Growing old, frailty, and care of the elderly.
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وَٱللَّهُ خَلَقَكُمۡ ثُمَّ يَتَوَفَّىٰكُمۡۚ وَمِنكُم مَّن يُرَدُّ إِلَىٰٓ أَرۡذَلِ ٱلۡعُمُرِ لِكَيۡ لَا يَعۡلَمَ بَعۡدَ عِلۡمࣲ شَيۡـًٔاۚ إِنَّ ٱللَّهَ عَلِيمࣱ قَدِيرࣱ
It is God who has created you and in time will cause you to die. Some of you will be reduced, in old age, to a most abject state, so that, after having knowledge, they will know nothing at all: God is truly all knowing and all powerful
۞ٱللَّهُ ٱلَّذِي خَلَقَكُم مِّن ضَعۡفࣲ ثُمَّ جَعَلَ مِنۢ بَعۡدِ ضَعۡفࣲ قُوَّةࣰ ثُمَّ جَعَلَ مِنۢ بَعۡدِ قُوَّةࣲ ضَعۡفࣰ ا وَشَيۡبَةࣰۚ يَخۡلُقُ مَا يَشَآءُۚ وَهُوَ ٱلۡعَلِيمُ ٱلۡقَدِيرُ
It is God who creates you weak, then gives you strength, then weakness after strength, together with your grey hair: He creates what He will; He is the All Knowing, the All Powerful
يَٰٓأَيُّهَا ٱلنَّاسُ إِن كُنتُمۡ فِي رَيۡبࣲ مِّنَ ٱلۡبَعۡثِ فَإِنَّا خَلَقۡنَٰكُم مِّن تُرَابࣲ ثُمَّ مِن نُّطۡفَةࣲ ثُمَّ مِنۡ عَلَقَةࣲ ثُمَّ مِن مُّضۡغَةࣲ مُّخَلَّقَةࣲ وَغَيۡرِ مُخَلَّقَةࣲ لِّنُبَيِّنَ لَكُمۡۚ وَنُقِرُّ فِي ٱلۡأَرۡحَامِ مَا نَشَآءُ إِلَىٰٓ أَجَلࣲ مُّسَمࣰّ ى ثُمَّ نُخۡرِجُكُمۡ طِفۡلࣰ ا ثُمَّ لِتَبۡلُغُوٓاْ أَشُدَّكُمۡۖ وَمِنكُم مَّن يُتَوَفَّىٰ وَمِنكُم مَّن يُرَدُّ إِلَىٰٓ أَرۡذَلِ ٱلۡعُمُرِ لِكَيۡلَا يَعۡلَمَ مِنۢ بَعۡدِ عِلۡمࣲ شَيۡـࣰٔ اۚ وَتَرَى ٱلۡأَرۡضَ هَامِدَةࣰ فَإِذَآ أَنزَلۡنَا عَلَيۡهَا ٱلۡمَآءَ ٱهۡتَزَّتۡ وَرَبَتۡ وَأَنۢبَتَتۡ مِن كُلِّ زَوۡجِۭ بَهِيجࣲ
People, [remember,] if you doubt the Resurrection, that We created you from dust, then a drop of fluid, then a clinging form, then a lump of flesh, both shaped and unshaped: We mean to make Our power clear to you. Whatever We choose We cause to remain in the womb for an appointed time, then We bring you forth as infants and then you grow and reach maturity. Some die young and some are left to live on to such an age that they forget all they once knew. You sometimes see the earth lifeless, yet when We send down water it stirs and swells and produces every kind of joyous growth
ٱلۡحَمۡدُ لِلَّهِ ٱلَّذِي وَهَبَ لِي عَلَى ٱلۡكِبَرِ إِسۡمَٰعِيلَ وَإِسۡحَٰقَۚ إِنَّ رَبِّي لَسَمِيعُ ٱلدُّعَآءِ
Praise be to God, who has granted me Ishmael and Isaac in my old age: my Lord hears all requests
قَالَ أَبَشَّرۡتُمُونِي عَلَىٰٓ أَن مَّسَّنِيَ ٱلۡكِبَرُ فَبِمَ تُبَشِّرُونَ
He said, ‘How can you give me such news when old age has come to me? What sort of news is this?’
أَيَوَدُّ أَحَدُكُمۡ أَن تَكُونَ لَهُۥ جَنَّةࣱ مِّن نَّخِيلࣲ وَأَعۡنَابࣲ تَجۡرِي مِن تَحۡتِهَا ٱلۡأَنۡهَٰرُ لَهُۥ فِيهَا مِن كُلِّ ٱلثَّمَرَٰتِ وَأَصَابَهُ ٱلۡكِبَرُ وَلَهُۥ ذُرِّيَّةࣱ ضُعَفَآءُ فَأَصَابَهَآ إِعۡصَارࣱ فِيهِ نَارࣱ فَٱحۡتَرَقَتۡۗ كَذَٰلِكَ يُبَيِّنُ ٱللَّهُ لَكُمُ ٱلۡأٓيَٰتِ لَعَلَّكُمۡ تَتَفَكَّرُونَ
Would any of you like to have a garden of palm trees and vines, graced with flowing streams and all kinds of produce, which, when you are afflicted with old age and feeble offspring, is struck by a fiery whirlwind and burnt down? In this way God makes His messages clear to you, so that you may reflect on them
Commentary on the verses above, at most two editions per verse.
