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621.
622.
Andrea Schievano Barbara Scaglia Giuliana DImporzano Luca Malagutti Annalisa Gozzi Fabrizio Adani 《Bioresource technology》2009,100(23):5777-5782
This study presents an upgrading of the mathematical models to predict anaerobic biogasification potential (ABP) through quick laboratory analyses that have been presented in an earlier study. The aim is to widen the applicability of the models to heterogeneous organic substrates and to improve their reliability through a deeper statistical approach.Three multiple-step linear regressions were obtained using biomass oxygen demand in 20 h (OD20) plus the volatile solids content (VS) of 23 new samples of heterogeneous organic matrices, of 46 samples presented in the earlier work and of the data set comprising all the 69 samples. The two variables chosen were found to be suitable for very heterogeneous materials. To judge the prediction quality, a validation procedure was performed with 12 new samples using model efficiency indexes. The proposed model had good prediction ability for a large variety of organic substrates, and allows the calculation of the ABP value within only 2-day’s laboratory work instead of the 60–90 days required to obtain ABP by anaerobic test. 相似文献
623.
Emanuela Senatore Francesco Chiuso Laura Rinaldi Daniela Intartaglia Rossella Delle Donne Emilia Pedone Bruno Catalanotti Luciano Pirone Bianca Fiorillo Federica Moraca Giuliana Giamundo Giovanni Scala Andrea Raffeiner Omar TorresQuesada Eduard Stefan Marcel Kwiatkowski Alienke van Pijkeren Manuela Morleo Brunella Franco Corrado Garbi Ivan Conte Antonio Feliciello 《The EMBO journal》2021,40(10)
The primary cilium is a microtubule‐based sensory organelle that dynamically links signalling pathways to cell differentiation, growth, and development. Genetic defects of primary cilia are responsible for genetic disorders known as ciliopathies. Orofacial digital type I syndrome (OFDI) is an X‐linked congenital ciliopathy caused by mutations in the OFD1 gene and characterized by malformations of the face, oral cavity, digits and, in the majority of cases, polycystic kidney disease. OFD1 plays a key role in cilium biogenesis. However, the impact of signalling pathways and the role of the ubiquitin‐proteasome system (UPS) in the control of OFD1 stability remain unknown. Here, we identify a novel complex assembled at centrosomes by TBC1D31, including the E3 ubiquitin ligase praja2, protein kinase A (PKA), and OFD1. We show that TBC1D31 is essential for ciliogenesis. Mechanistically, upon G‐protein‐coupled receptor (GPCR)‐cAMP stimulation, PKA phosphorylates OFD1 at ser735, thus promoting OFD1 proteolysis through the praja2‐UPS circuitry. This pathway is essential for ciliogenesis. In addition, a non‐phosphorylatable OFD1 mutant dramatically affects cilium morphology and dynamics. Consistent with a role of the TBC1D31/praja2/OFD1 axis in ciliogenesis, alteration of this molecular network impairs ciliogenesis in vivo in Medaka fish, resulting in developmental defects. Our findings reveal a multifunctional transduction unit at the centrosome that links GPCR signalling to ubiquitylation and proteolysis of the ciliopathy protein OFD1, with important implications on cilium biology and development. Derangement of this control mechanism may underpin human genetic disorders. 相似文献
624.
Albanese Valeria Kuan Michela Accorsi Pier Attilio Berardi Roberta Marliani Giovanna 《Primates; journal of primatology》2021,62(4):585-593
Primates - Long-tailed macaques are highly social primates that are commonly used in biomedical research as animal models. The aim of this study was to evaluate the effects of different kinds of... 相似文献
625.
Ana Cláudia Pedreira de Almeida Luciana Matos Alves Pinto Giuliana Piovesan Alves Lígia Nunes de Morais Ribeiro Maria Helena Andrade Santana Cíntia Maria Saia Cereda 《Journal of liposome research》2019,29(1):66-72
This study describes the encapsulation of the local anaesthetic lidocaine (LDC) in large unilamellar liposomes (LUV) prepared in a scalable procedure, with hydrogenated soybean phosphatidylcholine, cholesterol and mannitol. Structural properties of the liposomes were assessed by dynamic light scattering, nanoparticle tracking analysis and transmission electron microscopy. A modified, two-compartment Franz-cell system was used to evaluate the release kinetics of LDC from the liposomes. The in vivo anaesthetic effect of liposomal LDC 2% (LUVLDC) was compared to LDC 2% solution without (LDCPLAIN) or with the vasoconstrictor epinephrine (1:100 000) (LDCVASO), in rat infraorbital nerve blockade model. The structural characterization revealed liposomes with spherical shape, average size distribution of 250?nm and low polydispersity even after LDC incorporation. Zeta potential laid around –30?mV and the number of suspended liposomal particles was in the range of 1012 vesicles/mL. Also the addition of cryoprotectant (mannitol) did not provoke structural changes in liposomes properties. In vitro release profile of LDC from LUV fits well with a biexponential model, in which the LDC encapsulated (EE%?=?24%) was responsible for an increase of 67% in the release time in relation to LDCPLAIN (p?<?0.05). Also, the liposomal formulation prolonged the sensorial nervous blockade duration (~70?min), in comparison with LDCPLAIN (45?min), but less than LDCVASO (130?min). In this context, this study showed that the liposomal formulations prepared by scalable procedure were suitable to promote longer and safer buccal anaesthesia, avoiding side effects of the use of vasoconstrictors. 相似文献
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Changfu Yao Stephanie A. Bora Tanyalak Parimon Tanzira Zaman Oren A. Friedman Joseph A. Palatinus Nirmala S. Surapaneni Yuri P. Matusov Giuliana Cerro Chiang Alexander G. Kassar Nayan Patel Chelsi E.R. Green Adam W. Aziz Harshpreet Suri Jo Suda Andres A. Lopez Gislâine A. Martins Barry R. Stripp Peter Chen 《Cell reports》2021,34(1):108590