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Beyond being the most important natural compound source, actinomycetes are the origin of up to two-thirds of all clinically used antibiotics. Currently, new antimicrobials are urgently needed, as infections caused by antibiotic-resistant pathogens are on the rise. In the identification of new antibiotics, many scientists are currently investigating biosynthetic aspects of antibiotic production in actinomycetes. Since the emergence of next-generation sequencing technologies, the field of antibiotics research has experienced a remarkable revival. These bacteria have the potential to produce more antibiotics than previously thought possible. Some antibiotics are produced in standard media, while others require the presence of a specific signaling molecule in the medium. Others, however, are only produced when the native regulation of the biosynthesis gene cluster is overruled. This book covers topics in the field of antibiotic-producing actinomycetes. The following tops are addressed: - Approaches to access novel antibiotic producers for novel natural compounds - Omics and genome mining approaches for the discovery of novel natural compounds - Analyses and genetic engineering of antibiotic biosynthesis - Regulation of the secondary metabolism in actinomycetes

Research & information: general --- Biology, life sciences --- Streptomyces --- biogeography --- comparative genomics --- diversification --- secondary metabolite biosynthetic gene clusters --- SMGC --- natural products --- streptomyces --- rishirilide --- biosynthesis --- polyketides --- polynucleotide phosphorylase --- ribonuclease --- regulation --- promoter --- RNA decay --- polyadenylation --- (p)ppGpp --- antibiotic --- antibiotics --- geomicrobiology --- Illumina sequencing --- microbiome diversity --- Actinobacteria --- Cave microbiology --- secondary metabolite --- rare Actinobacteria --- Amycolatopsis --- unculturability --- siderophore --- glycopeptide antibiotics --- dbv cluster --- regulatory genes --- StrR --- LAL --- LuxR solo --- dalbavancin --- A40926 --- Streptomyces lividans --- secretion pathways --- secretory proteins --- signal peptides --- actinomycetes --- teicoplanin --- van resistance genes --- Streptomyces tsukubaensis --- tacrolimus --- FK506 --- omics --- screening --- secondary metabolism --- differentiation --- elicitors --- morphology --- liquid cultures --- metagenomics --- rare actinomycetes --- dereplication --- metabolomics --- genome mining --- secondary metabolites --- novel compounds --- physicochemical screening --- physical and chemical properties --- structural diversity --- biological activity --- Actinoallomurus --- antibiotics polyethers --- lysolipin --- minimal PKS II --- cyclases --- benz[a]naphthacene quinone --- tridecaketide --- aromatic polyketide --- pentacyclic angular polyphenol --- extended polyketide chain --- actinobacteria --- β-lactamase --- resistance --- β-lactamase inhibitor --- polyketide synthases --- acyltransferases --- engineering --- new bioactive compounds --- symbiosis --- drug discovery --- chemical ecology --- culture-based approaches --- strain --- specialized metabolites --- biosynthetic gene cluster --- n/a

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Beyond being the most important natural compound source, actinomycetes are the origin of up to two-thirds of all clinically used antibiotics. Currently, new antimicrobials are urgently needed, as infections caused by antibiotic-resistant pathogens are on the rise. In the identification of new antibiotics, many scientists are currently investigating biosynthetic aspects of antibiotic production in actinomycetes. Since the emergence of next-generation sequencing technologies, the field of antibiotics research has experienced a remarkable revival. These bacteria have the potential to produce more antibiotics than previously thought possible. Some antibiotics are produced in standard media, while others require the presence of a specific signaling molecule in the medium. Others, however, are only produced when the native regulation of the biosynthesis gene cluster is overruled. This book covers topics in the field of antibiotic-producing actinomycetes. The following tops are addressed: - Approaches to access novel antibiotic producers for novel natural compounds - Omics and genome mining approaches for the discovery of novel natural compounds - Analyses and genetic engineering of antibiotic biosynthesis - Regulation of the secondary metabolism in actinomycetes

