')}.amp-carousel-button-prev{background-image:url('data:image/svg+xml;charset=utf-8,Previous ')}.ampstart-dropdown{min-width:200px}.ampstart-dropdown.absolute{z-index:100}.ampstart-dropdown.absolute>section,.ampstart-dropdown.absolute>section>header{height:100%}.ampstart-dropdown>section>header{background-color:#000;border:0;color:#fff}.ampstart-dropdown>section>header:after{display:inline-block;content:"+";padding:.1rem .22rem;background: #003f93; border-radius: 50%; color: #fff; margin-right: 5px;}.ampstart-dropdown>[expanded]>header:after{content:"–"}.absolute .ampstart-dropdown-items{z-index:200}.ampstart-dropdown-item{background-color:#000;color:#003f93;opacity:.9}.ampstart-dropdown-item:active,.ampstart-dropdown-item:hover{opacity:1}.ampstart-footer{background-color:#fff;color:#000;padding-top:5rem;padding-bottom:5rem}.ampstart-footer .ampstart-icon{fill:#000}.ampstart-footer .ampstart-social-follow li:last-child{margin-right:0}.ampstart-image-fullpage-hero{color:#fff}.ampstart-fullpage-hero-heading-text,.ampstart-image-fullpage-hero .ampstart-image-credit{-webkit-box-decoration-break:clone;box-decoration-break:clone;background:#000;padding:0 1rem .2rem}.ampstart-image-fullpage-hero>amp-img{max-height:calc(100vh - 3.5rem)}.ampstart-image-fullpage-hero>amp-img img{-o-object-fit:cover;object-fit:cover}.ampstart-fullpage-hero-heading{line-height:3.5rem}.ampstart-fullpage-hero-cta{background:transparent}.ampstart-readmore{background:-webkit-linear-gradient(bottom,rgba(0,0,0,.65),transparent);background:linear-gradient(0deg,rgba(0,0,0,.65) 0,transparent);color:#fff;margin-top:5rem;padding-bottom:3.5rem}.ampstart-readmore:after{display:block;content:"⌄";font-size:2rem}.ampstart-readmore-text{background:#000}@media (min-width:52.06rem){.ampstart-image-fullpage-hero>amp-img{height:60vh}}.ampstart-image-heading{color:#fff;background:-webkit-linear-gradient(bottom,rgba(0,0,0,.65),transparent);background:linear-gradient(0deg,rgba(0,0,0,.65) 0,transparent)}.ampstart-image-heading>*{margin:0}amp-carousel .ampstart-image-with-heading{margin-bottom:0}.ampstart-image-with-caption figcaption{color:#4f4f4f;line-height:1.125rem}amp-carousel .ampstart-image-with-caption{margin-bottom:0}.ampstart-input{max-width:100%;width:300px;min-width:100px;font-size:1rem;line-height:1.5rem}.ampstart-input [disabled],.ampstart-input [disabled]+label{opacity:.5}.ampstart-input [disabled]:focus{outline:0}.ampstart-input>input,.ampstart-input>select,.ampstart-input>textarea{width:100%;margin-top:1rem;line-height:1.5rem;border:0;border-radius:0;border-bottom:1px solid #4a4a4a;background:none;color:#4a4a4a;outline:0}.ampstart-input>label{color:#003f93;pointer-events:none;text-align:left;font-size:.875rem;line-height:1rem;opacity:0;-webkit-animation:.2s;animation:.2s;-webkit-animation-timing-function:cubic-bezier(.4,0,.2,1);animation-timing-function:cubic-bezier(.4,0,.2,1);-webkit-animation-fill-mode:forwards;animation-fill-mode:forwards}.ampstart-input>input:focus,.ampstart-input>select:focus,.ampstart-input>textarea:focus{outline:0}.ampstart-input>input:focus::-webkit-input-placeholder,.ampstart-input>select:focus::-webkit-input-placeholder,.ampstart-input>textarea:focus::-webkit-input-placeholder{color:transparent}.ampstart-input>input:focus::-moz-placeholder,.ampstart-input>select:focus::-moz-placeholder,.ampstart-input>textarea:focus::-moz-placeholder{color:transparent}.ampstart-input>input:focus:-ms-input-placeholder,.ampstart-input>select:focus:-ms-input-placeholder,.ampstart-input>textarea:focus:-ms-input-placeholder{color:transparent}.ampstart-input>input:focus::placeholder,.ampstart-input>select:focus::placeholder,.ampstart-input>textarea:focus::placeholder{color:transparent}.ampstart-input>input:not(:placeholder-shown):not([disabled])+label,.ampstart-input>select:not(:placeholder-shown):not([disabled])+label,.ampstart-input>textarea:not(:placeholder-shown):not([disabled])+label{opacity:1}.ampstart-input>input:focus+label,.ampstart-input>select:focus+label,.ampstart-input>textarea:focus+label{-webkit-animation-name:a;animation-name:a}@-webkit-keyframes a{to{opacity:1}}@keyframes a{to{opacity:1}}.ampstart-input>label:after{content:"";height:2px;position:absolute;bottom:0;left:45%;background:#003f93;-webkit-transition:.2s;transition:.2s;-webkit-transition-timing-function:cubic-bezier(.4,0,.2,1);transition-timing-function:cubic-bezier(.4,0,.2,1);visibility:hidden;width:10px}.ampstart-input>input:focus+label:after,.ampstart-input>select:focus+label:after,.ampstart-input>textarea:focus+label:after{left:0;width:100%;visibility:visible}.ampstart-input>input[type=search]{-webkit-appearance:none;-moz-appearance:none;appearance:none}.ampstart-input>input[type=range]{border-bottom:0}.ampstart-input>input[type=range]+label:after{display:none}.ampstart-input>select{-webkit-appearance:none;-moz-appearance:none;appearance:none}.ampstart-input>select+label:before{content:"⌄";line-height:1.5rem;position:absolute;right:5px;zoom:2;top:0;bottom:0;color:#003f93}.ampstart-input-chk,.ampstart-input-radio{width:auto;color:#4a4a4a}.ampstart-input input[type=checkbox],.ampstart-input input[type=radio]{margin-top:0;-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border:1px solid #003f93;vertical-align:middle;margin-right:.5rem;text-align:center}.ampstart-input input[type=radio]{border-radius:20px}.ampstart-input input[type=checkbox]:not([disabled])+label,.ampstart-input input[type=radio]:not([disabled])+label{pointer-events:auto;-webkit-animation:none;animation:none;vertical-align:middle;opacity:1;cursor:pointer}.ampstart-input input[type=checkbox]+label:after,.ampstart-input input[type=radio]+label:after{display:none}.ampstart-input input[type=checkbox]:after,.ampstart-input input[type=radio]:after{position:absolute;top:0;left:0;bottom:0;right:0;content:" ";line-height:1.4rem;vertical-align:middle;text-align:center;background-color:#fff}.ampstart-input input[type=checkbox]:checked:after{background-color:#003f93;color:#fff;content:"✓"}.ampstart-input input[type=radio]:checked{background-color:#fff}.ampstart-input input[type=radio]:after{top:3px;bottom:3px;left:3px;right:3px;border-radius:12px}.ampstart-input