And God has created you when you were nothing then He takes you in death when your terms of life are concluded; and there are some among you who are relegated to the most abject stage of life that is the most diminished because of old-age and senility so that he knows nothing after having possessed some knowledge. ‘Ikrima said ‘Whoever recites the Qur’ān will not come to such a predicament’. God is Knowing of how to manage the affairs of His creation Powerful in doing what He will.
And Allah created you and then He will cause you to die; and among you there are some who are sent back to senility, so that they know nothing after having known (much). Truly, Allah is Knowing, capable of all things (70) In Man there is a Lesson Allah tells us that He is controlling the affairs of His servants. He is the One Who created them out of nothing, then He will cause them to die. But there are some of them that He allows to grow old, which is a physical weakness, as Allah says: اللَّهُ الَّذِي خَلَقَكُم مِّن ضَعْفٍ ثُمَّ جَعَلَ مِن بَعْدِ ضَعْفٍ قُوَّةً (Allah is He Who created you in (a state of) weakness, then gave you strength after weakness, then after strength gave (you) weakness)(30:54) لِكَيْ لَا يَعْلَمَ بَعْدَ عِلْمٍ شَيْئًا (so that they know nothing after having known.) meaning, after he knew things, he will reach a stage where he knows nothing because of weakn
O people, if you are in doubt about the Uprising, surely We created you of dust, then of a sperm drop, then of a blood clot, then of a lump of flesh, fully created and not fully created, that We might make clear to you. The composition of the Adamic body in the first creation is a clear argument against the deniers of the Uprising. He is saying, “I am the Lord who created a body and figure with such comeliness, a stature and form with such beauty, from that feeble sperm drop in that firm settledness. He says, “Did We not create you of feeble water, then put it in a firm settledness?” [77:20-21]. If you ponder this body, you will find an exemplar of all the created and newly arrived things in the celestial and terrestrial worlds. Just as He arranged the seven spheres in heaven, so also He composed seven parts in this body-water and dust, and then flesh, skin, veins, sinews, and bones. Jus
God is the One Who created you from a state of weakness from a ‘base fluid’ cf. Q. 328 then He ordained after a second weakness which is the weakness of the period of childhood strength that is the strength of youth then after strength He appointed weakness again and grey hair the weakness of old age and the grey hairs of decrepitude read vocalised as du‘f ‘weakness’ in all three places. He creates what He will of weakness and strength youth and grey hairs and He is the Knower of how to manage His creatures the Omnipotent.
Allah is He Who created you in weakness, then gave you strength after weakness, then after strength gave (you) weakness and grey hair. He creates what He wills. And He is the All-Knowing, the All-Powerful (54) The Different Stages of Man Here Allah points out how man passes through different stages of creation, one phase after another. He is originally created from dust, then from a Nutfah, then from a clot, then from a lump of flesh. Then he becomes bones, then the bones are clothed with flesh, then the soul is breathed into him. Then he emerges from his mother's womb, weak and thin and powerless. Then he grows up little by little, until he becomes a child, then he reaches the stage of puberty, then he becomes a young man, which is strength after weakness. Then he starts to get older, reaching middle age, then old age and senility, weakness after strength, so he loses his resolve, pow
O mankind in other words O people of Mecca if you are in doubt about the Resurrection then lo! consider that We have created you that is We have created your origin — Adam — from dust then We created his progeny from a drop a sperm-drop then from a clot congealed blood then from a little lump of flesh mudgha a piece of flesh the size of what one would be able to chew mā yumdagh partly formed shaped complete in form and partly unformed that is uncomplete in form that We may make clear to you the perfect nature of Our power that you might then infer from this initial act of creation the reality of its future restoration. And We establish nuqirru marks a new grammatically independent sentence in the wombs whatever We will for a specified time that is until the time for it to come out then We bring you forth from the bellies of your mothers as infants and then We extend your life that you ma
Sound narrations only, and never matched by text. A narration appears here because a compiler filed it under a chapter this subject maps to, or because someone read it and anchored it. Each row says which.
حَدَّثَنَا آدَمُ بْنُ أَبِي إِيَاسٍ، حَدَّثَنَا شُعْبَةُ، عَنْ عَدِيِّ بْنِ ثَابِتٍ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ يَزِيدَ الأَنْصَارِيَّ، عَنْ أَبِي مَسْعُودٍ الأَنْصَارِيِّ، فَقُلْتُ عَنِ النَّبِيِّ فَقَالَ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " إِذَا أَنْفَقَ الْمُسْلِمُ نَفَقَةً عَلَى أَهْلِهِ وَهْوَ يَحْتَسِبُهَا، كَانَتْ لَهُ صَدَقَةً ".
