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1.
Opt Express ; 32(9): 15156-15165, 2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38859174

RESUMO

Fiber side-pump couplers can enhance the output power of fiber laser due to their dependable and efficient operation and impressive power handling capability. We developed a tellurite fiber side-pump coupler by twisting and fusing a tapered pump fiber onto a target fiber. The effect of twisting parameters on coupling efficiency was comprehensively investigated through theoretical simulations and experiments. Experimental results exhibited an impressive coupling efficiency of 76.5% and a root mean square stability of 0.086% and 0.091% before and after one month, respectively, driven by an incident pump power of up to 4.2 W.

2.
Opt Lett ; 49(9): 2509-2512, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38691756

RESUMO

A high-efficiency and broadband tunable chalcogenide fiber Raman laser with the Fabry-Perot (F-P) cavity formed by the Fresnel reflection was established. A maximum average power slope efficiency of around 43% and a maximum output peak power of about 2.9 W at 2148 nm were demonstrated by using a 2 µm nanosecond pump source. The laser shows a broadened pulse width of 674 ns and a broadband tunability of the central wavelength from 2100 to 2186 nm. The Raman Fabry-Perot cavity constituted by the Fresnel reflection from chalcogenide fiber endfaces can operate at any wavelength without the aid of any additional optical feedback element. This will facilitate the realization of fiber lasers with excellent performance and compact system, especially in the mid-infrared region.

3.
Opt Express ; 31(20): 33401-33402, 2023 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-37859122

RESUMO

We correct the error in [Opt. Express30, 3866 (2022)10.1364/OE.450092], Fig. 6(c). The unit of the vertical axis in the figure should be arbitrary units, not dB. All the conclusions are unchanged after the correction.

4.
Biomed Pharmacother ; 165: 115088, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37413900

RESUMO

Diabetic nephropathy (DN) is one of the serious complications of diabetes mellitus, primarily arising from type 2 diabetes (T2DM), and can progress to chronic kidney disease (CKD) and end stage renal disease (ESRD). The pathogenesis of DN involves various factors such as hemodynamic changes, oxidative stress, inflammatory response, and lipid metabolism disorders. Increasing attention is being given to DN caused by oxidative stress in the mitochondrial pathway, prompting researchers to explore drugs that can regulate these target pathways. Chinese herbal medicine, known for its accessibility, rich historical usage, and remarkable efficacy, has shown promise in ameliorating renal injury caused by DN by modulating oxidative stress in the mitochondrial pathway. This review aims to provide a reference for the prevention and treatment of DN. Firstly, we outline the mechanisms by which mitochondrial dysfunction impairs DN, focusing on outlining the damage to mitochondria by oxidative stress. Subsequently, we describe the process by which formulas, herbs and monomeric compounds protect the kidney by ameliorating oxidative stress in the mitochondrial pathway. Finally, the rich variety of Chinese herbal medicine, combined with modern extraction techniques, has great potential, and as we gradually understand the pathogenesis of DN and research techniques are constantly updated, there will be more and more promising therapeutic targets and herbal drug candidates. This paper aims to provide a reference for the prevention and treatment of DN.


Assuntos
Diabetes Mellitus Tipo 2 , Nefropatias Diabéticas , Medicamentos de Ervas Chinesas , Humanos , Nefropatias Diabéticas/metabolismo , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , Medicamentos de Ervas Chinesas/metabolismo , Diabetes Mellitus Tipo 2/tratamento farmacológico , Rim , Estresse Oxidativo
5.
ACS Appl Mater Interfaces ; 15(25): 30998-31008, 2023 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-37327489

