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1.
Zhongguo Zhen Jiu ; 44(2): 144-148, 2024 Feb 12.
Artículo en Inglés, Chino | MEDLINE | ID: mdl-38373758

RESUMEN

OBJECTIVES: To observe the clinical efficacy of heat-sensitive moxibustion combined with Xiangwu powder in treating erectile dysfunction with kidney deficiency and blood stasis. METHODS: A total of 80 patients with erectile dysfunction of kidney deficiency and blood stasis were randomly divided into a comprehensive group (40 cases, 1 case dropped out) and a Chinese herb group (40 cases, 2 cases dropped out). In the Chinese herb group, Xiangwu powder was applied orally, one dose per day. On the basis of the Chinese herb group, heat-sensitive moxibustion was applied after detecting the heat-sensitive points in the areas of Guanyuan (CV 4), Zhongji (CV 3), Qihai (CV 6) and bilateral Xuehai (SP 10), Sanyinjiao (SP 6) in the comprehensive group, once a day, 5 times a week. Both groups were treated for 4 weeks. The international index of erectile function-5 (IIEF-5) score, erectile hardness score (EHS), nocturnal penile tumescence and rigidity (NPTR) indexes (nocturnal penile erection frequency, total duration of penile erection, duration of penile head hardness ≥60%, duration of penile root hardness ≥60%, percentage change in penile head circumference, percentage change in penile root circumference), TCM syndrome score, and penile vascular function indexes (peak systolic velocity [PSV], end diastolic velocity [EDV], and resistance index [RI] of penile cavernosal artery) were compared in the patients of the two groups before and after treatment, and the clinical efficacy was evaluated. RESULTS: After treatment, the IIEF-5 scores, EHS, PSV, RI, and NPTR indexes were increased compared with those before treatment (P<0.01), while the TCM syndrome scores and EDV were decreased compared with those before treatment (P<0.01) in the two groups.The IIEF-5 score, EHS, PSV, RI, and NPTR indexes in the comprehensive group were ascended compared with those in the Chinese herb group (P<0.01), while the TCM syndrome score and EDV in the comprehensive group were lower than those in the traditional Chinese herb group (P<0.01). The total effective rate of the comprehensive group was 94.9% (37/39), which was higher than 78.9% (30/38, P<0.05) of the Chinese herb group. CONCLUSIONS: The combination of heat-sensitive moxibustion and Xiangwu powder can effectively treat erectile dysfunction of kidney deficiency and blood stasis, improve patients' erectile function, enhance their erection hardness, and improve their penile vascular function and clinical symptoms.


Asunto(s)
Disfunción Eréctil , Moxibustión , Masculino , Humanos , Disfunción Eréctil/tratamiento farmacológico , Polvos/uso terapéutico , Calor , Riñón
2.
Pharm Biol ; 61(1): 488-498, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36895195

RESUMEN

CONTEXT: Plastics can break down into millions of microplastic (MPs, < 5 mm) particles in the soil and ocean. These MPs can then affect the function of the reproductive system. There is currently no effective solution to this problem aside from traditional Chinese medicine. We have previously used Yishen Tongluo formula (YSTL) to treat sperm DNA damage caused by some toxic substances. OBJECTIVE: To investigate the mechanism underlying the repair of mouse sperm DNA fragmentation caused by polystyrene microplastics by YSTL. MATERIALS AND METHODS: An animal model of polystyrene microplastic (PS-MP)-induced sperm DNA damage was replicated by gavage of SPF ICR (CD1) mice PS-MPs at 1 mg/d and treated with YSTL at 11.89, 23.78 and 47.56 g/kg, respectively, for 60 days. The Sperm DNA fragmentation index (DFI) of each group was detected and compared. The target genes of YSTL identified by transcriptomic and proteomic analyses were validated by qRT-PCR and western blotting. RESULTS: The DFI of the PS group (20.66%) was significantly higher than that of the control group (4.23%). The medium and high doses of the YSTL group (12.8% and 11.31%) exhibited a significant repairing effect. The most enriched pathway was PI3K/Akt. TBL1X, SPARC, hnRNP0, Map7D1, Eps8 and Mrpl27 were screened and SPARC was validated. DISCUSSION AND CONCLUSIONS: The precise mechanism by which YSTL inhibits PD-MPs DNA damage may be associated with the PI3K/Akt pathway and SPARC. It provides a new direction for using traditional Chinese medicine to prevent and repair reproductive system injury caused by MPs.