Narrated Abu Mas`ud Al-Ansari:The Prophet (ﷺ) said, "When a Muslim spends something on his family intending to receive Allah's reward it is regarded as Sadaqa for him
حَدَّثَنَا إِسْمَاعِيلُ، قَالَ حَدَّثَنِي مَالِكٌ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " قَالَ اللَّهُ أَنْفِقْ يَا ابْنَ آدَمَ أُنْفِقْ عَلَيْكَ ".
Narrated Abu Huraira:Allah's Messenger (ﷺ) said, "Allah said, 'O son of Adam! Spend, and I shall spend on you
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، أَخْبَرَنَا يَحْيَى بْنُ سَعِيدٍ، أَخْبَرَنَا بَهْزُ بْنُ حَكِيمٍ، حَدَّثَنِي أَبِي، عَنْ جَدِّي، قَالَ قُلْتُ يَا رَسُولَ اللَّهِ مَنْ أَبَرُّ قَالَ " أُمَّكَ " . قَالَ قُلْتُ ثُمَّ مَنْ قَالَ " أُمَّكَ " . قَالَ قُلْتُ ثُمَّ مَنْ قَالَ " أُمَّكَ " . قَالَ قُلْتُ ثُمَّ مَنْ قَالَ " ثُمَّ أَبَاكَ ثُمَّ الأَقْرَبَ فَالأَقْرَبَ " . قَالَ وَفِي الْبَابِ عَنْ أَبِي هُرَيْرَةَ وَعَبْدِ اللَّهِ بْنِ عُمَرَ وَعَائِشَةَ وَأَبِي الدَّرْدَاءِ . قَالَ أَبُو عِيسَى وَبَهْزُ بْنُ حَكِيمٍ هُوَ ابْنُ مُعَاوِيَةَ بْنِ حَيْدَةَ الْقُشَيْرِيُّ . وَهَذَا حَدِيثٌ حَسَنٌ . وَقَدْ تَكَلَّمَ شُعْبَةُ فِي بَهْزِ بْنِ حَكِيمٍ وَهُوَ ثِقَةٌ عِنْدَ أَهْلِ الْحَدِيثِ وَرَوَى عَنْهُ مَعْمَرٌ وَالثَّوْرِيُّ وَحَمَّادُ بْنُ سَلَمَةَ وَغَيْرُ وَاحِدٍ مِنَ الأَئِمَّةِ .
Bahz bin Hakim narrated from his father, from his grandfather who said:"I said: 'O Messenger of Allah! Who most deserves(my) reverence?' He said: 'Your mother.'" He said: "I said: 'Then who?' He said: 'Your mother.'" He said: "I said: 'Then who?' He said: 'Your mother.'" He said: "I said: 'Then who?' He said: 'Then your father, then the nearest relatives, then the nearest relatives
حَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدٍ، أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، عَنِ الْمَسْعُودِيِّ، عَنِ الْوَلِيدِ بْنِ الْعَيْزَارِ، عَنْ أَبِي عَمْرٍو الشَّيْبَانِيِّ، عَنِ ابْنِ مَسْعُودٍ، قَالَ سَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم فَقُلْتُ يَا رَسُولَ اللَّهِ أَىُّ الأَعْمَالِ أَفْضَلُ قَالَ " الصَّلاَةُ لِمِيقَاتِهَا " . قُلْتُ ثُمَّ مَاذَا يَا رَسُولَ اللَّهِ قَالَ " بِرُّ الْوَالِدَيْنِ " . قُلْتُ ثُمَّ مَاذَا يَا رَسُولَ اللَّهِ قَالَ " الْجِهَادُ فِي سَبِيلِ اللَّهِ " . ثُمَّ سَكَتَ عَنِّي رَسُولُ اللَّهِ صلى الله عليه وسلم وَلَوِ اسْتَزَدْتُهُ لَزَادَنِي . قَالَ أَبُو عِيسَى وَهَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ . رَوَاهُ الشَّيْبَانِيُّ وَشُعْبَةُ وَغَيْرُ وَاحِدٍ عَنِ الْوَلِيدِ بْنِ الْعَيْزَارِ وَقَدْ رُوِيَ هَذَا الْحَدِيثُ مِنْ غَيْرِ وَجْهٍ عَنْ أَبِي عَمْرٍو الشَّيْبَانِيِّ عَنِ ابْنِ مَسْعُودٍ . وَأَبُو عَمْرٍو الشَّيْبَانِيُّ اسْمُهُ سَعْدُ بْنُ إِيَاسٍ .
Ibn Mas'ud said:"I asked the Messenger of Allah: 'O Messenger of Allah! Which is the most virtuous of deeds?' He said: 'Salat during its appropriate time.' I said: 'Then what, O Messenger of Allah?' He said: 'Being dutiful to one's parents.' I said: 'Then what, O Messenger of Allah?' He said: 'Jihad in the cause of Allah.' Then the messenger of Allah was silent, and if I had asked him more, he would have told me more
Arabic originals, reached through the subject’s Arabic senses. Interpretive sources, never proof of a ruling.
