The present review outlines the mechanisms, safety and efficacy of certain drugs that have been investigated for this purpose.Patients with spontaneous isolated superior mesenteric artery (SMA) dissection (SISMAD) usually present with acute or chronic abdominal pain and are admitted to the emergency or digestive diseases department to undergo auxiliary examinations, typically abdominal plain CT or contrast-enhanced CT (CECT). Plain CT is the most crucial examination in emergency radiology. An enlarged SMA diameter and perivascular fat stranding (PFS) on plain CT, though non-specific, may be the only indications for SISMAD. These results may be easily overlooked and the diagnosis of SISMAD may be missed. However, PFS around the SMA on CT may be the only indicator of the possible presence of SISMAD, particularly during the early stage when there are no massive changes in the vascular wall. The present study aimed to determine whether PFS surrounding the SMA on CT may help with the diagnosis of SISMAD by indicating the requirement for further examination. The data of 161 consecutive patients with SMA dissection who underwent abdominal CECT or underwent SMA CT angiography (CTA) after abdominal plain CT between February 2015 and February 2018 were retrospectively reviewed. SMA diameter, classification, PFS, complications, comorbidities and treatments were analyzed. The results demonstrated that SISMAD with PFS was significantly associated with admission type (emergency), clinical manifestations (abdominal pain), diagnostic modality and dissection subtype. On plain CT, PFS surrounding the SMA may be a marker for SISMAD, particularly in the emergency setting, and indicates the requirement for CTA examination.At the end of 2019, a new disease, similar to severe acute respiratory syndrome (SARS) associated with SARS-CoV was reported in Wuhan, China. It was quickly discovered that the etiological factor of the new disease (COVID-19) was a previously unknown SARS coronavirus 2 (SARS-CoV-2). The global spread of of COVID-19 has lead to the declaration of a pandemic status in 2019-2020 as declared by the World Health Organization and Public Health Emergency of International Concern. SARS-CoV-2 characterizes with high epidemic potential and is effectively disseminated between humans. SARS-CoV and SARS-CoV-2 are closely related pathogens. selleck products Their prime route of distribution is air-droplet transmission. Combating infectious diseases disseminated by inhalation is very difficult, and mainly relies on the use of vaccines. However, despite the lack of an effective anti-SARS-CoV vaccine and specific antiviral drugs, the strict sanitary procedures proved to be sufficient to stop the SARS epidemic in June 2003. However, epidemic research has indicated that SARS-CoV-2 is transmitted in humans significantly more effectively than SARS-CoV; therefore, the COVID-19 pandemic continues to expand. This indicates that the so far anti-epidemic activities to control COVID-19 are insufficient. In the current review, the possibility of using interferon α (IFN-α) as a preventive agent of COVID-19 is discussed. The current data concerning anti-COVID-19 vaccines and specific drugs against SARS-CoV-2 are also discussed. The aim of the current review is to contribute to the introduction of a more efficient strategy in the protection of the human population against COVID-19.The aim of the present study was to describe transrectal ultrasound (TRUS)-guided seminal vesicle catheterizations with continuous antibiotic infusion in patients with persistent hematospermia. A retrospective record review of 45 patients with refractory hematospermia treated with TRUS-guided seminal vesicle catheterization between 2010 and 2017 was performed. Seminal vesicle puncture and catheterization was performed under TRUS guidance for all patients. Antibiotic irrigation was used to rinse the seminal vesicle until the outflow fluid was clear. The trocar sleeve was left in situ and fixed on the skin of the perineum at the end of the procedure. All patients underwent a 24-h continuous infusion of antibiotic solution through the catheter. The patients were followed up to 3 years for the presence of hematospermia. The duration of refractory hematospermia was between 6 months and 9 years. A total of 14 patients exhibited consecutive hematospermia, while the remaining patients exhibited intermittent episodes. On TRUS, 15 cases of ejaculatory duct cyst, 7 cases of ejaculatory duct expansion, 3 cases of ejaculatory duct stones, 6 cases of seminal vesicle expansion, 8 cases of seminal vesicle stones and 5 cases of seminal vesicle wall or ejaculation wall calcification were diagnosed. A total of 41 patients completed the scheduled treatment plan; however, the catheter was dissociated on the 3rd or 4th day of catheterization in 4 patients. After a 1-3 year follow-up, hematospermia was not observed in 42 patients (93.33%) with recurrence in the remaining 3 patients. In conclusion, TRUS-guided seminal vesicle catheterization with continuous antibiotic infusion appeared to be a safe and effective method for the treatment of hematospermia.Polycystic ovary syndrome (PCOS) affects 8-13% of reproductive-age females worldwide and mutations or aberrant expression of androgen receptor (AR) may cause the onset of this disease. In the present study, 258 samples from Han Chinese patients with PCOS were analyzed for the presence of AR mutations via sequencing of all coding exons of the AR gene. A total of five heterozygous missense mutations, namely p.V3M, p.Q72R, p.S158L, p.S176R and p.G396R, were identified in five of the patients. Among these, p.S158L was a novel mutation that, to the best of our knowledge, has not been reported previously. Although the remaining four mutations have been reported previously, they existed at low frequencies or were absent in the control subjects and in the Exome Aggregation Consortium database. The results of evolutionary conservation and in silico analysis revealed that the p.V3M, p.S158L and p.S176R mutations were pathogenic, whereas the p.Q72R and p.G396R mutations were benign. Compared with the patients with PCOS without AR mutations or with benign AR mutations, markedly lower estrogen levels on the day of human chorionic gonadotropin injection were observed in the three patients with PCOS with potentially pathogenic mutations.