RESUMO

Surface-enhanced Raman scattering (SERS) has great potential in the field of rapid detection of pesticide residues in food. In this paper, a fiber optic SERS sensor excited by evanescent waves was proposed for efficient detection of thiram. Silver nanocubes (Ag NCs) were prepared as SERS active substrates, which had much stronger electromagnetic field intensity than nanospheres under laser excitation due to much more "hot spots". By using the method of electrostatic adsorption and laser induction, Ag NCs were uniformly assembled at the fiber taper waist (FTW) for enhancing the Raman signal. Different from the traditional way of stimulation, evanescent wave excitation greatly increased the interaction area between the excitation and analyte, while reducing the damage of the excited light to the metal nanostructures. The methods proposed in this work have been successfully used to detect the pesticide residues of thiram and showed good detection performance. The detection limits for 4-Mercaptobenzoic acid (4-MBA) and thiram were determined to be 10-9 and 10-8 M, the corresponding enhancement factor could be 1.64 × 105 and 6.38 × 104. Low concentration of thiram was detected in the peels of tomatoes and cucumbers, indicating its feasibility in actual sample detection. The combination of evanescent waves and SERS provides a new direction for the application of SERS sensors, which had great application potential in the field of pesticide residue detection.

6.
Opt Express ; 31(8): 13169-13181, 2023 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-37157460

RESUMO

In this study, (1 + 1) × 1 side-pump couplers made of tellurite fibers were fabricated and investigated. The whole optical design of the coupler was established on the basis of ray tracing models and validated by experimental results. By optimizing the preparation conditions and structural parameters, the tested component achieved a coupling efficiency of 67.52% and an insertion loss of 0.52 dB. To the best of our knowledge, this is the first time a tellurite-fiber-based side-pump coupler was developed. The fused coupler presented will simplify many mid-infrared fiber lasers or amplifier architectures.

7.
Opt Express ; 31(4): 6590-6600, 2023 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-36823911

RESUMO

A dual-peak long period fiber grating (DP-LPFG) sensor functionalized by polypyrrole-chitosan composite was proposed for sensitive detection of Cu2+ ions in aqueous solution. The nitrogen atom on the polypyrrole ring and the amino group on the chitosan chain in the complex matrix can chelate the Cu2+ ions. Thus, the refractive index of the overlay changed and further modulated the transmission spectrum of DP-LPFG. After special design, the double peaks can move in opposite directions with the increase of Cu2+ ion concentration, thereby greatly improving detection sensitivity. The linear sensitivity of the fabricated sensor was measured to be 9.12 and 2.14 nm/ppm (0.61 and 0.14 nm/µM) for concentrations of 0.1-0.5 (1.5 µM-7.5 µM) and 0.5-2 ppm (7.5 µM-30 µM), respectively. In addition, the Langmuir isothermal model was used to evaluate the overall response of the sensor to Cu2+ ions quantitatively, and the detection limit was determined to be 0.05 ppb (0.75 nM). This ingenious sensor offers a new solution for sensitive detection of heavy metal ions in environmental water.

8.
Opt Express ; 31(26): 43342-43350, 2023 Dec 18.
Artigo em Inglês | MEDLINE | ID: mdl-38178429

RESUMO

Multicore fiber (MCF) has a larger mode-area (LMA) compared to traditional single-core fiber, making it easy to get a mode area of more than 3000 µm2 with an optimized MCF structure. Here, a fine-structured 19-core fiber based on chalcogenide glass was fabricated using a combined method involving extrusion, drilling, and rod-in-tube for the first time. The fiber has a minimum transmission loss of 1.8 dB/m at 6.7 µm. When the bending radius exceeds 6 cm, a low bending loss of about 0.6 dB appears, and the experimental data are in good agreement with the simulation results. In addition, the supermode characteristics of the 19-core fiber are analyzed from both perspectives of simulation and experiment, and these results are perfectly in good agreement. We believe it opens a new way to develop high-power and bend-resisting fiber with such kind of multicore structure.

