A new siderophore chelate (1) and 8 known compounds were identified from the liquid co-cultures of the marine-derived Streptomyces sp. IMB18-531 and Cladosporium sp. IMB19-099 by a combination of chromatography methods, including C18 reversed-phase medium pressure chromatography, gel column chromatography and HPLC. Their structures were determined by spectroscopic analysis and chemical methods as aluminioxamine E (1), desferrioxamine E (2), ferrioxamine E (3), terragine E (4), capsimicin (5), cyclo(L-prolinyl-L-tyrosine) (6), anthranilic acid (7), (Z)-14-methylpentadec-9-enoic acid (8), and (Z)-hexadec-8-enoic acid (9). Compound 2 showed inhibitory activities against the expression of liver fibrosis related genes COL1A1, MMP2, and TIMP2. Compounds 5, 8, and 9 displayed antibacterial activities against methicillin-resistant Staphylococcus aureus, S. epidermidis and Bacillus subtilis, with MICs of 16-64 μg·mL^-1. Compound 5 showed cytotoxicities against human pancreatic cancer MIA Paca-2 and human colon cancer HT-29 cell lines with IC₅₀ of 2.9 and 6.3 μmol·L^-1, respectively.

The discovery of neuroglobin (Ngb), a brain- or neuron-specific member of the hemoglobin family, has revolutionized our understanding of brain oxygen metabolism. Currently, how Ngb plays such a role remains far from clear. Here, we report a novel mechanism by which Ngb might facilitate neuronal oxygenation upon hypoxia or anemia. We found that Ngb was present in, co-localized to, and co-migrated with mitochondria in the cell body and neurites of neurons. Hypoxia induced a sudden and prominent migration of Ngb towards the cytoplasmic membrane (CM) or cell surface in living neurons, and this was accompanied by the mitochondria. In vivo, hypotonic and anemic hypoxia induced a reversible Ngb migration toward the CM in cerebral cortical neurons in rat brains but did not alter the expression level of Ngb or its cytoplasm/mitochondria ratio. Knock-down of Ngb by RNA interference significantly diminished respiratory succinate dehydrogenase (SDH) and ATPase activity in neuronal N2a cells. Over-expression of Ngb enhanced SDH activity in N2a cells upon hypoxia. Mutation of Ngb at its oxygen-binding site (His⁶⁴) significantly increased SDH activity and reduced ATPase activity in N2a cells. Taken together, Ngb was physically and functionally linked to mitochondria. In response to an insufficient oxygen supply, Ngb migrated towards the source of oxygen to facilitate neuronal oxygenation. This novel mechanism of neuronal respiration provides new insights into the understanding and treatment of neurological diseases such as stroke and Alzheimer's disease and diseases that cause hypoxia in the brain such as anemia.
Rats ; Animals ; Neuroglobin/metabolism* ; Globins/metabolism* ; Nerve Tissue Proteins/metabolism* ; Neurons/metabolism* ; Hypoxia/metabolism* ; Brain/metabolism* ; Oxygen ; Anemia/metabolism* ; Adenosine Triphosphatases/metabolism*

OBJECTIVE: Clinical characteristics and outcome in COVID-19 with brucellosis patients has not been well demonstrated, we tried to analyze clinical outcome in local and literature COVID-19 cases with brucellosis before and after recovery. METHODS: We retrospectively collected hospitalization data of comorbid patients and prospectively followed up after discharge in Heilongjiang Infectious Disease Hospital from January 15, 2020 to April 29, 2022. Demographics, epidemiological, clinical symptoms, radiological and laboratory data, treatment medicines and outcomes, and follow up were analyzed, and findings of a systematic review were demonstrated. RESULTS: A total of four COVID-19 with brucellosis patients were included. One patient had active brucellosis before covid and 3 patients had nonactive brucellosis before brucellosis. The median age was 54.5 years, and all were males (100.0%). Two cases (50.0%) were moderate, and one was mild and asymptomatic, respectively. Three cases (75.0%) had at least one comorbidity (brucellosis excluded). All 4 patients were found in COVID-19 nucleic acid screening. Case C and D had only headache and fever on admission, respectively. Four cases were treated with Traditional Chinese medicine, western medicines for three cases, no adverse reaction occurred during hospitalization. All patients were cured and discharged. Moreover, one case (25.0%) had still active brucellosis without re-positive COVID-19, and other three cases (75.0%) have no symptoms of discomfort except one case fell fatigue and anxious during the follow-up period after recovery. Conducting the literature review, two similar cases have been reported in two case reports, and were both recovered, whereas, no data of follow up after recovery. CONCLUSION These cases indicate that COVID-19 patients with brucellosis had favorable outcome before and after recovery. More clinical studies should be conducted to confirm our findings.
Female ; Humans ; Male ; Middle Aged ; Brucellosis ; COVID-19 ; Retrospective Studies ; SARS-CoV-2 ; Treatment Outcome ; Case Reports as Topic