input[type=radio]:checked:after{content:"";font-size:3rem;background-color:#003f93}.ampstart-input>label,_:-ms-lang(x){opacity:1}.ampstart-input>input:-ms-input-placeholder,_:-ms-lang(x){color:transparent}.ampstart-input>input::placeholder,_:-ms-lang(x){color:transparent}.ampstart-input>input::-ms-input-placeholder,_:-ms-lang(x){color:transparent}.ampstart-input>select::-ms-expand{display:none}.ampstart-headerbar{background-color:#fff;color:#000;z-index:999;box-shadow:0 0 5px 2px rgba(0,0,0,.1)}.ampstart-headerbar+:not(amp-sidebar),.ampstart-headerbar+amp-sidebar+*{margin-top:3.5rem}.ampstart-headerbar-nav .ampstart-nav-item{padding:0 1rem;background:transparent;opacity:.8}.ampstart-headerbar-nav{line-height:3.5rem}.ampstart-nav-item:active,.ampstart-nav-item:focus,.ampstart-nav-item:hover{opacity:1} margin-right: 5px;}.ampstart-dropdown>[expanded]>header:after{content:"–"}.absolute .ampstart-dropdown-items{z-index:200}.ampstart-dropdown-item{background-color:#000;color:#003f93;opacity:.9}.ampstart-dropdown-item:active,.ampstart-dropdown-item:hover{opacity:1}.ampstart-footer{background-color:#fff;color:#000;padding-top:5rem;padding-bottom:5rem}.ampstart-footer .ampstart-icon{fill:#000}.ampstart-footer .ampstart-social-follow li:last-child{margin-right:0}.ampstart-image-fullpage-hero{color:#fff}.ampstart-fullpage-hero-heading-text,.ampstart-image-fullpage-hero .ampstart-image-credit{-webkit-box-decoration-break:clone;box-decoration-break:clone;background:#000;padding:0 1rem .2rem}.ampstart-image-fullpage-hero>amp-img{max-height:calc(100vh - 3.5rem)}.ampstart-image-fullpage-hero>amp-img img{-o-object-fit:cover;object-fit:cover}.ampstart-fullpage-hero-heading{line-height:3.5rem}.ampstart-fullpage-hero-cta{background:transparent}.ampstart-readmore{background:-webkit-linear-gradient(bottom,rgba(0,0,0,.65),transparent);background:linear-gradient(0deg,rgba(0,0,0,.65) 0,transparent);color:#fff;margin-top:5rem;padding-bottom:3.5rem}.ampstart-readmore:after{display:block;content:"⌄";font-size:2rem}.ampstart-readmore-text{background:#000}@media (min-width:52.06rem){.ampstart-image-fullpage-hero>amp-img{height:60vh}}.ampstart-image-heading{color:#fff;background:-webkit-linear-gradient(bottom,rgba(0,0,0,.65),transparent);background:linear-gradient(0deg,rgba(0,0,0,.65) 0,transparent)}.ampstart-image-heading>*{margin:0}amp-carousel .ampstart-image-with-heading{margin-bottom:0}.ampstart-image-with-caption figcaption{color:#4f4f4f;line-height:1.125rem}amp-carousel .ampstart-image-with-caption{margin-bottom:0}.ampstart-input{max-width:100%;width:300px;min-width:100px;font-size:1rem;line-height:1.5rem}.ampstart-input [disabled],.ampstart-input [disabled]+label{opacity:.5}.ampstart-input [disabled]:focus{outline:0}.ampstart-input>input,.ampstart-input>select,.ampstart-input>textarea{width:100%;margin-top:1rem;line-height:1.5rem;border:0;border-radius:0;border-bottom:1px solid #4a4a4a;background:none;color:#4a4a4a;outline:0}.ampstart-input>label{color:#003f93;pointer-events:none;text-align:left;font-size:.875rem;line-height:1rem;opacity:0;-webkit-animation:.2s;animation:.2s;-webkit-animation-timing-function:cubic-bezier(.4,0,.2,1);animation-timing-function:cubic-bezier(.4,0,.2,1);-webkit-animation-fill-mode:forwards;animation-fill-mode:forwards}.ampstart-input>input:focus,.ampstart-input>select:focus,.ampstart-input>textarea:focus{outline:0}.ampstart-input>input:focus::-webkit-input-placeholder,.ampstart-input>select:focus::-webkit-input-placeholder,.ampstart-input>textarea:focus::-webkit-input-placeholder{color:transparent}.ampstart-input>input:focus::-moz-placeholder,.ampstart-input>select:focus::-moz-placeholder,.ampstart-input>textarea:focus::-moz-placeholder{color:transparent}.ampstart-input>input:focus:-ms-input-placeholder,.ampstart-input>select:focus:-ms-input-placeholder,.ampstart-input>textarea:focus:-ms-input-placeholder{color:transparent}.ampstart-input>input:focus::placeholder,.ampstart-input>select:focus::placeholder,.ampstart-input>textarea:focus::placeholder{color:transparent}.ampstart-input>input:not(:placeholder-shown):not([disabled])+label,.ampstart-input>select:not(:placeholder-shown):not([disabled])+label,.ampstart-input>textarea:not(:placeholder-shown):not([disabled])+label{opacity:1}.ampstart-input>input:focus+label,.ampstart-input>select:focus+label,.ampstart-input>textarea:focus+label{-webkit-animation-name:a;animation-name:a}@-webkit-keyframes a{to{opacity:1}}@keyframes a{to{opacity:1}}.ampstart-input>label:after{content:"";height:2px;position:absolute;bottom:0;left:45%;background:#003f93;-webkit-transition:.2s;transition:.2s;-webkit-transition-timing-function:cubic-bezier(.4,0,.2,1);transition-timing-function:cubic-bezier(.4,0,.2,1);visibility:hidden;width:10px}.ampstart-input>input:focus+label:after,.ampstart-input>select:focus+label:after,.ampstart-input>textarea:focus+label:after{left:0;width:100%;visibility:visible}.ampstart-input>input[type=search]{-webkit-appearance:none;-moz-appearance:none;appearance:none}.ampstart-input>input[type=range]{border-bottom:0}.ampstart-input>input[type=range]+label:after{display:none}.ampstart-input>select{-webkit-appearance:none;-moz-appearance:none;appearance:none}.ampstart-input>select+label:before{content:"⌄";line-height:1.5rem;position:absolute;right:5px;zoom:2;top:0;bottom:0;color:#003f93}.ampstart-input-chk,.ampstart-input-radio{width:auto;color:#4a4a4a}.ampstart-input input[type=checkbox],.ampstart-input input[type=radio]{margin-top:0;-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border:1px solid #003f93;vertical-align:middle;margin-right:.5rem;text-align:center}.ampstart-input input[type=radio]{border-radius:20px}.ampstart-input input[type=checkbox]:not([disabled])+label,.ampstart-input input[type=radio]:not([disabled])+label{pointer-events:auto;-webkit-animation:none;animation:none;vertical-align:middle;opacity:1;cursor:pointer}.ampstart-input input[type=checkbox]+label:after,.ampstart-input input[type=radio]+label:after{display:none}.ampstart-input input[type=checkbox]:after,.ampstart-input input[type=radio]:after{position:absolute;top:0;left:0;bottom:0;right:0;content:" ";line-height:1.4rem;vertical-align:middle;text-align:center;background-color:#fff}.ampstart-input input[type=checkbox]:checked:after{background-color:#003f93;color:#fff;content:"✓"}.ampstart-input input[type=radio]:checked{background-color:#fff}.ampstart-input input[type=radio]:after{top:3px;bottom:3px;left:3px;right:3px;border-radius:12px}.ampstart-input