Research & information: general --- Biology, life sciences --- Streptomyces --- biogeography --- comparative genomics --- diversification --- secondary metabolite biosynthetic gene clusters --- SMGC --- natural products --- streptomyces --- rishirilide --- biosynthesis --- polyketides --- polynucleotide phosphorylase --- ribonuclease --- regulation --- promoter --- RNA decay --- polyadenylation --- (p)ppGpp --- antibiotic --- antibiotics --- geomicrobiology --- Illumina sequencing --- microbiome diversity --- Actinobacteria --- Cave microbiology --- secondary metabolite --- rare Actinobacteria --- Amycolatopsis --- unculturability --- siderophore --- glycopeptide antibiotics --- dbv cluster --- regulatory genes --- StrR --- LAL --- LuxR solo --- dalbavancin --- A40926 --- Streptomyces lividans --- secretion pathways --- secretory proteins --- signal peptides --- actinomycetes --- teicoplanin --- van resistance genes --- Streptomyces tsukubaensis --- tacrolimus --- FK506 --- omics --- screening --- secondary metabolism --- differentiation --- elicitors --- morphology --- liquid cultures --- metagenomics --- rare actinomycetes --- dereplication --- metabolomics --- genome mining --- secondary metabolites --- novel compounds --- physicochemical screening --- physical and chemical properties --- structural diversity --- biological activity --- Actinoallomurus --- antibiotics polyethers --- lysolipin --- minimal PKS II --- cyclases --- benz[a]naphthacene quinone --- tridecaketide --- aromatic polyketide --- pentacyclic angular polyphenol --- extended polyketide chain --- actinobacteria --- β-lactamase --- resistance --- β-lactamase inhibitor --- polyketide synthases --- acyltransferases --- engineering --- new bioactive compounds --- symbiosis --- drug discovery --- chemical ecology --- culture-based approaches --- strain --- specialized metabolites --- biosynthetic gene cluster

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Hereditary hemorrhagic telangiectasia (HHT) is an inherited disease that affects the blood vessels, and is characterized by direct connections between arteries and veins with no intervening capillaries. These abnormal vessels may appear in the skin as tiny red dilated blood vessels in the mouth, lips, fingers and toes. The presence of these vascular lesions in the mucosa can lead to spontaneous and recurrent nose bleeding, typically beginning in mid-childhood, and this is the most common clinical manifestation of HHT, occurring in over 90% of patients. Gastrointestinal bleeding, derived from mucocutaneous vascular lesions, affects approximately 25% of patients, almost always presenting after the age of 50. Chronic nasal and gastrointestinal bleeding can cause iron-deficiency anemia, and current therapeutic strategies are trying to minimize iron and blood transfusions. HHT patients also present large vascular lesions, known as arteriovenous malformations, that occur in internal organs like lungs, liver, and brain, and may result in life-threatening complications often related to the shunting of blood. This book not only highlights the current knowledge regarding diagnosis and treatment of HHT, but also the newest insights in the molecular basis of HHT, the understanding of which is essential for the development of new medicines or therapeutic strategies.

hereditary hemorrhagic telangiectasia --- rare diseases --- telangiectasis --- transforming growth factor-beta (TGF-β) --- Smad pathway --- gastrointestinal bleeding --- epistaxis --- nosebleeds --- tacrolimus --- nasal ointment --- genetic disease --- rare disease --- hereditary hemorrhagic telangiectasia (HHT) --- telangiectases --- mechanical damage --- sun-induced trauma --- vascular malformations --- Endoglin --- activin-receptor-like kinase 1 --- Hereditary Hemorrhagic Telangiectasia --- antithrombotic therapy --- anticoagulants --- antiplatelets --- bleeding --- safety --- HHT --- ALK1 --- endoglin --- raloxifene --- bazedoxifene --- tranexamic acid --- propranolol --- FK506 --- etamsylate --- N-acetylcysteine --- pulmonary arteriovenous malformations --- transcatheter embolotherapy --- screening --- guidelines --- Hereditary hemorrhagic telangiectasia --- pediatrics --- genotype–phenotype correlation --- arteriovenous malformation --- ENG --- ACVRL1 --- SMAD4 --- microRNA --- biomarker --- plasma --- arteriovenous malformations (AVMs) --- angiogenesis --- activin receptor-like kinase 1 (ALK1) --- transforming growth factor beta (TGF-β) --- bone morphogenetic protein (BMP) --- propranolol gel --- epistaxis severity score --- nasal endoscopy --- antiangiogenic properties --- non-coding RNAs --- microRNAs --- long non-coding RNAs --- biomarkers --- endothelial cells --- hereditary hemorrhagic telangiectasia (HHT), second-hit --- arteriovenous malformation (AVM) --- Smad4 --- inflammation --- shear stress --- vascular injury --- somatic mutation --- cell adhesion --- vascular endothelial growth factor (VEGF) --- telangiectasia --- hereditary hemorrhagic --- survival --- life expectancy --- pulmonary arteriovenous malformation --- contrast enhanced magnetic resonance angiography --- liver --- MRI --- ultrasound --- AVM --- bevacizumab --- Osler–Weber–Rendu --- hereditary hemorrhagic telangiectasia/HHT/osler’s disease --- cerebral ischemic lesions --- catheter based embolization therapy

