Abstract：
:The continuous part of a hybrid (pulse-modulated) model of testosterone (Te) feedback regulation in the human male is extended with infinite-dimensional and nonlinear blocks, to obtain the dynamics that better agree with the hormone concentration profiles observed in clinical data. A linear least-squares based optimization algorithm is developed for the purpose of detecting impulses of gonadotropin-releasing hormone (GnRH) from measured concentration of luteinizing hormone (LH). The estimated impulse parameters are instrumental in evaluating the frequency and amplitude modulation functions parameterizing the pulse-modulated feedback. The proposed approach allows for the identification of all model parameters from the hormone concentrations of Te and LH. Simulation results of the complete estimated closed-loop system exhibiting similar to the clinical data behavior are provided.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Mattsson P,Medvedev Adoi
10.1007/978-3-319-10984-8_2subject
Has Abstractpub_date
2015-01-01 00:00:00pages
23-40eissn
0065-2598issn
2214-8019journal_volume
823pub_type
杂志文章abstract：:microRNAs (miRNAs) are small, noncoding RNA molecules that through imperfect base-pairing with complementary sequences of target mRNA molecules, typically cleave target mRNA, causing subsequent degradation or translation inhibition. Although an increasing number of studies have identified misregulated miRNAs in the ne...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-22671-2_6
更新日期：2015-01-01 00:00:00
abstract：:An overall view of the contractile process that has emerged from -temperature-studies on active muscle is outlined. In isometric muscle, a small rapid temperature-jump (T-jump) enhances an early, pre-phosphate release, step in the acto-myosin (crossbridge) ATPase cycle and induces a characteristic rise in force indica...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4419-6366-6_14
更新日期：2010-01-01 00:00:00
abstract：:Five human leukocyte long-term suspension cultures were investigated by means of cytochemical and cytogenetic methods. A striking resemblance in the morphology of these cells originating either from peripheral blood or from spleen of patients with or without hematological disorders was found. Lymphocytic origin of all...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-0731-1_15
更新日期：1975-01-01 00:00:00
abstract：:Anthropogenic sounds come in different forms, varying not only in amplitude and frequency spectrum but also in temporal structure. Although fish are sensitive to the temporal characteristics of sound, little is known about how their behavior is affected by anthropogenic sounds of different temporal patterns. We invest...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4939-2981-8_93
更新日期：2016-01-01 00:00:00
abstract：:Aquatic noise pollution is largely ignored by the lay public. How experts communicate this issue is critical to move public opinion. In 2010, the Cassa di Risparmio di Gorizia (CaRiGO) bank sponsored the Deaf as a Fish project that included local underwater noise monitoring, a boat census, a pamphlet for nonexperts, a...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4939-2981-8_123
更新日期：2016-01-01 00:00:00
abstract：:By use of an optical system, with which the beam of the first-order diffraction line of He-Ne laser light from a single frog skeletal muscle fiber was split by the wedge-shaped mirror to be focused on two photodiodes ( Haugen & Sten - Knudsen , 1976), small changes in sarcomere length (less than 1 A) could be recorded...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-4703-3_58
更新日期：1984-01-01 00:00:00
abstract：:To assess whether the dipeptide N-epsilon-(gamma-L-glutamyl)-L-lysine (glutamyl-lysine) can serve as a nutritional source of lysine, we compared the growth of mice fed (a) an amino acid diet in which lysine was replaced by six dietary levels of glutamyl-lysine; (b) wheat gluten diets fortified with lysine; (c) a wheat...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4899-2626-5_30
更新日期：1991-01-01 00:00:00
abstract：:The purpose of this study was to develop a non-dimensional approach towards the description of interaction between the three respiratory stimuli of hypoxia, hypercapnia and exercise and to use this approach to quantify the relative strengths of their interactions. Only a part of the study related to the overall intera...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-0-387-73693-8_43
更新日期：2008-01-01 00:00:00
