Abstract Objectives: to determine the effects of vitamin B12 supplementation on neuropsychological function and disease progression in middle aged and elderly patients with cognitive impairment. Methods: this was a prospective case-control study. From May 2020 to May 2021, 307 participants clinically diagnosed with cognitive impairment in the Department of Neurology of the First Affiliated Hospital of Chongqing Medical University were enrolled. A total of 115 patients were included in this study. Meanwhile, 115 participants with cognitive impairment were randomly assigned in equal proportions to two groups: vitamin B12 treatment group (n = 58, vitamin B12 500 mg/d intramuscularly for seven days, followed by cobamamide 0.25 mg/d and methylcobalamin 0.50 mg/d) and the control group (n = 57). Demographic characteristics and blood biochemical variables were obtained from all participants. Cognitive performance was measured using the Mini-Mental State Examination (MMSE) and Montreal Cognitive Assessment (MoCA). Cognitive performance was measured at baseline and after six months. Results: the vitamin B12 supplementation treatment patients who presented with cognitive impairment showed significant improvement, especially in attention, calculation (p < 0.01) and visual-constructional ability (p < 0.05), in their neuropsychological function compared to their matched group. Conclusion: vitamin B12 supplementation may improve frontal function in patients with cognitive decline. Vitamin B12 levels should be investigated in all patients with cognitive impairment.

Resumen Objetivos: determinar los efectos de la suplementación con vitamina B12 en la función neuropsicológica y la progresión de la enfermedad en pacientes de mediana edad y adultos mayores con deterioro cognitivo. Métodos: se realizó un estudio prospectivo de casos y controles; se estudiaron 307 participantes, desde mayo de 2020 a mayo de 2021, diagnosticados clínicamente con deterioro cognitivo en el Departamento de Neurología, el Primer Hospital Anexado a la Universidad Médica de Chongqing. En el estudio se incluyeron un total de 115 pacientes con deterioro cognitivo que fueron asignados aleatoriamente en proporciones iguales a dos grupos: un grupo de tratamiento con vitamina B12 (n = 58, vitamina B12 500 mg/d intramuscular durante 7 días, seguido de cobamamida 0,25 mg/d y metilcobalamina 0,50 mg/d) y un grupo de control (n = 57). Se obtuvieron las características demográficas y las variables bioquímicas sanguíneas de todos los participantes. El rendimiento cognitivo se midió mediante el miniexamen del estado mental (MMSE) y la evaluación cognitiva de Montreal (Moca) al inicio del estudio y a los 6 meses. Resultados: los pacientes con deterioro cognitivo que recibieron tratamiento de suplementación con vitamina B12 mostraron una mejora significativa, especialmente en la atención, el cálculo (p < 0,01) y la capacidad visuoespacial (p < 0,05), en su función neuropsicológica en comparación con el grupo control. Conclusión: la suplementación con vitamina B12 puede mejorar la función frontal en pacientes con deterioro cognitivo. Los pacientes con deterioro cognitivo deben conocer sus propios niveles de vitamina B12.

SUMMARY OBJECTIVE: This study aimed to investigate the sex-specific association between hyperuricemia and the risk of hypertension and whether obesity mediates this association. METHODS: This study included 31,395 (47.0% women) adults without hypertension, cardiovascular disease, or cancer at baseline who completed at least one follow-up annual examination between 2009 and 2016. Cox regression models were performed to calculate hazard ratios and 95% confidence intervals. Mediation analysis was conducted to estimate the effect of body mass index on the association between hyperuricemia and hypertension. RESULTS: During a median 2.9-year follow-up, hyperuricemia was significantly associated with a higher risk of hypertension (HR 1.15, 95%CI 1.07-1.24 for all participants; HR 1.12, 95%CI 1.03-1.22 for men; and HR 1.23, 95%CI 1.02-1.48 for women) after adjustment for potential confounders. Additional adjustment for body mass index attenuated this association (HR 1.09, 95%CI 1.08-1.10 for all participants; HR 1.07; 95%CI 0.98-1.16 for men; HR 1.18; 95%CI 0.96-1.44 for women). Mediation analysis showed that BMI partially mediated the relationship between hyperuricemia and incident hypertension (indirect effect HR 1.09, 95%CI 1.08-1.10; direct effect: HR 1.08, 95%CI 1.02-1.15). The percentage of the mediation effect was 53.2% (95%CI 37.9-84.5). CONCLUSION: Hyperuricemia is associated with a risk of hypertension in both sexes, and BMI partially mediates hyperuricemia-related incident hypertension.