ورضواني وجنتي امكثوا فيها خالدين مخلدين ثم يقول لأهل النار كم لبثتم في الأرض عدد سنين قالوا لبثنا يوما أو بعض يوم فيقول بئسما اتجرتم في يوم أو بعض يوم سخطي ومعصيتي وناري امكثوا فيها خالدين مخلدين وخرج الحاكم من حديث عبد الجبار بن وهب أنبأنا سعيد بن طارق عن أبيه عن النبي صلى الله عليه وسلم قال نعمت الدار الدنيا لمن تزود منها لآخرته حتى يرضي ربه وبئست الدار لمن صدته عن آخرته وقصرت به عن رضا ربه وإذا قال العبد قبح الله الدنيا قالت الدنيا قبح الله أعصانا لربه وقال صحيح الإسناد وخرجه العقيلي وقال عبد الجبار بن وهب مجهول وحديثه غير محفوظ قال وهذا الكلام يروي عن علي من قوله وقول علي خرجه ابن أبي الدنيا عنه بإسناد فيه نظر أن عليا سمع رجلا يسب الدنيا فقال إنها لدار صدق لمن صدقها ودار عافية لمن فهم عنها ودار غني لمن تزود منها مسجد أحباب الله ومهبط وحيه ومصلى ملائكته ومتجر أوليائه اكتسبوا فيها الرحمة وربحوا فيها الجنة فمن ذا يذم الدنيا وقد آذنت بفراقها ونادت بعيبها نعت نفسها وأهلها فمثلت ببلائها ال
وقال مالك رحمه الله ما كان رجل صادقا في حديثه ولا يكذب إلا متع بعقله ولم يصبه مع الهرم آفة ولا خرف
وأما الفدية فتجب على الحامل والمرضع إذا أفطرتا خوفا على ولديهما لكل يوم مد حنطة لمسكين واحد مع القضاء والشيخ الهرم إذا لم يصم تصدق عن كل يوم مدا
وفي وصية لقمان لابنه يا بني اتق المرأة السوء فإنها تشيبك قبل الشيب واتق شرار النساء فإنهن لا يدعون إلى خير وكن من خيارهن على حذر
النوع الثاني من إزالة الفضلات: أجزاء تحذف، مثل قص الشارب، ونتف الإبط، وحلق العانة، وقص الأظافر. ويكره نتف الشيب، ويستحب خضابه.
فإن بقيت رأيت الشيب راغمة % وفي التفرق ما يقضي من العبر
Peer-reviewed work held with its DOI and abstract, labelled with the study design its publication types report. None of it has been read or assessed, so nothing here may be cited as showing anything. Retracted work is held for the record but never listed; a review that a later version replaced is listed under its replacement and marked.
A randomized study of a multidisciplinary program to intervene on geriatric syndromes in vulnerable older people who live at home (Dutch EASYcare Study).: Background: The effectiveness of community-based geriatric intervention models for vulnerable older adults is controversial. We evaluated a problem-based multidisciplinary intervention targeting vulnerable older adults at home that promised efficacy through better timing and increased commitment of patients and primary care physicians. This study compared the effects of this new model to usual care. Methods: Primary care physicians referred older people for problems with cognition, nutrition, be
Elder abuse: a systematic review of risk factors in community-dwelling elders.: Objective: to undertake a systematic literature review of risk factors for abuse in community-dwelling elders, as a first step towards exploring the clinical utility of a risk factor framework. Search strategy and selection criteria: a search was undertaken using the MEDLINE, CINAHL, EMBASE and PsycINFO databases for articles published in English up to March 2011, to identify original studies with statistically significant risk factors for abuse in community-dwelling elders. Studies concerning s
A Multicomponent Exercise Intervention that Reverses Frailty and Improves Cognition, Emotion, and Social Networking in the Community-Dwelling Frail Elderly: A Randomized Clinical Trial.: Background: Frailty can be an important clinical target to reduce rates of disability. Objective: To ascertain if a supervised-facility multicomponent exercise program (MEP) when performed by frail older persons can reverse frailty and improve functionality; cognitive, emotional, and social networking; as well as biological biomarkers of frailty, when compared with a controlled population that received no training. Design: This is an interventional, controlled, simple randomized study. Researche
Interventions to Reduce Ageism Against Older Adults: A Systematic Review and Meta-Analysis.: Background. Research has found a strong link between ageism, in the form of negative stereotypes, prejudice, and discrimination toward older people, and risks to their physical and mental health. Little is known, however, about the effectiveness of strategies to reduce ageism. Objectives. To assess the relative effects of 3 intervention types designed to reduce ageism among youths and adults-education, intergenerational contact, and combined education and intergenerational contact-by conducting
Factors associated with frailty in older people: an umbrella review.: Background: The number of frail older people is increasing worldwide, and all countries will be confronted with their growing needs for healthcare and social support. The aim of this umbrella review was to summarize the evidence on the factors associated with frailty in older people, using a socioecological approach. Methods: PubMed (MEDLINE), Scopus, Web of Science, ScienceDirect, Hinari (research4life), and the Trip database were systematically searched up to April 2023. Systematic reviews of
Iridescent Life Course: LGBTQ Aging Research and Blueprint for the Future - A Systematic Review.: Background: LGBTQ* (lesbian, gay, bisexual, trans, and queer) older adults are demographically diverse and growing populations. In an earlier 25-year review of the literature on sexual orientation and aging, we identified four waves of research that addressed dispelling negative stereotypes, psychosocial adjustment to aging, identity development, and social and community-based support in the lives of LGBTQ older adults. Objectives: The current review was designed to develop an evidence base for
Sleep, testosterone and cortisol balance, and ageing men.
