1.Emergent percutaneous transhepatic embolization of gastroesophageal varices for the treatment of acute upper gastrointestinal bleeding
Xiquan ZHANG ; Haijun LIU ; Yonghong LU ; Ge DONG ; Feng GUO ; Li LI ; Xinzhi LIU
Chinese Journal of General Surgery 1997;0(04):-
Objective To evaluate the effect of percutaneous transhepatic embolization of gastroesophageal varices on acute upper gastrointestinal bleeding in cirrhotic portal hypertensive patients. Methods Percutaneous transhepatic embolization was performed in 37 cases of acute upper gastrointestinal bleeding until varix thrombosed. Results Bleeding stopped in all patients. No technical complications occurred. During 1~38 months follow-up, variceal bleeding recurred in two cases in 3 months. One died of heart failure, five died of hepatic carcinoma in 6 months . Conclusion Percutaneous transhepatic embolization of gastroesophageal varices is a safe and effective treatment for acute upper gastrointestinal bleeding in portal hypertensive patients.
2.Lack of CFAP54 causes primary ciliary dyskinesia in a mouse model and human patients.
Xinyue ZHAO ; Haijun GE ; Wenshuai XU ; Chongsheng CHENG ; Wangji ZHOU ; Yan XU ; Junping FAN ; Yaping LIU ; Xinlun TIAN ; Kai-Feng XU ; Xue ZHANG
Frontiers of Medicine 2023;17(6):1236-1249
Primary ciliary dyskinesia (PCD) is a highly heterogeneous recessive inherited disorder. FAP54, the homolog of CFAP54 in Chlamydomonas reinhardtii, was previously demonstrated as the C1d projection of the central microtubule apparatus of flagella. A Cfap54 knockout mouse model was then reported to have PCD-relevant phenotypes. Through whole-exome sequencing, compound heterozygous variants c.2649_2657delinC (p. E883Dfs*47) and c.7312_7313insCGCAGGCTGAATTCTTGG (p. T2438delinsTQAEFLA) in a new suspected PCD-relevant gene, CFAP54, were identified in an individual with PCD. Two missense variants, c.4112A>C (p. E1371A) and c.6559C>T (p. P2187S), in CFAP54 were detected in another unrelated patient. In this study, a minigene assay was conducted on the frameshift mutation showing a reduction in mRNA expression. In addition, a CFAP54 in-frame variant knock-in mouse model was established, which recapitulated the typical symptoms of PCD, including hydrocephalus, infertility, and mucus accumulation in nasal sinuses. Correspondingly, two missense variants were deleterious, with a dramatic reduction in mRNA abundance from bronchial tissue and sperm. The identification of PCD-causing variants of CFAP54 in two unrelated patients with PCD for the first time provides strong supportive evidence that CFAP54 is a new PCD-causing gene. This study further helps expand the disease-associated gene spectrum and improve genetic testing for PCD diagnosis in the future.
Mice
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Animals
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Humans
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Male
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Kartagener Syndrome/metabolism*
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Cilia/metabolism*
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Semen
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Genetic Testing
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RNA, Messenger
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Mutation