ABSTRACT Background The purpose is to compare the efficacy and safety of mini percutaneous nephrolithotomy (mini-PCNL) versus standard percutaneous nephrolithotomy (standard-PCNL) in patients with renal stones >2cm. Materials and Methods A systematic literature search was conducted in PubMed, Web of Science, Scopus, and the Cochrane Library databases to identify relevant studies before March 8, 2021. Stone-free rate (SFR), operation time, fever rate, hemoglobin drop, blood transfusion rate, and hospitalization time were used as outcomes to compare mini-PCNL and standard-PCNL. The meta-analysis was performed using the Review Manager version 5.4. Results Seven randomized controlled trials were included in our meta-analysis, involving 1407 mini-PCNL cases and 1436 standard-PCNL cases. Our results reveal that, for renal stones >2cm, mini-PCNL has a similar SFR (risk ratio (RR)=1.01, 95% confidence interval (CI): 0.98 to 1.04, p=0.57) and fever rate (RR=1.22, 95% CI: 0.97-1.51, p=0.08). Standard-PCNL was associated with a significantly shorter operating time (weighted mean difference (WMD)=8.23, 95% CI: 3.44 to 13.01, p <0.01) and a longer hospitalization time (WMD=-20.05, 95% CI: -29.28 to -10.81, p <0.01) than mini-PCNL. Subgroup analysis showed hemoglobin drop and blood transfusion for 30F standard-PCNL were more common than mini-PCNL (WMD=-0.95, 95% CI: -1.40 to -0.50, p <0.01; RR=0.20, 95% CI: 0.07 to 0.58, p <0.01). Conclusion In the treatment of >2cm renal stones, mini-PCNL should be considered an effective and reliable alternative to standard-PCNL (30F). It achieves a comparable SFR to standard-PCNL, but with less blood loss, lower transfusion rate, and shorter hospitalization. However, the mini-PCNL does not show a significant advantage over the 24F standard-PCNL. On the contrary, this procedure takes a longer operation time. Trial registration This meta-analysis was reported consistent with the PRISMA statement and was registered on PROSPERO, with registration number 2021CRD42021234893.

Abstract Most chronic kidney disease inevitably progress to renal fibrosis. Tubular epithelial- to-mesenchymal transition (EMT) is recognized to play major roles in renal fibrosis. Oxymatrine (OM) is a major alkaloid component found in a Chinese herb Sophora roots and has many effects. The aim is to investigate the effect of OM on renal tubular EMT and elucidate its mechanism. Mice underwent unilateral ureteral obstruction (UUO) followed by intraperitoneal injection of OM (120 mg/kg) or control vehicle. Human kidney proximal tubular cell line (HK-2) was used and EMT was induced with 5 ng/mL of transforming growth factor-β1 (TGF-β1). In vivo, renal tubulointerstitial fibrosis was induced and E-cadherin was down-regulated, while the expressions of fibronectin (FN), α-smooth muscle actin (α-SMA), TGF-β1 and its type I receptor (TGF-βRI) were up-regulated in UUO mice. In contrast, OM significantly ameliorated renal fibrotic lesions and attenuated the expressions of FN, α-SMA, TGF-β1 and TGF-βRI, but increased E-cadherin in the obstructed kidneys. In vitro, OM abolished TGF-β1-mediated E-cadherin suppression and FN, α-SMA and TGF-βRI induction in HK-2 cells in a dose-dependent manner. These observations strongly suggest that the renal protective effects of OM could be mediated by prevention of EMT and manifested as suppression of TGF-β1 and TGF-βRI expressions.

Abstract To evaluate the effectiveness of regulating insulin sensitivity via the insulin receptor substrate-1 of Zingiber striolatum bud extract in C57BL/KsJ-db/db mice. The C57BL mice were randomly divided into 5 groups (n=10), including normal control group, model group, metformin group, ZS-l (ZS low dose) group, and ZS-h (ZS high dose) group. The body weight and blood glucose were determined weekly. The oral glucose tolerance test, plasma insulin and biochemical parameters, pancreas histopathology, and the expression of insulin receptor substrate-1 were assayed at the end of experimental point. The results showed that Z. striolatum bud extract can significantly decrease the fasting blood glucose and glycated hemoglobin levels and insulin resistance (HOMA-IR) in C57BL mice. Western blot analysis demonstrated Z. striolatum bud extract could regulate the insulin sensitivity by upregulating the express of phospho-insulin receptor substrate-1. In conclusion, Z. striolatum bud extract could prevent the progression of diabetes and pancreatic fibrosis in C57BL mice.

