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Integrating Environmental Exposure Profiles with Temporal Transcriptomics: An Explainable Machine Learning Model for Cardiovascular Disease Risk Prediction and Biological Validation.

BACKGROUND: Cardiovascular disease (CVD) pathogenesis is strongly associated with environmental exposures and metabolic factors. This study … ), urinary inorganic arsenic species As (III), metal/element biomarkers (e.g., iodine, cadmium, and cesium), and serum biomarkers such as creatinine, glycated hemoglobin (HbA1c), and alkaline phosphatase (ALP). SHAP analysis quantified the contribution of these features to CVD risk and effectively stratified individuals into high- and low-risk groups, su …

Auditory Golgi cells are interconnected predominantly by electrical synapses.

The mossy fiber-granule cell-parallel fiber system conveys proprioceptive and corollary discharge information to principal cells in cerebellum-like systems. In the dorsal cochlear nucleus (DCN), Golgi cells inhibit granule cells and thus regulate information transfer along the mossy fiber-granule cell-parallel fiber pathway. Whereas excitatory synaptic inputs to Golgi cells are well understood, inhibitory and electrical synaptic inputs to Golgi cells have not been examined. Using paired recordings in a mouse brain slice preparation, we find that Golgi cells of the cochlear nucleus reliably for

Metal chloride primers for bonding dentine with tri-n-butylborane-initiated luting agents.

OBJECTIVES: The bonding of resin to dentine is dependent largely on surface modifications. The purpose of the present study was to test the hypothesis that a role of the metal chlorides used as primers is to initiate polymerization of resin at the resin-dentine interface, thereby affecting bond strength. METHODS: Nine primers were evaluated, comprising aqueous 2-hydroxyethyl methacrylate (HEMA) solutions containing AICl3, CeCl3, CoCl2, CuCl2, FeCl3, NiCl2, MgCl2, SnCl2 or ZnCl2, respectively. One of the two luting agents (Super-Bond resin) consisted of methyl methacrylate (MMA), 4-methacryloy

Common components of patch-clamp internal recording solutions can significantly affect protein kinase A activity.

Common components of whole-cell internal recording solutions were tested both in vitro and in patch-clamp experiments for their effects on the activity of cAMP-dependent protein kinase. Potassium fluoride (KF), 440 mM trimethylamine chloride and exclusion of bovine serum albumin (BSA) decreased the activity of the enzyme, while ethylene glycol-bis (beta-aminoethyl ether) N,N,N',N'-tetraacetic acid (EGTA) and the potassium salts of aspartate, gluconate, methylsulfate and monobasic phosphate increased its activity. Addition of KF to the internal solution produced a hyperpolarizing shift in the V

Spontaneous and radiation-induced renal tumors in the Eker rat model of dominantly inherited cancer.

Hereditary renal carcinoma (RC) in the rat, originally reported by R. Eker in 1954, is an example of a Mendelian dominant predisposition to a specific cancer in an experimental animal. At the histologic level, RCs develop through multiple stages from early preneoplastic lesions (e.g., atypical tubules) to adenomas in virtually all heterozygotes by the age of 1 year. The homozygous mutant condition is lethal at approximately 10 days of fetal life. Ionizing radiation induces additional tumors in a linear dose-response relationship, suggesting that in heterozygotes two events (one inherited, one

Investigation of the Ba2+-sensitive NH4+ transport pathways in the apical cell membrane of primary cultured rabbit MTAL cells.

BACKGROUND: Several apical ammonium (NH(4)(+)/NH(3)) transport pathways have been described in medullary thick ascending limb (MTAL) cells. The exact nature and importance of some of these pathways remain controversial. METHODS: Ammonium transport in primary cultured rabbit MTAL cells was investigated by measuring intracellular pH (pH(i)). RESULTS: To create physiological conditions, experiments were performed in the symmetrical presence of NH(4)Cl, which acidified the cells to pH(i) 6.89. When blockers of apical NH(4)(+) transport were used, the cells alkalinized due to a decreased NH(4)(+)

Uncertainties in dose coefficients from ingestion of 131I, 137Cs, and 90Sr.

Quantification of uncertainties in doses from intakes of radionuclides is important in risk assessments and epidemiologic studies of individuals exposed to radiation. In this study, the uncertainties in the doses per unit intake (i.e., dose coefficients) for ingestion of 131I, 137Cs, and 90Sr by healthy individuals have been determined. Age-dependent thyroid dose coefficients were derived for 131I. The analysis for 131I uses recent measurements of thyroid volume obtained by ultrasonography, which indicate a thyroid mass lower than that previously obtained using autopsy measurements. The coeffi

Smart (simultaneous modulated accelerated radiation therapy) boost: a new accelerated fractionation schedule for the treatment of head and neck cancer with intensity modulated radiotherapy.

PURPOSE: To report the initial experience in the definitive treatment of head and neck carcinomas using SMART (Simultaneous Modulated Accele … e complete responders. Both patients had nasopharyngeal primary; one was retreated with radioactive Cesium-137 implant and the other died from the disease. CLINICAL FEASIBILITY: The average treatment time for a three-arc treatment was 17.5 minutes and 2.5 minutes for each additional arc. Eleven patients (55%) had four-arc treatment while six patients (30 …

The expression and role of hyperpolarization-activated and cyclic nucleotide-gated channels in endocrine anterior pituitary cells.