Sleep serves important biological functions, and influences health and longevity through endocrine and metabolic related systems. Sleep debt, circadian misalignment and sleep disruption from obstructive sleep apnea is widespread in modern society and accumulates with life because recovery sleep is not completely restorative. Accumulated disordered sleep throughout life impacts the ageing process and the development of age-related diseases. When epidemiological and interventional studies are considered collectively, sleep loss and lower sleep duration are associated with lower morning, afternoon and 24-h testosterone; as well as higher afternoon, but not morning or 24-h cortisol. These reciprocal changes imbalances anabolic-catabolic signaling because testosterone and cortisol are respectively the main anabolic and catabolic signals in man. Fixing testosterone-cortisol balance by means of…
matched on Aging (mesh)
Testicular aging, male fertility and beyond.
Normal spermatogenesis and sperm function are crucial for male fertility. The effects of healthy testicular aging and testicular premature aging on spermatogenesis, sperm function, and the spermatogenesis microenvironment cannot be ignored. Compared with younger men, the testis of older men tends to have disturbed spermatogenic processes, sperm abnormalities, sperm dysfunction, and impaired Sertoli and Leydig cells, which ultimately results in male infertility. Various exogenous and endogenous factors also contribute to pathological testicular premature aging, such as adverse environmental stressors and gene mutations. Mechanistically, Y-chromosomal microdeletions, increase in telomere length and oxidative stress, accumulation of DNA damage with decreased repair ability, alterations in epigenetic modifications, miRNA and lncRNA expression abnormalities, have been associated with impaired…
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Stress-induced biological aging: A review and guide for research priorities.
Exposure to chronic adverse conditions, and the resultant activation of the neurobiological response cascade, has been associated with an increased risk of early onset of age-related disease and, recently, with an older biological age. This body of research has led to the hypothesis that exposure to stressful life experiences, when occurring repeatedly or over a prolonged period, may accelerate the rate at which the body ages. The mechanisms through which chronic psychosocial stress influences distinct biological aging pathways to alter rates of aging likely involve multiple layers in the physiological-molecular network. In this review, we integrate research using animal, human, and in vitro models to begin to delineate the distinct pathways through which chronic psychosocial stress may impact biological aging, as well as the neuroendocrine mediators (i.e., norepinephrine, epinephrine, a…
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Telomeres and Mitochondrial Metabolism: Implications for Cellular Senescence and Age-related Diseases.
Cellular senescence is an irreversible cell arrest process, which is determined by a variety of complicated mechanisms, including telomere attrition, mitochondrial dysfunction, metabolic disorders, loss of protein homeostasis, epigenetic changes, etc. Cellular senescence is causally related to the occurrence and development of age-related disease. The elderly is liable to suffer from disorders such as neurodegenerative diseases, cancer, and diabetes. Therefore, it is increasingly imperative to explore specific countermeasures for the treatment of age-related diseases. Numerous studies on humans and mice emphasize the significance of metabolic imbalance caused by short telomeres and mitochondrial damages in the onset of age-related diseases. Although the experimental data are relatively independent, more and more evidences have shown that there is mutual crosstalk between telomeres and mi…
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Human age reversal: Fact or fiction?
Although chronological age correlates with various age-related diseases and conditions, it does not adequately reflect an individual's functional capacity, well-being, or mortality risk. In contrast, biological age provides information about overall health and indicates how rapidly or slowly a person is aging. Estimates of biological age are thought to be provided by aging clocks, which are computational models (e.g., elastic net) that use a set of inputs (e.g., DNA methylation sites) to make a prediction. In the past decade, aging clock studies have shown that several age-related diseases, social variables, and mental health conditions associate with an increase in predicted biological age relative to chronological age. This phenomenon of age acceleration is linked to a higher risk of premature mortality. More recent research has demonstrated that predicted biological age is sensitive t…
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Gut Microbiota Interact With the Brain Through Systemic Chronic Inflammation: Implications on Neuroinflammation, Neurodegeneration, and Aging.