Abstract OATP1A1 is the first and founding member of the Organic anion transporting polypeptides (OATPs) family. OATP1A1 is usually considered to mediate the cellular uptake of endogenous and xenobiotics, such as bile acids, drugs and environmental toxins. However, some new research indicated that the decrease of Oatp1a1 expression can result in the cholestasis, which was confirmed by clinic case of drug-induced cholestatic liver injury and bile duct ligation surgery or Oatp1a1-null mice models. These results suggested that Oatp1a1 does not simply transport bile acids to hepatocytes, as is commonly believed. In this overview, we summarized the advances of OATP1A1 in drug induced toxicity, cholestasis and other pathological states as well as the differences of Oatp1a1 in different gender and age.

RESUMO Para explorar o Impacto Da formação funcional Na qualidade de conclusão Da dificuldade do corpo, OS ginastas rítmicos 24.o com Dez Anos de idade 10-11 foram aleatoriamente divididos EM Grupo de formação funcional Ou Grupo de controlo e EM formação contínua 2h/dia para um mês.A dificuldade do corpo, incluindo dificuldades de equilíbrio, dificuldades de rotação, dificuldades de Salto foram medidas antes e depois Da formação.Os resultados mostraram pontuação total, pontuação Da rotação de Passos de 360°e Salto Split no Grupo de treinamento funcional FOI respectivamente 1.87, 0.77 e 0.42 Pontos Mais elevados do que aqueles no Grupo de controle (todos P<0.05) após o treinamento de um mês. Por conseguinte, Pode concluir-se que a formação funcional baseada no SGF Pode obviamente melhorar a qualidade de conclusão Da dificuldade corporal Da ginástica rítmica juvenil num curto período de tempo.

ABSTRACT To explore the impact of functional training on completion quality of body difficulty, 24 rhythmic gymnasts aged 10-11 years old were randomly and averagely divided into functional training and control group and trained 2h/day for 1 month. Body difficulty – including balance, rotation, and leap difficulties – was measured before and after training. The results showed that the total score, the score of 360° passé pivot and the score of split leap for the functional training group was respectively 1.87, 0.77, and 0.42 points higher than those for the control group (P<0.05) after 1 month of training. Therefore, it can be concluded that functional training based on Functional Movement Screen (FMS) can clearly improve completion quality of body difficulty in juvenile rhythmic gymnastics within a short period of time.

RESUMEN Los resultados mostraron que el grupo de control y el grupo de gimnasia rítmica de 10 a 11 años de edad fueron de dos horas de entrenamiento al día durante un mes. Las dificultades físicas, incluidas las dificultades de equilibrio, rotación y salto, se miden antes y después del entrenamiento. Los resultados mostraron que la puntuación total, la puntuación de 360°passe pivot y la puntuación de split-jump fueron respectivamente 1,87, 0,77 y 0,42 mayores en el grupo de entrenamiento funcional que en el grupo control después de 1 mes de entrenamiento (P< 0,05). Los resultados muestran que el entrenamiento funcional basado en la detección de movimiento funcional (FMS) puede mejorar significativamente la calidad de la realización de las dificultades físicas en la gimnasia rítmica de los adolescentes en un corto período de tiempo.

Abstract Cordyceps militaris is a commonly used edible and medicinal fungus in East Asia. Preparation of the mycelium and fermentation liquid by submerged fermentation using additives such as Panax ginseng for skin whitening applications has attracted wide attention. In the present study, we screened traditional Chinese medicines as additives to the liquid fermentation medium for C. militaris and performed systematical research on the changes of bioactivity and ginsenoside levels during the fermentation process. Total polysaccharide contents, cordycepin content, and polysaccharide molecular weight in the fermentation products were measured by UV spectrophotometry, high-performance liquid chromatography-diode array detection (HPLC/DAD), and gel permeation chromatography-multi angle laser light scattering (GPC-MALLS), respectively. In addition, the ginsenosides Rb1, Re, Rd, Rg1, and pseudoginsenoside F11 in the fermentation products were quantitatively analyzed by ultra-performance liquid chromatography/tandem mass spectrometry (UPLC/MS/MS). Panax ginseng significantly increased the cordycepin and total sugar contents, and the average molecular weight of polysaccharides in the fermentation liquid and the mycelium of C. militaris. At the same time, C. militaris enhanced the production of ginsenoside pseudoginsenoside F11, which is a unique component of Panax quinquefolium. The research provides scientific evidence for the application of C. militaris and P. ginseng as raw materials for food and medicines.

