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Global • 2026-11-02, 03:19 GMT • ~1 min read

A few days of fatty food can leave lasting 'memory' in inflamed tissue, study finds

تحقیق: چند دن کی چکنائی والی خوراک سوجن والے ٹشو میں دیرپا 'یادداشت' چھوڑ سکتی ہے

अध्ययन: कुछ दिनों का वसायुक्त भोजन सूजन वाले ऊतक में स्थायी 'याददाश्त' छोड़ सकता है

A few days of fatty food can leave lasting 'memory' in inflamed tissue, study finds

Key points

اہم نکات

मुख्य बातें

  • A study in the journal Nature has found that what mice ate for just a few days around the start of an illness changed how badly their tissue reacted, and left a lasting imprint.
  • Researchers at the University of California, San Francisco, fed mice a high-fat diet for a short time before triggering skin inflammation, and the lean mice reacted as severely as obese mice.
  • Weeks later, after returning to a low-fat diet and full recovery, the same tissue flared up far more strongly when irritated again, because memory immune cells had stayed behind.
  • جریدے نیچر میں شائع ایک تحقیق میں معلوم ہوا ہے کہ بیماری کے آغاز کے ارد گرد صرف چند دن کی خوراک نے چوہوں کے ٹشو کے ردعمل کو بدل دیا اور دیرپا اثر چھوڑا۔ کیلیفورنیا یونیورسٹی، سان فرانسسکو کے محققین نے جلد کی سوجن پیدا کرنے سے پہلے چوہوں کو مختصر وقت کے لیے زیادہ چکنائی والی خوراک دی، اور دبلے چوہوں کا ردعمل بھی موٹے چوہوں جتنا شدید ہوا۔ ہفتوں بعد، کم چکنائی والی خوراک پر واپس آنے اور مکمل صحت یابی کے بعد، وہی ٹشو دوبارہ چھیڑنے پر کہیں زیادہ شدت سے سوج گیا، کیونکہ یادداشت والے مدافعتی خلیے وہیں رہ گئے تھے۔ پھیپھڑوں میں بھی ایسا ہی بڑھا ہوا ردعمل دیکھا گیا۔ محققین نے خبردار کیا ہے کہ چوہوں کی خوراک انسانوں کی خوراک سے براہ راست نہیں ملتی، لیکن ان کا کہنا ہے کہ خوراک مدافعتی نظام پر صرف طویل مدتی وزن کے ذریعے نہیں، بلکہ فوری طور پر بھی اثر ڈال سکتی ہے۔
  • नेचर पत्रिका में प्रकाशित एक अध्ययन में पाया गया है कि बीमारी की शुरुआत के आसपास सिर्फ कुछ दिनों तक खाए गए भोजन ने चूहों के ऊतकों की प्रतिक्रिया को बदल दिया और स्थायी प्रभाव छोड़ा। कैलिफोर्निया विश्वविद्यालय, सैन फ्रांसिस्को के शोधकर्ताओं ने त्वचा में सूजन पैदा करने से पहले चूहों को थोड़े समय के लिए उच्च वसा वाला आहार दिया, और दुबले चूहों की प्रतिक्रिया भी मोटे चूहों जितनी गंभीर हुई। हफ्तों बाद, कम वसा वाले आहार पर लौटने और पूरी तरह ठीक होने के बाद, वही ऊतक दोबारा छेड़ने पर कहीं अधिक तीव्रता से सूज गया, क्योंकि याददाश्त वाली प्रतिरक्षा कोशिकाएं वहीं रह गई थीं। फेफड़ों में भी ऐसा ही बढ़ा हुआ जवाब देखा गया। शोधकर्ताओं ने चेतावनी दी है कि चूहों का आहार मनुष्यों के आहार से सीधे नहीं मिलता, लेकिन उनका कहना है कि आहार प्रतिरक्षा प्रणाली पर सिर्फ लंबे समय के वज़न के ज़रिए नहीं, बल्कि तुरंत भी असर डाल सकता है।

A study in the journal Nature has found that what mice ate for just a few days around the start of an illness changed how badly their tissue reacted, and left a lasting imprint. Researchers at the University of California, San Francisco, fed mice a high-fat diet for a short time before triggering skin inflammation, and the lean mice reacted as severely as obese mice. Weeks later, after returning to a low-fat diet and full recovery, the same tissue flared up far more strongly when irritated again, because memory immune cells had stayed behind. A similar heightened response was seen in the lungs. The researchers caution that mouse diets do not map neatly onto human eating, but say the work shows diet can act on the immune system in real time, not only through long-term weight.

جریدے نیچر میں شائع ایک تحقیق میں معلوم ہوا ہے کہ بیماری کے آغاز کے ارد گرد صرف چند دن کی خوراک نے چوہوں کے ٹشو کے ردعمل کو بدل دیا اور دیرپا اثر چھوڑا۔ کیلیفورنیا یونیورسٹی، سان فرانسسکو کے محققین نے جلد کی سوجن پیدا کرنے سے پہلے چوہوں کو مختصر وقت کے لیے زیادہ چکنائی والی خوراک دی، اور دبلے چوہوں کا ردعمل بھی موٹے چوہوں جتنا شدید ہوا۔ ہفتوں بعد، کم چکنائی والی خوراک پر واپس آنے اور مکمل صحت یابی کے بعد، وہی ٹشو دوبارہ چھیڑنے پر کہیں زیادہ شدت سے سوج گیا، کیونکہ یادداشت والے مدافعتی خلیے وہیں رہ گئے تھے۔ پھیپھڑوں میں بھی ایسا ہی بڑھا ہوا ردعمل دیکھا گیا۔ محققین نے خبردار کیا ہے کہ چوہوں کی خوراک انسانوں کی خوراک سے براہ راست نہیں ملتی، لیکن ان کا کہنا ہے کہ خوراک مدافعتی نظام پر صرف طویل مدتی وزن کے ذریعے نہیں، بلکہ فوری طور پر بھی اثر ڈال سکتی ہے۔

नेचर पत्रिका में प्रकाशित एक अध्ययन में पाया गया है कि बीमारी की शुरुआत के आसपास सिर्फ कुछ दिनों तक खाए गए भोजन ने चूहों के ऊतकों की प्रतिक्रिया को बदल दिया और स्थायी प्रभाव छोड़ा। कैलिफोर्निया विश्वविद्यालय, सैन फ्रांसिस्को के शोधकर्ताओं ने त्वचा में सूजन पैदा करने से पहले चूहों को थोड़े समय के लिए उच्च वसा वाला आहार दिया, और दुबले चूहों की प्रतिक्रिया भी मोटे चूहों जितनी गंभीर हुई। हफ्तों बाद, कम वसा वाले आहार पर लौटने और पूरी तरह ठीक होने के बाद, वही ऊतक दोबारा छेड़ने पर कहीं अधिक तीव्रता से सूज गया, क्योंकि याददाश्त वाली प्रतिरक्षा कोशिकाएं वहीं रह गई थीं। फेफड़ों में भी ऐसा ही बढ़ा हुआ जवाब देखा गया। शोधकर्ताओं ने चेतावनी दी है कि चूहों का आहार मनुष्यों के आहार से सीधे नहीं मिलता, लेकिन उनका कहना है कि आहार प्रतिरक्षा प्रणाली पर सिर्फ लंबे समय के वज़न के ज़रिए नहीं, बल्कि तुरंत भी असर डाल सकता है।

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