Write a paragraph for an article about correlation with alopecia and pulmonary

Correlation between alopecia and pulmonary hypertension in patients with systemic lupus erythematosus (SLE):

Alopecia can occur as a manifestation of systemic lupus erythematosus, and it is listed among other systemic diseases that may cause hair loss patterns, including telogen effluvium and scarring alopecia associated with lupus-related skin involvement NICE CKS,NICE CKS. Pulmonary hypertension is a recognized complication in SLE, though it is usually associated with disease activity and systemic vascular involvement rather than directly linked to alopecia SmPC AVONEX.

Current evidence does not establish a direct or functional correlation between alopecia and pulmonary hypertension specifically in SLE patients. Instead, alopecia and pulmonary hypertension seem to represent separate clinical features related to different pathogenic processes within the multisystem nature of lupus. Alopecia typically arises from autoimmune or inflammatory mechanisms affecting the scalp or hair follicles, sometimes overlapping with conditions such as discoid lupus erythematosus or alopecia areata, which can coexist with SLE but are distinct entities NICE CKS,Młyńska et al. 2026. Pulmonary hypertension in SLE is mainly linked to vascular inflammation, endothelial dysfunction, and thrombotic processes often exacerbated by factors including antiphospholipid antibodies and chronic immune activation Liu et al. 2023 Santacruz et al. 2026.

Indirectly, both alopecia and pulmonary hypertension reflect the systemic autoimmune dysregulation characteristic of SLE. For example, immunological factors, inflammatory cytokines, and possibly JAK-STAT signaling pathways contribute to disease manifestations such as alopecia areata and pulmonary vascular pathology, suggesting that immune dysregulation underlies both Młyńska et al. 2026. However, no clear epidemiological or pathophysiological data directly link alopecia as a risk factor or marker for pulmonary hypertension in SLE.

Therefore, while alopecia may be a visible sign of cutaneous or systemic lupus activity, and pulmonary hypertension a serious cardiovascular complication, their occurrence in SLE patients represents multifaceted disease involvement rather than a specifically correlated clinical association.