[Cavernostomy for Extensive Intrapulmonary Cavitary Abscesses That Turned into Destroyed Lungs].

Surgical resection of the infected lung with curative intent is the treatment of choice for lung abscesses that are difficult to control with medical treatment alone. However, lung resection is considered difficult in some cases. Herein, we report two cases of destroyed lungs with severe symptoms, for which palliative cavernostomy was performed instead of infected lung resection. Case 1 was a 45-year-old man who had granulomatosis with polyangiitis in both lungs. Steroid pulse and immunosuppression therapies were repeated, resulting in a huge, destroyed lung on the right side with chronic necrotizing bilateral aspergillosis, causing severe symptoms. Considering the bilateral spread and extension of the cavity lesions, cavernostomy was performed for the destroyed right lung. Case 2 was a 73-year-old woman who had undergone a left lower lobectomy for a metastatic lung tumor and developed a destroyed lung with severe symptoms in the residual left upper lobe caused by a non-tuberculous mycobacterial infection. Since a completion pneumonectomy with curative intent was considered too invasive for her poor general condition, cavernostomy was performed for the destroyed lung. Palliative operations significantly relieved the severe symptoms and improved the general conditions of these patients, enabling outpatient follow up.

Distribution of single nucleotide polymorphisms in the CXCR1 gene and association with calf diseases in Japanese Black cattle.

The chemokine (C-X-C) receptor 1 (CXCR1) expressed on the neutrophil surfaces interacts primarily with interleukin-8 (IL-8) and has an important role in immune response. Two interesting single nucleotide polymorphisms (SNPs), SNP CXCR1+777G>C and SNP CXCR1-1768T>A, that exhibit an association with subclinical mastitis and milk quality in dairy cattle, respectively, have been reported in the bovine CXCR1 gene. The aim of this study was to demonstrate the presence of the two SNPs in the CXCR1 gene of Japanese Black cattle and examine the association between the SNPs and clinical diseases including intestinal and respiratory diseases in calves. Genotyping of the SNPs in healthy Japanese Black cattle showed that the SNPs were also present in Japanese Black cattle with gene frequencies of 0.37 and 0.15 for the C-type allele in SNP CXCR1+777 and for the A-type allele in SNP CXCR1-1768, respectively. Statistical analysis of the genotype distribution of the SNPs in the bovine CXCR1 gene in healthy and clinical intestinal or respiratory diseased Japanese Black cattle indicated no significant association of the SNPs with clinical diseases in the calves. However, a significant correlation of the number of A alleles in SNP CXCR1-1768 with white blood cell (WBC) and platelet counts was found in the disease group. It is possible that the SNP in the bovine CXCR1 gene plays a role in modulating the hematological profile of WBC and platelet counts.