Asunto(s)
Microplásticos , Plásticos , Masculino , Ratones , Animales , Microplásticos/metabolismo , Microplásticos/farmacología , Plásticos/metabolismo , Plásticos/farmacología , Poliestirenos/toxicidad , Poliestirenos/metabolismo , Semen , Fragmentación del ADN , Fosfatidilinositol 3-Quinasas/metabolismo , Proteómica , Proteínas Proto-Oncogénicas c-akt/metabolismo , Ratones Endogámicos ICR , Espermatozoides
3.
Zhonghua Nan Ke Xue ; 29(12): 1010-1017, 2023 Dec.
Artículo en Chino | MEDLINE | ID: mdl-38639954

RESUMEN

OBJECTIVE: In order to exploring Erectile Dysfunction(ED) syndrome and syndrome differentiation based on latent structure to provide objective evidence to support Traditional Chinese Medicine(TCM) dialectic. METHODS: Cases and clinical experience in the treatment of erectile dysfunction in Chinese medicine in CNKI, Wanfang Database, cqVIP Database, were searched. Time from the database construction to January, 2023. Extraction and specification of symptom data with reference to national standards. Lantern 5.0 software was used to make the latent structure of the data based on LTM-EAST method. Latent probability, conditional probability, information coverage, mutual information and other data were combined to manually interpret the model and perform clustering analysis on the latent classes to analyze the symptomatic features and clinical evidence of erectile dysfunction and establish the rules of identification. RESULT: A total of 361 cases of erectile dysfunction were included, 21 latent variables were constructed, 9 comprehensive clustering models and 13 discriminative rules were established. The pathological factors of the obtained erectile dysfunction are dampness, heat, yin deficiency, blood stasis, spleen deficiency, kidney deficiency, liver depression, and qi stagnation. The certificate types are stasis of blood, liver qi stagnation, damp-heat entrapment (dampness is heavy, heat is heavy, damp-heat is heavy), yin deficiency (yin deficiency with heat, kidney yin deficiency), vital fire failure, qi deficiency (qi deficiency with heat, kidney qi deficiency), heart and spleen deficiency, panic injury to kidney, spleen and kidney deficiency. CONCLUSION: The common types of erectile dysfunction obtained are generally consistent with existing guidelines, but more subcategories exist in the certificate type. The presence of symptoms that cannot be well matched in some of the certificate types is presumed to be due to the complex pathogenesis of erectile dysfunction common compound evidence, many evidence models are seen in the main symptoms of liver qi stagnation evidence pulse strings, suggesting that clinical treatment should pay attention to the regulation of emotional and moral, to ease the patient's emotions. The corresponding dialectical rules can quantify the dialectical criteria and provide an objective basis for non-TCM professionals to clinically determine the TCM evidence type of patients.


Asunto(s)
Disfunción Eréctil , Deficiencia Yin , Masculino , Humanos , Deficiencia Yin/diagnóstico , Disfunción Eréctil/diagnóstico , Medicina Tradicional China/métodos , Síndrome
4.
Artículo en Inglés | MEDLINE | ID: mdl-36554698

RESUMEN

Oily sludge is one of the main hazardous wastes which seriously endangers the ecological environment and human health. In this paper, in order to effectively treat oily sludge, a novel high-speed stirring (HSS) method was proposed to clean oily sludge, and the main parameters affecting the residual oil rate of oily sludge were studied experimentally. Firstly, the cleaning time and stirring speed were optimized in the one-stage HSS cleaning, and then the optimal cleaning time of two-stage HSS cleaning was determined by the response surface method. The results suggested that the oil can be efficiently separated by high-speed stirring at room temperature, and that the two-stage cleaning with a circular-hole outlet (Rotor-C) followed by a vertical hole-outlet (Rotor-V) presented the best effect. The optimal stirring speed was 6000 r/min, and the optimal cleaning times of the two-stage cleaning were 7 min and 8 min, respectively. After cleaning, the residual oil rate of the treated oily sludge was 1.65%, and the removal rate of the petroleum hydrocarbons was 84.3%.


