Patients from the control ( no CPAP ) group had significantly increased concentrations of interleukin ( IL ) -@ , IL-@ , IL-@ , tumour necrosis factor-alpha , macrophage inflammatory protein ( MIP ) -@ , pulmonary and activation-regulated chemokine ( PARC ) , and IL-@ in the collapsed ( right ) lung when compared with patients from the CPAP group ( P < @ ) .