It has been noticed in recent years that the unfavorable effects of the gut microbiota could exhaust host vigor and life, yet knowledge and theory are just beginning to be established. Increasing documentation suggests that the microbiota-gut-brain axis not only impacts brain cognition and psychiatric symptoms but also precipitates neurodegenerative diseases, such as Alzheimer's disease (AD), Parkinson's disease (PD), and multiple sclerosis (MS). How the blood-brain barrier (BBB), a machinery protecting the central nervous system (CNS) from the systemic circulation, allows the risky factors derived from the gut to be translocated into the brain seems paradoxical. For the unique anatomical, histological, and immunological properties underpinning its permeable dynamics, the BBB has been regarded as a biomarker associated with neural pathogenesis. The BBB permeability of mice and rats cause…
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The neuroprotective effects of intermittent fasting on brain aging and neurodegenerative diseases via regulating mitochondrial function.
Intermittent fasting (IF) has been studied for its effects on lifespan and the prevention or delay of age-related diseases upon the regulation of metabolic pathways. Mitochondria participate in key metabolic pathways and play important roles in maintaining intracellular signaling networks that modulate various cellular functions. Mitochondrial dysfunction has been described as an early feature of brain aging and neurodegeneration. Although IF has been shown to prevent brain aging and neurodegeneration, the mechanism is still unclear. This review focuses on the mechanisms by which IF improves mitochondrial function, which plays a central role in brain aging and neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and Huntington's disease. The cellular and molecular mechanisms of IF in brain aging and neurodegeneration involve activation of adaptive cellular stress…
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Epigenetics of aging and disease: a brief overview.
Aging is an important risk factor for several human diseases such as cancer, cardiovascular disease and neurodegenerative disorders, resulting from a combination of genetic and environmental factors (e.g., diet, smoking, obesity and stress), which, at molecular level, cause changes in gene expression underlying the decline of physiological function. Epigenetics, which include mechanisms regulating gene expression independently of changes to DNA sequence, regulate gene expression by modulating the structure of chromatin or by regulating the binding of transcriptional machinery to DNA. Several studies showed that an impairment of epigenetic mechanisms promotes alteration of gene expression underlying several aging-related diseases. Alteration of these mechanisms is also linked with changes of gene expression that occurs during aging processes of different tissues. In this review, we will o…
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Role of gut-brain axis, gut microbial composition, and probiotic intervention in Alzheimer's disease.
Gut microbiota represents a diverse and dynamic population of microorganisms harboring the gastrointestinal tract, which influences the host health and disease. Gut microbiota communicates with the brain and vice versa through complex bidirectional communication systems - the gut-brain axis, which integrates the peripheral intestinal function with emotional and cognitive brain centers via neuro-immuno-endocrine mediators. Aging alters the gut microbial population, which not only leads to gastrointestinal disturbances but also causes central nervous system (CNS) disorders such as dementia. Alzheimer's disease (AD) is the most common form of dementia affecting the older person, characterized by beta-amyloid (Aβ) plaques and neurofibrillary tangles leading to the cognitive deficit and memory impairment. Multiple experimental and clinical studies revealed the role of gut microbiota in host c…
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Molecular and cellular pathways contributing to brain aging.
Aging is the leading risk factor for several age-associated diseases such as neurodegenerative diseases. Understanding the biology of aging mechanisms is essential to the pursuit of brain health. In this regard, brain aging is defined by a gradual decrease in neurophysiological functions, impaired adaptive neuroplasticity, dysregulation of neuronal Ca2+ homeostasis, neuroinflammation, and oxidatively modified molecules and organelles. Numerous pathways lead to brain aging, including increased oxidative stress, inflammation, disturbances in energy metabolism such as deregulated autophagy, mitochondrial dysfunction, and IGF-1, mTOR, ROS, AMPK, SIRTs, and p53 as central modulators of the metabolic control, connecting aging to the pathways, which lead to neurodegenerative disorders. Also, calorie restriction (CR), physical exercise, and mental activities can extend lifespan and increase nerv…
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Impact of Mediterranean Diet on Chronic Non-Communicable Diseases and Longevity.
The average life expectancy of the world population has increased remarkably in the past 150 years and it is still increasing. A long life is a dream of humans since the beginning of time but also a dream is to live it in good physical and mental condition. Nutrition research has focused on recent decades more on food combination patterns than on individual foods/nutrients due to the possible synergistic/antagonistic effects of the components in a dietary model. Various dietary patterns have been associated with health benefits, but the largest body of evidence in the literature is attributable to the traditional dietary habits and lifestyle followed by populations from the Mediterranean region. After the Seven Countries Study, many prospective observational studies and trials in diverse populations reinforced the beneficial effects associated with a higher adherence to the Mediterranean…
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Aging adipose: Depot location dictates age-associated expansion and dysfunction.
Adipose tissue has a variety of diverse functions that maintain energy homeostasis. In conditions of excess energy availability, adipose tissue increases its lipid storage and communicates the nutritional abundance to various organs in the body. In conditions of energy depletion, such as fasting, cold exposure, or prolonged exercise, triglycerides stored in adipose tissue are released as free fatty acids to support the shift to catabolic metabolism. These diverse functions of storage, communication, and energy homeostasis are shared between numerous adipose depots including subcutaneous, visceral, brown, beige, intramuscular, marrow, and dermal adipose tissue. As organisms age, the cellular composition of these depots shifts to facilitate increased inflammatory cell infiltration, decreased vasculature, and increased adipocyte quantity and lipid droplet size. The purpose of this review is…
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Healthy Effects of Plant Polyphenols: Molecular Mechanisms.
