Abstract Blood donation institutions mainly rely on manual identification for pre-donation health screening of blood donors. To further ensure the safety of blood donation and minimize the participation of unqualified donors, Ningbo Central Blood Station developed and launched a pre-blood donation health screening software as a supplement to the manual identification in May 2023. The software establishes preset rules based on the conditions of donors who are ineligible or temporarily ineligible to donate blood in Whole Blood and Component Donor Selection Requirements (GB 18467-2011), retrieves the health records of blood donors from the Ningbo National Health Information System and compares with the preset rules. When a preset rule is triggered, the medical examiner receives a warning. The pre-donation health screening software effectively enhances the capabilities of blood donation institutions in identifying unqualified donors. It is conducive to promoting the standardization of the pre-donation health screening process, the intelligence of blood donation services and blood management, and the establishment of a more scientific and efficient pre-donation health screening procedure.

Objective To investigate the effect of Shenmai injection on purine content in rat cerebral cortex in order to provide a theoretical basis concerning its brain protective mechanism. Methods Sixteen Sprague-Dawley (SD) rats were randomly divided into two groups:normal saline control group and Shenmai injection group, with 8 rats in each group. Shenmai injection 15 mL/kg was injected intraperitoneally into the rats in Shenmai injection group, while in the normal saline group, an equal volume of normal saline was intraperitoneally injected. After the injection for 24 hours, the rats were sacrificed, and the cerebral cortex was removed on ice, homogenized and its supernatant was extracted;then high performance liquid chromatography (HPLC) was used to detect adenosine triphosphate (ATP), adenosine diphosphate (ADP), adenosine monophosphate (AMP), adenosine and inosine contents in the supernatant of cerebral cortex. Results Compared with normal saline control group, ATP, ADP, AMP, adenosine and creatinine content in the cerebral cortex of Shenmai injection group were significantly higher, the differences being statistically significant [ATP (ng/L): 31.62±5.12 vs. 20.25±4.53, ADP (ng/L): 37.04±6.72 vs. 25.12±7.35, AMP (ng/L): 87.82±20.37 vs. 33.23±10.34, adenosine (ng/L): 2.82±0.15 vs. 1.12±0.61, creatinine (ng/L): 11.72±1.05 vs. 6.05±2.55, P < 0.05 or P<0.01]. Conclusion Shenmai injection can elevate ATP, ADP, AMP, adenosine and creatinine contents in the cerebral cortex of rats, possibly that is the theoretical basis for brain protective mechanism of Shenmai injection.

Objective To analyze the risk factors of respiratory depression occurring during recovery period in patients after having undergone general anesthesia and laparoscopic operation.Methods A total of 374 patients after general anesthesia and laparoscopic surgery admitted to the First Affiliated Hospital of Wenzhou Medical University from June 2015 to June 2016 were enrolled, they were divided into with or without the incidence of respiratory depression two groups by whether or not respiratorydepression, with the incidence of respiratory depression group 52 cases, without the incidence of respiratory depression group 322 cases. The patients' gender, age, body mass index (BMI), operation time, anesthesia maintenance mode, artificial airway mode, operative type and medication used in operation, intra-operative hypotension presence or absence, and type of operation were recorded. Univariate and multivariate logistic regression analyses were used to evaluate the risk factors of respiratory depression occurring in the recovery period after general anesthesia; receiver operating characteristic (ROC) curve was drawn to evaluate the predictive value of age, intraoperative medication, and age combine with intraoperative medication respectively in the occurrence of respiratory depression during recovery period after general anesthesia and lapatoscopic operation.Results Univariate analyses showed that there were no statistical significant differences in gender, BMI, operation time, anesthesia maintenance mode, artificial airway mode, intra-operative hypotension presence or absence, type of operation, etc. compared between patients with and without the incidence of respiratory depression groups (allP > 0.05); while the differences were statistically significant in age and drug used in the operation (dezocine, flurbiprofen, dexmedetomidine or dezocine combined with dexmedetomidine, allP < 0.05). Multivariate analyses showed that age and medication used in operation were the independent risk factors for the occurrence of respiratory depression during the anesthesia recovery stage (P values being 0.000, 0.002 respectively). ROC curve showed that age, intra-operative medication and age combine with intraoperative medication respectively had certain predictive value for the occurrence of respiratory depression during the recovery period after general anesthesia and laparoscopic surgery, the area under the ROC curve (AUC) of age combine with intraoperative medicationfor prediction of occurrence of respiratory depression during recovery period after anesthesia and laparoscopic surgery was significantly larger than that of single age or single intraoperative medication (0.826 vs. 0.668, 0.750,P < 0.01), 95% confidence interval (95%CI) of age, intraoperative medication and age combined with intraoperative medication were 0.598-0.738, 0.670-0.830, 0.764-0.888, the sensitivity, specificity and accuracy rate of age combine with intraoperative medication were 53.8%, 94.4% and 88.8%, respectively.Conclusion Elderly patients undergoing general anesthesia and laparoscopic operation and dezocine, dexmedetomidine or dezocine combined with dexmedetomidine being applied in the laparoscopic operation are more easily associated with incidence of respiratory depression during recovery period of anesthesia.