9.
Opt Express ; 30(13): 24072-24083, 2022 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-36225076

RESUMO

The complete removal of the impurities like Se-H in Se-based chalcogenide glasses has been challenging in the development of highly transparent chalcogenide glass fiber. In this paper, several purification methods, including dynamic distillation, static distillation, and combined distillation method, were adopted with an aim of purifying arsenic selenide glass with ultra-low content of the impurities. The experimental results demonstrated that the Se-H can be completely eliminated in the arsenic selenide glass host and fiber without the introduction of any chloride. We further explored the applications of such low loss and Se-H-free chalcogenide glass fiber in the mid-infrared. It was found that, using such a Se-H free fiber, a flattened supercontinuum spectrum above the -30 dB level from 1.2 to 13 µm was generated from the Se-H free fiber with a 5.5 µm laser pumping. The sensitivity was found to be improved 5.1 times for CO2 gas in the 3 to 6 µm wavelength range.

10.
Opt Express ; 30(19): 33817-33825, 2022 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-36242408

RESUMO

A sensitive ammonia sensor based on long-period fiber grating (LPFG) is designed and manufactured for the detection of ammonia concentration in water. Femtosecond laser direct writing technology is used to write LPFGs on standard single-mode silica fiber. A thin layer doped with basic dyes is coated on the optical fiber for sensing by using the sol-gel method. The thicknesses of sol-gel layers, which play a key role in the sensitivity of the LPFG sensor, were carefully studied. Experimental results show that LPFG with a functional layer of ∼340 nm has the best sensing performance, and the detection limit is 0.08 ppm. The response time of the sensor is less than one minute, and the sensor has good repeatability with a short recovery time. Compared with other organic molecules and ions in water, the proposed LPFG sensor has not only good reusability, but also selectivity for the detection of ammonia.

11.
Emerg Med Int ; 2022: 5314105, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36212998

RESUMO

Background: IgA nephropathy (IgAN) is currently the most common primary glomerular disease, accounting for approximately 36.7% to 58.2% of primary glomerular disease in kidney biopsies in China. Definitive diagnosis depends on immunopathological examination of the kidney. The prognosis of this disease was generally considered to be good, but recent studies have found that about half of patients can progress to end-stage renal disease within 30 years of onset. Because the pathogenesis is unknown, there is no specific treatment. Objective: To evaluate the efficacy and safety of glycosides of Tripterygium wilfordii (GTW) in combination with renin-angiotensin system (RAS) inhibitors for the treatment of IgAN. Methods: Search Embase, Pubmed, Cochrane, CNKI, Web of Science, Wanfang, and VIP for all randomized controlled trials (RCTs) on treating IgAN with RASI from the self-built database to December 2021. Relevant data were searched and collected separately by two reviewers. The Cochrane risk of bias model was used for quality assessment, and RevMan 5.3 was used for data analysis. Results: Thirteen Chinese publications with a total of 958 patients were finally included. There was no statistically significant difference in baseline information (including laboratory data and clinical parameters) between the two groups of patients. The urine protein quantification in both groups showed a significant decreasing trend as the treatment duration increased. At 3, 6, 9, and 12 months after treatment, urine protein was significantly lower than the baseline value in both the observation and control groups (P < 0.05). During the follow-up period, there was no statistical difference in blood creatinine (Scr) and eGFR values between the two groups compared with the baseline values (P > 0.05). Patients with CKD stage 2 achieved a higher remission rate compared with patients with CKD stage 3, with a statistically significant difference (P < 0.05), and the difference between the two groups was not significant for patients in the same stage. There was no statistically significant difference in the total effective rate between the two groups (P > 0.05). During the follow-up period, there was no statistically significant difference in urine protein quantification, Scr, and eGFR between the two groups. In terms of the incidence of adverse reactions, the observation group was less than the control group, and there was a significant difference between the two groups (P < 0.05). Conclusion: GTW combined with RASI is one of the safe and effective treatment modes for IgAN nephropathy. It can not only effectively reduce the excretion of urinary protein in patients and delay the progression of chronic kidney disease but also has less serious side effects and is well tolerated by patients, so it can be a new choice of therapeutic drugs for this group of patients.

