs, mainly in the cell surface membrane, while CD169 (clone HSn 7D2) reacted with a subpopulation of SMs, mainly in the cytoplasm, with a significant increase observed after IFN-α stimulation...
August 25, 2023: Microbiology and Immunology
https://read.qxmd.com/read/37508271/antimicrobial-efficacy-of-7-hydroxyflavone-derived-from-amycolatopsis-sp-hsn-02-and-its-biocontrol-potential-on-cercospora-leaf-spot-disease-in-tomato-plants
#9
JOURNAL ARTICLE
Halaswamy Hire Math, Raju Suresh Kumar, Bidhayak Chakraborty, Abdulrahman I Almansour, Karthikeyan Perumal, Girish Babu Kantli, Sreenivasa Nayaka
The actinomycete strain HSN-02 was isolated from the soil of a mining field in the Sandur region, Bellary, Karnataka, India. According to the morphological, cultural, physiological, and biochemical characteristics and the 16S rDNA sequence analysis, the strain HSN-02 was identified as Amycolatopsis sp. The antimicrobial activity strain HSN-02 presented stable and moderate inhibitory activity against human pathogens. In pot experiments in the greenhouse, the development of Cercospora leaf spot was markedly suppressed by treatment with the purified compound from the strain HSN-02, and the control efficacy was 45...
July 11, 2023: Antibiotics
https://read.qxmd.com/read/37394851/-analysis-of-spontaneous-nystagmus-and-the-frequency-characteristics-of-affected-semicircular-canals-in-patients-with-vestibular-neuritis
#10
JOURNAL ARTICLE
H L Wang, L L Si, Y N Yan, H X Sun, Z D Li, X Y Li
Objective: To investigate the spontaneous nystagmus (SN) and the frequency characteristics of affected semicircular canals in patients with vestibular neuritis (VN). Methods: This is a cross-sectional study. A total of 61 patients with VN admitted to the Department of Neurology of Shanxi Bethune Hospital from June 2020 to October 2021, 39 were male and 22 were female, with a mean age of (46±13) years old and male to female ratio of 1.77∶1. According to SN characteristics, 61 patients were divided into non-nystagmus group(nSN), horizontal nystagmus group(hSN) and horizontal-torsional nystagmus group (htSN)...
July 1, 2023: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://read.qxmd.com/read/37256269/authentic-sn%C3%A2-b-double-bonds-in-polar-stannaborene-derivatives
#11
JOURNAL ARTICLE
Magda Zweigart, Klaus Eichele, Hartmut Schubert, Christian P Sindlinger, Lars Wesemann
We report on the synthesis of an authentic Sn═B-moiety realized in a stannaborenyl anion and stannaborenium cation. Starting with an oxidative addition of boron tribromide to a stannylene-phosphine Lewis pair [ o -C6 H4 (Ar*BrSn-BBr2 -PPh2 )] ( 2a ) [Ar* = C6 H3 (2,6-Trip)2 , Trip = 2,4,6-C6 H2 i Pr3 ] was synthesized. Reduction of 2a with magnesium yields the Grignard-type stannaborene [ o -C6 H4 (Ar*Sn═B{PPh2 }MgBr{thf})]2 ( 3 )2 featuring a Sn═B double bond and a B-Mg interaction. Following an alternative protocol, hydride substitution at 2a yields the tinhydride [ o -C6 H4 (Ar*HSn-BBr2 -PPh2 )] ( 4a )...
May 31, 2023: Journal of the American Chemical Society
https://read.qxmd.com/read/37253523/-further-exploration-of-the-classification-and-clinical-value-of-head-shaking-nystagmus
#12
JOURNAL ARTICLE
Qiaomei Deng, Xueqing Zhang, Chao Wen, Qiang Liu, Yao Liu, Taisheng Chen
Objective: To investigate the classification of head shaking nystagmus(HSN) and its clinical value in vestibular peripheral diseases. Methods: Clinical data of 198 patients with peripheral vestibular disorders presenting with HSN were retrospectively analyzed. Video Nystagmograph(VNG) was applied to detect spontaneous nystagmus(SN), HSN, and Caloric Test(CT). The intensity and direction of SN and HSN as well as the unilateral weakness(UW) and direction preponderance(DP) values in caloric test was analyzed in patients...
June 2023: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://read.qxmd.com/read/37236183/muscle-directed-mechanosensory-feedback-activates-egg-laying-circuit-activity-and-behavior-in-caenorhabditis-elegans
#13
JOURNAL ARTICLE
Emmanuel Medrano, Kevin M Collins
Mechanosensory feedback of the internal reproductive state drives decisions about when and where to reproduce.1 For instance, stretch in the Drosophila reproductive tract produced by artificial distention or from accumulated eggs regulates the attraction to acetic acid to ensure optimal oviposition.2 How such mechanosensory feedback modulates neural circuits to coordinate reproductive behaviors is incompletely understood. We previously identified a stretch-dependent homeostat that regulates egg laying in Caenorhabditis elegans...
May 24, 2023: Current Biology: CB
https://read.qxmd.com/read/37199681/dnmt1-associated-sensory-neuropathy-and-cerebellar-ataxia-a-novel-variant-and-review-of-genotype-phenotype-correlation
#14
Poornima Jayadev Menon, Petya Bogdanova-Mihaylova, Garret McDermott, Paul Crowley, Ronan P Killeen, Michael D Alexander, Sean O'Dowd, Sinéad M Murphy
AIM: Hereditary sensory neuropathy (HSN) 1E is a neurodegenerative disorder caused by pathogenic variants in DNA methyltransferase 1 (DNMT1). It is characterised by sensorineural deafness, sensory neuropathy and cognitive decline. Variants in DNMT1 are also associated with autosomal dominant cerebellar ataxia, deafness and narcolepsy. METHODS: A 42-year-old man presented with imbalance, lancinating pain, numerous paucisymptomatic injuries, progressive deafness since his mid-20s, mild cognitive decline and apathy...