Objective To establish mouse models of intracerebral hemorrhage using autologous arterial blood,to study the physiological property of hippocampal neurons,brain edema changes and learning ability in the mouse models after intracerebral hemorrhage.Methods Eighty male C57/BL6 mice were randomly divided into intracerebral hemorrhage group and control group (n=40); 20 μL arterial blood from the tail arteries or normal saline were injected into the caudate nucleus of intracerebral hemorrhage group and control group by stereotactic technique,respectively.One,three,five and seven d after injection,the neurological impairment was scored; the behavioral changes of the mice in the Morris water maze (navigation test and space exploration experiment) were observed; brain edema was measured by wet and dry weight method and electrophysiological differences of hippocampal neurons were recorded by whole-cell patch-clamp technique and computer software.Results As compared with those in the control group,significantly increased neurological deficit scores one,three,five and seven d after injection,statistically decreased residence time in the platform on the fifth d of training,obviously increased water content around the brain edema one,three,five and seven d after injection,and significantly decreased resting membrane potential and input resistance in the hippocampal CA1 pyramidal cells five d after injection of mice in the intracerebral hemorrhage group were noted (P＜0.05).Conclusion The hippocampus-dependent spatial leaming ability of intracerebral hemorrhage mice is decreased,and the permeability of potassium channels is enhanced.

It is believed that the pathogenesis of white lesions on the vulva lies in liver and kidney dysharmony， and the principle of regulating liver and kidney is recommended， with a combination of internal and external treatment， and using multiple methods. Clinically， it is differentiated into deficiency and excess. For deficient patients， liver-kidney yin deficiency is most common， for which self-prepared Zidi Yanghu Decoction （紫地养户汤）is used for internal treatment to nourish the kidney and liver， invigorate blood and dispel wind； self-made Shougui Xiyang Formula （首归息痒方） for fumigation， washing and sitz bath is used as external treatment to supplement and invigorate blood， dispel wind and relieve itching. Damp-heat in the liver channel is the most common excess syndrome， for which the internal treatment is self-made Xiaoyao Xiegan Decoction （逍遥泻肝汤） to clear the liver and drain dampness， unblock collaterals and relive itching， and the external treatment is self-made Kubai Zhiyang Formula （苦柏止痒方） for fumigation， washing and sitz bath in order to clear heat， drain dampness and relieve itching. If there is accompanied local hypopigmentation， obvious itching， painful ulcers， or scratching due to itching， self-made Zima Yukui Oil （紫麻愈溃油） is often applied topically to eliminate macules and engender flesh.

