Pneumonitis during interferon and/or herbal drug therapy in patients with chronic active hepatitis

Abstract

P Pn ne eu um mo on ni it ti is s d du ur ri in ng g i in nt te er rf fe er ro on n a an nd d/ /o or r h he er rb ba al l d dr ru ug g t th he er ra ap py y i in n p pa at ti ie en nt ts s w wi it th h c ch hr ro on ni ic c a ac ct ti iv ve e h he ep pa at ti it ti is s ABSTRACT: We report four cases of acute pneumonitis due either to interferon, or a herbal drug, " "Sho-saiko-to" ", or both in combination, in patients with chronic active hepatitis, focusing on its pathogenesis and response to prednisolone therapy. These cases shared common clinical features: fever, dry cough, dyspnoea, hypoxaemia, diffuse infiltrates both on chest radiography and chest computed tomography, restrictive pulmonary functional impairment, and alveolitis on examination of transbronchial lung biopsy, all of which suggest acute interstitial pneumonia. Furthermore, lymphocytosis was observed in association with the dominant CD8+ T-cell subset in bronchoalveolar lavage fluid. A lymphocyte stimulation test using peripheral blood was positive to interferon in one case and to Sho-saiko-to in another. All patients responded to oral prednisolone therapy. Peripheral soluble interleukin-2 receptor levels decreased in parallel with improvement in the clinical course. All patients were free of symptoms with a follow-up of 1-3 yrs.We conclude that interferon-and/or Sho-saiko-to-induced acute pneumonitis may be due to allergic-immunological mechanisms rather than toxicity, and that peripheral levels of soluble interleukin-2 receptor appear to be good markers of disease activity.

A novel cause for bronchiolitis obliterans organizing pneumonia: exposure to paint aerosols in textile workshops

“…Typical examples of novel environmentally-related illnesses include: the toxic oil syndrome [45]; the L-tryptophan syndrome [46]; more recently, bronchiolitis obliterans caused by ingestion of the vegetable food supplement Sauropus androgynus [47][48][49] or by fumes from stoves [50,51]; and pulmonary infiltrates caused by the ingestion of medicinal herbs [52][53][54].…”

Complications of traditional Chinese/herbal medicines (TCM)—a guide for perplexed oncologists and other cancer caregivers

“…It may sometimes cause headache or tremor. Other reported toxicities include mastalgia [21], vaginal bleeding or metrorrhagia [32,70], hypertension [36], transient ischemic attacks [53], cerebral arteritis [77], and pneumonitis [42].…”

Mechanism of drug interaction between a Kampo medicine, byakkokaninjinto, and tetracycline in rats

“…Coadministration of St. John's wort, a herb extensively used as an antidepressant [7], potently inhibited the activities of major human drug-metabolizing enzymes [8]. There are also reports on Kampo medicines-Western medicines interaction represented by shosaikoto with interferon, which provoked interstitial pneumonia in humans [9].…”