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https://www.readbyqxmd.com/read/29241772/location-of-skin-lesions-in-henoch-sch%C3%A3-nlein-purpura-and-its-association-with-significant-renal-involvement
#1
Jessica St John, Priyanka Vedak, Anna Cristina Garza-Mayers, Mai P Hoang, Sagar U Nigwekar, Daniela Kroshinsky
BACKGROUND: Henoch-Schönlein purpura (HSP) is a small vessel IgA-predominant vasculitis. OBJECTIVE: To describe adult patients with HSP and determine if the distribution of skin lesions (ie, purpura above the waist or purpura below the waist only), is a predictor of significant renal involvement at the time of the skin biopsy and the months following. METHODS: A retrospective study on renal function from 72 adult patients with skin-biopsy proven HSP...
January 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29241701/production-of-cocrystals-in-an-excipient-matrix-by-spray-drying
#2
David Walsh, Dolores R Serrano, Zelalem Ayenew Worku, Brid A Norris, Anne Marie Healy
Spray drying is a well-established scale-up technique for the production of cocrystals. However, to the best of our knowledge, the effect of introducing a third component into the feed solution during the spray drying process has never been investigated. Cocrystal formation in the presence of a third component by a one-step spray drying process has the potential to reduce the number of unit operations which are required to produce a final pharmaceutical product (e.g. by eliminating blending with excipient)...
December 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29240668/heat-shock-proteins-in-vascular-diabetic-complications-review-and-future-perspective
#3
REVIEW
Stefania Bellini, Federica Barutta, Raffaella Mastrocola, Luigi Imperatore, Graziella Bruno, Gabriella Gruden
Heat shock proteins (HSPs) are a large family of proteins highly conserved throughout evolution because of their unique cytoprotective properties. Besides assisting protein refolding and regulating proteostasis under stressful conditions, HSPs also play an important role in protecting cells from oxidative stress, inflammation, and apoptosis. Therefore, HSPs are crucial in counteracting the deleterious effects of hyperglycemia in target organs of diabetes vascular complications. Changes in HSP expression have been demonstrated in diabetic complications and functionally related to hyperglycemia-induced cell injury...
December 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29237575/acclimation-capacity-of-the-cardiac-hsp70-and-hsp90-response-to-thermal-stress-in-lake-trout-salvelinus-namaycush-a-stenothermal-ice-age-relict
#4
Nicholas I Kelly, Chris C Wilson, Suzanne Currie, Gary Burness
The ability of cold-adapted species to persist in the face of climate change will depend on the capacity of individuals for thermal acclimation, adaptation, and the degree of physiological variation that exists among populations. We tested the acclimation capacity of cardiac HSP70 and HSP90 in four populations of lake trout (Salvelinus namaycush), a cold-adapted salmonid. We acclimated fish to four temperatures (8°C, 11°C, 15°C, and 19°C) and measured cardiac HSP70 and HSP90 levels by western blot prior to and following an acute (1h) heat shock at 23°C...
December 10, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29236826/hereditary-spastic-paraplegia-from-1880-to-2017-an-historical-review
#5
Ingrid Faber, Eduardo Rafael Pereira, Alberto R M Martinez, Marcondes França, Hélio Afonso Ghizoni Teive
The authors have constructed a brief timeline of major clinical research related to hereditary spastic paraplegia (HSP). This timeline summarizes the evolution of HSP research, from the first clinical descriptions by Adolf von Strümpell in 1880 to the present day, with the transformation of these diseases into a rapidly-growing and heterogeneous group of neurogenetic diseases.
November 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29236386/characteristics-of-enzyme-linked-immunosorbent-assay-for-detection-of-igg-antibodies-specific-to-%C3%B0-hlamydia-trachomatis-heat-shock-protein-hsp-60
#6
O Yu Galkin, A B Besarab, T N Lutsenko
The goal of this work was to study sensitivity and specificity of the developed ELISA set for the identification of IgG antibodies against Chlamydia trachomatis HSP-60 (using biotinylated tyramine-based signal amplification system). The study was conducted using a panel of characterized sera, as well as two reference ELISA sets of similar purpose. According to the results of ELISA informative value parameters, the ELISA we have developed showed the highest specificity and sensitivity parameters (no false negative or false positive results were registered)...