Objective To study the effect and mechanism of dexmedetomidine combined with sufentanil on postoperative analgesia in elderly patients with abdominal surgery. Methods Ninety-six elderly patients having undergone abdominal surgery in the First Affiliated Hospital of Wenzhou Medical University from January 2016 to June 2017 were enrolled, and they were divided into a control group and an observation group by random number table method, 48 cases in each group. General anesthesia was performed in the operation, and after surgery venous analgesic pump was used for analgesia in both groups. Analgesic method: the control group was given sufentanil 2 μg/kg and tropisetron 5 mg; the observation group was given dexmedetomidine 2 μg/kg, sufentanil 2 μg/kg and tropisetron 5 mg. The changes of pain and sedation score, conventional indexes [systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), respiratory rate (RR), pulse blood oxygen saturation (SpO2)], oxidative damage indexes [lipid peroxide (LPO), glutathione peroxidase (GSH-Px), Cu-Zn superoxide dismutase (Cu-Zn SOD)], stress response indexes [cortisol (Cor), epinephrine, norepinephrine (NE)], platelet activation indexes granule membrane protein-140 (GMP-140), thromboxane A2(TXA2) and the incidence of adverse reactions were observed in both groups. Results ① After surgery the visual simulation score (VAS) and Ramsay score in both groups were higher than those before surgery, and showed a tendency firstly increased and then decreased, and reached to peak value 2 hours after operation [VAS score:the control group was 3.24±0.98 vs. 1.95±0.93, observation group was 3.19±1.03 vs. 1.98±0.95; Ramsay score:the control group was 3.26±0.51 vs. 1.90±0.45, observation group was 3.77±0.53 vs. 1.92±0.42], began to decline 6 hours after operation, reached to valley value 48 hours after operation, and there was no significant difference in VAS scores between the two groups (2.02±0.64 vs. 1.98±0.95), Ramsay score was significantly higher in observation group than that in control group (2.59±0.41 vs. 2.10±0.21). ② Since 2 hours after the operation, the SBP, DBP, HR and RR in the observation group began to be lower than those in control group, 12 hours after surgery their values reached their valleys [SBP (mmHg, 1 mm Hg = 0.133 kPa): 113.2±13.5 vs. 122.1±10.3, DBP (mmHg): 67.5±9.9 vs. 76.4±8.6, HR (bpm): 64.5±6.9 vs. 71.4±7.5, RR (bpm): 14.8±1.1 vs. 15.8±0.8, all P < 0.05]; while SpO2did not change a great deal. ③ LPO, Cor, epinephrine, NE, GMP-140, TXA2of two groups after operation were higher than those before operation, GSH-Px and Cu-Zn SOD were lower than those before operation. However, LPO, Cor, epinephrine, NE, GMP-140, TXA2in observation group were significantly lower than those in control group [LPO (μmol/L): 6.4±0.8 vs. 9.8±1.1, Cor (ng/L): 148.2±19.1 vs. 239.3±27.8, epinephrine (μg/L): 124.2±13.9 vs. 207.1±23.5, NE (μg/L): 109.2±14.8 vs. 183.3±21.6, GMP-140 (μg/L): 27.13±3.82 vs. 39.06±4.83, TXA2(ng/L): 422.30±53.74 vs. 610.43±73.21, all P < 0.05], GSH-Px and Cu-Zn SOD in observation group were significantly higher than those in the control group [GSH-Px (U/L): 426.7±58.7 vs. 307.9±51.2, Cu-ZnSOD (μg/L): 311.3±42.5 vs. 231.6±34.1, all P < 0.05].④ The incidence of adverse reaction nausea in the observation group was significantly lower than that in the control group [4.17% (2/48) vs. 37.5% (18/48)]. Conclusion Dexmedetomidine combined with sufentanil used in elderly patients after abdominal surgery has significant analgesic effect, can effectively inhibit platelet activation, and decrease the contents of GMP-140 and TXA2.

OBJECTIVETo observe the effects of transcutaneous electrical acupoint stimulation (TEAS) on gastric emptying in patients undergoing selective surgery based on velocity of gastric emptying by ultrasonography.

METHODSA total of 75 patients with selective operation of subarachnoid block at lower limb in the afternoon were randomly assigned to a TEAS group, a sham group and a control group, 25 patients in each one. All the patients were provided with semi-fluid diet at 8 a.m. The TEAS group was treated with TEAS 5 min after semi-fluid diets at bilateral Zusanli (ST 36) and Neiguan (PC 6) for 30 min, with frequency of 5 Hz and intensity which was 1 mA lower than the tolerance threshold. The sham group patients were stimulated at the same acupoints with current intensity which was 1 mA lower than the sensory threshold. The control group received no treatment. On the day of operation, and ultrasonography was given at time of empty stomach (T0), immediately after the semi-fluid diets (T1), and every 30 min after diets (T2-T6), respectively, to measure the gastric content and emptying time at semire-clining position and right lateral position.

RESULTSThe volume of gastric content in the three groups at T3-T6 was significantly less than that at T1 (all<0.05). The volume of gastric content at T4-T6 at semire-clining position in the TEAS group was significantly less than that in the control group and sham group (all<0.05). The volume of gastric content at T5-T6 at right lateral position in the TEAS group was significantly less than that in the control group and sham group (all<0.05). The gastric emptying time in the TEAS group was significantly less than that in the control group and sham group (both<0.05).

CONCLUSIONThe gastric emptying velocity could be evaluated by ultrasonography. TEAS could improve the velocity of gastric emptying and reduce the gastric emptying time.