input[type=radio]:checked:after{content:"";font-size:3rem;background-color:#003f93}.ampstart-input>label,_:-ms-lang(x){opacity:1}.ampstart-input>input:-ms-input-placeholder,_:-ms-lang(x){color:transparent}.ampstart-input>input::placeholder,_:-ms-lang(x){color:transparent}.ampstart-input>input::-ms-input-placeholder,_:-ms-lang(x){color:transparent}.ampstart-input>select::-ms-expand{display:none}.ampstart-headerbar{background-color:#fff;color:#000;z-index:999;box-shadow:0 0 5px 2px rgba(0,0,0,.1)}.ampstart-headerbar+:not(amp-sidebar),.ampstart-headerbar+amp-sidebar+*{margin-top:3.5rem}.ampstart-headerbar-nav .ampstart-nav-item{padding:0 1rem;background:transparent;opacity:.8}.ampstart-headerbar-nav{line-height:3.5rem}.ampstart-nav-item:active,.ampstart-nav-item:focus,.ampstart-nav-item:hover{opacity:1} .ampstart-navbar-trigger:focus{outline:none}.ampstart-nav a,.ampstart-navbar-trigger,.ampstart-sidebar-faq a{cursor:pointer;text-decoration:none}.ampstart-nav .ampstart-label{color:inherit} .ampstart-navbar-trigger{line-height:3.5rem;font-size:2rem;background: #01507f;color: #fff; padding: 0 .5rem;} .ampstart-headerbar-nav{-webkit-box-flex:1;-ms-flex:1;flex:1}.ampstart-nav-search{-webkit-box-flex:0.5;-ms-flex-positive:0.5;flex-grow:0.5}.ampstart-headerbar .ampstart-nav-search:active,.ampstart-headerbar .ampstart-nav-search:focus,.ampstart-headerbar .ampstart-nav-search:hover{box-shadow:none}.ampstart-nav-search>input{border:none;border-radius:3px;line-height:normal}.ampstart-nav-dropdown{min-width:200px}.ampstart-nav-dropdown amp-accordion header{background-color:#fff;border:none}.ampstart-nav-dropdown amp-accordion ul{background-color:#fff}.ampstart-nav-dropdown .ampstart-dropdown-item,.ampstart-nav-dropdown .ampstart-dropdown>section>header{background-color:#fff;color:#000}.ampstart-nav-dropdown .ampstart-dropdown-item{color:#003f93}.ampstart-sidebar{background-color:#fff;color:#000;min-width:300px;width:300px}.ampstart-sidebar .ampstart-icon{fill:#003f93}.ampstart-sidebar-header{line-height:3.5rem;min-height:3.5rem}.ampstart-sidebar .ampstart-dropdown-item,.ampstart-sidebar .ampstart-dropdown header,.ampstart-sidebar .ampstart-faq-item,.ampstart-sidebar .ampstart-nav-item,.ampstart-sidebar .ampstart-social-follow{margin:0 0 2rem}.ampstart-sidebar .ampstart-nav-dropdown{margin:0}.ampstart-sidebar .ampstart-navbar-trigger{line-height:inherit}.ampstart-navbar-trigger svg{pointer-events:none}.ampstart-related-article-section{border-color:#4a4a4a}.ampstart-related-article-section .ampstart-heading{color:#4a4a4a;font-weight:400}.ampstart-related-article-readmore{color:#000;letter-spacing:0}.ampstart-related-section-items>li{border-bottom:1px solid #4a4a4a}.ampstart-related-section-items>li:last-child{border:none}.ampstart-related-section-items .ampstart-image-with-caption{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap;-webkit-box-align:center;-ms-flex-align:center;align-items:center;margin-bottom:0}.ampstart-related-section-items .ampstart-image-with-caption>amp-img,.ampstart-related-section-items .ampstart-image-with-caption>figcaption{-webkit-box-flex:1;-ms-flex:1;flex:1}.ampstart-related-section-items .ampstart-image-with-caption>figcaption{padding-left:1rem}@media (min-width:40.06rem){.ampstart-related-section-items>li{border:none}.ampstart-related-section-items .ampstart-image-with-caption>figcaption{padding:1rem 0}.ampstart-related-section-items .ampstart-image-with-caption>amp-img,.ampstart-related-section-items .ampstart-image-with-caption>figcaption{-ms-flex-preferred-size:100%;flex-basis:100%}}.ampstart-social-box{display:-webkit-box;display:-ms-flexbox;display:flex}.ampstart-social-box>amp-social-share{background-color:#000}.ampstart-icon{fill:#003f93}.ampstart-input{width:100%}main .ampstart-social-follow{margin-left:auto;margin-right:auto;width:315px}main .ampstart-social-follow li{-webkit-transform:scale(1.8);transform:scale(1.8)}h1+.ampstart-byline time{font-size:10px;font-weight:400} .titlearticle{font-size: 22px;line-height: normal;font-weight: bold;} .undertitle{font-size: 15px;line-height: normal;font-weight: bold;} .socialshare{text-align:center;} .news {color:#014f7d;} .economics {color:#346957;} .culture {color:#c12d45;} .entertainment {color:#3c7bb5;} .lifestyle {color:#56386a;} .sports {color:#cf6921;} .newmedia {color:#51a2d4;} .food {color:#ffbf00;} .videos {color:#51a2d4;} .leftpos {position:absolute;left:0;} html{position:static} .row {display: flex;flex-wrap: wrap;} ul.amp-social-share li a svg.icon-facebook {background-color: #3b5998} ul.amp-social-share li a svg.icon-twitter{background-color:#1da1f2;} ul.amp-social-share li a svg.icon-google-plus{background-color:#db4437;} ul.amp-social-share li a svg.icon-linkedin{background-color:#0077B5} ul.amp-social-share li a svg.icon-pinterest{background-color:#bd081c;} ul.amp-social-share li a svg.icon-reddit{background-color: #FF4500;} .amp-social-share-email{background-color: #0884f9;} ul.amp-social-share li a svg.icon-whatsapp{background-color: #25d366;} ul.amp-social-share li a svg.icon-comments-o{background-color:#2e9fff;} .socialshare {background: #eee;padding: .5rem;} .socialshare amp-social-share{border-radius: .2rem;} .contentarticle img{width:100%; height:auto;} .recipe-popular-articles h2 {text-align:center; background:#01507f;font-size: 18px;color:#fff;} .recipe-popular-articles h3 {font-size: 16px; line-height: normal;} .addcom h2{background: #ccc;font-size: 18px;} .comms h2{color: #fff;background: #01507f;font-size: 20px;} .combloc {background: #efefef;border-bottom: 1px dashed #bbb;} .combloc h5 {color:#002d74; font-size: 16px;} .combloc span {color:#c20000;} .combloc time {font-size:12px;} .ampstart-nav-link {padding-right:1rem;} .discText {color: #c20000;font-size: 16px;font-family: yakout w20 bold;} .author{font-weight: bold;} p{line-height:24px;} .redcolor{color:#e74c3c;} .caption{background: rgba(0,0,0,.77);left: 0;right: 0;bottom: 0;padding-top: 20px;padding-bottom: 20px;color: #fff;text-align: center;} .telegram-container {box-sizing: border-box;margin: 20px;padding: 25px;} .telegram-content {border: 1px solid #0084ff;color: #333;font-family: Arial,sans-serif;font-size: 18px;line-height: 28px;padding: 20px 20px 20px 20px;background-color: rgb(255,255,255);} .whatsapp-container {box-sizing: border-box;margin: 20px;padding: 25px;} .whatsapp-content {border: 1px solid #2AB200;color: #333;font-family: Arial,sans-serif;font-size: 18px;line-height: 28px;padding: 20px 20px 20px 20px;background-color: rgb(255,255,255);} .imageCont {float: left;width: 50px;height: 50px;} .imageContelegram {background:url(https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Telegram_logo.svg/120px-Telegram_logo.svg.png) no-repeat center / contain;padding-top:5%;margine:20px;display:block;cursor:pointer;} .imageConwhatsapp {background:url(https://s1.elaph.com/resources/ar/img/whatsapp.png) no-repeat center / contain;padding-top:5%;margine:20px;display:block;cursor:pointer;} .imageConInstagram {background:url(https://s1.elaph.com/resources/ar/img/instagram.png) no-repeat center / contain;padding-top:5%;margine:20px;display:block;cursor:pointer;} .imageConTwitter {background:url(https://s1.elaph.com/resources/ar/img/twitter.png) no-repeat center / contain;padding-top:5%;margine:20px;display:block;cursor:pointer;} #audiozone{margin: 20px;padding: 25px 25px 0px 25px;} #audiozone .azone{border: 1px solid #3578e5;padding: 20px;} #audiozone .azone h6{color: #01507F;font-size: 16px;} #articlePlay{width: 100%;height: 54px;margin-top: 10px;} .btm_ad_mob_fixed{position:fixed;bottom:0;text-align:center;background-color:#efefef;width:100%;z-index:999}
قرائنا من مستخدمي تلغرام يمكنكم الآن متابعة آخر الأخبار مجاناً من خلال تطبيق تلغرامإضغط هنا للإشتراك إيلاف من لندن: وجد علماء صينيون أن نوعاً من الصفراء ينتجه الكبد قد يكون المفتاح السري لإطالة العمر.
وبحسب صحيفة "الإندبندنت" البريطانية، فقد أشار العلماء إلى أن تأثير هذا النوع من الصفراء مماثل لتأثير تقييد السعرات الحرارية في تعزيز طول العمر.
وفي دراسة جديدة نُشرت اليوم (الخميس)، قيّم العلماء تأثيرات حمض الليثوكوليك الصفراوي، في الفئران المعدلة وراثياً بأنسجة بشرية وقارنوها بتقييد السعرات الحرارية.
ووجد العلماء أن حمض الليثوكوليك، الذي ينتج في الكبد بشكل طبيعي، يمكن أن يساعد في تجديد العضلات ويعزز قوة القبضة والقدرة على الجري.
بالإضافة إلى ذلك، ينشط هذا الحمض جزيئاً رئيسياً يشارك في عملية التمثيل الغذائي يسمى بروتين كيناز المنشط، الذي يعتبر مفتاح الشيخوخة، لأنه ينظم عمليات مثل الالتهاب وتنكس الأعصاب.
وأكد العلماء أن تقييد السعرات الحرارية يؤدي أيضاً إلى تنشيط بروتين كيناز المنشط. فقد أخذ العلماء مصل الدم من الفئران التي خضعت لتقييد السعرات الحرارية لمدة أربعة أشهر ووضعوه في القوارض التي تتغذى على نظام غذائي عادي. ووجدوا أن المصل المحقون أدى إلى تنشيط البروتين في كبد وعضلات الفئران.
وأجرى العلماء أيضاً تجارب على ذباب الفاكهة والديدان الخيطية المسماة C elegans؛ حيث قاموا بحقنها بحمض الليثوكوليك، وقد وجدوا أن الحمض الصفراوي ينشط بروتين كيناز المنشط ويحفز تأثيرات مضادة للشيخوخة لديها.
كما لاحظ الباحثون أن حمض الليثوكوليك أدى إلى زيادة متوسط عمر الديدان الخيطية من 22 إلى 27 يوماً والذباب بمقدار 4 إلى 5 أيام. وخلص العلماء في الدراسة إلى أن "حمض الليثوكوليك وحده يمكن أن يمنح للشخص فوائد مضادة للشيخوخة".
ويأمل العلماء أن يجروا دراسات أخرى للتأكد من النتائج ومدى دقتها على البشر من مختلف الفئات العمرية وتحديد الجرعة المناسبة من حمض الكبد التي يمكن حقنها بأجسام الأشخاص لإطالة أعمارهم.
التعليقات جميع التعليقات المنشورة تعبر عن رأي كتّابها ولا تعبر بالضرورة عن رأي إيلاف