September 2023: Journal of the Peripheral Nervous System: JPNS
https://read.qxmd.com/read/36856139/a-novel-nonsense-variant-in-the-atl3-gene-is-associated-with-disturbed-pain-sensitivity-numbness-of-distal-limbs-and-muscle-weakness
#15
JOURNAL ARTICLE
Sanaz Mohammadi, Hossein Jafari Khamirani, Maryam Baneshi, Neda Kamal, Jamal Manoocheri, Mahsa Saffar, Mehdi Dianatpour, Seyed Mohammad Bagher Tabei, Seyed Alireza Dastgheib
Introduction Hereditary sensory neuropathy (HSN) describes as a heterogeneous group of peripheral neuropathies. HSN type 1 (HSN1) is one subtype characterized by distal sensory impairment that occurs in the form of numbness, tingling, or pain. To date, only two variants in the atlastin GTPase 3 (ATL3) gene have been identified that result in hereditary sensory neuropathy type 1F (HSN1F) with autosomal dominantinheritance. Methods We sudied and examined who present with sensory disturbances and muscle weakness in their lower limb...
March 1, 2023: Annals of Human Genetics
https://read.qxmd.com/read/36852054/thermoactive-metallo-keratinase-from-bacillus-sp-nfh5-characterization-structural-elucidation-and-potential-application-as-detergent-additive
#16
JOURNAL ARTICLE
Lupho Kokwe, Nonso E Nnolim, Lewis I Ezeogu, Bruce Sithole, Uchechukwu U Nwodo
In recent times, robust green technological developments have advanced the goal of a circular economy by minimizing waste generation. The study was undertaken to explore the keratinolytic activity of chicken feather-degrading bacteria from South African soil. Isolates coded as SSN-01 and HSN-01 were identified as Bacillus sp. NFH5 and Bacillus sp. FHNM and their sequences were deposited in GenBank, with accession numbers MW165830.1 and MW165831.1, respectively. Extracellular enzyme production and thiol group generation by Bacillus sp...
February 2023: Heliyon
https://read.qxmd.com/read/36721135/using-hba1c-measurements-and-the-finnish-diabetes-risk-score-to-identify-undiagnosed-individuals-and-those-at-risk-of-diabetes-in-primary-care
#17
JOURNAL ARTICLE
Elín Arnardóttir, Árún K Sigurðardóttir, Marit Graue, Beate-Christin Hope Kolltveit, Timothy Skinner
BACKGROUND: Prevalence of prediabetes and type 2 diabetes mellitus (T2DM) is increasing worldwide. The objective of this study was to determine the proportion of people in Northern Iceland with prediabetes, at risk of developing T2DM or with manifest undiagnosed T2DM, as this information is lacking in Iceland. METHODS: A cross-sectional study. Clients of the three largest primary health care centres in the Health Care Institution of North Iceland (HSN) were invited to participate if fulfilling the following inclusion criteria: a) aged between 18 and 75 years, b) not diagnosed with diabetes, c) speaking and understanding Icelandic or English fluently and d) living in the included service area...
January 31, 2023: BMC Public Health
https://read.qxmd.com/read/36633655/hyper-selective-neurectomy-for-knee-flexion-spasticity-anatomic-bases-and-surgical-technique
#18
JOURNAL ARTICLE
Mohammadreza Emamhadi, Babak Alijani, Mohammad Haghani Dogahe, Amirreza Emamhadi
PURPOSE: Spasticity may result from damage to neurons of the corticospinal tracts and loss of inhibitory supraspinal influences following head trauma. Traditionally, peripheral nerve surgeries for spasticity in lower limbs were limited to selective neurectomies. Here we used hyper-selective neurectomy (HSN) to release hamstring spasticity at the muscle spindle level. METHODS: This study describes anatomic bases and surgical technique of HSN and its results in treating spastic knee flexion in a 23-year-old male who developed severe spasticity following severe brain injury...
February 2023: Surgical and Radiologic Anatomy: SRA
https://read.qxmd.com/read/36630595/antioxidant-action-of-persulfides-and-polysulfides-against-free-radical-mediated-lipid-peroxidation
#19
JOURNAL ARTICLE
Takayuki Kaneko, Yuichiro Mita, Kanako Nozawa-Kumada, Masana Yazaki, Mieko Arisawa, Etsuo Niki, Noriko Noguchi, Yoshiro Saito
Hydrogen sulfide, hydropersulfides, and hydropolysulfides have been revealed to play important physiological roles such as cell signaling and protection against oxidative stress, but the underlying mechanisms and dynamics of action remain elusive. It is generally accepted that these species act by two-electron redox mechanisms, while the involvement of one-electron redox chemistry has received less attention. In this study, the radical-scavenging activity of hydrogen persulfide, hydrogen polysulfides (HSn H n  = 2-4), and diallyl- or dialkyl-sulfides (RSn R, n  = 1-4) was measured...
January 11, 2023: Free Radical Research
https://read.qxmd.com/read/36498552/reliability-of-monothermal-caloric-test-as-screening-test-of-vestibular-system
#20
JOURNAL ARTICLE
Salman F Alhabib, Issam Saliba
This retrospective study completed at a tertiary care center aimed to assess the monothermal caloric test (MCT) as a screening test, using the bithermal caloric test (BCT) as a reference. Additionally, it attempts to measure the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of a fixed inter-auricular difference (IAD) value for both cold and warm stimuli using water irrigation. Medical records of 259 patients referred for vestibular symptoms who underwent BCT with water irrigation were reviewed...
November 26, 2022: Journal of Clinical Medicine
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