Gossypol was found to have an inhibiting effect on spermatogenesis in animals and has been used as an antifertility agent in clinical trial. However, a very small proportion of subjects on gossypol were found to be hypokaleimia. The direct cause of it was due to renal potassium loss. The present study was designed to make an ultrastructural observation on the enzymatic activity of the membrane protein Na-K-ATPase, the so called sodium pump of renal tubular cells of rats and guinea pigs following gossypol treatment. Gossypol was administered to male animals at a dosage of 30 mg/kg body weight daily. Kidney tissues were removed at various time intervals after gossypol treatment and processed for ultra-cytochemical study and quantitative measurement of Na-K-ATPase. The results obtained were as follows.1. The enzymatic activity of Na-K-ATPase of kidney tissues was shown to decrease slightly following gossypol treatment in both rats and giunea pigs, but there was no significant difference between the gos ol treated and the control groups.2. Ultra-cytochemical observations on the localization of Na-K-ATPase demonstrated that the enzyme reactive products in renal distal convoluting tubules, ascending limbs of Henle's loop and collecting ducts desending through the cortex to the outer medulla were mainly localized to the basal plasma membranesand their retromembranous folds of the epithelial cells. A small amount of the reactive products associated with the luminal surface of the distal convoluting and collective tubules were also observed. The amount of enzyme reactive granules of the treated animals did not differ significantly from that of controls.3. The results of perfusion experiments with ouabain indicated that ouabain inhibited Na-K-ATPase specifically in renal distal convolutions, ascending limbs and collecting tubules in both the treated and control animals.4. The cytochemical reactive granules in the erythrocyte and cardiac cell membrenes decreased in number following gossypol treatment.

Objective To investigate the clinical application value of genechip detection system in the mycobacterial species iden-tification and drug resistance analysis .Methods The specimens of sputum ,punctured pus ,pleural and abdominal ascites ,cerebro-spinal fluid and so on were performed the Mycobacterium DNA detection by using the gene chip technique .Then Mycobacterium tuberculosis positive samples were further performed the drug-resistant analysis .Meanwhile the Ziehl-Neelsen acid-fast staining was adopted to detect the sample .The positive rates were compared between the two groups .And TB-IGRA was used to examine the tubercle bacillus infection in partial patients .Results In 4402 samples ,137 cases (3 .36% ) of M ycobacterium tuberculosis (MTB) and 11 cases(7 .4% ) of non-tuberculosis mycobacterium(NTM) were detected .Puncture solution ,bronchoalveolar lavage fluid and tissue specimen had higher positive rate .In the 137 positive M TB samples by rifampicin-resistant gene rpoB ,isoniazide-re-sistant gene katG and inhA detection ,22 cases of resistance gene mutations were detected ;the positive rate of genechip for detecting sputum ,cerebrospinal fluid ,hydrothorax and ascites was higher than that of acid-fast staining .TB-IGRA detection had higher pos-itive rate of TB infection than genechip .Conclusion The genechip detection system can directly conduct Mycobacterium identifica-tion and drug resistance analysis ,which is especially suitable for sputum ,cerebrospinal fluid ,hydrothorax and ascites samples ,and which is simple and rapid with higher sensitivity and good specificity .

Objective:To evaluate the clinical curative effect of Shenqi-Gushen Decoction on patients with chronic renal failure (CRF) of qi-yin deficiency syndrome. Methods:A total of 82 patients with CRF meeting inclusion criteria in the hospital were enrolled between June 2018 and January 2021. According to random number table method, they were divided into control group and observation group, 41 in each group. The control group was treated with routine western medicine, while the observation group was treated with Shenqi-Gushen Decoction on basis of control group. All were treated for 2 months. Before and after treatment, Traditional Chinese Medicine (TCM) symptoms were scored. The serum creatinine (SCr) and blood urea nitrogen (BUN) were detected by full-automatic biochemical analyzer. The levels of IL-6, TNF-α and hypersensitive C-reactive protein (hs-CRP) were detected by ELISA. The levels of hemoglobin (Hb), serum albumin (Alb) and prealbumin (PA) were detected by immune scatter turbidity. And clinical curative effect was evaluated. Results:The total response rate [80.5% (33/41) vs. 46.3% (19/41); χ2=5.861, P=0.015] in the observation group was significantly higher than that of the control group. After treatment, scores of TCM symptoms in observation group was significantly lower than that of the control group ( t=23.468, P<0.01), levels of serum SCr [(421.19 ± 43.82) μmol/L vs. (488.71 ± 48.39) μmol/L, t=6.623] and BUN [(19.54 ± 1.26) mmol/L vs. (24.12 ± 2.42) mmol/L, t=10.749] were significantly lower than those in the control group ( P<0.01), and eGFR [(47.71 ± 4.68) ml/min vs. (42.51 ± 4.55) ml/min, t=5.101] was significantly higher than that of control group ( P<0.01). After treatment, levels of serum IL-6, TNF-α and hs-CRP in observation group were significantly lower than those in the control group ( t=3.412, 3.714, 2.466, P<0.01 or P<0.05), while levels of Hb, Alb and PA were significantly higher than those in the control group ( t=4.462, 5.807, 2.256, P<0.01 or P<0.05). Conclusion:Shenqi-Gushen Decoction combined with routine western medicine can improve clinical syndromes, renal function, micro-inflammation response, nutrition status and curative effect in patients with CRF of qi-yin deficiency syndrome.