Objective:To investigate the risk factors of bone cement leakage after percutaneous vertebroplasty (PVP) for osteoporotic vertebral compression fracture (OVCF).Methods:A multi-center, large-sample, case-control study was carried out to analyze the clinical data of 2 273 OVCF patients (2 689 vertebrae) undergone PVP at four hospitals between May 2018 and October 2021, including 994 males and 1 279 females, with the age of 52-91 years [(69.1±3.1)years]. Of all, 581 patients (604 vertebrae) were allocated to leakage group and 1 692 patients (2 085 vertebrae) to no leakage group according to the occurrence of bone cement leakage. The gender, age, fracture sites, vertebral compression degree, endplate integrity of fractured vertebrae, surgical segments, surgical approaches and bone cement injection volume were recorded. Univariate analysis was used to investigate the correlation between those indicators with bone cement leakage. Multivariate Logistic regression analysis was used to identify the independent risk factors for bone cement leakage.Results:Univariate analysis showed that gender, age, fracture sites, vertebral compression degree, bone cement injection volume were related to bone cement leakage after PVP ( P<0.05 or 0.01), but no correlation was found in the endplate integrity of fractured vertebrae, surgical segments and surgical approaches (all P>0.05). Multivariate Logistic regression analysis showed that fracture sites ( OR=1.68, 95% CI 1.11-2.55, P<0.05), vertebral compression degree more than 40% ( OR=1.98, 95% CI 1.29-3.02, P<0.01), bone cement injection volume greater than or equal to 5.5 ml ( OR=1.55, 95% CI 1.07-2.26, P<0.05) were significantly associated with bone cement leakage after PVP. Conclusion:Thoracic vertebral fracture, vertebral compression degree more than 40% and bone cement injection volume greater than or equal to 5.5 ml are independent risk factors for bone cement leakage after PVP in OVCF.

Objective: To understand the prevalence of chronic kidney disease (CKD) and related factors in adults in Anhui province based on the data of Chinese Chronic Diseases and Nutrition Surveillance program (2018) in Anhui. Methods: Multi-stage stratified cluster random sampling was used to select participants aged ≥18 years. Moreover, questionnaire survey, body measurements and laboratory tests were conducted. The complex weighting method was used to estimate the prevalence of CKD in residents with different characteristics, and complex sampling data logistic regression model was used for multivariate analysis to identify related risk factors. Results: A total of 7 181 participants were included. The overall prevalence of CKD was 11.06% in adults in Anhui, and the prevalence was 12.49% in women and 9.59% in men (P<0.05). The moderate, high and very high risk for CKD progression were 8.66%, 2.02% and 0.38%, respectively. Multivariate analysis showed that age (OR=1.03, 95%CI: 1.00-1.05), BMI (OR=1.05, 95%CI: 1.01-1.09), being woman (OR=1.38,95%CI: 1.22-1.55), hypertension (OR=2.50, 95%CI: 1.76-3.56), diabetes (OR=2.28, 95%CI: 1.51-3.43), dyslipidemia (OR=1.26, 95%CI: 1.11-1.43) and hyperuricemia (OR=2.16, 95%CI: 1.68-2.78) were risk factors for CKD. Conclusion: The prevalence of CKD in adults in Anhui was relatively high and age, gender, BMI, hypertension, diabetes, dyslipidemia and hyperuricemia were found to be associated with the prevalence of CKD. To prevent CKD and its complications, attention should be paid to the management of related risk factors, including overweight and obesity, hypertension, diabetes, dyslipidemia and hyperuricemia.
Adult ; Male ; Female ; Humans ; Adolescent ; Cross-Sectional Studies ; Prevalence ; Hyperuricemia/epidemiology* ; Renal Insufficiency, Chronic/epidemiology* ; Hypertension/epidemiology*