The increasing extension in life expectancy of human beings in developed countries is accompanied by a progressively greater rate of degenerative diseases associated with lifestyle and aging, most of which are still waiting for effective, not merely symptomatic, therapies. Accordingly, at present, the recommendations aimed at reducing the prevalence of these conditions in the population are limited to a safer lifestyle including physical/mental exercise, a reduced caloric intake, and a proper diet in a convivial environment. The claimed health benefits of the Mediterranean and Asian diets have been confirmed in many clinical trials and epidemiological surveys. These diets are characterized by several features, including low meat consumption, the intake of oils instead of fats as lipid sources, moderate amounts of red wine, and significant amounts of fresh fruit and vegetables. In particu…
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The kynurenine pathway: a finger in every pie.
The kynurenine pathway (KP) plays a critical role in generating cellular energy in the form of nicotinamide adenine dinucleotide (NAD+). Because energy requirements are substantially increased during an immune response, the KP is a key regulator of the immune system. Perhaps more importantly in the context of psychiatry, many kynurenines are neuroactive, modulating neuroplasticity and/or exerting neurotoxic effects in part through their effects on NMDA receptor signaling and glutamatergic neurotransmission. As such, it is not surprising that the kynurenines have been implicated in psychiatric illness in the context of inflammation. However, because of their neuromodulatory properties, the kynurenines are not just additional members of a list of inflammatory mediators linked with psychiatric illness, but in preclinical studies have been shown to be necessary components of the behavioral a…
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Mechanisms of Aging and the Preventive Effects of Resveratrol on Age-Related Diseases.
Aging gradually decreases cellular biological functions and increases the risk of age-related diseases. Cancer, type 2 diabetes mellitus, cardiovascular disease, and neurological disorders are commonly classified as age-related diseases that can affect the lifespan and health of individuals. Aging is a complicated and sophisticated biological process involving damage to biochemical macromolecules including DNA, proteins, and cellular organelles such as mitochondria. Aging causes multiple alterations in biological processes including energy metabolism and nutrient sensing, thus reducing cell proliferation and causing cellular senescence. Among the polyphenolic phytochemicals, resveratrol is believed to reduce the negative effects of the aging process through its multiple biological activities. Resveratrol increases the lifespan of several model organisms by regulating oxidative stress, en…
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A research agenda for ageing in China in the 21st century (2nd edition): Focusing on basic and translational research, long-term care, policy and social networks.
One of the key issues facing public healthcare is the global trend of an increasingly ageing society which continues to present policy makers and caregivers with formidable healthcare and socio-economic challenges. Ageing is the primary contributor to a broad spectrum of chronic disorders all associated with a lower quality of life in the elderly. In 2019, the Chinese population constituted 18 % of the world population, with 164.5 million Chinese citizens aged 65 and above (65+), and 26 million aged 80 or above (80+). China has become an ageing society, and as it continues to age it will continue to exacerbate the burden borne by current family and public healthcare systems. Major healthcare challenges involved with caring for the elderly in China include the management of chronic non-communicable diseases (CNCDs), physical frailty, neurodegenerative diseases, cardiovascular diseases, wi…
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COVID-19 and the elderly: insights into pathogenesis and clinical decision-making.
The elderly may represent a specific cluster of high-risk patients for developing COVID-19 with rapidly progressive clinical deterioration. Indeed, in older individuals, immunosenescence and comorbid disorders are more likely to promote viral-induced cytokine storm resulting in life-threatening respiratory failure and multisystemic involvement. Early diagnosis and individualized therapeutic management should be developed for elderly subjects based on personal medical history and polypharmacotherapy. Our review examines the pathogenesis and clinical implications of ageing in COVID-19 patients; finally, we discuss the evidence and controversies in the management in the long-stay residential care homes and aspects of end-of-life care for elderly patients with COVID-19.
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Does the choice of Allostatic Load scoring algorithm matter for predicting age-related health outcomes?
Allostatic Load (AL) is posited to provide a measure of cumulative physiological dysregulation across multiple biological systems and demonstrates promise as a sub-clinical marker of overall health. Despite the large heterogeneity of measures employed in the literature to represent AL, few studies have investigated the impact of different AL scoring systems in predicting health. This study uses data for 4477 participants aged 50+ years participating in the Irish Longitudinal Study on Ageing (TILDA) to compare the utility of 14 different scoring algorithms that have been used to operationalise AL (i.e. count-based high-risk quartiles, deciles, two-tailed cut-points, z-scores, system-weighted indices, clinical cut-points, sex-specific scores, and incorporating medication usage). Model fit was assessed using R2, Bayesian Information Criterion (BIC), and the area under the Receiver Operating…
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Culture and well-being in late adulthood: Theory and evidence.
