A total of 101 honey samples that originated from 20 different unifloral honey and other multifloral honey samples were collected from China.FT-NIR spectrometer were applied to determinate the content of fructose and glucose of honey with two different modes: transflectance (800-2500 nm, 2 mm optical path length) and transmittance (800-1370 nm, 20 mm optical path length).It was found that the prediction accuracy of fructose and glucose had significant difference with the two modes.In order to analyze the reason of this difference, support vector machine (SVM) was used to analyze the non-linear information, and genetic algorithm (GA) was used to analyze the characteristic wavelengths.The result indicated that the detection difference of fructose and glucose was originated from their different characteristic wavelengths.Through the optimization of detection method, it was found that for the determination of glucose, short wavelength and long optical path length should be used, on the other side, the whole wavelength region and short wavelength, with selecting the characteristic wavelength to avoid the disturb of water can also be used.For the determination of fructose, whole wavelength region and short optical path length should be used.Linear regression methods such as PLSR could obtain good results, and non-linear methods such as SVM did not improve the model performance.

Objective To evaluate the safety and feasibility of endoscopic transumbilical thoracic sympathectomy.Methods The technique was performed in 4 swine models.Under general anesthesia,a newly developed long abdominal trocar (60 cm in lengths) was placed through the umbilicus,which was also used to establish pneumoperitoneum.After insertion of gastroscope through this trocar,two small incisions of diagrams were created by needle-knife,through which the gastroscope was sent into the thoracic cavity to ablate the T3 ganglia by Hot biopsy forceps under One-lung ventilation.The animals were killed at the completion of the procedure.Results This procedure was completed in four pigs.The sympathetic chain was successfully ablated in all swine,as confirmed by gross surgical pathology and histology,the mean operative time was (81.7 ±15.4) minutes.There was no major bleeding.All bilateral T3 sympathetic chains were successfully ablated in the 4 swines as confirmed by gross surgical pathology and histology.There was no severe bleeding and damage to peripheral organs during the operation in any of the cases,and no prominent pneumothorax was revealed by postoperative chest X-ray radiography.Conclusion Endoscopic transumbilical thoracic sympathectomy is safe,feasible and effective with good cosmetic result.

Objective To investigate the clinical value of transumbilical endoscopic thoracic sympathectomy on women patients with palmar hyperhidrosis.Methods A total of 25 consecutive women patients with palmar hyperhidrosis underwent transumblical thoracic sympathectomy with ultra-thin endoscope.The operative data,including duration of operation,intra-operative and postoperative complications were recorded.Results The procedure was performed successfully in all 25 patients with a mean operative time of 64 min(58-113 min).No umbilical hernia,diaphragmatic hernia,Horner's syndrome or hemothorax were observed.Minor pneumothorax was found in postoperative chest X-ray in 3 patients,all of which were completely resolved with conservative treatment.All patients recovered to their normal life at 1 week after discharge.The scar was small and hidden in umbilical with no visible incisions.After a follow-up of 4 to 12 months,all patients' hands sweating symptoms completely disappeared,axillary sweat symptoms completely resolved in 6 patients,significantly improved in 4 and mildly improved in 1.Conclusion Transumbilical thoracic sympathectomy with ultrathin flexible endoscope is a safe and effective option for women patients with severe palmar hyperhidrosis,which provides excellent cosmetic outcomes.

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Objective: Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear. Methods: A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients' medical records. Multivariable logistic regression models were used to estimate the odds ratio ( Results: Overall, 158 (13.6%) patients were diagnosed with severe illness and 32 (2.7%) had unfavorable outcomes. Hypertension (2.87, 1.30-6.32), type 2 diabetes (T2DM) (3.57, 2.32-5.49), cardiovascular disease (CVD) (3.78, 1.81-7.89), fatty liver disease (7.53, 1.96-28.96), hyperlipidemia (2.15, 1.26-3.67), other lung diseases (6.00, 3.01-11.96), and electrolyte imbalance (10.40, 3.00-26.10) were independently linked to increased odds of being severely ill. T2DM (6.07, 2.89-12.75), CVD (8.47, 6.03-11.89), and electrolyte imbalance (19.44, 11.47-32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission (5.46, 3.25-9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes (6.58, 1.46-29.64) within two weeks. Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes.
Adult ; Aged ; COVID-19/virology* ; China/epidemiology* ; Comorbidity ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Severity of Illness Index ; Treatment Outcome