Asunto(s)
Petróleo , Aguas del Alcantarillado , Humanos , Temperatura , Aceites , Petróleo/análisis , Hidrocarburos
5.
Medicine (Baltimore) ; 101(43): e31226, 2022 Oct 28.
Artículo en Inglés | MEDLINE | ID: mdl-36316921

RESUMEN

BACKGROUND: The incidence of male infertility is increasing in recent years, and the semen routine examination of some patients is normal, but the semen pathological examination shows that the sperm DNA fragmentation index (DFI) is high, and the patients' clinical manifestations are infertility or recurrent abortion of their spouses. At present, there is no special treatment for male infertility caused by high DFI, and traditional Chinese medicine compound prescription shows potential value in the treatment of male infertility. Wuwei Fuzheng Yijing formula (WFY) is an effective prescription for the treatment of sperm DNA damage in male infertility, but there is no strict clinical trial to support its application. Therefore, we designed a randomized controlled trial to evaluate the efficacy and safety of WFY in patients with sperm DNA damage in male infertility. METHODS: In this randomized controlled study, 100 patients who met the inclusion criteria were randomly divided into WFY group and levocarnitine oral solution group. The treatment period was 12 weeks. The main observation index was sperm DFI, and the secondary observation index was sperm concentration, motility, survival rate, and TCM syndrome score. Safety observation indicators will include electrocardiogram, blood tests (including blood routine tests, liver and renal function), routine urine tests, and routine stool tests. All results were evaluated at the 4th and 8th week of the baseline, and the end of treatment. DISCUSSION: This study will provide a basis for the efficacy and safety of WFY in the treatment of sperm DNA damage in male infertility with spleen and kidney qi deficiency and blood stasis.


Asunto(s)
Infertilidad Masculina , Semen , Embarazo , Femenino , Masculino , Humanos , Fragmentación del ADN , Infertilidad Masculina/genética , Espermatozoides/patología , Daño del ADN , Ensayos Clínicos Controlados Aleatorios como Asunto
6.
Medicine (Baltimore) ; 101(41): e31265, 2022 Oct 14.
Artículo en Inglés | MEDLINE | ID: mdl-36253987

RESUMEN

BACKGROUND: Environmental pollution and male infertility have become global public health problems. The presence of microplastics (MPs) has been detected in the human body, and it has also been demonstrated that MPs can cause damage to the reproductive system. Wuwei Fuzheng Yijing Decoction (WWFZYJ) is effective in treating male infertility. Therefore, we designed a clinical randomized controlled trial to observe the effect of WWFZYJ on the content of MPs and semen quality in male infertility patients, and to evaluate its security. METHODS: In this randomized controlled study, 66 eligible patients were randomly assigned in a 1:1 ratio to a treatment group (WWFZYJ Decoction) and a control group (Coenzyme Q10 tablets combined with vitamin E soft capsules) for 8 weeks. The content of MPs in semen, sperm DNA Fragmentation Index (DFI), and semen analysis (including sperm density, sperm count, forward motile sperm, sperm motility, etc) will be used as primary indicators, and Traditional Chinese Medicine (TCM) syndrome scores will be used as secondary indicators. Vital signs (such as respiration, heart rate, body temperature, blood pressure, electrocardiogram, etc), blood routine, urine routine, stool routine, liver function, and renal function will be used as safety indicators. The primary and secondary indicators will be performed at 0th and 8th week, and the safety indicators will be performed at 0th, 4th, and 8th week. DISCUSSION: This study will provide evidence for the efficacy and safety of WWFZYJ in treating male infertility and reducing the content of MPs in semen, and further explore the effects of MPs on male fertility.