Aging happens to everyone everywhere. At present, however, little is known about whether life-span adult development-and particularly development in late adulthood-is pancultural or culture-bound. Here, we propose that in Western cultural contexts, individuals are encouraged to maintain the active, positive, and independent self. This cultural expectation continues even in late adulthood, thus leading to a mismatch between aspirations to live up to the cultural expectation and the reality of aging. This mismatch is potentially alienating. In contrast, in Asian cultural contexts, a critical task throughout life is to achieve attunement with age-graded social roles. This ideal may be more attainable even in late adulthood. Our review of existent evidence lends support to this analysis. Specifically, in late adulthood, Americans showed a robust psychological bias toward high-arousal positiv…
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Effects of Exercise on Brain and Cognition Across Age Groups and Health States.
Exercise has been shown to benefit brain structure and function, particularly in aging populations. However, the mechanisms by which exercise exerts its effects, especially in humans, are not fully understood. This review argues that one reason for this knowledge gap is that exercise likely operates through multiple levels of mechanisms. Furthermore, the mechanisms of exercise may vary depending on factors such as age and health state. We discuss the state of evidence at each of three levels of analysis (molecular/cellular, brain structure/function, and mental states and higher-order behaviors) and highlight consistencies across these levels, inconsistencies within them, and knowledge gaps. Lastly, based on these, we speculate about which mechanisms of exercise may be universal across age groups and populations versus those that might be distinct to specific age ranges or populations.
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Psychosocial Stressors and Telomere Length: A Current Review of the Science.
A growing literature suggests that exposure to adverse social conditions may accelerate biological aging, offering one mechanism through which adversity may increase risk for age-related disease. As one of the most extensively studied biological markers of aging, telomere length (TL) provides a valuable tool to understand potential influences of social adversity on the aging process. Indeed, a sizeable literature now links a wide range of stressors to TL across the life span. The aim of this article is to review and evaluate this extant literature with a focus on studies that investigate psychosocial stress exposures and experiences in early life and adulthood. We conclude by outlining potential biological and behavioral mechanisms through which psychosocial stress may influence TL, and we discuss directions for future research in this area.
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Older LGBT+ health inequalities in the UK: setting a research agenda.
Lesbian, gay, bisexual and trans+ (LGBT+) people report poorer health than the general population and worse experiences of healthcare particularly cancer, palliative/end-of-life, dementia and mental health provision. This is attributable to: (a) social inequalities, including 'minority stress'; (b) associated health-risk behaviours (eg, smoking, excessive drug/alcohol use, obesity); (c) loneliness and isolation, affecting physical/mental health and mortality; (d) anticipated/experienced discrimination and (e) inadequate understandings of needs among healthcare providers. Older LGBT+ people are particularly affected, due to the effects of both cumulative disadvantage and ageing. There is a need for greater and more robust research data to support growing international and national government initiatives aimed at addressing these health inequalities. We identify seven key research strategi…
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Allostatic load and ageing: linking the microbiome and nutrition with age-related health.
Ageing is a process of decline in physiological function and capability over time. It is an anticipated major burden on societal health-care costs due to an increasingly aged global population. Accelerated biological ageing is a feature of age-related morbidities, which also appear to share common underpinning features, including low-grade persistent inflammation, phosphate toxicity, diminished Nrf2 activity, a depleted metabolic capability, depressed mitochondrial biogenesis and a low diversity gut microbiome. Social, psychological, lifestyle and nutritional risk factors can all influence the trajectory of age-related health, as part of an individual's exposome, which reflects the interplay between the genome and the environment. This is manifest as allostatic (over)load reflecting the burden of lifestyle/disease at both a physiological and molecular level. In particular, age-related ge…
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[Aging of the immune system: From fundamental to clinical data].
Major progress in preventing, delaying or curing various pathologies normally encountered in old age results in a continuous improvement in life expectancy. However, understanding the underlying cause of the disparate comorbidities occurrence with aging remains a priority in order to propose adapted care for the older population. In one hand, aging profoundly impairs the immune system; it is characterized by many changes in haematopoiesis, adaptive and innate systems, and is associated with pro-inflammatory environment. In another hand, stressful events (acute or chronic) can also impact the immune system through the secretion of hormones, which are also altered with aging. Blooming evidences from psychoneuroimmunology field suggest that, in acute medical conditions, elderly people are not equal in their responses to stressors depending on many extrinsic and intrinsic parameters. These f…
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Psychobiological factors of resilience and depression in late life.
In contrast to traditional perspectives of resilience as a stable, trait-like characteristic, resilience is now recognized as a multidimentional, dynamic capacity influenced by life-long interactions between internal and environmental resources. We review psychosocial and neurobiological factors associated with resilience to late-life depression (LLD). Recent research has identified both psychosocial characteristics associated with elevated LLD risk (e.g., insecure attachment, neuroticism) and psychosocial processes that may be useful intervention targets (e.g., self-efficacy, sense of purpose, coping behaviors, social support). Psychobiological factors include a variety of endocrine, genetic, inflammatory, metabolic, neural, and cardiovascular processes that bidirectionally interact to affect risk for LLD onset and course of illness. Several resilience-enhancing intervention modalities …
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