12.
J Pers Med ; 12(7)2022 Jul 21.
Artigo em Inglês | MEDLINE | ID: mdl-35887687

RESUMO

COVID-19 and chronic kidney disease (CKD) share similarity in sex bias and key genes in the disease pathway of sex difference. We investigated the sex difference of molecular pathways of four key players of these two diseases using an existing large set of whole genome expression profiles from the kidneys of female and male mouse models. Our data show that there is little to no correlation at the whole genome expression level between female and male mice among these four genes. There are considerable sex differences among genes in upstream regulation, Ace2 complex interaction, and downstream pathways. Snap25 and Plcb4 may play important roles in the regulation of the expression level of Adam17, Tmprss2, and Cd146 in females. In males, Adh4 is a candidate gene for the regulation of Adam17, while Asl, Auts2, and Rabger1 are candidates for Tmprss2. Within the Ace2 complex, Cd146 directly influences the expression level of Adam17 and Ace2 in the female, while in the male Adam potentially has a stronger influence on Ace2 than that of Tmprss2. Among the top 100 most related genes, only one or two genes from four key genes and 11 from the control B-Actin were found to be the same between sexes. Among the top 10 sets of genes in the downstream pathway of Ace2, only two sets are the same between the sexes. We concluded that these known key genes and novel genes in CKD may play significant roles in the sex difference in the CKD and COVID-19 disease pathways.

13.
Oral Health Prev Dent ; 20(1): 193-198, 2022 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-35481343

RESUMO

PURPOSE: The effectiveness of using different laser therapy strategies in adjunct to scaling and root planing (SRP) for treatment of periodontitis remains unclear. This study compared the treatment outcome of SRP and its combination with Er:YAG laser and/or photobiomodulation on patients with severe periodontitis. MATERIALS AND METHODS: A total of 50 patients were included, whose teeth were divided into 4 quadrants: 1. SRP+Er:YAG laser irradiation+photobiomodulation treatment; 2. SRP+Er:YAG laser irradiation treatment; 3. SRP+photobiomodulation treatment; 4. SRP treatment only. An Er:YAG laser at powers of 50 or 40 mJ and an Nd:YAG laser at 50 mJ were used. Patients were followed-up for 3 months. Periodontal clinical parameters (probing depth [PD], clinical attachment level [CAL], plaque index [PLI] and bleeding index [BI]), inflammation factors (melatonin and MMP-8 levels) and pain intensity were compared among the 4 quadrants. RESULTS: The quadrant treated by SRP combined with Er:YAG laser irradiation and photobiomodulation had statistically significantly lower PD? (p = 0.0081 at 1 month; p < 0.0001 at 3 months), CAL? (p = 0.003), PLI ?(p = 0.0011) and BI levels ?(p = 0.005 at 1 month; p = 0.0236 at 3 months) compared with the other 3 quadrants. In addition, melatonin ?(p = 0.0006 at 1 month; p = 0.0002 at 3 months) and MMP-8 levels ?(p = 0.0012; only at 1 month) were also statistically significantly higher. CONCLUSION: Of the treatments tested here, SRP combined with Er:YAG laser irradiation and photobiomodulation had the best short-term outcome for severe periodontitis.


Assuntos
Lasers de Estado Sólido , Melatonina , Periodontite , Humanos , Lasers de Estado Sólido/uso terapêutico , Metaloproteinase 8 da Matriz , Periodontite/radioterapia , Aplainamento Radicular
14.
Phytomedicine ; 99: 154011, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35278897