abstract：:The activity of liver macrophages was evaluated using a magnetometric method after administration of different perfluorochemicals. Following treatment with perfluoroctylbromide a significant shorter time period of diminished macrophage activity was found compared with a mixture of perfluorodecalin and perfluorotriprop...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-2468-7_28
更新日期：1994-01-01 00:00:00
abstract：:The regulatory environment for cell- and tissue-based therapeutic products and gene therapy products is rapidly evolving and drug regulatory agencies are working towards establishing a risk-based system in the regulatory framework. Similarly in Singapore, a risk-based tiered approach has been applied whereby clinical ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-18618-4_11
更新日期：2015-01-01 00:00:00
abstract：:Matching oxygen consumption and supply represents a fundamental challenge to multicellular organisms. HIF-1 is a transcription complex which is emerging as a key mediator of oxygen homeostasis. HIF-1 controls the expression of many genes, including erythropoietin, angiogenic growth factors, glucose transporters and gl...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：
更新日期：2001-01-01 00:00:00
abstract：:The term cardiovascular diseases (CVD) refers to disorders of heart and blood vessels, and include coronary heart disease, cerebrovascular disease, peripheral vascular disease, and heart failure, among others. Atherosclerosis is a common background of these diseases. It is not infrequent that some acute diseases, such...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-030-21735-8_5
更新日期：2019-01-01 00:00:00
abstract：:The gastrointestinal (GI) tract is a dynamic environment and therefore the stability of the commensal community, or microbiota, is under constant challenge. Microscopic observations have revealed that the majority of bacteria present in the GI tract are not detected using standard culturing techniques, however with th...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-09550-9_2
更新日期：2008-01-01 00:00:00
abstract：:Recent advances in near-infrared spectroscopy (NIRS) allow measurements of absolute tissue oxygen saturation (TOI) using spatially resolved spectroscopy (SRS), while enabling better depth sensitivity. However concerns remain regarding the relative contribution of the extracranial circulation to the cerebral NIRS TOI s...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-0-387-74911-2_43
更新日期：2008-01-01 00:00:00
abstract：:Chronic alcohol misuse and progressed nonalcoholic fatty liver disease (NAFLD) due to the metabolic syndrome and resulting to nonalcoholic steatohepatitis (NASH) are prime causes of hepatocellular carcinoma (HCC) in Western industrialized countries. The incidence of HCC in NASH-cirrhosis is lower than that of HCC occu...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-98788-0_4
更新日期：2018-01-01 00:00:00
abstract：:The purpose of this study was to investigate the antioxidant activities of short-neck clam water extract (SNC-WE) enriched in taurine. In the present study, the half-maximal inhibitory concentration (IC50) values of the SNC-WE for DPPH, superoxide, and alkyl radical scavenging activities determined by an electron spin...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-94-024-1079-2_82
更新日期：2017-01-01 00:00:00
abstract：:The human Usher syndrome (USH) is the most frequent cause of combined hereditary deaf-blindness. USH is genetically and clinically heterogeneous: 15 chromosomal loci assigned to 3 clinical types, USH1-3. All USH1 and 2 proteins are organized into protein networks by the scaffold proteins harmonin (USH1C), whirlin (USH...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-3209-8_67
更新日期：2014-01-01 00:00:00
abstract：:The role of CD4+ T cells in altering the activity of cytotoxic T lymphocytes (CTL) during infection of the central nervous system (CNS) by the neuroptropic JHMV strain of mouse hepatitis virus was examined. Adoptive transfer of in vitro activated CTL into CD4-depleted and control recipients showed that CTL were not ef...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-5331-1_53
更新日期：1998-01-01 00:00:00
abstract：:The effects of ANTU-induced acute pulmonary capillary injury on lung and serum ACE functional activity and the specific accumulation of radio-labelled anti-ACE in lung were explored. Rats were injected either with ANTU or the solvent and sacrificed at various intervals up to one week after injection. All ANTU-injected...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5143-6_67
更新日期：1986-01-01 00:00:00