Asunto(s)
Infertilidad Masculina , Análisis de Semen , Cápsulas/uso terapéutico , Humanos , Infertilidad Masculina/genética , Masculino , Microplásticos , Plásticos/farmacología , Plásticos/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto , Semen , Motilidad Espermática , Espermatozoides , Comprimidos , Vitamina E/uso terapéutico
7.
Andrologia ; 54(11): e14582, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36068021

RESUMEN

The sperm DNA fragmentation index (DFI) is an objective indicator of male fertility. Currently, effective treatments for high sperm DFI are limited and traditional Chinese medicine (TCM) has certain advantages in this aspect. Yishen Tongluo formula (YSTL), a TCM formula, has been found to reduce DFI in patients. To better understand the mechanisms underlying its activity, we used transcriptomics and proteomics to analyse the potential target gene YSTL repairing tripterygium glycosides (TGs)-mediated sperm DNA damage in rats, followed by validation analyses using RT-qPCR and western blotting, which showed that relative to the control group, DFI was markedly elevated in the TGs group, but markedly lower in the YSTL group relative to the TGs group. KEGG pathway analysis of 119 differentially expressed genes and 158 DEPs identified using trend analysis revealed that they were enriched for apoptosis and base excision repair at the transcriptomic level and for microRNAs in cancer and complement and coagulation cascades at the proteomic level. Ttr and Pnpla2 were identified as potential target genes for YSTL. Our data show that YSTL can protect rat sperm DNA from TGs-induced damage, which may be related to apoptosis, DNA repair and other pathways, and the possible target genes are Ttr and Pnpla2.


Asunto(s)
Proteómica , Transcriptoma , Masculino , Ratas , Animales , Semen , Espermatozoides , Fragmentación del ADN , Daño del ADN
8.
Pharm Biol ; 60(1): 1286-1302, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35797467

RESUMEN

CONTEXT: Di-2-ethylhexyl phthalate (DEHP), a known persistent organic pollutant, can increase the sperm DNA fragmentation index (DFI). OBJECTIVE: To investigate the mechanism underlying the repair of DEHP-induced sperm DNA damage in mice by Wuwei Fuzheng Yijing (WFY) formula. MATERIALS AND METHODS: The potential targets of WFY and sperm DNA fragment (SDF) were obtained from the TCMSP, BATMAN-TCM, OMIM and GeneCards. The protein-protein interaction (PPI) network, GO and KEGG pathway analyses of WFY-SDF were constructed. An animal model of DEHP-induced sperm DNA damage was replicated by gavage of SPF ICR (CD1) mice DEHP at 1 g/kg/d and treated with WFY at 8.92, 17.84 and 35.67 g/kg, respectively, for 60 d. Sperm DFI of each group was detected and compared. The target genes of WFY identified by transcriptomic and proteomic analyses were validated by qRT-PCR and Western blotting. RESULTS: Network pharmacology pathway analysis indicated that PI3K/Akt was the potential target of WFY on SDF. The DFI of the DEHP group (25.48%) was significantly higher than that of the control group (4.02%). The high-dose WFY group (19.05%) exhibited the most significant repairing effect. The related pathways were PI3K/Akt and metabolic. Aass, Aldh1a7, GSTA3, betaine homocysteine S-methyltransferase (Bhmt), Mug2 and Svs1 were screened and Bhmt was validated. DISCUSSION AND CONCLUSIONS: WFY can repair sperm DNA damage caused by DEHP, and the mechanism may be related to PI3K/Akt and metabolic pathways, and Bhmt. This provides a new direction for using traditional Chinese medicine to prevent and repair reproductive system injury caused by pollutants.


Asunto(s)
Fragmentación del ADN , Dietilhexil Ftalato , Medicamentos Herbarios Chinos , Espermatozoides , Animales , Dietilhexil Ftalato/toxicidad , Medicamentos Herbarios Chinos/farmacología , Masculino , Ratones , Ratones Endogámicos ICR , Fosfatidilinositol 3-Quinasas , Proteómica , Proteínas Proto-Oncogénicas c-akt , Semen , Espermatozoides/efectos de los fármacos , Espermatozoides/patología
9.
Medicine (Baltimore) ; 99(43): e22662, 2020 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-33120757