RESUMO

RATIONALE AND OBJECTIVE: The efficacy of Abelmoschus manihot (AM) in treating of chronic kidney disease (CKD) has been confirmed by prior trials. AM is also commonly combined to other medicines among CKD patients in clinic. This trial aimed at evaluating the safety of AM combination application, and further verifying the efficacy of AM in treating various types of CKD. STUDY DESIGN: A multicentre, prospective, open-label, single-arm trial SETTING AND PARTICIPANTS: Approximately 2000 CKD patients with proteinuria (≥ 150 mg/d), from 105 centres across China INTERVENTIONS: AM was administered to patients three times per day for 24 weeks: the daily dose was based on age (> 12 years old: 2.5 g tid; 6∼12 years old: 1.5 g tid; 2∼6 years old: 1 g tid) OUTCOMES: The efficacy outcomes were the change in 24-hour proteinuria and estimated glomerular filtration rate (eGFR) from baseline to week 24. Safety outcomes included adverse events and laboratory tests. RESULTS: 2054 CKD patients from 105 centres were enrolled in this trial, with 1843 (89.7%) completing the 24-week follow-up. The participants' median age was 44 years old and 44.6% were female. Compared to baseline, 24-hour proteinuria decreased 471 mg (95% confident interval, 367 to 575, p < 0.001) at week 24. eGFR did not change significantly relative to baseline with the mean increase as 1.7 ml/min/1.73 m2 (95% confident interval, -0.3 to 3.7, p = 0.09). 902 (43.9%) participants combined medication to AM during follow-up. The total incidence of adverse events was 12.9%; and the most common adverse events were hyperlipidaemia (4.1%), abnormal liver function (2.3%), upper respiratory infection (1.8%), and hyperglycaemia (1.1%). Combined medications did not change the risk for hyperlipidaemia and upper respiratory infection. The combination application with antiplatelet reagents increased the risk of abnormal liver function, and with calcium channel blockers increased the risk of hyperglycaemia. LIMITATIONS: Single-arm clinical trial and short observation time CONCLUSION: We have provided safety information of AM on various types of CKD in a large trial, especially when combination to medications most commonly prescribed to CKD patients. AM also showed to decrease proteinuria with stable kidney function during follow up. AM is a promising treatment for CKD patients.

15.
Opt Express ; 30(1): 641-649, 2022 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-35201237

RESUMO

Chalcogenide glass possesses outstanding advantages, such as supercontinuum generation, but its nonlinear applications were limited by large zero-dispersion wavelength (ZDW). Traditional suspended-core fibers can shift the ZDW to near IR with a tiny core size of less than 5 µm but a large evanescent wave loss exists in these fibers. In this paper, we prepared a novel suspended-core fiber (SCF) based on chalcohalide glasses for the first time via the extrusion method, in which the ZDW of the fundamental mode in the fiber with a core size of larger than 30 µm was successfully shifted to 2.6 µm. We also calculated confinement loss (CL) of propagation modes and fundamental mode energy ratio in the fiber. We found that the minimum CL ratio of the high order modes (LP11) to the CL of the fundamental mode is 124, indicating that the single-mode operation condition is satisfied when the wavelength is more than 4.6 µm. The lowest transmission loss is 1.2 dB/m at 6.5 µm. An ultra-broad supercontinuum spectrum, covering from 1.6 to 12 µm was generated in this suspended-core fiber pumped by a 5 µm femtosecond laser. Such a wide SC in the chalcogenide SCF is due to the large core size. All these results demonstrate the potential to use the large core SCF in the application of a mid-IR laser.

16.
Opt Express ; 30(3): 3866-3875, 2022 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-35209636

RESUMO

In this article, the chalcogenide slot waveguide is theoretically studied, and the highest power confinement factors of the slot region and the cladding region are obtained to be 36.3% and 56.7%, respectively. A high-sensitivity chalcogenide slot microring resonator sensor is designed and fabricated by electron-beam lithography and dry etching. The structure increases the sensitivity of the sensor compared with the conventional evanescent field waveguide sensor. The cavity has achieved a quality factor of 1 × 104 by fitting the resonant peaks with the Lorentzian profile, one of the highest quality factors reported for chalcogenide slot microring resonators. The sensor sensitivity is measured to be 471 nm/RIU, which leads to an intrinsic limit of detection of 3.3 × 10--4 RIU.

