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The andropause and memory loss: is there a link between androgen decline and dementia in the aging male?

Asian Journal of Andrology 2001年第3期3卷 169-174页

作者： Robert S.Tan Shou-Jin Pu Geriatric Medicine Fellowship Program University of Texas Houston United StatesGeriatric Medicine Fellowship Program University of Texas Houston United States

Studies demonstrate a decline in androgens with age and this results in the andropause. The objective of this paperis to review the literature on hormonal changes that occur in the aging males and determine if there are associations be-tween decreased testosterone, dehydroepiandrosterone (DHEA) and decreased cognitive function. Trials of androgen re-placement and its impact on cognitive function will also be analyzed. Method of analysis will be by a thorough searchof articles on MEDLINE, the Internet and major abstract databases. Results of the author's own research in 302 men ofthe association of memory loss as a symptom in the andropause will be presented. In addition, the authors open trial oftestosterone replacement in hypogonadic men with Alzheimer's disease will also be presented. The results of the author'strial will be compared with other investigators. High endogenous testosterone level predicted better performance on visu-al spatial tests in several studies, but not in all studies. Likewise, testosterone replacement in hypogonadic patients im-proved cognitive functions in some but not all studies. Testosterone has also been shown to improve cognitive functionin eugonadal men. Several studies have shown that declines in DHEA may contribute to Alzheimer's disease and the re-sults of double blind studies with DHEA replacement and its effect on cognition will also be presented. In summary,there is still no consensus that androgen replacement is beneficial in cognitive decline but this option may prove promis-ing in some patients. (Asian J Androl 2001 Sep; 3: 169-174)

关键词： andropause memory loss androgens testosterone aging dementia

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Stem cell therapy for Alzheimer’s disease:An overview of experimental models and reality

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Animal Models and Experimental Medicine 2022年第1期5卷 15-26页

作者： Chuan Qin Kewei Wang Ling Zhang Lin Bai Institute of Laboratory Animal Sciences Chinese Academy of Medical Sciences(CAMS)Comparative Medicine CenterPeking Union Medical College(PUMC)NHC Key Laboratory of Human Disease Comparative MedicineKey Laboratory of Human Diseases Animal ModelBeijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases BeijingBeijingChina

Alzheimer's disease(AD)is a neurodegenerative disorder.The pathology of AD is characterized by extracellular amyloid beta(Aβ)plaques,neurofibrillary tangles com-posed of hyperphosphorylated tau,neuronal death,synapse loss,and brain atrophy.Many therapies have been tested to improve or at least effectively modify the course of AD.Meaningful data indicate that the transplantation of stem cells can alleviate neuropathology and significantly ameliorate cognitive deficits in animal models with Alzheimer's disease.Transplanted stem cells have shown their inherent advantages in improving cognitive impairment and memory dysfunction,although certain weak-nesses or limitations need to be overcome.This review recapitulates rodent models for AD,the therapeutic efficacy of stem cells,influencing factors,and the underlying mechanisms behind these changes.Stem cell therapy provides perspective and chal-lenges for its clinical application in the future.

关键词： Alzheimer's disease animal model cognitive deficits memory loss stem cell therapy

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Effectiveness of lorazepam-assisted interviews in an adolescent with dissociative amnesia A case report

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Neural Regeneration Research 2013年第2期8卷 186-190页

作者： Yuna Seo Mi-Hee Shin Sung-Gon Kim Ji-Hoon Kim Department of Psychiatry Aram Hospital Department of Psychiatry Pusan National University School of Medicine Division of Child-Adolescent Psychiatry Department of Psychiatry Pusan National University School of Medicine

To facilitate gathering information during a psychiatric interview, some psychiatrists advocate augmenting the interview using drugs. Rather than barbiturates, benzodiazepines have been used for drug-assisted interviews. Dissociative amnesia is one of the indications for these interviews. Herein, we present the case of a 15-year-old female who was diagnosed as having dissociative amnesia because of conflicts with her friends. She was administered a Iorazepam-assisted interview to aid recovery of her memories. In this case, a small dose of Iorazepam was sufficient to recover her memories without any adverse effects.

关键词： neural regeneration clinical practice dissociative amnesia dissociative disorder dissociation drug-assisted interview amobarbital, Iorazepam benzodiazepine adolescent memory loss emotional distress distress grant-supported paper neuroregeneration

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Transplantation of bone marrow mesenchymal stem cells improves cognitive deficits and alleviates neuropathology in animal models of Alzheimer’s disease: a meta-analytic review on potential mechanisms

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Translational Neurodegeneration 2020年第2期9卷 214-233页

作者： Chuan Qin Yalan Lu Kewei Wang Lin Bai Guiying Shi Yiying Huang Yongning Li Institute of Laboratory Animal Sciences Chinese Academy of Medical Sciences&Comparative Medical CenterPeking Union Medical CollegeBeijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases5 Panjiayuan Nanli StBeijing100021China Department of International Medical Service&Department of Neurosurgery Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeShuaifuyuan 1Dong Cheng DistrictBeijing100730China

Background Alzheimer’s disease is a neurodegenerative disorder.Therapeutically,a transplantation of bone marrow mesenchymal stem cells(BMMSCs)can play a beneficial role in animal models of Alzheimer’s disease.However,the relevant mechanism remains to be fully elucidated.Main body Subsequent to the transplantation of BMMSCs,memory loss and cognitive impairment were significantly improved in animal models with Alzheimer’s disease(AD).Potential mechanisms involved neurogenesis,apoptosis,angiogenesis,inflammation,immunomodulation,etc.The above mechanisms might play different roles at certain stages.It was revealed that the transplantation of BMMSCs could alter some gene levels.Moreover,the differential expression of representative genes was responsible for neuropathological phenotypes in Alzheimer’s disease,which could be used to construct gene-specific patterns.Conclusions Multiple signal pathways involve therapeutic mechanisms by which the transplantation of BMMSCs improves cognitive and behavioral deficits in AD models.Gene expression profile can be utilized to establish statistical regression model for the evaluation of therapeutic effect.The transplantation of autologous BMMSCs maybe a prospective therapy for patients with Alzheimer’s disease.

关键词： Alzheimer's disease Bone marrow mesenchymal stem cells Meta-analysis Amyloid P peptide memory loss Cognitive deficits Animal model Neuropathology

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科学家提出新的手机问题

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海外英语 2004年第4期 27-页

　　Children who use mobile phones (移动电话) risk(冒险)suffering memory loss, sleeping disorders(失常) and headaches, according to research published in the medical journal(期刊) The Lancet.……

关键词：科学家手机 memory loss 移动电话失常期刊冒险

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