Objective:To explore the influences of Xingnao Tongdu acupuncture combined with Brunnstrom staging training on rehabilitation effect in stroke patients during recovery.Methods:According to random number table method, 82 patients with stroke during recovery who met inclusion criteria in Rehabilitation Medicine Department of the hospital were divided into control group (receiving routine rehabilitation training combined with Xingnao Tongdu acupuncture) and observation group (Brunnstrom staging training on basis of control group) between February 2020 and February 2021, 41 cases in each group. Both groups were continuously treated for 4 weeks. Before and after treatment, the severity of neurological deficits was evaluated by National Institute of Health Stroke Scale (NIHSS). The limb motor function was evaluated by Fugl-Meyer Assessment (FMA). The self-care ability was assessed by Barthel Index (BI). IL-6 was detected by ELISA. CRP level was detected by immunoturbidimetry. The WBC was detected by blood analyzer. The adverse reactions during treatment were observed. The clinical curative effect was evaluated.Results:There 40 cases in observation group and 41 cases in the control group were included into the statistics. The difference in total response rate between observation group and control group was not statistically significant [90.0% (36/40) vs. 75.6% (31/41)] ( χ2=2.93, P=0.087). After treatment, NIHSS score (6.65±1.79 vs. 8.71±2.61, t=4.13) in observation group was significantly lower than that of the control group ( P<0.01), while FMA score (69.56±9.64 vs. 61.77±10.33, t=3.51) and BI (73.72±8.34 vs. 65.86±7.36, t=4.50) were significantly higher than those in the control group ( P<0.01). The levels of serum IL-6 and CRP in observation group were significantly lower than those in the control group ( t values were 5.95, 5.61, respectively, all Ps<0.01). There were no adverse reactions in either group during treatment. Conclusion:The Xingnao Tongdu acupuncture combined with Brunnstrom staging training can improve rehabilitation effect and reduce levels of serum inflammatory cytokines in stroke patients during recovery.

Objective To investigate the correlation between serum bicarbonate level and cardiovascular events in peritoneal dialysis(PD)patients.Methods The data of PD patients who underwent PD catheterization and were followed up regularly until March 31,2023 were retrospectively collected.The included patients were divided into low bicarbonate group and normal bicarbonate group according to the time-averaged serum bicarbonate level.The incidence of cardiovascular events(including coronary heart disease,heart failure,stroke,peripheral vascular dis-ease,death related to cardiovascular surgery or death due to aneurysm dissection or rupture,fatal pulmonary em-bolism,or death from other or unknown cardiovascular causes)was compared between the two groups and the risk factors for cardiovascular events were analyzed.Results At the end of follow-up,a total of 110 PD patients were included,and 34 patients had cardiovascular events.Compared with the normal bicarbonate group,the low bicar-bonate group had a higher incidence of cardiovascular events.Univariate Cox regression analysis showed that the risk of cardiovascular events in the low bicarbonate group was 4.197 times higher than that in the normal bicarbon-ate group(95％CI=2.115-8.331,P＜0.001).After adjusting for multiple confounding factors,the risk of car-diovascular events in the low bicarbonate group was 3.506 times higher than that in the normal bicarbonate group(95％CI=1.709-7.193,P=0.001).The results of multivariate competing risk model showed that the risk of cardiovascular events in the low bicarbonate group was 3.801 times higher than that in the normal bicarbonate group(95％CI=1.920-7.525,P＜0.001).Conclusion Low serum bicarbonate level is closely related to the oc-currence of cardiovascular events in patients with PD,and it is an independent risk factor for cardiovascular events in patients with PD.