17.
Biosens Bioelectron ; 199: 113860, 2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-34890885

RESUMO

The rapid and reliable detection of bacteria plays an important role in clinical and veterinary practice. A stable, label free, compact, and sensitive long-period fiber grating (LPFG) sensor based on egg yolk antibody (IgY) was proposed for the detection of Staphylococcus aureus (S. aureus). LPFG was fabricated with laser writing technology, and specific IgY was further immobilized on the grating region and then combined with the corresponding bacteria. S. aureus was detected by tracking the change of resonance wavelength in the LPFG transmission spectrum caused by bacteria-antibody interaction induced by the increase of biological cover thickness and density after the immune reaction. The testing results showed that the proposed sensor was selective and sensitive to S. aureus measurement, and the detection limit is approximately 33 CFU/ml. The proposed antibody immobilization method is very simple, and the optical fiber can be manufactured in batch to reduce the cost. The detection time of the sensor is around 20 min, which is fast and suitable for detection. The assay was successfully applied for the quantitative analysis of S. aureus in natural waters and met the needs of on-site screening trace pathogenic bacteria in food safety control.


Assuntos
Técnicas Biossensoriais , Staphylococcus aureus , Anticorpos Antibacterianos , Gema de Ovo , Imunoensaio
18.
Opt Express ; 29(18): 29329-29340, 2021 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-34615044

RESUMO

Spectral fitting method (SFM) was proposed to obtain the refractive index (RI) and thickness of chalcogenide films based on transmission spectra. It extended the Swanepoel method to the films on the order of hundreds of nanometers in thickness. The RI and thickness of the films can be obtained quickly and accurately by using the SFM based on the transmission spectrum with only one peak and valley. The method's reliability theoretically was evaluated by simulation analysis. The results showed that the accuracy of the RI and thickness was better than 0.2% by using the SFM regardless of thin or thick film. Finally, the RI and thickness of the new ultralow loss reversible phase-change material Sb2Se3 films were obtained experimentally by the SFM. This work should provide a useful guideline for obtaining the RI and thickness of the transparent optical films.

19.
Ann Transl Med ; 9(6): 490, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33850887

RESUMO

BACKGROUND: In clinical practice, Chinese herbal medicine (CHM) purportedly has beneficial therapeutic effects for chronic kidney disease (CKD), which include delaying disease progression and dialysis initiation. However, there is a lack of high-quality evidence-based results to support this. Therefore, this study aimed to evaluate the efficacy of CHM combined with Western medicine in the treatment of stage 5 CKD. METHODS: This was a prospective nonrandomized controlled study. Stage 5 CKD (nondialysis) patients were recruited form 29 AAA class hospitals across China from July 2014 to April 2019. According to doctors' advice and the patients' wishes, patients were assigned to the CHM group (Western medicine + CHM) and the non-CHM group (Western medicine). Patient demographic data, primary disease, blood pressure, Chinese and Western medical drugs, clinical test results, and time of dialysis initiation were collected during follow-up. RESULTS: A total of 908 patients were recruited in this study, and 814 patients were finally included for further analysis, including 747 patients in the CHM group and 67 patients in the non-CHM group. 482 patients in the CHM group and 52 patients in the non-CHM group initiated dialysis. The median time of initiating dialysis was 9 (7.90, 10.10) and 3 (0.98,5.02) months in the CHM group and non-CHM group, respectively. The multivariate Cox regression analysis showed that patients in the CHM group had a significantly lower risk of dialysis [adjusted hazard ratio (aHR): 0.38; 95% confidence interval (CI): 0.28, 0.53] compared to those in the non-CHM group. After 1:2 matching, the outcomes of 160 patients were analyzed. The multivariate Cox regression analysis showed that patients in the CHM group had a significantly lower risk of dialysis (aHR: 0.32; 95% CI: 0.21, 0.48) compared to patients in the non-CHM group. Also, the Kaplan-Meier analysis demonstrated that the cumulative incidence of dialysis in the CHM group was significantly lower than that in the non-CHM group (log-rank test, P<0.001) before and after matching. CONCLUSIONS: This study suggest that the combination of CHM and Western medicine could effectively reduce the incidence of dialysis and delay the time of dialysis initiation in stage 5 CKD patients.

