Klaus Heese 교수

Inflammatory processes involving reactive microglia, e.g., those associated with beta-amyloid containing neuritic and core plaques in Alzheimer's disease, appear to contribute to neuronal degeneration in the CNS. The fact that increased nerve growth factor (NGF) protein levels were found throughout brains of Alzheimer's disease patients led us to investigate neurotrophin synthesis in a human microglial cell line showing typical properties of human microglial cells, including expression of neurot

Microglia/brain macrophages activated in response to injury, infection, or inflammation of the central nervous system (CNS) mediate both neurotoxic and neurotrophic activities. Although the cytotoxic effects of microglia have been analyzed in detail, little is known about the signaling pathways involved in microglial neurotrophin expression. Using purified rat microglial cell cultures, the effects of inflammatory agents such as lipopolysaccharide (LPS) on microglial nerve growth factor (NGF) exp

The protein family of the neurotrophins (NTs) comprises structurally and functionally related molecules such as nerve growth factor (NGF) which influences the proliferation, differentiation, survival and death of neuronal cells. In addition to their established functions for cell survival, NTs also mediate higher brain activities such as learning and memory. Changes in NT expression levels have thus been implicated in neurological diseases such as Alzheimer's disease (AD), an age-related neurode

Alzheimer's disease (AD) is an age-related neurodegenerative disorder that is characterized by a progressive loss in memory and deterioration of the higher cognitive functions. The brain of an individual with AD exhibits extracellular senile plaques of aggregated amyloid-beta-peptide (Abeta), intracellular neurofibrillary tangles (NFTs) that consist of hyperphosphorylated tau protein (P-tau) and a profound loss of basal forebrain cholinergic neurons that innervate the hippocampus and the neocort

An increased need by the green industry for enzymes that can be exploited for eco-friendly industrial applications led us to isolate and identify a unique protease obtained from a proteolytic <i>Bacillus megaterium</i>-TK1 strain from a seawater source. The extracellular thermostable serine protease was processed by multiple chromatography steps. The isolated protease displayed a relative molecular weight (MW) of 33 kDa (confirmed by zymography), optimal enzyme performance at pH 8.0, and maximum

While various methods exist for synthesizing silver nanoparticles (AgNPs), green synthesis has emerged as a promising approach due to its affordability, sustainability, and suitability for biomedical purposes. However, green synthesis is time-consuming, necessitating the development of efficient and cost-effective techniques to minimize reaction time. Consequently, researchers have turned their attention to photo-driven processes. In this study, we present the photoinduced bioreduction of silver

Since aging-related diseases, including dementia, represent major public health threats to our society, physician-scientists must develop innovative, interdisciplinary strategies to open new avenues for development of alternative therapies. One such novel approach may lie in traditional Chinese medicine (TCM). <i>Gastrodia elata</i> Blume (<i>G. elata</i>, tianma) is a TCM frequently used for treatment of cerebrocardiovascular diseases (CCVDs). Recent studies of <i>G. elata-</i>based treatment m

Neuronal regeneration and axonal re-growth in the injured mammalian central nervous system remains an unsolved field. To date, three myelin-associated proteins [Nogo or reticulon 4 (RTN4), myelin-associated glycoprotein (MAG) and oligodendrocyte myelin glycoprotein (OMG)] are known to inhibit axonal regeneration via activation of the neuronal glycosylphosphatidylinositol-anchored Nogo receptor [NgR, together with p75 neurotrophin receptor (p75NTR) and Lingo-1]. In the present study we describe t

The biogenic synthesis of silver nanoparticles (AgNPs) has a wide range of applications in the pharmaceutical industry. Here, we synthesized AgNPs using the aqueous flower extract of <i>Bauhinia tomentosa</i> Linn. Formation of AgNPs was observed using ultraviolet-visible light spectrophotometry at different time intervals. Maximum absorption was observed after 4 h at 420 nm due to the reduction of Ag⁺ to Ag⁰. The stabilizing activity of functional groups was identified by

Active cell death ('apoptosis' or 'programmed cell death') is essential in the development and homeostasis of multicellular organisms and abnormal inhibition of apoptosis is an indicator of cancer and autoimmune diseases, whereas excessive cell death might be implicated in neurodegenerative disorders such as Alzheimer's disease (AD). Using bioinformatics-, Western-blotting-, yeast-two-hybrid-system-, polymerase chain reaction (PCR)-, and fluorescence microscopy-analyses, we demonstrate here that