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Advances in immunosuppression and kidney transplant techniques have led to significant improvements in the short-term survival of the renal allograft. Long-term graft survival, however, has relatively lagged behind and has now become one of the main problems in kidney transplantation. In this Special Issue, we discuss the recent research developments in kidney transplants that may affect long-term allografts, as well as the survival of the patient. The latest developments in living kidney donation are also explored.

Medicine --- malondialdehyde --- oxidative stress --- new-onset diabetes --- renal transplantation --- BK virus --- BK virus nephropathy --- kidney allograft --- transplantation --- Alport syndrome --- children --- autosomal dominant polycystic kidney disease --- epidemiology --- hospitalization --- kidney transplantation --- subarachnoid hemorrhage --- malignancy --- post-transplant malignancy --- renal cell carcinoma --- meta-analysis --- systematic reviews --- tacrolimus --- C/D-ratio --- pharmacokinetics --- opportunistic infection --- allograft survival --- urological complications --- ureteric stent --- urinary tract infection --- timing of removal --- living donor --- ethnicity --- age --- obesity --- genetic relationship donor/recipient --- atypical hemolytic uremic syndrome --- eculizumab --- glucose intolerance --- insulin secretion --- insulin resistance --- oral glucose tolerance test --- healthy subject --- hyperchloremia --- kidney graft dysfunction --- living donor kidney transplantation --- Uropathogenic E. coli --- UPEC --- phylogeny --- genomics --- antibiotic resistance --- virulence traits --- night-time renal transplantation --- graft survival --- patient survival/outcome --- surgical complications --- acute rejection --- lymphocyte --- CD45RC --- Belatacept --- cardiovascular high risk --- outcome --- machine perfusion --- organ preservation --- temperature --- hypothermic --- normothermic --- transplant --- proton-pump inhibitors --- iron --- iron deficiency --- polyomavirus --- BKV --- kidney --- glomerulus --- BKVAN --- nephropathy --- fluid management --- delayed graft function --- goal-directed fluid therapy --- calcineurin inhibitor nephrotoxcity --- C/D ratio --- tacrolimus metabolism --- ADPKD --- native nephrectomy --- patient outcome --- perioperative complications --- epidermal growth factor --- creatinine --- graft failure --- renal transplantation. --- new onset diabetes after renal transplantation --- single nucleotide polymorphisms --- n/a --- urinary biomarkers --- α-GST --- π-GST --- nephrotoxicity --- urinary excretion of N1-methylnicotinamide --- mortality --- niacin status --- dietary intake --- tryptophan --- vitamin B3 --- Kidney transplant --- vitamin C --- cancer mortality --- oxidative stress. --- mycophenolic acid --- immunosuppression --- plasmapheresis --- oxalate --- hyperoxaluria --- kidney transplant recipients --- post-transplantation diabetes mellitus --- all-cause mortality --- cardiovascular mortality --- infectious mortality --- magnesium --- hypomagnesaemia --- cancer --- kidney transplant --- survival --- living kidney donation --- living-donor kidney transplantation --- beliefs --- inequity --- ischemia reperfusion injury --- innate immune system --- adaptive immune system --- apoptosis --- necrosis --- hypoxic inducible factor --- endothelial dysfunction --- proton pump inhibitor --- transplant rejection --- GFR --- insulin-like growth factor 1 --- growth hormone --- muscle mass --- patient survival --- physical activity --- renal transplant recipients --- kidney transplant (KT) --- donor-specific antibodies (DSA) --- C3d-binding assay --- antibody-mediated rejection (AMR) --- arsenic --- diet --- fish consumption --- post-transplant diabetes mellitus --- N1-methyl-2-pyridone-5-carboxamide --- N1-methylnicotinamide --- urinary excretion --- kidney function --- biomarker --- branched chain amino acids --- posttransplant diarrhea --- methanogenesis --- Methanosphaera stadtmanae --- mucins --- sulfate-reducing bacteria --- acute humoral rejection --- first-line therapy --- outcomes --- proteasome inhibitor --- renal transplant --- transplant recipients --- calcineurin inhibitors --- FK506 --- pharmacokinetic --- fast tacrolimus metabolizers