RESUMEN

BACKGROUND: The reproductive dilemma faced by men has always been the focus of the whole society. Idiopathic asthenozoospermia (AZS), as one of the common causes of male infertility, lack of specific treatment. Traditional Chinese medicine has shown potential benefits in the management of male infertility. Yishentongluo decoction (YSTL) is a representative Chinese herbal formula; however, there is still no rigorous clinical trial supporting its application. Therefore, we designed a randomized controlled trial to evaluate the efficacy and safety of YSTL for patients with idiopathic AZS and explain the possible action mechanisms of YSTL in improving sperm motility. METHODS: In this randomized controlled study, a total of 160 eligible patients will be assigned to YSTL group or the Levocarnitine oral solution group in a 1:1 ratio. The treatment period will be 12 weeks and the follow-up period will last 4 weeks. The primary outcome will be the the progressive (motility), sperm rate (%). Secondary outcomes will include the progressive (motility) + non-progressive (motility) sperm rate(%), total effective sperm count, inner mitochondrial membrane potential (MMP) in spermatozoa, and spouse pregnancy rate (%). Safety outcomes will cover electrocardiogram , blood tests (including blood routine test, hepatic function, and renal function), urine routine test, and stool routine test. The semen parameters, sperm MMP test, and all the safety outcomes will be performed at the baseline, 4th, 8th and 12th week. The pregnancy outcome will be evaluated at 4 weeks after treatment. DISCUSSION: This study will provide initial evidence regarding the efficacy and safety of YSTL in the treatment of idiopathic AZS with kidney deficiency and blood stasis pattern. In addition, potential mechanisms of YSTL in improving sperm motility will be explored based on sperm MMP test. TRIAL REGISTRATION: Chinese Clinical Trials Register identifier, ChiCTR2000033290, registered on 26 May 2020.


Asunto(s)
Astenozoospermia/tratamiento farmacológico , Medicamentos Herbarios Chinos/uso terapéutico , Medicamentos Herbarios Chinos/farmacología , Humanos , Masculino , Medicina Tradicional China , Ensayos Clínicos Controlados Aleatorios como Asunto , Espermatozoides/efectos de los fármacos
10.
Chin J Integr Med ; 25(12): 936-938, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31630363

RESUMEN

With the globalisation of Chinese medicine (CM), the local CM education institutions were established in many other countries outside of China. These CM education institutions have formed a new mode in CM education after integrating with local culture, law and national conditions. This article takes New Zealand CM education institutions as an example to discuss the characteristics of CM education under the British education system, aiming to provide ideas on CM education in China and other countries.


Asunto(s)
Terapias Complementarias/educación , Curriculum/normas , Educación Médica/normas , Internado y Residencia/normas , Medicina Tradicional China/normas , Humanos , Nueva Zelanda
11.
Zhonghua Nan Ke Xue ; 25(2): 154-159, 2019 Feb.
Artículo en Chino | MEDLINE | ID: mdl-32216203

RESUMEN

OBJECTIVE: To explore the protective effect of Yishen Tongluo Recipe (YTR) against aberrant sperm DNA methylation in male rats exposed to benzo(a)pyrene (BaP). METHODS: Thirty male SD rats of the SPF grade were randomly divided into three groups of equal number: solvent control, BaP exposure and YTR intervention. The animals of the solvent control group were injected intraperitoneally with 0.5% DMSO while those of the other two groups with BaP at 0.1 mg/kg/d, all for 60 days, and at 31 days of BaP exposure, those of the YTR group were treated intragastrically with YTR for 30 days. Then, the left epididymides were harvested from all the rats and sperm suspensions collected and centrifuged for extraction of sperm DNA. The methylated DNA immunoprecipitation sequencing (MeDIP-seq) technique was used to detect the whole-genome DNA methylation in different groups. RESULTS: Exposure to BaP induced the up-regulation of 828 genes encoding mRNA in the sperm DNA, while YTR intervention produced a significant protective effect on the transforming growth factor ß3 (TGF-ß3), cystic fibrosis transmembrane conductance regulator (CFTR) and recombination activating gene 1 (RAG1), and down-regulated the expressions of 3 227 genes. BaP exposure also caused the up-regulation of 783 genes encoding lncRNA in the sperm DNA, and YTR treatment exhibited an evident protective effect on 62 of the up-regulated genes, induced the down-regulation of 3 378 genes, and showed a protective effect on 56 of the down-regulated genes. CONCLUSIONS: YTR has a protective effect against aberrant sperm DNA methylation in male rats exposed to BaP, which may be associated with lncRNA.