The etiology of polycystic ovary syndrome (PCOS) is complex and the pathogenesis is not fully understood. Some studies have shown that dysregulation of ovarian granulosa cells may be related to abnormal follicles and excessive androgen in women with PCOS. Our team has also confirmed the high expression status of H19 in PCOS patients in the early stage. However, the relationship between H19 and miR-19b in the development of PCOS is still unknown. Therefore, we used bioinformatics to predict the binding sites of human H19 and miR-19b, and of miR-19b and CTGF genes. After the silencing and overexpression of H19, real-time polymerase chain reaction (PCR) was used to detect the expressions of H19, miR-19b, and CTGF. Western blotting was used to detect CTGF protein. Proliferation of KGN cells after H19 silencing was detected by CCK8. Flow cytometry was used to detect the apoptosis of KGN cells after H19 silencing. After the overexpression of H19, it was found that the expression of miR-19b gene decreased and the expression of CTGF increased, whereas silencing of H19 did the opposite. In addition, H19 could promote cell proliferation and decrease cell apoptosis. Finally, luciferase reporter assays showed that the 3′-end sequences of lncRNA H19 and CTGF contained the binding site of miR-19b. In conclusion, our study indicated that lncRNA H19 acted as a ceRNA to bind to miR-19b via a “sponge” to regulate the effect of CTGF on KGN cells, which may play a vital role in PCOS.

RESUMEN Las fracturas tectónicas son un factor determinante en la producción en la formación Longmaxi, en el área Dingsahn. El análisis de la distribución y grado de desarrollo de las fracturas tectónicas es uno de los principales métodos de investigación en nuestros días. Con base en la información de los afloramientos y el núcleo del pozo, el nuevo método binario se presenta como valor de las fracturas rocosas y de energía para decidir el desarrollo de las fracturas tectónicas. De acuerdo con este método, se ofrece una formula de ajuste sobre la relación del valor de la fractura de la roca, la energía y la densidad de la fractura. Al comparar el valor predictivo de la densidad de fractura y el valor observado en 15 pozos, todos los pozos tienen un error relativo menor al 25 %. La predicción de resultados es exacta. Gracias a la formula de ajuste se obtuvo el desarrollo de la fractura y la distribución en el área de estudio. Los resultados muestran que la densidad de la fractura es tan alta como la de la Formación Longmaxi en el área de Dingshan. Los resultados muestran que el sudeste gradualmente reduce la tendencia del noroeste. Estos hallazgos respaldan el futuro de la exploración de gas y petróleo que aporten a las bases geológicas para el área de Dingshan.

ABSTRACT Tectonic fractures are a significant factor for the production of the Longmaxi formation in Dingshan area. The analysis of the distribution and development degree of tectonic fractures is the main research method in present-day. Based on the data of field outcrops and borehole core, the new method-binary method is put forward by rock fracture and energy value to decide tectonic fracture development. According to the method, the fitting formula is offered between the relation of the value of rock fracture, energy, and fracture density. Compared to the fracture density predictive value and the observed value of 15 wells, all wells relative error of less than 25%. The prediction results are accurate. According to the fitting formula of fracture development and distribution in the study area are obtained. The results show that the fracture density is high as a whole of the Longmaxi formation in Dingshan area. Whole shows by southeast to gradually reduce the trend of the northwest. Supported the future of the oil and gas exploration to provide geological basis and guidance in Dingshan area.

