La nueva hipótesis parte de los resultados obtenidos en ratones. Los científicos observaron que los anticuerpos transmitidos por la madre a su camada tenían un peso fundamental en las probabilidades de que los hijos desarrollaran una enfermedad similar a la diabetes tipo 1.
En dos de los experimentos utilizaron hembras que presentaban la enfermedad pero eran incapaces de producir anticuerpos contra la insulina. Los hijos de estas hembras presentaban menos probabilidades de desarrollar diabetes. Efectos preventivos similares se observaron cuando los investigadores implantaron embriones genéticamente susceptibles a la enfermedad en otras hembras no diabéticas.
En opinión de los científicos, estos hallazgos sugieren que los anticuerpos maternos desempeñan un papel importante en la activación anómala de los linfocitos T en personas susceptibles a desarrollar diabetes tipo 1.
No obstante, se trata de un descubrimiento que deberá corroborarse en futuros estudios, aunque de ser cierto podría ser útil pare prevenir algunos casos de diabetes en la infancia.
Webs Relacionadas
University of Pennsylvania
http://www.upenn.edu/
Nature Medicine
http://www.nature.com/
![IntraMed](data:image/svg+xml,<?xml version="1.0" encoding="UTF-8"?>%0A<svg id="Capa_1" xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="0 0 1080 315">%0A <defs>%0A <style>%0A .st0 {%0A fill-rule: evenodd;%0A }%0A%0A .st0, .st1 {%0A fill: %23002bc7;%0A }%0A%0A .st2 {%0A fill: %23fff;%0A }%0A </style>%0A </defs>%0A <g>%0A <circle class="st2" cx="141.5" cy="179.93" r="135.02"/>%0A <g>%0A <path class="st2" d="M350.28,126.97v106.62c0,7-4.04,11.22-10.41,11.22s-10.5-4.22-10.5-11.22v-106.62c0-7,4.13-11.22,10.5-11.22s10.41,4.22,10.41,11.22Z"/>%0A <path class="st2" d="M459.96,184.86v49.09c0,6.82-4.04,10.86-10.23,10.86s-10.14-4.04-10.14-10.86v-47.03c0-13.28-6.73-20.28-20.73-20.28-7.81,0-15.53,2.15-20.19,4.85v62.47c0,6.82-4.04,10.86-10.23,10.86s-10.14-4.04-10.14-10.86v-66.68c0-6.37,1.35-9.24,7.09-12.21,5.38-3.14,18.49-8.17,33.48-8.17,26.66,0,41.11,14.36,41.11,37.96Z"/>%0A <path class="st2" d="M505.83,137.92v10.68h24.14c7,0,10.59,3.59,10.59,9.42s-3.59,9.33-10.59,9.33h-24.14v45.05c0,9.78,3.86,14.09,12.74,14.09,4.76,0,8.08-1.08,10.77-1.98,2.15-.72,3.95-1.52,6.28-1.52,4.58,0,8.44,3.77,8.44,9.06s-3.14,8.08-7.99,9.96c-5.21,1.97-11.76,3.59-18.76,3.59-19.03,0-31.86-10.86-31.86-31.23v-76.47c0-6.82,3.95-10.77,10.14-10.77s10.23,3.95,10.23,10.77Z"/>%0A <path class="st2" d="M559.96,233.95v-55.73c0-19.3,11.76-31.32,30.69-31.32,6.01,0,11.22.72,15.17,1.89,5.83,1.61,9.87,4.67,9.87,10.32,0,6.28-4.22,9.87-8.44,9.87-1.97,0-3.41-.36-4.85-.72-3.05-.81-5.92-1.26-9.69-1.26-8.44,0-12.39,4.04-12.39,12.39v54.57c0,6.82-3.95,10.86-10.14,10.86s-10.23-4.04-10.23-10.86Z"/>%0A <path class="st2" d="M624.04,214.83c0-15.08,11.76-28.9,36.08-28.9,7.81,0,14.72.99,22.89,3.14v-7.45c0-10.86-5.74-16.25-20.28-16.25-6.37,0-12.74,1.62-16.69,3.23-2.69.99-5.21,1.88-7.45,1.88-4.76,0-8.53-3.68-8.62-8.71,0-4.22,2.24-7.54,7.81-9.69,6.19-2.6,15.8-5.21,26.48-5.21,24.5,0,38.41,11.04,38.41,35.27v46.13c0,3.68-.99,5.56-3.77,7.45-5.65,3.86-19.57,9.87-37.87,9.87-23.78,0-36.98-13.37-36.98-30.78ZM662.73,228.84c7.27,0,14.81-2.06,20.28-4.94v-20.19c-7.45-2.24-13.55-3.23-20.37-3.23-12.83,0-19.21,6.28-19.21,14.36,0,8.89,7.54,14,19.3,14Z"/>%0A <path class="st2" d="M724.12,235.12c0-.81.09-2.06.18-2.78l13.73-96.57c2.15-15.17,9.51-20.01,20.1-20.01,9.51,0,16.78,3.95,19.66,19.12l18.4,85.71c.45,1.62.72,2.33,1.98,2.33,1.35,0,1.7-.72,2.06-2.42l18.31-85.62c2.87-15.17,10.05-19.12,19.57-19.12,10.68,0,17.95,4.85,20.01,20.1l13.73,96.03c.18,1.44.27,2.24.27,3.32,0,5.84-3.95,9.6-9.69,9.6-6.55,0-10.14-3.5-10.86-10.05l-12.12-94.86c-.27-1.89-.72-2.51-1.88-2.51-.99,0-1.53.45-1.88,2.15l-19.57,88.22c-2.42,11.58-8.53,17.05-18.13,17.05-10.23,0-15.71-5.57-18.22-17.14l-19.48-88.04c-.45-1.62-.99-2.24-1.79-2.24-1.17,0-1.71.72-1.97,2.6l-11.85,94.78c-.81,6.64-4.31,10.05-10.41,10.05s-10.14-3.59-10.14-9.69Z"/>%0A <path class="st2" d="M891.08,208.91c-.63-6.73-.63-17.68-.09-23.96,2.06-22.17,18.04-37.87,42.18-37.87s39.67,16.06,39.67,39.67v5.3c0,9.87-1.97,11.31-10.86,11.31h-51.88c0,1.26,0,2.6.09,3.86.72,12.03,9.96,20.01,24.32,20.01,7.9,0,13.91-1.71,18.85-3.68,2.96-1.08,4.85-2.06,7.45-2.06,4.85,0,8.44,3.14,8.44,8.44.09,5.12-3.77,8.08-7.54,9.78-6.91,3.32-16.78,5.92-27.64,5.92-24.5,0-41.01-15.08-42.99-36.71ZM954,188.81c1.26-15.44-7.81-24.32-21.45-24.32s-21.54,8.98-22.35,22.08c0,.72-.09,1.53-.09,2.24h43.89Z"/>%0A <path class="st2" d="M1074.18,125.17v102.85c0,3.95-1.08,5.92-3.86,7.81-5.83,3.86-20.1,9.78-37.16,9.78-23.87,0-39.22-14.81-41.19-36.17-.72-7.27-.72-19.21,0-26.39,1.97-21.36,17.32-36.17,39.4-36.17,8.17,0,16.78,2.06,22.44,4.85v-26.57c0-6.82,3.95-10.86,10.23-10.86s10.14,4.04,10.14,10.86ZM1033.97,225.87c6.91,0,15.53-2.06,19.83-5.11v-49c-4.31-3.05-12.93-5.12-19.83-5.12-13.37,0-20.73,7.99-21.81,19.75-.54,6.55-.45,13.82,0,19.74,1.08,11.76,8.44,19.75,21.81,19.75Z"/>%0A </g>%0A <g>%0A <path class="st1" d="M101.42,217.17c0-.64.07-1.63.14-2.2l10.87-76.46c1.71-12.01,7.53-15.85,15.92-15.85,7.53,0,13.29,3.13,15.56,15.14l14.57,67.86c.36,1.28.57,1.85,1.56,1.85,1.07,0,1.35-.57,1.63-1.92l14.5-67.79c2.27-12.01,7.96-15.14,15.49-15.14,8.46,0,14.21,3.84,15.85,15.92l10.87,76.04c.14,1.14.21,1.78.21,2.63,0,4.62-3.13,7.6-7.67,7.6-5.19,0-8.03-2.77-8.6-7.96l-9.59-75.11c-.21-1.49-.57-1.99-1.49-1.99-.78,0-1.21.36-1.49,1.71l-15.49,69.85c-1.92,9.17-6.75,13.5-14.36,13.5-8.1,0-12.44-4.41-14.43-13.57l-15.42-69.71c-.36-1.28-.78-1.78-1.42-1.78-.92,0-1.35.57-1.56,2.06l-9.38,75.04c-.64,5.26-3.41,7.96-8.24,7.96s-8.03-2.84-8.03-7.67Z"/>%0A <path class="st1" d="M90.62,131.29v84.42c0,5.54-3.2,8.88-8.24,8.88s-8.31-3.34-8.31-8.88v-84.42c0-5.54,3.27-8.88,8.31-8.88s8.24,3.34,8.24,8.88Z"/>%0A </g>%0A <g>%0A <path class="st0" d="M74.36,202.14c19.92.79,54.3-4.62,92.4-15.33,58-16.32,102.67-38.77,99.76-50.15-2-7.85-26.05-8.39-59.77-2.65,23.98-2.82,37.51-1.37,39.11,4.9,2.82,11.03-37.79,32.76-93.95,48.56-1.26.35-2.51.7-3.76,1.04,0,0,0,0-.01,0-13.29,3.95-50.37,13.62-73.78,13.62Z"/>%0A <path class="st0" d="M191.55,191.02c-13.03,4.75-27.19,9.32-42.09,13.5-70.38,19.79-130.56,23.59-134.41,8.48-2.65-10.4,20.1-26.01,58.76-41.85-26.73,12.73-38.09,24.13-35.96,32.45,3.73,14.63,59.37,10.95,127.5-8.22,36.59-10.29,68.58-22.95,89.79-34.73-9.63,6.73-23.48,14.01-40.32,21.2-4.91,2.44-18.07,7.34-23.28,9.16Z"/>%0A </g>%0A </g>%0A</svg>%0A)