Asunto(s)
Benzo(a)pireno/toxicidad , Metilación de ADN , Medicamentos Herbarios Chinos/farmacología , Espermatozoides/efectos de los fármacos , Animales , Masculino , ARN Largo no Codificante/genética , Distribución Aleatoria , Ratas , Ratas Sprague-Dawley
12.
Zhonghua Nan Ke Xue ; 22(3): 264-7, 2016 Mar.
Artículo en Chino | MEDLINE | ID: mdl-27172669

RESUMEN

In recent years, the incidences of male infertility and recurrent abortion are increasing. The causes of the conditions are varied and complex, but the affected stability of the genetic material in the sperm is an important etiological factor. Environmental pollutants may invade the body through respiration, diet and other channels, resulting in infertility and abortion or even affecting the reproductive system development of the offspring by changing the epigenetics of sperm DNA. In this paper, we propose the idea of using traditional Chinese medicine to prevent environmental pollutant-induced epigenetic changes of sperm DNA, hoping to provide a new insight into the protection against genetic material damage, male infertility, and recurrent abortion caused by environmental pollutants.


Asunto(s)
Daño del ADN/efectos de los fármacos , Medicamentos Herbarios Chinos/farmacología , Contaminantes Ambientales/toxicidad , Epigénesis Genética , Infertilidad Masculina/prevención & control , Medicina Tradicional China , Espermatozoides/efectos de los fármacos , Humanos , Infertilidad Masculina/inducido químicamente , Masculino
13.
Biomed Res Int ; 2014: 418064, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24987681
14.
J Biotechnol ; 117(1): 39-48, 2005 Apr 20.
Artículo en Inglés | MEDLINE | ID: mdl-15831246

RESUMEN

Ricin B (RTB), the non-toxic lectin subunit of ricin, is a promising mucosal adjuvant and carrier for use in humans. RTB fusion proteins have been expressed in tobacco hairy root cultures, but the secreted RTB component of these proteins was vulnerable to protease degradation in the medium. Moreover, castor bean purified RTB spiked into tobacco hairy root culture media showed significant degradation after 24 h and complete loss of product after 72 h. Aqueous two-phase extraction (ATPE) was tested for fast recovery of RTB not only to partially purify the protein but also to improve its stability. Two different polyethylene glycol (PEG)/salt/water systems including PEG/potassium phosphate and PEG/sodium sulfate, were studied. RTB was shown to be favorably recovered in PEG/sodium sulfate systems. Statistical analysis indicated that the ionic strength of the system and the sodium sulfate concentration were important in optimizing the partition coefficient of RTB. A selectivity of almost three could be achieved for RTB in optimized systems, and RTB partitioned in the PEG-rich phase exhibited extended stability. Therefore, ATPE was shown to be effective in initial recovery/purification and stabilization of RTB and may hold promise for other unstable secreted proteins from hairy root culture.


Asunto(s)
Nicotiana/genética , Raíces de Plantas/genética , Ricina/aislamiento & purificación , Medios de Cultivo , Estabilidad de Medicamentos , Plantas Modificadas Genéticamente , Proteínas Recombinantes/aislamiento & purificación , Ricina/química , Solubilidad
15.
J Chromatogr A ; 1069(1): 107-12, 2005 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-15844488

RESUMEN

Tobacco is widely used as a model plant for feasibility studies of recombinant protein production from transgenic plants. However, dealing with large quantities of biomass to recover recombinant proteins is a challenge for down-stream processing. In this study, the effect of isoelectric precipitation on native tobacco protein was first studied. Among the three acids studied, hydrochloric acid is shown to be more effective than acetic or citric acid, and at pH 4, 60% of native tobacco protein was precipitated by HCl. Egg white lysozyme was used as the model protein to test the feasibility of polyelectrolyte precipitation in protein recovery from tobacco extract. Precipitation of lysozyme at pH 7 was shown ineffective probably because of the interference of polyphenolic acids. However, after isoelectric precipitation at pH 5 poly(acrylic) acid (PAA) was shown to precipitate 85% of the soluble lysozyme when the polymer dosage was increased to 1.5 mg polymer/mg lysozyme, while negligible amounts of native tobacco protein was co-precipitated. Lysozyme precipitation by PAA in tobacco extract obtained at pH 5 was also studied, and lysozyme yield was significant improved.


Asunto(s)
Electrólitos/química , Muramidasa/aislamiento & purificación , Nicotiana/enzimología , Extractos Vegetales/química , Precipitación Química , Electroforesis en Gel de Poliacrilamida , Focalización Isoeléctrica
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