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Advances in immunosuppression and kidney transplant techniques have led to significant improvements in the short-term survival of the renal allograft. Long-term graft survival, however, has relatively lagged behind and has now become one of the main problems in kidney transplantation. In this Special Issue, we discuss the recent research developments in kidney transplants that may affect long-term allografts, as well as the survival of the patient. The latest developments in living kidney donation are also explored.

malondialdehyde --- oxidative stress --- new-onset diabetes --- renal transplantation --- BK virus --- BK virus nephropathy --- kidney allograft --- transplantation --- Alport syndrome --- children --- autosomal dominant polycystic kidney disease --- epidemiology --- hospitalization --- kidney transplantation --- subarachnoid hemorrhage --- malignancy --- post-transplant malignancy --- renal cell carcinoma --- meta-analysis --- systematic reviews --- tacrolimus --- C/D-ratio --- pharmacokinetics --- opportunistic infection --- allograft survival --- urological complications --- ureteric stent --- urinary tract infection --- timing of removal --- living donor --- ethnicity --- age --- obesity --- genetic relationship donor/recipient --- atypical hemolytic uremic syndrome --- eculizumab --- glucose intolerance --- insulin secretion --- insulin resistance --- oral glucose tolerance test --- healthy subject --- hyperchloremia --- kidney graft dysfunction --- living donor kidney transplantation --- Uropathogenic E. coli --- UPEC --- phylogeny --- genomics --- antibiotic resistance --- virulence traits --- night-time renal transplantation --- graft survival --- patient survival/outcome --- surgical complications --- acute rejection --- lymphocyte --- CD45RC --- Belatacept --- cardiovascular high risk --- outcome --- machine perfusion --- organ preservation --- temperature --- hypothermic --- normothermic --- transplant --- proton-pump inhibitors --- iron --- iron deficiency --- polyomavirus --- BKV --- kidney --- glomerulus --- BKVAN --- nephropathy --- fluid management --- delayed graft function --- goal-directed fluid therapy --- calcineurin inhibitor nephrotoxcity --- C/D ratio --- tacrolimus metabolism --- ADPKD --- native nephrectomy --- patient outcome --- perioperative complications --- epidermal growth factor --- creatinine --- graft failure --- renal transplantation. --- new onset diabetes after renal transplantation --- single nucleotide polymorphisms --- n/a --- urinary biomarkers --- α-GST --- π-GST --- nephrotoxicity --- urinary excretion of N1-methylnicotinamide --- mortality --- niacin status --- dietary intake --- tryptophan --- vitamin B3 --- Kidney transplant --- vitamin C --- cancer mortality --- oxidative stress. --- mycophenolic acid --- immunosuppression --- plasmapheresis --- oxalate --- hyperoxaluria --- kidney transplant recipients --- post-transplantation diabetes mellitus --- all-cause mortality --- cardiovascular mortality --- infectious mortality --- magnesium --- hypomagnesaemia --- cancer --- kidney transplant --- survival --- living kidney donation --- living-donor kidney transplantation --- beliefs --- inequity --- ischemia reperfusion injury --- innate immune system --- adaptive immune system --- apoptosis --- necrosis --- hypoxic inducible factor --- endothelial dysfunction --- proton pump inhibitor --- transplant rejection --- GFR --- insulin-like growth factor 1 --- growth hormone --- muscle mass --- patient survival --- physical activity --- renal transplant recipients --- kidney transplant (KT) --- donor-specific antibodies (DSA) --- C3d-binding assay --- antibody-mediated rejection (AMR) --- arsenic --- diet --- fish consumption --- post-transplant diabetes mellitus --- N1-methyl-2-pyridone-5-carboxamide --- N1-methylnicotinamide --- urinary excretion --- kidney function --- biomarker --- branched chain amino acids --- posttransplant diarrhea --- methanogenesis --- Methanosphaera stadtmanae --- mucins --- sulfate-reducing bacteria --- acute humoral rejection --- first-line therapy --- outcomes --- proteasome inhibitor --- renal transplant --- transplant recipients --- calcineurin inhibitors --- FK506 --- pharmacokinetic --- fast tacrolimus metabolizers