20.
Altern Ther Health Med ; 27(6): 16-24, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33245707

RESUMO

Context: Evidence from multiple studies has revealed that it's meaningful to evaluate the clinical significance of CD146 because it's related to an early diagnosis of chronic renal failure as well as to the severity of illness and the patient's prognosis. Objective: The current study intended to evaluate the therapeutic effects of Shendibushen on the clinical parameters of blood and urine and on fibrosis in the kidney in a rat model, using simulated renal tissue fibrosis that was surgically induced with unilateral ureteral obstruction (UUO). Also, our research team intended to analyze the metabolic pathway activated by Shendibushen both in rat and human kidneys through use of the Kyoto Encyclopedia of Genes and Genomes (KEGG) database and the GeneNetwork. The aim is to discover if a connection existed between CD146 and key genes in these pathways. Design: The research team conducted an animal study in Wistar rats. Intervention: The rats were divided into 5 groups of 14 animals each: (1) blank control group, (2) sham control group, (3) model group, (4) Niaoduqing group, and (5) Shendibushen group. Three groups had UUO surgically induced-the model, Niaoduqing, and Shendibushen groups. The sham control group received sham surgery, and the blank control group received no surgery. The Shendibushen and Niaoduqing groups received the relevant capsules once a day at a fixed time, for a total of 28 days. Outcome Measures: The levels of serum creatinine, blood urea nitrogen, microalbuminuria, serum soluble CD146, and urinary soluble CD146 were measured on the 14th and 28th days after modeling the rats. The degree of renal interstitial fibrosis was examined by hematoxylin and eosin (HE) staining and Masson trichrome staining. The changes at transcriptome level were obtained by target tissue sequencing. The KEGG database was used to analyze the potential pathway activated by the Shendibushen treatment. The GeneNetwork analysis was used to validate the correlation and identify the connections between CD146 and the key genes of the potential pathways. Results: Shendibushen capsules decreased the degree of renal interstitial fibrosis in the UUO rat model and reduced the serum creatinine, blood urea nitrogen, microalbumin, serum sCD146, and urinary sCD146 significantly compared to the model group (P < .05). Upon analysis of the metabolic pathways activated by Shendibushen, the study further verified, through use of the KEGG database, that CD146 activated the nuclear factor kappa B1 (NF-κB1) and transforming growth factor beta 1 (TGF-ß1)/ SMAD family member 2 (SMAD2) pathways. Conclusions: CD146 could become an early indicator in clinical monitoring. CD146 has a function related to the NF-κB1and TGF-ß1/ SMAD2 pathways under Shendibushen treatment.


Assuntos
Nefropatias , Insuficiência Renal Crônica , Obstrução Ureteral , Humanos , Ratos , Animais , Fator de Crescimento Transformador beta1/metabolismo , Fator de Crescimento Transformador beta1/farmacologia , Fator de Crescimento Transformador beta1/uso terapêutico , Antígeno CD146/metabolismo , Antígeno CD146/farmacologia , Creatinina/farmacologia , Creatinina/uso terapêutico , Ratos Wistar , Transdução de Sinais , Nefropatias/tratamento farmacológico , Nefropatias/etiologia , Nefropatias/metabolismo , Obstrução Ureteral/complicações , Obstrução Ureteral/tratamento farmacológico , Obstrução Ureteral/metabolismo , Redes e Vias Metabólicas , Fibrose
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