RESUMEN Las fracturas estructurales de yacimientos tienes excelentes características fractales y autosimilares. Basados en la teoría fractal, se estudiaron las características fractales superficiales de las fallas y las características fractales de las fracturas en el núcleo del Cinturón Falla-Pliegue de la Formación Xujiahe, área central de Yuanba (China). Luego se estableció una relación cuantitativa para estas relaciones. Según las características fractales de las fallas, se predijo la zona favorable de fractura, lo que ofrece una nueva idea para el conocimiento de esta y a la vez brinda referencias teóricas para la exploración de la zona de desarrollo de la fractura durante la exploración de petróleo y gas. Los resultados muestran lo siguiente: el valor sísmico de la dimensión fractual de la falla en la Formación Xujiahe es de 1.5284; el coeficiente de correlación R2 es mayor a 0.99901; la dimensión del coeficiente de correlación de regresión lineal en el núcleo de la fractura de la Formación Xujiahe es mayor a 0.98; la dimensión fractal D puede reflejar la falla y el grado de desarrollo de la fractura, al igual que la complejidad del sistema de fractura; también puede calcular cuantitativamente la densidad de la fractura del yacimiento en el área; las áreas con capacidad mayor a 1.45 son las zonas de desarrollo de la fractura en el Cinturón Falla-Pliegue del área central de Yuanba; el grado de enriquecimiento de petróleo y gas es alta; las áreas con valor de dimensión fractal entre 0.95 y 1.45 son las zonas de fractura de desarrollo relativo; la dimensión fractal con valores menos a 0.95 son las áreas que carecen de fracturas.

ABSTRACT The reservoir structural fractures have excellent fractal characteristics, as well as self-similarities. Based on the fractal theory, the surface fractal characteristics of faults and the fractal characteristic of fractures in the core of the Xujiahe Formation in the Fault-Fold Belt of the central Yuanba area were studied, and a quantitative relationship was set up between them. Based on the fractal characteristics of faults, predictions were made of the favorable fracture zone, which provides a new idea for the research of fracture, as well as offers theoretical references for exploring the fracture development zone during oil-gas exploration. The results show the following: the seismic value of reflection fault fractal dimension of the Xujiahe Formation is 1.5284; the correlation coefficient R2 is bigger than 0.9901; the capacity dimension linear regression correlation coefficient of the fracture in core of the Xujiahe Formation is bigger than 0.98; the fractal dimension D can well reflect the fault and fracture development degree, as well as the complexity of the fracture system; it can quantitatively calculate the density of the fracture of the reservoir in the area; the areas of capacity dimension bigger than 1.45 are the fracture development zones in the Fault-Fold Belt of the central Yuanba area; the oil and gas enrichment degree is high; the areas with the fractal dimension value between 0.95 and 1.45 are the fracture relatively-developed zones; the fractal dimension with values smaller than 0.95 are the lack of fracture areas.

RESUMO CONTEXTO E OBJETIVO: Enzimas dimetilarginina dimetilaminohidrolase (DDAH), codificadas por genes DDAH1 e DDAH2, desempenham papel fundamental na manutenção da função endotelial. Realizamos estudo tipo caso-controle na população chinesa, com três grupos étnicos (han, kazakh e uygur) para investigar sistematicamente a associação entre a variação de genes DDAH1 e DDAH2 e a hipertensão. DESENHO E LOCAL: Estudo tipo caso-controle no Departamento de Medicina Interna e Diagnóstico Genético, Hospital de Tongji, Tongji Medical College, Universidade de Ciência e Tecnologia de Huazhong. MÉTODOS: Este estudo incluiu 1.224 pacientes com hipertensão e 967 indivíduos saudáveis, sem parentesco, como controles. DDAH1 -396 4 N (GCGT) del > ins, rs3087894, rs805304 and rs9267551 foram genotipados usando o ensaio nuclease TaqMan 5'. RESULTADOS: O genótipo G/C de rs3087894 no DDAH1 foi um fator de risco para a hipertensão arterial no grupo kazakh em modelo codominante (G/C versus G/G; OR 1,39; IC 95%: 1,02-1,88; P < 0,05), com o mesmo resultado no modelo dominante (G/C + C/C versus G/G; OR 1,38; IC 95%: 1,03-1,84; P < 0,05). Em contraste, o genótipo C/C de rs3087894 parecia ser um fator de proteção para a hipertensão no grupo uygur no modelo recessivo (C/C versus G/G + G/C; OR 0,62; IC 95%: 0,39-0,97; P < 0,05). Achado semelhante para rs3087894 também foi observado depois de se ajustar a variante à covariante idade. CONCLUSÃO: Os nossos resultados indicaram que o C-alelo de rs3087894 no DDAH1 foi fator de risco para a hipertensão no grupo de kazakh, mas fator de proteção no grupo de uygur.