abstract：:Retrovirus assembly results from the ability of a single gene product, the gag polyprotein precursor, to coalesce into a spherical particle capable of release from the cell. In conjunction with this primary process of capsid formation additional viral gene products such as the replicative enzymes and envelope glycopro...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4615-5331-1_43
更新日期：1998-01-01 00:00:00
abstract：:Ethanol has been shown to induce a shift in catecholamine metabolism peripherally from normally oxidative pathways to reductive pathways. The mechanisms of this effect may result from competitive inhibition of aldehyde dehydrogenase by acetaldehyde. The shift in metabolism cannot be found in brain and alterations in c...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4899-5181-6_33
更新日期：1977-01-01 00:00:00
abstract：:Seen from the perspective of funding organizations, investors, and the general public, the productivity of our world-wide biomedical research enterprise is declining despite increased investment. This opinion piece suggests a cause and a solution. The cause is the enormous complexity of human biology and pathophysiolo...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4419-7210-1_31
更新日期：2012-01-01 00:00:00
abstract：:Transcutaneous PO2 measurements at 37 degrees C can recognize and quantify diabetic microangiopathy if suitable stimulation tests are used. The following parameters are of practical importance: resting PO2, postocclusive PO2, rubefacient-induced PO2 and 45 degrees C heating PO2. Patients with diabetic microangiopathy ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4613-1927-6_15
更新日期：1987-01-01 00:00:00
abstract：:In this chapter, we introduce a relatively new, emerging method for molecular neuromodulation-bioluminescence-optogenetics. Bioluminescence-optogenetics is mediated by luminopsin fusion proteins-light-sensing opsins fused to light-emitting luciferases. We describe their structures and working mechanisms and discuss th...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-15-8763-4_17
更新日期：2021-01-01 00:00:00
abstract：:Store-operated Ca2+ entry fulfills a crucial role in controlling Ca2+ signals in almost all cells. The Ca2+-sensing stromal interaction molecule (STIM) proteins in the endoplasmic reticulum (ER) undergo complex conformational changes in response to depleted ER luminal Ca2+, allowing them to unfold and become trapped i...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-57732-6_5
更新日期：2017-01-01 00:00:00
abstract：:Intraperitoneal administration of polymeric nanoparticles to deliver DNA encoding suicide genes holds much promise as an effective therapy for advanced epithelial ovarian cancer. Poly(beta-amino ester)s, a class of cationic, biodegradable polymers complex to DNA to form nanoparticles that deliver DNA to cells in ovari...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-0-387-68969-2_17
更新日期：2008-01-01 00:00:00
abstract：:Selection of high-producing lead and backup cell lines with high-fidelity primary structure is a major goal of cell line development of protein therapeutics. Conventional techniques for sequence variant analysis, such as mass spectrometry (MS) and next-generation sequencing (NGS) have limitations on the sample number ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-3-030-15950-4_12
更新日期：2019-01-01 00:00:00
abstract：:A Protein C (PC) biosensor can be used to diagnose PC deficiency, to monitor the PC level in the blood of PC deficient patients, and to measure the PC concentration in other PC-containing samples, such as PC producing animal cell culture broth or transgenic animal milk. A fully functional biosensor requires extremely ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-5865-1_56
更新日期：1997-01-01 00:00:00
abstract：:This chapter discusses the emerging field of vector-mediated antibody gene transfer as an alternative vaccine for infectious disease, with a specific focus on HIV. However, this methodology need not be confined to HIV-1; the general strategy of vector-mediated antibody gene transfer can be applied to other difficult v...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4939-2432-5_8
更新日期：2015-01-01 00:00:00
abstract：:An acute reduction in oxygen delivery to a tissue is associated with metabolic changes aimed at maintaining ATP homeostasis. However, given the complexity of the human bioenergetic system, it is difficult to determine quantitatively how cellular metabolic processes interact to maintain ATP homeostasis during stress (e...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-0075-9_52
更新日期：2003-01-01 00:00:00