January 2017: Ukrainian Biochemical Journal
https://www.readbyqxmd.com/read/29234427/a-chinese-herbal-formula-gengnianchun-ameliorates-%C3%AE-amyloid-peptide-toxicity-in-a-caenorhabditis-elegans-model-of-alzheimer-s-disease
#7
Fanhui Meng, Jun Li, Yanqiu Rao, Wenjun Wang, Yan Fu
Alzheimer's disease (AD) is an age-related neurodegenerative disorder, and the few drugs that are currently available only treat the symptoms. Traditional medicine or phytotherapy has been shown to protect against AD. In our previous studies, Gengnianchun (GNC), a traditional Chinese medicine formula with a prolongevity effect, protected against Aβ-induced cytotoxicity in pheochromocytoma cells (PC-12 cells) and hippocampal cells. Here, we investigated the effects and possible mechanisms by which GNC protected against Aβ toxicity using transgenic Caenorhabditis elegans CL4176...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234271/the-enigmatic-role-of-gba2-in-controlling-locomotor-function
#8
REVIEW
Marina A Woeste, Dagmar Wachten
The non-lysosomal glucosylceramidase GBA2 catalyzes the hydrolysis of glucosylceramide to glucose and ceramide. Loss of GBA2 function results in accumulation of glucosylceramide. Mutations in the human GBA2 gene have been associated with hereditary spastic paraplegia (HSP) and autosomal-recessive cerebellar ataxia (ARCA). Patients suffering from these disorders exhibit impaired locomotion and neurological abnormalities. GBA2 mutations found in these patients have been proposed to impair GBA2 function. However, the molecular mechanism underlying the occurrence of mutations in the GBA2 gene and the development of locomotor dysfunction is not well-understood...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29230177/effect-of-morinda-citrifolia-noni-enriched-diet-on-hepatic-heat-shock-protein-and-lipid-metabolism-related-genes-in-heat-stressed-broiler-chickens
#9
Joshua Flees, Hossein Rajaei-Sharifabadi, Elizabeth Greene, Lesleigh Beer, Billy M Hargis, Laura Ellestad, Tom Porter, Annie Donoghue, Walter G Bottje, Sami Dridi
Heat stress (HS) has been reported to alter fat deposition in broilers, however the underlying molecular mechanisms are not well-defined. The objectives of the current study were, therefore: (1) to determine the effects of acute (2 h) and chronic (3 weeks) HS on the expression of key molecular signatures involved in hepatic lipogenic and lipolytic programs, and (2) to assess if diet supplementation with dried Noni medicinal plant (0.2% of the diet) modulates these effects. Broilers (480 males, 1 d) were randomly assigned to 12 environmental chambers, subjected to two environmental conditions (heat stress, HS, 35°C vs...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29227447/heat-shock-proteins-in-human-perilymph-implications-for-cochlear-implantation
#10
Heike Schmitt, Ariane Roemer, Carsten Zeilinger, Rolf Salcher, Martin Durisin, Hinrich Staecker, Thomas Lenarz, Athanasia Warnecke
OBJECTIVE: Biomarkers reflecting the etiology and pathophysiology of inner ear diseases are limited. Evaluation of proteins in the perilymph may improve our understanding of inner ear disease. Heat shock proteins (HSP) belong to a superfamily of stress proteins and promote refolding of denatured proteins. The aim of the study was to analyze HSP in human perilymph and to identify possible correlation with audiological and etiologic data. METHODS: Sampling of the perilymph was performed during cochlear implantation and vestibular schwannoma removal...
