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JSM Renal Medicine

Cite this article: Haifeng Z, Ruilan G (2016) Current Treatment Status of Renal Anemia & New Drug Research and Development Situation of our Institute. JSM Renal Med 1(1): 1006.

*Corresponding authorZhuang Haifeng, Department of Hematology, The First Affiliated Hospital of Zhejiang Chinese Medical University, 54 You-dian Road, Hangzhou, China, Postcode: 310006; Email:

Submitted: 27 May 2016

Accepted: 08 November 2016

Published: 10 November 2016

Copyright© 2016 Haifeng et al.

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Keywords• Renal anemia• Chinese medicine• Erythropoietin

Short Communication

Current Treatment Status of Renal Anemia & New Drug Research and Development Situation of our InstituteZhuang Haifeng* and Gao RuilanDepartment of Hematology, The First Affiliated Hospital of Zhejiang Chinese Medical University, China

Abstract

Renal anemia results from not only relative or absolute insufficiency of erythropoietin (EPO) caused by different kinds of kidney diseases, but also some toxic substances in uremia patients’ plasma which are interfered with production and metabolism of RBC [1]. It is one of the major complications of chronic renal failure (CRF). Its extent is positively correlated with renal hypofunction degree. Renal anemia can occur when chronic glomerular filtration function decreases by more than 50 percent. Renal anemia has high incidence in crowd with chronic kidney disease (CKD). Its effective treatment has a great influence on CRF patients’ prognosis and their life quality. If renal anemia is untreated or improper treated, it may cause many kinds of physiological abnormalities, including oxygen transport and reduction in tissue oxygen utilization, increase of cardiac output, cardiac enlargement, ventricular hypertrophy, angina, heart failure, decline of cognitive ability, allergy, menstrual disorder, sexual dysfunction, and decline of immune function and so on. Therefore, correction of renal anemia posses an important clinical significance.

INTRODUCTION

Current treatment status of western medicine

The treatment of renal anemia is now mostly adopting comprehensive treating measures, including recombinant human EPO treatment, maintenance chronic dialysis, kidney transplantation, adequate nutrient intake, a little blood transfusion, prevention and correction of metabolic acidosis and electrolyte imbalance, prevention of infection, treatment of bleeding tendency and so on [2]. Long-term medical treatment includes complementing chalybeate and folic acid. At present, the clinical efficacy of EPO in correction of renal anemia has been proved by plenty results of clinical and animal experiments. As for the patients whose serum creatinine is equal or greater than 176.8 umol/L, the most likely causation of anemia is lack of EPO [3]. Therefore, the application of EPO is an important part in treatment of CKD patients’ anemia.

Chinese medicine for understanding renal anemia

Renal anemia belongs to Chinese medicine disease categories of Xulao, dizziness, lumbago, kidney overstrain and so on. The location of this disease is kidney, and its main pathogenesis are nephron loss, weakness of the spleen and stomach, embodied

domination of pathogen, weakness of the five internal organs, deficiency of qi and blood caused by consumptive disease. The occurrence of this disease is always associated with kidney, spleen, stomach. Kidney stores essence and the main bone produces marrow. The kidney’s function of producing marrow contains marrow hematopoietic system which is recognized by modern medicine. The spleen governs the blood and the kidney stores essence. Essence and blood share with the same origin. Essence and blood interact each other, which is mainly correlated to kidney and spleen. As a result, diagnosis and treatment are mostly adopting the therapies of invigorating spleen and kidney, tonifying kidney and qi, reinforcing deficiency and clearing turbidity, etc.

Chinese medicine research and development situation of our institute

Ginseng has the effect of reinforcing qi and nourishing blood and its mainly effective components is total ginsenoside extracted from Ginseng Root, which was studied in our hospital since 1993. We have proved that total ginsenoside can not only promote the proliferation of hematopoietic stem/progenitor cells, but also induce them to differentiate towards erythroid cells and myeloid cells. Meanwhile, we developed the total ginsenoside ginseng as

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our hoepital’s drug, named as Shengxueling Capsule, which was the first-generation product. It has been applied in the treatment of patients with different kinds of hemocytopenia [4].

The second-generation product of Pai-neng-da (PND) capsules, containing effective component of Panaxadiol, isolated from total ginsenoside. It has successfully obtained two certificates awarded by Food and Drug Administration of China (CFDA) as new Chinese patent medicine for clinical trial permission [5]. We have proved that component of Panaxadiol possess dual effect of promoting hematopoiesis and regulating immune function in pancytopenia caused by renal anemia [6,7].

(1) PND and Pai-neng-da (PND) capsules has obtained two certificates as new Chinese patent medicine for clinical study. They are transferred to the phamarceutical enterprise as a technology secret. Now period I clinical trial has been completed, and the safty of the new medicine has been proved. Figure 1 New Chinese medicine obtains two certificates awarded by Food and

Drug Administration of China (CFDA) for clinical trial: ginsenoside (Grant No. 2010L00857) and PND capsules (Grant No. 2010L00856).

