The volatile compounds of trogopterorum feces were collected by using a simultaneous distillation and extraction (SDE) equipment. The chemical composition of the enriched volatile was examined by means of capillary gas chromatography (GC) and combined GC-mass spectrometry (MS). Fifty one constituents of the volatile were preliminarily identified by GC-MS, which amounted to 56.3% of the total peak area. Of these compounds, 33 were further verified by measuring their temperature-programmed retention indexes (TPRI) or retention times. They amounted to 35.7 % of the total peak areas. The main constituents of the volatile are dedecanoic acid (7.00%);alphacedrol (4.41%); pyrazine, tetramethyl-(4. 10%); tetradecanoic acid (3.37%); ethanone, 1-(3-methylphenyl)- (2.53%); benzaldehyde (2.42%); phenol, 2-methoxy-(2.11% ). The compound classes consist of alcohols (10), ketones (8), aldehydes (6), olefines (5), acids (4), and phenols (4).

Objective To investigate the effect of plasma fibrinogen (Fib) level on stroke recurrence within one year of first-ever ischemic stroke.Methods The patients with first-ever acute ischemic stroke were enrolled prospectively and were followed up for at least one year.They were divided into either a recurrent group or a non-recurrent group.Multivariate logistic regression analysis was used to explore the risk factors for stroke recurrence within one year of first-ever ischemic stroke.According to the plasma Fib levels of the early onset,the patients were divided into a high Fib group and a normal Fib group.Kaplan-Meier survival analysis was used to compare the recurrence between the two groups.Results A total of 121 patients with first-ever acute ischemic stroke were enrolled,111 completed one year follow up,and 30 of them (27.027％) had recurrent stroke.Multivariatelogistic regression analysis showed that the increased plasma Fib level (odds ratio [OR] 13.238,95％ confidence interval [CI] 1.152-152.077; P=0.038),older at the first onset (OR 1.321,95％ CI1.064-1.641;P=0.012),high body mass index(OR 1.351,95％ CI 1.001-1.823; P=0.049),and poor compliance of antiplatelet drugs (OR 36.819,95％ CI 1.890-717.143; P=0.017) and antihypertensive drugs (OR 50.765,95％ CI 3.198-805.878; P =0.005) were the dependent the risk factors for stroke recurrence within one year of first-ever ischemic stroke.Kaplan-Meier survival function curves showed that the recurrence rate of stroke in the high Fib group was significantly higher than that in the normalFib group (Log-rank test,P =0.000).Conclusions The increased high plasma Fib level,advanced age,obesity,as well as poor compliance of antiplatelet drugs and antihypertensive drugs were the independent risk factors for stroke recurrence within one year of first-ever ischemic stroke.

Objective To analyze the epidemiological characteristics and risk factors of gastric cancer after eradication of ( Helicobacter pylori , Hp) in Fuzhou area, to provide a theoretical basis for reducing the incidence and mortality of gastric cancer after eradication of Hp, and to provide effective suggestions for the prevention of gastric cancer in residents in Fuzhou. Methods A total of 699 patients with Hp eradication admitted to our hospital from January 2020 to December 2020 were selected. According to whether the patients had gastric cancer after eradication, they were divided into control group (no gastric cancer) and observation group (gastric cancer). The serum levels of tumor markers including CEA, CA125 and CA199 were detected and compared between the two groups. Clinical data of the two groups, including age, sex, family history of gastric cancer, course of Hp infection, open atrophy, severe atrophy of gastric mucosa, presence of intestinal metaplasia (IM) of gastric mucosa, xanxoma of gastric mucosa, and long-term use of proton pump inhibitors (PPIs), were analyzed using the self-made survey scale in our hospital. Univariate analysis and logistic regression were used to analyze the risk factors for gastric cancer after Hp eradication. Results Among of 699 patients with Hp eradication, 48 cases (6.96%) developed gastric cancer, including 29 male cases and 19 female cases. The incidence rate of males was significantly higher than that of females (P<0.05). The incidence rate of elderly patients was significantly higher than that of non-elderly patients (P<0.05). Serum CEA, CA125 and CA199 levels in the observation group were significantly higher than those in the control group (P<0.05). There were statistically significant differences in open atrophy, severe atrophy of gastric mucosa, presence of IM, xanxoma of stomach and PPIs use time >3 years between the two groups (P<0.05). The presence of IM (OR=4.874), severe atrophy of gastric mucosa (OR=4.412) and the time using PPIs >3 years (OR=3.631) were independent risk factors for gastric cancer after Hp eradication (P<0.05). Conclusion There is a high risk of gastric cancer after HP eradication in Fuzhou, mainly in elderly male patients, especially in patients with IM, severe atrophy of gastric mucosa and long-term use of PPIs, often accompanied by elevated levels of tumor markers. Close gastroscopy follow-up examination must be conducted within 4 to 5 years after Hp eradication, which is helpful for screening high-risk groups of gastric cancer, preventing gastric cancer and treating gastric cancer as early as possible after Hp eradication.

Oral cancer is a common and deadly malignancy.While multidisciplinary treatment(mainly surgery)has been applied in the treatment of cancer treatment,early diagnosis and complete removal of the primary lesion are essential for a better prognosis.Raman spectroscopy is an optical technique that detects inelastic scattered light generated by the interaction of light and matter.It can detect the vibrational spectra of biochemical and biomolecular structures and tissue conformations,and can provide the "molecular fingerprint" for cells,tissues,and biological fluids.With the development of related technologies and optical instruments,Raman spectroscopy has been widely applied in medical fields.This article reviews the research advances and application of Raman spectroscopy in the diagnosis of oral cancer.
Humans ; Mouth Neoplasms ; Spectrum Analysis, Raman