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https://www.readbyqxmd.com/read/28510312/the-midbrain-to-pons-ratio-distinguishes-progressive-supranuclear-palsy-from-non-fluent-primary-progressive-aphasias
#1
M Silsby, R Y Tweedie-Cullen, C R Murray, G M Halliday, J R Hodges, J R Burrell
BACKGROUND AND PURPOSE: To determine the clinical utility of the midbrain-to-pons (M/P) ratio as a clinical biomarker of progressive supranuclear palsy (PSP) in patients with non-fluent primary progressive aphasia syndromes. METHODS: Patients with PSP, progressive non-fluent aphasia (PNFA) and logopenic progressive aphasia (LPA) were recruited. Patients were diagnosed clinically, but pathological confirmation was available in a proportion of patients. Midbrain and pons areas were measured using Osirix Lite, a free DICOM viewer...
July 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28407521/genetic-or-pharmacological-activation-of-the-drosophila-pgc-1%C3%AE-ortholog-spargel-rescues-the-disease-phenotypes-of-genetic-models-of-parkinson-s-disease
#2
Chee-Hoe Ng, Adeline H Basil, Liting Hang, Royston Tan, Kian-Leong Goh, Sharon O'Neill, Xiaodong Zhang, Fengwei Yu, Kah-Leong Lim
Despite intensive research, the etiology of Parkinson's disease (PD) remains poorly understood and the disease remains incurable. However, compelling evidence gathered over decades of research strongly support a role for mitochondrial dysfunction in PD pathogenesis. Related to this, PGC-1α, a key regulator of mitochondrial biogenesis, has recently been proposed to be an attractive target for intervention in PD. Here, we showed that silencing of expression of the Drosophila PGC-1α ortholog spargel results in PD-related phenotypes in flies and also seem to negate the effects of AMPK activation, which we have previously demonstrated to be neuroprotective, that is, AMPK-mediated neuroprotection appears to require PGC-1α...
March 18, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28315292/hypoxic-culture-promotes-dopaminergic-neuronal-differentiation-of-nasal-olfactory-mucosa-mesenchymal-stem-cells-via-up-regulation-of-hypoxia-inducible-factor-1%C3%AE
#3
Yi Zhuo, Lei Wang, Lite Ge, Xuan Li, Ping Chen, Da Duan, Xiaohua Teng, Miao Jiang, Kai Liu, Ting Yuan, Pei Wu, Hao Wang, Yujia Deng, Huali Xie, Ying Xia, Ming Lu
<p><b>Background</b> Olfactory mucosa mesenchymal stem cells (OM-MSCs) display significant clonogenicactivity and may be easily propagated for Parkinson's disease therapies. Methods of inducing OM-MSCs to differentiate into dopaminergic (DAergic) neurons using olfactory ensheathing cells (OECs) is thus an attractive topic of research.</p><p><b>Methods</b> We designed a hypoxic-induction protocol to generate DAergic neurons from OM-MSCs using a physiological oxygen (O2) level of 3% and OEC-conditioned medium (HI group)...
March 17, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28078613/l-f001-a-multifunction-rock-inhibitor-prevents-6-ohda-induced-cell-death-through-activating-akt-gsk-3beta-and-nrf2-ho-1-signaling-pathway-in-pc12-cells-and-attenuates-mptp-induced-dopamine-neuron-toxicity-in-mice
#4
Liting Luo, Jingkao Chen, Dan Su, Meihui Chen, Bingling Luo, Rongbiao Pi, Lan Wang, Wei Shen, Rikang Wang
Amounting evidences demonstrated that Rho/Rho-associated kinase (ROCK) might be a novel target for the therapy of Parkinson's disease (PD). Recently, we synthesized L-F001 and revealed it was a potent ROCK inhibitor with multifunctional effects. Here we investigated the effects of L-F001 in PD models. We found that L-F001 potently attenuated 6-OHDA-induced cytotoxicity in PC12 cells and significantly decreased intracellular reactive oxygen species (ROS), prevented the 6-OHDA-induced decline of mitochondrial membrane potential and intracellular GSH levels...
February 2017: Neurochemical Research
https://www.readbyqxmd.com/read/27147525/nutraceuticals-in-parkinson-s-disease
#5
REVIEW
Liting Hang, Adeline Henry Basil, Kah-Leong Lim
Current pharmacological strategies for Parkinson's disease (PD), the most common neurological movement disorder worldwide, are predominantly symptom relieving and are often plagued with undesirable side effects after prolonged treatment. Despite this, they remain as the mainstay treatment for PD due to the lack of better alternatives. Nutraceuticals are compounds derived from natural food sources that have certain therapeutic value and the advent of which has opened doors to the use of alternative strategies to tackle neurodegenerative diseases such as PD...
September 2016: Neuromolecular Medicine
https://www.readbyqxmd.com/read/26793099/parkin-regulation-and-neurodegenerative-disorders
#6
REVIEW
Cheng-Wu Zhang, Liting Hang, Tso-Pang Yao, Kah-Leong Lim
Parkin is a unique, multifunctional ubiquitin ligase whose various roles in the cell, particularly in neurons, are widely thought to be protective. The pivotal role that Parkin plays in maintaining neuronal survival is underscored by our current recognition that Parkin dysfunction represents not only a predominant cause of familial parkinsonism but also a formal risk factor for the more common, sporadic form of Parkinson's disease (PD). Accordingly, keen research on Parkin over the past decade has led to an explosion of knowledge regarding its physiological roles and its relevance to PD...
2015: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/26121488/mitochondrial-dysfunction-and-parkinson-disease-a-parkin-ampk-alliance-in-neuroprotection
#7
REVIEW
Liting Hang, John Thundyil, Kah-Leong Lim
Although a subject of intense research, the etiology of Parkinson disease (PD) remains poorly understood. However, a wide range of studies conducted over the past few decades have collectively implicated aberrant mitochondrial homeostasis as a key contributor to the development of PD. Particularly strong support for this came from the recent demonstration that parkin, a familial PD-linked gene, is a critical regulator of mitochondrial quality control. Indeed, Parkin appears to be involved in all stages of the mitochondrial life cycle (i...
September 2015: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/25406035/effects-of-sevoflurane-on-leucine-rich-repeat-kinase-2-associated-drosophila-model-of-parkinson-s-disease
#8
Zhiming Shan, Song Cai, Tao Zhang, Liting Kuang, Qi Wang, Huanhuan Xiu, Jing Wen, Huaiyu Gu, Kangqing Xu
Patients with Parkinson's disease (PD) often require surgery, and therefore may receive inhalation anesthesia. However, it is currently unknown whether inhalation anesthetics affect the prognosis of the disease. Leucine‑rich repeat kinase 2 (LRRK2) genetic mutations are the most common cause of familial PD, contributing to ~39% of all cases in certain populations. The aim of the present study was to determine the effects of inhaled anesthetics on PD, by observing the influence of sevoflurane on a LRRK2‑associated Drosophila model of PD...
March 2015: Molecular Medicine Reports
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