January 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29214191/vascular-mechanotransduction-data-in-a-rodent-model-of-diabetes-pressure-induced-regulation-of-shp2-and-associated-signaling-in-the-rat-inferior-vena-cava
#11
Kevin M Rice, Nandini D P K Manne, Ravikumar Arvapalli, Gautam K Ginjupalli, Eric R Blough
The effect of diabetes on vascular mechano-transductive response is of great concern. Given the higher rate of vein graft failures associated with diabetes, understanding the multiple cellular and molecular events associated with vascular remodeling is of vital importance. This article represents data related to a study published in Cardiovascular Diabetology [1] (Rice et al., 2006) and Open Journal of Endocrine and Metabolic Diseases [2] (Rice et al., 2015) evaluating the effect of pressurization on rat inferior venae cavae (IVC)...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29212841/hyperbaric-oxygen-pretreatment-benefits-on-decompression-sickness-in-bama-pigs
#12
Long Qing, Hong-Jie Yi, Ye-Wei Wang, Quan Zhou, Dinesh K Ariyadewa, Wei-Gang Xu
Decompression sickness (DCS) occurs when ambient pressure severely reduces during diving and aviation. Hyperbaric oxygen (HBO) pretreatment has been proven to exert beneficial effects on DCS in rats via heat-shock proteins (HSPs). We hypothesize that HBO pretreatment will also reduce DCS via HSPs in swine models. In part 1, six swine were subjected to a session of HBO treatment. HSP 32, 60, 70 and 90 were detected, before and at 6, 12, 18, 24 and 30 h following exposure in lymphocytes. In part 2, another ten swine were randomly assigned into 2 groups, 5 in each...
December 6, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29209898/clinical-application-of-next-generation-sequencing-in-hereditary-spinocerebellar-ataxia-increasing-the-diagnostic-yield-and-broadening-the-ataxia-spasticity-spectrum-a-retrospective-analysis
#13
REVIEW
Daniele Galatolo, Alessandra Tessa, Alessandro Filla, Filippo M Santorelli
One of the hardest challenges in medical genetics is to reach a molecular diagnosis in the presence of rare brain disorders. Hereditary spinocerebellar ataxia (HA), characterized by high clinical and genetic heterogeneity, is among the diseases that present this challenge. HA can have features overlapping with those of other neurological diseases, especially hereditary spastic paraplegia (HSP), as routine clinical application of next generation sequencing (NGS) has confirmed. This article reviews different NGS methods applied in heterogeneous cohorts of patients with suspected HA and suggests that exome sequencing should be considered the first-tier genetic approach in this setting...
December 6, 2017: Neurogenetics
https://www.readbyqxmd.com/read/29209330/the-enigma-of-heat-shock-proteins-in-immune-tolerance
#14
REVIEW
Willem van Eden, Manon A A Jansen, Irene Ludwig, Peter van Kooten, Ruurd van der Zee, Femke Broere
The fundamental problem of autoimmune diseases is the failure of the immune system to downregulate its own potentially dangerous cells, which leads to destruction of tissue expressing the relevant autoantigens. Current immunosuppressive therapies offer relief but fail to restore the basic condition of self-tolerance. They do not induce long-term physiological regulation resulting in medication-free disease remissions. Heat shock proteins (HSPs) have shown to possess the capacity of inducing lasting protective immune responses in models of experimental autoimmune diseases...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29209126/intestinal-parameters-of-oxidative-imbalance-in-celiac-adults-with-extraintestinal-manifestations
#15
Agnieszka Piatek-Guziewicz, Agata Ptak-Belowska, Magdalena Przybylska-Felus, Pawel Pasko, Pawel Zagrodzki, Tomasz Brzozowski, Tomasz Mach, Malgorzata Zwolinska-Wcislo
AIM: To evaluate selected intestinal parameters of oxidative stress, and antioxidant capacity in adult celiac disease patients with extraintestinal manifestations. METHODS: The study involved 85 adult patients divided into the following subgroups: (1) patients with newly diagnosed celiac disease (CD) (n = 7); (2) celiac patients not adhering to a gluten-free diet (GFD) (n = 22); (3) patients with CD on the GFD (n = 31); and (4) patients with functional disorders of the gastrointestinal tract, serving as controls (n = 25)...
November 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29208684/central-npy-y5-sub-receptor-partially-functions-as-a-mediator-of-npy-induced-hypothermia-and-affords-thermotolerance-in-heat-exposed-fasted-chicks
#16
Hatem M Eltahan, Mohammad A Bahry, Hui Yang, Guofeng Han, Linh T N Nguyen, Hiromi Ikeda, Mohamed N Ali, Khairy A Amber, Mitsuhiro Furuse, Vishwajit S Chowdhury
Exposure of chicks to a high ambient temperature (HT) has previously been shown to increase neuropeptide Y (NPY) mRNA expression in the brain. Furthermore, it was found that NPY has anti-stress functions in heat-exposed fasted chicks. The aim of the study was to reveal the role of central administration of NPY on thermotolerance ability and the induction of heat-shock protein (HSP) and NPY sub-receptors (NPYSRs) in fasted chicks with the contribution of plasma metabolite changes. Six- or seven-day-old chicks were centrally injected with 0 or 375 pmol of NPY and exposed to either HT (35 ± 1°C) or control thermoneutral temperature (CT: 30 ± 1°C) for 60 min while fasted...