Pituitary cells fire action potentials independently of external stimuli, and such spontaneous electrical activity is modulated by a large variety of hypothalamic and intrapituitary agonists. Here, we focused on the potential role of hyperpolarization-activated and cyclic nucleotide-gated (HCN) channels in electrical activity of cultured rat anterior pituitary cells. Quantitative RT-PCR analysis showed higher level of expression of mRNA transcripts for HCN2 and HCN3 subunits and lower expression of HCN1 and HCN4 subunits in these cells. Western immunoblot analysis of lysates from normal and GH

Long-acting PGE2 and Lisinopril Mitigate H-ARS.

Thrombocytopenia is a major complication in hematopoietic-acute radiation syndrome (H-ARS) that increases the risk of mortality from uncontrolled hemorrhage. There is a great demand for new therapies to improve survival and mitigate bleeding in H-ARS. Thrombopoiesis requires interactions between megakaryocytes (MKs) and endothelial cells. 16, 16-dimethyl prostaglandin E2 (dmPGE2), a longer-acting analogue of PGE2, promotes hematopoietic recovery after total-body irradiation (TBI), and various angiotensin-converting enzyme (ACE) inhibitors mitigate endothelial injury after radiation exposure. H

The Ca2+ channel subunit beta2 regulates Ca2+ channel abundance and function in inner hair cells and is required for hearing.

Hearing relies on Ca(2+) influx-triggered exocytosis in cochlear inner hair cells (IHCs). Here we studied the role of the Ca(2+) channel subunit Ca(V)beta(2) in hearing. Of the Ca(V)beta(1-4) mRNAs, IHCs predominantly contained Ca(V)beta(2). Hearing was severely impaired in mice lacking Ca(V)beta(2) in extracardiac tissues (Ca(V)beta(2)(-/-)). This involved deficits in cochlear amplification and sound encoding. Otoacoustic emissions were reduced or absent in Ca(V)beta(2)(-/-) mice, which showed strongly elevated auditory thresholds in single neuron recordings and auditory brainstem response me

Total Body Irradiation in Haematopoietic Stem Cell Transplantation: A Comprehensive Literature Review and Institutional Experience from the Policlinico of Catania.

Background and Objectives: Total body irradiation (TBI) remains a cornerstone of conditioning for allogeneic haematopoietic stem-cell transplantation (HSCT). Whereas early research debated the need for irradiation, contemporary investigations focus on optimising dose, fractionation and delivery techniques. Material and Methods: We synthesised six decades of evidence, spanning from single-fraction cobalt treatments to modern helical tomotherapy and intensity-modulated total-marrow/lymphoid irradiation (TMI/TMLI). To complement the literature, we reported our institutional experience on 77 paedi

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… In 1961, Jacobs and Pape described one of the first dedicated TBI chambers based on cesium-137 sources. The sources were contained in rods placed at the extremity of the treatment bed, at 2 m, and were controlled by lead filters and by an on/off system [ 27 ]. … From cesium-137 to cobalt-60, in 1959, Sahler developed one of the first dual-source cobalt-based radiation units for TBI, which allowed the delivery of a parallel opposed field at about 3 m from the patient, with a low dose rate irradiation (<10 cGy/min) [ 28 ]. …

Supraventricular Tachycardia and Postural Orthostatic Tachycardia Syndrome Overlap: A Retrospective Study.

Postural orthostatic tachycardia syndrome (POTS) and supraventricular tachycardia (SVT) are disease states with distinctive features but overlapping clinical manifestations. Currently, studies on the presence of underlying SVT in patients with POTS are lacking. This retrospective study analyzed 64 patients [mean age: 43 years; 41 (61%) women] who had a POTS diagnosis and were found to have concomitant SVT during rhythm monitoring from September 1, 2013 to September 30, 2019 at our Syncope and Autonomic Disorders Clinic. The outcomes assessed were changes in disease severity, frequency of sympt

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… Satoh T Zipes DP Cesium-induced atrial tachycardia degenerating into atrial fibrillation in dogs: atrial torsades de pointes? J Cardiovasc Electrophysiol 1998 9 9 970 975 [CrossRef] [PubMed] 9786077 10.1111/j.1540-8167.1998.tb00137.x 17. …

Channels involved in transient currents unmasked by removal of extracellular calcium in cardiac cells.

In cardiac cells that lack macroscopic transient outward K(+) currents (I(to)), the removal of extracellular Ca(2+) can unmask "I(to)-like" currents. With the use of pig ventricular myocytes and the whole cell patch-clamp technique, we examined the possibility that cation efflux via L-type Ca(2+) channels underlies these currents. Removal of extracellular Ca(2+) and extracellular Mg(2+) induced time-independent currents at all potentials and time-dependent currents at potentials greater than -50 mV. Either K(+) or Cs(+) could carry the time-dependent currents, with reversal potential of +8 mV

Radiation response of cells during altered protein thiol redox.