OBJECTIVE: To explore the influence of nutritional status on 90-day functional outcomes of stroke patients with acute large vessel occlusion in the anterior circulation after endovascular treatment (EVT). METHODS: We retrospectively analyzed the baseline, laboratory, surgical and 90-day follow-up data of patients with stroke resulting from acute large vessel occlusion in the anterior circulation, who underwent emergency endovascular treatment in our hospital from July, 2015 to December, 2020. A favorable outcome was defined as a modified Rankin scale score ≤2 at 90 days. Univariate and multivariate regression analyses were performed to explore the relationship between nutritional status and 90-day functional outcomes of the patients. RESULTS: A total of 459 patients (mean age of 68.29±11.21 years, including 260 males) were enrolled in this study. According to their prognostic nutritional index (PNI), the patients were divided into normal nutrition group (392 cases, 85.4%), moderate malnutrition group (44 cases, 9.6%), and severe malnutrition group (23 cases, 5.0%). Univariate analysis showed that the patients with good clinical outcomes had a lower proportion of malnutrition with a younger age, a lower rate of diabetes, lower baseline blood pressure, lower baseline NIHSS score, higher baseline ASPECT score, and higher rates of good collateral circulation and complete vascular recanalization. Multivariate analysis showed that in addition to age, diabetes, baseline systolic blood pressure, successful recanalization, baseline ASPECT score, baseline NIHSS score and collateral circulation, a greater PNI was a protective factor for a good 90-day outcome of patients after EVT (moderate vs severe: OR=0.245, 95% CI: 0.066-0.908, P=0.035; normal vs severe: OR=0.185, 95% CI: 0.059-0.581, P=0.004). CONCLUSION Nutritional status an important factor affecting the 90-day outcomes after EVT of stroke patients with acute large vessel occlusion in the anterior circulation.
Aged ; Brain Ischemia/etiology* ; Endovascular Procedures/methods* ; Humans ; Male ; Malnutrition/etiology* ; Middle Aged ; Nutritional Status ; Retrospective Studies ; Stroke/surgery* ; Thrombectomy/methods* ; Treatment Outcome

The National Certification Commission for Acupuncture and Oriental Medicine (NCCAOM) is the only national institution for the accreditation of clinical practice of acupuncture and Oriental (Chinese) Medicine in the United States. Its qualification certificate or examination certificate is a mandatory document for 47 states and Washington, D.C. to issue the practice license. According to the latest information of the NCCAOM official website, this paper introduced the preceptor qualifications of the apprenticeship, studying hours, quality control, and the evaluation at the end of apprenticeship. The paper also discussed the enlightening and referential effects of the American system to apprenticeship policy in China.
Acupuncture Therapy ; Certification ; China ; Medicine, East Asian Traditional ; Moxibustion ; United States

Objective: To explore the feasibility of glans-preserving surgery (GPS) in the treatment of superficial penile squamous cell carcinoma (PSCC) with the lesion diameter of ≥2 cm. METHODS: We retrospectively analyzed the clinical data on 69 cases of superficial PSCC (≤T1aN0) treated by GPS (n = 36) or radical surgery (total or partial penectomy, n = 33) from July 2007 to July 2017. RESULTS: The mean tumor diameter and depth of invasion were 3.16 (2.0－6.0) cm and 0.89 (0.5－2.0) cm in the GPS group and 3.56 (2.0－6.0) cm and 1.89 (0.6－4.0) cm respectively in the radical surgery group. The patients were followed up for 10－102 (mean 42) months, during which, 5 patients in the GPS group developed local recurrence at 40 days and 2, 4, 7 and 9 months postoperatively, again underwent gansectomy, partial penectomy or GPS, and experienced no more recurrence during the follow-up of 54, 34, 39, 66 and 70 months. No local recurrence was observed in the radical surgery group, and none of the 69 patients experienced lymph node metastasis or died during the follow-up. CONCLUSIONS GPS is safe and efficient for the treatment of superficial PSCC with the lesion diameter of ≥2 cm.