December 2017: Physiological Reports
https://www.readbyqxmd.com/read/29204054/nuclear-heat-shock-protein-110-expression-is-associated-with-poor-prognosis-and-hyperthermo-chemotherapy-resistance-in-gastric-cancer-patients-with-peritoneal-metastasis
#17
Akiharu Kimura, Kyoichi Ogata, Bolag Altan, Takehiko Yokobori, Erito Mochiki, Mitsuhiro Yanai, Norimichi Kogure, Toru Yanoma, Masaki Suzuki, Tuya Bai, Hiroyuki Kuwano
AIM: To investigate the significance of heat shock protein 110 (HSP110) in gastric cancer (GC) patients with peritoneal metastasis undergoing hyperthermo-chemotherapy. METHODS: Primary GC patients (n = 14) with peritoneal metastasis or positive peritoneal lavage cytology who underwent distal or total gastrectomy between April 2000 and December 2011 were enrolled in this study. The patients underwent postoperative intraperitoneal hyperthermo-chemotherapy using a Thermotron RF-8 heating device two weeks after surgery...
November 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29203952/effect-of-intra-tumoral-magnetic-nanoparticle-hyperthermia-and-viral-nanoparticle-immunogenicity-on-primary-and-metastatic-cancer
#18
P Jack Hoopes, Courtney M Mazur, Bjorn Osterberg, Ailin Song, David J Gladstone, Nicole F Steinmetz, Frank A Veliz, Alicea A Bursey, Robert J Wagner, Steven N Fiering
Although there is long association of medical hyperthermia and immune stimulation, the relative lack of a quantifiable and reproducible effect has limited the utility and advancement of this relationship in preclinical/clinical cancer and non-cancer settings. Recent cancer-based immune findings (immune checkpoint modulators etc.) including improved mechanistic understanding and biological tools now make it possible to modify and exploit the immune system to benefit conventional cancer treatments such as radiation and hyperthermia...
January 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29203951/hypo-fractionated-radiation-magnetic-nanoparticle-hyperthermia-and-a-viral-immunotherapy-treatment-of-spontaneous-canine-cancer
#19
P Jack Hoopes, Karen L Moodie, Alicia A Petryk, James D Petryk, Shawntel Sechrist, David J Gladstone, Nicole F Steinmetz, Frank A Veliz, Alicea A Bursey, Robert J Wagner, Ashish Rajan, Danielle Dugat, Margaret Crary-Burney, Steven N Fiering
It has recently been shown that cancer treatments such as radiation and hyperthermia, which have conventionally been viewed to have modest immune based anti-cancer effects, may, if used appropriately stimulate a significant and potentially effective local and systemic anti-cancer immune effect (abscopal effect) and improved prognosis. Using eight spontaneous canine cancers (2 oral melanoma, 3 oral amelioblastomas and 1 carcinomas), we have shown that hypofractionated radiation (6 x 6 Gy) and/or magnetic nanoparticle hyperthermia (2 X 43°C / 45 minutes) and/or an immunogenic virus-like nanoparticle (VLP, 2 x 200 μg) are capable of delivering a highly effective cancer treatment that includes an immunogenic component...
January 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29203716/immune-tolerance-therapies-for-autoimmune-diseases-based-on-heat-shock-protein-t-cell-epitopes
#20
REVIEW
Willem van Eden
Experimental models of autoimmune diseases have revealed the disease protective role of heat shock proteins (HSPs). Both the administration of exogenous extracellular, mostly recombinant, HSP and the experimental co-induction of endogenous intracellular HSP in models have been shown to lead to production of disease protective regulatory T cells (Tregs). Similar to HSP taken up from extracellular bodily fluids, due to stress-related autophagy upregulated HSP also from intracellular sources is a major provider for the major histocompatibility class II (MHCII) ligandome; therefore, both extracellular and intracellular HSP can be prominent targets of Treg...
January 19, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
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