The major focus of this work was to investigate how altered protein thiol redox homeostasis affects radiation-induced cell death. We used the cells of wild-type CHO cell line K1, the CHO cell line E89, which is null for G6PD activity, and a radiation-sensitive CHO cell line, XRS5. The protein-thiol redox status of cells was altered with cell-permeable disulfides, hydroxyethyldisulfide (HEDS) or lipoate. HEDS is primarily reduced by thioltransferase (glutaredoxin), with GSH as the electron donor. In contrast, lipoate is reduced by thioredoxin reductase. HEDS was reduced at a greater rate than l

Low-dose radiation-induced enhancement of thymic lymphomagenesis in Lck-Bax mice is dependent on LET and gender.

The hypothesis that mitochondrial dysfunction and increased superoxide levels in thymocytes over expressing Bax (Lck-Bax1 and Lck-Bax38&1) contributes to lymphomagenesis after low-dose radiation was tested. Lck-Bax1 single-transgenic and Lck-Bax38&1 double-transgenic mice were exposed to single whole-body doses of 10 or 100 cGy of (137)Cs or iron ions (1,000 MeV/n, 150 keV/μm) or silicon ions (300 MeV/n, 67 keV/μm). A 10 cGy dose of (137)Cs significantly increased the incidence and onset of thymic lymphomas in female Lck-Bax1 mice. In Lck-Bax38&1 mice, a 100 cGy dose of high-LET iron ions caus

Characterization of the in vitro effects of 5-hydroxytryptamine (5-HT) on identified neurones of the rat dorsal motor nucleus of the vagus (DMV).

1 Whole cell patch clamp techniques were used on thin brainstem slices to investigate the effects of 5-hydroxytryptamine (5-HT) on gastrointestinal-projecting dorsal motor nucleus of the vagus (DMV) neurones. Neurones were identified as projecting to the stomach (n=122) or intestine (n=84) if they contained the fluorescent tracer Dil after it had been applied to the gastric fundus, corpus or antrum/pylorus or to the duodenum or caecum. 2 A higher proportion of intestinal neurones (69%) than gastric neurones (47%) responded to 5-HT with a concentration-dependent inward current which was antagon

Air toxics exposure from vehicle emissions at a U.S. border crossing: Buffalo Peace Bridge Study.

The Peace Bridge in Buffalo, New York, which spans the Niagara River at the east end of Lake Erie, is one of the busiest U.S. border crossin … Other metals (beryllium, sodium, magnesium, potassium, titanium, manganese, cobalt, strontium, tin, cesium, and lanthanum) showed significant increases downwind as well. Sulfur, arsenic, selenium, and a few other elements appeared to be markers for regional transport as their upwind and downwind concentrations were correlated, with ratios near unity. Usi …

Customized Marketing Strategies for Cancer Immunocyte Therapy Based on its Distinctive Attributes.

Cancer constitutes a persistent global health challenge, and immunocyte therapy has emerged as one approach in oncological care. This narrative review aimed to systematically analyze, synthesize, and critically interpret the therapeutic characteristics, advantages, market landscape, and current access barriers of cancer immunocyte therapy, based on thematic clustering and cross‑study integration of clinical evidence, market data, and industry reports. Immunocyte therapy exhibits distinctive features including personalization, long‑term immune memory, and observed efficacy in refractory maligna

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… High technological dependence Localized lesions 3D-CRT, IMRT, Cesium-131, Ruthenium-106, Iodine-125 Moderate Moderate High (standardized) [ 27–32 ] Hormone therapy 1. Inhibit hormone synthesis 2. Antagonize hormone receptor signals 3. Inhibit hormone release 4. … Salvage resection plus cesium-131 brachytherapy durably controls post-SRS recurrent brain metastases . J Neurooncol . 2022 ; 159 ( 3 ): 609 – 618 . doi: 10.1007/s11060-022-04101-9 35896906 PMC9328626 32. Pe’er J . Ruthenium-106 brachytherapy . …

Коррозионное поведение Incoloy_800H, Hasteloy ¶G35> и 316L бесшовной стали в смеси фтористых молотков FLINAK и ее паров

Данная статья рассматривает результаты эксперимента по коррозии, который исследует переходную зону между нижней и верхней областями образца. В этом эксперименте нижняя половина поверхности образца подвергается воздействию расплавленной соли, а верхняя половина поверхности образца подвергается воздействию паров, генерируемых расплавленной солью FLiNak. Для коррозионного эксперимента были выбраны сплавы Incoloy®800H и Hastelloy®G35® и нержавеющая сталь 316L на основе их содержания хрома. Эксперимент был проведен при температуре 600 °C в течение 100 часов. Результаты эксперимента показывают, что

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… Fundamental study on the vaporization of cesium and iodine dissolved in LiF-NaF-KF molten salt J. Nucl. Mater. 2019 522 136 143 10.1016/j.jnucmat.2019.05.014 25. Maxwell C.I. Molecular dynamics study of fission gas behaviour and solubility in molten FLiNaK salt J. Nucl. …