CONTEXT AND OBJECTIVE: Dimethylarginine dimethylaminohydrolase enzymes (DDAH), which are encoded by the genes DDAH1 and DDAH2, play a fundamental role in maintaining endothelial function. We conducted a case-control study on a Chinese population that included three ethnic groups (Han, Kazakh and Uygur), to systemically investigate associations between variations in the genes DDAH1 and DDAH2 and hypertension. DESIGN AND SETTING: Experimental study at the Department of Internal Medicine and Genetic Diagnosis, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology. METHODS: This case-control study included 1,224 patients with hypertension and 967 healthy unrelated individuals as controls. DDAH1 -396 4N (GCGT) del>ins, rs3087894, rs805304 and rs9267551 were genotyped using the TaqMan 5' nuclease assay. RESULTS: The G/C genotype of rs3087894 in DDAH1 was a risk factor for hypertension in the Kazakh group in the co-dominant model (G/C versus G/G) (OR 1.39; 95% CI: 1.02-1.88; P < 0.05), with the same result in the dominant model (G/C + C/C versus G/G) (OR 1.38; 95% CI: 1.03-1.84; P < 0.05). In contrast, the C/C genotype of rs3087894 seemed to be a protective factor against hypertension in the Uygur group in the recessive model (C/C versus G/G + G/C) (OR 0.62; 95% CI: 0.39- 0.97; P < 0.05). Similar findings for rs3087894 were also observed after adjusting the variable for the age covariate. CONCLUSION: Our results indicated that the C-allele of rs3087894 in DDAH1 was a risk factor for hypertension in the Kazakh group but a protective factor in the Uygur group.

The Ordovician carbonatites of the Maigaiti slope have formed the conditions for the development of large oil and gas fields with karst reservoirs. This study systematically analyzed the isotopic characteristics of carbon, oxygen, and strontium and enrichment trace elements regularity to examine the geochemical features of the paleo-karstification products, various periods of paleo-karstification, and paleoenvironmental conditions of the Ordovician. Affected by terrigenous clasts, the Lianglitage Formation is composed of limestone with a relatively high 87Sr/86Sr value and a frequently fluctuating sea level, which exhibits an overall increasing-to-decreasing trend variation. Of all samples affected by the atmospheric freshwater leaching effect, δ18O values were negative, and δ13C values varied greatly toward both ends. The fissure/cave infills were rich in Fe and Mn but poor in Sr, and the Sr/Ba value was considerably less than 1, which confirms the existence of ancient weathered crust and the development of an atmospheric freshwater karst environment. Four different paleo-karstification periods were identified according to the carbon and oxygen isotopic characteristics of calcite. Combined with the trace element characteristics of the infills, the paleo-karstification in the Yingshan Formation was subdivided based on three hydrological environment conditions. Erosion modification of buried acid compaction-released water from late-period corrosion pores, caves, and fissures formed by syndiagenetic paleo-karstification and weathered crust bare paleo-karstification due to atmospheric freshwater leaching can significantly improve the reserving and permeability characteristics of the karst reservoir to develop a large paleokarst reservoir.

Molecular-dynamic simulations have been used to study the structure evolution in iron melts rapidly cooled under different pressures. An extreme cooling rate (4×1012K/s) was adopted in the cooling process. The simulation results show that at the ambient pressure, martensitic transformation happened. However, at a pressure of 1.4GPa, the system passes from bcc structure to a less closed packed structure which is composed of both full icosahedra clusters and bcc structure. With the increase of pressures, an amorphous state was observed, and a compacted local structure with more defected icosahedra is obtained. This work contributes to a better understanding about the dynamics of phase transitions in iron under high pressure, especially during the extremely fast cooling process.

Cu xO(x = 1,2)/amorphous compounds have been successfully synthesized by chemical free dealloying and spontaneous oxidation method. Technological parameters, such as the acid concentration and dealloying time strongly influence the crystal type, size and morphology of coppery oxide. The further study shows that with the increase of HCl concentration, the surface coverage rate of Cu2O micro-flowers increases and the sizes of Cu2O micro-flowers get bigger. Moreover, it is observed that cracks are formed on the etched ribbon surface and plentiful Cu2O/CuO particles grow up from these crack walls if the dealloying time extends to long enough. Considering many fascinating properties of Cu2O/CuO particles and the amorphous alloy carrier, potential application fields of these amazing compounds will be developed in future.