progne

  def initialize(text)
    @text = text
  end

  def inspect
    "#<#{self.class} #{text}>"
  end

  def ==(other)
    other.is_a?(Word) && text == other.text
  end

  def initialize(text) = @text = text
  def inspect = "#<#{self.class} #{text}>"
  def ==(other) = other.is_a?(Word) && text == other.text

  define_method(:inspect) { |text| "#<#{self.class} #{text}>" }

  Immune function analysis displayed significantly lower phagocytosis of monocytes and granulocytes in an older vegetarian population (vs. older nonvegetarians (P < 0.05, P < 0.001). Similar effect of diet was observed as decreased phagocytic activity of granulocytes in younger vegetarians. Regardless of age, respiratory burst of phagocytic cells was also significantly decreased in women vegetarians versus nonvegetarians (P < 0.05, P < 0.001). Older vegetarians revealed significantly suppressed proliferative response of T-lymphocytes to mitogens (P < 0.001).

  In conclusion, our data indicate that a vegetarian diet might have a possible impact on human immune response.