OBJECTIVE: Primary mediastinal yolk sac tumor, which is also known as endodermal sinus tumor, is a rare but lethal neoplasm and its prognosis is very dismal. The current treatment for this tumor is controversial, and chemotherapy combined with resection of residual lesions is adopted sometimes. We summarized the experience of seven primary mediastinal yolk sac tumors treated with platinum-based chemotherapy and extended resection in Peking University First Hospital. METHODS: Clinicopathological data of the patients with primary mediastinal yolk sac tumor who received operation in Peking University First Hospital between August 2014 and August 2018 were collected and analyzed retrospectively. RESULTS: We experienced seven primary mediastinal yolk sac tumors during this period. Computed tomography scan revealed an anterior mediastinal tumor in all the patients and all of them had markedly raised alphafetoprotein (AFP) and normal β-human chorion gonadotropin (β-HCG). Five patients underwent needle core biopsy before treatment, which showed a mediastinal yolk sac tumor. All of these patients received preoperative platinum-based chemotherapy and they all presented partial response according to computed tomography. Two other patients did not receive preoperative biopsy, so they directly underwent extended resection. All of the seven patients underwent operation successfully and two of them experienced postoperative complications, including one with pneumonia and the other with atelectasis. R0 resection was achieved in six patients and R1 resection was achieved in the other patient. According to postoperative pathology, there were one microcyst subtype, one adenoid subtye, one giant capsule subtype and two hybrid subtypes. Surprisingly, there were no yolk sac tumor tissue in the other two patients after preoperative chemotherapy. All the patients received postoperative chemotherapy, excluded one patient who was unable to tolerate chemotherapy after operation. Three patients experienced postoperative pulmonary metastases within one year and two of them died soon. The other patient received chemotherapy and immunotherapy after recurrence and he was alive at the time of writing. Four other patients were alive without recurrence and metastasis. CONCLUSION Primary mediastinal yolk sac tumor is rare and its prognosis is poor. A multimodality approach including adjuvant chemotherapy and resection of residual lesions is the optimal treatment and it may lead to long-term survival.
Endodermal Sinus Tumor ; Humans ; Male ; Mediastinal Neoplasms ; Mediastinum ; Neoplasm Recurrence, Local ; Retrospective Studies

Objective To investigate the effect of resveratrol on the expression of peroxisome proliferator activated re-ceptor γ coactivator-1α(PGC-1α)in skeletal muscle of rats with chronic obstructive pulmonary disease(COPD). Methods A total of 45 male Sprague Dawley rats were randomly divided into control group,model group and resveratrol group,15 rats in each group. The rats in the model group and resveratrol group were made COPD model through the intratracheal instillation of lipopolysaccharide and repeated smoke exposure,except the rats in the control group. From the 29th day of smoke exposure,the rats in the control group and model group were given 2 mL saline by gavage,once a day for 30 days;and the rats in the resvera-trol group were given 2 mL resveratrol solution by gavage(100 mg·kg - 1 ·d - 1 ),once a day for 30 days. After 30 days of con-tinuous gavage,the rats were sacrificed,then arterial blood and skeletal muscles were harvested. The level of tumor necrosis factor-α(TNF-α)in serum and skeletal muscle of rats was detected by enzyme linked immunosorbent assay. The expression of PGC-1α,nuclear respiratory factor 1(NRF1),mitochondrial transcription factor A(Tfam)and cytochrome C oxidase Ⅳ(COXⅣ)mRNA in skeletal muscle tissues of rats was determined by quantitative real-time polymerase chain reaction. The expres-sion of PGC-1α,NRF1,Tfam and COX Ⅳ protein was detected by Western blot. Results The level of TNF-α in serum and skeletal muscle tissues of rats in the model group and resveratrol group was significantly higher than that in the control group (P < 0. 01). The level of TNF-α in serum and skeletal muscle tissues of rats in the resveratrol group was significantly lower than that in the model group(P < 0. 01). The expression of PGC-1α,NRF1,Tfam,COX Ⅳ protein and mRNA in skeletal mus-cle tissues of rats in the resveratrol group and model group was significantly lower than that in the control group(P < 0. 01). The expression of PGC-1α,NRF1,Tfam,COX Ⅳ protein and mRNA in skeletal muscle tissues of rats in the resveratrol group was significantly higher than that in the model group(P < 0. 01,P < 0. 05). Conclusion Resveratrol can reduce the level of TNF-α in serum and skeletal muscle tissues of COPD rats,increase the expression of PGC-1α,thereby improving the mitochon-drial biosynthesis function.