Figure 2 Timely varying curves of measured value of platelet after PND capsules treatment).

Figure 3 Therapeutic effect analysis of of PND capsules treating ITP IIa period.

Figure 4 platelet count of different ITP groups after PND capsules treatment.

Figure 5 Therapeutically effect analysis of applying PND to treat ITP.

Figure 6 Through PND treatment, platelet counts of ITP mice model and rats model increase significantly.

Figure 7 Bone marrow pathological section examination of PND treating each ITP mouse model.

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(2) The unblinding result of PND capsules treating ITP IIa period clinical trial suggests definite efficacy. And there are no obvious side effects. ① After two-month treatment with 6 PND capsules (240mg) per day, markedly effective and moderate effective cases account for 37.6%, while in placebo group is 0%. (ITP therapeutic effect criterions are classified into markedly effect, moderate effect, improvement and failure. Center for Drug Evaluation (CDE) of Food and Drug Administration of China (CFDA) regards markedly effective and moderate effective cases as effective cases.) ② After the treatment, the average platelet count of the patients in PND treatment group has risen by 9.97×109/L, while in placebo group has fallen by 3.60×109/L. The therapeutic effect shows significant difference in those two

Figure 8 PND promotes the increase in PB CD4+/CD25+ cell of rats Peripheral Blood (PB) CD4+ /CD25+ T lymphocyte ratioA. Normal 3.73; B. model 0.93; C. PND low dosage 2.14; D. PND middle dosage 2.91; E. PND high dosage 3.13; F. selaginella moellendorfii hieron 3.71; G. prednisone 4.72.

Figure 9 PND promotes the increase in PB CD8+ cell of rats Peripheral Blood (PB) CD8+ T lymphocyte ratioA. Normal 33.4; B. model 21.9; C. PND low dosage 20.9; D. PND middle dosage 24.8; E. PND high dosage 25.7; F. selaginella moellendorfii hieron 18.6; G. prednisone 31.2.

groups.

After two-month treatment with 6 PND capsules (240mg) per day, the platelet count of patients in treatment group increases appearently, while in placebo group decreases.

After two-month treatment with 6 PND capsules (240mg) per day, markedly effective and moderate effective cases account for 37.6%, while in placebo group is 0%. (ITP therapeutic effect criterions are classified into markedly effect, moderate effect, improvement and failure. Center for Drug Evaluation (CDE) of Food and Drug Administration of China (CFDA) regards markedly effective and moderate effective cases as effective cases.)

(3) As a key fundig program (2011ZDA021) of provincial

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Haifeng Z, Ruilan G (2016) Current Treatment Status of Renal Anemia & New Drug Research and Development Situation of our Institute. JSM Renal Med 1(1): 1006.

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medical and health platform, in this clinical research, 41 patients are treated only with 6 PND capsules (240mg) per day for three months. It turns out that markedly effective and moderate effective cases account for 39.0% (4 markedly effective cases, 12 moderate effective cases, 7 improved cases, 18 ineffective cases). The average platelet count has risen by 23.02 ± 37.28×109/L, which completely accords with clinical research results of the period IIa.

Treating 41 patients only with 6 PND capsules (240mg) per day for three months, the platelet count of the patients in treatment group is obviously higher than before treatment. The average platelet count has risen by 23.02 ± 37.28×109/L.

In the treatment, 41 patients are treated only with 6 PND capsules (240mg) per day for three months. It turns out that markedly effective and moderate effective cases account for 39.0%, which completely accords with clinical research results of the period IIa (the outcome of the report is earlier than unblinding time of the period IIa).

(5) Establish mice model and rats model to observe the therapeutic effect of PND capsules. After PND treatment, the platelet count increased significantly. And PND treatment can reduce the compensatory increase in the number of bone marrow megakaryoblasts and promegakaryocytes, which promotes them maturing into thromocytogenic megakaryocytes. PND participates in immune regulation process through inhibiting phagocytosis frequency and index of peritoneal macrophages. By means of PND treatment, CD4+ and CD25+ cell population are increased, and CD4 +/CD8+ cell ratio rises, thus make abnormal T lymphocyte subsets basically return to normal.

CONCLUSIONSummarizing modern medicine’s research to renal anemia,

it is discovered that EPO is the main hormone to promote the formation of RBCs and increase hemoglobin. When the kidney is widely damaged, the production of EPO will decrease [8,9]. The spleen has certain hematopoietic function. When

the bone marrow function is damaged, spleen can make compensatory extramedullary haematopoiesis. Meanwhile, the combined treatment can also reduce the dosage of EPO, it can partly substitute the kidney function of producing EPO, and another advantage of EPO can prolong dialysis patients’ survival time and improve their living quality. Modern therapy in combination with Chinese Medicine can improve the efficacy and reduce the dosage of EPO in the treatment of renal anemia.

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